The receptor for activated C kinase 1(RACK1)is a protein that plays a crucial role in various signaling pathways and is involved in the pathogenesis of Alzheimer's disease(AD),a prevalent neurodegenerative disease...The receptor for activated C kinase 1(RACK1)is a protein that plays a crucial role in various signaling pathways and is involved in the pathogenesis of Alzheimer's disease(AD),a prevalent neurodegenerative disease.RACK1 is highly expressed in neuronal cells of the central nervous system and regulates the pathogenesis of AD.Specifically,RACK1 is involved in regulation of the amyloid-β precursor protein processing through α-or β-secretase by binding to different protein kinase C isoforms.Additionally,RACK1 promotes synaptogenesis and synaptic plasticity by inhibiting N-methyl-D-aspartate receptors and activating gamma-aminobutyric acid A receptors,thereby preventing neuronal excitotoxicity.RACK1 also assembles inflammasomes that are involved in various neuroinflammatory pathways,such as nuclear factor-kappa B,tumor necrosis factor-alpha,and NOD-like receptor family pyrin domain-containing 3 pathways.The potential to design therapeutics that block amyloid-β accumulation and inflammation or precisely regulate synaptic plasticity represents an attractive therapeutic strategy,in which RACK1 is a potential target.In this review,we summarize the contribution of RACK1 to the pathogenesis of AD and its potential as a therapeutic target.展开更多
Maternal sleep deprivation(MSD)has emerged as a significant public health concern,yet its effects on offspring metabolism remain poorly understood.This study investigated the metabolomic implications of MSD on offspri...Maternal sleep deprivation(MSD)has emerged as a significant public health concern,yet its effects on offspring metabolism remain poorly understood.This study investigated the metabolomic implications of MSD on offspring cognitive development,with a particular focus on alterations in glutamate metabolism.Pregnant rats were subjected to sleep deprivation during late gestation.Plasma and brain samples from their offspring were collected at different postnatal days(P1,P7,P14,and P56)and analyzed using untargeted metabolomics with liquid chromatography-mass spectrometry.Metabolomic analysis revealed significant differences in various amino acids,including L-glutamate,L-phenylalanine,L-tyrosine,and L-tryptophan,which are crucial for cognitive function.Subsequent differential analysis and partial least squares discriminant analysis(sPLS-DA)demonstrated a gradual reduction in these metabolic differences in the brain as the offspring underwent growth and development.KEGG pathway analysis revealed differential regulation of several pathways,including alanine,aspartate,and glutamate metabolism,glutathione metabolism,arginine biosynthesis,aminoacyl-tRNA biosynthesis,histidine metabolism,and taurine and hypotaurine metabolism,at different developmental stages.Mantel and Spearman analyses indicated that the observed changes in metabolites in MSD progeny may be related to various gut microbes,Ruminococcus_1,Ruminococcaceae_UCG-005,and Eubacterium_coprostanoligenes_group.Biochemical assays further demonstrated developmental changes in the L-glutamate metabolic pathway.Collectively,these findings suggest that MSD not only affects maternal wellbeing but also has enduring metabolic consequences for offspring,particularly impacting pathways linked to cognitive function.This highlights the importance of addressing maternal sleep health to mitigate potential long-term consequences for offspring.展开更多
AIM:To explore the relationship between retinal exudative changes in neonates and perinatal toxoplasmosis,others,rubella,cytomegalovirus,and herpes simplex virus(TORCH)infections,as well as the characteristics of TORC...AIM:To explore the relationship between retinal exudative changes in neonates and perinatal toxoplasmosis,others,rubella,cytomegalovirus,and herpes simplex virus(TORCH)infections,as well as the characteristics of TORCH infection in neonates with retinal exudative changes.METHODS:Retrospective study.A total of 612 neonates with retinal exudative changes detected during ophthalmic screening in our hospital from May 2019 to March 2023 were selected.TORCH tests were performed on these neonates,and the results were subjected to statistical analysis to determine the infection characteristics.The neonates with retinal exudative changes were grouped by sex and age,the characteristics of TORCH infection were analyzed,and the positive rates were compared.RESULTS:Among the 612 neonates with retinal exudative changes,the highest positive rate was observed for cytomegalovirus(CMV-IgG)(96.7%),followed by rubella virus(RV-IgG)(73.9%).Mixed infections with two or three viruses were also observed,with the highest positive rate for mixed infection of RV-IgG and CMV-IgG reaching 71.2%.There was no statistically significant difference in TORCH infection among neonates of different sex(P>0.05).However,there were statistically significant differences in RV-IgG and CMV-IgM infections with retinal exudative changes among neonates of different age groups(P<0.05).CONCLUSION:Perinatal TORCH infection may be an important factor causing retinal exudative changes in neonates.The differences in various infections are not related to sex but are related to different age groups.展开更多
Objective To observe the ultrasonic manifestations and age distribution of internal abdominal hernia in children.Methods Data of 53 children with internal abdominal hernia confirmed by operation were retrospectively a...Objective To observe the ultrasonic manifestations and age distribution of internal abdominal hernia in children.Methods Data of 53 children with internal abdominal hernia confirmed by operation were retrospectively analyzed.The ultrasonic findings were observed,and the age distribution of children was analyzed.Results Among 53 cases,"cross sign"was observed in 22 cases(22/53,41.51%),and"hernia ring beak sign"was detected in 26 cases(26/53,49.06%)by preoperative ultrasound,according to which 21 cases were diagnosed as internal abdominal hernia,with the accuracy of 39.62%(21/53).Meanwhile,manifestations of intestinal obstruction were noticed in 48 cases(48/53,90.57%),and intestinal necrosis was considered in 22 cases(22/53,41.51%).Four cases were misdiagnosed as intestinal perforation,appendicitis,intestinal atresia and volvulus,each in 1 case.The onset age of postoperative adhesive band internal hernia was larger than that of mesenteric hiatal hernia(P<0.05),while no significant difference of onset age was found among other types of internal abdominal hernias(all P>0.05).Intestinal ischemic necrosis was found in 25 cases,while the incidence of intestinal necrosis in children aged≤1 year,>1 and≤3 years,>3 and≤7 years and those>7 years was 66.67%(12/18),33.33%(4/12),36.36%(4/11)and 41.67%(5/12),respectively.Conclusion The characteristic ultrasonic findings of internal abdominal hernia in children included"cross sign"and"hernia ring beak sign".Internal abdominal hernia in children under 1 year had high risk of intestinal necrosis.展开更多
Necrotizing enterocolitis(NEC)is a leading cause of death from gastrointestinal disease in premature and low-birth-weight infants.Early detection of severely ischemic or necrotic bowel before perforation is rather dif...Necrotizing enterocolitis(NEC)is a leading cause of death from gastrointestinal disease in premature and low-birth-weight infants.Early detection of severely ischemic or necrotic bowel before perforation is rather difficult.New techniques including multi-omics contribute to better understanding its underlying mechanisms and discovering differe categories of biomarkers.Combination of clinical metrics such as seven components of metabolic derangement(CMD)may provide accurate assessment of its severity.Implementation of quality improvement initiatives including breast milk feeding actually lowers its incidence.展开更多
BACKGROUND Gastric cancer is the fifth most common cancer and the fourth leading cause of death worldwide.Most cases of newly diagnosed gastric cancer involve not only locally advanced tumor growth and regional lymph ...BACKGROUND Gastric cancer is the fifth most common cancer and the fourth leading cause of death worldwide.Most cases of newly diagnosed gastric cancer involve not only locally advanced tumor growth and regional lymph node metastases but also distant metastases.We report a rare case finding of a mass in the right inguinal area which is derived from gastric cancer.CASE SUMMARY A 68-year-old male initially diagnosed with an inguinal hernia presented with a 2 cm mass in the right inguinal area.Gastrointestinal symptoms led to the discovery of a stomach tumor.Biopsy confirmed gastrointestinal adenocarcinoma.The diagnosis was advanced gastric cancer with peritoneal dissemination,and the inguinal mass was due to direct infiltration.Due to gastrointestinal bleeding,the patient underwent palliative gastrectomy and lymph node dissection.Postoperatively,the patient received hyperthermic intraperitoneal chemotherapy and localized radiation therapy.CONCLUSION This case indicates that a systematic evaluation should be conducted during the initial consultation to explore the potential connection between unrecognized distant masses and the primary tumor.展开更多
