庚型肝炎病毒感染的临床研究

目的 探讨庚型肝炎病毒（ＨＧＶ）感染的临床意义。方法 将ＨＧＶ单纯感染者（ＨＧＶ组）分别与ＨＧＶ和ＨＢＶ重叠感染者（ＨＧＶ＋ＨＢＶ组）和ＨＢＶ单纯感染者（ＨＢＶ组）进行临床对比分析。结果 ＨＧＶ组ＡＬＴ异常与否血清ＨＧＶＲＮＡ无关;ＨＧＶ＋ＨＢＶ组与ＨＢＶ组临床类型及肝功能状况相似;ＨＧＶ组和ＨＢＶ＋ＨＢＶ组脂肪肝发生率分别为２０％和２７．３％,显著高于ＨＢＶ组（Ｐ〈０．０１）。结论 ＨＧＶ在肝病     

急性肝炎中庚型肝炎病毒感染的状态

急性肝炎中庚型肝炎病毒感染的状态彭晓君安平任永强陈乃玲Ｓｕｂｊｅｃｔｈｅａｄｉｎｇｓｈｅｐａｔｉｔｉｓ；ａｃｕｔｅｄｉｓｅａｓｅｓ；ｈｅｐａｔｉｔｉｓＧ；ｈｅｐａｔｉｔｉｓＧｖｉｒｕｓ；ｓｕｐｅｒｉｎｆｅｃｔｉｏｎ主题词肝炎；急性病；肝炎，庚型；肝...     

肝炎患者中庚型肝炎病毒感染的PCR检测

应用逆转录套式ＰＣＲ法检测了４８例丙型肝炎，２６例乙型肝炎及１２例甲乙丙丁戊型肝炎病毒感染标志均阴性的肝炎患者血清中的庚型肝炎病毒ＲＮＡ。结果表明，我国肝炎患者存在ＨＧＶ感染；ＨＧＶ可单独感染或与其他肝炎病毒混合感染。丙型肝炎患者中，ＨＧＶ ＲＮＡ的检出率为１０．４％，乙型肝炎患者中的检出率为３．８％，而在甲乙丙丁戊型肝炎标志均阴性的肝炎患者中的检出率为３３．３％，ＨＧＶ与其他肝炎病毒的混合感染可     

庚型肝炎病毒感染患者病情转归的研究

本文对16例庚肝病毒抗体(抗-HGV)阳性患者进行了9mo的随访研究,结果如下。 1 材料和方法 1.1 材料 16例抗-HGV阳性患者和与之配对的16例抗-HGV阴性患者为我院1995-01/1996-12的门诊或住院患者,分别为观察组和对照组,其中男12例,女4例,年龄21.5岁～56.0岁(平均32岁±16岁),16例抗HGV阳性患者中7例为非甲-戊型肝炎患者,4例在1a前表现为急性肝炎,另外3例为慢性肝炎,另外9例抗-HGV阳性患者中5例为慢性乙型肝炎,4例为慢性丙型肝炎。按配对原则选择16例抗-HGV阴性患者作为对照组,分别在随访研究前,随访开始后每3mo及研究结束时采集血清,统一检查抗-HGV、HGV RNA、丙氨酸转     

药瘾者庚型肝炎病毒感染状况及其影响因素

目的:调查湖北地区药瘾者HGV感染状况及其影响因素.方法:检查药瘾者的血清HGV感染指标,用ELISA法检测抗-HGV.结果:716例药瘾者HGV的感染率为12.85%(92例).静脉药瘾者抗-HGV阳性率为16.96%,口服药瘾者为5.73%,两者比较差异有显著性意义(χ2=108.31,P＜0.05),吸毒2年以上者抗-HGV阳性率显著高于吸毒2年以下者(χ2=19.29,P＜0.01);女性药瘾者的抗-HGV阳性率略高于男性药瘾者,但统计学分析差异无显著性意义(χ2=1.36,P＞0.05);345例女性药瘾者中卖淫者抗-HGV阳性率显著高于无卖淫史药瘾者(χ2=4.10,P＜0.05);HBsAg阳性者和HBsAg阴性者抗-HGV阳性率的差异无显著性意义(χ2=1.31,P＞0.05);抗-HCV( )者和抗-HCV(-)者的抗-HGV阳性率差异有显著性意义(χ2=19.26,P＜0.01).所有HGV感染者的肝功能正常.结论:药瘾者具有较高的HGV感染率.药瘾者HGV感染率与吸毒时间呈正相关.     

