نتایج جستجو برای: amh receptor
تعداد نتایج: 591799 فیلتر نتایج به سال:
Anti-Müllerian hormone (AMH) plays an important role in folliculogenesis. AMH null mice display an increased recruitment of primordial follicles. Nevertheless, these mice do not have proportionally more preovulatory follicles. Therefore, AMH null mice provide an interesting genetic model to study the regulation of species-specific number of preovulatory follicles. We studied the follicle pool t...
OBJECTIVE To evaluate a new fully automated assay measuring antimüllerian hormone (AMH; Roche Elecsys) against antral follicle count in women of reproductive age. DESIGN Prospective cohort study. SETTING Hospital infertility clinics and academic centers. PATIENT(S) Four hundred fifty-one women aged 18 to 44 years, with regular menstrual cycles. INTERVENTION(S) None. MAIN OUTCOME MEASU...
BACKGROUND Recently, a new marker, the anti-Müllerian hormone (AMH), has been evaluated as a marker of ovarian response. Serum AMH levels have been measured at frequent time-points during the menstrual cycle, suggesting the complete absence of fluctuation. The aim of this study was to evaluate whether serum AMH measurement on any day of the menstrual cycle could predict ovarian response in wome...
BACKGROUND The anti-Műllerian hormone (AMH) is secreted in women exclusively by the granulosa cells of the ovarian follicles. The serum level of AMH is a precise marker of follicle pool size. In recent clinical studies of polycystic ovary syndrome (PCOS), the serum levels of AMH were elevated about two to threefold. The use of metformin in women with infertility and PCOS has proved to be effici...
Our understanding of female reproductive function has been hampered by our inability to directly assess the number of non-growing primordial follicles present in the ovary, the ovarian reserve. Female reproductive hormones (FSH and LH, the inhibins and steroids) reflect the activity of the larger growing follicles and thus are largely informative of peri-ovulatory ovarian activity. In contrast ...
OBJECTIVE To analyse the usefulness of plasma anti-mullerian hormone (AMH) measurement as a tool for assessing ovarian reserve in a general infertility population. MATERIALS AND METHODS Plasma AMH levels were analysed in 238 women aged 18-46 years during day 3-5 of their menstrual cycle. All 238 patients had follicle stimulating hormone (FSH) levels less than 10 i.u./L, suggesting normal ovar...
BACKGROUND The objective of our study was to identify the correlations between the tests currently used in ovarian reserve assessment: anti-Mullerian hormone (AMH), follicle stimulating hormone (FSH) and antral follicle count (AFC) and to distinguish the most reliable markers for ovarian reserve in order to select an adequate strategy for the initial stages of infertility treatment. MATERIALS...
STUDY QUESTION Are anti-Müllerian hormone (AMH) levels reduced in girls with newly diagnosed cancer before the start of treatment? SUMMARY ANSWER AMH levels are already compromised in girls at the time of cancer diagnosis compared with healthy girls. WHAT IS KNOWN ALREADY In women diagnosed with cancer, evidence of reduced ovarian function has been described even before treatment has starte...
BACKGROUND Anti-Müllerian hormone (AMH) is produced by the granulosa cells of preantral and small antral follicles and its levels can be assessed in serum. Since the number of ovarian follicles declines with increasing age, AMH levels might be used as a marker for ovarian ageing. Therefore, we studied the relationship between AMH levels and ovarian response during ovarian stimulation for IVF. ...
BACKGROUND The role of serum anti-Müllerian hormone (AMH) as predictor of in-vitro fertilization outcomes has been much debated. The aim of the present study is to investigate the practicability of combining serum AMH level with biological age as a simple screening method for counseling IVF candidates of advanced reproductive age with potential poor outcomes prior to treatment initiation. MET...
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