The proportion of cleaved anti-Mullerian hormone is higher in serum but not follicular fluid of obese women independently of polycystic ovary syndrome

REPRODUCTIVE BIOMEDICINE ONLINE

卷:41

Article

Peigne, Maeliss^1,2,3  Pigny, Pascal^1,4  Pankhurst, Michael W.⁵  Drumez, Elodie^6,7,8  Loyens, Anne¹  Dewailly, Didier^1,3  Catteau-Jonard, Sophie^1,3  Giacobini, Paolo¹ 

[1] Univ Lille, INSERM, CHU Lille, LilNCog Lille Neurosci & Cognit U1172, F-59000 Lille, France

[2] Univ Sorbonne Paris Nord, Hop Jean Verdier, AP HP, Serv Med Reprod & Preservat Fertil, F-93143 Bondy, France

[3] CHU Lille, Serv Gynecol Medicale, Hop Jeanne Flandre, F-59000 Lille, France

[4] CHU Lille, Ctr Biol Pathol, Serv Biochim & Hormonol, F-59000 Lille, France

[5] Univ Otago, Sch Biomed Sci, Dept Anat, Dunedin, New Zealand

[6] Univ Lille, CHU Lille, ULR METRICS Evaluat Technol Sante & Prat Med 2694, F-59000 Lille, France

[7] CHU Lille, Dept Biostat, F-59000 Lille, France

[8] HU Lille, Unite Methodol Biostat & Data Management, F-59000 Lille, France

关键词: AMH;    BMI;    Follicular fluid;    Molecular forms;    Obesity;    PCOS;   

DOI  :  10.1016/j.rbmo.2020.07.020

来源: Elsevier

【 摘 要 】

Research question: Does the relative distribution of anti-Mullerian hormone (AMH) isoforms differ between patients depending on their body mass index (BMI) and polycystic ovary syndrome (PCOS) status in serum and follicular fluid? Design: Obese and normal weight patients (PCOS [n = 70]; non-PCOS [n = 37]) were selected for this case-control study in the serum. Between 2018 and 2019, obese (n = 19) and normal weight (n = 20) women with or without PCOS who were receiving IVF treatment were included in the follicular fluid study. The bio-banked serums and follicular fluid were tested for total AMH (proAMH and AMH(N,C) combined) and proAMH using an automatic analyzer. The AMH prohormone index (API = [proAMH]/[total AMH]x 100) was calculated as an inverse marker of conversion of proAMH to AMH(N,C), with only the latter isoform that could bind to the AMH receptor complex. Results: The API was not significantly different between controls and women with PCOS, whereas obese women had a lower API compared with their normal weight counterparts. Grouping PCOS and controls, a lower API was found in obese versus normal weight women, suggesting a greater conversion of proAMH to AMH(N,C). The API in the serum was significantly correlated with metabolic parameters. In the follicular fluid, API is not different between obese and normal weight women independently of PCOS and is higher than in the concomitant serum. Conclusions: The proportion of inactive form of AMH in the serum is higher in normal weight versus obese women but not in the follicular fluid, independently of PCOS. The conversion of proAMH into the cleaved isoform is likely to occur in extra-ovarian tissues and to exacerbate in obese individuals.

【 授权许可】

Free