T. N. Ilyina, I. V. Baishnikova, A. E. Yakimova, I. A. Zaitseva
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引用次数: 0
摘要
摘要 我们研究了栖息在银行田鼠（Myodes (Clethrionomys) glareolus）自然栖息地北部周边地区的银行田鼠和普通鼩鼱（Sorex araneus）组织中维生素 A（视黄醇）和维生素 E（α-生育酚）的浓度。维生素 A 在鼩鼱和田鼠组织中的分布情况相似：肝脏中的浓度最高，心脏中的浓度最低。在这两种动物的肾脏和骨骼肌中发现的视黄醇浓度与年龄有关。与成年越冬动物相比，幼年鼩鼱越冬前所有器官中的维生素 E 含量都明显较低，而银行田鼠则没有发现这种与年龄有关的差异。越冬动物肝脏中维生素 A 和 E 的含量也存在种间差异。研究结果表明，银行田鼠和鼩鼱组织中维生素 A 和 E 的浓度取决于新陈代谢过程和物种的生态特征。鼩鼱体内的维生素含量主要取决于年龄。
On the Concentration of Vitamins A and E in the Tissues of the Bank Vole (Myodes (Clethrionomys) glareolus) and Common Shrew (Sorex araneus) Inhabiting Karelia
We have studied the concentration of vitamins A (retinol) and E (α-tocopherol) in the tissues of the bank vole (Myodes (Clethrionomys) glareolus) and common shrew (Sorex araneus) inhabiting the northern periphery of its natural habitat. The distribution of vitamin A in the common shrew and bank vole tissues is similar: the highest concentration is found in the liver, and the lowest level is found in the heart. Age-related differences in the retinol concentration are detected in the kidneys of the two species, as well as in the skeletal muscle of the shrew. A significantly lower vitamin E concentration is found in all organs of young shrews before wintering, compared to adult overwintered animals, while in the bank vole no such age-related differences are found. Interspecies differences in the levels of vitamins A and E in the liver of overwintered animals are revealed. The results obtained show that the concentration of vitamins A and E in the tissues of the bank vole and the common shrew is determined by metabolic processes and the ecological characteristics of the species. The level of vitamins in the common shrew depends largely on age.
期刊介绍：
Advances in Gerontology focuses on biomedical aspects of aging. The journal also publishes original articles and reviews on progress in the following research areas: demography of aging; molecular and physiological mechanisms of aging, clinical gerontology and geriatrics, prevention of premature aging, medicosocial aspects of gerontology, and behavior and psychology of the elderly.
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