1.Attributable risk of emergency ambulance calls associated with non-optimal temperature in Dezhou, Shandong Province: A comparative analysis using multiple temperature indicators
Hujia ZHANG ; Yiyi WANG ; Xiaochi ZHANG ; Yanwen CAO ; Qi ZHAO ; Ye ZHENG ; Weihong YANG
Journal of Environmental and Occupational Medicine 2026;43(8):972-978
Background In the context of climate change, the health burden associated with non-optimal temperature is becoming increasingly substantial. Emergency ambulance calls (EACs) are a sensitive indicator of acute health effects. However, most previous studies have relied on daily mean temperature (MT) or a single thermal stress indicator, and it remains unclear whether different temperature indicators yield materially different estimates of the health burden attributable to non-optimal temperature. Objective To compare multiple temperature indicators in evaluating the attributable burden of EACs associated with non-optimal temperature in Dezhou City, Shandong Province. Methods Daily EACs records and corresponding meteorological data in Dezhou from 2014 to 2023 were collected. A time-stratified case-crossover design with conditional logistic regression, combined with distributed lag non-linear models (DLNM), was employed to examine the exposure-response relationships and population attributable burden of EACs associated with the percentiles of daily MT and 12 commonly used thermal stress indicators. Results During the study period, a total of 952989 EACs were recorded in Dezhou. For all temperature indicators, the cumulative exposure-response curves showed a V-shaped pattern. Among the attributable fraction (AF) estimates, only those derived from the universal thermal climate index for outdoor shaded space (UTCI3) and wet-bulb temperature (WBT) were significantly lower than the estimates based on MT (P < 0.05); no statistically significant differences were observed for the other indicators. The AF based on MT was 5.24% (95%CI: 4.34%, 6.16%), and the attributable burden was mainly driven by cold temperatures (AF=3.57%, 95%CI: 2.65%, 4.48%). Spatially, high heat-attributable EACs rates per 1000 population were primarily concentrated in the central and southern Dezhou, whereas areas with high cold-attributable EACs rates were more dispersed. The overall spatial pattern of EACs attributable to non-optimum temperatures was more consistent with the distribution of cold-related risks. Subgroup analysis showed that, across susceptible population groups, the AF estimates derived from most thermal stress indicators did not differ significantly from those based on MT. Conclusion In Dezhou, most thermal stress indicators produce attributable burden estimates for EACs associated with non-optimal temperature that are similar to those based on daily MT, and cold temperatures contribute more to the overall attributable burden. The spatial distribution of EACs attributable to non-optimal temperature is dispersed, whereas heat-attributable hotspots are concentrated in central and southern Dezhou.
3.Effect of preoperative pancreatic duct stent placement in enucleation of pancreatic tumor adjacent to the main pancreatic duct
Haotian YU ; Shubin ZHANG ; Jianhua LIU ; Jianzhang QIN ; Chengxu DU ; Xinda YANG ; Weihong ZHAO ; Haitao LYU
Chinese Journal of Hepatobiliary Surgery 2025;31(1):43-48
Objective:To study the effect of preoperative pancreatic duct stent placement in enucleation (EN) of pancreatic tumor adjacent to the main pancreatic duct (MPD).Methods:Clinical data of 56 patients with benign or borderline pancreatic tumor adjacent to the MPD undergoing EN in the Department of Hepatobiliary Surgery of the Second Hospital of Hebei Medical University from January 2022 to September 2024 were retrospectively analyzed, including 25 males and 31 females, aged (32.0±5.5) years. Among the patients, 35 (62.5%) were solid pseudopapillary neoplasm, 15 (26.8%) were neuroendocrine tumor, and 6 (10.7%) were serous cystic tumor. According to whether the pancreatic duct stent was placed through encoscopic retrograde cholangiopancreatography preoperatively, patients were divided into the stent group ( n=20, observation group) and no-stent group ( n=36, control group). The operation time, intraoperative pancreatic duct injury, tumor enucleation time and blood loss, grade B/C pancreatic fistula and postoperative hospital stay were compared between the two groups. Results:All patients underwent EN successfully. The operation time in the observation group was shorter than that in the control group [150.0 (143.5, 159.0) vs 158.0 (150.0, 180.0) min, Z=-2.08, P=0.031], and the rate of intraoperative MPD injury in the observation group was lower than that in the control group [10.0% (2/20) vs 38.9% (14/36), χ2=5.26, P=0.022]. The tumor enucleation time and blood loss were comparable between the two groups (both P>0.05). The rate of postoperative grade B/C pancreatic fistula in the observation group was lower than that in the control group [15.0% (3/20) vs 41.7% (15/36), χ2=4.19, P=0.041], and the postoperative hospital stay was also shorter in the observation group [(7.9±1.6) vs (9.3±2.1) d, t=-2.57, P=0.014]. Conclusion:Under the premise of matured endoscopic operation, preoperative pancreatic duct stent placement through ERCP in the EN of pancreatic tumor adjacent to the MPD can protect the MPD during operation, reduce the occurrence of postoperative grade B/C pancreatic fistula, and shorten the postoperative hospital stay.
