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用透射电镜观察了生后至8个月龄大鼠肝(贝宁)脂细胞的超微结构并讨论了其功能。新生鼠的(贝宁)脂细胞呈幼稚状态,核仁不明显;生后1—2个月的大鼠(贝宁)脂细胞核切迹深而多;成鼠(贝宁)脂细胞核质比率减小,核仁明显,粗面内质网发达。(贝宁)脂细胞含较多脂滴和致密小体,在脂滴和致密小体周围有糖元颗粒包绕,这支持了糖元可由吞饮摄取的葡萄糖合成的观点;并认为碳水化合物参与脂肪的合成。在狄氏隙内有大量胶原原纤维,提出(贝宁)脂细胞有合成胶原原纤维的作用。
Transmission electron microscopy was used to observe the ultrastructure of rat liver (Benin) adipocytes from birth to 8 months old and to discuss its function. Newborn rats (Benin) adipocytes naive state, nucleoli are not obvious; 1 to 2 months after birth rats (Benin) adipose cell nuclear notch deep and more; into rats (Benin) fat cells, the ratio of nuclear to cytoplasm Reduce, obvious nucleolus, rough endoplasmic reticulum developed. (Benin) Adipocytes contain more lipid droplets and dense bodies surrounded by lipid particles around the lipid droplets and compact bodies, supporting the suggestion that glycogen can be synthesized by glucose uptake; and that carbohydrates Participate in fat synthesis. There is a large number of collagen fibrils in the Dirspray, suggesting that (Benin) adipocytes have the effect of synthesizing collagen fibrils.