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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Lycopene ameliorates oxidative stress in the aging chicken ovary via activation of Nrf2/HO-1 pathway.

Abstract Source:

Aging (Albany NY). 2018 Aug 16. Epub 2018 Aug 16. PMID: 30115814

Abstract Author(s):

Xingting Liu, Xin Lin, Siyu Zhang, Changquan Guo, Jian Li, Yuling Mi, Caiqiao Zhang

Article Affiliation:

Xingting Liu

Abstract:

After 480 days of age, high-producing hens are likely to be subject to ovarian aging, mainly due to oxidative stress. In this study, the amelioration of ovarian aging in chickens, using a plant antioxidant, lycopene, was investigated. The activity of the Nrf2/HO-1 pathway in chicken ovaries at different ages (90, 150, 280 and 580 days old) were compared to elucidate any age-related changes. Subsequently, the putative attenuating effect of lycopene (100 ng/mL) on ovarian aging was evaluated through the establishment of a D-gal-induced aging ovarian culture model. The cultured ovarian tissues of young (280 days) and old (580 days) hens were treated with lycopene for 72 h to verify protective effects of lycopene on naturally aged ovaries. Results showed that the Nrf2/HO-1 pathway was down-regulated during the ovarian aging process. Lycopene rescued the decreased antioxidant capacity by increasing the activities of antioxidases and activating the Nrf2/HO-1 pathway in both D-gal-induced and naturally aged ovaries. Moreover, lycopene promoted cell proliferation and inhibited apoptosis in both D-gal-induced and naturally aged ovaries. Lycopene also alleviated D-gal-induced mitochondrial damage in the living granulosa cells. In conclusion, lycopene can effectively ameliorate the oxidative stress in aging hen ovaries via the activation of the Nrf2/HO-1 pathway.

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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