Objective: To analyze the epidemiological characteristics and influencing factors of severe fever with thrombocytopenia syndrome (SFTS) in Zhejiang Province from 2019 to 2023, so as to provide the reference for strengthening SFTS prevention and control. Methods: Data on laboratory-confirmed SFTS cases in Zhejiang Province from 2019 to 2023 were collected through the Infectious Disease Reporting Information System of Chinese Disease Prevention and Control Information System. Meteorological data, geographic environment and socioeconomic factors during the same period were collected from the fifth-generation European Centre for Medium-Range Weather Forecasts, Geospatial Data Cloud, and Zhejiang Statistical Yearbook, respectively. Descriptive epidemiological methods were used to analyze the epidemiological characteristics of SFTS from 2019 to 2023, and a Bayesian spatio-temporal model was constructed to analyze the influencing factors of SFTS incidence. Results: A total of 578 SFTS cases were reported in Zhejiang Province from 2019 to 2023, with an annual average incidence of 0.23/105. The peak period was from May to July, accounting for 52.60%. There were 309 males and 269 females, with a male-to-female ratio of 1.15∶1. The cases were mainly aged 50-<80 years, farmers, and in rural areas, accounting for 82.53%, 77.34%, and 75.43%, respectively. Taizhou City and Shaoxing City reported more SFTS cases, while Shaoxing City and Zhoushan City had higher annual average incidences of SFTS. The Bayesian spatio-temporal interaction model showed good goodness of fit. The results showed that mean temperature (RR=1.626, 95%CI: 1.111-2.378) and mean wind speed (RR=1.814, 95%CI: 1.321-2.492) were positively correlated with SFTS risk, while altitude (RR=0.432, 95%CI: 0.230-0.829) and population density (RR=0.443, 95%CI: 0.207-0.964) were negatively correlated with SFTS risk. Conclusions SFTS in Zhejiang Province peaks from May to July. Middle-aged and elderly people and farmers are high-risk populations. Taizhou City, Shaoxing City, and Zhoushan City are high-incidence areas. Mean temperature, mean wind speed, altitude, and population density can all affect the risk of SFTS incidence.

Objective: To investigate the epidemiological characteristics and influencing factors for hand, foot, and mouth disease (HFMD) incidence in Binzhou City, Shandong Province, so as to provide the evidence for developing HFMD prevention and control strategies. Methods: Data on HFMD cases in Binzhou City from 2017 to 2023 were collected through the Infectious Disease Reporting Information System of Chinese Disease Prevention and Control Information System. Meteorological data during the same period were collected from the fifth-generation European Centre for Medium-Range Weather Forecasts. The incidence of HFMD was calculated, and the temporal, population, and regional distribution characteristics of HFMD were analyzed descriptively. Bayesian spatiotemporal model was used to analyze the influencing factors for HFMD incidence Results: From 2017 to 2023, a total of 17 314 HFMD cases were reported in Binzhou City, with an annual average reported incidence of 62.57/105. The incidence peak was from June to September, and a secondary peak appeared from October to November in some years. The annual average reported incidences were higher in Bincheng District and Yangxin County, which were 107.41/105 and 72.95/105, respectively. There were 10 461 males and 6 853 females, with a male-to-female ratio of 1.53∶1. The age was mainly 1-3 years, with 11 713 cases accounting for 67.65%. Bayesian spatiotemporal model analysis showed that the risk of HFMD incidence had obvious seasonality and regionality. From 2017 to 2019 and in 2021, the peaks occurred in weeks 24-27 and 44-47 each year, with RR values of 1.771-6.747. From 2022 to 2023, it showed a single peak distribution. The RR values were all >1 in Bincheng District, Yangxin County, and Huimin County. Average temperature (RR=1.092, 95%CI: 1.080-1.105) and average relative humidity (RR=1.015, 95%CI: 1.008-1.022) were positively correlated with the risk of HFMD incidence, while average wind speed (RR=0.749, 95%CI: 0.655-0.856) was negatively correlated with the risk of HFMD incidence. Conclusions HFMD in Binzhou City mainly occurs in summer and in central areas. Males and children aged 1-3 years are high-risk populations. The risk of HFMD incidence increases with the increase of average temperature and average relative humidity, and decreases with the increase of average wind speed.