4.The expression of YTHDF2 in cervical lesions and its relationship with prognosis based on bioinformatics
Yushu PENG ; Nan TIAN ; Xinlin FENG ; Rui ZHANG ; Zhaoxia RAN ; Jintao WANG ; Weihong ZHAO ; Zhiqiang TIAN ; Ling DING
Chinese Journal of Epidemiology 2025;46(2):280-287
Objective:To investigate the role of YTHDF2 in cervical lesions and its potential molecular mechanism.Methods:Gene expression data of cervical tissue were obtained from the GEO database to analyze the expression of YTHDF2 mRNA and perform pathway enrichment analysis. Patients with cervical lesions diagnosed by thinprep cytologic test in Gynecological Outpatient Department of Maternal and Child Health Hospital in Jiexiu, Shanxi Province, were selected as the research subjects. Data of cervical lesions and cervical exfoliated cells were collected. HPV infection status was detected by flow-through hybridization, and the expression of YTHDF2 mRNA was detected by reverse transcription real-time polymerase chain reaction. The expression of YTHDF2 in cervical lesions and the mediating role of HPV infection in the relationship between YTHDF2 and squamous intraepithelial lesion (SIL) were evaluated. YTHDF2-related genes were screened from multiple datasets in the GEO and ENCORI databases, and their expression, immune infiltration, and survival analysis were performed to assess the association between YTHDF2 and prognosis. Results:Compared with normal cervical tissue, YTHDF2 was highly expressed in cervical lesion tissue ( P<0.05). A total of 3 672 differentially expressed genes were screened from the dataset GSE49339. Gene Ontology analysis showed that YTHDF2 was mainly involved in transcription regulation. Kyoto Encyclopedia of Genes and Genomes analysis showed that YTHDF2 might be related to HPV infection and other signaling pathways. In the mediation analysis, χ2 test results showed that the expression level of YTHDF2 was significantly different among groups ( χ2=22.47, P<0.001). Trend χ2 test further showed that the expression level of YTHDF2 was upregulated with the degree of cervical precancerous lesions (trend χ2=10.26, P=0.001). Multivariate logistic regression analysis indicated that high YTHDF2 expression increased the risk of low-grade squamous intraepithelial lesions ( OR=3.15, 95% CI: 1.93-5.15) and high-grade squamous intraepithelial lesions ( OR=1.85, 95% CI: 1.01-3.39). Mediation effect analysis revealed a partial mediating effect of HPV infection between YTHDF2 and SIL, accounting for 32.02% of the total effect. Twelve YTHDF2 related genes were screened by the intersection of multiple datasets. The immune infiltration analysis results showed that YTHDF2 and related genes KLF4, E2F3 and HOXC6 were associated with immune infiltration (all P<0.05). Multivariate Cox proportional hazard regression model analysis showed that low expression of KLF4 ( HR=0.53, 95% CI: 0.30-0.94) and high expression of RHOB ( HR=1.80, 95% CI: 1.04-3.13) were risk factors for the prognosis of cervical cancer. Conclusion:YTHDF2 is highly expressed in cervical lesions and may have been involved in the regulation of HPV infection-related pathways and its downstream related genes are related to immune infiltration and prognosis of cervical cancer, providing a theoretical basis for the study of mechanisms related to cervical lesions.