Objective To analyze the prevalence of asthma and asthma related symptoms among children aged 0-14 years in three Chinese cities and to obtain a crude estimation of the trend of childhood asthma prevalence in China. M...Objective To analyze the prevalence of asthma and asthma related symptoms among children aged 0-14 years in three Chinese cities and to obtain a crude estimation of the trend of childhood asthma prevalence in China. Methods A cross-sectional, population-based survey of prevalence of asthrna was conducted in children aged from 0 to 14 years in 3 major cities of China （Beijing, Chongqing, and Guangzhou） with different geographic locations. All the subjects were randomly selected by a multi-stage sampling method. Three to five schools and kindergartens in 2 urban districts in each city were randomly selected for the survey, and a validated questionnaire that included the core questions of the International Study of Asthma and Allergies in Childhood, Phase III questionnaire and several additional questions were used. All questionnaires were completed by parents or guardians of the selected children. Children whose parents responded affirmatively to the question＂ Has your child ever been diagnosed as asthma by a doctor＂ were recognized as victims of asthma. Results The prevalence of asthma in Beijing, Chongqing, and Guangzhou was 3.15%, 7.45%, and 2.09%, respectively. These values were significantly higher than those obtained 10 years ago in the national epidemiological survey in 2000 which used the same method of investigation and the same diagnotic criteria （x^2=3.938, P=-0.047; 22=73.506, P≤0.001; x^2=11.956, P=0.001, in each city）. Of the asthmatic children 57.21%, 69.91%, and 60.00% had their first attack before the age of 3 in Beijing, Chongqing, and Guangzhou, respectively. Wheezing was the primary clinical manifestation for all asthmatic children, followed by persistent cough and repeated respiratory infections. Both the prevalence of asthma and asthma-related symptoms were statistically higher in males than in females. Conclusion The prevalence of childhood asthma is statistically higher than that 10 years ago in the three Chinese cities.展开更多
This study investigated the inhibitory effect of grape seed proanthocyanidin extract(GSPE) on selenite-induced cataract formation in rats and the possible mechanism.Eighty 8-day-old Sprague-Dawley rats were divided ra...This study investigated the inhibitory effect of grape seed proanthocyanidin extract(GSPE) on selenite-induced cataract formation in rats and the possible mechanism.Eighty 8-day-old Sprague-Dawley rats were divided randomly into 5 groups:control group,model group,three GSPE groups(low dose,medium dose and high dose).Control group received subcutaneous injection of physiological saline.Model group was given subcutaneous injection of sodium selenite(20 μmol/kg body weight) on the postpartum day 10,and once every other day for consecutive three times thereafter.GSPE treated groups were respectively administered GSPE at doses of 50,100,and 200 mg/kg body weight intragastrically 2 days prior to the selenite injection(that was,on the postpartum day 8),and once daily for fourteen consecutive days thereafter.The opacity of lenses was observed,graded and photographed under the slit lamp microscopy and the maximal diameter of the nuclear cataract plaques was measured.The lenses were analyzed for superoxide dismutase(SOD),catalase(CAT),glutathione peroxidase(GSH-PX),malondialdehyde(MDA),calcium(Ca 2+),nitric oxide(NO) and anti-hydroxyl radical ability(anti-OH).The histomorphology of lenses was observed with HE staining under a light microscope.The levels of calpainⅡ,and iNOS protein and mRNA expression in lenses were detected by using immunohistochemistry and real-time quantitative RT-PCR.The results showed subcutaneous injection of sodium selenite led to severe nuclear cataract in model group,and the achievement ratio of model group was 100%.As compared with model group,the degree of lenses opacity and the maximal diameter of nuclear cataract plaques were significantly reduced in GSPE-treated groups.Moreover,we observed selenite treatment caused a significant decrease in the activities of antioxidative enzymes(SOD,CAT,GSH-PX) and anti-OH ability,accompanied by a significant increase in the levels of MDA,NO,Ca 2+ as well as iNOS,and calpainⅡ protein and mRNA expression.Administration of GSPE could dose-dependently preserve the activities of these antioxidative enzymes and anti-OH ability,accompanied by a significant reduction in the levels of MDA,NO,Ca 2+ as well as iNOS,and calpainⅡ protein and mRNA expression.These results suggested that GSPE markedly prevented selenite-induced cataract formation probably by suppressing the generation of lipid peroxidation and free radicals as well as the activation of iNOS,and calpainⅡ in the lenses.展开更多
Background:The chronic unpredictable mild stress(CUMS)model has long been considered the best model for exploring the pathophysiological mechanisms underlying depression.However,there are no widely recognised standard...Background:The chronic unpredictable mild stress(CUMS)model has long been considered the best model for exploring the pathophysiological mechanisms underlying depression.However,there are no widely recognised standards for strategies for modeling and for behavioral testing.The present study aimed to optimize the protocols for food deprivation and the sucrose preference test(SPT)for the CUMS model.Methods:We first evaluated the effects of different long periods of food deprivation on the body weight of Sprague Dawley(SD)rats by testing food deprivation for 24 hours(8:00-8:00^+),food deprivation for 12 hours during the daytime(8:00-20:00)and food deprivation for 12 hours at night(20:00-8:00^+).Next,we established a SD rat CUMS model with 15 different stimulations,and used body weight measurement,SPT,forced swim test(FST),open field test(OFT)and Morris water maze(MWM)test to verify the success of the modeling.In the SPT,consumption of sucrose and pure water within 1 and 12 hours was measured.Results:Twelve hours of food deprivation during the daytime(8:00-20:00)had no effect on body weight,while 12 hours of food deprivation at night(20:00-8:00^+)and 24 hours of food deprivation(8:00-8:00^+)significantly reduced the mean body weight of the SD rats.When SPT was used to verify the successful establishment of the CUMS rat model,sucrose consumption measured within 12 hours was less variable than that measured within 1 hour.Conclusions:Twelve hours of food deprivation in the daytime(8:00-20:00)may be considered a mild stimulus for the establishment of a CUMS rat model.Measuring sucrose consumption over 12 hours is recommended for SPT.展开更多
This study aimed to evaluate the satisfaction of village doctors to essential medicines list (EML) and accessibility of essential medicines (EMs) distribution to improve the implementation of EML in village clinics.A ...This study aimed to evaluate the satisfaction of village doctors to essential medicines list (EML) and accessibility of essential medicines (EMs) distribution to improve the implementation of EML in village clinics.A total of 422 village doctors from five counties in three provinces of China were surveyed by questionnaires.Logistic regression analysis was conducted to identify the main factors associated with village doctors' evaluation of EML.The results showed that village doctors had a negative evaluation in satisfaction level of EML to village-based care and accessibility of EM distribution.The government should adjust EML regularly based on the actual health status of local villagers in China and focus on adding appropriate drugs that meet the needs of villagers with chronic disease.The local government should also attach importance to the distribution of EMs and maintain their supply in village clinics.展开更多
