Objective: To understand the epidemiological and etiological characteristics of food poisoning event occurred in a school in Hangzhou, Zhejiang, so as to provide reference for the scientific management of related emergencies. Methods: By determining the nature of the event through epidemiological investigation, a case control study was carried out to spot suspicious food in May 2024. The hygienic investigation was conducted to find out possible pollution links and factors, patients and canteen practitioners anal swab, canteen retention samples, catering link daub and other specimens were collected ,for rapid pathogen screening. And the suspected pathogen Clostridium perfringens (CP) were isolated and identified according to the screening results, and toxin gene detection and whole genome sequencing and cluster analysis of CP isolated strains were carried out. Results: The incident resulted in 45 people experiencing gastrointestinal symptoms, such as diarrhea and abdominal pain. The suspicious food was tomato scrambled eggs and corn ribs provided by the student canteen for lunch on May 29. A hygiene investigation found that there was a risk of contamination in the food processing, preparation and storage. A total of 46 anal swabs and 10 canteen retention samples were positive for CP 16 S, 59 strains of CP were isolated from 27 samples, 10 cases and 1 practitioner isolate were positive for CPE ( cpe ) (F mode), and their whole genome evolution analysis was conducted based on the same source. Conclusions The food poisoning event is caused by CP infection carrying CPE ( cpe ) (F mode), and the possible sources of outbreak are the carriers of the CP by employees. It is recommended that cafeteria staff strengthen training on common foodborne diseases and conduct regular monitoring of pathogens.

Objective To explore the pain catastrophizing (PC) level of pain in patients with multiple fractures and its influencing factors. Methods A convenience sampling method was used to investigate 156 patients with multiple fractures in the orthopedic trauma department of the First Affiliated Hospital of Nanjing Medical University. The questionnaire included a general information survey, a Digital Pain Rating Scale, PC scale, Positive and Negative Emotion Scale, and Social Rating Scale. Results The average PC score of patients with multiple fractures was (23.22±12.05), with 27 patients (17.20%) reaching the PC level. The average score of the Digital Pain Rating Scale was (6.30±1.49), the score of the Positive Emotion Scale was (27.92±6.06), the score of the Negative Emotion Scale was (23.18±7.00), and the total score of the Social Rating Scale was (27.90±4.61). The results of multiple linear regression analysis showed that pain score, negative emotion level, and social support level had predictive effects in PC among patients with multiple fractures. Conclusion The incidence of PC among patients with multiple fractures is at a moderate to high level. Patients with high pain scores, high negative emotion scores, and low social support are more likely to develop PC.

Objective To study the effect of clopidogrel on different CYP2C19 genotypes and platelet reactivity in acute cerebral infarction patients with antiplatelet aggregation.Methods Four hundred and seventy-four cases of cerebral infarction patients in Beijing Tiantan Hospital Affiliated to Capital Medical University from April 2015 to April 2016 were collected.CYP2C19 genotype was determined,and the genotype was divided into the wild type group,the heterozygous type group and the mutant homozygous group.Platelet aggregation inhibition rate(ADP%) and platelet reactivity index induced by ADP were detected.Patients were divided into clopidogrel resistance group(group CR) and non resistant group according to whether ADP% was less than 30.SPSS 16.0 statistical software was used for statistical analysis,the comparison between groups using independent samples t test,chi square test and multivariate analysis using Logistic regression analysis,when P<0.05 difference was statistically significant.Results Among the 474 patients,204 cases(43.04%) were divided into wild-type group,and 204(43.04%) and 66(13.92%) were divided into the mutant heterozygous group and mutant homozygous group.In Chi square test analysis,clopidogrel resistance group and non resistance group CYP2C19 genotype distribution was significantly different(χ2=6.658,P=0.036).CR group angle(α) values((68.87±5.47)°) and MA((66.77±6.25) mm) were higher than that of CS group ((66.55±6.05)° and (63.30±5.66) mm,t=2.199,3.387,P=0.029,0.001).The multivariate logistic regression analysis showed that OR of angle level was 1.028,95%CI was 0.929-1.137 (P=0.595);OR of Ma level was 1.561,95%CI was 0.785-0.970 (P=0.012).Conclusion The effect of clopidogrel on platelet aggregation in patients with acute cerebral infarction is decreased by CYP2C19 gene mutation.CYP2C19 mutant allele is a risk factor for clopidogrel resistance.Angle (α) value and MA value are the risk factors for the diagnosis of CR in the patients with acute cerebral infarction,and the risk of clopidogrel resistance increased when the patients′ Angle (α) value and the value of MA increased.MA value as a predictor of CR and the screening tool has a certain value.

Objective To explore the effects of nurse-physician collaboration model on anxiety, depression and quality of life (QOL)of patients undergoing concurrent chemo-radiotherapy.Methods A total of 1 80 eligible patients from December 201 3 to December 201 4 were randomly divided into study group (n =96) and control group (n =84).The patients of study group received nurse-physician collaboration nursing,while the patients of control group received routine nursing.The self-rating anxiety scale (SAS ),self-rating depression scale (SDS ) and European organization for research and treatment of cancer quality of life questionnaire-3.0 (EORTC QLQ-C30)were used to investigate the differences between groups before and after intervention.Results Anxiety and depression in study group were better than those in control group after treatment,and the difference was statistically significant (P <0.05).Overall health,emotional function,social function,cognitive function,role function,pain,insomnia and breathing difficulties were better in study group than those in control group after treatment (P <0.05).Conclusions Nurse-physician collaboration model can improve the anxiety,depression and QOL of patients receiving chemoradiotherapy.

