K. Takewaki

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In female rats, persistent cornification of the vaginal epithelium (constant vaginal estrus) may occur spontaneously in intact individuals 1-3, or can be induced experimentally by different procedures, such as transplantation of testis immediately after birth*, injections of hormonic steroids during infancy (vide in/ra), parabiotic union with gonadectomized(More)
In Experiment 1, female rats were given a single subcutaneous injection of 1.25 mg 5alpha-dihydrotestosterone (DHT) or its propionate (DHTP) on day 5 of postnatal life. All of them showed regular estrous cycles as adults like untreated control animals. At about 60 days of age, the rats were ovariectomized and given 7 daily injections of 2 mg progesterone(More)
When rats ovariectomized at 3 days of age and given a single injection of 1.25 mg testosterone propionate on the next day became 60 days old, they were given 3 daily injections of 0.2 mug estradiol-17 beta followed by 7 daily combined injections of 2 mg progesterone and 0.2 mug estradiol. Incidence of deciduomata in reaction to uterine trauma applied on the(More)
Female rats were made persistent-estrous and anovulatory by giving a single injection of 1.25 mg of testosterone propionate 4 days after birth. The rats were ovariectomized when adult and given 7 daily injections of progesterone plus estradiol in amounts sufficient to condition the uteri fbr fbrmation of deciduomata in response to trauma. The administration(More)
In rodents, decidual cell reaction (DCR) occurs in response to blastocysts or artificial stimuli applied to the endometrium sensitized by an appropriate regimen of hormonal treatment.1 Evidence has recently accumulated suggesting the involvement of prostaglandins (PGs) and cyclic adenosine-3',5'-monophosphate (CAMP) in the incidence and development of(More)
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