Objective To analyze the cases of brucellosis in non-occupational population in Tongxiang City of Zhejiang Province,and to provide a scientific basis for making strategies in brucellosis prevention and control.Methods Rose bengal plate agglutination test (RBPT) and serum tube agglutination test (SAT) were used to detect brucellosis in the general population who were closely contacted with cases in non-occupational groups and who had brucellosis-related symptoms.If the pathogen result was positive,Brandt strain type identification should be done to analyze the reasons for non-occupational population who infected with brucellosis.Results A total of 7 cases of brucellosis were detected in the non-occupational groups,which accounted for 14.58％ of the total number of cases (7/48).Misdiagnosis was common,seasonal incidence was not obvious,transmission route and population infected were diverse.Conclusion The incidence rate of brucellosis is an upward trend,public brucellosis prevention knowledge should be strengthened,and training in diagnostic and treating skills for medical professionals should be provided.

Objective To discuss the clinical effects of locking proximal humerus plate (LPHP)for humeral proximal fractures in elderly patients.Methods A total of 84 elderly patients with humeral proximal fractures were retrospectively analyzed.Patients were randomly divided into LPHP group and control group (n=42,each group).Patients in LPHP group were treated with open reduction and internal fixation using LPHP.Patients in control group were treated with open reduction and Kirschner wire fixation.All patients were followed up for 1 year and the shoulder joint function was evaluated.Results There were no significant differences in bleeding volume and the wound healing time between LPHP group and control group [(189.2±27.5) ml vs.(177.6±28.2) ml,(102.3±6.2) days vs.(99.9±6.8) days,t=1.78,1.33,P=0.079,0.105,respectively].One year after the follow-up,there were 22 cases (52.4％,22/42) with excellent clinical evaluation,18 cases (42.9％,18/42) with good clinical evaluation and 2 cases (4.8％,2/42) with poor clinical evaluation in LPHP group,and 15 cases (35.7％,15/42) with excellent clinical evaluation,22 cases (52.4％,22/42) with good clinical evaluation,and 5 cases (11.9％,5/42) with poor clinical evaluation in control group.There was a significant difference in the evaluation rate of excellent and good clinical efficacy between in LPHP group and in control group (95.2 ％ vs.88.1 ％,x2 =3.18,P 0.028).Conclusions The internal fixation using LPHP has a good clinical effect in elderly patients with humeral proximal fractures,and it can well improve the recovery of shoulder joint function.

Abstract On August 11, 2022, Tongxiang Center for Disease Control detected a case of brucellosis, and the case was not engaged in related work. Case finding and risk factor investigation were immediately conducted to trace the source of infection. It was revealed that the case sold aquatic products at a farmer's market and frequently picked up goods at a seafood warehouse adjacent to a lamb slaughtering site. There was a potential risk of infection due to indirect contact with slaughtered lambs or contaminants. Serological tests were conducted on 9 employees of the slaughtering site and 48 residents nearby, and the brucellosis cases diagnosed in hospitals in the same area were searched. A total of 11 brucellosis cases were identified, including 9 confirmed cases and 2 asymptomatic infections. There were 2 cases of slaughtering workers and 9 cases of non-occupational individuals from the surrounding area of the slaughtering site. Brucella melitensis biovar 3 were isolated from a slaughtering worker and a non-occupational individual. The slaughtered lambs primarily came from northern regions such as Inner Mongolia and Heilongjiang. It was concluded that it was a cluster caused by Brucella melitensis biovar 3 and spread through direct or indirect contact with imported infected lambs or contaminated environments from a lamb slaughtering site. It is suggested to strengthen the quarantine of imported sheep, legally shut down non-compliant lamb slaughtering sites, implement designated slaughtering and enhance occupational protection.

Objective To investigate the epidemiological characteristics of Brucella aggregation of disease outbreaks, and explore the causes and possible routes of transmission in Tongxiang City for proposing prevention and control measures.Methods A case investigation was done to the first case of bovine brucellosis, while search of new case was carried out in the population.Epidemiological survey was carried out in accordance with the case study form from Chinese Center for Disease Control and Prevention that developed the unified form, at the same time, survey of risk factors were carried out.According to the principle of informed consent, blood samples were collected, brucellosis rose bengal plate agglutination test (RBPT) and tube agglutination test (SAT) were used, and positive specimens were identified by Brucella culture.Brucellosis diagnosis was based on Brucellosis Diagnostic Criteria (WS 269-2007).Results The first case was a male Fifty-six years old wine salesman from the farmers market.Serum of the patient was (+) in RBPT test, and 1 : 400 (++) in SAT test.Cattle Brucella was check out by blood culture.Totally 66 human serum samples from the case search in key groups were tested, three people were detected seropositive but Brucella culture result was negative.Three cases were determined latent infection who had contacted beef sales staff.Conclusions The survey has shown that it is possible to get infected through contact with respiratory, skin, mucous membranes of Brucella infected beef or contaminated environment.Epidemic form should be concerned of non-professional personnel who are infected with different isoforms of brucellosis.The training of clinicians should be strengthened to improve their diagnosis and treatment technology.Health education should also be carried out to raise awareness of key population of disease prevention.