庚型肝炎病毒感染对慢性丙型肝炎的影响

研究慢性丙型肝炎患者中庚型肝炎病毒(UGV)的感染及其对丙型肝炎临床表现、肝功能和对干扰素应答的影响。以HGV的5′非编码区引物建立了检测HGV RNA的RT-PCR法,检测51例慢性丙型肝炎病人中的HGV感染。结果51例病人中,11例为HGV RNA阳性。慢性丙型肝炎病人的临床表现与是否感染HGV不相关,肝功能试验结果也无统计学差异。29例接受干扰素治疗的病人中,有6例病人(20.7％)合并HGV感染。HGV阳性组6人中1例完全应答,HGV阴性组23人中,有3例完全应答,在这有限的病例中,两组应答率没有统计学差异。提示在我国丙型肝炎病人中,混合HGV较为常见,HGV感染对丙型肝炎的临床表现无明显影响,也不影响其对干扰素的应答。     

慢性乙型肝炎患者中庚型肝炎病毒检测

目的了解慢性乙型肝炎中庚型肝炎病毒（ＨＧＶ）的感染率及其对病变程度和ＨＢＶ复制的影响。方法逆转录聚合酶链反应（ＲＴＰＣＲ）检测６５例经肝活检证实的慢性乙型肝炎患者血清中ＨＧＶＲＮＡ。结果有８例（１２．３％）慢性乙型肝炎患者合并ＨＧＶ感染,轻度、中度和重度患者中的ＨＧＶ检出率统计学处理差异无显著性,ＨＧＶ混合感染与其临床表现无相关性,ＨＧＶ阳性组与阴性组患者的肝功能改变相近。ＨＢｅＡｇ阳性组和ＨＢｅＡｇ阴性组患者的ＨＧＶ检出率亦相当。结论在慢性乙型肝炎患者中,ＨＧＶ混合感染对慢性乙型肝炎的病变程度及病毒复制无明显影响     

百色少数民族地区结核病患者TTV和HGV感染的调查

目的了解百色少数民族地区结核病患者输血传播病毒（transfusion transmitted virus，TTV）和庚型肝炎病毒（hepeatitis Gvirus，HGV）的感染状况及临床意义。方法应用酶联免疫法（EUSA）检测712例结核病患者及500人健康人群血清抗-TTV和抗-HGV，对抗-TTV阳性者用PCR法检测TTV DNA，抗-HGV阳性者用逆转录套式聚合酶链反应法（PT—nPCR）检测HGVRNA，分析结核病患者-TTV ，DNA或HGVRNA阳性者临床特征。结果结核病患者TTV感染率16．71％，健康人群5．60％；结核病患者HGV感染率14．61％，健康人群2．60％；配对比较差异有显著性（P〈0．01）；结核病患者TTV与HGV感染率具有随年龄增长呈递增趋势，男性高于女性（P〈0．05），感染者有过输血史和注射史的比率比非感染者高（P〈0．05），在抗结核治疗中感染者比非感染者容易出现抗结核药物所致肝损害（P〈0．01）。结论结核病患者对TTV和HGV有较高的感染率，反复注射及免疫功能低下可能是增加TTV和HGV感染的原因，感染者在抗结核治疗中可能更容易出现肝损害。     

