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DIETARY PECTIN INFLUENCES FIBRIN NETWORK STRUCTURE IN HYPERCHOLESTEROLAEMIC SUBJECTS

Fibrinogen is an important risk factor for atherosclerosis, stroke and cardiovascular heart disease (CHD). This risk is increased when associated with a high serum cholesterol. Furthermore, it is also believed that not only fibrinogen concentration, but also the quality of fibrin networks may be an...

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Published in:Thrombosis research 1997-05, Vol.86 (3), p.183-196
Main Authors: Veldman, Frederick J, Nair, Chenicheri H, Vorster, Hester H, Vermaak, Willem J.H, Jerling, Johann C, Oosthuizen, Welma, Venter, Christine S
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cited_by cdi_FETCH-LOGICAL-c389t-44dde38f88b82b2f503eae2cc94b6dc09ebe2fafc8ba24c7bc4bf969f1dabfad3
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description Fibrinogen is an important risk factor for atherosclerosis, stroke and cardiovascular heart disease (CHD). This risk is increased when associated with a high serum cholesterol. Furthermore, it is also believed that not only fibrinogen concentration, but also the quality of fibrin networks may be an important risk factor for the development of CHD. CHD and stroke as a result of atherosclerosis, plus the related problems of hyperinsulinaemia, hyperlipidaemia and hypertension are strongly related to diet. The “western” diet, defined by low fibre and high fat, sucrose and animal protein intakes, appears to be a major factor leading to death. It has been established that the water-soluble dietary fibre, pectin, significantly decrease the concentration of serum cholesterol levels. Evidence is also accumulating that a diet rich in fibre may protect against diseases associated with raised clotting factors. This investigation studied the possible effects of pectin on fibrinogen levels and fibrin network architecture. Two groups of 10 male hyperlipidaemic volunteers each, received a pectin supplement (15g/day) or placebo (15g/day) for 4 weeks. Lipid and fibrin network structure variables were measured at baseline and the end of supplementation. Pectin supplementation caused significant decreases in total cholesterol, low-density lipoprotein cholesterol, apolipoprotein A & B and lipoprotein (a). Significant changes in the characteristics of fibrin networks developed in the plasma of the pectin supplemented group indicated that networks were more permeable and had lower tensile strength. These network structures are believed to be less atherogenic. It is suspected that pectin modified network characteristics by a combination of its effects on metabolism and altered fibrin conversion. This confirms the therapeutic possibilities of dietary intervention. Furthermore, this study also showed that changes in plasma fibrinogen need not be present to induce alterations in fibrin network architecture. © 1997 Elsevier Science Ltd
doi_str_mv 10.1016/S0049-3848(97)00062-5
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subjects Adult
Biological and medical sciences
Cholesterol - blood
Coronary Disease - etiology
Coronary Disease - prevention & control
Dietary Fiber - administration & dosage
Dietary Fibre
Disorders of blood lipids. Hyperlipoproteinemia
Double-Blind Method
Fibrin - chemistry
Fibrin - metabolism
Fibrin Network Structure
Fibrinogen
Fibrinogen - metabolism
Hemostasis
Humans
Hypercholesterolaemia
Hypercholesterolemia - blood
Hypercholesterolemia - complications
Hypercholesterolemia - diet therapy
Lipids - blood
Male
Medical sciences
Metabolic diseases
Middle Aged
Molecular Structure
Pectin
Pectins - administration & dosage
Risk Factors
title DIETARY PECTIN INFLUENCES FIBRIN NETWORK STRUCTURE IN HYPERCHOLESTEROLAEMIC SUBJECTS
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