ObjectiveTo investigate the prevalence of polycystic ovary syndrome （PCOS） among female college students at a university in Fuzhou City， Jiangxi Province， and to facilitate early detection and intervention of PCOS. MethodsUsing a stratified sampling method， a total of 450 female freshmen were randomly selected for PCOS screening. A self-designed questionnaire was used for data collection， covering menstrual status， high androgen signs， lifestyle， dietary habits， and awareness of PCOS. Sample t test and χ² test were used to compare the basic information and dietary habits between PCOS and non-PCOS cases. The correlation between various indicators and the prevalence of PCOS was analyzed by a logistic regression model. ResultsA total of 12 PCOS cases were identified， with a prevalence rate of 2.99%. PCOS cases exhibited statistically significant differences compared to non-PCOS cases in terms of waist-to-hip ratio， waist circumference， abdominal obesity， the proportion of overweight or obese individuals， and a preference for sweet food （all P<0.05）. Multivariate logistic regression analysis revealed a significant correlation between preference for sweet food and the occurrence of PCOS （OR=4.858， 95%CI=1.199‒19.675，P=0.027）， as well as a significant correlation with PCOS accompanied by abdominal obesity （OR=7.083， 95%CI=0.773‒64.937， P=0.048）. Among the female college students surveyed， 37.90% had never heard of PCOS， 51.62% were only familiar with the name of the disease， and 10.47% had attempted to search for PCOS-related information. ConclusionThe prevalence of PCOS among female college students should not be overlooked and unhealthy dietary habits may be a crucial factor contributing to the occurrence of PCOS during this period. Early screening for PCOS during puberty is crucial.

Objective:To analyze the efficacy and safety of nalbuphine for analgesia in patients with non-mechanical ventilation in intensive care unit (ICU).Methods:From December 2018 to August 2021, a multicenter randomized controlled clinical study was conducted to select non-mechanical ventilation patients with analgesic needs admitted to ICU of four hospitals in Henan Province and Guizhou Province. Patients were randomly assigned to nalbuphine group and fentanyl group. The nalbuphine group was given continuous infusion of nalbuphine [0.05~0.20 mg/(kg·h)], and the fentanyl group was given continuous infusion of fentanyl [0.5~2.0 μg/(kg·h)]. The analgesic target was critical-care pain observation tool (CPOT) score<2. The observation time was 48 hours. The primary endpoint was CPOT score, the secondary endpoints were Richmond agitation-sedation score (RASS), ICU length of stay, adverse events, and proportion of mechanical ventilation. The quantitative data of the two groups were compared by t test or Mann-Whitney U test. The enumeration data were compared by chi square test or Fisher exact probability method. The data at different time points between groups were compared by repeated measures analysis of variance. Results:A total of 210 patients were enrolled, including 105 patients in the nalbuphine group and 105 patients in the fentanyl group. There was no significant difference in baseline data between the two groups (all P>0.05). There was no significant difference in CPOT score between nalbuphine group and fentanyl group at each time point after medication ( P>0.05), the CPOT score of both groups at each time point after medication was significantly lower than that before medication, and the analgesic target could be achieved and maintained 2 hours after medication. There was no significant difference in RASS between the two groups at each time point after medication ( P>0.05), which was significantly lower than that before medication, and the target sedative effect was achieved 2 hours after medication. There was no significant difference in ICU length of stay between nalbuphine group and fentanyl group [5.0(4.0,7.5) d vs. 5.0(4.0,8.0) d, P=0.504]. The incidence of delirium, nausea and vomiting, abdominal distension, pruritus, vertigo and other adverse events in the nalbuphine group was lower than that in the fentanyl group (all P<0.05). There was no significant difference in the incidence of other adverse events such as deep sedation, hypotension and bradycardia between the two groups (all P>0.05). The incidence of respiratory depression in nalbuphine group was not significantly different from that in fentanyl group ( P>0.05), but the proportion of mechanical ventilation was significantly lower than that in the fentanyl group [1.9% (2/105) vs. 8.6%(9/105), P=0.030]. Conclusions:Nalbuphine could be used for analgesia in ICU patients with non-mechanical ventilation. The target analgesic effect could be achieved within 2 hours, and it had a certain sedative effect with a low incidence of adverse reactions.

