慢性HBV感染者肝脏病理及临床特征分析128例

目的:比较慢性HBV携带者与血清ALT轻度升高慢性乙型肝炎患者肝组织病理学及临床改变的差异, 并寻找与肝组织学改变相关的因素.方法:将128例患者按血清ALT水平分为3组:A组:ALT≤0.5×正常值上限(upper limitsof normal, ULN), B组:0.5×ULN0.05), C组的脾脏厚度较A组、B组显著增加(均P<0.01); 随炎症分级的增加, 血清ALT、脾脏厚度、门静脉宽度、肝内HBcAg阳性率显著增加(均P<0.05);脾脏厚度、门静脉宽度、血清HBeAg阴性患者比率随纤维化程度加重显著增加( 均P<0.05).结论:慢性HBV感染者(ALT<2×ULN), 肝组织均有不同程度炎症改变, 伴或不伴纤维化改变, 密切随访血清ALT、脾脏厚度、门静脉宽度、肝内HBcAg的表达, 对于协助了解肝脏病变有一定的提示作用.     

慢性乙型肝炎患者肝组织基质金属蛋白酶组织抑制物-1表达及其意义

目的：分析慢性乙型肝炎患者血清和肝组织基质金属蛋白酶组织抑制物-1（TIMP-1）表达水平与肝纤维化分期的相关性。方法分别采用免疫组化法和双抗体夹心酶联免疫吸附法检测患者肝组织和血清 TIMP-1表达水平,分析两者相关性;对159例慢性乙型肝炎患者行肝活检病理学检查,以组织学活动指数（HAI）予以分级（G）和分期（S）,分析慢性乙型肝炎患者血清 TIMP-1水平与 HAI 分级和纤维化分期的相关性。结果慢性乙型肝炎患者肝组织 TIMP-1表达水平与其血清水平呈显著性正相关（r=0.9521,P＜0.01）;不同肝纤维化分期（S1～S4）慢性乙型肝炎患者血清 TIMP-1水平差异显著（P＜0.05）,且血清 TIMP-1水平与肝纤维化分期呈正相关（r=0.704, P＜0.01）,但不同炎症分级的慢性乙型肝炎患者血清 TIMP-1水平差异无显著性。结论血清 TIMP-1水平可以较好地反应肝脏纤维化程度,且不受肝组织炎症分级的影响,有望被用于肝组织纤维化程度的临床无创评估。     

抗病毒治疗对HBeAg阴性CHB患者TGF-β1、TIMP-1、MMP-1水平的影响

目的 探讨TGF-β1、TIMP-1、MMP-1在HBeAg阴性CHB患者肝纤维化诊断中的作用以及抗乙肝病毒治疗对其影响.方法 以正常体检健康者为对照组,HBeAg阴性CHB分轻度、中度、重度组,依据抗病毒治疗48周后HBV DNA低于检测下限分为治疗有效组和治疗无效组,ELISA法测定各组血清中TGF-β1、TIMP-1、MMP-1含量,免疫组化检测肝组织TIMP-1、MMP-1表达.结果 HBeAg阴性慢性乙型肝炎外周血TGF-β1、TIMP-1水平明显高于正常对照组(P＜0.01),而血清MMP-1则明显低于正常对照组(P＜0.01).随慢性肝炎轻度-重度逐渐发展,血清TGF-β1、TIMP-1的水平逐渐增高,且差异有统计学意义(P＜0.05).TIMP-1蛋白在肝纤维化组织的阳性表达,随肝纤维化程度的加重而增强,呈正相关(rs=0.618,P=0.002);MMP-1蛋白在肝纤维化组织的阳性表达与肝纤维化程度无相关性(rs=0.077,P=0.732).抗病毒治疗48周后有效组血清TGF-β1、TIMP-1的含量明显下降,MMP-1水平上升(P＜0.01).无效组血清TGF-β1、TIMP-1、MMP-1水平变化不明显(P＞0.05).结论 联合检测TGF-β1、TIMP-1、MMP-1是判断慢性肝病患者有无纤维组织增生敏感而可靠的指标,动态观察上述指标的变化,对临床判断肝纤维化程度和活动度有着重要价值,同时也为临床疗效的判断提供有效的实验依据.     

