Objective: To analyze the characteristics and safety risks of preservatives and sweeteners in beverages sold near schools in Anshun City, so as to provide a evidence for formulating targeted regulatory strategies in campus. Methods: From December 2023 to July 2024, 834 beverage samples were collected from sales points near primary and secondary schools in Xixiu District and four surrounding townships of Anshun City by a stratified random sampling method. High performance liquid chromatography was used to detect three preservatives (sorbic acid, benzoic acid and dehydroacetic acid) and four sweeteners (sodium saccharin, acesulfame-K, aspartame, and neotame). Differences were analyzed using the Chi-square test. Results: The overall exceedance rate of preservative was 8.6% (72 samples), with dehydroacetic acid showing the highest exceedance rate (7.0%, 58 samples), significantly higher than sorbic acid (0.6%, 5 samples) and benzoic acid (0.4%, 3 samples) ( χ 2=90.85, P <0.01). The overall exceedance rate of sweetener was 10.4% (87 samples), with sodium saccharin having the highest exceedance rate ( 6.2 %, 52 samples),significantly higher than neotame (2.8%, 23 samples), acesulfame-K (0) and aspartame (0) ( χ 2=262.04, P <0.01). Potential risks were identified due to the co occurrence of multiple additive exceedances, including 0.7% (6 samples) for mixed preservatives and 1.6% (13 samples) for mixed sweetener. No statistically significant differences were found in preservative (7.2%, 26 samples) or sweetener (12.3%, 44 samples) exceedance rates between micro enterprises and large, medium and small enterprises ( χ 2=2.67, 5.16, both P >0.05). Conclusion Systemic misuse risk of food additives in beverages sold near school necessitates a risk traceability based regulatory framework, with emphasis on standardizing enterprise production practices and strengthening oversight of sales outlets near campuses.

Covalently closed circular DNA(cccDNA)in hepatocytes is the replication intermediate of hepa-titis B virus(HBV),which is closely related to HBV replication.Meanwhile,it is the transcriptional template of pregenomic RNA(pgRNA),and most of the HBV RNA in serum is derived from unreversed transcribed pgRNA.In recent years,many studies have demonstrated that HBV RNA has an important role in monitoring disease progression and predicting the prognosis of chronic HBV-infected patients,and is a potential biomarker of chronic viral hepatitis B.This article provides an overview of the molecular characterisation of HBV RNA,detection methods and research progress in clinical applications.

Objective To describe and analyze the current situation of the four same type of departments in an hospital in order to provide a reference for the construction of"the most cost-effective medical care".Methods The CN-DRG were used to automatically group and compare the medical capacity and inpatient service efficiency of the hospital department groups,and in the refined analysis,one DRG disease group of in situ cancer and non-malignant disease loss uterine surgery and single species uterine fibroid was included,and the Kruskal-Wallis H test was used to further compare the differences in length of stay and various costs.Results It included a total of 22630 patients,whose weights varied from a maximum of 3948.62 in diagnostic group 1 to a minimum of 133.55 in diagnostic group 11.The cost consumption indexes ranged from a minimum of 0.89 in diagnostic group 5 to a maximum of 1.04 in diagnostic group 2,while the time consumption indexes ranged from a minimum of 0.48 in diagnostic group 11 to a maximum of 0.81 in diagnostic group 5.When comparing the diagnostic groups,there were statistically significant differences(P＜0.05)in hospitalization days,total cost,diagnostic cost,therapeutic cost,and cost of supplies.Specifically,when comparing the diagnostic and treatment groups within departments,the differences in hospitalization days and all costs were statistically significant(P＜0.05)in departments 1 and 2,the differences in diagnostic cost,therapeutic cost,and cost of supplies were statistically significant(P＜0.05)in department 3.Conclusion There exists a notable disparity in the extent to which each diagnostic and treatment group contributes to the hospital's service capacity and cost variability.Consequently,it is necessary to reasonably evaluate the length of hospital stay and medical cost of patients to achieve the highest cost-effective medical treatment.

