No evidence that carotenoid pigments boost either immune or antioxidant defenses in a songbird.
No evidence that carotenoid pigments boost either immune or antioxidant defenses in a songbird.
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DOI:
10.1038/s41467-018-02974-x
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发表时间:
2018-02-05
影响因子:
16.6
通讯作者:
Hill GE
中科院分区:
文献类型:
--
作者:
Koch RE;Kavazis AN;Hasselquist D;Hood WR;Zhang Y;Toomey MB;Hill GE
Dietary carotenoids have been proposed to boost immune system and antioxidant functions in vertebrate animals, but studies aimed at testing these physiological functions of carotenoids have often failed to find support. Here we subject yellow canaries (Serinus canaria), which possess high levels of carotenoids in their tissue, and white recessive canaries, which possess a knockdown mutation that results in very low levels of tissue carotenoids, to oxidative and pathogen challenges. Across diverse measures of physiological performance, we detect no differences between carotenoid-rich yellow and carotenoid-deficient white canaries. These results add further challenge to the assumption that carotenoids are directly involved in supporting physiological function in vertebrate animals. While some dietary carotenoids provide indirect benefits as retinoid precursors, our observations suggest that carotenoids themselves may play little to no direct role in key physiological processes in birds. Dietary carotenoids have been proposed to have physiological benefits in addition to contributing to coloration. Here, Koch et al. compare immune and antioxidant functions in yellow, carotenoid-rich vs. white, carotenoid-deficient canaries and find no difference, suggesting a limited physiological role of carotenoids.
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影响因子:
3.7
作者:
Laaksonen T;Negro JJ;Lyytinen S;Valkama J;Ots I;Korpimäki E
通讯作者:
Korpimäki E
影响因子:
2.4
作者:
French SS;Neuman-Lee LA
通讯作者:
Neuman-Lee LA
影响因子:
4.4
作者:
Harmon, BG
通讯作者:
Harmon, BG
影响因子:
2.8
作者:
Bertrand, Sophie;Faivre, Bruno;Sorci, Gabriele
通讯作者:
Sorci, Gabriele
DOI:
10.1515/bchm2.1934.224.5-6.193
发表时间:
1934-01-01
期刊:
HOPPE SEYLER S ZEITSCHR PHYSIOL CHEM
影响因子:
--
作者:
BROCKMANN, HANS;VOLKER, OTTO
通讯作者:
VOLKER, OTTO