Points: Plasma cholesterol concentration and death from coronary heart disease

BMJ ◽  
1986 ◽  
Vol 293 (6546) ◽  
pp. 568-568
Author(s):  
R Marquis
1974 ◽  
Vol 12 (10) ◽  
pp. 37-39

The list of factors associated with a risk of increased atherosclerosis and its consequences is long and is lengthening. But most of the predictive power for ischaemic heart disease (IHD) resides in a small number which includes age, the plasma-cholesterol concentration, the blood pressure and cigarette smoking.1 2 Of these, age (though not necessarily ageing) is immutable; the other three factors offer more scope for intervention.


Author(s):  
Steef Kurstjens ◽  
Eugenie Gemen ◽  
Selina Walk ◽  
Tjin Njo ◽  
Johannes Krabbe ◽  
...  

Background Hypercholesterolemia (plasma cholesterol concentration ≥5.2 mmol/L) is a risk factor for cardiovascular disease and stroke. Many different cholesterol self-tests are readily available at general stores, pharmacies and web shops. However, there is limited information on their analytical and diagnostic performance. Methods We included 62 adult patients who required a lipid panel measurement (cholesterol, high-density lipoprotein (HDL), triglycerides and LDLcalc) for routine care. The performance of five different cholesterol self-tests, three quantitative meters ( Roche Accutrend Plus, Mission 3-in-1 and Qucare) and two semi-quantitative strip tests ( Veroval and Mylan MyTest), was assessed according to the manufacturers’ protocol. Results The average plasma cholesterol concentration was 5.2 ± 1.2 mmol/L. The mean absolute relative difference (MARD) of the five cholesterol self-tests ranged from 6 ± 5% ( Accutrend Plus) to 20 ± 12% ( Mylan Mytest). The Accutrend Plus cholesterol meter showed the best diagnostic performance with a 92% sensitivity and 89% specificity. The Qucare and Mission 3-in-1 are able to measure HDL concentrations and can thus provide a cholesterol:HDL ratio. The Passing-Bablok regression analyses for the ratio showed poor performance in both self-tests ( Mission 3-in-1: y = 1.62x–1.20; Qucare: y = 0.61x + 1.75). The Accutrend Plus is unable to measure the plasma high-density lipoprotein concentration. Conclusions/interpretation: The Accutrend Plus cholesterol meter (Roche) had excellent diagnostic and analytic performance. However, several of the commercially-available self-tests had considerably poor accuracy and diagnostic performance and therefore do not meet the required qualifications, potentially leading to erroneous results. Better regulation, standardization and harmonization of cholesterol self-tests is warranted.


1980 ◽  
Vol 2 (5) ◽  
pp. 131-138
Author(s):  
C. J. Glueck ◽  
M. J. Mellies ◽  
R. C. Tsang ◽  
J. A. Morrison

PEDIATRIC GENESIS OF ATHEROSCLEROSIS Atherosclerosis results from a variety of pathophysiologic disturbances, some currently recognized, and many undoubtedly not yet recognized, which in aggregate are identified as risk factors. Genetic and environmental influences conjointly affect the incidence and the severity of these risk factors and, thus, coronary heart disease (CHD) risk. Prophylaxis should be designed to prevent or retard the development of arterial plaques. This suggests that diagnostic and preventive efforts should begin in childhood. Eating habits are also probably established in childhood, allowing their early modification. The atherosclerotic plaque appears to have its genesis in childhood. The data from wartime autopsies confirm the presence of mature atherosclerotic lesions by the end of the second decade and emphasize the importance of primary atherosclerosis prevention beginning in the first and second decades. While there are clearly genetic factors in CHD, variation in rates in differing geographic areas appears less likely to be related to genetic than to environmental differences. Marked differences in plasma cholesterol levels are found in children in different geographic areas, generally paralleling pediatric cholesterol and saturated fat intake and the incidence of adult coronary heart disease. The relationships of elevated total plasma cholesterol levels to the incidence of coronary heart disease are clearly established in adults.


BMJ ◽  
1987 ◽  
Vol 294 (6568) ◽  
pp. 333-336 ◽  
Author(s):  
J Edington ◽  
M Geekie ◽  
R Carter ◽  
L Benfield ◽  
K Fisher ◽  
...  

1964 ◽  
Vol 10 (7) ◽  
pp. 619-626 ◽  
Author(s):  
Francisco Grande ◽  
Donald S Amatuzio ◽  
Shohachi Wada

Abstract The effect on the plasma cholesterol concentration of various anticoagulants added to the blood in dry form, as compared with that of serum, has been studied. The amounts of anticoagulants used, per 5 ml. of blood, were: heparin, 2.5 mg.; oxalate mixture, 12 mg.; tetrasodium EDTA, 5 mg.; sodium oxalate, 12mg.; and ACD mixture, 5.3 mg. citric acid, 15.8 mg. Na citrate, and 17.6 mg. dextrose. All these anticoagulants caused a decrease in the plasma cholesterol concentration. The mean cholesterol decrease (serum minus plasma) produced by heparin was only 4 mg./100 ml. (S.E., ± 1.24), but this difference was statistically significant. When the heparin was prepared by drying a solution of heparin in 0.9% NaCl a greater difference between serum and plasma was observed. The cholesterol difference (serum minus plasma) producd by Na oxalate increases with increasing amounts of anticoagulant. The decrease in plasma cholesterol concentration produced by the anticoagulants can be explained by changes of water distribution between cells and plasma, reflected by changes of hematocrit produced by the anticoagulant.


1996 ◽  
Vol 271 (5) ◽  
pp. H1755-H1761 ◽  
Author(s):  
N. R. Harris ◽  
D. N. Granger

Fluid filtration rate (Jv/S) from individual mesenteric capillaries in normocholesterolemic and hypercholesterolemic rats was measured before and after 30 min each of ischemia and reperfusion (I/R). The median I/R-induced increase in Jv/S (I/R vs. baseline) was 44% in normocholesterolemic rats (n = 11) and 97% in hypercholesterolemic rats (n = 11). A positive correlation slope of 0.20% per mg/dl resulted when the percent Jv/S increase vs. plasma cholesterol concentration (P = 0.02) was plotted, demonstrating that hypercholesterolemia enhances the capillary response to I/R. Because microvascular pressure did not change significantly after I/R in either group of rats, the increments in Jv/S likely reflect increased capillary permeability. In hypercholesterolemic rats rendered neutropenic with antineutrophil serum, I/R did not elicit a significant increase in Jv/S, suggesting that activated neutrophils mediate the exaggerated endothelial barrier dysfunction associated with hypercholesterolemia.


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