PMID- 26184696 OWN - NLM STAT- MEDLINE DCOM- 20160609 LR - 20150822 IS - 1879-1484 (Electronic) IS - 0021-9150 (Linking) VI - 242 IP - 1 DP - 2015 Sep TI - Plasma cholesterol-lowering activity of dietary dihydrocholesterol in hypercholesterolemia hamsters. PG - 77-86 LID - S0021-9150(15)30008-3 [pii] LID - 10.1016/j.atherosclerosis.2015.06.046 [doi] AB - OBJECTIVE: Cholesterol analogs have been used to treat hypercholesterolemia. The present study was to examine the effect of dihydrocholesterol (DC) on plasma total cholesterol (TC) compared with that of beta-sitosterol (SI) in hamsters fed a high cholesterol diet. METHODS AND RESULTS: Forty-five male hamsters were randomly divided into 6 groups, fed either a non-cholesterol diet (NCD) or one of five high-cholesterol diets without addition of DC and SI (HCD) or with addition of 0.2% DC (DA), 0.3% DC (DB), 0.2% SI (SA), and 0.3% SI (SB), respectively, for 6 weeks. Results showed that DC added into diet at a dose of 0.2% could reduce plasma TC by 21%, comparable to that of SI (19%). At a higher dose of 0.3%, DC reduced plasma TC by 15%, less effective than SI (32%). Both DC and SI could increase the excretion of fecal sterols, however, DC was more effective in increasing the excretion of neutral sterols but it was less effective in increasing the excretion of acidic sterols compared with SI. Results on the incorporation of sterols in micellar solutions clearly demonstrated both DC and SI could displace the cholesterol from micelles with the former being more effective than the latter. CONCLUSION: DC was equally effective in reducing plasma cholesterol as SI at a low dose. Plasma TC-lowering activity of DC was mediated by inhibiting the cholesterol absorption and increasing the fecal sterol excretion. CI - Copyright (c) 2015 Elsevier Ireland Ltd. All rights reserved. FAU - Wang, Xiaobo AU - Wang X AD - Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. FAU - Guan, Lei AU - Guan L AD - R&D, Nestle, Beijing 100022, China. FAU - Zhao, Youyou AU - Zhao Y AD - R&D, Nestle, Beijing 100022, China. FAU - Lei, Lin AU - Lei L AD - Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. FAU - Liu, Yuwei AU - Liu Y AD - Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. FAU - Ma, Ka Ying AU - Ma KY AD - Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. FAU - Wang, Lijun AU - Wang L AD - Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. FAU - Man, Sun Wa AU - Man SW AD - Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. FAU - Wang, Junkuan AU - Wang J AD - R&D, Nestle, Beijing 100022, China. FAU - Huang, Yu AU - Huang Y AD - School of Biomedical Sciences, Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. FAU - Chen, Zhen-Yu AU - Chen ZY AD - Food & Nutritional Sciences Programme, School of Life Sciences, The Chinese University of Hong Kong, Shatin, NT, Hong Kong, China. Electronic address: zhenyuchen@cuhk.edu.hk. LA - eng PT - Comparative Study PT - Journal Article DEP - 20150627 PL - Ireland TA - Atherosclerosis JT - Atherosclerosis JID - 0242543 RN - 0 (Anticholesteremic Agents) RN - 0 (Bile Acids and Salts) RN - 0 (Cholesterol, Dietary) RN - 0 (Lipids) RN - 0 (Lipoproteins) RN - 0 (Micelles) RN - 0 (RNA, Messenger) RN - 0 (Sitosterols) RN - 0 (Sterols) RN - 5LI01C78DD (gamma-sitosterol) RN - 8M308U816E (Cholestanol) RN - 97C5T2UQ7J (Cholesterol) SB - IM MH - Adipose Tissue/drug effects/pathology MH - Animal Feed/analysis MH - Animals MH - Anticholesteremic Agents/administration & dosage/*therapeutic use MH - Aortic Diseases/etiology/pathology/prevention & control MH - Atherosclerosis/etiology/pathology/prevention & control MH - Bile Acids and Salts/analysis MH - Cholestanol/administration & dosage/*therapeutic use MH - Cholesterol/*blood MH - Cholesterol, Dietary/administration & dosage/pharmacokinetics MH - Cricetinae MH - Drug Evaluation, Preclinical MH - Feces/chemistry MH - Gene Expression Profiling MH - Hyperlipoproteinemia Type II/blood/complications/*diet therapy MH - Intestinal Absorption/*drug effects MH - Lipids/blood MH - Lipoproteins/blood MH - Liver/chemistry/pathology MH - Male MH - Mesocricetus MH - Metabolic Networks and Pathways/genetics MH - Micelles MH - Molecular Structure MH - Organ Size/drug effects MH - Plaque, Atherosclerotic/pathology MH - RNA, Messenger/biosynthesis MH - Random Allocation MH - Sitosterols/administration & dosage/therapeutic use MH - Sterols/analysis MH - Viscera/drug effects/pathology OTO - NOTNLM OT - 5alpha-cholestanol OT - Cholesterol OT - Sterol OT - beta-sitosterol EDAT- 2015/07/18 06:00 MHDA- 2016/06/10 06:00 CRDT- 2015/07/18 06:00 PHST- 2015/02/25 00:00 [received] PHST- 2015/06/19 00:00 [revised] PHST- 2015/06/22 00:00 [accepted] PHST- 2015/07/18 06:00 [entrez] PHST- 2015/07/18 06:00 [pubmed] PHST- 2016/06/10 06:00 [medline] AID - S0021-9150(15)30008-3 [pii] AID - 10.1016/j.atherosclerosis.2015.06.046 [doi] PST - ppublish SO - Atherosclerosis. 2015 Sep;242(1):77-86. doi: 10.1016/j.atherosclerosis.2015.06.046. Epub 2015 Jun 27.