Objective·To measure the parameters of the uterine artery,umbilical artery and middle cerebral artery in a rat model of preeclampsia(PE)by Doppler ultrasound,and compare the pathological changes in placental blood vessels and pregnancy outcomes,in order to provide an effective method and reference for evaluating placental function in PE animal models.Methods·PE(n=8)and normal pregnancy(NP,n=8)groups in Sprague-Dawley(SD)rat models were established by intraperitoneal injections of N'-nitro-L-arginine methylesterhydrochloride(L-NAME)and 0.9%sodium chloride solution.Blood pressure and proteinuria indexes were detected to evaluate whether the model was successfully established.On gestational day 19(GD19),Doppler ultrasound was utilized to measure the parameters of the uterine artery,umbilical artery and the fetal middle cerebral artery in both the PE and NP groups.After termination of the pregnancies,placental function was evaluated through the pathology of placental blood vessels and the quality of the fetuses and placentas.Results·In the PE group,both blood pressure(GD15:P=0.001;GD19:P=0.001)and proteinuria(GD15:P=0.001;GD19:P=0.001)were significantly higher than those in the NP group.The pulsatility index(PI)of the umbilical artery and uterine artery was notably elevated in the PE group compared to the NP group(both P=0.000).Furthermore,the resistance index(RI)of the fetal middle cerebral artery was significantly lower than that in the PE group(P=0.000).While the number of fetal rats did not differ significantly,the quality of placental and fetal rats was notably lower in the PE group(P=0.006 and P=0.000,respectively).Immunohistochemical staining of placental tissue revealed that the number of placental micro vessel densities in the PE group was less than that in the NP group(P=0.001).Correlation analysis revealed that placental micro vessel density,fetal quality and placental quality were inversely related with the RI of the umbilical artery and the PI and RI of the uterine artery,and positively correlated with the S/D,PI and RI of the fetal middle cerebral artery(all P<0.05).Conculsion·Doppler ultrasound assessment of the uterine artery,umbilical artery and middle cerebral artery indices in L-NAME-induced PE rat models effectively reflects pregnancy outcomes and placental vascular pathology.This method is valuable for evaluating placental vascular perfusion in PE rat models,offering practicality and convenience for research involving animal models.

OBJECTIVE To investigate the improve-ment functions of flavonoid compounds on temozolomide(TMZ)-,aging-or AD model-induced dysregulation of hip-pocampal NSC lineage progression,retardancy of den-dritic spine maturation in new-born neurons,as well as impairment of hippocampal-related learning and memory.METHODS We applied 30-week-old neural stem cell(NSC)specific promoter Nestin-GFP and NestinCreERT2:Rosa26-LSL-tdTomato transgenic mice and 16-week-old AD model 5XFAD transgenic mice,together with hippo-campal microinjection(ih),endogenous fluorescence trac-ing and immunofluorescent staining.RESULTS Both fla-vonoid compound A and its functional derivative flavo-noid compound B dose-dependently improved TMZ-,aging-or AD-induced defects of hippocampal NSC lin-eage progression and the maturation of dendritic spines of newborn neurons,thereby improving hippocampus related learning and memory.CONCLUSION This paper provides a new idea and treatment strategy for the devel-opment of new flavonoids that can promote neurogene-sis for neurodegenerative diseases and aging.

Objective To analyze the effects of painting and medication intervention on psycho-logical state,compliance and quality of life in patients with generalized anxiety disorder(GAD).Methods A total of 70 patients with GAD from May 2020 to September 2022 were included as study subjects,among whom 35 patients receiving single drug intervention were included in single group,and 35 patients receiving painting combined drug intervention were included in combined group.The psychological state scores and intervention compliance of the subjects in the two groups were ana-lyzed,the life quality scores and serum factor expression levels of the subjects in the two groups were compared before and after intervention,and the changes in sleep quality of the two groups were ob-served before and after intervention.Results After intervention,the scores of Hamilton Anxiety Rat-ing Scale(HAMA),Hamilton Depression Rating Scale(HAMD)in the two groups were decreased compared with those before intervention,but their scores in the combined group were lower,and the differences were statistically significant(P＜0.05).The total compliance rate of the combined group was higher than that of the single group(P＜0.05).After intervention,the 36-item Shot-form Health Status Survey(SF-36)scores of the two groups were improved compared with that before intervention,and the SF-36 score of the combined group was higher,the difference was statistically significant(P＜0.05).After intervention,the expression levels of brain derived neurotrophic factor(BDNF)and malondialdehyde(MDA)in the combined group were lower than those in the single group,and the expression level of superoxide dismutase(SOD)was higher than those in the single group(P＜0.05).After intervention,the sleep quality of the two groups was improved compared with that be-fore intervention,but the improvement degree of the combined group was higher(P＜0.05).Conclusion Painting combined with drug intervention can effectively improve the adverse psycho-logical state of GAD patients,improve their intervention compliance,and further improve their qual-ity of life and sleep quality.

