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创伤性疾病下人肝细胞的功能活性

Functional activity of human hepatocytes under traumatic disease.

作者信息

Kudryavtseva M V, Stein G I, Shashkov B V, Kudryavtsev B N

机构信息

Institute of Cytology, Russian Academy of Sciences, St. Petersburg.

出版信息

Exp Toxicol Pathol. 1998 Mar;50(1):53-7. doi: 10.1016/S0940-2993(98)80068-7.

Abstract

Absorption and fluorescent cytophotometry techniques were applied to studies of RNA as well as of total glycogen and its fractions as the parameters of functional activity of the hepatocytes in patients with severe mechanical trauma, both with and without autointoxication (AI). Slides were stained with gallocyanine-chromalums to determine the RNA content and were processed by the fluorescent PAS-reaction for the glycogen content. To trace the dynamics of RNA and glycogen contents in the liver punction biopsies were done in the same patients. A quick increase in the RNA content took place in both groups of patients at the first period (within the first 3 days) of traumatic disease. At the second period of disease the hepatocyte RNA content in patients without AI was found to decrease up to the initial level whereas that in patients with AI increased on the average by 36% of the initial values. The total glycogen content in hepatocytes of all the patients changed insignificantly in the course of disease but its labile fraction in patients with AI decreased to 70% of the total. The increase of hepatocyte synthetic activity and the maintenance of the high glycogen level are indicative of the large compensatory potential of the liver that enables it to carry an intensive functional load under AI conditions.

摘要

采用吸收和荧光细胞光度术,以RNA以及总糖原及其组分作为重度机械创伤患者肝细胞功能活性参数,对伴有和不伴有自身中毒(AI)的患者进行研究。用甲苯胺蓝 - 铬明矾对载玻片染色以测定RNA含量,并用荧光PAS反应处理以测定糖原含量。为追踪RNA和糖原含量的动态变化,对同一批患者进行肝脏穿刺活检。在创伤性疾病的第一阶段(头3天内),两组患者的RNA含量均迅速增加。在疾病的第二阶段,发现无AI患者的肝细胞RNA含量降至初始水平,而有AI患者的肝细胞RNA含量平均比初始值增加36%。所有患者肝细胞中的总糖原含量在病程中变化不明显,但其在有AI患者中的不稳定部分降至总量的70%。肝细胞合成活性的增加以及高糖原水平的维持表明肝脏具有很大的代偿潜力,使其能够在AI条件下承受高强度的功能负荷。

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