Metabolic effects of combined oral contraceptive preparations.
Fasting intermediary metabolite concentrations were measured in comparable groups of women either in the follicular or luteal phase of the menstrual cycle or taking low-dose estrogen combined oral contraceptive preparations. Blood total ketone bodies concentrations were significantly elevated in oral contraceptive users (p less than 0.05 v follicular and luteal groups) whilst blood alanine levels were lower (p less than 0.01 v follicular).
D020155:3-Hydroxybutyric Acid; D000328:Adult; D000409:Alanine / Q000097:blood*; D003277:Contraceptives, Oral, Combined / Q000378:metabolism*; D005260:Female; D005498:Follicular Phase; D006801:Humans; D006885:Hydroxybutyrates / Q000097:blood*; D016912:Levonorgestrel; D008183:Luteal Phase; D009640:Norethindrone / Q000378:metabolism*; D009644:Norgestrel / Q000378:metabolism*
D003277:Contraceptives, Oral, Combined; D006885:Hydroxybutyrates; D009644:Norgestrel; D016912:Levonorgestrel; D000409:Alanine; D009640:Norethindrone; D020155:3-Hydroxybutyric Acid