Objective:To evaluate the efficacy and safety of vedolizumab (VDZ) monoclonal antibody in maintenance therapy for ulcerative colitis (UC) .Methods:A retrospective case control study was conducted, including 84 patients with active UC undergoing VDZ therapy for an average of (22±8) weeks in the Department of Gastroenterology, the Second Affiliated Hospital of Zhejiang University School of Medicine from December 2020 to September 2023. These patients achieved a response or remission by (22±8) weeks and continued follow-up until (54±8) weeks. They were divided into effective and ineffective groups based on whether they achieved clinical remission by (54±8) weeks after using VDZ; those who required optimized treatment with shortened injection intervals were included in the ineffective group. Baseline clinical data, medication history and endoscopic imaging data were recorded. The clinically modified Mayo score, Mayo endoscopic score, and other assessments were used to evaluate UC disease activity. Adverse reactions related to treatment were also recorded to assess the efficacy of VDZ treatment up to (54±8) weeks was assessed and key factors affecting clinical remission of the disease were analyzed.Results:Among the 84 UC patients with followed up to (54±8) weeks, 47 cases (55.95%) achieved clinical remission and were classified as the effective group, while 37 cases (44.05%) did not achieve clinical remission and were classified as the ineffective group. The endoscopic remission rate in the effective group was 68.09% (32/47), and the mucosal healing rate was 36.17% (17/47). Joint pain occurred in 2.38% of patients, hepatic dysfunction in 3.57%, and one patient died from leukemia following a COVID-19 infection during the maintenance therapy period.Conclusion:VDZ has a certain efficacy in the continuous treatment of UC patients and in maintaining clinical and endoscopic remission, with generally high overall safety and a low incidence of adverse reactions.

Objective:To evaluate the efficacy and safety of vedolizumab (VDZ) monoclonal antibody in maintenance therapy for ulcerative colitis (UC) .Methods:A retrospective case control study was conducted, including 84 patients with active UC undergoing VDZ therapy for an average of (22±8) weeks in the Department of Gastroenterology, the Second Affiliated Hospital of Zhejiang University School of Medicine from December 2020 to September 2023. These patients achieved a response or remission by (22±8) weeks and continued follow-up until (54±8) weeks. They were divided into effective and ineffective groups based on whether they achieved clinical remission by (54±8) weeks after using VDZ; those who required optimized treatment with shortened injection intervals were included in the ineffective group. Baseline clinical data, medication history and endoscopic imaging data were recorded. The clinically modified Mayo score, Mayo endoscopic score, and other assessments were used to evaluate UC disease activity. Adverse reactions related to treatment were also recorded to assess the efficacy of VDZ treatment up to (54±8) weeks was assessed and key factors affecting clinical remission of the disease were analyzed.Results:Among the 84 UC patients with followed up to (54±8) weeks, 47 cases (55.95%) achieved clinical remission and were classified as the effective group, while 37 cases (44.05%) did not achieve clinical remission and were classified as the ineffective group. The endoscopic remission rate in the effective group was 68.09% (32/47), and the mucosal healing rate was 36.17% (17/47). Joint pain occurred in 2.38% of patients, hepatic dysfunction in 3.57%, and one patient died from leukemia following a COVID-19 infection during the maintenance therapy period.Conclusion:VDZ has a certain efficacy in the continuous treatment of UC patients and in maintaining clinical and endoscopic remission, with generally high overall safety and a low incidence of adverse reactions.

Malnutrition is highly prevalent in patients with inflammatory bowel disease, which can be life-threatening when refeeding syndrome occurs. This article reports a patient with Crohn′s disease admitted to the Second Affiliated Hospital of Zhejiang University School of Medicine who developed refeeding syndrome due to long-term malnutrition and complicating lymph node tuberculosis. After the discussion, diagnosis and treatment of multidisciplinary team including Departments of Gastroenterology, Nutrition, Colorectal Surgery and Oncology, and Pathology, the patient was improved significantly.

Malnutrition is highly prevalent in patients with inflammatory bowel disease, which can be life-threatening when refeeding syndrome occurs. This article reports a patient with Crohn′s disease admitted to the Second Affiliated Hospital of Zhejiang University School of Medicine who developed refeeding syndrome due to long-term malnutrition and complicating lymph node tuberculosis. After the discussion, diagnosis and treatment of multidisciplinary team including Departments of Gastroenterology, Nutrition, Colorectal Surgery and Oncology, and Pathology, the patient was improved significantly.

Objective:To explore the correlation between occupational stress and the current working environment of clinical nurses.Methods:The cluster sampling method was used to select clinical nurses from First Affiliated Hospital of Xi'an Jiaotong University from March to September 2019 as the research objects. The research tools included nurses' general condition questionnaire, Occupational Stress Inventory Revised edition (OSI-R) and Profession Practice Environment (PPE) Scale. A total of 560 questionnaires were distributed and 540 valid questionnaires were recovered.Results:The Occupational Role Questionnaire (ORQ) score of 540 clinical nurses was (152.09±20.65) , the score of Personal Strain Questionnaire (PSQ) was (104.04±17.04) , the score of Personal Resources PPE Scale Questionnaire (PQR) was (125.84±19.75) and the total average score of PPE Scale was (3.00±0.28) . Pearson correlation analysis showed that the ORQ and PSQ scores of nurses were negatively correlated with the scores of the PPE Scale, and the PQR scores of nurses were positively correlated with the scores of PPE Scale ( P<0.05) . Conclusions:The overall performance of nurses is moderate occupational stress, the sense of occupational stress of nurses is negatively correlated with the working environment, and the coping resources of occupational stress are positively correlated with their professional working environment. Managers should take targeted measures to intervene to improve the professional working environment of nurses, reduce the level of occupational stress and guide nurses to improve their professional coping skills.

