Publications by authors named "Marion Cornuau"

Objectives: In France, embryo thawing concern 45.8% of attempts at assisted reproductive technologies excluding artificial inseminations. This proportion is constantly increasing for various reasons.

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Vaspin is a novel adipokine mainly expressed in visceral adipose tissue and closely related to obesity and insulin-resistance. Currently, data about its ovarian expression are limited to animal models and its role in human reproduction is largely unexplored. Our study's aims were then to characterise vaspin expression in the human ovary and to study in vitro its effects on granulosa cells physiology.

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Article Synopsis
  • Adipokines are molecules that may connect reproduction with energy metabolism, potentially explaining some infertility cases, especially in women with polycystic ovary syndrome (PCOS).
  • This study compared various adipokine levels in follicular fluid (FF) and ovarian granulosa cells (GCs) among three groups of women: those with PCOS, women with polycystic ovary morphology (ECHO), and control women, analyzing a total of 78 participants.
  • Results showed that PCOS women had higher levels of omentin and chemerin in their FF and GCs, while ECHO women had higher adiponectin levels; these variations suggest that certain adipokines may affect follicular growth and
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Apelin (APLN) is a recently discovered adipokine involved in the regulation of various metabolic functions. Its receptor, APLNR, is expressed in reproductive tissues, however, its role in human ovarian cells is unknown. In this study, we identified APLN and APLNR in human ovarian follicles and analyzed their expression in granulosa cells and follicular fluid obtained from obese and nonobese patients, with or without polycystic ovary syndrome (PCOS).

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INTELECTIN (ITLN) is an adipokine involved in the regulation of insulin sensitivity and inflammatory and immunity responses. Serum ITLN levels are lower in obese, diabetic, and polycystic ovary syndrome (PCOS) women than in control subjects. ITLN has never been studied in ovarian cells.

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Objective: To identify resistin in human ovarian follicles and investigate the effect and the molecular mechanisms associated with resistin on steroidogenesis in human granulosa cells (GCs).

Design: The effects of recombinant human resistin on the secretion of progesterone (P) and estradiol (E2) by cultured human GCs were investigated.

Setting: Academic institutions.

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Visfatin is a cytokine hormone and an enzyme involved in metabolic (obesity, type II diabetes) and immune disorders. Some data suggest a role of visfatin in ovarian function. Here, we identified visfatin in human follicles and investigated the molecular mechanisms involved in the regulation of its expression in response to insulin sensitizers, metformin (MetF) and rosiglitazone, in primary human granulosa cells (hGCs) and in a human ovarian granulosa-like tumour cell line (KGN).

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Background: Chemerin is a novel adipokine involved in the regulation of adipocyte development, inflammation and metabolic functions. To date, no role of this adipokine in reproductive functions has been described. In the present study, we identified chemerin and its receptor, CMKLR1 (chemokine-like receptor 1), in primary human granulosa cells (hGCs) and in a human ovarian granulosa-like tumour cell line (KGN).

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Aim: To seek differences between ductal carcinoma in situ (DCIS) according to the menopausal status of patients and to analyze their repercussions on patient care.

Patients And Methods: A multicenter retrospective study of 384 patients from 3 centers specialized in breast cancer surgery was carried out based on an analysis of the various characteristics (clinical, therapeutic, histologic, outcome) of DCIS between two groups of post- and pre-menopausal patients.

Results: At the time of diagnosis, 58.

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