慢性乙型肝炎病毒携带者和ALT轻度升高慢性乙型肝炎患者的肝脏病理及临床特征

目的 分析不同ALT水平慢性HBV携带者和血清ALT轻度升高慢性乙型肝炎患者肝组织病理学及临床改变,B超检查结果 的差异,寻找与肝组织学改变相关的因素. 方法 将128例患者分为3组:A组:ALT≤0.5×正常值上限(ULN),B组:0.5×ULN相似文献   

转化生长因子β1和基质金属蛋白酶抑制因子-1在肝纤维化诊断中的作用及关系

目的通过检测慢性乙型肝炎患者血清TGFβ1和TIMP-1在肝纤维化不同阶段的表达情况,探讨TGFβ1和TIMP-1在肝纤维化诊断中的作用及相互关系。方法采用酶联免疫吸附法（ELISA）检测40例慢性乙型肝炎患者和12名健康体检者血清TGFβ1、TIMP-1水平,RIA检测血清HA,LN、Ⅲ型前胶原氨基端肽（P．ⅢNP）水平,40例患者全部进行肝活组织检查,分析TGFβ1、TIMP-1与肝组织纤维化程度分期和炎症活动度分级的关系以及五项指标之间的相关性。结果血清TGFβ1、TIMP1在肝纤维化早期即明显升高,敏感性优于HA、LN、PⅢNP;且随肝纤维化程度的加重TGFβ1、TIMP-1逐渐升高（P＜0．05）;TGFβ1变化趋势与TIMP-1、HA、LN、PⅢNP均呈正相关（P＜0．01）,与TIMP-1相关性最强。结论TGFβ1、TIMP-1密切参与肝纤维化的形成过程,TIMP-1可能受TGFβ1调节,二者可作为早期肝纤维化的诊断指标。     

ALT≤2倍正常值上限的HBeAg+/-慢性HBV感染者肝脏病理及临床特征

目的对比ALT≤2倍正常值上限(ULN)的慢性HBV感染者中,HBeAg阳性与HBeAg阴性患者肝组织病理学及临床改变的差异,并寻找这两部分患者中与肝组织学改变相关的因素。方法将196例患者分为HBeAg阳性组136例与HBeAg阴性组60例,对比两组患者性别、年龄、血清ALT、HBVDNA定量、脾脏厚度、门静脉内径、肝脏炎症活动度、纤维化程度的差异,并进一步分析这两部分患者中,不同肝脏病理改变时上述临床资料的变化。结果 HBeAg阳性患者肝脏炎症改变在G1-G2级,纤维化程度在S0-S2期,其中G2、S2者分别为70例(51.5%)、14例(10.3%);HBeAg阴性患者,肝脏炎症改变在G1-G3级,纤维化程度在S0-S2期,其中G2、S2者分别为49例(81.7%)、19例(31.7%)。HBeAg阴性患者的男性比例、年龄、血清ALT、HBVDNA定量及肝脏病变程度均明显高于HBeAg阳性患者,差异有统计学意义。在HBeAg阳性患者中,随着肝脏炎症程度的加重,血清ALT、脾脏厚度、门静脉内径明显增加,而性别比例、年龄、HBVDNA定量无明显变化;随着肝纤维化程度的加重,脾脏厚度、门静脉内径明显增加,而性别比例、年龄、血清ALT、HBVDNA定量无明显变化。在HBeAg阴性患者中,随着肝脏炎症及纤维化程度的加重,男性比例、年龄、脾脏厚度、门静脉内径均明显增加,且血清ALT水平、HBVDNA定量随肝脏炎症程度的加重亦明显增加,差异均有统计学意义,但以上两指标随肝纤维化程度的加重无明显变化。结论对于ALT≤2×ULN的慢性HBV感染者,HBeAg阴性患者的肝脏病变明显重于HBeAg阳性患者,密切随访血清ALT、脾脏厚度、门静脉内径,有助于了解肝脏病理变化;对于HBeAg阴性患者,尤其是男性患者,应同时密切随访年龄、HBVDNA水平。     

彩色超声与慢性肝炎肝纤维化分期的相关性分析

目的探讨超声诊断慢性乙型肝炎(CHB)患者代偿期肝硬化的价值。方法 2010年1月至2015年1月行肝活组织检查的CHB患者226例,收集患者B型超声资料,利用Logistic回归分析与代偿期肝硬化程度相关的指标,采用受试者工作特征曲线下面积(AUROC)评价B型超声诊断代偿期肝硬化的价值。结果超声指标中SWV、门静脉主干内径、胆囊壁厚度、脾脏长径、脾脏厚度、脾脏面积、脾静脉内径、门静脉最大流速共8项指标与肝脏炎症分级和纤维化分期均相关。其中,SWV、门静脉主干内径、脾脏长径、门静脉最大流速、脾静脉内径与组织学代偿期肝硬化独立相关,AUC均0.7。结论超声的部分影像学指标对预测组织学代偿期肝硬化有潜在的价值。     

