Objective To understand the immigrants' recognition of schistosomiasis and their relevant behaviors in the South-North Water-Diversion Middle-line Project areas in Hubei Province.Methods The investigation objects were selected by the method of stratified sampling among immigrants in the project areas and were surveyed through oral interview and questionnaire.Results A total of 1 010 immigrants were investigated and 1 005 questionnaires were indentified as effective ones.The awareness rates of schistosomiasis and the correct rates of related behaviors among the immigrants were still not satisfying.Conclusions The immigrants' recognition of schistosomiasis and their relevant behaviors in South-North Water-Diversion Middle-line Project areas in Hubei Province still need to be improved through health education and other measures.

Objective: To construct gine expression plasmid and to purify the protein of fimbriae(FimA) of Porphyromonas gingivalis (P. gingivalis). Methods: The bacteria DNA was extracted from P. gingivalis by using commercial kit. FimA gene was cloned after PCR. Plasmid was constructed and transformed into competent cells. Optimal conditions of protein induction were chosen. The fusionprotein was purified by Glutathione S-Transferase affinity chromatography. Fusion protein was confirmed by Western blot method. Results: The highest protein expression by the constructed plasmid was obtained at the low temperature and high concentration after 12 hours induction. The protein was confirmed by Western blot. Conclusion: A highly purified P. gingivalis FimA protein was successfully obtained.

Objective:To explore the differences in bacterial community structure between proximal colon cancer (PC), distal colon cancer (DC), and rectal cancer (RC), and the values of featured microbiota in differentiating PC with tumor markers.Methods:This case-control study enrolled 85 newly diagnosed colorectal cancer patients, including 22 PC, 15 DC and 48 RC patients, and 8 colorectal adenoma patients from May 2019 to July 2022 at the Department of General Surgery, Anyang Oncology Hospital. The blood and fecal samples were collected before surgery and then subjected to biochemical tests for tumor markers and 16S rDNA tests, respectively. SPSS (27.0.1) was applied to perform the t-test, one-way ANOVA, Mann-Whitney U test, Kruskal-Wallis H test, and Chi-Squared Test. Also, the receiver operating characteristic curve (ROC) was plotted on tumor markers and/or f_Bacteroidaceae with SPSS software .Results:All groups had significant differences in the CA125 ( F=3.543, P<0.05), CA72-4 ( F=3.596, P<0.05), and serum tumor-associated materials (TAM) levels ( F=5.787, P<0.01). In PC group, the levels of CA125 [PC vs RC, (36.84±6.30) kU/L vs (12.73±4.21) kU/L, P<0.01] and CA72-4 [PC vs RC, (45.56±10.86) kU/L vs (3.30±7.63) kU/L, P<0.01] were significantly higher than that of the RC group, while the level of TAM was remarkably elevated in PC group than in RC group [PC vs RC, (124.84±5.19) U/ml vs (102.44±3.63) U/ml, P<0.001] and CRA group [PC vs CRA, (124.84±5.19) U/ml vs (95.39±8.42) U/ml, P<0.01]. The LEfSe analysis showed that the featured microbiota in the PC group included f_Bacteroidaceae, f_Neisseriaceae, f_Clostridiaceae_1, f_Spirochaetaceae, and so on. The largest area under the ROC belonged to the combination of TAM and f_Bacteroidaceae, which reached 0.845 (95% CI 0.747-0.944), with sensitivity being 0.857 and specificity being 0.815. Conclusions:There is heterogeneity in gut microbiota composition among PC, DC, RC, and CRA. The combination of gut microbiota and tumor biomarkers demonstrated good differentiating effects in proximal colon cancers.

A case of recurrent stroke with clopidogrel secondary prevention, CYP2C19 gene testing result of " clopidogrel slow metabolism" , platelet aggregation test result of " platelet aggregation significantly inhibited" as an example, the dialectical relationship among the above gene testing, platelet aggregation test, stroke recurrence were analyzed, and the choice of antiplatelet drugs was discussed.Clopidogrel gene testing has certain guiding significance for the secondary prevention of stroke patients.Platelet aggregation test results can not comprehensively evaluate the physiology and function of platelets in vivo.In order to find a more safe, effective and reasonable antiplatelet therapy, antiplatelet therapy should be further explored and optimized.