Objective To observe the effects of Daizong Prescription on glycogen metabolism in adipose tissue of obese mice;To explore its regulatory mechanism in activating browning in the white adipose tissue.Methods A obesity model was established by feeding high-fat diet to C57BL/6J mice.The obese mice were divided into model group,metformin group(0.15 g/kg),and Daizong Prescription low-(0.20 g/kg)and high-dosage(0.40 g/kg)groups.Mice fed a standard diet were set as the normal group,with 12 mice in each group.Each medication group was given corresponding drugs by gavage for 6 consecutive weeks.Body mass and fasting blood glucose were monitored,serum triglycerides(TG),total cholesterol(TC),high-density lipoprotein cholesterol(HDL-C),and low-density lipoprotein cholesterol(LDL-C)contents were measured.Brown adipose tissue from the interscapular region and white adipose tissue from the inguinal,perirenal and epididymal region were collected,the adipose tissue mass was measured,and the body fat coefficient was calculated.HE staining was performed to observe morphological changes in adipose tissue,PAS staining was used to observe glycogen distribution in adipose tissue,immunohistochemistry staining was performed to detect the expressions of Gys2,Ppp1r3c,and GSK-3β in inguinal white adipose tissue.Results Compared with the normal group,the body mass and fasting blood glucose in different time points of the model group significant increase(P<0.05,P<0.01),and serum TC and HDL-C contents significantly increased(P<0.01);the mass and body fat coefficient of white adipose tissue in inguinal,perirenal,and epididymis significantly increased(P<0.01),the cells in white adipose tissue in inguinal were hypertrophic and appeared as large vacuoles,with less glycogen accumulation,the expressions of Gys2 and Ppp1r3c significantly decreased(P<0.01).Compared with the model group,the mice in Daizong Prescription high-dosage group showed a significant decrease in body mass and fasting blood glucose at 4 and 6 weeks of administration(P<0.05,P<0.01),and the contents of serum TG,TC,HDL-C,and LDL-C were significantly decreased(P<0.01);the mass and body fat coefficient in white adipose tissue of perirenal and epididymal significantly decreased(P<0.05,P<0.01),and the mass of inguinal white adipose tissue significantly decreased(P<0.05),multiple irregularly shaped small vacuoles could be seen in inguinal white adipose tissue,accompanied by nuclear aggregation and increased glycogen accumulation,the expressions of Gys2 and Ppp1r3c significantly increased(P<0.01).There was no significant difference in the expression of GSK-3β inguinal white adipose tissue of mice among the groups.Conclusion Daizong Prescription can increase the activity of Gys2 by upregulating the expression of Ppp1r3c,promote glycogen synthesis,induce browning of adipose tissue,increase fat heat production,and improve obesity and related disorders of glycolipid metabolism.

Objective To investigate the clinical features and maternal and fetal outcomes of acute pancreatitis in pregnancy(APIP)and the risk factors for disease aggravation,and to establish a predictive model.Methods A retrospective analysis was performed for 52 APIP patients who were admitted to Affiliated Hospital of Zunyi Medical University from January 2017 to December 2022,and according to disease severity,they were divided into mild acute pancreatitis(MAP)group with 32 patients,moderate-severe acute pancreatitis(MSAP)group with 8 patients,and severe acute pancreatitis(SAP)group with 12 patients.The logistic regression analysis was performed for the clinical data of each group,and the receiver operating characteristic(ROC)curves were plotted to assess the value of risk factors in predicting the severity of APIP.A one-way analysis of variance was used for comparison of normally distributed continuous data between multiple groups,and the least significant difference t-test was used for further comparision between two groups.The Kruskal-Wallis H test was used for comparison of non-normally distributed continuous data between multiple groups,and the Wilcoxon rank-sum test was used for further comparision between two groups;the chi-square test was used for comparison of categorical data between groups.Results Of all patients in terms of etiology,26(50%)had hyperlipidemic pancreatitis,20(38.4%)had biliary pancreatitis,and 6(11.5%)had idiopathic pancreatitis.In terms of gestational week,1 patient(1.9%)was in early pregnancy,25(48.1%)were in mid-pregnancy,and 26(50.0%)were in late pregnancy.A total of 10 patients(19.2%)had acute respiratory distress syndrome(ARDS),among whom 9(90%)required respiratory support.There were significant differences between the patients with different severities of APIP in aspartate aminotransferase,alanine aminotransferase,blood urea nitrogen,blood glucose,C-reactive protein(CRP),international normalized ratio(INR),pneumonia,ARDS,sepsis,hepatic insufficiency,and coagulation dysfunction(all P<0.05).The univariate analysis showed that the severity of APIP was associated with blood glucose,blood urea nitrogen,CRP,and pneumonia(all P<0.05),and pneumonia was a risk factor for the aggravation of APIP(odds ratio=18.938,95%confidence interval:1.020—351.747,P=0.048).CRP,blood glucose,blood urea nitrogen,and INR used in combination had a larger area under the ROC curve than each index used alone(0.954 vs 0.778/0.796/0.721/0.801).Conclusion Pneumonia is a risk factor for the aggravation of APIP,and the combination of CRP,blood glucose,blood urea nitrogen,and INR can be used to predict the severity of APIP.

