Effects of dietary cholesterol and fatty acids on plasma lipoproteins.
Effects of dietary cholesterol and fatty acids on plasma lipoproteins.
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膳食胆固醇和脂肪酸对血浆脂蛋白的影响。
DOI:
10.1172/jci110542
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发表时间:
1982
期刊:
影响因子:
--
通讯作者:
Olson,RE
中科院分区:
文献类型:
--
作者:
Schonfeld,G;Patsch,W;Rudel,LL;Nelson,C;Epstein,M;Olson,RE
The effects of dietary cholesterol and fatty acids on low density and high density lipoproteins (LDL and HDL) were studied in 20 young men. After 2-3 wk of evaluations on ad lib. diets, basal diets, which consisted of 15% protein, 45% carbohydrates, 40% fat, and 300 mg/day of cholesterol, were given for 4-5 wk (Basal). The ratio of dietary polyunsaturated to saturated fatty acids (P/S) for different groups of subjects were 0.25, 0.4, 0.8, or 2.5. 750 and 1,500 mg/d of cholesterol were added to the basal diets as 3 and 6 eggs, respectively. Total cholesterol and LDL cholesterol were lower in all subjects on the basal diets than on the ad lib. diets. Addition of 750 mg cholesterol to the diet with P/S = 0.25-0.4 raised LDL cholesterol by 16 +/- 14 mg/dl to 115% of basal diet values (n = 11, P less than 0.01); 1,500 mg increased LDL cholesterol by 25 +/- 19 mg/dl to 125% (n = 9, P less than 0.01). On the diet with P/S = 0.8, 750 mg produced insignificant increases in LDL cholesterol, but 1,500 mg produced increases of 17 +/- 22 mg/dl to 115% of basal (n = 6, P less than 0.02). On the P/S = 2.5 diet, neither 750 nor 1,500 mg produced significant changes. Thus, both the cholesterol contents and P/S ratios of diets were important in determining LDL levels. The lipid and apoprotein compositions, flotation rates, molecular weights, and binding by cellular receptors of LDL were virtually unchanged by the addition of cholesterol to the diets high in saturated fat. These diets, therefore, caused an increase in the number of LDL particles of virtually unchanged physical and biological properties. On the diet with low P/S ratio, HDL2 rose, whereas this effect was absent on diets with high P/S ratios. The response of LDL to dietary manipulations is consonant with epidemiologic data relating diets high in cholesterol and saturated fat to atherogenesis. The response of HDL2, however, is opposite to that of its putative role as a negative risk factor. Further work is needed to clarify this interesting paradox.
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DOI:
--
发表时间:
1985
期刊:
Addictive Behaviours
影响因子:
--
作者:
A. Biglan;C. Gallison;D. Ary;R. Thompson
通讯作者:
R. Thompson
影响因子:
12.7
作者:
R. Jessor;J. Chase;J. Donovan
通讯作者:
J. Donovan
DOI:
--
发表时间:
1986
期刊:
International Journal of the Addictions
影响因子:
--
作者:
M. Singer;T. Anglin
通讯作者:
T. Anglin
影响因子:
64.5
作者:
L. Johnston;P. O'Malley;J. Bachman
通讯作者:
J. Bachman
DOI:
10.3109/10826088609074839
发表时间:
1986
期刊:
The International journal of the addictions
影响因子:
--
作者:
White,HR;Johnson,V;Horwitz,A
通讯作者:
Horwitz,A