OBJECTIVE: To analyze the clinical characteristics of patients with emergency in-hospital cardiac arrest (IHCA) in Kashgar, Xinjiang Uygur Autonomous Region and the factors affecting the success rate of cardiopulmonary resuscitation. METHODS: Retrospectively selected patients who had cardiac arrest and cardiopulmonary resuscitation in the emergency department of the People's Hospital of 6 counties and cities in Kashgar area from January 2019 to January 2022. The clinical data of all patients were collected, including gender, age, major underlying diseases, the beginning and duration of resuscitation, the number of electric defibrillation acute physiology and chronic health evaluation II (APACHE II). According to whether the resuscitation was successful, all patients were divided into successful resuscitation group and failed resuscitation group. The clinical characteristics of the two groups were compared. Then, the influencing factors of the success rate of cardiopulmonary resuscitation in IHCA patients were analyzed by binary Logistic regression. RESULTS: A total of 1 376 patients were enrolled, including 1 117 cases of failed resuscitation and 259 cases of successful resuscitation. The success rate of resuscitation was 18.82%. Compared with the resuscitation failure group, the patients in the successful resuscitation group were younger (age: 49.10±20.99 vs. 58.44±18.32), the resuscitation start time was earlier [resuscitation start time ≤ 5 minutes: 76.45% (198/259) vs. 66.61% (744/1 117)], the proportion of cardiovascular and cerebrovascular diseases was lower [cardiovascular disease: 49.42% (128/259) vs. 58.19% (650/1 117), cerebrovascular disease: 17.37% (45/259) vs. 21.58% (241/1 117)], the number of electric defibrillation was lower [times: 0 (0, 2) vs. 1 (0, 1)], the proportion of endotracheal intubation was more [80.31% (208/259) vs. 55.60% (621/1 117)], APACHE II score was lower (13.75±8.03 vs. 17.90±4.63), and the difference was statistically significant (all P < 0.01). Binary Logistic regression analysis showed that age, start time of resuscitation, ventilation mode and APACHE II score were protective factors affecting the success rate of cardiopulmonary resuscitation in patients with emergency IHCA [age: odds ratio (OR) = 0.982, 95% confidence interval (95%CI) was 0.973-0.991, P < 0.001; resuscitation start time ≤ 5 minutes: OR = 0.629, 95%CI was 0.409-0.966, P = 0.034; tracheal intubation assisted ventilation: OR = 0.243, 95%CI was 0.149-0.397, P < 0.001; low APACHE II score: OR = 0.871, 95%CI was 0.836-0.907, P < 0.001], while underlying diseases (cardiovascular diseases) are a risk factor affecting the success rate of cardiopulmonary resuscitation (OR = 1.190, 95%CI was 1.015-1.395, P = 0.036). CONCLUSIONS Age, resuscitation start time, ventilation mode, APACHE II score and major underlying diseases (cardiovascular diseases) have a greater impact on the success rate of resuscitation in IHCA patients. The above factors are conducive to improving or formulating more effective rescue strategies for IHCA patients, so as to achieve the purpose of improving the success rate of clinical treatment.
Humans ; Adult ; Middle Aged ; Aged ; Retrospective Studies ; Cardiopulmonary Resuscitation ; Heart Arrest/therapy* ; Electric Countershock ; Hospitals

Objective To explore the distribution of traditional Chinese medicine basic syndromes in sepsis,and to provide evidence for the establishment of diagnostic criteria of sepsis syndromes.Methods Literatures related to sepsis syndrome included in China National Knowledge Infrastructure(CNKI),Wanfang Data,VIP database(VIP)and Chinese Biomedical Literature Database(CBM)databases were searched from the establishment of the database to May 30,2020.Screen the literature and extract data,establish a database for statistical description and analysis of syndrome elements,basic syndromes and symptoms.Analyze the association rule of syndrome elements based on the Apriori algorithm.Based on the two-step hidden tree analysis LTM-EAST algorithm,a symptom latent structure model was constructed,and a comprehensive cluster analysis and model interpretation were performed.Results A total of 383 articles related to sepsis syndromes were included,involving 31 basic syndromes,146 symptoms and 29 syndromes elements.The basic syndromes with frequencies≥5%and cumulative composition ratios≥75%were heat and toxin syndrome,blood stasis syndrome,Yin deficiency syndrome,heat and closing syndrome,Qi deficiency syndrome,phlegm and heat syndrome,Yang prostration syndrome,Fu-organ excess syndrome,and Yang deficiency syndrome.Perform the association rule analysis on syndrome elements with a frequency＞5,obtaining 8 strong association rules,and inferring 7 basic syndromes,including Fu-organ excess syndrome,heat and toxin syndrome,heat and closing syndrome,phlegm clouding the heart syndrome,heat disturbing the heart spirit syndrome,phlegm and heat syndrome,phlegm block syndrome.The symptoms with frequency＞5 were analyzed by hidden structure,41 hidden variables and 82 hidden categories were obtained,and 11 comprehensive clustering models were obtained through comprehensive clustering.Eleven basic syndromes were inferred,including heat and toxin syndrome,blood stasis syndrome,Yin deficiency syndrome,heat and closing syndrome,Qi deficiency syndrome,phlegm and heat syndrome,Yang prostration syndrome,Fu-organ excess syndrome,Yang deficiency syndrome,Yingfen syndrome,and phlegm-dampness syndrome.Combined with all of methods above,9 basic syndromes,heat and toxin syndrome,blood stasis syndrome,Yin deficiency syndrome,heat and closing syndrome,Qi deficiency syndrome,phlegm and heat syndrome,Yang prostration syndrome,Fu-organ excess syndrome,and Yang deficiency syndrome were finally confirmed.Conclusion There are 9 common basic syndromes of sepsis,and the sufficient syndromes are mainly heat and toxin syndrome,blood stasis syndrome,heat and closing syndrome,phlegm and heat syndrome and Fu-organ excess syndrome,while the deficiency syndromes are mainly Yin deficiency syndrome,Qi deficiency syndrome,Yang prostration syndrome,and Yang deficiency syndrome,with each basic syndrome having certain symptom characteristics.

