Morphological, histochemical and biochemical studies of the testis of mice with testicular feminization (tfm/y) reveal a large accumulation of lipids in Leydig cells and in Sertoli cells. In Leydig cells of tfm/y mice, lipid droplets do not exhibit the special relationship with smooth endoplasmic reticulum that exists in normal adult Leydig cells. Compared to the surgically-cryptorchid control, the tfm/y testis contains more lipid in Leydig cells but less in Sertoli cells.
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