Overt Leptin Response to Controlled Ovarian Hyperstimulation Negatively Correlates with Pregnancy Outcome in in Vitro Fertilization--embryo Transfer Cycle

Overview

Journal J Hum Reprod Sci

Date 2012 Nov 20

PMID 23162359

Citations 7

Authors

Jana Chakrabarti

Ratna Chatterjee

Sourendrakanta Goswami

Baidyanath Chakravarty

Syed Nazrul Kabir

Affiliations

Soon will be listed here.

Abstract

Context: A critical body mass of adipose tissue is essential for the normal development of female reproductive functions. Leptin, an adipocyte-derived hormone encoded by the 'Ob' gene has been proposed as a peripheral signal indicating the adequacy of nutritional status for reproductive functions. It is reported as a direct regulator of gametogenic and steroidogenic potential of ovary. Though leptin is widely present in reproductive tissues, its relationship to reproductive hormones is still poorly understood.

Aims: Present investigation attempts to explore ovarian response to secretory profile of leptin and its impact on pregnancy outcome in women undergoing controlled ovarian hyperstimulation for in vitro fertilization and embryo transfer (IVF-ET).

Settings And Design: Patients enrolled for IVF-ET underwent pituitary-ovarian suppression by 'Long Protocol' GnRH-agonist downregulation followed by ovarian stimulation.

Materials And Methods: Sera were procured at different phases of IVF-ET for the assay of estradiol, progesterone, human chorionic gonadotropin, and for leptin. Ovarian follicular fluids were also assayed for leptin. Luteinized granulosa cells were cultured in vitro to evaluate their steroidogenic potential.

Statistical Analysis Used: Statistical analyses were done by student's t-test, ANOVA, and Chi-square tests as applicable. All results were expressed as Mean ± SE. P values < 0.05 were considered significant.

Results: Positive correlation was observed between serum and ovarian follicular fluid leptin. A negative correlation was noted between the serum leptin levels and endometrial thickness.

Conclusions: Elevated leptin response may exert adverse impacts on pregnancy success during IVF-ET possibly by modulating uterine receptivity.

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