BACKGROUND： Central nervous system axons regenerate poorly following neonatal hypoxic-ischemic brain damage （HIBD）, partly due to inhibitors, such as Nogo-A. Very few studies have addressed the regulation of Nogo-A...BACKGROUND： Central nervous system axons regenerate poorly following neonatal hypoxic-ischemic brain damage （HIBD）, partly due to inhibitors, such as Nogo-A. Very few studies have addressed the regulation of Nogo-A in neonatal rats following HIBD. However, numerous studies have shown that ephedrine accelerates neuronal remodeling and promotes recovery of neural function in neonatal rats following HIBD. OBJECTIVE： To investigate the effects of ephedrine on expression of Nogo-A and synaptophysin in brain tissues of neonatal rats following HIBD. DESIGN, TIME AND SETTING： A completely randomized, controlled study was performed at the Immunohistochemistry Laboratory of the Research Institute of Pediatrics, Children＇s Hospital of Chongqing Medical University from August 2008 to March 2009. MATERIALS： Ephedrine hydrochloride （Chifeng Pharmaceutical Group, China）, rabbit anti-Nogo-A polyclonal antibody （Abcam, UK）, and rabbit anti-synaptophysin polyclonal antibody （Lab Vision, USA） were used in this study. METHODS： A total of 96 healthy, neonatal, Sprague Dawley rats were randomly assigned to three groups （n = 32）： sham operation, HIBD, and ephedrine. The HIBD model was established by permanent occlusion of the left common carotid artery, followed by 2 hours of hypoxia （8% oxygen and 92% nitrogen）. In the sham operation group, the left common carotid artery was exposed, but was not ligated or subjected to hypoxia. Rats in the ephedrine group were intraperitoneally injected with ephedrine immediately following HIBD, with 1.5 mg/kg each time. Rats in the sham operation and HIBD groups were injected with an equal volume of saline. All neonatal rats were treated once daily for 7 days. MAIN OUTCOME MEASURES： Histopathological damage to the cortex and hippocampus was determined by hematoxylin-eosin staining. Expression of Nogo-A and synaptophysin was detected using immunohistochemical staining. RESULTS： Neuronal degeneration and edema were observed in the hypoxJc-Jschemic cortex and hippocampus by hematoxylin-eosin staining. Compared with the sham operation group, the levels of Nogo-A significantly increased in the HIBD group at various time points （P 〈 0.01）. Nogo-A expression was significantly reduced in the ephedrine group compared with the HIBD group （P 〈 0.01）. Synaptophysin expression was significantly decreased in the hypoxic-ischemJc cortex, compared with the sham operation group （P 〈 0.01）. Synaptophysin levels were significantly increased in the ephedrine group, compared with the HIBD group （P 〈 0.01）. CONCLUSION： Altered Nogo-A expression was associated with inversely altered synaptophysin expression. The use of ephedrine normalized expression levels of Nogo-A and synaptophysin following HIBD.展开更多
Objective The hypersensitivity of the kidney makes it susceptible to hypoxia injury.The involvement of neutrophil extracellular traps(NETs)in renal injury resulting from hypobaric hypoxia(HH)has not been reported.In t...Objective The hypersensitivity of the kidney makes it susceptible to hypoxia injury.The involvement of neutrophil extracellular traps(NETs)in renal injury resulting from hypobaric hypoxia(HH)has not been reported.In this study,we aimed to investigate the expression of NETs in renal injury induced by HH and the possible underlying mechanism.Methods A total of 24 SD male rats were divided into three groups(n=8 each):normal control group,hypoxia group and hypoxia+pyrrolidine dithiocarbamate(PDTC)group.Rats in hypoxia group and hypoxia+PDTC group were placed in animal chambers with HH which was caused by simulating the altitude at 7000 meters(oxygen partial pressure about 6.9 kPa)for 7 days.PDTC was administered at a dose of 100 mg/kg intraperitoneally once daily for 7 days.Pathological changes of the rat renal tissues were observed under a light microscope;the levels of serum creatinine(SCr),blood urea nitrogen(BUN),cell-free DNA(cf-DNA)and reactive oxygen species(ROS)were measured;the expression levels of myeloperoxidase(MPO),citrullinated histone H3(cit-H3),B-cell lymphoma 2(Bcl-2),Bax,nuclear factor kappa B(NF-κB)p65 and phospho-NF-κB p65(p-NF-κB p65)in rat renal tissues were detected by qRT-qPCR and Western blotting;the localization of NF-κB p65 expression in rat renal tissues was observed by immunofluorescence staining and the expression changes of NETs in rat renal tissues were detected by multiplex fluorescence immunohistochemical staining.Results After hypoxia,the expression of NF-κB protein in renal tissues was significantly increased,the levels of SCr,BUN,cf-DNA and ROS in serum were significantly increased,the formation of NETs in renal tissues was significantly increased,and a large number of tubular dilatation and lymphocyte infiltration were observed in renal tissues.When PDTC was used to inhibit NF-κB activation,NETs formation in renal tissue was significantly decreased,the expression level of Bcl-2 in renal tissues was significantly increased,the expression level of Bax was significantly decreased,and renal injury was significantly alleviated.Conclusion HH induces the formation of NETs through the NF-κB signaling pathway,and it promotes apoptosis and aggravates renal injury by decreasing Bcl-2 and increasing Bax expression.展开更多
Objective： To develop a new curriculum for a master＇s degree in nursing and provide a reference for nursing education in China. Methods： After a comprehensive literature review and item consolidation, an expert pan...Objective： To develop a new curriculum for a master＇s degree in nursing and provide a reference for nursing education in China. Methods： After a comprehensive literature review and item consolidation, an expert panel developed the initial version of the master＇s degree program objective and curriculum. A three-round Delphi study was subsequently conducted to revise and validate the curriculum. Results： Twenty-six experts participated in the evaluation and validation process. The authority coef- ficient was 0.88, and the Kendall coordination coefficient was statistically significant （X2 test, P 〈 0.01）. The final training objective contained 9 items, covering knowledge, skills and humanistic quality. The final established curriculum contained 22 courses, including 5 public compulsory courses, 5 specialized basic compulsory courses and 12 elective courses for professional development. Conclusions： The present study provided an operational curriculum for a master＇s degree in nursing in China.展开更多
Ephedrine has a protective effect against cerebral ischemia,but its side effects limit its clinical application.Results from a previous study showed that 1.5 mg/kg per day ephedrine can promote motion recovery in rats...Ephedrine has a protective effect against cerebral ischemia,but its side effects limit its clinical application.Results from a previous study showed that 1.5 mg/kg per day ephedrine can promote motion recovery in rats following cerebral ischemia/reperfusion without significant side effects.In the present study,ephedrine at doses of 3.0,2.5 and 2.0 mg/kg was used to treat rats with cerebral ischemia/reperfusion and the effects of ephedrine on the heart,liver,kidney and cerebrum were observed.Results showed that the blood pressure of rats with cerebral ischemia/reperfusion injury following ephedrine treatment was lower than in rats that recovered naturally from cerebral ischemia/reperfusion,but the pressure decreased with increasing doses of ephedrine.In addition,serum aspartate transaminase,alkaline phosphatase and creatinine concentration in rats with cerebral ischemia/reperfusion injury following ephedrine treatment were greater than in rats that recovered naturally from cerebral ischemia/reperfusion.The concentrations of these enzymes were decreased with increasing doses of ephedrine.Ephedrine-treated rats displayed hyperemia,degeneration and edema in the cerebrum,liver,heart and kidney.Results demonstrated that ephedrine exhibited side effects on the cerebrum,heart,liver and kidney in rats following cerebral ischemia/reperfusion in a dose-dependent manner.展开更多
