一些家养和野生反刍动物肾上腺脂质的组成

Composition of adrenal lipids from some domestic and wild ruminants.

Cmelik S H, Ley H

Department of Biochemistry, University of Rhodesa Salisbury.

Comp Biochem Physiol B. 1977;56(3):267-70. doi: 10.1016/0305-0491(77)90013-x.

Abstract

Lipids from the whole adrenal glands of the ox and the African buffalo (Syncerus caffer) were extracted and fractionated into neutral and phospholipids. Both species revealed the presence of considerable quantities of cholesterol but only very small quantities of cholesteryl esters. 2. Fatty acids from various fractions of bovine and buffalo adrenal glands were investigated by gas-chromatography. They showed a remarkably low content of higher unsaturated fatty acids and a very high content of stearic acid. 3. Mitochondrial and microsomal fractions were isolated from the adrenal glands of the impala antelope (Aepyceros melampus), their lipids extracted, analyzed and compared with the composition of the mitochondrial lipids from bovine adrenal glands. 4. Subcellular fractions of the bovine and impala adrenal glands contain only very small quantities of esterified cholesterol. Most of the lipid fractions were characterized by the absence of adrenic acid (C22:4 omega 6) and a low content of arachidonic acid.

摘要

提取了牛和非洲水牛（非洲草原水牛）整个肾上腺中的脂质，并将其分离为中性脂质和磷脂。两种动物的肾上腺中都含有大量胆固醇，但胆固醇酯的含量极少。2. 采用气相色谱法研究了牛和水牛肾上腺不同组分中的脂肪酸。结果显示，高级不饱和脂肪酸含量极低，而硬脂酸含量极高。3. 从黑斑羚（高角羚）的肾上腺中分离出线粒体和微粒体组分，提取并分析了其脂质，然后与牛肾上腺线粒体脂质的组成进行比较。4. 牛和黑斑羚肾上腺的亚细胞组分中仅含有极少量的酯化胆固醇。大多数脂质组分的特征是不含肾上腺酸（C22:4 ω6）且花生四烯酸含量低。