5.Comparison of five virus enrichment methods for drinking water
Mengdi TAN ; Zhiyong GAO ; Jiachen ZHAO ; Hanqiu YAN ; Weihong LI ; Daitao ZHANG ; Quanyi WANG ; Weixian SHI
Chinese Journal of Experimental and Clinical Virology 2025;39(1):102-108
Objective:To compare the enrichment effects of ultrafiltration, polyethylene glycol (PEG) precipitation, aluminum salt precipitation, and anionic membrane adsorption-elution on viruses in drinking water.Methods:Using phage MS2 as the target virus, three different concentrations of drinking water samples were prepared, and the samples were enriched by ultrafiltration 1, ultrafiltration 2, PEG precipitation, aluminum salt precipitation, and anionic membrane adsorption-elution method, respectively. Real-time fluorescence quantitative reverse transcription-polymerase chain reaction (RT-qPCR) was used to quantify MS2 nucleic acid in pre and post concentrated samples and the recovery rates of MS2 in samples with high, medium and low concentrations were compared among the five methods.Results:Comparing the MS2 enrichment recovery rates of individual enrichment method in water samples of different concentrations, ultrafiltration method 1, PEG precipitation method, aluminum salt precipitation method, and membrane adsorption-elution method were not affected by the sample concentration, and the differences of the recovery rates for the three concentration water samples among the four methods were not statistically significant ( P>0.05). The MS2 enrichment recovery rates of the five enrichment methods were significantly different in all concentration samples ( P<0.05). The recovery rates of ultrafiltration method 1 were higher in all three concentration samples, followed by aluminum salt precipitation and anionic membrane adsorption-elution, PEG precipitation were higher in high concentration samples, but lower in low and medium concentration samples, and the recovery rates of ultrafiltration method 2 were the lowest in all three concentration samples. Comparing the Ct values of MS2 in the enriched samples by five methods, the Ct values of ultrafiltration method 1 were the smallest in the three concentration water samples. There was no statistically significant difference in MS2 Ct values among the five enrichment methods in the medium and high concentration water samples ( P>0.05). In low concentration simulated water samples, only the difference of MS2 Ct value between ultrafiltration method 1 and ultrafiltration method 2 was statistically significant ( Z=16.000, P=0.016). Conclusions:Considering the operation simplicity, operation time and virus recovery rate after enrichment, ultrafiltration was the most effective method for virus enrichment in drinking water.
6.Analysis of the Implementation Status,Effect Evaluation and Countermeasures of the on Surplus Drugs Policy of Medical Institutions in Shanxi Province
Hongli GAO ; Cuihua CUI ; Qiang ZHAO ; Weihong CHEN
Herald of Medicine 2025;44(11):1854-1859
Objective This study comprehensively analyzes the current implementation status and influencing factors of the"Administrative Measures for Surplus Drugs of Medical Institutions(Trial)"(referred to as the"Measures"),it helps solve the problems that have long plagued the management of surplus drugs in medical institutions.Methods Based on the framework of Health Policies Triangle,starting from the policy content,and from the perspectives of various actors,a questionnaire was designed from three dimensions:the current implementation status,the implementation effect,and the countermeasures suggestions.The management of surplus drugs in secondary and tertiary medical institutions throughout the province was investigated,then we will analyze the investigation results,evaluate the implementation effectiveness and influencing factors,and propose targeted suggestions.Results 84%of medical institutions have fully or partially implemented the measure,The implementation of the"Measures"has prevented hospitals from being subject to administrative penalties again due to surplus drugs,determined the disposal methods for surplus drugs,promoted the establishment of surplus drug management systems and directories by implementing hospitals,and clarified the varieties of surplus drugs in Shanxi Province.Conclusion The"Method"has significant implementation effects and clarified management provisions and filled the gaps in current management.The problems encountered include:The definition of surplus medicines limits the implementation of the"Measures"in secondary hospitals;The measures to reduce surplus drugs at the source have not been detailed;the awareness of the content of the"Measures"is insufficient;the collaboration among departments is lacking.It is suggested to revise and implement the"Measures"by clarifying the categories of drugs that can be charged by the unit and management rules in Shanxi Province,optimizing the definition of surplus drugs,clarifying the management regulations of each department,refining the informed consent method of patients,expanding the scope of special funds.In addition,the publicity efforts for"Measures"need to be strengthen,in order to further solve the problem of surplus drug management in medical institutions.
