| Literature DB >> 1165881 |
Abstract
Levels of progesterone, estradiol, LH, and FSH were measured in daily serum samples obtained from 4 subjects during a control cycle and during the first and fourth menstrual cycles after insertion of an intrauterine device (IUD). In addition, progesterone and estradiol were measured in serum samples obtained from 6 women 3, 4, or 5 months after IUD insertion, and from 6 women more than 1 year after IUD insertion. These measurements were compared to the data obtained from study of a large group of normal cycles. The results indicated that the IUD does not influence follicular maturation, time of ovulation, or corpus luteum function. The IUD did exert a local effect on the endometrium, causing the onset of menses to take place when steroid levels were higher than in control cycles.Entities:
Keywords: Biology; Contraception; Contraceptive Methods--side effects; Endocrine System; Estradiol--analysis; Estrogens; Family Planning; Follicle Stimulating Hormone--analysis; Gonadotropins; Gonadotropins, Pituitary; Hormones; Iud, Copper Releasing--side effects; Iud, Unmedicated--side effects; Iud--side effects; Luteinizing Hormone--analysis; Physiology; Progestational Hormones; Progesterone--analysis
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Year: 1975 PMID： 1165881
Source DB: PubMed Journal: Obstet Gynecol ISSN： 0029-7844 Impact factor: 7.661