Objective We evaluated serum levels of 25hydroxyvitamin D（25（OH）D）and Creactive protein（CRP）in patients presenting acutely with Vestibular neuritis（VN）and healthy controls and investigated the possible correlation of serum 25（OH）D and CRP levels with VN.Methods A total of 46 consecutive patients diagnosed with VN within 7 days of symptom onset and 66 ageand sexmatched healthy controls in NO731 Hospital，between March 2019 and August 2020 were recruited. Demographic and clinical data，such as age，sex，height，weight，living habits，ongoing health problems，and medication history，for all subjects were recorded，and levels of 25（OH）D and CRP were measured and compared. 〖WT5”HZ〗Results〖WT5”BZ〗Serum levels of 25（OH）D were significantly lower in patients with VN than in controls（18.30± 6.19 vs. 22.43±5.23 ng/ml，P<0.001）.whereas serum levels of CRP were higher in patients with VN than in controls （15.86±8.37 vs. ng/ml，P<0.001）Regression analyses demonstrated that vitamin D and CRP were associated with VN，with an odds ratio of 1.187 （95%CI 1.046～1.093，P=0.001）and 1.223 （95%CI=1.10～1.36，P=0.000）.Conclusion VN is associated with evidence of an acute inflammatory response，we found that serum 25（OH）D and CRP may be associated with VN occurrence.

Objective To characterise the alterations of serum autoantibodies for cyclinB1,p62,Koc-IMP1 and survivin in the subjects with esophgeal and gastric cardia carcinoma and precancerous lesion and their expres-sions in the esophageal and gastric cardia cancer tissue.Methods Enzyme-linked immunoassay and tumor-associated antigen mini-array (consisting of five full-length recombinant proteins,including eyefinB1-p62-Koc,IMP1 and Survivin)were applied to determine the serum level of the autoantibodies of these antigens on 376 subjects with e-sephageal and gastric cardia carcinoma and precancerous lesions.At the same time,the expression of these antigens was detected by immunohistochemical method(ABC)on 13 patients with esophageal cancer and 16 with gastric car-dia cancer.Results All of the 5 antigens determined,the linear correlation Was observed for the detection frequency of cyclinB1,IMPI and p62 in esophageal carcinogenesis,and for p62 in gastric cardia multi-stage progression from normal to precancerous and cancerous lesions(P<0.05).The detection rale with single positive antoantibody im-munoreactivity for both esophageal and gastric cardia cancers were low.However.the positive detection mte for both esophageal and gastric cardia cancer increased apparently when the multiple positive markers were combined together for analysis,which increased tO 3～5 and 3～4 folds respectively.Furthermore,the difference in autoantibody immu-noreactive rate was significant with the lesion progressed from mild tO severe precancerous lesions and to cancer both in esophageal and gastric cardia cancers(P<0.05).The positive immunoreactions of the 5 antigens were detected in cancer tissues.The positive immunostaining rates for cyclinB1,Koc,IMP1 and Survivin both in esophageal and gastric cardia cancers were higher compared to their serllin positive rate of autoantibodies I P<0.05).Of the pa-tients with positive immunostaining in the two cancer tissues,the autoantibodies in the serum for the corresponding antigens could be detected in the same patient.Conclusion The production of the tumor-associated autoantibodies is related tO antigens.The screening rate through serum tumor-associated antigen mini-array for the patients with e-sophageal and gastric cardia carcinoma and precancerous lesions has been increased apparently with combined analy-sis of multiple autoantibodies than with single one.

Objective: To explore the clinical features and risk factors of hepatic injury due to immune checkpoint inhibitors (CPI) therapy in malignant tumor. Methods: Data of 112 patients (64 men and 48 women) who received CPI between January 2016 and March 2019 in Chinese Academy of Medical Sciences and Peking Union Medical College Shenzhen Hospital, and Huazhong University of Science and Techology Union Shenzhen Hospital were retrospectively collected. The median age of these patients was 60 years. Results: Hepatic adverse events were observed in 30 patients out of 112 patients (26.8%). Among them, the incidence of grade 3-5 hepatic adverse events were 7.14% (8/112). The median time of hepatic adverse event occurrence was 3 weeks (2-30) after undergoing therapy. The results of univariate and multivariate analyses showed that liver cancer was attributed to the CPI induced hepatitis (P<0.05). Patients with severe hepatic injury got almost complete resolution after receiving methlprednisolone for 4 to 6 weeks. Conclusion Live cancer is the risk factor of CPI-related hepatic adverse events.