7.Therapeutic efficacy and mechanism of artesunate for mouse model of polycystic ovary syndrome
Xueling WANG ; Peiling ZHONG ; Zhipeng ZHAO ; Fei CHEN ; Xin LIU ; Sijia LIU ; Lie YUAN ; Lu FANG ; Qianyi YAO ; Xiong YANG ; Chao LIU ; Jiakun CHENG ; Yongqing CAI ; Xiaoli LI ; Weihong LI
Journal of Army Medical University 2025;47(3):193-204
Objective To investigate the therapeutic efficacy of artesunate(AS)on polycystic ovary syndrome(PCOS)in mice and explore the potential mechanism primarily.Methods Twenty-five female C57BL/6J mice were randomly divided into Control group,model group(PCOS group),low-and high-dose AS groups(AS15 and AS30 groups)and metformin group(Met group).In addition to the Control group,the mouse model of PCOS was established by subcutaneous injection of dehydroepiandrosterone(DHEA,60 mg/kg)following by a high-fat diet for 21 d.After modeling,AS of 15 and 30 mg/kg was intraperitoneally injected into the mice of the AS 15 and AS30 groups,respectively,and 200 mg/kg Met was given to those of the Met group by gavage,once per day,for 6 weeks.ELISA was used to detect serum testosterone(T),fasting insulin(FINS),luteinizing hormone(LH)and follicle-stimulating hormone(FSH),and the LH/FSH ratio was calculated.The levels of fasting blood glucose(FBG),triglyceride(TG)and total cholesterol(TC)were detected by automatic biochemical analyzer,and the homeostasis model assessment of insulin resistance(HOMA-IR)was calculated.The estrous cycle was observed,and HE staining was performed for pathological changes in the ovary and uterus.Immunofluorescence assay was employed to measure the expression of p-eIF2α,ATF4 and CHOP in the ovarian tissue.After steroidogenic human granulosa-like tumor cell line KGN were exposed to 100 μmol/L DHEA to simulate the hyperandrogen environment of PCOS,and then treated with 5 and 10 μg/mL AS for 24 h,the protein levels of endoplasmic reticulum stress signaling pathway was detected by Western blotting.Results Compared with the Control group,the PCOS mice had disturbed estrous cycle,polycystic changes in the ovaries,and significantly increased serum T level and LH/FSH ratio(P<0.05),and obviously elevated HOMA-IR,TC and TG levels in terms of metabolism(P<0.01).The expression levels of p-eIF2α,ATF4 and CHOP were notably up-regulated in the ovarian granulosa cells of PCOS mice and KGN cells after DHEA exposure(P<0.05).Additionally,AS treatment attenuated the pathological changes of ovary and uterine expression,decreased the serum T level and the LH/FSH ratio(P<0.05),and reduced HOMA-IR,TC and TG levels(P<0.05)when compared with the PCOS mice.Moreover,the expression levels of p-eIF2α,ATF4 and CHOP were significantly down-regulated after AS treatment in both ovarian granulosa cells of PCOS mice and KGN cells(P<0.05).Conclusion AS significantly improves glycolipid metabolic disorder and reproductive dysfunction in PCOS mice,which may be associated with its suppressing endoplasmic reticulum stress by inhibiting the PERK/eIF2α/ATF4/CHOP pathway.
8.A practice guideline for therapeutic drug monitoring of mycophenolic acid for solid organ transplants.
