Cessation of Transition-Phase Follicle Growth in the Guinea Pig by Follicle-Regulatory Protein1
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چکیده
منابع مشابه
The Growth of the Ovarian Follicle of the Guinea Pig under Normal and Pathological Conditions
1. The growth .energy of the granulosa cells in the ovarian follicles of normal guinea pig ovaries varies with the size of the follcle, and follows a definite growth curve. The growth energy in small follicles is relatively low, then a gradual rise takes place with increase in size of the follicle up to a maximum which is reached when the follicle attains medium size. This ascending part of the...
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The transfer reaction of [W!]methylamine into the acetylated B chain of oxidized insulin as catalyzed by several transglutaminases has been studied at pH ‘7.5 in the presence of calcium ion. The only radioactive product of the transfer reaction with each transglutaminase was identified as peptide-bound y-glutamic acid methylamide. Initial velocity and product inhibition patterns for the human p...
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The mechanisms that regulate the gradual exit of ovarian follicles from the non-growing, primordial pool are very poorly understood. A better understanding of the signals that initiate follicular growth in mammals, and of the conditions necessary for sustained growth of early preantral follicles in vitro, could have practical implications for contraception, alleviation of infertility, and regul...
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Two transglutaminases are found in homogenates of the inner root sheaths of guinea pig hair-follicles. One is indistinguishable from the well-characterized liver transglutaminase [J. Biol. Chem., 246, 1093 (1971)]. The other, which is present in far greater quantity, has not been detected in other organs or tissues. Gel filtration and polyacrylamide gel electrophoresis studies indicate that the...
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The predominant pattern of follicle development in pigs is characterized by continuous activation, slow growth to the antral stage, and rapid growth to 4 to 5 mm followed by atresia. The only time that this pattern is broken is when a small portion of the follicle population is selected for ovulation. The mechanisms that regulate the selection of ovulatory follicles are not well understood. How...
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 1987
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod37.4.812