Objective:Cardiopulmonary resuscitation(CPR)after cardiac arrest(CA)is one of the main causes of capillary leakage syndrome(CLS).This study aimed to establish a stable CLS model following the CA and cardiopulmonary re...Objective:Cardiopulmonary resuscitation(CPR)after cardiac arrest(CA)is one of the main causes of capillary leakage syndrome(CLS).This study aimed to establish a stable CLS model following the CA and cardiopulmonary resuscitation(CA-CPR)model in Sprague-Dawley(SD)rats.Methods:We conducted a prospective,randomized,animal model study.All adult male SD rats were randomly divided into a normal group(group N),a sham operation group(group S),and a cardiopulmonary resuscitation group(group T).The SD rats of the three groups were all inserted with 24-G needles through their left femoral arteries and right femoral veins.In group S and group T,the endotracheal tube was intubated.In group T,CA induced by asphyxia(AACA)was caused by vecuronium bromide with the endotracheal tube obstructed for 8 min,and the rats were resuscitated with manual chest compression and mechanical ventilation.Preresuscitation and postresuscitation measurements,including basic vital signs(BVS),blood gas analysis(BG),routine complete blood count(CBC),wet-to-dry ratio of tissues(W/D),and the HE staining results after 6 h were evaluated.Results:In group T,the success rate of the CA-CPR model was 60%(18/30),and CLS occurred in 26.6%(8/30)of the rats.There were no significant differences in the baseline characteristics,including BVS,BG,and CBC,among the three groups(P>0.05).Compared with pre-asphyxia,there were significant differences in BVS,CBC,and BG,including temperature,oxygen saturation(SpO_(2)),mean arterial pressure(MAP),central venous pressure(CVP),white blood cell count(WBC),hemoglobin,hematocrit,pH,pCO_(2),pO_(2),SO_(2),lactate(Lac),base excess(BE),and Na+(P<0.05)after the return of spontaneous circulation(ROSC)in group T.At 6 h after ROSC in group T and at 6 h after surgery in groups N and S,there were significant differences in temperature,heart rate(HR),respiratory rate(RR),SpO_(2),MAP,CVP,WBC,pH,pCO_(2),Na+,and K+among the three groups(P<0.05).Compared with the other two groups,the rats in group T showed a significantly increased W/D weight ratio(P<0.05).The HE-stained sections showed consistent severe lesions in the lung,small intestine,and brain tissues of the rats at 6 h after ROSC following AACA.Conclusion:The CA-CPR model in SD rats induced by asphyxia could reproduce CLS with good stability and reproducibility.展开更多
Labial adhesions (LA)(also called labial agglutination) are defined as partial or complete agglutination of labia minora. The condition commonly occurs in girls during childhood with an estimated prevalence of 0.6%–5...Labial adhesions (LA)(also called labial agglutination) are defined as partial or complete agglutination of labia minora. The condition commonly occurs in girls during childhood with an estimated prevalence of 0.6%–5%and a peak incidence in the age-group of 13–24 months[1]. Over half of all patients present with symptoms related to urinary outlet obstruction[2].展开更多
Objective: Evaluating the effectiveness of steroids and autologous bone marrow injection in the treatment of children with simple bone cysts. Methods: The literatures of Pubmed, CBM, CNKI, Wanfang Data, and VIP Databa...Objective: Evaluating the effectiveness of steroids and autologous bone marrow injection in the treatment of children with simple bone cysts. Methods: The literatures of Pubmed, CBM, CNKI, Wanfang Data, and VIP Database were compared in the database of corticosteroids injection and autologous bone marrow injection for the treatment of children with simple bone cysts. The literature was retrieved until June 2018. Read the abstract or full text of the literature carefully, track the references, evaluate the quality of the included literature and extract the data, and use Rev Man 5.3 for Meta-analysis. Results: There were five studies were included, a total of 246 children with simple bone cysts were enrolled in the study. Of these, 132 received percutaneous steroid injection and 114 received percutaneous autologous bone marrow injection. Comparison of percutaneous steroids injection with autologous bone marrow injection, there was no significant difference in overall cure rate (OR = 1.29, 95%, CI = 0.57~2.88, P = 0.54), incidence of pathological fractures after surgery (OR = 1.04, 95%, CI = 0.47~2.30, P = 0.92), and recurrence rate (OR = 3.24, 95%, CI = 0.96~10.96, P =0.06). Conclusion: There was no significant difference in the efficacy of percutaneous steroid injection and autologous bone marrow injection in the treatment of children simple bone cyst.展开更多
Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveil...Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveillance.Methods All participants were evaluated by the CNBS-R2016 and Gesell Developmental Schedules(GDS).Spearman’s correlation coefficients and Kappa values were obtained.Taking GDS as a reference assessment,the performance of the CNBS-R2016 for detecting the developmental delays of children with ASD was analyzed with receiver operating characteristic(ROC)curves.The efficacy of the CNBS-R2016 to screen for ASD was explored by comparing Communication Warning Behavior with Autism Diagnostic Observation Schedule,Second Edition(ADOS-2).Results In total,150 children aged 12–42 months with ASD were enrolled.The developmental quotients of the CNBS-R2016 were correlated with those of the GDS(r=0.62–0.94).The CNBS-R2016 and GDS had good diagnostic agreement for developmental delays(Kappa=0.73–0.89),except for Fine Motor.There was a significant difference between the proportions of Fine Motor,delays detected by the CNBS-R2016 and GDS(86.0%vs.77.3%).With GDS as a standard,the areas under the ROC curves of the CNBS-R2016 were above 0.95 for all the domains except Fine Motor,which was 0.70.In addition,the positive rate of ASD was 100.0%and 93.5%when the cut-off points of 7 and 12 in the Communication Warning Behavior subscale were used,respectively.Conclusion The CNBS-R2016 performed well in developmental assessment and screening for children with ASD,especially by Communication Warning Behaviors subscale.Therefore,the CNBS-R2016 is worthy of clinical application in children with ASD in China.展开更多
Objective:To compare the effects of the use and non-use of a disinfectant on the outcomes of separation of the labia minora in infants.Methods:The patients were randomly divided into an experimental group with 24 case...Objective:To compare the effects of the use and non-use of a disinfectant on the outcomes of separation of the labia minora in infants.Methods:The patients were randomly divided into an experimental group with 24 cases and a control group with 25 cases.In the control group,1%iodophor was used to clean and disinfect the large and small labia and the surrounding skin,while normal saline was used in the experimental group.Other procedures such as the surgery and nursing method were the same in both groups.Results:There were no symptoms of urinary tract infection such as redness of the vulva,swelling,pain,and abnormal urination in the test group and control group after three days of follow-up,and no recurrence was seen at one month of follow-up.There was no statistically significant difference between the two groups(P>0.05).Conclusion:Use or non-use of a disinfectant to clean the urethral opening before separation of the labia minora has no significant effect on the outcomes,and does not cause postoperative urinary tract infection symptoms.Moreover,non-use of a disinfectant can prevent local irritation and reduce the economic burden on the patients.展开更多
Aging is an independent risk factor for cardiovascular diseases.Cardiac diastolic dysfunction(CDD),ultimately leading to heart failure with preserved ejection fraction(HFpEF),is prevalent among older individuals.Altho...Aging is an independent risk factor for cardiovascular diseases.Cardiac diastolic dysfunction(CDD),ultimately leading to heart failure with preserved ejection fraction(HFpEF),is prevalent among older individuals.Although therapeutics have made great prog-ress,preventive strategies remain unmet medical needs.Green tea catechins have been shown to be effective in improving aging-related cardiovascular and cerebral disorders in animal models and patients.However,little attention has been paid to whether long-term administration of epigallocatechin gallate(EGCG),the major bioactive ingredient of green tea catechins,could prevent the onset and progression of CDD.In this study,12-month-old female mice were orally administered 50,100 and 200 mg EGCG mixed with drinking water for 6 months.Aged mice(18 months old)exhibited the major features of HFpEF,including CDD with pEF,cardiac fibrosis,increased cardiomyocyte apoptosis,and mitochondrial damages,as well as elevated A/B-type natriuretic peptide.Cardiac troponin I(cTnI)expression was also reduced.Long-term administration of 100 or 200 mg EGCG prevented aging-related CDD and exercise capacity decline,along with alleviating myocardial apoptosis and mitochondria damage.The transcrip-tion and protein expression of cTnI were increased,which might be achieved by inhibiting the expression and activity of histone deacetylase 1(HDAC1),and reducing its binding level near cTnI's promoter,thereby elevating acetylated histone 3(AcH3)and acetylated lysine 9 on his-tone H3(AcH3K9)in the aged mice.We provide a novel insight that long-term administration of EGCG is a potentially effective strategy in preventing aging-related CDD and cTnI expression decline.展开更多
基金supported by grants from the National Natural Science Foundation of China(Grant No.82071395)the Natural Science Foundation of Chongqing(Grant Nos.cstc2021ycjh-bgzxm0186,cstc2020jcyj-zdxmX0004,and cstc2021jcyj-bsh0023)the CQMU Program for Youth Innovation in Future Medicine(Grant No.W0044).
