Increased platelet aggregation and decreased high-density lipoprotein cholesterol in women on oral contraceptives. 1979

M L Bierenbaum, and A I Fleischman, and A Stier, and P Watson, and H Somol, and A M Naso, and M Binder

In vivo platelet function, serum total cholesterol (TC), high-density lipoprotein cholesterol (HDL), and serum triglycerides (TG) were determined in 26 women starting oral contraceptives (OCA). Studies were run prior to, and after one and two months of therapy. Platelet aggregation time decreased by 50 percent or more in eight of the 26 women from a pre-experimental mean value of 387 +/- 136 seconds. TC did not vary but after the women were on medication for two months, HDL decreased from 56 +/- 14.4 mg/dl to 52 +/- 12.3 mg/dl (p less than 0.05). There was a progressive increase in TG under treatment, 74 +/- 23.3 mg/dl on the pre-experimental measurement to 93 +/- 31.0 mg/dl after two months of therapy (p less than 0.005). Women planning to use OCA might best be advised to have aggregation and serum lipid studies done before and early in usage.

UI MeSH Term Description Entries
D008075 Lipoproteins, HDL A class of lipoproteins of small size (4-13 nm) and dense (greater than 1.063 g/ml) particles. HDL lipoproteins, synthesized in the liver without a lipid core, accumulate cholesterol esters from peripheral tissues and transport them to the liver for re-utilization or elimination from the body (the reverse cholesterol transport). Their major protein component is APOLIPOPROTEIN A-I. HDL also shuttle APOLIPOPROTEINS C and APOLIPOPROTEINS E to and from triglyceride-rich lipoproteins during their catabolism. HDL plasma level has been inversely correlated with the risk of cardiovascular diseases. High Density Lipoprotein,High-Density Lipoprotein,High-Density Lipoproteins,alpha-Lipoprotein,alpha-Lipoproteins,Heavy Lipoproteins,alpha-1 Lipoprotein,Density Lipoprotein, High,HDL Lipoproteins,High Density Lipoproteins,Lipoprotein, High Density,Lipoprotein, High-Density,Lipoproteins, Heavy,Lipoproteins, High-Density,alpha Lipoprotein,alpha Lipoproteins
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D010974 Platelet Aggregation The attachment of PLATELETS to one another. This clumping together can be induced by a number of agents (e.g., THROMBIN; COLLAGEN) and is part of the mechanism leading to the formation of a THROMBUS. Aggregation, Platelet
D002784 Cholesterol The principal sterol of all higher animals, distributed in body tissues, especially the brain and spinal cord, and in animal fats and oils. Epicholesterol
D003276 Contraceptives, Oral Compounds, usually hormonal, taken orally in order to block ovulation and prevent the occurrence of pregnancy. The hormones are generally estrogen or progesterone or both. Low-Dose Oral Contraceptive,Oral Contraceptive,Oral Contraceptives,Oral Contraceptives, Low-Dose,Oral Contraceptives, Phasic,Contraceptive, Low-Dose Oral,Contraceptive, Oral,Contraceptives, Low-Dose Oral,Contraceptives, Phasic Oral,Low Dose Oral Contraceptive,Low-Dose Oral Contraceptives,Oral Contraceptive, Low-Dose,Oral Contraceptives, Low Dose,Phasic Oral Contraceptives
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014280 Triglycerides An ester formed from GLYCEROL and three fatty acid groups. Triacylglycerol,Triacylglycerols,Triglyceride

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