title: Leptin and leptin receptor levels in pregnant women with hyperemesis gravidarum.
abstract: OBJECTIVE
  To investigate the association between the leptin, leptin receptor and hormone levels and hyperemesis gravidarum, and to determine whether these two parameters may be early markers for hyperemesis gravidarum.
  
  
  METHODS
  The study group consisted of 18 pregnant women with hyperemesis gravidarum and the control group consisted of 18 healthy pregnant women. Demographic characteristics were recorded and body mass index (BMI) values were calculated for all the pregnant women. Serum leptin, leptin receptor, insulin, cortisol, thyroid hormone and human chorionic gonadotrophin (hCG) levels were measured.
  
  
  RESULTS
  When the two groups were compared with respect to leptin levels, the group with hyperemesis gravidarum was found to have significantly higher leptin levels (P = 0.037). No intergroup differences were observed in serum cortisol, insulin, hCG, thyroid hormone levels or BMI values. In the group with hyperemesis gravidarum, an inverse correlation was detected between cortisol and leptin (r = -0.762, P < 0.01), and hCG and thyroid-stimulating hormone (r = -0.503, P < 0.05), whereas a significant correlation was detected between insulin and leptin (r = 0.538, P < 0.05), leptin and BMI (r = 0.711, P < 0.01), and between TT3 and hCG (r = 0.605, P < 0.01).
  
  
  CONCLUSIONS
  It was concluded that leptin could play a role in, and be defined as, a marker of hyperemesis gravidarum.
authors.affiliation: Department of Gynecology and Obstetrics, Haydarpaşa Numune Training and Research Hospital, Istanbul, Turkey. nurettinaka@hotmail.com
authors.forename: Nurettin
authors.initials: N
authors.lastname: Aka
authors.forename: Sacide
authors.initials: S
authors.lastname: Atalay
authors.forename: Sema
authors.initials: S
authors.lastname: Sayharman
authors.forename: Düzgün
authors.initials: D
authors.lastname: Kiliç
authors.forename: Gültekin
authors.initials: G
authors.lastname: Köse
authors.forename: Tuncay
authors.initials: T
authors.lastname: Küçüközkan
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D006063:Chorionic Gonadotropin / Q000097:blood; D005260:Female; D005865:Gestational Age; D006801:Humans; D006854:Hydrocortisone / Q000097:blood; D006939:Hyperemesis Gravidarum / Q000097:blood / Q000378:metabolism*; D007328:Insulin / Q000097:blood; D020738:Leptin / Q000097:blood / Q000378:metabolism*; D011247:Pregnancy; D011446:Prospective Studies; D011956:Receptors, Cell Surface / Q000097:blood / Q000378:metabolism*; D054411:Receptors, Leptin; D013972:Thyrotropin / Q000097:blood
chemical_list: D006063:Chorionic Gonadotropin; D007328:Insulin; C515448:LEPR protein, human; D020738:Leptin; D011956:Receptors, Cell Surface; D054411:Receptors, Leptin; D013972:Thyrotropin; D006854:Hydrocortisone