title: [Usefulness of serum inhibin B measurement for evaluation of ovarian reserve in controlled ovarian hyperstimulation].
abstract: OBJECTIVE
  To assess usefulness of serum inhibin B (INHB) measurement for evaluation of ovarian function.
  
  
  METHODS
  Serum INHB level on day 3 of menstrual cycle was determined by enzyme labeled immunosorbent assay (ELISA) in 96 cases of in vitro fertilization and embryo transfer (IVF-ET). The patients were classified into 3 groups including (1) poor response (n = 6), normal response (n = 72), and over response (n = 18) according to their response to ovary stimulation. In addition, serum follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E(2)) levels were also determined by chemiluminescent microparticle immunoassay in these patients. Evaluation of the INHB measurement and related factors was performed by statistical analysis.
  
  
  RESULTS
  Serum INHB levels in poor, normal and over-response groups were (28 +/- 20), (85 +/- 42), (92 +/- 34) pg/ml; FSH levels were (11.9 +/- 5.3), (7.5 +/- 2.6), (7.2 +/- 1.7) U/L; E(2) levels on day 3 of human chorionic gonadotropin (hCG) administration were (2558 +/- 2108), (9366 +/- 4472), (18 392 +/- 9655) pmol/L; numbers of retrieved oocytes per cycle were (0.6 +/- 0.4), (8.7 +/- 3.6), (14.3 +/- 2.9); top grade embryos were (0.4 +/- 0.3), (3.8 +/- 1.9), (4.6 +/- 1.7); pregnancy rates were 16.7%, 36.1%, 61.1%, respectively. INHB level was negatively correlated to FSH (r = -0.222, P < 0.05) and FSH/LH (r = -0.371, P < 0.05); while positively correlated to E(2) on the day of hCG administration (r = 0.336, P < 0.05), number of retrieved oocytes (r = 0.404, P < 0.05), number of quality embryos (r = 0.323, P < 0.05) and pregnancy rate (r = 0.246, P < 0.05), respectively.
  
  
  CONCLUSIONS
  INHB test may reflect the ovarian reserve which is of clinic importance in the guidance of controlled ovarian hyperstimulation.
authors.affiliation: Reproductive Medical Center, Zhongshan Boai Hospital, Zhongshan, Guangdong Province 528403, China.
authors.forename: Ri-ran
authors.initials: RR
authors.lastname: Wu
authors.forename: Yue-chan
authors.initials: YC
authors.lastname: Liao
authors.forename: Yun
authors.initials: Y
authors.lastname: Ye
authors.forename: Yan
authors.initials: Y
authors.lastname: Du
authors.forename: Wan-na
authors.initials: WN
authors.lastname: Ke
authors.forename: Xu-bin
authors.initials: XB
authors.lastname: Zhang
authors.forename: Guang-lun
authors.initials: GL
authors.lastname: Zhuang
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000494:pharmacology; D004624:Embryo Transfer; D004797:Enzyme-Linked Immunosorbent Assay; D004958:Estradiol / Q000097:blood; D005260:Female; D005307:Fertilization in Vitro; D005640:Follicle Stimulating Hormone / Q000097:blood; D006801:Humans; D007247:Infertility, Female / Q000097:blood / Q000628:therapy; D007265:Inhibins / Q000097:blood*; D007986:Luteinizing Hormone / Q000097:blood; D010053:Ovary / Q000187:drug effects / Q000502:physiology*; D011237:Predictive Value of Tests; D011247:Pregnancy; D018873:Pregnancy Rate; D013480:Superovulation
chemical_list: D006063:Chorionic Gonadotropin; C422364:inhibin B; D004958:Estradiol; D007265:Inhibins; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone