Endometriosis Knowledgebase


A repository for genes associated with endometriosis

Results


PMID 10899494
Gene Name INHB
Condition Endometriosis
Association Associated
Population size 30
Population details 30 (20 women with endometriosis, 10 with tubal factor)
Sex Female
Infertility type Female infertility
Other associated phenotypes Endometriosis, Infertility
Secretion of inhibin B during ovarian stimulation is decreased in infertile women with endometriosis.

Fertil Steril. 2000 Jul;74(1):35-40.

Dokras, A| Habana, A| Giraldo, J| Jones, E

Yale University School of Medicine, New Haven, Connecticut, USA. anuja-dokras@iowa.edu

OBJECTIVE(S): To determine the levels and pattern of inhibin B secretion during ovarian stimulation in patients with endometriosis and to evaluate the correlation between inhibin B levels and variables of follicular and oocyte development. DESIGN: Retrospective cohort study. SETTING: IVF center. PATIENT(S): Women with endometriosis (n = 20) and tubal factor (n = 10) as the only cause of infertility. INTERVENTION(S): Inhibin B levels were measured during gonadotropin stimulation on day 1, days 8-11, day of hCG administration, and oocyte retrieval. MAIN OUTCOME MEASURE(S): Patterns and levels of inhibin B secretion were compared in the two groups. Other variables analyzed were age, days of gonadotropin stimulation and total ampules used, oocytes retrieved, and the fertilization and pregnancy rate. RESULT(S): Inhibin B levels and number of oocytes retrieved were significantly lower in patients with endometriosis than in the control group. Two patterns of inhibin B secretion were noted: It peaked in the midfollicular phase or on the day of hCG administration. In contrast, E2 levels peaked on the day of hCG administration. Inhibin B in the midfollicular phase in both groups correlated positively with number of oocytes retrieved. In addition, E2 and inhibin B levels in the midfollicular phase correlated positively. CONCLUSION(S): Decreased inhibin B secretion in patients with endometriosis suggests impaired granulosa cell function. Inhibin B may serve as an alternate marker to assess follicular development or to predict the number of oocytes retrieved.

Mesh Terms: Adult| Biomarkers| Cohort Studies| Endometriosis/complications/*metabolism| Estradiol/metabolism| Female| Granulosa Cells/physiology| Humans| Infertility, Female/complications/*metabolism| Inhibins/*secretion| *Ovulation Induction| Pregnancy|