Retinoic acid can be produced from excentric cleavage of beta-carotene in human intestinal mucosa.
Retinoic acid can be produced from excentric cleavage of beta-carotene in human intestinal mucosa.
复制标题
视黄酸可由人肠粘膜中β-胡萝卜素的偏心裂解产生。
DOI:
10.1016/0003-9861(92)90399-h
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发表时间:
1992
影响因子:
3.9
通讯作者:
Russell,RM
中科院分区:
文献类型:
--
作者:
Wang,XD;Krinsky,NI;Tang,GW;Russell,RM
The hypothesis that retinoic acid (RA) is produced from the excentric cleavage of β-carotene was tested in human intestinal homogenatesin vitro. Significant amounts of RA were identified by HPLC and derivatization after incubation of intestinal mucosal homogenates with retinal, β-carotene, or β-apocarotenals at 37 °C for 60 min. RA formation was inhibited, in a dose-dependent fashion, when retinal was incubated in the presence of 0.1–3.0 mmcitral (3,7-dimethyl-2,6-octadienal) under identical experimental conditions. The formation of RA from both β-carotene and β-apocarotenals was dose and time dependent and RA was the major metabolite of both β-apo8′-carotenal and β-apo- 12′-carotenal after the incubation. However, citral (0.1 to 4 mm) did not inhibit the formation of β-apocarotenals and RA from 2 μmβ-carotene (P> 0.05), which proves the existence of an excentric cleavage mechanism for β-carotene conversion into retinoids. Furthermore, RA formation from both β-apo-8′-carotenal and β-apo-12′-carotenal in human intestinal homogenate occurred in the presence of citral, which demonstrates that RA can be produced from excentric cleavage of β-carotene via a series of β-apocarotenals as intermediates.
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影响因子:
3.6
作者:
Y. Folman;R. Russell;G. Tang;G. Wolf
通讯作者:
G. Wolf
影响因子:
6.5
作者:
F. Crain;F.;Lotspeich;Krause;W. Virginia
通讯作者:
W. Virginia
影响因子:
11.2
作者:
Connor,MJ
通讯作者:
Connor,MJ
影响因子:
4.1
作者:
R. V. Sharma;S. Mathur;J. Ganguly
通讯作者:
J. Ganguly
影响因子:
--
作者:
J. Ganguly;P. Sastry
通讯作者:
P. Sastry