文摘The receptor for activated C kinase 1(RACK1)is a protein that plays a crucial role in various signaling pathways and is involved in the pathogenesis of Alzheimer's disease(AD),a prevalent neurodegenerative disease.RACK1 is highly expressed in neuronal cells of the central nervous system and regulates the pathogenesis of AD.Specifically,RACK1 is involved in regulation of the amyloid-β precursor protein processing through α-or β-secretase by binding to different protein kinase C isoforms.Additionally,RACK1 promotes synaptogenesis and synaptic plasticity by inhibiting N-methyl-D-aspartate receptors and activating gamma-aminobutyric acid A receptors,thereby preventing neuronal excitotoxicity.RACK1 also assembles inflammasomes that are involved in various neuroinflammatory pathways,such as nuclear factor-kappa B,tumor necrosis factor-alpha,and NOD-like receptor family pyrin domain-containing 3 pathways.The potential to design therapeutics that block amyloid-β accumulation and inflammation or precisely regulate synaptic plasticity represents an attractive therapeutic strategy,in which RACK1 is a potential target.In this review,we summarize the contribution of RACK1 to the pathogenesis of AD and its potential as a therapeutic target.
基金supported by the National Natural Science Foundation of China(32371030,82071395)Natural Science Foundation of Chongqing(CSTB2024NSCQ-LZX0008)+1 种基金Science and Technology Research Program of Chongqing Municipal Education Commission(KJQN202300424)CQMU Program for Youth Innovation in Future Medicine(W0044)。
文摘Maternal sleep deprivation(MSD)has emerged as a significant public health concern,yet its effects on offspring metabolism remain poorly understood.This study investigated the metabolomic implications of MSD on offspring cognitive development,with a particular focus on alterations in glutamate metabolism.Pregnant rats were subjected to sleep deprivation during late gestation.Plasma and brain samples from their offspring were collected at different postnatal days(P1,P7,P14,and P56)and analyzed using untargeted metabolomics with liquid chromatography-mass spectrometry.Metabolomic analysis revealed significant differences in various amino acids,including L-glutamate,L-phenylalanine,L-tyrosine,and L-tryptophan,which are crucial for cognitive function.Subsequent differential analysis and partial least squares discriminant analysis(sPLS-DA)demonstrated a gradual reduction in these metabolic differences in the brain as the offspring underwent growth and development.KEGG pathway analysis revealed differential regulation of several pathways,including alanine,aspartate,and glutamate metabolism,glutathione metabolism,arginine biosynthesis,aminoacyl-tRNA biosynthesis,histidine metabolism,and taurine and hypotaurine metabolism,at different developmental stages.Mantel and Spearman analyses indicated that the observed changes in metabolites in MSD progeny may be related to various gut microbes,Ruminococcus_1,Ruminococcaceae_UCG-005,and Eubacterium_coprostanoligenes_group.Biochemical assays further demonstrated developmental changes in the L-glutamate metabolic pathway.Collectively,these findings suggest that MSD not only affects maternal wellbeing but also has enduring metabolic consequences for offspring,particularly impacting pathways linked to cognitive function.This highlights the importance of addressing maternal sleep health to mitigate potential long-term consequences for offspring.
文摘AIM:To explore the relationship between retinal exudative changes in neonates and perinatal toxoplasmosis,others,rubella,cytomegalovirus,and herpes simplex virus(TORCH)infections,as well as the characteristics of TORCH infection in neonates with retinal exudative changes.METHODS:Retrospective study.A total of 612 neonates with retinal exudative changes detected during ophthalmic screening in our hospital from May 2019 to March 2023 were selected.TORCH tests were performed on these neonates,and the results were subjected to statistical analysis to determine the infection characteristics.The neonates with retinal exudative changes were grouped by sex and age,the characteristics of TORCH infection were analyzed,and the positive rates were compared.RESULTS:Among the 612 neonates with retinal exudative changes,the highest positive rate was observed for cytomegalovirus(CMV-IgG)(96.7%),followed by rubella virus(RV-IgG)(73.9%).Mixed infections with two or three viruses were also observed,with the highest positive rate for mixed infection of RV-IgG and CMV-IgG reaching 71.2%.There was no statistically significant difference in TORCH infection among neonates of different sex(P>0.05).However,there were statistically significant differences in RV-IgG and CMV-IgM infections with retinal exudative changes among neonates of different age groups(P<0.05).CONCLUSION:Perinatal TORCH infection may be an important factor causing retinal exudative changes in neonates.The differences in various infections are not related to sex but are related to different age groups.
文摘Objective To observe the ultrasonic manifestations and age distribution of internal abdominal hernia in children.Methods Data of 53 children with internal abdominal hernia confirmed by operation were retrospectively analyzed.The ultrasonic findings were observed,and the age distribution of children was analyzed.Results Among 53 cases,"cross sign"was observed in 22 cases(22/53,41.51%),and"hernia ring beak sign"was detected in 26 cases(26/53,49.06%)by preoperative ultrasound,according to which 21 cases were diagnosed as internal abdominal hernia,with the accuracy of 39.62%(21/53).Meanwhile,manifestations of intestinal obstruction were noticed in 48 cases(48/53,90.57%),and intestinal necrosis was considered in 22 cases(22/53,41.51%).Four cases were misdiagnosed as intestinal perforation,appendicitis,intestinal atresia and volvulus,each in 1 case.The onset age of postoperative adhesive band internal hernia was larger than that of mesenteric hiatal hernia(P<0.05),while no significant difference of onset age was found among other types of internal abdominal hernias(all P>0.05).Intestinal ischemic necrosis was found in 25 cases,while the incidence of intestinal necrosis in children aged≤1 year,>1 and≤3 years,>3 and≤7 years and those>7 years was 66.67%(12/18),33.33%(4/12),36.36%(4/11)and 41.67%(5/12),respectively.Conclusion The characteristic ultrasonic findings of internal abdominal hernia in children included"cross sign"and"hernia ring beak sign".Internal abdominal hernia in children under 1 year had high risk of intestinal necrosis.
文摘Necrotizing enterocolitis(NEC)is a leading cause of death from gastrointestinal disease in premature and low-birth-weight infants.Early detection of severely ischemic or necrotic bowel before perforation is rather difficult.New techniques including multi-omics contribute to better understanding its underlying mechanisms and discovering differe categories of biomarkers.Combination of clinical metrics such as seven components of metabolic derangement(CMD)may provide accurate assessment of its severity.Implementation of quality improvement initiatives including breast milk feeding actually lowers its incidence.