肝功能正常慢性HBV感染者肝组织学炎症程度相关因素分析

目的研究肝功能正常慢性HBV感染者的性别、年龄、HBeAg状态、HBV DNA量、脾脏厚度、胆囊壁厚度及门静脉内径等指标与肝组织学炎症程度的相关性。方法回顾性分析41例行肝组织学检查而肝功能正常的慢性HBV感染者相关病例资料,采用Logistic回归分析上述指标与肝脏炎症程度的相关性。结果 41例慢性HBV感染者多数存在不同程度的炎症病理损伤,炎症分级≥G2者共18例(43.9%),年龄和胆囊壁厚度为肝组织炎症分级的独立危险因素(OR值分别为5.469、4.506,P值分别为0.003、0.014)。结论有接近半数肝功能正常慢性HBV感染者肝脏炎症分级≥G2;年龄、胆囊壁厚度为评估肝功能正常慢性HBV感染者肝组织炎症程度相关的临床指标,此二者作为临床指标随访该类患者可能有一定意义。     

HBeAg阳性和阴性慢性乙型肝炎患者肝组织学与血清学关系的比较

目的 研究慢性乙型肝炎(CHB)患者(1×ULN≤ALT≤2×ULN)肝组织学与血清学的关系.方法 对全国多中心516例CHB患者(1×ULN≤ALT≤2×ULN)行血清学及肝穿刺病理检查,依据血清HBeAg表达水平将患者分为HBeAg阳性组和HBeAg阴性组,分析两组肝组织病理学与血清学指标的相关性.结果 HBeAg阳性患者肝组织炎症分级和肝纤维化分期与血清HBsAg和HBeAg表达水平呈负相关(P＜0.01),与血清透明质酸(HA)和α2-巨球蛋白水平呈正相关(P＜0.01),与血清HBVDNA水平无明显相关性;HBeAg阴性患者肝组织炎症分级和肝纤维化分期与血清HBV DNA水平呈正相关(P＜0.01),与HBsAg、HA和α2-巨球蛋白等无明显相关性.结论 血清HBV DNA可做为HBeAg阴性CHB患者肝脏病变程度的有效预测指标,HBsAg、HBeAg、HA和α2-巨球蛋白均可做为HBeAg阳性CHB患者肝组织损伤的预测指标.     

慢性乙型肝炎患者肝组织病理研究

目的:探讨慢性乙型肝炎(CHB)患者临床表现和病理诊断的相关性.方法:收集30例CHB患者的临床资料,分析临床表现与病理诊断的相关性.结果:肝组织的炎症和纤维化程度的相关性显著(r=0.659,P＜0.01),白蛋白/球蛋白比值(A/G)与肝脏炎症和纤维化分级显著负相关(r=-0.368,P＜0.05;r=-0.401,P＜0.05).年龄、性别及其他化验指标如ALT、AST、TP、ALB、GLO、TBil、PLT、PT、PTA、门静脉宽度、脾脏厚度等与肝组织炎症和纤维化分级无显著相关性(P＞0.05).结论:慢性乙型肝炎肝脏炎症和纤维化的严重程度密切相关,仅根据肝功能判断轻中度的CHB患者的肝脏炎症及纤维化程度有相当的局限性.     

