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Lipid and biochemical changes after low-dose oral contraception.
Contraception. 1992 Sep; 46(3):227-41.C

Abstract

A randomized double-blind study of the metabolic effects of 2 low-dose combined oral contraceptives was carried out in Singaporean women. The subjects comprised 58 women randomly allocated to two treatment groups (29 each): norethisterone 1 mg/ethinyl estradiol 35 micrograms (NET/EE) or levonorgestrel 150 micrograms/ethinyl estradiol 30 micrograms (LNG/EE) and a control group of 23 women using intra-uterine devices (IUD). Blood samples were taken on admission and at 3 and 12 months after pills or insertion of IUDs. Fasting glucose levels were decreased while 2h glucose and triglyceride were increased throughout the treatment period in NET/EE group [corrected]. LNG/EE group only showed significant increase of 2h glucose at 12 months and decrease of LDL cholesterol at 3 months while total cholesterol was significantly suppressed at 3 and 12 months [corrected]. The atherogenic index, LDL/HDL cholesterol was significantly reduced by 12 months. Both groups had no change in hemoglobin, hematocrit and total protein levels but alkaline phosphatase, bilirubin and aspartate transaminase (SGOT) were suppressed. While NET/EE suppressed albumin significantly, this was not observed with LNG/EE group. However, these differences observed with use of each pill preparations, were not so obvious between treatment groups and control. Changes in total, HDL and LDL cholesterol and SGOT were not significantly different than the IUD group. Furthermore, except for 2h glucose, there was no increase in the number of abnormal parameters after treatment. On the contrary, there was a reduction of abnormal values in most liver function parameters. Thus, except for glucose intolerance, the observed changes in metabolic parameters may not constitute any clinical significance.(ABSTRACT TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

Department of Obstetrics and Gynecology, National University Hospital, National University of Singapore.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Comparative Study
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

1451519

Citation

Loke, D F., et al. "Lipid and Biochemical Changes After Low-dose Oral Contraception." Contraception, vol. 46, no. 3, 1992, pp. 227-41.
Loke DF, Ng CS, Holck S, et al. Lipid and biochemical changes after low-dose oral contraception. Contraception. 1992;46(3):227-41.
Loke, D. F., Ng, C. S., Holck, S., Hall, P. E., & Ratnam, S. S. (1992). Lipid and biochemical changes after low-dose oral contraception. Contraception, 46(3), 227-41.
Loke DF, et al. Lipid and Biochemical Changes After Low-dose Oral Contraception. Contraception. 1992;46(3):227-41. PubMed PMID: 1451519.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Lipid and biochemical changes after low-dose oral contraception. AU - Loke,D F, AU - Ng,C S, AU - Holck,S, AU - Hall,P E, AU - Ratnam,S S, PY - 1992/9/1/pubmed PY - 1992/9/1/medline PY - 1992/9/1/entrez KW - Asia KW - Biology KW - Contraception KW - Contraceptive Agents KW - Contraceptive Agents, Estrogen KW - Contraceptive Agents, Female KW - Contraceptive Agents, Progestin KW - Contraceptive Methods KW - Developing Countries KW - Double-blind Studies KW - Ethinyl Estradiol KW - Family Planning KW - Iud KW - Levonorgestrel KW - Lipids KW - Metabolic Effects KW - Oral Contraceptives KW - Physiology KW - Research Methodology KW - Research Report KW - Singapore KW - Southeastern Asia KW - Studies SP - 227 EP - 41 JF - Contraception JO - Contraception VL - 46 IS - 3 N2 - A randomized double-blind study of the metabolic effects of 2 low-dose combined oral contraceptives was carried out in Singaporean women. The subjects comprised 58 women randomly allocated to two treatment groups (29 each): norethisterone 1 mg/ethinyl estradiol 35 micrograms (NET/EE) or levonorgestrel 150 micrograms/ethinyl estradiol 30 micrograms (LNG/EE) and a control group of 23 women using intra-uterine devices (IUD). Blood samples were taken on admission and at 3 and 12 months after pills or insertion of IUDs. Fasting glucose levels were decreased while 2h glucose and triglyceride were increased throughout the treatment period in NET/EE group [corrected]. LNG/EE group only showed significant increase of 2h glucose at 12 months and decrease of LDL cholesterol at 3 months while total cholesterol was significantly suppressed at 3 and 12 months [corrected]. The atherogenic index, LDL/HDL cholesterol was significantly reduced by 12 months. Both groups had no change in hemoglobin, hematocrit and total protein levels but alkaline phosphatase, bilirubin and aspartate transaminase (SGOT) were suppressed. While NET/EE suppressed albumin significantly, this was not observed with LNG/EE group. However, these differences observed with use of each pill preparations, were not so obvious between treatment groups and control. Changes in total, HDL and LDL cholesterol and SGOT were not significantly different than the IUD group. Furthermore, except for 2h glucose, there was no increase in the number of abnormal parameters after treatment. On the contrary, there was a reduction of abnormal values in most liver function parameters. Thus, except for glucose intolerance, the observed changes in metabolic parameters may not constitute any clinical significance.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0010-7824 UR - https://www.unboundmedicine.com/medline/citation/1451519/Lipid_and_biochemical_changes_after_low_dose_oral_contraception_ L2 - https://linkinghub.elsevier.com/retrieve/pii/0010-7824(92)90004-D DB - PRIME DP - Unbound Medicine ER -