Abstract | BACKGROUND/AIMS: METHODS: We evaluated biliary lipid secretion and bile acid homeostasis in mice deficient for apo A-I compared with wild-type animals when fed with low- or high- cholesterol diets. In addition, we assessed the importance of murine apoA-I expression for gallstone formation after feeding a lithogenic diet. RESULTS:
Bile acid pool size and faecal excretion were within the normal range in chow- and cholesterol-fed apo A-I knockout (KO) mice. Basal biliary cholesterol secretion was comparable and increased similarly in both murine strains after cholesterol feeding. Lithogenic diet-fed apo A-I KO mice exhibited an impaired hypercholesterolaemic response owing to a lower increase in cholesterol levels transported in large lipoproteins. However, the lack of apo A-I expression did not affect biliary cholesterol precipitation or gallstone formation in lithogenic diet-fed mice. CONCLUSIONS:
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Authors | Ludwig Amigo, Verónica Quiñones, Andrea Leiva, Dolores Busso, Silvana Zanlungo, Flavio Nervi, Attilio Rigotti |
Journal | Liver international : official journal of the International Association for the Study of the Liver
(Liver Int)
Vol. 31
Issue 2
Pg. 263-71
(Feb 2011)
ISSN: 1478-3231 [Electronic] United States |
PMID | 21134113
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Copyright | © 2010 John Wiley & Sons A/S. |
Chemical References |
- Apolipoprotein A-I
- Bile Acids and Salts
- Cholesterol, HDL
- RNA, Messenger
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Topics |
- Animals
- Apolipoprotein A-I
(deficiency, genetics)
- Bile Acids and Salts
(metabolism)
- Cholesterol, HDL
(blood)
- Diet, Atherogenic
- Feces
(chemistry)
- Gallstones
(physiopathology)
- Mice
- Mice, Knockout
- RNA, Messenger
(isolation & purification)
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