Shuang LIU ; Hongsheng CHEN ; Zaiwei SONG ; Qi GUO ; Xianglin ZHANG ; Bingyi SHI ; Suodi ZHAI ; Lingli ZHANG ; Liyan MIAO ; Liyan CUI ; Xiao CHEN ; Yalin DONG ; Weihong GE ; Xiaofei HOU ; Ling JIANG ; Long LIU ; Lihong LIU ; Maobai LIU ; Tao LIN ; Xiaoyang LU ; Lulin MA ; Changxi WANG ; Jianyong WU ; Wei WANG ; Zhuo WANG ; Ting XU ; Wujun XUE ; Bikui ZHANG ; Guanren ZHAO ; Jun ZHANG ; Limei ZHAO ; Qingchun ZHAO ; Xiaojian ZHANG ; Yi ZHANG ; Yu ZHANG ; Rongsheng ZHAO
Journal of Zhejiang University. Science. B 2025;26(9):897-914
Mycophenolic acid (MPA), the active moiety of both mycophenolate mofetil (MMF) and enteric-coated mycophenolate sodium (EC-MPS), serves as a primary immunosuppressant for maintaining solid organ transplants. Therapeutic drug monitoring (TDM) enhances treatment outcomes through tailored approaches. This study aimed to develop an evidence-based guideline for MPA TDM, facilitating its rational application in clinical settings. The guideline plan was drawn from the Institute of Medicine and World Health Organization (WHO) guidelines. Using the Delphi method, clinical questions and outcome indicators were generated. Systematic reviews, Grading of Recommendations Assessment, Development, and Evaluation (GRADE) evidence quality evaluations, expert opinions, and patient values guided evidence-based suggestions for the guideline. External reviews further refined the recommendations. The guideline for the TDM of MPA (IPGRP-2020CN099) consists of four sections and 16 recommendations encompassing target populations, monitoring strategies, dosage regimens, and influencing factors. High-risk populations, timing of TDM, area under the curve (AUC) versus trough concentration (C0), target concentration ranges, monitoring frequency, and analytical methods are addressed. Formulation-specific recommendations, initial dosage regimens, populations with unique considerations, pharmacokinetic-informed dosing, body weight factors, pharmacogenetics, and drug-drug interactions are covered. The evidence-based guideline offers a comprehensive recommendation for solid organ transplant recipients undergoing MPA therapy, promoting standardization of MPA TDM, and enhancing treatment efficacy and safety.
Mycophenolic Acid/administration & dosage*
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Drug Monitoring/methods*
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Humans
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Organ Transplantation
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Immunosuppressive Agents/administration & dosage*
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Delphi Technique
9.Research Advances of Knowledge Extraction from Ancient Chinese Medicine Books
Ke ZHU ; Yikai LI ; Weihong LI ; Zhihui ZHAO ; Qiang XU
World Science and Technology-Modernization of Traditional Chinese Medicine 2025;27(11):3295-3303
Ancient Chinese medicine books are the foundation of traditional Chinese medicine inheritance,innovation,and development,and the vast amount of knowledge they contain is worthy of in-depth mining.However,if researchers only rely on manual sorting,research progress will inevitably be slow.To overcome this,previous studies have attempted to extract knowledge from ancient Chinese medicine books automatically with natural language processing technology,which has made certain progress in the last decade.In this paper,we first introduce the text data-oriented knowledge extraction technology,then review the research progress of existing technologies in the two tasks of entity recognition and entity relationship extraction of ancient Chinese medicine books.Finally,we analyze the shortcomings of this research field and recommend standardizing data annotation,expanding entity categories,and paying attention to procedural knowledge.This review aims to provide a reference for the mining and utilization of ancient traditional Chinese medicine books in the era of artificial intelligence.
10.Comprehensive Evaluation of Original Research Sodium-glucose Transporters 2 Inhibitors Based on A Quick Guideline for Drug Evaluation and Selection in Chinese Medical Institutions(the Second Edition)
Cheng JI ; Bing ZHOU ; Pengli ZHU ; Chao WANG ; Xunlong ZHONG ; Aizong SHEN ; Yi ZHANG ; Ruolun WANG ; Weihong GE ; Zhanjun DONG ; Zhigang ZHAO
Herald of Medicine 2025;44(2):251-258
Objective In order to provide a better reference and basis for the selection of reasonable hypoglycemic drugs for clinical treatment,the study conducted a comprehensive clinical evaluation of the innovator sodium-glucose transporters 2(SGLT-2)inhibitors,based on A Quick Guideline for Drug Evaluation and Selection in Chinese Medical Institutions(the Second Edition).Methods The real-world studies,randomized controlled trials,Meta-analysis/systematic review,drug clinical use guidelines,expert consensus and drug description evaluation evidence were collected,and the included drugs were assigned and evaluated from five dimensions:pharmaceutical characteristics,efficacy,safety,economy and other attributes.Results All SGLT-2 inhibitors had evaluation scores above 75,with dagaglifloztin tablets having the highest score of 84.6,and canaglifloztin having the lowest score of 75.1.Conclusions All five original SGLT-2 inhibitors showed good clinical utility,the difference is that the participating original drugs have different advantageous intervals in clinical use.The results show that dagliflozin has the most ideal clinical utility,and its clinical use should be safer and more effective.Due to the short time on the market and insufficient evidence-based reasons,the advantages of clinical use of proline hemegliflozin are not obvious compared with other evaluated drugs.

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