文摘BACKGROUND Gastric cancer is the fifth most common cancer and the fourth leading cause of death worldwide.Most cases of newly diagnosed gastric cancer involve not only locally advanced tumor growth and regional lymph node metastases but also distant metastases.We report a rare case finding of a mass in the right inguinal area which is derived from gastric cancer.CASE SUMMARY A 68-year-old male initially diagnosed with an inguinal hernia presented with a 2 cm mass in the right inguinal area.Gastrointestinal symptoms led to the discovery of a stomach tumor.Biopsy confirmed gastrointestinal adenocarcinoma.The diagnosis was advanced gastric cancer with peritoneal dissemination,and the inguinal mass was due to direct infiltration.Due to gastrointestinal bleeding,the patient underwent palliative gastrectomy and lymph node dissection.Postoperatively,the patient received hyperthermic intraperitoneal chemotherapy and localized radiation therapy.CONCLUSION This case indicates that a systematic evaluation should be conducted during the initial consultation to explore the potential connection between unrecognized distant masses and the primary tumor.
基金supported by the National Science & Technology Pillar Program under the Eleventh Five-Year Plan of China(No.2007BAI24B05)
文摘Objective To analyze the prevalence of asthma and asthma related symptoms among children aged 0-14 years in three Chinese cities and to obtain a crude estimation of the trend of childhood asthma prevalence in China. Methods A cross-sectional, population-based survey of prevalence of asthrna was conducted in children aged from 0 to 14 years in 3 major cities of China （Beijing, Chongqing, and Guangzhou） with different geographic locations. All the subjects were randomly selected by a multi-stage sampling method. Three to five schools and kindergartens in 2 urban districts in each city were randomly selected for the survey, and a validated questionnaire that included the core questions of the International Study of Asthma and Allergies in Childhood, Phase III questionnaire and several additional questions were used. All questionnaires were completed by parents or guardians of the selected children. Children whose parents responded affirmatively to the question＂ Has your child ever been diagnosed as asthma by a doctor＂ were recognized as victims of asthma. Results The prevalence of asthma in Beijing, Chongqing, and Guangzhou was 3.15%, 7.45%, and 2.09%, respectively. These values were significantly higher than those obtained 10 years ago in the national epidemiological survey in 2000 which used the same method of investigation and the same diagnotic criteria （x^2=3.938, P=-0.047; 22=73.506, P≤0.001; x^2=11.956, P=0.001, in each city）. Of the asthmatic children 57.21%, 69.91%, and 60.00% had their first attack before the age of 3 in Beijing, Chongqing, and Guangzhou, respectively. Wheezing was the primary clinical manifestation for all asthmatic children, followed by persistent cough and repeated respiratory infections. Both the prevalence of asthma and asthma-related symptoms were statistically higher in males than in females. Conclusion The prevalence of childhood asthma is statistically higher than that 10 years ago in the three Chinese cities.
文摘This study investigated the inhibitory effect of grape seed proanthocyanidin extract(GSPE) on selenite-induced cataract formation in rats and the possible mechanism.Eighty 8-day-old Sprague-Dawley rats were divided randomly into 5 groups:control group,model group,three GSPE groups(low dose,medium dose and high dose).Control group received subcutaneous injection of physiological saline.Model group was given subcutaneous injection of sodium selenite(20 μmol/kg body weight) on the postpartum day 10,and once every other day for consecutive three times thereafter.GSPE treated groups were respectively administered GSPE at doses of 50,100,and 200 mg/kg body weight intragastrically 2 days prior to the selenite injection(that was,on the postpartum day 8),and once daily for fourteen consecutive days thereafter.The opacity of lenses was observed,graded and photographed under the slit lamp microscopy and the maximal diameter of the nuclear cataract plaques was measured.The lenses were analyzed for superoxide dismutase(SOD),catalase(CAT),glutathione peroxidase(GSH-PX),malondialdehyde(MDA),calcium(Ca 2+),nitric oxide(NO) and anti-hydroxyl radical ability(anti-OH).The histomorphology of lenses was observed with HE staining under a light microscope.The levels of calpainⅡ,and iNOS protein and mRNA expression in lenses were detected by using immunohistochemistry and real-time quantitative RT-PCR.The results showed subcutaneous injection of sodium selenite led to severe nuclear cataract in model group,and the achievement ratio of model group was 100%.As compared with model group,the degree of lenses opacity and the maximal diameter of nuclear cataract plaques were significantly reduced in GSPE-treated groups.Moreover,we observed selenite treatment caused a significant decrease in the activities of antioxidative enzymes(SOD,CAT,GSH-PX) and anti-OH ability,accompanied by a significant increase in the levels of MDA,NO,Ca 2+ as well as iNOS,and calpainⅡ protein and mRNA expression.Administration of GSPE could dose-dependently preserve the activities of these antioxidative enzymes and anti-OH ability,accompanied by a significant reduction in the levels of MDA,NO,Ca 2+ as well as iNOS,and calpainⅡ protein and mRNA expression.These results suggested that GSPE markedly prevented selenite-induced cataract formation probably by suppressing the generation of lipid peroxidation and free radicals as well as the activation of iNOS,and calpainⅡ in the lenses.
基金This work was supported by Social livelihood projects of Chongqing Science and Technology Bureau(cstc2017shms-zdyfX0048,csts2017shmsA00007).
文摘Background:The chronic unpredictable mild stress(CUMS)model has long been considered the best model for exploring the pathophysiological mechanisms underlying depression.However,there are no widely recognised standards for strategies for modeling and for behavioral testing.The present study aimed to optimize the protocols for food deprivation and the sucrose preference test(SPT)for the CUMS model.Methods:We first evaluated the effects of different long periods of food deprivation on the body weight of Sprague Dawley(SD)rats by testing food deprivation for 24 hours(8:00-8:00^+),food deprivation for 12 hours during the daytime(8:00-20:00)and food deprivation for 12 hours at night(20:00-8:00^+).Next,we established a SD rat CUMS model with 15 different stimulations,and used body weight measurement,SPT,forced swim test(FST),open field test(OFT)and Morris water maze(MWM)test to verify the success of the modeling.In the SPT,consumption of sucrose and pure water within 1 and 12 hours was measured.Results:Twelve hours of food deprivation during the daytime(8:00-20:00)had no effect on body weight,while 12 hours of food deprivation at night(20:00-8:00^+)and 24 hours of food deprivation(8:00-8:00^+)significantly reduced the mean body weight of the SD rats.When SPT was used to verify the successful establishment of the CUMS rat model,sucrose consumption measured within 12 hours was less variable than that measured within 1 hour.Conclusions:Twelve hours of food deprivation in the daytime(8:00-20:00)may be considered a mild stimulus for the establishment of a CUMS rat model.Measuring sucrose consumption over 12 hours is recommended for SPT.
文摘This study aimed to evaluate the satisfaction of village doctors to essential medicines list (EML) and accessibility of essential medicines (EMs) distribution to improve the implementation of EML in village clinics.A total of 422 village doctors from five counties in three provinces of China were surveyed by questionnaires.Logistic regression analysis was conducted to identify the main factors associated with village doctors' evaluation of EML.The results showed that village doctors had a negative evaluation in satisfaction level of EML to village-based care and accessibility of EM distribution.The government should adjust EML regularly based on the actual health status of local villagers in China and focus on adding appropriate drugs that meet the needs of villagers with chronic disease.The local government should also attach importance to the distribution of EMs and maintain their supply in village clinics.
