title: [The effect of estrogen deficiency, estrogen and estro-progestagene therapy on total plasma homocysteine and serum lipid peroxide levels in postmenopausal women].
abstract: OBJECTIVE
  Elevated plasma homocysteine (Hcy) concentration is a risk factor for atherosclerosis and venous thrombosis.
  
  
  METHODS
  an observational study.
  
  
  METHODS
  120 healthy women were recruited and divided in two subgroups--postmenopausal women (M-80 women) and premenopausal women (40 women) with normal menstruation as control group. 26 women with surgical menopause were treated with percutaneous estrogen therapy and remaining 54 women were treated with estro-progestagen replacement therapy. Measurements of FSH and estradiol was made using radioimmunoassay. HCY was assessed using enzymatic conversion method.
  
  
  RESULTS
  Concentrations of Hcy and lipid peroxides (LPO) in postmenopausal study group were higher than in the premenopausal. Treatment with estradiol (E2) alone or in combination with medroxyprogesterone acetate decreased LPO and Hcy concentrations to levels observed in premenopausal group.
  
  
  CONCLUSIONS
  Our results suggest that estrogens have a profound influence on Hcy and LPO levels. Reduction in Hcy levels after treatment lowers the production of free radicals and thus contributes to lipid peroxidation decrease and LPO levels reduction after therapy. A practical conclusion may be proposed: in postmenopausal women with elevated Hcy levels who require hormonal replacement therapy, Hcy level control is indicated in order to administer such a therapy, which decreases Hcy concentrations.
authors.affiliation: Katedra i Klinika Endokrynologii i Diabetologii Akademii Medycznej we Wroclawiu.
authors.forename: Grazyna
authors.initials: G
authors.lastname: Bednarek-Tupikowska
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Tupikowski
authors.forename: Bozena
authors.initials: B
authors.lastname: Bidzińska
authors.forename: Justyna
authors.initials: J
authors.lastname: Kuliczkowska
authors.forename: Alicja
authors.initials: A
authors.lastname: Filus
authors.forename: Andrzej
authors.initials: A
authors.lastname: Milewicz
mesh_terms: D000328:Adult; D050197:Atherosclerosis / Q000517:prevention & control; D016022:Case-Control Studies; D004305:Dose-Response Relationship, Drug; D004359:Drug Therapy, Combination; D015914:Estrogen Replacement Therapy; D004967:Estrogens / Q000172:deficiency*; D005260:Female; D006710:Homocysteine / Q000097:blood*; D006801:Humans; D008054:Lipid Peroxides / Q000097:blood*; D008875:Middle Aged; D017698:Postmenopause / Q000097:blood* / Q000187:drug effects*; D017697:Premenopause / Q000187:drug effects / Q000378:metabolism; D012307:Risk Factors; D016387:Women's Health
chemical_list: D004967:Estrogens; D008054:Lipid Peroxides; D006710:Homocysteine