Hepatitis E is caused by hepatitis E virus （HEV）, which has been classified into four genotypes. Genotypes 3 and 4 are regarded as zoonotic pathogens. Accumulating researches indicate that genotype 4 is the main HEV...Hepatitis E is caused by hepatitis E virus （HEV）, which has been classified into four genotypes. Genotypes 3 and 4 are regarded as zoonotic pathogens. Accumulating researches indicate that genotype 4 is the main HEV strain circulating in China, and there are high levels of seropositive pigs and human in some provinces of China. In this study, serum samples from pigs and from human occupationally exposed to pigs were obtained from pig farms in Guangdong Province, in subtropical southern China, in order to investigate for the first time the prevalence of anti-HEV immunoglobulin G （IgG） in the region. Antibodies against HEV were detected by Enzyme-Linked Immunosorbent Assay （ELISA） using a commercially marketed kit. The results showed that high numbers of pigs （74/94; 78.7%） and human （50/94; 53.2%） from three pig farms in Guangdong Province were positive for anti-HEV IgG. The correlation coefficient relating the prevalence in pigs and human on different farms was 0.920. The seropositive rate in males （human） was 48.8% （20/41） and that in females was 47.7% （9/19）, which showed no statistically significant difference. These data indicated that there was a high prevalence of anti-HEV antibodies in pigs and in human with occupational exposure to pigs. The risk of infection with HEV in both human and pigs in Guangdong Province appeared to be age-dependent, to a certain extent. This study provided basic data for further researches on HEV and was a reminder that more attention should be paid to HEV infection both in pigs and workers on pig farms in the study region.展开更多
Fifty patients(28 males and 22 females)with lichen planus were tested for anti HCV antibodies.None of them gave positive result in our case control study.There were various studies conducted in different parts of the ...Fifty patients(28 males and 22 females)with lichen planus were tested for anti HCV antibodies.None of them gave positive result in our case control study.There were various studies conducted in different parts of the world that proved or disproved a causative role for HCV in LP.展开更多
乙型肝炎病毒(hepatitis B virus,HBV)感染是肝细胞癌(hepatocellular carcinoma,HCC)发生和发展的主要危险因素,通过反复炎症刺激,肝细胞再生,纤维化和瘢痕形成的过程,最终可能进展为HCC。抗病毒治疗通过降低HBV DNA水平,来降低HBV相关...乙型肝炎病毒(hepatitis B virus,HBV)感染是肝细胞癌(hepatocellular carcinoma,HCC)发生和发展的主要危险因素,通过反复炎症刺激,肝细胞再生,纤维化和瘢痕形成的过程,最终可能进展为HCC。抗病毒治疗通过降低HBV DNA水平,来降低HBV相关HCC的发生以及术后复发风险,改善预后。近来的许多研究发现,不同类别的核苷(酸)类药物[nucleos(t)ide analogues,NAs]对降低HBV相关HCC发生以及术后复发可能存在差异。本文就不同类别NAs对HBV相关HCC的差异性改善以及其可能的机制进行综述。展开更多
基金Supported by the National Key R&D Program(2016YFD0500707)Department of Education of Guangdong Province(YQ2015030)the Industry Technology System of Modern Agriculture Construction Fund of China(CARS-36)
文摘Hepatitis E is caused by hepatitis E virus （HEV）, which has been classified into four genotypes. Genotypes 3 and 4 are regarded as zoonotic pathogens. Accumulating researches indicate that genotype 4 is the main HEV strain circulating in China, and there are high levels of seropositive pigs and human in some provinces of China. In this study, serum samples from pigs and from human occupationally exposed to pigs were obtained from pig farms in Guangdong Province, in subtropical southern China, in order to investigate for the first time the prevalence of anti-HEV immunoglobulin G （IgG） in the region. Antibodies against HEV were detected by Enzyme-Linked Immunosorbent Assay （ELISA） using a commercially marketed kit. The results showed that high numbers of pigs （74/94; 78.7%） and human （50/94; 53.2%） from three pig farms in Guangdong Province were positive for anti-HEV IgG. The correlation coefficient relating the prevalence in pigs and human on different farms was 0.920. The seropositive rate in males （human） was 48.8% （20/41） and that in females was 47.7% （9/19）, which showed no statistically significant difference. These data indicated that there was a high prevalence of anti-HEV antibodies in pigs and in human with occupational exposure to pigs. The risk of infection with HEV in both human and pigs in Guangdong Province appeared to be age-dependent, to a certain extent. This study provided basic data for further researches on HEV and was a reminder that more attention should be paid to HEV infection both in pigs and workers on pig farms in the study region.
文摘Fifty patients(28 males and 22 females)with lichen planus were tested for anti HCV antibodies.None of them gave positive result in our case control study.There were various studies conducted in different parts of the world that proved or disproved a causative role for HCV in LP.