Objective:To establish an HPLC method for the determination of flibanserin and its related substances. Methods: A Phenomenex Luna C18 column(150 mm × 4. 60 mm, 5 μm) was used, the mobile phase consisted of 0. 02 mol·L-1 potassium di-hydrogen phosphate solution (pH was adjusted to 6. 0 by sodium hydroxide)-methanol and acetonitrile (4 :1), the flow rate was 1. 0 ml·min-1 , the column temperature was 30℃, the detection wavelength was 260 nm, and the injection volume was 10 μl. Results:Flibanserin and all the related compounds could be well separated. The linear range was 20-500 μg·ml-1(r=0. 9998), the average recovery was 100. 0%(RSD=0. 90%,n=9). The content of the main component in 4 batches of samples was 99. 6%, 99. 8%, 100. 4% and 99. 4%, respectively. The single impurity limit was set at 0. 1% and the limit of total impurities was set at 0. 5%. Con-clusion:The method is specific and accurate, which can be applied in the determination of content and related substances of fliban-serin.

Objective:To establish an HPLC method for the determination of flibanserin and its related substances. Methods: A Phenomenex Luna C18 column(150 mm × 4. 60 mm, 5 μm) was used, the mobile phase consisted of 0. 02 mol·L-1 potassium di-hydrogen phosphate solution (pH was adjusted to 6. 0 by sodium hydroxide)-methanol and acetonitrile (4 :1), the flow rate was 1. 0 ml·min-1 , the column temperature was 30℃, the detection wavelength was 260 nm, and the injection volume was 10 μl. Results:Flibanserin and all the related compounds could be well separated. The linear range was 20-500 μg·ml-1(r=0. 9998), the average recovery was 100. 0%(RSD=0. 90%,n=9). The content of the main component in 4 batches of samples was 99. 6%, 99. 8%, 100. 4% and 99. 4%, respectively. The single impurity limit was set at 0. 1% and the limit of total impurities was set at 0. 5%. Con-clusion:The method is specific and accurate, which can be applied in the determination of content and related substances of fliban-serin.

Objective To study the feature of regional cerebral metabolism rate of glucose (rCMRglc) in patients with Alzheimer’s disease (AD) and the value of positron emission tomography (PET) scanning in diagnosis of AD. Methods 13 AD patients and 13 health controls ,Who matched in age,sex and education years,were scanned with PET. Results (1) Watching by naked eyes,there was mild decreasing of rCMRglc at parietal lobe in healthy elders. While in AD patients,there was widely decreasing of cerebral metabolism rate of glucose. The most significant region was parietal lobe, the next was temporal lobe,and the last was frontal lobe. (2) Detecting with PET and dealing with statistical parametric mapping (SPM) of 99 software,there was more significant decreasing of rCMRglc in regions 7,23,30,31 of cingulate gyrus,region 39 and 40 of pario-occipital lobe,region 20 of temporal lobe and region 6,8,9 of frontal lobe in AD group( P

Objective:To investigate the online learning situation of students in Chongqing Medical University during the COVID-19 epidemic, analyze the advantages and disadvantages of online learning, and provide reference for the improvement of online teaching.Methods:Random sampling was adopted to conduct online questionnaire survey among undergraduates of Chongqing Medical University in the form of anonymous questionnaire. SPSS 22.0 was used for chi-square test.Results:There were significant differences in learning outcomes between students living in different places during the epidemic period ( P<0.05). The results showed that 34% of students thought the advantages of online learning were "freedom of learning time", "freedom of learning place", "abundant resources and available to watch videos repeatedly". According to the analysis of disadvantages of online learning, 39% of the students believed that online learning had "poor personal self-control ability to ensure learning efficiency", "no sense of reality in the experimental courses", "lack of learning atmosphere, decrease of the learning motivation", "tedious learning process, requiring constant software upgrading and replacement." Conclusion:Firstly, for special periods, we should unify online learning platforms in the whole university. Then, we should strengthen the publicity of online courses. Finally, teachers should drive the classroom atmosphere during the online teaching and improve students' learning efficiency.

Objective To investigate the status of health-promoting lifestyle for primary nurses in traditional Chinese medicine ( TCM) hospitals and analyze its influencing factors. Methods Nurses′ health-promoting lifestyle scale and self-designed questionnaire were used to investigate 527 primary nurses in three TCM hospitals affiliated to Zhejiang Chinese Medical University. Results The score of primary nurses′ health-promoting lifestyle was (60.38±17.71) points. The score of 5 dimensions from high to low were: occupational safety (68. 14%), self-actualization (62.77%), Interpersonal support development (60.99%), balanced diet (58. 70%), exercise and health care (34.32%). Regression analysis showed that age and health condition were the most important influencing factors for nurses′ health-promoting lifestyle(P<0.05).Conclusions Health-promoting lifestyle of primary nurses in TCM hospitals is not good, and there is a big space for improvement. Hospital managers should attach great importance to the improvement of primary nurses′ health-promoting lifestyle, and improve nurses′health-promoting lifestyle by targeted intervention, in order to improve the general nursing quality.