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The experimental female rats were ovariectomized and after 14day, they were injected intramuscullarly with estrogen of single dose, 2/100gm body weight. After hormone injection, the animals were sacrificed by ether inhalation, the salivary glands were removed for microscopic examination and the histochemical preparations were observed. The results were as followed; In the submaxillary gland of ovariectomized rats, the acinar cells have lesser PAS reactivity than control group, and-SH group reaction were slight. In the estrogen injected-ovariectomized rats, aciner cells and striated duct cells have high reactivities for PAS, and-SS and SH group reaction were more increased than control group.
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