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Hypolipidemic mechanism of oryzanol components- ferulic acid and phytosterols.

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Relation http://ir.cftri.com/13357/
http://dx.doi.org/10.1016/j.bbrc.2016.05.053
 
Title Hypolipidemic mechanism of oryzanol components- ferulic acid and phytosterols.
 
Creator Bhaskaragoud, G.
Rajath, Shivakumar
Mahendra, V. P.
Sunil Kumar, G.
Gopala Krishna, A. G.
Suresh Kumar, G.
 
Subject 22 Lipid Chemistry
 
Description The effect of oryzanol (well known hypolipidemic component in rice bran oil) and its chemical constituents- ferulic acid (FA) and phytosterols on hypolipidemia were investigated.
METHODS AND RESULTS:

Docking (in silico) studies showed that FA had a better binding ability with lipase while sterols bound well with HMG-CoA reductase. Further in vivo studies of feeding high fat (30%) to rats increased body weights, serum TC, TG, non-HDL-C and reduced HDL-C were observed, compared to normal diet fed group (ND). ORZ treated groups alleviated the lipid profile. Furthermore, increased organ weights, higher intestinal lipase activity, and liver lipid peroxidation was observed in the high-fat group (HF). These effects were ameliorated in oryzanol concentrate fed groups (ORZ). Higher fecal fat was found in ORZ groups, analysis of fecal matter by mass spectroscopy revealed the presence of FA. In vitro, a bile acid binding study supported the strong affinity of sterol towards bile acids. In conclusion, oryzanol in the intestine is cleaved into FA and sterol by intestinal lipase enzymes both lipase and HMG-CoA reductase activities were inhibited, respectively. These hydrolysates eliminated the bile acids, thus lowering lipid profiles.
 
Date 2016
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/13357/1/Biochemical%20and%20Biophysical%20Research%20Communications%202016.pdf
Bhaskaragoud, G. and Rajath, Shivakumar and Mahendra, V. P. and Sunil Kumar, G. and Gopala Krishna, A. G. and Suresh Kumar, G. (2016) Hypolipidemic mechanism of oryzanol components- ferulic acid and phytosterols. Biochemical and Biophysical Research Communications, 476 (2). pp. 82-89.