Association between elevated plasma fibrinogen and the small, dense low-density lipoprotein phenotype among postmenopausal women

Am J Cardiol. 2000 Feb 15;85(4):451-6. doi: 10.1016/s0002-9149(99)00771-7.

Abstract

A predominance of small, dense low-density lipoprotein (LDL) particles (subclass pattern B) has been associated with a 2- to threefold increase in coronary heart disease risk. Recently, it has been reported that LDL subclass pattern B is associated with hyperfibrinogenemia, which is also a coronary heart disease risk factor. The present study examined the relation between hyperfibrinogenemia and LDL subclass pattern in 258 postmenopausal women. A significant univariate correlation was observed between the concentration of cholesterol carried in small, dense LDL particles and plasma fibrinogen concentration (r = 0.17, p = 0.01). The prevalence of LDL subclass pattern B was 41.9% in the highest fibrinogen tertile, compared with 27.9% and 24.4% in the first and second tertiles, respectively (global chi-square 6.8, p = 0.03). The crude odds ratio (OR) for LDL subclass pattern B among women in the highest fibrinogen tertile, compared with the lower tertiles, was 2.03 (95% confidence interval [CI] 1.18 to 3.51, p = 0.01). After adjustment for age and plasma lipids (log(e) triglycerides, LDL cholesterol, and high-density lipoprotein cholesterol), the OR was 2.14 (95% CI 1.17 to 3.96, p = 0.01). Further adjustment for hematocrit, indicators of carbohydrate homeostasis, body mass index, waist circumference, and several variables related to lifestyle did not attenuate this association (OR 2.56, 95% CI 1.27 to 5.27, p = 0.01). These data suggest that hyperfibrinogenemia and LDL subclass pattern B may be 2 components of a common syndrome and suggest that hyperfibrinogenemia may contribute to the increased coronary heart disease risk associated with LDL subclass pattern B.

Publication types

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

MeSH terms

  • Aged
  • Biomarkers / blood
  • Cholesterol, HDL / blood
  • Cholesterol, HDL / genetics
  • Cholesterol, LDL / blood*
  • Cholesterol, LDL / genetics
  • Coronary Disease / blood
  • Coronary Disease / etiology
  • Female
  • Fibrinogen / metabolism*
  • Hormone Replacement Therapy / adverse effects
  • Humans
  • Middle Aged
  • Phenotype
  • Postmenopause / blood*
  • Postmenopause / genetics
  • Prognosis
  • Risk Factors
  • Surveys and Questionnaires

Substances

  • Biomarkers
  • Cholesterol, HDL
  • Cholesterol, LDL
  • Fibrinogen