Enzyme activity, hormone concentration in tree shrew (Tupaia belangeri) during cold acclimation

Enzyme activity, hormone concentration in tree shrew (Tupaia belangeri) during cold acclimation

Автор: Zhang Lin, Zhu Wanlong, Wang Zhengkun

Журнал: Журнал стресс-физиологии и биохимии @jspb

Статья в выпуске: 3 т.8, 2012 года.

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Environmental factors play an important role in the seasonal adaptation of body mass and thermogenesis in wild small mammals. The tree shrew (Tupaia belangeri), is a unique species of small mammals which is origin of island in the Oriental realm. The present study was to test the hypothesis that ambient temperature was a cue to induce adjustments in body mass, energy intake, metabolism, uncoupling protein 1 (UCP1) in brown adipose tissue (BAT), and other biochemical characters of T. belangeri during cold exposure about 21 days. Our data demonstrate that cold acclimation induced a remarkable increase in body mass, a significant increase in energy intake and metabolic rate, and high expression of UCP1 in BAT of T. belangeri. Cold acclimation induced an increase in cytochrome c oxidase (COX) and Thyroidhormones (T3/T4). These data supported that T. belangeri increased the body mass and increased energy intake and expenditure under cold acclimation. Increased expression of UCP1 was potentially involved in the regulation of energy metabolism and thermogenic capacity following cold acclimation. And it through changes in enzyme activity and hormone concentration under cold acclimation, and suggested temperature changes play an important role in the regulation of thermogenic capacity in tree shrew.

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Brown adipose tissue (bat), cold adaptation, cytochrome c oxidase (cox), energy metabolism, thyroidhormones, tupaia belangeri, uncoupling protein 1(ucp1)

Короткий адрес: https://sciup.org/14323673

IDR: 14323673

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