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| Status |
Public on Apr 24, 2013 |
| Title |
Effect of Lactobacillus brevis 119-2 isolated from turnip “Tsuda kabu” on hepatic cholesterol level in cholesterol-administrated rat |
| Organism |
Rattus norvegicus |
| Experiment type |
Expression profiling by array
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| Summary |
In previous in vitro study, we reported potential mechanism of cholesterol-lowering effect of Lactobacillus brevis119-2 (119-2) isolated from turnip “Tsuda kabu” is due to incorporation of cholesterol into 119-2 cell. In this study, we analyzed serum cholesterol and hepatic gene expression of Sprague-Dawley (SD) rat fed diet containing cholesterol with or without 119-2 for 2 weeks, to evaluate the cholesterol-lowering effect of 119-2 in vivo. Serum cholesterol of SD rat fed diet with 119-2 significantly decreased compared to SD rat fed diet without 119-2, and both viable and dead 119-2 indicated the effect. The result of hepatic gene analysis using DNA microarray suggested that potential mechanism of the cholesterol-lowering effect of 119-2 in vivo is inhibiting the activity of 3-hydroxy-3-methylglutaryl-CoA reductase by Insig (insulin induced gene) that is endoplasmic reticulum membrane protein, and catabolizing cholesterol to bile acid by Cyp7a1 (cytochrome P450 a1) that is the rate-limiting enzyme in the synthesis of bile acid from cholesterol. In addition, we concluded feeding 119-2 decreased serum low density lipoprotein (LDL) cholesterol by overexpression of Ldlr (LDL receptor gene). On the other hand, feeding Lactobacillus acidophilus ATCC43121 (ATCC) increased high density lipoprotein (HDL) cholesterol by over expression of Abca1 (ATP binding cassette sub-family A member 1 gene) and Angplt3 (Angiopoietin-like 3). These results suggested that 119-2 decrease the risk of atherosclerosis by serum cholesterol-lowering effect and improving effect of fatty liver and the LH (LDL cholesterol / HDL cholesterol) ratio.
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| Overall design |
Lactobacillus brevis119-2 (119-2) was isolated from turnip “Tsuda kabu” harvested in Matsue city, Shimane Prefecture, Japan, and was stored at Shimane Institute for industrial Technology. Male Jcl: SD rat (4 weeks of age) were obtained from CLEA Japan, Inc. (Tokyo, Japan). Rats were maintained under controlled environmental conditions (temperature 23 ± 3 ˚C, relative humidity 55% ± 25%, 12/12hr light - dark cycle) and given food and water ad libitum. All rats were acclimated 1 week prior to the experiment. Two groups of 11 rats each were treated respective group diets for 2weeks. Control group was fed high-cholesterol diet containing 10 g cholesterol/kg, 5 g cholic acid/kg, 985 g mouse & rat & rabbit diet (CRF-1) /kg obtained from Oriental yeast Co., Ltd (Tokyo, Japan). The other group was fed same highcholesterol diet with 10 g freeze-dried viable 119-2 /kg. This study and all procedures were approved by regulations and code of ethics in experimental animals Chitose Japan Food Research Laboratories.
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| Contributor(s) |
Watanabe S, Katsube T, Hattori H, Sato H, Ishijima T, Nakai Y, Abe K, Sonomoto K |
| Citation(s) |
23415664 |
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| Submission date |
Oct 22, 2012 |
| Last update date |
Jul 31, 2017 |
| Contact name |
Yuji Nakai |
| Organization name |
Hirosaki University
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| Department |
Institute of Regional Innovation
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| Lab |
Section of Food Sciences
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| Street address |
2-1-1, Yanagawa
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| City |
Aomori |
| State/province |
Aomori |
| ZIP/Postal code |
038-0012 |
| Country |
Japan |
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| Platforms (1) |
| GPL1355 |
[Rat230_2] Affymetrix Rat Genome 230 2.0 Array |
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| Samples (8)
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| GSM1023371 |
Liver, control diet administrated for 2 weeks, biological rep1 |
| GSM1023372 |
Liver, control diet administrated for 2 weeks, biological rep2 |
| GSM1023373 |
Liver, control diet administrated for 2 weeks, biological rep3 |
| GSM1023374 |
Liver, control diet administrated for 2 weeks, biological rep4 |
| GSM1023375 |
Liver, Lactobacillus brevis119-2 containing diet administrated for 2 weeks, biological rep1 |
| GSM1023376 |
Liver, Lactobacillus brevis119-2 containing diet administrated for 2 weeks, biological rep2 |
| GSM1023377 |
Liver, Lactobacillus brevis119-2 containing diet administrated for 2 weeks, biological rep3 |
| GSM1023378 |
Liver, Lactobacillus brevis119-2 containing diet administrated for 2 weeks, biological rep4 |
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| Relations |
| BioProject |
PRJNA178087 |
| Supplementary file |
Size |
Download |
File type/resource |
| GSE41734_RAW.tar |
18.7 Mb |
(http)(custom) |
TAR (of CEL) |
| Processed data included within Sample table |
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