Objective To investigate the immune cell population change during the anesthesia process in patients undergoing craniotomy surgery. Methods A total of 18 patients undergoing craniotomy who had an inhalational general anesthetic were selected as our subjects. Blood samples were collected before anesthesia (T0)and 30 min(T1),45 min(T2),60 min(craniotomy operated,T3),120 min(tumor resected,T4)and 240 min(T5)after anesthesia. Blood cell counts including neutrophils,monocytes and lymphocytes were determined along with lymphocyte subpopulations( T cells,inducer and helper T cells,suppressor and cytotoxic T cells,NK cells,B cells ). Data were analyzed by SPSS 13. 0 software. Results In terms of the immune cell during neuroanesthesia,induction neutrophils,monocytes and lymphocytes decreased significantly from( 4. 50 ± 2. 00 ) × 109/L(,0. 51 ± 0. 22)× 109/L,(1. 90 ± 0. 70)× 109/L to(3. 10 ± 1. 50)× 109/L,(0. 32 ± 0. 17)× 109/L, (1. 10 ± 0. 50)× 109/L at the 30 min after anesthesia,and the differences were significant( P﹤0. 05). It also showed that Ts and NK cells decreased significantly from( 0. 55 ± 0. 29 )× 109/L,( 0. 32 ± 0. 14 )× 109/L to (0. 33 ± 0. 22 )× 109/L,( 0. 10 ± 0. 08 )× 109/L at the 30 min after anesthesia,and the differences were significant( P﹤0. 05 ). Conclusion Special and non special immune system are inhibited during craniotomy, especially at the early anesthesia. Among the inhibited immune cells,neutrophils recover early and followed Ts and NK cells.

Objective To analyze the prevalence of human papilloma virus(HPV) and the relationship between HPV and vaginal environment in puerperium women.Methods One thousand and twenty-nine cases puerperium women were detected for HPV subtype by using nucleic acid flow-through hybridization.Patients with HPV positive had been considered as observe group and the rest as control.The prenatal infection of HPV of HPV-DNA positive and negative postpartum puerperium women, and the vaginal cleanliness of prenatal and postpartum were analyzed.Results In 1 029 cases puerperium women, the total HPV-DNA positive rate was 10.30％(106/1029) ,and high risk infection rate was 95.65％ (110/115).The rate of HPV positive before pregnant in HPV positive group (46.51％, 40/86) was higher than that in HPV negative group (9.09％, 10/110).There was significant difference of vaginal environment in the two groups (x2 =36.567, P＜0.05).In HPV-DNA positive and negative women during the puerperium vaginal cleaning degree of Ⅰ , Ⅱ ratio prenatal respectively were 56.98％ (49/86) and 76.36％ (84/110), and the difference was significant (x2 =8.317, P ＜0.05).Postpartum to 45.35％ (39/86) and 60.00 (66/110), and the difference was significant (x2 =3.941, P＜0.05).Conclusion The HPV infection of pregnant women are easy to getagain.There is relevance between HPV infection and vaginal environment.

Objective To investigate the effect of bone marrow mesenchymal stem cells (BMSCs) transplantation on angiogenesis and functional recovery after focal cerebral ischemia in rats.Methods BMSCs were isolated and cultured using the whole bone marrow adherent method,and conducted phenotypic identification using flow cytometry analysis of surface positive antigen of CD29,CD90 and the negative antigen of CD34,CD45.Rats were subjected to middle cerebral artery occlusion (MCAO) for 90 minutes,and divided into three groups randomly,the sham group,model group and BMSCs group.24 hours after cerebral ischemia,rats were injected with 1 ml BMSCs solution (1 × 106 cells/ml) or PBS via the tail vein.The modified neurological severity score(mNSS) test,the corner test and the adhesive tape test were used to evaluate sensorimotor function on the 1,7,14 and 28 days after ischemia.Infarcted volume was detected by toluidine blue staining,and the numbers of vWF positive microvessels and vascular endothelial growth factor (VEGF) positive cells in the ischemic boundary were determined by immunofluorescence.Results By flow cytometric analysis,the cell phenotype of passage 3 BMSCs showed that CD29,CD90,CD34 and CD45 were 98.3％,97.4％,0.2％ and 4.8％,respectively.Compared with the model group,BMSCs significantly reduced the score of mNSS(P＜0.01),the number of right turn of corner test(P＜0.05),latency of removal adhesive tape(P＜0.05) and the infarcted volume (P＜0.01).The numbers of vWF positive vesscls and the VEGF positive cells were (42.97±8.64)/mm2 and (54.83± 10.66)/mm2 at the boundary zone in model group 14 days after ischemia,respectively.BMSCs significantly increased the numbers of vWF positive vessels ((69.43± 7.29)/mm2) and VEGF positive cells ((78.70±6.16)/mm2,P＜0.01).Conclusion BMSCs can improve the functions of cerebral lesions after cerebral ischemia,which may be associated with the enhanced angiogenesis and VEGF expression in the ischemic boundary.