Objective:To explore the function of MDM2 and its relationship with p53 at the cellular level during H 2O 2 induced oxidative damage. Methods:MLE-12 HALI cell models were established using 0.5 mmol/L H 2O 2, and were divided into three groups: normal control group, H 2O 2 injury group, H 2O 2+MDM2 overexpressed group, and H 2O 2+MDM2 shRNA group. Infection of MLE-12 cells with adenovirus vector overexpressing and silencing MDM2; Using immunoprecipitation (Co-IP) to analyze the interaction between MDM2 and p53; Western blotting was used to detect the protein expression levels of MDM2, p53, Bcl-2, Bax, and cleared caspase-3 after HALI modeling; Measure the apoptosis rate of cells in each group. Results:After transcriptome sequencing,the p53 signaling pathway closely related to HALI. Compared with the normal group, the expression of MDM2 in the H 2O 2 injury group was lower ( P<0.05); Compared with the H 2O 2 injury group, overexpression of MDM2 resulted in a decrease in the apoptosis rate of MLE-12 cells ( P<0.05), a decrease in the expression levels of p53, Bax, and cleared caspase-3 proteins, and an upregulation of MDM2 and Bcl-2 protein expression ( P<0.05). Compared with the H 2O 2 injury group, when MDM2 was silenced, the cell apoptosis rate increased ( P<0.05), and the expression levels of p53, Bax, and cleared caspase-3 proteins were upregulated, while the expression levels of MDM2 and Bcl-2 proteins decreased ( P<0.05). Co-IP experiments showed that MDM2 binds to p53 protein. Conclusions:MDM2 can exert a protective effect on HALI by inhibiting MLE-12 cell apoptosis through the p53/Bcl-2/Bax axis.

Objective:To analyze the clinical characteristics and prognosis of acute pancreatitis (AP) in children, and provide reference for clinical prevention and treatment of AP in children.Methods:Based on the electronic medical record system of the Affiliated Hospital of Zunyi Medical University, the clinical data of children with AP in the hospital from January 2011 to December 2020 were retrospectively analyzed. According to the severity of the disease, the children were divided into mild acute pancreatitis (MAP) group and severe acute pancreatitis (SAP) group. The general data, laboratory tests and outcomes indicators of the two groups were collected and compared. The epidemiological characteristics of children with AP were analyzed. Multivariate Logistic regression was used to analyze the risk factors of SAP in children.Results:A total of 227 children with AP were enrolled, including 161 in MAP group and 66 in SAP group. The median age of children with AP was 12.00 (8.00, 16.00) years old, and 126 cases (55.51%) were male. The main initial clinical symptoms were abdominal pain, nausea, vomiting and abdominal distension (97.36%, 61.67% and 14.10%, respectively), 21 cases (9.25%) were admitted to intensive care unit (ICU), and 4 cases (1.76%) died in hospital due to sepsis, multiple organ dysfunction or traumatic shock. The epidemiological characteristics showed that the first onset age of AP was mainly 7-17 years old (85.02%); the main etiologies were biliary tract disease (29.96%), viral infection (29.07%) and idiopathic factors (19.82%). From 2011 to 2020, the number of children with AP showed a fluctuating trend, and from 2018 to 2020, the number of children with AP increased for three consecutive years. Compared with MAP group, the age of SAP group was significantly older, the proportion of female, the proportion of rural source, acute physiology and chronic health evaluationⅡ(APACHEⅡ), body mass index (BMI), and the levels of white blood cell count (WBC), C-reactive protein (CRP), hospitalization expenses, the proportion of AP caused by traumatic factors and drug factors in SAP group were significantly higher (all P < 0.05). The level of blood calcium and the proportion of AP caused by virus infection were significantly lower, and the length of hospital stay in SAP group was significantly longer (all P < 0.05). The multivariate Logistic regression analysis showed that APACHEⅡscore [odds ratio ( OR) = 1.495, 95% confidence interval (95% CI) was 1.293-1.728] and age ( OR = 1.352, 95% CI was 1.182-1.546) were closely related to SAP in children (all P < 0.001). Conclusion:Children with AP mostly occurs in preschool and adolescence, and the overall mortality is relatively low; biliary tract disease, viral infection and idiopathic factors are common causes; APACHEⅡ score and age may be risk factors for SAP in children.