百色少数民族地区结核病患者TTV和HGV感染的调查

目的了解百色少数民族地区结核病患者输血传播病毒(transfusion transmitted virus,TTV)和庚型肝炎病毒(hepeatitis G virus,HGV)的感染状况及临床意义。方法应用酶联免疫法(ELISA)检测712例结核病患者及500人健康人群血清抗-TTV和抗-HGV,对抗-TTV阳性者用PCR法检测TTV DNA,抗-HGV阳性者用逆转录套式聚合酶链反应法(PT-nPCR)检测HGV RNA,分析结核病患者TTV DNA或HGV RNA阳性者临床特征。结果结核病患者TTV感染率16.71%,健康人群5.60%;结核病患者HGV感染率14.61%,健康人群2.60%;配对比较差异有显著性(P<0.01);结核病患者TTV与HGV感染率具有随年龄增长呈递增趋势,男性高于女性(P<0.05),感染者有过输血史和注射史的比率比非感染者高(P<0.05),在抗结核治疗中感染者比非感染者容易出现抗结核药物所致肝损害(P<0.01)。结论结核病患者对TTV和HGV有较高的感染率,反复注射及免疫功能低下可能是增加TTV和HGV感染的原因,感染者在抗结核治疗中可能更容易出现肝损害。     

Hepatitis C virus infection in Italian patients with fibromyalgia

We evaluated the prevalence of hepatitis C virus (HCV) infection in Italian patients suffering from fibromyalgia (FM), in comparison with patients affected by non-HCV related rheumatic degenerative disorders. Consecutive patients with FM and a statistically comparable group of patients suffering from peripheral osteoarthritis (OA) or sciatica due to L4-L5 or L5-S1 herniated disc were tested for HCV infection with a third-generation microparticle enzyme immunoassay (MEIA). In the positive cases, a third-generation recombinant immunoblot assay (RIBA) confirmatory test and serum HCV-RNA test were performed. Fisher’s exact test was performed to compare the prevalence of HCV infection (MEIA- and RIBA-positive results) obtained in the two enrolled groups. Enrolled were 152 subjects suffering from FM and 152 patients with peripheral OA or sciatica. Anti-HCV antibodies were found in 7/152 (4.6%) patients suffering from FM and in 5/152 (3.3%) of control subjects. No statistically significant differences in HCV prevalence were detected between cases and controls. Our present report does not confirm previous data indicating an increased prevalence of HCV in FM patients and does not seem to support a significant pathogenetic role of HCV under this condition.     

广州地区部分人群庚型肝炎病毒感染的流行病学调查

目的 为了解广州地区庚型肝炎病毒（HGV）感染的现状和流行特点，我们对348例住院和门诊的肝病患者进行了HGV RNA、HGV抗体（HGV－Ab)检测，现将结果报道如下。材料和方法，从广东省人民医院门诊和住院肝病患者收集血清标本348份，其中丙型肝炎93份，乙型肝炎120份，肝硬化75份，肝细胞癌60份。采用逆转录套式PCR检测HGV RNA。引物序列为：HGV1（F外）5′-CGCTCAAGCCAGCGAAGTAAGCA－3′，HGV2(R外）5′－CAATACCTCTCACCGACGGG－3′，HGV3（F内）5′－GGACTTCCGGATAGCTGAAAGCT－3′，HGV4（R内）5′－GCGTCCACACAGATGGCGA－3′。两次PCR循环条件相同，均为：94℃ 1min、55℃ 1min、72℃ 1min，35个循环。产物进行琼脂糖凝胶电泳，紫外灯下观察结果。采用酶联免疫吸附试验（ELISA）检测HGV－Ab。诊断试剂为北京大学医学院产品。结果 348份标本中，HGV RNA阳性检出率为8．62％（30／348）。其中丙肝标本检出率为6．45％（6／93），乙肝标本检出率为7．50％（9／120），肝硬化标本检出率为8．00％（6／75），肝细胞癌标本检出率为15．00％（9／60）。HGV－Ab阳性检出率为12．93％（45／348）。其中丙肝标本检出率为12．90％（12／93），乙肝标本检出率为10．00％（12／120），肝硬化标本检出率为8．00％（6／75），肝细胞癌标本检出率为25．00％（15／60）。30份HGV RNA阳性标本中HGV－Ab均为阳性。结论 HGV在广州地区多种肝病人群中的感染状况较普遍，与其它肝病重叠感染的情况较严重。应得到足够重视。℃℃℃     

