نتایج جستجو برای: mullerian inhibiting substance
تعداد نتایج: 267258 فیلتر نتایج به سال:
This is a survey of the work intended to contribute to our knowledge of normal gonadal sex differentiation in birds and mammals. Special attention has been given to the fate of germ cells in a foreign environment. The original work was undertaken to support the concept of a meiosis-inducing substance. Gonads were combined in heterosexual pairs and grown in organ culture. Homoplastic, heteroplas...
BACKGROUND Hypothesizing that redundant functional ovarian reserve (FOR) at young ages may clinically obfuscate prematurely diminished FOR (PDFOR), we investigated in young oocyte donors genotypes and sub-genotypes of the FMR1 gene, in prior studies associated with specific ovarian aging patterns, and determined whether they already at such young age were associated with variations in ovarian r...
A system of 16 non-linear, delay differential equations with 66 parameters is developed to model hormonal regulation of the menstrual cycle of a woman from age 20 to 51. This mechanistic model predicts changes in follicle numbers and reproductive hormones that naturally occur over that time span. In particular, the model illustrates the decline in the pool of primordial follicles from age 20 to...
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