基金the Scientific Research Program of Health Bureau of Chongqing City, No. [2007]1-07-2-153
文摘BACKGROUND： Central nervous system axons regenerate poorly following neonatal hypoxic-ischemic brain damage （HIBD）, partly due to inhibitors, such as Nogo-A. Very few studies have addressed the regulation of Nogo-A in neonatal rats following HIBD. However, numerous studies have shown that ephedrine accelerates neuronal remodeling and promotes recovery of neural function in neonatal rats following HIBD. OBJECTIVE： To investigate the effects of ephedrine on expression of Nogo-A and synaptophysin in brain tissues of neonatal rats following HIBD. DESIGN, TIME AND SETTING： A completely randomized, controlled study was performed at the Immunohistochemistry Laboratory of the Research Institute of Pediatrics, Children＇s Hospital of Chongqing Medical University from August 2008 to March 2009. MATERIALS： Ephedrine hydrochloride （Chifeng Pharmaceutical Group, China）, rabbit anti-Nogo-A polyclonal antibody （Abcam, UK）, and rabbit anti-synaptophysin polyclonal antibody （Lab Vision, USA） were used in this study. METHODS： A total of 96 healthy, neonatal, Sprague Dawley rats were randomly assigned to three groups （n = 32）： sham operation, HIBD, and ephedrine. The HIBD model was established by permanent occlusion of the left common carotid artery, followed by 2 hours of hypoxia （8% oxygen and 92% nitrogen）. In the sham operation group, the left common carotid artery was exposed, but was not ligated or subjected to hypoxia. Rats in the ephedrine group were intraperitoneally injected with ephedrine immediately following HIBD, with 1.5 mg/kg each time. Rats in the sham operation and HIBD groups were injected with an equal volume of saline. All neonatal rats were treated once daily for 7 days. MAIN OUTCOME MEASURES： Histopathological damage to the cortex and hippocampus was determined by hematoxylin-eosin staining. Expression of Nogo-A and synaptophysin was detected using immunohistochemical staining. RESULTS： Neuronal degeneration and edema were observed in the hypoxJc-Jschemic cortex and hippocampus by hematoxylin-eosin staining. Compared with the sham operation group, the levels of Nogo-A significantly increased in the HIBD group at various time points （P 〈 0.01）. Nogo-A expression was significantly reduced in the ephedrine group compared with the HIBD group （P 〈 0.01）. Synaptophysin expression was significantly decreased in the hypoxic-ischemJc cortex, compared with the sham operation group （P 〈 0.01）. Synaptophysin levels were significantly increased in the ephedrine group, compared with the HIBD group （P 〈 0.01）. CONCLUSION： Altered Nogo-A expression was associated with inversely altered synaptophysin expression. The use of ephedrine normalized expression levels of Nogo-A and synaptophysin following HIBD.
基金This work was supported by grants from Guangxi Medical High-level Key Talents/139/(No.G201901010)Natural Science Foundation of Guangxi Province(No.GXNSFDA198008).
文摘Objective The hypersensitivity of the kidney makes it susceptible to hypoxia injury.The involvement of neutrophil extracellular traps(NETs)in renal injury resulting from hypobaric hypoxia(HH)has not been reported.In this study,we aimed to investigate the expression of NETs in renal injury induced by HH and the possible underlying mechanism.Methods A total of 24 SD male rats were divided into three groups(n=8 each):normal control group,hypoxia group and hypoxia+pyrrolidine dithiocarbamate(PDTC)group.Rats in hypoxia group and hypoxia+PDTC group were placed in animal chambers with HH which was caused by simulating the altitude at 7000 meters(oxygen partial pressure about 6.9 kPa)for 7 days.PDTC was administered at a dose of 100 mg/kg intraperitoneally once daily for 7 days.Pathological changes of the rat renal tissues were observed under a light microscope;the levels of serum creatinine(SCr),blood urea nitrogen(BUN),cell-free DNA(cf-DNA)and reactive oxygen species(ROS)were measured;the expression levels of myeloperoxidase(MPO),citrullinated histone H3(cit-H3),B-cell lymphoma 2(Bcl-2),Bax,nuclear factor kappa B(NF-κB)p65 and phospho-NF-κB p65(p-NF-κB p65)in rat renal tissues were detected by qRT-qPCR and Western blotting;the localization of NF-κB p65 expression in rat renal tissues was observed by immunofluorescence staining and the expression changes of NETs in rat renal tissues were detected by multiplex fluorescence immunohistochemical staining.Results After hypoxia,the expression of NF-κB protein in renal tissues was significantly increased,the levels of SCr,BUN,cf-DNA and ROS in serum were significantly increased,the formation of NETs in renal tissues was significantly increased,and a large number of tubular dilatation and lymphocyte infiltration were observed in renal tissues.When PDTC was used to inhibit NF-κB activation,NETs formation in renal tissue was significantly decreased,the expression level of Bcl-2 in renal tissues was significantly increased,the expression level of Bax was significantly decreased,and renal injury was significantly alleviated.Conclusion HH induces the formation of NETs through the NF-κB signaling pathway,and it promotes apoptosis and aggravates renal injury by decreasing Bcl-2 and increasing Bax expression.
基金supported by the Key Project of Graduate Education Reform of Chongqing Commission of Education(No.yjg110226)National Development Funds for Key Clinical Specialties(No.2013-544)
文摘Objective： To develop a new curriculum for a master＇s degree in nursing and provide a reference for nursing education in China. Methods： After a comprehensive literature review and item consolidation, an expert panel developed the initial version of the master＇s degree program objective and curriculum. A three-round Delphi study was subsequently conducted to revise and validate the curriculum. Results： Twenty-six experts participated in the evaluation and validation process. The authority coef- ficient was 0.88, and the Kendall coordination coefficient was statistically significant （X2 test, P 〈 0.01）. The final training objective contained 9 items, covering knowledge, skills and humanistic quality. The final established curriculum contained 22 courses, including 5 public compulsory courses, 5 specialized basic compulsory courses and 12 elective courses for professional development. Conclusions： The present study provided an operational curriculum for a master＇s degree in nursing in China.
文摘Ephedrine has a protective effect against cerebral ischemia,but its side effects limit its clinical application.Results from a previous study showed that 1.5 mg/kg per day ephedrine can promote motion recovery in rats following cerebral ischemia/reperfusion without significant side effects.In the present study,ephedrine at doses of 3.0,2.5 and 2.0 mg/kg was used to treat rats with cerebral ischemia/reperfusion and the effects of ephedrine on the heart,liver,kidney and cerebrum were observed.Results showed that the blood pressure of rats with cerebral ischemia/reperfusion injury following ephedrine treatment was lower than in rats that recovered naturally from cerebral ischemia/reperfusion,but the pressure decreased with increasing doses of ephedrine.In addition,serum aspartate transaminase,alkaline phosphatase and creatinine concentration in rats with cerebral ischemia/reperfusion injury following ephedrine treatment were greater than in rats that recovered naturally from cerebral ischemia/reperfusion.The concentrations of these enzymes were decreased with increasing doses of ephedrine.Ephedrine-treated rats displayed hyperemia,degeneration and edema in the cerebrum,liver,heart and kidney.Results demonstrated that ephedrine exhibited side effects on the cerebrum,heart,liver and kidney in rats following cerebral ischemia/reperfusion in a dose-dependent manner.
