| Literature DB >> 3123135 |
L Videla-Rivero1, J J Etchepareborda, E Kesseru.
Abstract
Early chorionic activity was assessed in the premenstrual days by means of serum HCG beta-fraction. As control, a group of women with no contraceptive use was studied; early chorionic activity was detected in 31.8% of the cycles. In the group bearing an inert IUD the incidence was 20%, which did not differ from the control; while in the medicated IUD groups (Cu-IUD and LNG-IUD) the incidences were 4.8% and nil, respectively. Both medicated IUD groups showed a significant difference when compared with the control, as well as the inert IUD groups. The meaning of these findings, pointing out differences in the main mechanism of action between inert and medicated IUDs, is discussed.Entities:
Keywords: Biology; Comparative Studies; Contraception; Contraceptive Methods; Contraceptive Mode Of Action; Endocrine System; Family Planning; Fertilization; Gonadotropins; Gonadotropins, Chorionic; Hormones; Implantation; Implantation Suppression; Iud; Iud, Copper Releasing; Iud, Hormone Releasing; Iud, Unmedicated; Physiology; Pregnancy; Pregnancy, First Trimester; Reproduction; Reproductive Control Agents; Research Methodology; Studies
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Year: 1987 PMID： 3123135 DOI： 10.1016/0010-7824(87)90017-5
Source DB: PubMed Journal: Contraception ISSN： 0010-7824 Impact factor: 3.375