Fatty acid composition in the central and peripheral adipose tissues of the sable (Martes zibellina)
Fatty acid composition in the central and peripheral adipose tissues of the sable (Martes zibellina)
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DOI：
10.1016/j.jtherbio.2006.08.004
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发表时间：
2006-12
影响因子：
2.7
通讯作者：
A. Mustonen;P. Nieminen
中科院分区：
文献类型：
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作者：
A. Mustonen;P. Nieminen
研究了一种陆生鼬鼠腹部、皮下和周围（爪、尾、鼻）脂肪组织的总脂质的脂肪酸组成。该物种栖息在古北针叶林，在冬季暴露在极端寒冷中。虽然与躯干脂肪组织相比，貂的脚垫和鼻子具有更高的总多不饱和脂肪酸（PUFAs）比例，但脂肪的位置对物种中饱和脂肪酸和单不饱和脂肪酸的总百分比影响很小。在这方面，貂不同于它的亲戚，半水生的美洲貂鼬，它有明显的脂质向外围不饱和。正如之前在水貂中观察到的，貂在附属物中优先沉积n-3 PUFAs。黑貂的不饱和梯度较低，可能是由于它的陆地生活方式。本研究结果表明，在所有北方哺乳动物中，脂肪组织脂肪酸的平均不饱和度并不向外周增加。
Fatty acid composition was examined in the total lipids of the intraabdominal, subcutaneous and peripheral (paws, tail, nose) adipose tissues of a terrestrial mustelid, the sable Martes zibellina. The species inhabits the Palearctic taiga and is exposed to extreme cold during the winter. Although the paw pads and nose of the sable had higher proportions of total polyunsaturated fatty acids (PUFAs) compared to the adipose tissues of the trunk, the location of fat had only a little influence on the total percentages of saturated and monounsaturated fatty acids in the species. In this respect, the sable differs from its relative, the semiaquatic American mink Mustela vison, which has pronounced unsaturation of lipids towards the periphery. As observed previously in the mink, the sable deposits preferentially n-3 PUFAs in the appendages. The gradient of unsaturation is more modest in the sable possibly due to its terrestrial lifestyle. The results of the present study demonstrate that the average unsaturation of adipose tissue fatty acids does not increase towards the periphery in all northern mammals.