Martínez-Conde A, Mayor P, Jarillo P
Rev Esp Fisiol. 1986 Sep;42(3):365-70.
To investigate possible differences in triacylglyceride accumulation in adipose tissue, six different species have been studied (hamster, mouse, rat, rabbit, dog and pig). They were fed the same diet of high proportion of saturated fatty acids during 3 months after the lactation period. There are significant differences between the fatty acids in the diet and the studied tissue, a higher proportion of myristic, palmitoleic and linoleic acids together with a minor proportion of palmitic and stearic acids being accumulated in all studied species except in pig. The differences among species were significant in most cases being maximal in pig (57.7% of saturated fatty acids) and hamster (24.4% of saturated fatty acids). There is a direct relationship between the position of each fatty acid in the triacylglyceride and its proportion in the tissue, this proportion being maximal when the fatty acid is placed on position 2 in the triacylglycerides. There is also a relationship between the different position in the phylogenetic scale of each studied species and the differential fatty acid composition. All these data suggest that there are specific mechanisms involved in the fatty acids accumulation on the adipose tissue. The position of the different fatty acids in the triacylglyceride studied could be a part of this mechanism.
为了研究脂肪组织中三酰甘油积累的可能差异，已对六种不同物种（仓鼠、小鼠、大鼠、兔子、狗和猪）进行了研究。在哺乳期后的3个月内，它们被喂食相同比例的高饱和脂肪酸饮食。饮食中的脂肪酸与所研究的组织之间存在显著差异，除猪外，所有研究物种中肉豆蔻酸、棕榈油酸和亚油酸的比例较高，而棕榈酸和硬脂酸的比例较低。在大多数情况下，物种间的差异很显著，在猪（57.7%的饱和脂肪酸）和仓鼠（24.4%的饱和脂肪酸）中差异最大。三酰甘油中每种脂肪酸的位置与其在组织中的比例之间存在直接关系，当脂肪酸位于三酰甘油的2位时，该比例最大。每个研究物种在系统发育尺度上的不同位置与不同的脂肪酸组成之间也存在关系。所有这些数据表明，脂肪组织中脂肪酸积累涉及特定机制。所研究的三酰甘油中不同脂肪酸的位置可能是该机制的一部分。
