Lin D S, Connor W E, Spenler C W
Department of Medicine, Oregon Health Sciences University, Portland 97201.
Am J Clin Nutr. 1993 Aug;58(2):174-9. doi: 10.1093/ajcn/58.2.174.
The objective of this study was to determine the effect that different dietary fatty acids would have on the fatty acid composition of adipose tissue. Thirty adult rabbits were starved 3-4 wk to deplete adipose tissue stores. They were then refed five different fats (linseed, rapeseed, cocoa butter, palm, and safflower oils) to regain initial body weights. The fatty acids of the adipose tissue, in general, reflected the diet. Positive correlations between the amount of the five commonly consumed fatty acids (palmitic, stearic, oleic, linoleic, and linolenic acids) in the diet and their deposition into the adipose tissue were observed. All polyunsaturated and monounsaturated fatty acids were well incorporated into the adipose tissue, even linolenic acid. The deposition of dietary saturated fatty acids (ie stearic acid) was limited. Our data showed that the fatty acids of dietary fats may greatly affect adipose fatty acid composition. Thus, adipose stores of essential fatty acids can be greatly augmented by diet.
本研究的目的是确定不同膳食脂肪酸对脂肪组织脂肪酸组成的影响。30只成年兔子饥饿3 - 4周以耗尽脂肪组织储备。然后给它们重新喂食五种不同的脂肪（亚麻籽、油菜籽、可可脂、棕榈油和红花油）以恢复初始体重。一般来说，脂肪组织的脂肪酸反映了饮食情况。观察到饮食中五种常见食用脂肪酸（棕榈酸、硬脂酸、油酸、亚油酸和亚麻酸）的量与其在脂肪组织中的沉积之间存在正相关。所有多不饱和脂肪酸和单不饱和脂肪酸都能很好地融入脂肪组织，甚至亚麻酸也是如此。膳食饱和脂肪酸（即硬脂酸）的沉积是有限的。我们的数据表明，膳食脂肪的脂肪酸可能会极大地影响脂肪组织的脂肪酸组成。因此，必需脂肪酸的脂肪储备可以通过饮食大大增加。
