Prevention of Retinal Degeneration in a Rat Model of Smith-Lemli-Opitz Syndrome.
Prevention of Retinal Degeneration in a Rat Model of Smith-Lemli-Opitz Syndrome.
复制标题
预防史密斯 - 莱姆利 - 奥普茨综合征大鼠模型中的视网膜变性。
DOI:
10.1038/s41598-018-19592-8
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发表时间:
2018-01-19
影响因子:
4.6
通讯作者:
Xu L
中科院分区:
文献类型:
--
作者:
Fliesler SJ;Peachey NS;Herron J;Hines KM;Weinstock NI;Ramachandra Rao S;Xu L
Smith-Lemli-Opitz Syndrome (SLOS) is a recessive human disease caused by defective cholesterol (CHOL) synthesis at the level of DHCR7 (7-dehydrocholesterol reductase), which normally catalyzes the conversion of 7-dehydrocholesterol (7DHC) to CHOL. Formation and abnormal accumulation of 7DHC and 7DHC-derived oxysterols occur in SLOS patients and in rats treated with the DHCR7 inhibitor AY9944. The rat SLOS model exhibits progressive and irreversible retinal dysfunction and degeneration, which is only partially ameliorated by dietary CHOL supplementation. We hypothesized that 7DHC-derived oxysterols are causally involved in this retinal degeneration, and that blocking or reducing their formation should minimize the phenotype. Here, using the SLOS rat model, we demonstrate that combined dietary supplementation with CHOL plus antioxidants (vitamins E and C, plus sodium selenite) provides better outcomes than dietary CHOL supplementation alone with regard to preservation of retinal structure and function and lowering 7DHC-derived oxysterol formation. These proof-of-principle findings provide a translational, pre-clinical framework for designing clinical trials using CHOL-antioxidant combination therapy as an improved therapeutic intervention over the current standard of care for the treatment of SLOS.
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影响因子:
3.6
作者:
Chan YM;Merkens LS;Connor WE;Roullet JB;Penfield JA;Jordan JM;Steiner RD;Jones PJ
通讯作者:
Jones PJ
影响因子:
1.8
作者:
BROWN, KT
通讯作者:
BROWN, KT
影响因子:
--
作者:
Elias, ER;Hansen, RM;Fulton, AB
通讯作者:
Fulton, AB
DOI:
10.1016/b978-0-12-401717-7.00029-0
发表时间:
2014-01-01
期刊:
HANDBOOK OF NUTRITION, DIET, AND THE EYE
影响因子:
--
作者:
Fliesler, Steven J.
通讯作者:
Fliesler, Steven J.
影响因子:
4.2
作者:
Haas, D.;Garbade, S. F.;Burgard, P.
通讯作者:
Burgard, P.