Analysis by liquid chromatography-mass spectrometry of sterols and oxysterols in brain of the newborn Dhcr7(Δ3-5/T93M) mouse: a model of Smith-Lemli-Opitz syndrome.
Analysis by liquid chromatography-mass spectrometry of sterols and oxysterols in brain of the newborn Dhcr7(Δ3-5/T93M) mouse: a model of Smith-Lemli-Opitz syndrome.
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DOI:
10.1016/j.bcp.2013.03.003
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发表时间:
2013-07-01
影响因子:
5.8
通讯作者:
Griffiths, William J.
中科院分区:
文献类型:
--
作者:
Meljon, Anna;Watson, Gordon L.;Wang, Yuqin;Shackleton, Cedric H. L.;Griffiths, William J.
关键词:
In this study the sterol and oxysterol profile of newborn brain from the Dhcr7Δ3-5/T93M mouse model of Smith–Lemli–Opitz syndrome (SLOS) has been investigated. This is a viable mouse model which is compound heterozygous containing one null allele and one T93M mutation on Dhcr7. We find the SLOS mouse has reduced levels of cholesterol and desmosterol and increased levels of 7- and 8-dehydrocholesterol and of 7- and 8-dehydrodesmosterol in brain compared to the wild type. The profile of enzymatically formed oxysterols in the SLOS mouse resembles that in the wild type but the level of 24S-hydroxycholesterol, the dominating cholesterol metabolite, is reduced in a similar proportion to that of cholesterol. A number of oxysterols abundant in the SLOS mouse are probably derived from 7-dehydrocholesterol, however, the mechanism of their formation is unclear.
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DOI:
10.1073/pnas.96.13.7238
发表时间:
1999-06-22
影响因子:
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作者:
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影响因子:
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发表时间:
2007-10-01
影响因子:
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通讯作者:
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影响因子:
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