title: Total cortisol levels are reduced in the periovulatory follicle of infertile women with minimal-mild endometriosis.
abstract: OBJECTIVE
  To measure and compare concentrations of total and free glucocorticoids with oocyte fertilizing capacity in the follicular fluid (FF) of women with minimal-mild endometriosis and tubal damage.
  
  
  METHODS
  Follicular fluid was collected from individual periovulatory follicles during oocyte retrieval for in vitro fertilization (IVF) in natural cycles. Total and free levels of cortisol and cortisone were measured using specific radioimmunoassays after chloroform extraction.
  
  
  RESULTS
  Cortisol concentrations in women with minimal-mild endometriosis were significantly lower compared with controls (women with tubal infective damage) (258 versus 328 nmol/L, P < 0.02). There was no correlation between total or free concentrations of cortisol or cortisone and the fertilization capacity of the oocyte.
  
  
  CONCLUSIONS
  Total cortisol levels are lower in the follicles of women with endometriosis. Our findings provide further evidence of follicular dysfunction contributing to the subfertility associated with minimal-mild endometriosis.
authors.affiliation: Division of Obstetrics and Gynaecology, St Michael's Hospital, University of Bristol, UK. mike.smith@bris.ac.uk
authors.forename: M P
authors.initials: MP
authors.lastname: Smith
authors.forename: S D
authors.initials: SD
authors.lastname: Keay
authors.forename: F C
authors.initials: FC
authors.lastname: Margo
authors.forename: C R
authors.initials: CR
authors.lastname: Harlow
authors.forename: P J
authors.initials: PJ
authors.lastname: Wood
authors.forename: D J
authors.initials: DJ
authors.lastname: Cahill
authors.forename: M G R
authors.initials: MG
authors.lastname: Hull
mesh_terms: D016022:Case-Control Studies; D003348:Cortisone / Q000378:metabolism; D004715:Endometriosis / Q000150:complications / Q000378:metabolism*; D005260:Female; D005307:Fertilization in Vitro; D015571:Follicular Fluid / Q000378:metabolism*; D006801:Humans; D006854:Hydrocortisone / Q000378:metabolism*; D007247:Infertility, Female / Q000209:etiology / Q000378:metabolism* / Q000628:therapy; D008954:Models, Biological; D010060:Ovulation / Q000378:metabolism
chemical_list: D003348:Cortisone; D006854:Hydrocortisone