血清胶原酶对判断慢性乙型肝炎肝纤维化及炎症程度的意义

目的观察慢性乙型肝炎患者血清基质金属蛋白酶(MMPs)及金属蛋白酶组织抑制因子(TIMPs)水平与肝纤维化及炎症程度的相关性,寻找新的判定肝纤维化程度的血清学指标.方法慢性乙型肝炎患者88例,间隔半年行两次肝穿刺活检,病理组织进行炎症活动度及纤维化程度半定量计分;检测血清TIMP1、TIMP2、MMP1、MMP2、MMP9、Ⅳ型胶原、层黏连蛋白、Ⅲ型前胶原N端肽、透明质酸水平.结果血清TIMP1(r=0.540,P＜0.001)、MMP2(r=0.314,P=0.003)、TIMP1/MMP1(r=0.269,P＜0.001)与纤维化分级成正相关,MMP1与纤维化分级成负相关(r=-0.49 5,P＜0.001),且与血清Ⅲ型前胶原N端肽、透明质酸相关;根据受试者工作特性曲线(ROC)下面积计算,MMP1以13.96(ng/ml)为临界值,判别S2及S2以上纤维化的敏感性为90.5%,特异性为52.0%;TIMP1以76.84(ng/ml)为临界值,敏感性为91.6%,特异性为64.0%.MMP1以6.86(ng/ml)为临界值,判别肝硬化(S4)期敏感性为70.7%,特异性为80.9%;TIMP1以210.04(ng/ml)为临界值,其敏感性60.5%,特异性92.3%.MMP1、TIMP1与炎症分级及计分均有相关性,而TIMP1与碎屑坏死、桥接坏死相关性最好(r=0.435,P＜0.001),TIMP2与MMP9与炎症没有明显相关性.结论血清TIMP1、MMP1、MMP2水平、TIMP1/MMP1比值可作评估肝纤维化发展或减轻的指标.     

复方中药对肝纤维化治疗前后的血清学评价

目的通过对肝纤维化复方中药治疗的前后对比,结合肝病理组织学改变,进一步了解血清纤维化指标的诊断价值。方法对临床确诊为慢性乙肝及早期肝硬化的３４例患者,服用复方中药制剂半年,治疗前后各肝穿一次及采血４次,血清检测透明质酸（ＨＡ）,Ⅲ型前胶原（ＰＣⅢ）Ⅳ型胶原（ＣＩＶ）及层粘素（ＬＮ）。ＨＡ、ＰＣⅢ及ＬＮ用放免法,ＣＩＶ用酶免法。结果治疗前后对比,血清纤维化指标中,ＨＡ、ＰＣⅢ及ＩＮ变化非常显著（Ｐ＜０００１）;ＣＩＶ变化不明显（Ｐ＞００５）;血清纤维化四项指标与病理炎症及纤维化程度关系密切。与炎症计分的相关系数为：ＰＣⅢ：（０５２８５）、ＨＡ（０３８７７）、ＣＩＶ（０３４６４）和ＬＮ（０３３４１）;与纤维化计分的相关系数为：ＨＡ（０６２０３）、ＬＮ（０４２８９）、ＰＣⅢ（０４０９８）和ＣＩＶ（０３９７７）。结论血清纤维化指标为较好反映肝纤维化的指标,并随治疗有效而下降,其中ＨＡ对肝纤维化及早期肝硬化的诊断价值较大,ＰＣⅢ更倾向于反映活动性肝纤维化。     

慢性乙型肝炎肝纤维化分期与血清肝纤维化标志物的相关性分析

目的 探讨血清透明质酸、Ⅲ型前胶原、层粘蛋白、Ⅳ型胶原等血清肝纤维化标志物与慢性肝炎肝组织炎症活动度及纤维化程度的相关性。方法 278例慢性肝炎患者经肝脏活栓后常规病理检查,肝活检前同时采血检测血清透明质酸、Ⅲ型前胶原、层粘蛋白、Ⅳ型胶原,结果应用x^2检验及t检验进行统计学处理。结果 肝组织纤维化程度与炎症活动度呈正相关关系,透明质酸可反映中度以上慢性肝炎炎症活动度及纤维化程度,且呈正相关;肝脏存在纤维化时层粘蛋白水平升高,与纤维化程度正相关;Ⅲ型前胶原、Ⅳ型胶原水平升高与炎症活动度有关。结论 血清透明质酸、Ⅲ型前胶原、层粘蛋白、Ⅳ型胶原可不同程度反映肝纤维纤维化程度,可作为血清肝纤维化检测指标,透明质酸更可反映肝硬化发展趋势。     

