Association between rheology and components of lipoproteins in human blood. Results from the MONICA project.
نویسندگان
چکیده
BACKGROUND Recent studies have suggested that several hemostatic factors, leukocyte count, and plasma viscosity are predictive of coronary heart disease. Detailed analyses on lifestyle correlates, in particular plasma lipids and lipoproteins, of determinants of blood rheology have not been reported from epidemiological studies. METHODS AND RESULTS We studied the relation between determinants of blood rheology and components of lipoproteins in a large sample of a population aged 25-64 years. The rheological parameters investigated were plasma viscosity, hemoglobin, and total serum protein; the lipoprotein variables included total cholesterol, high density lipoprotein (HDL) cholesterol, and the apoproteins A-I, A-II, and B. Covariables considered for possible confounding effects were age, body mass index, smoking behavior, alcohol consumption, and hypertension. Plasma viscosity was found to have a positive linear association with total cholesterol and apoprotein B (partial correlations after adjustment for all covariables including total serum protein for men and women were r = 0.23/0.19 and 0.24/0.25, respectively) and a small negative linear association with HDL cholesterol (r = -0.14/-0.10) and with apoprotein A-I (r = -0.08/-0.06). Polynomial regression showed a strong quadratic relation with HDL cholesterol in men, whereas no other variable revealed an appreciable deviation from linearity. The covariables had only a small, if any, confounding effect. Total serum protein, after control for the covariables, appeared to be associated only with total cholesterol. No association was found with hemoglobin. CONCLUSIONS We conclude that rheological mechanisms may be involved in the pathogenesis of ischemic syndromes in hyperlipidemias. However, the finding that in particular men with very low HDL cholesterol exhibit increased plasma viscosity cannot be explained in pure rheological terms but may be, at least in part, the result of concomitant hypertriglyceridemia. This was not assessed in this study.
منابع مشابه
Statistical analysis of the association between rheological properties of blood and atherosclerosis
The aim of this study is to investigate the effects of non-Newtonian blood rheology models on the wall shear stress (WSS) distribution in a cohort of patients-specific coronary arteries. Twenty patients with diseased left anterior descending (LAD) coronary arteries (with varying degrees of stenosis severity from mild to severe) who underwent angiography and in-vivo pressure measurements were se...
متن کاملبررسی شیوع سندرم متابولیک
Introduction: Metabolic syndrome includes obesity, hypertriglyceridemia, glucose intolerance, hypertension and lipid profile abnormalities. The risk of cardiovascular diseases with this syndrome is higher than every components alone. In view of its burden and high mortality rate, this syndrome should be noted. Methods: The 25-64 aged individuals in 17th zone of Tehran were studied. It was des...
متن کاملبررسی ارتباط پلیمورفیسم Taq 1B در ژن کلستریل استرترانسفر پروتئین با پارامترهای سندرم متابولیک
Background & aims: Metabolic Syndrome (MetS) is a potential threatening factor for cardiovascular disorders and atherosclerosis which is accompanied by increase in plasma triglyceride, cholesterol, low density lipoproteins (LDL-c), fasting blood sugar (FBS) and low high density lipoproteins (HDL-c). Cholesteryl ester transfer protein (CETP) catalysis transfer of lipids and phospholipids betw...
متن کاملEvaluation of plasma lipids and lipoproteins in patients with psoriasis
Psoriasis is an epidermal disease characterized by chronic relapsing papillon squamous erythematous plaques which may develop in the skin of elbows, knees and extensor surfaces. The cause of psoriasis is unknown. The primary etiologic factor may be related to excessive uncontrolled synthesis is resulting from changes in (1) the function of growth factors ( EGF),(2) presence of proto- oncogenes,...
متن کاملAssociation between Metabolic Syndrome Criteria and Body-composition Components in Children with Type 1 Diabetes Mellitus
Background Metabolic syndrome (MES) consists of central obesity, hypertension, reduced high density lipoprotein (HDL), elevated serum triglycerides and high Fasting blood sugar (FBS). They are susceptible to cardio-vascular disease, and insulin resistance. The goal of present research was to assess any relation between the composition of the body in Type 1 Diabetes Mellitus (T1DM) children and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Circulation
دوره 85 6 شماره
صفحات -
تاریخ انتشار 1992