Comparison of follicular fluid amphiregulin and EGF concentrations in patients undergoing IVF with different stimulation protocols.
Epidermal growth factor (EGF)-like growth factors, such as amphiregulin (AR) and EGF, have emerged as mediators to propagate Luteinizing hormone (LH) stimulus for the oocyte maturation throughout the preovulatory follicle, because cumulus cells and oocytes express few or no LH receptors. This study was to compare AR and EGF concentrations in follicular fluid (FF) among four controlled ovary stimulation (COS) protocols and to investigate the relationship between FF EGF-like growth factors and COS outcomes. Ninety-five patients who underwent in vitro fertilization-embryo transfer (IVF-ET) were treated by four different COS protocols, including gonadotropin-releasing hormone agonist (GnRH-a) long protocol, GnRH-a ultra-long protocol, GnRH-a short protocol, and GnRH antagonist protocol. FF was taken on oocyte retrieval day. FF AR and EGF concentrations were measured and their correlations with COS outcomes were analyzed. FF AR concentration was significantly different from each other among four COS protocol groups (GnRH-a ultra-long protocol group, 186.12 ng/ml; GnRH-a long protocol group, 128.35 ng/ml; GnRH antagonist protocol group, 108.23 ng/ml; GnRH-a short protocol group, 77.13 ng/ml, p < 0.05). FF AR concentrations were higher in GnRH-a ultra-long and long protocol groups, while number of oocytes retrieval, available embryos, and good quality embryos in these two groups were also significantly higher than GnRH-a short protocol group and GnRH antagonist protocol group. FF AR concentration was positively correlated with available embryos, but negatively correlated with serum LH level on hCG day. FF EGF concentration had no relationship with COS parameters. Different COS protocols might have variable effects on AR synthesis. FF AR might be a good indicator to predict the number of oocytes and embryos. FF AR elevation may result in increasing the number of oocyte retrieval and embryo generation, consequently increased cumulative pregnancy rate.
Center for Reproductive Medicine, Department of Obstetrics and Gynecology, Peking University Third Hospital, No. 49, Huayuan North Road, Haidian District, Beijing, 100191, China.
Nana
N
Liu
Yanmin
Y
Ma
Rong
R
Li
Hongyan
H
Jin
Min
M
Li
Xiang
X
Huang
Huai L
HL
Feng
Jie
J
Qiao
D000328:Adult; D066258:Amphiregulin; D066255:EGF Family of Proteins; D004797:Enzyme-Linked Immunosorbent Assay; D004815:Epidermal Growth Factor / Q000378:metabolism*; D004958:Estradiol / Q000097:blood; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods*; D005640:Follicle Stimulating Hormone / Q000494:pharmacology; D015571:Follicular Fluid / Q000737:chemistry*; D006023:Glycoproteins / Q000378:metabolism*; D007987:Gonadotropin-Releasing Hormone / Q000037:antagonists & inhibitors / Q000494:pharmacology; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins / Q000378:metabolism*; D054315:Oocyte Retrieval; D010053:Ovary / Q000187:drug effects; D010062:Ovulation Induction; D011247:Pregnancy; D011994:Recombinant Proteins / Q000494:pharmacology; D020554:Sperm Injections, Intracytoplasmic; D013268:Stimulation, Chemical; D013739:Testosterone / Q000097:blood; D055815:Young Adult
C587848:AREG protein, human; D066258:Amphiregulin; D066255:EGF Family of Proteins; D006023:Glycoproteins; D036341:Intercellular Signaling Peptides and Proteins; D011994:Recombinant Proteins; D007987:Gonadotropin-Releasing Hormone; D013739:Testosterone; D004958:Estradiol; D004815:Epidermal Growth Factor; D005640:Follicle Stimulating Hormone