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  • Title: Serum concentrations of reproductive hormones after administration of various anesthetics to immature and young adult male rats.
    Author: Nazian SJ.
    Journal: Proc Soc Exp Biol Med; 1988 Apr; 187(4):482-7. PubMed ID: 3127834.
    Abstract:
    Immature and young adult male rats were either castrated or unoperated. One of seven anesthetic agents (Rompun, Bio-Tal, Thiopental, pentobarbital, ketamine, halothane, or ether) was administered. When the animals were clearly anesthetized, they were decapitated. Control rats were decapitated without anesthesia. Serum concentrations of luteinizing hormone (LH), follicle stimulating hormone (FSH), prolactin, testosterone, and androstenedione were determined by radioimmunoassay. None of the anesthetics was clearly suitable for study of all these hormones. Most would be suitable for acute LH studies. Ketamine and halothane appeared inappropriate for FSH studies in immature rats. Pentobarbital, Rompun, and ether caused increases in serum prolactin. Most of the agents appeared to cause a reduction in serum testosterone in intact rats but an increase in castrated animals, suggesting an inhibition of testicular androgen secretion and a stimulation of adrenal androgen secretion.
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