血清纤维化指标对肝纤维化诊断价值的研究

目的评价血清纤维化指标透明质酸（HA）、Ⅳ型胶原（CⅣ）、Ⅲ型前胶原肽（PⅢP）、层黏连蛋白（LN）对肝纤维化诊断的价值.方法对确诊的慢性乙型肝炎患者50例和健康人18例,测定血清纤维化指标水平,并进行肝组织纤维化分期.根据受试者工作特征曲线判别4项指标对于肝纤维化分期的诊断价值.结果血清HA、CⅣ、PⅢP和肝脏组织炎症分级呈较弱正相关（r分别为0.430、0.382和0.300,P＜0.05）.血清HA、CⅣ与肝脏组织纤维化分期呈中度正相关（r分别为0.614、0.708,P＜0.05）.血清HA、CⅣ水平随肝纤维化的进展程度而升高.血清HA诊断早期肝硬化（S4）的受试者工作特征曲线下面积（AUC）大于血清CⅣ、PⅢP和LN（AUC=0.967比0.932、0.659、0.403）.血清CⅣ诊断肝纤维化（S1～S4）的AUC大于血清HA、PⅢP和LN（AUC=0.853比0.680、0.536、0.487）.血清LN对于肝组织分级或分期均无统计学意义.联合HA＋CⅣ检测比单一指标有更高的特异度.结论血清纤维化指标对肝纤维化进程有一定的预测意义,但不能对肝纤维化精确分期,因此不能取代肝组织病理活检.联合多项指标检测可在一定程度上提高检测效率.寻找新的血清标志物和联合其他标志物是肝纤维化无创性研究的趋势所在.     

Diagnostic value of platelet derived growth factor-BB, transforming growth factor-β1,matrix metalloproteinase-1, and tissue inhibitor of matrix metalloproteinase-1 in serum and peripheral blood mononuclear cells for hepatic fibrosis

AIM: Noninvasive diagnosis of hepatic fibrosis has become the focus because of the limited biopsy, especially in the surveillance of treatment and in screening hepatic fibrosis.Recently, regulatory elements involved in liver fibrosis, such as platelet derived growth factor-BB (PDGF-BB), transforming growth factor-β1 (TGF-β1), matrix metalloproteinase-1 (MMP-1), and tissue inhibitor of matrix metalloproteinase-1 (TIMP-1), have been studied extensively. To determine whether these factors or enzymes could be used as the indices for the diagnosis of hepatic fibrosis, we investigated them by means of receiver operating characteristic (ROC) curve.METHODS: Serum samples from sixty patients with chronic viral hepatitis B and twenty healthy blood donors were assayed to determine the level of PDGF-BB, TGF-β1, MMP-1, and TIMP-1 with ELISA, and HA, PCIII, C-IV, and LN level with RIA. The message RNA (mRNA) expression of TIMP-1 and MMP-1 in peripheral blood mononuclear cells (PBMCs) was detected by RT-PCR and Northern blot hybridization. Liver biopsy was performed in all patients.The biopsy samples were histopathologically examined. The trial was double-blind controlled.RESULTS: The serum level of PDGF-BB, TIMP-1, the ratio of TIMP-1 and MMP-1 (TIMP-1/MMP-1), mRNA expression of TIMP-1 (TIMP-1mRNA), and the ratio of TIMP-1mRNA and MMP-1mRNA (TIMP-1mRNA/MMP-1mRNA) in patients was significantly higher than those in the healthy blood donors (t=2.514-11.435, P=0.000-0.016). The serum level of PDGF-BB, TIMP-1, TIMP-1/MMP-1, and TIMP-1mRNA was positively correlated with fibrosis stage and inflammation grade (r=0.239-0.565, P=0.000-0.033), while the serum level of MMP-1 was negatively correlated with fibrosis stage and inflammation grade, and TIMP-1mRNA/MMP-1mRNA was positively correlated with inflammation grade. Through the analysis by ROC curve, serum PDGF-BB was the most valuable marker, and its sensitivity was the highest among the nine indices. The markers with the highest specificity were TIMP-1mRNA and TIMP-1mRNA/MMP-1mRNA in PBMCs. The area under the curve (AUC) of PDGF-BB, TIMP-1mRNA, TIMP-1mRNA/MMP-1mRNA, TIMP-1/MMP-1, HA,PCIII, TIMP-1, C-IV, and LN was 0.985, 0.876, 0.792, 0.748,0.728, 0.727, 0.726, 0.583, and 0.463, respectively. The sensitivity and the specificity in the parallel test was 99.0 %and 95.0 % when serum PDGF-BB, TIMP-1mRNA and TIMP1mRNA/MMP-1mRNA was detected simultaneously.CONCLUSION: Serum level of PDGF-BB, TIMP-1mRNA,TIMP-1mRNA/MMP-1mRNA in PBMCs, and serum level of TIMP-1 and TIMP-1/MMP-1 can be used as the indices for the diagnosis of hepatic fibrosis, but the former three are more useful. The combination of serum PDGF-BB, TIMP-1mRNA and TIMP-1mRNA/MMP-1mRNA in PBMCs is even more efficient in screening liver fibrosis.     

