共查询到20条相似文献,搜索用时 62 毫秒
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研究瘦素与酒精性肝病 (ALD)肝纤维化发生发展的关系。用ELISA法检测 6 0例ALD患者血清瘦素水平 ,16例健康人作为对照组 ,同步检测了ALD患者的血清肝纤维化指标HA、LN、PC -Ⅲ及TGFβ1,对血清瘦素与肝纤维化指标、肝组织纤维化分期间的关系进行了分析。ALD患者的血清瘦素水平明显高于对照组 ,在单纯性脂肪肝 (AFL)、脂肪性肝炎 (AH)、脂肪性肝硬化 (ALC)瘦素水平依次增高 ,差异有显著性。在AH、ALC血清瘦素水平与肝纤维化血清学指标和TGFβ1正相关 ,ALD患者的血清瘦素水平与肝组织纤维化分期密切相关。血清瘦素是ALD患者肝纤维化的始动因子之一 相似文献
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酒精性肝病患者血清瘦素水平的变化与临床意义 总被引:2,自引:0,他引:2
目的 研究瘦素与酒精性肝病 (ALD)肝纤维化发生发展的关系。方法 用ELISA方法检测 6 0例ALD患者血清瘦素水平 ,16位健康人作为对照组 ,同步检测了ALD患者的血清肝纤维化指标HA、LN、PCⅢ及TGFβ1,对血清瘦素与肝纤维化指标、肝组织纤维化分期间的关系进行了分析。结果 ALD患者的血清瘦素水平明显高于对照组 ,在酒精性脂肪肝 (AFL)、酒精性肝炎 (AH)、酒精性肝硬化 (ALC)瘦素水平依次增高 ,差异有显著性。在AH、ALC血清瘦素水平与肝纤维化血清学指标和TGFβ1正相关 ,ALD患者的血清瘦素水平与肝组织纤维化分期密切相关。结论 血清瘦素是ALD患者肝纤维化的始动因子之一。 相似文献
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瘦素对小鼠肝纤维化影响的初步研究 总被引:4,自引:0,他引:4
近年研究发现,活化的肝星状细胞(HSC)的瘦素mRNA和蛋白质的合成增加,慢性肝病患者血清中瘦素水平亦升高。表明瘦素和肝纤维化的发生发展可能存在着一定的联系,现探讨瘦素对小鼠肝纤维化发展的影响和可能存在的机制。 相似文献
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目的:探讨姜黄素对实验性肝纤维化大鼠肝脏组织中瘦素(leptin)以及瘦素受体(leptin receptor)表达的影响。方法:将22只雄性SD大鼠随机分为3组:正常对照组、模型组、姜黄素治疗组。采用四氯化碳(CCl4)皮下注射制作大鼠肝纤维化模型。制备肝组织切片,行常规HE染色、Masson染色,观察各组大鼠肝脏病理学变化,采用肝纤维化病理分期进行病理学疗效评估;应用免疫组织化学法检测肝组织中瘦素以及瘦素受体的表达。结果:姜黄素对肝纤维化大鼠的肝脏病理分期具有明显的改善作用。并且免疫组织化学检测显示姜黄素能显著减少瘦素与瘦素受体的阳性表达。结论:姜黄素能明显改善实验性大鼠肝纤维化,同时下调肝纤维化大鼠肝脏中瘦素以及瘦素受体的水平,这可能是姜黄素抗肝纤维化作用的机制之一。 相似文献
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ERCP and MRCP--when and why 总被引:8,自引:0,他引:8
Since the introduction of endoscopic retrograde cholangiopancreatography (ERCP) in the 1970s, gastroenterologists have a wide spectrum of diagnostic and therapeutic options in the biliopancreatic ductal system at their disposal. With its arrival in the 1990s, magnetic resonance cholangiopancreatography (MRCP) developed as a potent diagnostic tool in biliopancreatic pathology. Currently, MRCP is widely replacing diagnostic ERCP and thereby avoiding complications related to endoscopic technique.We summarize evidence-based data and demonstrate indications and differential indications for MRCP and ERCP in pancreatic disease. Complications related to the procedures and possible medical prevention are discussed. The feasibility of interventional endoscopy in pancreatic disease is reported in detail. The role of gastroenterologists in performing MRCP is outlined on the basis of practical examples. 相似文献
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W Perl 《Microvascular research》1975,10(1):83-94
Nonequilibrium thermodynamics is combined with compartmental analysis to interpret albumin sieving and tracer experiments in terms of a permeability-surface product PS (permeation) and a solvent drag reflection coefficient σf (convection) for various blood-tissue barriers. The human whole-body albumin data of Lassen, Parving, and Rossing (Lassen, Parving, and Rossing, Microvasc. Res.7, i–iv (1974)), modified for nonliver tissues by Johnson and Levitt (Johnson &; Levitt, Microvasc. Res.9, 141 (1975)) lead to P ~ 1.8 × 10?8 cm sec?1 (based on a surface area per unit plasma volume of 700 cm?1) and to σf ~ 0.9, which imply, in agreement with Johnson and Levitt, that permeation is the dominant nonliver blood-tissue transport mechanism for albumin in the normal resting human. Similar values are derived from the dog paw muscle data of Garlick and Renkin (Garlick and Renkin, Amer. J. Physiol.219, 1595–1605 (1970)). The Casley-Smith (Casley-Smith, Microvasc. Res.9, 43–48 (1975)) mechanism of uphill albumin transport is verified as possible. It is tentatively inferred that lymph formation in resting tissue does not result from a small difference between a large fluid (volumetric) filtration and an almost equally large fluid reabsorption, either in the same capillary (Starling) or between different capillaries (Zweifach) (Zweifach, Circ. Res.34, 858–866 (1974)). Rather, reabsorption is negligibly small relative to filtration, and lymph flow is comparable to volumetric filtration. 相似文献