Objective:To asscentain the 131I activity concentration in 131I treatment workplaces and to explore the method of estimating the internal dose to workers by air sampling and to analyze its influencing factors. Methods:Air sampling method was used to collect aerosols containing radioactivity in 10 randomly selected workplaces in Zhengzhou where 131I therapy was performed. Aactivity concentration of 131I in treatment workplace was measured for gamma emitters by gamma-ray spectrometry. The internal dose due to 131I inhalation was estimated based on measurement result and field investigation result. Results:The activity concentration of 131I in air samples from 19 subpacking rooms ranged from 0.087 to 570 Bq/m 3, with an average of (51.04 ± 128.58) Bq/m 3. Those from 11 wards ranged from 0.162 to 54.6 Bq/m 3, with an average of (7.97 ± 15.89) Bq/m 3. In terms of the work hours recommended by the national standard GBZ 129-2016 Specifications for individual monitoring of occupational internal exposure, the estimated annual effective dose to radiation workers due to the inhalation of 131I ranges from 0.002 to 10 mSv, with an average of (0.61 ± 1.80) mSv, below the dose limit specified in the national standards. Conclusions:The samples with high 131I activity concentration in nuclear medicine workplaces of 10 medical institutions selected in Zhengzhou are mostly distributed in tertiary class hospitals operating large amount of radionuclide with large numbers of thyroid cancer patients adimitted. The result ing internal dose to radiation workers cannot be ignored. Estimating the internal dose based on the measurement result of air samples has a large uncertainty.However, air sampling method can promptly detect radioactive contamination in case of abnormal events or accidents, providing early warning for workers to carry out dose measurement from external exposure and internal exposure assessment.

Objective To analyze the effects of painting and medication intervention on psycho-logical state,compliance and quality of life in patients with generalized anxiety disorder(GAD).Methods A total of 70 patients with GAD from May 2020 to September 2022 were included as study subjects,among whom 35 patients receiving single drug intervention were included in single group,and 35 patients receiving painting combined drug intervention were included in combined group.The psychological state scores and intervention compliance of the subjects in the two groups were ana-lyzed,the life quality scores and serum factor expression levels of the subjects in the two groups were compared before and after intervention,and the changes in sleep quality of the two groups were ob-served before and after intervention.Results After intervention,the scores of Hamilton Anxiety Rat-ing Scale(HAMA),Hamilton Depression Rating Scale(HAMD)in the two groups were decreased compared with those before intervention,but their scores in the combined group were lower,and the differences were statistically significant(P＜0.05).The total compliance rate of the combined group was higher than that of the single group(P＜0.05).After intervention,the 36-item Shot-form Health Status Survey(SF-36)scores of the two groups were improved compared with that before intervention,and the SF-36 score of the combined group was higher,the difference was statistically significant(P＜0.05).After intervention,the expression levels of brain derived neurotrophic factor(BDNF)and malondialdehyde(MDA)in the combined group were lower than those in the single group,and the expression level of superoxide dismutase(SOD)was higher than those in the single group(P＜0.05).After intervention,the sleep quality of the two groups was improved compared with that be-fore intervention,but the improvement degree of the combined group was higher(P＜0.05).Conclusion Painting combined with drug intervention can effectively improve the adverse psycho-logical state of GAD patients,improve their intervention compliance,and further improve their qual-ity of life and sleep quality.