血清学诊断肝纤维化新指标--金属蛋白酶组织抑制因子检测方法学建立及应用评价

目的：自行建立一种改良固相致敏红细胞吸附技术（SPASE）用于快速检测肝硬化病人血清中金属蛋白酶组织抑制因子－1，2（TIMP－1和TIMP－2），同时研究TIMP－1和TIMP－2在肝化病人肝组织中的定位及表达状态，以及肝组织TIMPs与血清TIMPs的相关性。探讨血清中TIMP－1和TIMP－2可否作为肝纤维化的血清学诊断新指标。方法：应用自行建立的SPASE检测1082例肝病病人（其中肝硬化310例）血清标本中的TIMP－1和TIMP－2。用原位杂交及免疫组织化学技术分别检测40例肝硬化病人活检肝组织中TIMP－1和TIMP－2 mRNA及相关抗原的表达，并与病人自身血清检测结果对比。另检测20例正常肝组织作为对照。结果：SPASE法特异性中和抑制试验示中和抑制率均在70％以上，检测310例肝硬化病人血清中TIMP－1和TIMP－2的阳性率分别为79．68％和65．16％。40例肝硬化病人肝组织中TIMP－1和TIMP－2 mRNA及相关抗原表达阳性率为100％，TIMP－1表达强度高于TIMP－2（P＜0．01）；阳性信号主要位于肝细胞胞质内，未见细胞核表达。40例肝硬化肝活检病人血清检测结果，TIMP－1阳性率为100％，TIMP－1阳性率为77．5％（31／40）。正常肝组织无一例有TIMPs相关抗原表达。结论：TIMPs定位于肝硬化病人的肝细胞胞质内，在肝硬化组织内呈程度不等的阳性表达；血清中TIMPs与肝组织中TIMPs表达有明显相关性，因而血清中TIMP－1和TIMP－2可作为肝纤维化较为有用的血清学诊断新指标，尤其是TIMP－1的诊断意义更大。SPASE法检测血清中TIMPs具有较好的特异性。     

HBeAg阳性慢性乙型肝炎患者血清HBeAg与肝组织病理的相关性研究

目的探讨慢性乙型肝炎（cHB）患者血清HBeAg与肝组织炎症活动度及纤维化程度的关系。方法采用回顾性病例序列研究方法,搜集我院2005年1月至2009年12月行肝组织活检术的137例HBeAg阳性CHB患者的临床资料,血清HBeAg滴度均采用微粒子免疫发光法检测,血清HBVDNA采用荧光定量PCR法检测。结果肝组织炎症分级及纤维化分期与血清HBeAg滴度呈负相关,与ALT水平呈正相关,与HBVDNA水平无相关性;血清HBeAg和ALT水平可独立预测肝组织炎症≥G2和纤维化≥S2,优于血清HBVDNA水平和年龄;且血清HBeAg预测肝组织炎症≥G2的价值优于ALT,而预测纤维化≥S2的价值略低于ALT。肝细胞HBcAg阳性组血清HBeAg、HBVDNA水平均高于肝细胞HBcAg阴性组（均P〈0．01）。血清HBeAg滴度预测肝细胞表达HBcAg的灵敏度、特异度分别为80．02％和65．89％,高于血清HBVDNA（78．89％和43．21％）。血清HBeAg滴度与HBVDNA水平呈正相关（r=0．274,P=0．002）,与ALT水平呈负相关（r=0．212,P=0．013）。结论血清HBeAg与肝组织炎症程度及纤维化分期呈负相关;血清HBeAg滴度预测肝组织炎症程度的价值优于年龄、血清ALT、HBVDNA水平,预测肝纤维化程度的价值低于ALT。血清HBeAg较血清HBVDNA更能反映肝细胞内HBV复制情况。     

Clinical significance of measurement of PIIIP, laminin P1, type IV-C and 7S in patients with chronic liver diseases--with special reference to histological findings]

Four markers for hepatic fibrosis--N-terminal peptide of Type III procollagen (PIIIP), Laminin P1 (laminin), Type IV collagen (Type IV-C), and 7S domain (7S)--were measured in the sera of 90 patients with various chronic liver diseases diagnosed by liver biopsy--fatty liver (FL), chronic inactive hepatitis (CIH), chronic active hepatitis (CAH), and liver cirrhosis (LC)--and in the sera of 20 healthy controls. The values of markers were compared with the grade of histologic findings of the liver. Four markers were significantly raised in the CAH group and the LC group, and they were considered to be indicators of hepatic fibrosis. PIIIP reflected necrosis and inflammation as well as fibrosis of the liver. Laminin, Type IV-C, and 7S reflected severe fibrosis. 7S was considered to be useful marker for liver cirrhosis.     

