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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Analytical chemistry 35 (1963), S. 1759-1760 
    ISSN: 1520-6882
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 78 (1956), S. 5978-5983 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1106
    Keywords: Arcuate nucleus ; Estradiol cytosol receptors ; Monosodium glutamate ; Anterior pituitary gland ; Prolactin ; LH ; FSH
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Experiments were performed to determine whether the neuroendocrine dysfunctions of rats treated neonatally with monosodium glutamate (MSG) could be related to a loss of cytoplasmic estrogen receptors. Female rats treated with MSG as neonates were ovariectomized as adults and killed by decapitation 2 or 3 weeks after ovariectomy. Body, gonadal and anterior pituitary gland weights in MSG-treated rats were depressed when compared to that seen in their littermate controls. Serum prolactin concentration was elevated in the MSG-treated rats. Serum luteinizing hormone (LH) concentration was significantly lower in MSG-treated rats than in controls at 2 weeks, but not at 3 weeks after ovariectomy, suggesting a sluggish postovariectomy rise of serum LH concentration. Serum follicle-stimulating hormone (FSH) concentration was not altered by the MSG treatment. The concentration of cytosol estrogen receptors in the anterior pituitary gland was similar to that of controls, but hypothalamic concentration of estrogen receptors decreased as a result of the MSG treatment. After dissection of different hypothalamic regions, it was found that the greatest depletion of the cytosol estrogen receptors occurred in the arcuate-median eminence region. The results raise the possibility that some reproductive impairments of MSG-treated rats could stem from a decrease in cytosol estrogen receptors in the arcuatemedian eminence region.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-0878
    Keywords: Anterior pituitary gland ; FSH cells ; LH cells ; Development ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Serum concentration of follicle-stimulating hormone (FSH) in the juvenile female rat increases independently from that of luteinizing hormone (LH). The objective of this study was to determine whether this increase in serum FSH is accompanied by a proliferation of FSH-cells greater than the proliferation of LH-cells. Thus, we measured circulating FSH and LH in female rats on days 3, 10, 13, 17, and 20, calculated the percentages of adenohypophyseal cells that contained FSH or LH on days 3, 10, and 20, and determined whether cells containing only FSH existed on day 10. Serum FSH concentrations on days 10 and 13 were significantly greater than those on days 3, 17, or 20. No differences existed in serum LH concentrations. Cells containing FSH or LH were distributed throughout the entire adenohypophyses of 3, 10, and 20-day-old females. Clusters of these cells were observed in the ventral regions of adenohypophyses of 3-day-old females. The percentages of adenohypophyseal cells containing FSH increased significantly from ∼9% in 3-day-old rats to ∼17% in 10-day-old rats and then decreased to ∼14% in 20-day-old animals. At all ages the percentages of adenohypophyseal cells containing FSH were similar to the percentages of cells containing LH. At 10 days of age, all cells containing FSH also contained LH and all cells containing LH also contained FSH. These data suggest that the increase in serum FSH in the juvenile female rat is associated with an increase in the percentage of adenohypophyseal cells containing FSH and that at this time all cells containing FSH also contain LH.
    Type of Medium: Electronic Resource
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