ABSTRACT
【Objective】 To investigate the hepatitis E virus(HEV) infection among voluntary blood donors in Liuzhou, Guangxi. 【Methods】 Qualified blood donations in Liuzhou from October to November 2019 were tested for anti-HEV IgG and IgM and.HEV antigen. HEV RNA test was performed on samples positive for HEV antigen and/or anti-HEV IgM. and the test results were analyzed statistically. 【Results】 The seroprevalence rates of HEV antigen and anti-HEV IgG and IgM among 5 751 qualified donations were 0, 26.03% (1497/5 751), and 1.67% (96/5 751), respectively.None of the 91 anti-HEV IgM positive samples was positive for HEV RNA, whereas 60.41% of anti-HEV IgM positive samples were anti-HEV IgG positive. The HEV antibody prevalence varied significantly by gender, age, and nationality (P<0.05). 【Conclusion】 The prevalence of anti-HEV IgG / IgM among blood donors in Liuzhou was higher than that in other domestic regions. Significant increase in HEV antibody prevalence was observed among ethnic minorities, such as Miao and Dong, and age group of more than 45 years.Follow-up studies with larger sample size could be conducted to estimate potential risks of HEV transmission by blood transfusion, which may provide references for selective screening of HEV infection marker among high-endemic population.
ABSTRACT
Objective To investigate the protective effects of low-molecular heparin and urokinase on glomerular inflammation. Methods Forty 3-month-old female Wistar rats were randomly divided into five groups with 8 rats in each group: normal control (NC) group; lipopolysaccharide (LPS) group; LPS and tranexamic acid (LT) group; LPS, tranexamic acid and low-molecular heparin (LTH) group; and LPS, tranexamic acid and urokinase (LTU) group. Fibrin deposition and CD11b positive cells were identified by immunohistochemical staining. Western blotting was used to determine the ICAM-1 expression. Results No fibrin depositions and CD11b positive cells were found in glomeruli of rats in NC group. Compared with NC group, fibrin deposit (9.1%?1.6%), CD11b positive cell (11.2?2.1) and ICAM-1 expressions (0.23?0.09) were significantly increased in L group (P0.05). Conclusion Both low-molecular heparin and urokinase can effectively decrease fibrin deposits and alleviate inflammation.