The Fine Structure of Human Subcutaneous Fat Cells
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概要
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1. The cytoplasm of human subcutaneous fat cells is displaced towards the peripheral area and contains fine particles, mitochondria, small fat droplets and endoplasmic reticulum. Usually mitochondria present a dark appearance and some of them are associated with fat droplets. These structural changes of mitochondria may indicate a step in the process of their fat metabolism rather than degeneration.2. The periphery of the fat cell is characterized by a triple layered membrane which consists of plasma membrane, a light interspace and an outer membranous layer.3. In the intercellular spaces of fat tissue, mature and immature collagen fibrils are observed. From the various points of view, it is suggested that fat cells may possess fiber-forming capacity.4. Adventitial cells of capillaries in the fat tissue likewise demonstrate this triple layered membrane. In their cytoplasm numerous pinocytotic vesicles are dis. tributed along the plasma membrane.5. It is suggested that fat cells may originate from adventitial cells of capillaries.
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国際組織細胞学会 | 論文
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