Objective:To develop a novel, flexible, dual-arm, master-slave digestive endoscopic minimally invasive surgical robot system named dual-arm robotic endoscopic assistant for minimally invasive surgery (DREAMS) and to evaluate its feasibility for endoscopic submucosal dissection (ESD) by using ex vivo porcine stomachs.Methods:A novel endoscopic robot (DREAMS) system was developed which was composed of a flexible two-channel endoscope, two flexible robotic manipulators, a master controller, a robotic arm, and a control system. A total of 10 artificial round-like lesions with diameters ranging from 15 to 25 mm were created (5 in gastric antrum and 5 in gastric body) by using fresh peeled stomach of healthy pigs as the model. Submucosal dissection was performed with the assistance of the DREAMS system by two operators. The main outcome was submucosal dissection speed, and the secondary outcomes included muscular injury rate, perforation rate, and grasping efficiency of the robot.Results:All 10 lesions were successfully dissected en bloc by using the DREAMS system. The diameter of the artificial lesions was 22.34±2.39 mm, dissection time was 15.00±8.90 min, submucosal dissection speed was 141.79±79.12 mm 2/min, and the number of tractions required by each ESD was 4.2 times. Muscular injury occurred in 4/10 cases of ESD. No perforation occurred. Conclusion:The initial animal experiment shows the DREAMS system is safe and effective.

OBJECTIVE: To investigate the effect of hyperoxia on intestinal metabolomics in mice. METHODS: Sixteen 8-week-old male C57BL/6 mice were randomly divided into hyperoxia group and control group, with 8 mice in each group. The hyperoxia group was exposed to 80% oxygen for 14 days. Mice were anesthetized and euthanized, and cecal contents were collected for untargeted metabolomics analysis by liquid chromatography-mass spectrometry (LC-MS) combined detection. Orthogonal partial least square discriminant analysis (OPLS-DA), volcano plot analysis, heat map analysis, and Kyoto Encyclopedia of Genes and Genomes (KEGG) were used to analyze the effects of hyperoxia on metabolism. RESULTS: (1) OPLS-DA analysis showed that R²Y was 0.967 and Q² was 0.796, indicating that the model was reliable. (2) Volcano plot and heat map analysis showed significant statistical differences in the expression levels of metabolites between the two groups, with 541 up-regulated metabolites, 64 down-regulated metabolites, and 907 no differences, while the elevated 5-hydroxy-L-lysine was the most significant differential metabolite induced by high oxygen. (3) KEGG pathway enrichment analysis showed that porphyrin and chlorophyll metabolism (P = 0.005), lysine degradation (P = 0.047), and aromatic compound degradation (P = 0.024) were the targets affected by hyperoxia. (4) Differential analysis of metabolic products through KEGG enrichment pathway showed that hyperoxia had a significant impact on the metabolism of porphyrin and chlorophyll, lysine, and aromatic compounds such as benzene and o-cresol. CONCLUSIONS Hyperoxia significantly induces intestinal metabolic disorders. Hyperoxia enhances the metabolism of porphyrins and chlorophyll, inhibits the degradation of lysine, and delays the degradation of aromatic compounds such as benzene and o-cresol.
Mice ; Male ; Animals ; Lysine ; Hyperoxia ; Benzene ; Mice, Inbred C57BL ; Metabolic Diseases ; Oxygen ; Chlorophyll ; Porphyrins ; Biomarkers/metabolism*

Objective:To investigate the influencing factors of urinary tract infection in pregnant women with diabetes and the distribution characteristics of pathogens in the middle urinary tract.Methods:A total of 220 patients with gestational diabetes who visited the Second People′s Hospital of Lianyungang City from December 2018 to December 2021 were selected as the study subjects, and the incidence of urinary tract infection was counted. According to the diagnosis results of urinary tract infection, they were divided into infected group and uninfected group. The infected group took the middle urine for pathogen culture, and the resistance rate of main gram-negative bacteria to antibiotics was analyzed; Logistic regression model was used to analyze the influencing factors of urinary tract infection in pregnant women with diabetes.Results:There were 32 cases of urinary tract infection in 220 patients with gestational diabetes, and the infection rate was 14.55%(32/220). 43 strains of pathogenic bacteria were identified, mainly gram-negative bacilli [72.09%(31/43)], followed by gram-positive cocci [20.93%(9/43)] and fungi [6.98%(3/43)]. Amongthe main gram-negative bacteria, escherichia coli had a high resistance rate to ampicillin and levofloxacin, while Klebsiella pneumoniae had a high resistance rate to ampicillin and cefazolin; There were significant differences between the infected group and the non infected group in age, hospital stay, personal urinary tract infection history, pregnancy sexual life history, use of antibiotics, fasting blood sugar, serum albumin, and glycated hemoglobin (all P<0.05); Multivariate logistic regression results showed that personal history of urinary tract infection, sexual life during pregnancy, non-standard use of antibiotics, serum albumin<30 g/L, glycated hemoglobin ≥7%, and fasting blood sugar ≥8.5 mmol/L were independent risk factors for urinary tract infection in pregnant diabetes patients (all P<0.05). Conclusions:There is a high incidence of urinary tract infection in patients with gestational diabetes, and the risk factors are complex. Gram negative bacilli are the main pathogenic bacteria. Antibacterial drugs can be reasonably selected for intervention according to drug sensitivity test in clinical practice.