Article: Increased apoptosis in a variety of tissues of zinc-deficient rats.(Abstract)

Zinc deficient rats were prepared to investigate histopathological changes in thymus, testis, skin, esophagus, kidney and liver and the relationship between these changes and apoptosis. Seven-week-old male SD rats were given a Zn deficient diet (0% Zn diet) or a standard diet (0.02% Zn diet). The above-mentioned organs were excised 1, 2, 3, 4, 5, 10, 13, and 34 weeks after initiating diet administration. Then, these organs were examined morphologically, and apoptotic changes were analyzed by either the TdT- mediated dUTP - biotin nick end labeling (TUNEL) or electrophoresis. Significant morphological changes were seen only in rats on the 0% Zn diet. After 4 weeks, atrophy ...

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