Matrix metalloproteinases 2 and 9 are markers of inflammation but not of the degree of fibrosis in chronic hepatitis C

BACKGROUND: The degree of liver fibrosis and inflammation is important in patients with chronic hepatitis C (CHC) in terms of therapy as well as prognosis. To obviate the need of liver biopsy, serum markers such as procollagen I, III and hyaluronic acid have been proposed but were found to be inaccurate. Controversy still exists regarding the role of matrix metalloproteinases (MMPs) as valid markers of liver fibrosis. AIM: To assess liver and serum MMP-2 and -9 as markers of fibrosis and inflammation in patients with CHC. METHODS: Thirty-five CHC patients and 8 non-hepatitis C patients with normal liver enzymes underwent liver biopsy. Activities of inflammation and fibrosis stage were determined by the Desmet score on a scale of 0-4. Serum and liver tissue MMP-2 and -9 activities were measured by zymography using substrate impregnated gels. RESULTS: Patient and control groups were similar in terms of age (50.8 +/- 15.1 vs. 50.6 +/- 15.2) and male/female ratio (18/17 vs. 4/4). In serum, MMP-9 activity was increased in patients compared to controls (308 +/- 110 vs. 163.5 +/- 35 , p < 0.05). In liver tissue, MMP-9 was also higher in patients than in controls (21 +/- 4.5 vs. 17.1 +/- 5.1, p < 0.05), whereas MMP-2 did not differ between patients and controls. Serum MMP-9 values correlated with liver histologic inflammatory grade (290.4 +/- 83 in grade 2 vs. 562.1 +/- 128 in grade 3, p < 0.05) but not with fibrosis stage. The highest rising in serum MMP-9 levels was observed between grade 2 to grade 3 and was superior to the rising in serum transaminase levels, indicating its advantage in assessing the progression of disease activity. No correlation between liver MMP activities and liver fibrosis or inflammation was observed. CONCLUSION: Serum MMPs, in particular MMP-9, can serve as markers of disease activity rather than fibrosis stage in chronic HCV patients.     

Elevated serum type IV collagen: a sensitive indicator of the presence of cirrhosis in haemochromatosis.

BACKGROUND/AIM: Hereditary haemochromatosis can now be diagnosed by genetic testing, although determining the presence or absence of cirrhosis remains crucial to patient management. While many studies have investigated the utility of various serum markers of cirrhosis in chronic liver diseases, few have examined specifically patients with hereditary haemochromatosis. The aim of this study was to assess the utility of serum type IV collagen and serum laminin in diagnosing hepatic fibrosis and cirrhosis in patients with hereditary haemochromatosis. METHODS: The study group consisted of 42 patients with hereditary haemochromatosis and 19 Caucasian controls. Serum type IV collagen, laminin, matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of metalloproteinase (TIMP-1) concentrations were measured by enzyme-linked immunosorbant assay in serum from patients with haemochromatosis and control subjects. Liver biopsies from patients with haemochromatosis were graded for fibrosis and correlated with serum markers of hepatic fibrosis. RESULTS: Serum type IV collagen concentration was significantly increased in haemochromatosis patients compared to controls (130+/-79 ng/ml vs 81 +/- 17 ng/ml, p<0.05) and was significantly correlated with both the grade of histological fibrosis (r=0.67, p<0.0001) and serum MMP-2 levels (r=0.42, p<0.05). A serum type IV collagen concentration > 115 ng/ml (mean+2 SD of controls) was 100% sensitive and 69% specific in detecting severe (grade 3) fibrosis and cirrhosis. The sensitivity results of serum laminin and TIMP-1 were 11% and 56% respectively. CONCLUSIONS: Elevated serum type IV collagen is a sensitive indicator of the presence of severe fibrosis and cirrhosis in patients with haemochromatosis. Useful markers of hepatic fibrosis in other chronic liver diseases may not be applicable to haemochromatosis.