title: The utility of serum leptin and follicular fluid leptin, estradiol, and progesterone levels during an in vitro fertilization cycle.
abstract: OBJECTIVE
  To prospectively evaluate serum and follicular fluid leptin, estradiol, and progesterone levels during in vitro fertilization.
  
  
  METHODS
  Prospective observational study measuring serum levels at six points during the IVF cycle and follicular fluid at the time of retrieval.
  
  
  RESULTS
  Serum leptin and estradiol levels both significantly increased for the individual patients during the IVF stimulation process. None of the leptin levels differed based on pregnancy outcome. BMI significantly correlated with all leptin levels. Follicular fluid estradiol correlated with serum estradiol only in pregnant patients (r = 0.97, p<0.01) and was unrelated in non-pregnant patients (r=-0.15, p=0.81).
  
  
  CONCLUSIONS
  Serum and follicular leptin levels are highly correlated. Leptin levels increase during the IVF cycle and vary between patients based on maternal BMI, but do not correlate with other serum hormone levels or pregnancy outcome. Pregnancy outcome success was reflected in the relationship between follicular fluid and serum levels of estradiol, independent of leptin levels.
authors.affiliation: Tripler Army Medical Center, Honolulu, HI, USA.
authors.forename: Micah J
authors.initials: MJ
authors.lastname: Hill
authors.forename: Catherine F T
authors.initials: CF
authors.lastname: Uyehara
authors.forename: Glenn M
authors.initials: GM
authors.lastname: Hashiro
authors.forename: John L
authors.initials: JL
authors.lastname: Frattarelli
mesh_terms: D000328:Adult; D015992:Body Mass Index; D004958:Estradiol / Q000032:analysis / Q000097:blood*; D005260:Female; D005307:Fertilization in Vitro; D015571:Follicular Fluid / Q000737:chemistry*; D006801:Humans; D020738:Leptin / Q000032:analysis / Q000097:blood*; D011247:Pregnancy; D011256:Pregnancy Outcome; D011374:Progesterone / Q000032:analysis / Q000097:blood*
chemical_list: D020738:Leptin; D011374:Progesterone; D004958:Estradiol