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Clin Endocrinol (Oxf). 2016 Feb;84(2):229-235. doi: 10.1111/cen.12937. Epub 2015 Oct 05.

Lipoprotein(a) and apolipoprotein(a) in polycystic ovary syndrome.

Clinical endocrinology

Byambaa Enkhmaa, Erdembileg Anuurad, Wei Zhang, Adnan Abbuthalha, Parneet Kaur, Jasmeen Visla, Sidika Karakas, Lars Berglund

Affiliations

  1. Department of Internal Medicine, School of Medicine, University of California, Davis, CA, USA.
  2. The Department of Veterans Affairs, Northern California Health Care System, Sacramento, CA, USA.

PMID: 26341109 PMCID: PMC4779071 DOI: 10.1111/cen.12937

Abstract

OBJECTIVE: Levels of lipoprotein(a), Lp(a), an independent risk factor for cardiovascular disease (CVD), are affected by sex hormones. Women with polycystic ovary syndrome (PCOS) have elevated androgen levels and are at increased CVD risk. We investigated the impact of PCOS-related hormonal imbalance on Lp(a) levels in relation to apo(a) gene size polymorphism, a major regulator of Lp(a) level.

DESIGN: Cross-sectional.

PATIENTS: Forty-one Caucasian women with PCOS based on the NIH criteria.

MEASUREMENTS: (1) Apo(a) gene size polymorphism measured as Kringle (K) 4 repeat number; (2) total plasma Lp(a) level; (3) allele-specific apo(a) level assessing the amount of Lp(a) carried by an individual apo(a) allele/isoform; and (4) sex hormone levels.

RESULTS: The mean age was 32 ± 6 years, and the mean BMI was 35 ± 8 with 66% of women classified as obese (BMI >30 kg/m

CONCLUSIONS: The apo(a) genetic variability remains the major regulator of plasma Lp(a) levels in women with PCOS.

© 2015 John Wiley & Sons Ltd.

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