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| Status |
Public on Jul 01, 2012 |
| Title |
MicroRNA expression in subcutaneous and visceral fat of beef steers fed different high or low fat diets |
| Organism |
Bos taurus |
| Experiment type |
Non-coding RNA profiling by array
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| Summary |
MicroRNAs are a class of molecular regulators found to participate in numerous biological processes, including adipogenesis. However, whether dietary changes impact on microRNA (miRNA) in ruminants has not been reported. Therefore, this study aimed to evaluate the dietary effect on miRNA expression in subcutaneous (backfat) and visceral fat depots (perirenal fat) from beef steers fed with different diets containing high or low fat levels. Fat tissues were collected from 16 Hereford x Aberdeen Angus cross bred steers (15.5 month old) fed high fat diet (5.85% fat, n=8) or control diet (1.95% fat, n=8). Total RNA from each animal was subjected to miRNA microarray analysis using a customized Agilent miRNA microarray containing 672 bovine miRNA probes. Expression of miRNAs was not equally detected under two diets; 169 miRNAs were commonly expressed while 75 were diet specific. The number of miRNAs detected per animal under high fat diet was higher than those fed control diet (p= 0.037 in subcutaneous fat and p= 0.002 in visceral fat).. Further qRT-PCR analysis confirmed that the expression of some miRNAs was highly influenced by diet (miR-19a, -92a, -92b, -101, -103, -106, -142-5p, and 296) or fat depot (miR-196a and -2454). Our results revealed that the miRNA expression can be influenced by types of fat tissues or diet, suggesting that miRNAs may regulate bovine adipogenesis when diet alters.
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| Overall design |
In this study, a total of 32 adipose tissue samples were analyzed by microRNA microarrays, being 16 subcutaneus (backfat) and 16 visceral (perirenal fat) fat depots were collected from 16 animals (Control diet = 8) (High fat diet = 8).
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| Contributor(s) |
Romao JM, Jin W, He M, McAllister T, Guan LL |
| Citation(s) |
22815773 |
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| Submission date |
Jan 11, 2012 |
| Last update date |
Aug 29, 2013 |
| Contact name |
Josue Moura Romao |
| Organization name |
University of Alberta
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| Department |
AFNS
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| Lab |
AGP
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| Street address |
116 St. and 85 Ave.
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| City |
Edmonton |
| State/province |
Alberta |
| ZIP/Postal code |
T6G 2P5 |
| Country |
Canada |
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| Platforms (1) |
| GPL15110 |
Agilent-030208/UofA Cow 8x15K miRNA array v.3 |
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| Samples (32)
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| GSM860629 |
Steer ID# 108 Control diet, subcutaneous fat |
| GSM860630 |
Steer ID# 111 Control diet, subcutaneous fat |
| GSM860631 |
Steer ID# 209 Control diet, subcutaneous fat |
| GSM860632 |
Steer ID# 211 Control diet, subcutaneous fat |
| GSM860633 |
Steer ID# 307 Control diet, subcutaneous fat |
| GSM860634 |
Steer ID# 308 Control diet, subcutaneous fat |
| GSM860635 |
Steer ID# 405 Control diet, subcutaneous fat |
| GSM860636 |
Steer ID# 410 Control diet, subcutaneous fat |
| GSM860637 |
Steer ID# 108 Control diet, visceral fat |
| GSM860638 |
Steer ID# 111 Control diet, visceral fat |
| GSM860639 |
Steer ID# 209 Control diet, visceral fat |
| GSM860640 |
Steer ID# 211 Control diet, visceral fat |
| GSM860641 |
Steer ID# 307 Control diet, visceral fat |
| GSM860642 |
Steer ID# 308 Control diet, visceral fat |
| GSM860643 |
Steer ID# 405 Control diet, visceral fat |
| GSM860644 |
Steer ID# 410 Control diet, visceral fat |
| GSM860645 |
Steer ID# 103 High fat diet, subcutaneous fat |
| GSM860646 |
Steer ID# 109 High fat diet, subcutaneous fat |
| GSM860647 |
Steer ID# 202 High fat diet, subcutaneous fat |
| GSM860648 |
Steer ID# 204 High fat diet, subcutaneous fat |
| GSM860649 |
Steer ID# 302 High fat diet, subcutaneous fat |
| GSM860650 |
Steer ID# 303 High fat diet, subcutaneous fat |
| GSM860651 |
Steer ID# 411 High fat diet, subcutaneous fat |
| GSM860652 |
Steer ID# 412 High fat diet, subcutaneous fat |
| GSM860653 |
Steer ID# 103 High fat diet, visceral fat |
| GSM860654 |
Steer ID# 109 High fat diet, visceral fat |
| GSM860655 |
Steer ID# 202 High fat diet, visceral fat |
| GSM860656 |
Steer ID# 204 High fat diet, visceral fat |
| GSM860657 |
Steer ID# 302 High fat diet, visceral fat |
| GSM860658 |
Steer ID# 303 High fat diet, visceral fat |
| GSM860659 |
Steer ID# 411 High fat diet, visceral fat |
| GSM860660 |
Steer ID# 412 High fat diet, visceral fat |
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| Relations |
| BioProject |
PRJNA151169 |
| Supplementary file |
Size |
Download |
File type/resource |
| GSE35012_RAW.tar |
24.0 Mb |
(http)(custom) |
TAR (of TXT) |
| Processed data included within Sample table |
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