2. Artificial induction of gonadal maturation and ovulation
نویسندگان
چکیده
منابع مشابه
In Vivo Induction of Oocyte Maturation and Ovulation in Zebrafish
The maturation of fish oocytes is a well-characterized system induced by progestins via non-genomic actions. In a previous study, we demonstrated that diethylstilbestrol (DES), a non-steroidal estrogen, induces fish oocyte maturation via the membrane progestin receptor (mPR). Here, we attempted to evaluate the effect of DES as an environmental endocrine disrupting chemical (EDC) upon fish oocyt...
متن کاملGonadal growth and maturation of sea urchins
characterized by intra-gonadal nutrient storage and its use for gametogenesis (Walker et al., 2001). Sea urchin gonads contain two main types of cells: germ cells and nutritive phagocytes, somatic cells common in both sexes that store nutrients necessary for gametogenesis (Walker, 1982). Before the initiation of gametogenesis, the gonads increase in size by accumulating nutrients such as protei...
متن کاملInduction of ovulation.
Ovulation has been induced by clomiphene citrate and human gonadotropins in infertile women. Clomiphene should be the first choice in anovulatory women with active ovaries as indicated by basic levels of estrogens in blood or urine, in women with post-pill amenorrhea even if their ovaries are quiescent and in women with functional abnormalities of the hypothalamus or pituitary. Human gonadotrop...
متن کاملThe role of androgens in follicle maturation and ovulation induction: friend or foe of infertility treatment?
BACKGROUND Effects of androgens on follicle maturation have been controversial for some time. Here, we review the potential of their applications in improving human ovulation induction, based on human and animal data, reported in the literature. METHODS We reviewed the published literature for the years 2005-2011, using relevant key words, in PubMed, Medline and Cochrane reviews, and then per...
متن کاملI-35: Induction of Ovulation in Clomiphen Resistant
Polycystic ovary syndrome (PCOS) is a heterogeneous disorder in which chronic anovulation is a common feature despite the presence of multiple micro- structures in the ovaries. A growing body of evidence has suggested that serum hyperinsulinemia and as the result hyperandrogenemia contributes to the excess ovarian androgen secretion observed in women with PCOS. The standard therapy for anovulat...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 2009
ISSN: 1349-998X,0021-5392
DOI: 10.2331/suisan.75.872