Sulfide catabolism ameliorates hypoxic brain injury.
Sulfide catabolism ameliorates hypoxic brain injury.
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硫化物分解代谢可以改善低氧脑损伤。
DOI:
10.1038/s41467-021-23363-x
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发表时间:
2021-05-25
影响因子:
16.6
通讯作者:
Ichinose F
中科院分区:
文献类型:
--
作者:
Marutani E;Morita M;Hirai S;Kai S;Grange RMH;Miyazaki Y;Nagashima F;Traeger L;Magliocca A;Ida T;Matsunaga T;Flicker DR;Corman B;Mori N;Yamazaki Y;Batten A;Li R;Tanaka T;Ikeda T;Nakagawa A;Atochin DN;Ihara H;Olenchock BA;Shen X;Nishida M;Hanaoka K;Kevil CG;Xian M;Bloch DB;Akaike T;Hindle AG;Motohashi H;Ichinose F
The mammalian brain is highly vulnerable to oxygen deprivation, yet the mechanism underlying the brain’s sensitivity to hypoxia is incompletely understood. Hypoxia induces accumulation of hydrogen sulfide, a gas that inhibits mitochondrial respiration. Here, we show that, in mice, rats, and naturally hypoxia-tolerant ground squirrels, the sensitivity of the brain to hypoxia is inversely related to the levels of sulfide:quinone oxidoreductase (SQOR) and the capacity to catabolize sulfide. Silencing SQOR increased the sensitivity of the brain to hypoxia, whereas neuron-specific SQOR expression prevented hypoxia-induced sulfide accumulation, bioenergetic failure, and ischemic brain injury. Excluding SQOR from mitochondria increased sensitivity to hypoxia not only in the brain but also in heart and liver. Pharmacological scavenging of sulfide maintained mitochondrial respiration in hypoxic neurons and made mice resistant to hypoxia. These results illuminate the critical role of sulfide catabolism in energy homeostasis during hypoxia and identify a therapeutic target for ischemic brain injury. The brain is sensitive to oxygen deprivation. Here, the authors show in experimental animals that sensitivity to hypoxia is inversely related to the level of sulfide:quinone oxidoreductast (SQOR) and the capacity to catabolize sulfide in the brain.
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影响因子:
37.8
作者:
Calvert JW;Elston M;Nicholson CK;Gundewar S;Jha S;Elrod JW;Ramachandran A;Lefer DJ
通讯作者:
Lefer DJ
影响因子:
4.7
作者:
Demarest TG;Schuh RA;Waddell J;McKenna MC;Fiskum G
通讯作者:
Fiskum G
影响因子:
3.1
作者:
Gheibi, Sevda;Aboutaleb, Nahid;Gheibi, Azam
通讯作者:
Gheibi, Azam
影响因子:
8.3
作者:
Alkayed, NJ;Murphy, SJ;Hurn, PD
通讯作者:
Hurn, PD
影响因子:
56.9
作者:
Blackstone, E;Morrison, M;Roth, MB
通讯作者:
Roth, MB