Fluid regulation and reproductive cyclicity in female rats treated neonatally with testosterone and methandrostenolone.
Female rats injected with 1 mg of testosterone propionate on day 5 after birth weighed significantly more during the immediate postpubertal period than methandrostenolone-treated (1 mg) or vehicle-injected control females. There were no differences between groups in 24-hour intakes of food or water, when expressed on a per unit body weight basis. Testosterone- and methandrostenolone-treated rats ingested less water than controls in response to acute extracellular dehydration but not after cellular dehydration. The volume of the 'sexually dimorphic nucleus' of the preoptic area was significantly greater in brains taken from the two steroid-injected groups compared to control females. Testosterone had a stronger androgenic effect than methandrostenolone in terms of disrupting the estrous cycle.[1]References
- Fluid regulation and reproductive cyclicity in female rats treated neonatally with testosterone and methandrostenolone. Lemoine, J., Kucharczyk, J. Horm. Res. (1985) [Pubmed]
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