Objective: To establish a method for the determination of aluminum in blood, and to detect the aluminum content in the blood of occupational aluminum workers. Methods: The morning blood of the aluminum workers was collected in an anticoagulation tube, and the supernatant was centrifuged. The supernatant was diluted with 4% nitric acid containing 1% Triton for 24 h at room temperature, and the supernatant was centrifuged. The supernatant was filtered and the blood aluminum concentration was measured by inductively coupled plasma mass spectrometry and quantified by external standard method. Results: The detection limit of ICP-MS method was 0.39 μg/L, the linear range was 0-160 μg/L, the recoveries were 98.24%-99.65%, and the precision was 0.19%-0.28%. The recoveries of graphite furnace atomic absorption spectrophotometry (GFAAS) were 97.17%-111.18%, and the precision was 0.35%-0.44%. The average blood aluminum concentration of aluminum workers in the normal control group was (19.87±10.65) μg/L. The average blood aluminum concentration of aluminum workers in the expose group was (31.12±11.43) μg/L. Conclusion The method of ICP-MS for the determination of aluminum concentration in blood has a simple pretreatment process, high recovery rate, low detection limit and high precision, which is suitable for popularization.

Objective To investigate the occurrence of postoperative healthcare-associated infection(HAI)in pa-tients with hepatobiliary malignant tumor,explore the related risk factors,so as to provide the basis for taking ef-fective prevention and control measures.Methods The occurrence of postoperative HAI in patients with hepatobili-ary malignant tumor in a hospital from January 2012 to December 2014 were retrospectively analyzed,risk factors for postoperative HAI were analyzed through reviewing and collecting patients’medical data.Results A total of 302 patients were investigated,42 (13.91 %)developed postoperative HAI,no multiple site infection occurred,the main infection site was deep surgical site (n=10,23.81 %),followed by lower respiratory tract (n=9,21 .43%) and digestive system (n=7,16.67%).Of 42 infection cases,38(90.48%)were sent specimens for pathogenic cul-ture,36 pathogenic strains were isolated,31 (86.11 %)of which were gram-negative bacteria,and 5 (13.89%) were gram-positive bacteria.Multivariate logistic analysis showed that operation duration≥2 hours (OR =1 .48), overweight (or obesity)(OR=1 .40),and preoperative radiotherapy (OR=2.98)were independent risk factors for postoperative HAI in patients with hepatobiliary malignant tumor (all P <0.05).Conclusion Incidence of postoper-ative HAI is high in patients with hepatobiliary malignant tumor,risk factors are long length of operation,over-weight (or obesity),and preoperative radiotherapy,effective prevention and control measures against risk factors should be taken.

OBJECTIVETo investigate the effect of aluminum exposure on neuronal apoptosis of rats hippocampus and the correlation of and synaptic plasticity.

METHODSThere were 40 SPF grade SD rats which were randomly divided into four groups: the control group, the low dose group, the medium dose group and the high dose group, 10 rats in each group. The rats were daily gavaged with aluminum lactate for 30 days. The hippocampal fEPSPs in rat was measured by electrophysiological grapher and the neuronal apoptosis in hippocampus was detected by Flow cytometer. In addition, the relative expression of gene which includes caspase-3, 8, 9 was measured by Real-time PCR.

RESULTSCompared to the control group, the average of fEPSPs which after HFS 10, 20, 30, 40, 50, 60 min was decreased at different time point in the low dose group, the medium dose group and the high dose group (P < 0.05). Compared with the control group, the rate of apoptosis was significantly increased in the medium dose group and the high dose group (P < 0.05). Compared to the control group, the relative expression of caspase-3 in the medium dose group and the high dose group was significantly increased in Real-time PCR (P < 0.05), and the relative expression of caspase-8 in the high dose group was significantly increased (P < 0.05).

CONCLUSIONAluminum exposure may induced neuronal apoptosis in rats, and then affect hippocampal synaptic plasticity.

Aluminum ; toxicity ; Aluminum Compounds ; toxicity ; Animals ; Apoptosis ; Caspase 3 ; metabolism ; Caspase 8 ; metabolism ; Hippocampus ; cytology ; drug effects ; Lactates ; toxicity ; Neuronal Plasticity ; drug effects ; Neurons ; cytology ; drug effects ; Rats ; Rats, Sprague-Dawley