肝炎病毒感染与胰岛素抵抗

肝炎病毒慢性持续感染主要是由乙型肝炎病毒(HBV)和丙型肝炎病毒(HCV)所致, 除了引起肝脏损害外, 还与一些肝外组织的损害密切相关. 近年来, 研究资料显示慢性HCV和HBV感染与糖尿病和脂肪肝等代谢性疾病的发病密切相关, 而胰岛素抵抗(IR)可能是其发病机制的中心环节. IR也是肝纤维化进展的相关因素, 并影响慢性肝炎病毒感染时抗病毒治疗的疗效. 此外, 糖尿病还可能增加肝炎病毒致癌的作用, 应该引起肝病医师的高度重视. 本文就近年来对HCV和HBV感染中IR发生机制方面的研究, IR在HCV和HBV感染相关的糖尿病和脂肪肝中的作用和影响及其对临床的指导意义作一述评.     

Hepatitis G virus RNA and its relation to hepatitis C infection in adult haemophilic patients

The prevalence of hepatitis C virus (HCV) infection and hepatitis G virus (HGV) RNA were studied in 50 adult haemophilic patients who had received commercial clotting factors prior to 1980. HGV RNA was detectable in 6/50 patients (12%); 49/50 (98%) had antibody to HCV and 40/49 (82%) of these were viraemic with detectable HCV RNA; 5/6 patients with detectable HGV RNA had co-existing HCV infection and viraemia. The HGV PCR products from all six patients were directly sequenced and all were shown to be similar to that of HGV but more diverse from that of GB virus C. One patient who had persistent abnormal liver function tests had detectable HGV RNA but no evidence of hepatitis B or C. The presence of HGV RNA in the absence of hepatitis B and C infection indicates that this virus is capable of independent transmission. Independent response to interferon was demonstrated in one patient with co-infection who lost HGV but not HCV after interferon therapy.     

Hepatitis G virus

A number of new hepatitis viruses （G, TT, SEN） were discovered late in the past century. We review the data available in the literature and our own findings suggesting that the new hepatitis G virus （HGV）, disclosed in the late 1990s, has been rather well studied. Analysis of many studies dealing with HGV mainly suggests the lymphotropicity of this virus. HGV or GBV-C has been ascertained to influence course and prognosis in the HIV-infected patient. Until now, the frequent presence of GBV-C in coinfections, hematological diseases, and biliary pathology gives no grounds to determine it as an ＂accidental tourist＂ that is of no significance. The similarity in properties of GBV-C and hepatitis C virus （HCV） offers the possibility of using HGV, and its induced experimental infection, as a model to study hepatitis C and to develop a hepatitis C vaccine.     

Hepatitis G virus infection in patients with bleeding disorders

Eighty-two patients with bleeding disorders registered with our centre were screened for infection with hepatitis G virus (HGV). 80 patients were positive for hepatitis C (HCV) antibodies, 66 of whom (83%) were HCV PCR positive. 11 patients (13%) were HGV RNA-positive, a similar prevalence rate to that of other studies of patients with bleeding disorders who received factor concentrates prior to the introduction of viral inactivation procedures. There was no significant difference in histological activity index (HAI) between the 10 HGV RNA-positive and the 31 HGV RNA-negative patients who underwent liver biopsy for assessment of HCV infection (median HAI scores 5.5, range 2–10 and four, range 0–10 respectively, P  = 0.07). One patient in each group had established cirrhosis. In patients who underwent HCV quantitation there was no significant difference in HCV viral titre between HGV RNA-positive and negative patients (median HCV titre in HGV RNA-positive patients 2.10 × 10⁵ DNA copies /ml ( n  = 8) range 4.17 × 10² to 4.17 × 10⁶, median HCV titre in HGV RNA-negative patients 3.33 × 10⁵ ( n  = 31) range 1.00 × 10³ to 6.67 × 10⁶, P  = 0.68). In this study there was no evidence that individuals co-infected with HGV and HCV have more severe liver disease than those infected with HCV alone.