文摘Objective:Cardiopulmonary resuscitation(CPR)after cardiac arrest(CA)is one of the main causes of capillary leakage syndrome(CLS).This study aimed to establish a stable CLS model following the CA and cardiopulmonary resuscitation(CA-CPR)model in Sprague-Dawley(SD)rats.Methods:We conducted a prospective,randomized,animal model study.All adult male SD rats were randomly divided into a normal group(group N),a sham operation group(group S),and a cardiopulmonary resuscitation group(group T).The SD rats of the three groups were all inserted with 24-G needles through their left femoral arteries and right femoral veins.In group S and group T,the endotracheal tube was intubated.In group T,CA induced by asphyxia(AACA)was caused by vecuronium bromide with the endotracheal tube obstructed for 8 min,and the rats were resuscitated with manual chest compression and mechanical ventilation.Preresuscitation and postresuscitation measurements,including basic vital signs(BVS),blood gas analysis(BG),routine complete blood count(CBC),wet-to-dry ratio of tissues(W/D),and the HE staining results after 6 h were evaluated.Results:In group T,the success rate of the CA-CPR model was 60%(18/30),and CLS occurred in 26.6%(8/30)of the rats.There were no significant differences in the baseline characteristics,including BVS,BG,and CBC,among the three groups(P>0.05).Compared with pre-asphyxia,there were significant differences in BVS,CBC,and BG,including temperature,oxygen saturation(SpO_(2)),mean arterial pressure(MAP),central venous pressure(CVP),white blood cell count(WBC),hemoglobin,hematocrit,pH,pCO_(2),pO_(2),SO_(2),lactate(Lac),base excess(BE),and Na+(P<0.05)after the return of spontaneous circulation(ROSC)in group T.At 6 h after ROSC in group T and at 6 h after surgery in groups N and S,there were significant differences in temperature,heart rate(HR),respiratory rate(RR),SpO_(2),MAP,CVP,WBC,pH,pCO_(2),Na+,and K+among the three groups(P<0.05).Compared with the other two groups,the rats in group T showed a significantly increased W/D weight ratio(P<0.05).The HE-stained sections showed consistent severe lesions in the lung,small intestine,and brain tissues of the rats at 6 h after ROSC following AACA.Conclusion:The CA-CPR model in SD rats induced by asphyxia could reproduce CLS with good stability and reproducibility.
基金supported by National Natural Science Foundation of China [NO.81873828] in the document search and data analysis
文摘Labial adhesions (LA)(also called labial agglutination) are defined as partial or complete agglutination of labia minora. The condition commonly occurs in girls during childhood with an estimated prevalence of 0.6%–5%and a peak incidence in the age-group of 13–24 months[1]. Over half of all patients present with symptoms related to urinary outlet obstruction[2].
文摘Objective: Evaluating the effectiveness of steroids and autologous bone marrow injection in the treatment of children with simple bone cysts. Methods: The literatures of Pubmed, CBM, CNKI, Wanfang Data, and VIP Database were compared in the database of corticosteroids injection and autologous bone marrow injection for the treatment of children with simple bone cysts. The literature was retrieved until June 2018. Read the abstract or full text of the literature carefully, track the references, evaluate the quality of the included literature and extract the data, and use Rev Man 5.3 for Meta-analysis. Results: There were five studies were included, a total of 246 children with simple bone cysts were enrolled in the study. Of these, 132 received percutaneous steroid injection and 114 received percutaneous autologous bone marrow injection. Comparison of percutaneous steroids injection with autologous bone marrow injection, there was no significant difference in overall cure rate (OR = 1.29, 95%, CI = 0.57~2.88, P = 0.54), incidence of pathological fractures after surgery (OR = 1.04, 95%, CI = 0.47~2.30, P = 0.92), and recurrence rate (OR = 3.24, 95%, CI = 0.96~10.96, P =0.06). Conclusion: There was no significant difference in the efficacy of percutaneous steroid injection and autologous bone marrow injection in the treatment of children simple bone cyst.
基金This study was supported by Emergency Technology Research Project of Huazhong University of Science and Technology(No.2020kfyXGYJ020).
文摘Objective This study aimed to explore the clinical value of Children Neuropsychological and Behavioral Scale-Revision 2016(CNBS-R2016)for Autism Spectrum Disorder(ASD)screening in the presence of developmental surveillance.Methods All participants were evaluated by the CNBS-R2016 and Gesell Developmental Schedules(GDS).Spearman’s correlation coefficients and Kappa values were obtained.Taking GDS as a reference assessment,the performance of the CNBS-R2016 for detecting the developmental delays of children with ASD was analyzed with receiver operating characteristic(ROC)curves.The efficacy of the CNBS-R2016 to screen for ASD was explored by comparing Communication Warning Behavior with Autism Diagnostic Observation Schedule,Second Edition(ADOS-2).Results In total,150 children aged 12–42 months with ASD were enrolled.The developmental quotients of the CNBS-R2016 were correlated with those of the GDS(r=0.62–0.94).The CNBS-R2016 and GDS had good diagnostic agreement for developmental delays(Kappa=0.73–0.89),except for Fine Motor.There was a significant difference between the proportions of Fine Motor,delays detected by the CNBS-R2016 and GDS(86.0%vs.77.3%).With GDS as a standard,the areas under the ROC curves of the CNBS-R2016 were above 0.95 for all the domains except Fine Motor,which was 0.70.In addition,the positive rate of ASD was 100.0%and 93.5%when the cut-off points of 7 and 12 in the Communication Warning Behavior subscale were used,respectively.Conclusion The CNBS-R2016 performed well in developmental assessment and screening for children with ASD,especially by Communication Warning Behaviors subscale.Therefore,the CNBS-R2016 is worthy of clinical application in children with ASD in China.
文摘Objective:To compare the effects of the use and non-use of a disinfectant on the outcomes of separation of the labia minora in infants.Methods:The patients were randomly divided into an experimental group with 24 cases and a control group with 25 cases.In the control group,1%iodophor was used to clean and disinfect the large and small labia and the surrounding skin,while normal saline was used in the experimental group.Other procedures such as the surgery and nursing method were the same in both groups.Results:There were no symptoms of urinary tract infection such as redness of the vulva,swelling,pain,and abnormal urination in the test group and control group after three days of follow-up,and no recurrence was seen at one month of follow-up.There was no statistically significant difference between the two groups(P>0.05).Conclusion:Use or non-use of a disinfectant to clean the urethral opening before separation of the labia minora has no significant effect on the outcomes,and does not cause postoperative urinary tract infection symptoms.Moreover,non-use of a disinfectant can prevent local irritation and reduce the economic burden on the patients.
基金supported by grants from the Science and Technology Foundation of Chongqing,China (No.cstc2021jcyj-bshX0056)the Key Grant from the National Clinical Research Center for Child Health and Disorders (China) (No.NCRCCHD-2021-KP-01)+1 种基金the National Natural Science Foundation of China (No.81974030)the National Key Clinical Specialty (China).
文摘Aging is an independent risk factor for cardiovascular diseases.Cardiac diastolic dysfunction(CDD),ultimately leading to heart failure with preserved ejection fraction(HFpEF),is prevalent among older individuals.Although therapeutics have made great prog-ress,preventive strategies remain unmet medical needs.Green tea catechins have been shown to be effective in improving aging-related cardiovascular and cerebral disorders in animal models and patients.However,little attention has been paid to whether long-term administration of epigallocatechin gallate(EGCG),the major bioactive ingredient of green tea catechins,could prevent the onset and progression of CDD.In this study,12-month-old female mice were orally administered 50,100 and 200 mg EGCG mixed with drinking water for 6 months.Aged mice(18 months old)exhibited the major features of HFpEF,including CDD with pEF,cardiac fibrosis,increased cardiomyocyte apoptosis,and mitochondrial damages,as well as elevated A/B-type natriuretic peptide.Cardiac troponin I(cTnI)expression was also reduced.Long-term administration of 100 or 200 mg EGCG prevented aging-related CDD and exercise capacity decline,along with alleviating myocardial apoptosis and mitochondria damage.The transcrip-tion and protein expression of cTnI were increased,which might be achieved by inhibiting the expression and activity of histone deacetylase 1(HDAC1),and reducing its binding level near cTnI's promoter,thereby elevating acetylated histone 3(AcH3)and acetylated lysine 9 on his-tone H3(AcH3K9)in the aged mice.We provide a novel insight that long-term administration of EGCG is a potentially effective strategy in preventing aging-related CDD and cTnI expression decline.
