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Ultrastructural Study of Liver Cells from Rooks Living in Ecologically Unfavorable Areas

机译：居住在生态不利地区的白嘴鸦肝脏细胞的超微结构研究

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The ultrastructure of liver cells was studied in rooks (Corvus frugilegus) living in radioactive and chemical contamination areas. The ultrastructure of liver cells from rook as well as jackdaw (Corvus monedula) and hooded crow (Corvus cornix) (Corvidae family) from a conventionally clean area was studied as control. Control hepatocytes proved to contain a great number of mitochondria, many of which were swollen and had clear matrix and disorganized cristae. The cristae nearly lacked glycogen and had abundant lipid droplets, which often tightly contacted mitochondria. The cytoplasm of hepatocy tes in birds from both ecologically unfavorable areas had numerous mitochondria with the same ultrastructure. In contrast to control, the hepatocyte cytoplasm: (1) contained a lot of glycogen; (2) there were many lipid droplets, which directly contacted glycogen granules; and (3) had more abundant peroxisomes. In addition to normal erythrocytes, the sinusoids contained erythrocytes with mitochondria, vesicles, and lipid droplets in their cytoplasm. Analysis of many micrographs of lipid droplets contacting glycogen granules, mitochondria, peroxisomes, and cisterns of smooth endo-plasmic reticulum allowed us to propose that glycogen is synthesized via gluconeogenesis from glycerol and products of fatty acid oxidation in the liver cell cytoplasm of rooks from ecologically unfavorable areas as distinct from control.
机译：在生活在放射性和化学污染地区的白嘴鸦（Corvus frugilegus）中研究了肝细胞的超微结构。研究了来自传统清洁区的白嘴鸦，寒鸦（Corvus monedula）和带帽乌鸦（Corvus cornix）（Corvidae家族）肝细胞的超微结构作为对照。对照肝细胞被证明含有大量的线粒体，其中许多是肿胀的并且具有透明的基质和混乱的cr。 ista几乎没有糖原并且具有丰富的脂滴，脂滴经常紧密接触线粒体。在两个生态不利地区的鸟类中，肝细胞的细胞质均具有大量具有相同超微结构的线粒体。与对照相比，肝细胞的细胞质：（1）含有大量糖原； （2）脂滴多，直接接触糖原颗粒。 （3）过氧化物酶体含量更高。除正常的红细胞外，正弦曲线还含有在细胞质中带有线粒体，囊泡和脂质滴的红细胞。对许多脂滴接触糖原颗粒，线粒体，过氧化物酶体和平滑内质网储水池的显微照片进行分析后，我们提出糖原是通过甘油的糖异生作用而合成的，并且是油菜籽肝细胞质中脂肪酸氧化产物的生态来源与控制区分开的不利区域。

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