title: Effects of the roughage/concentrate ratio on the expression of angiogenic growth factors in adipose tissue of fattening Wagyu steers.
abstract: In this experiment, we studied the effects of the dietary roughage/concentrate ratio on the expression of the angiogenic growth factor (VEGF and FGF-2) and the adipogenic transcription factor (C/EBPβ, C/EBPα, and PPARγ) gene in the adipose tissues of Wagyu steers. Steers were fed a high-roughage diet (R group, 35% roughage and 65% concentrate on a TDN basis) or a high-concentrate diet (C group, 10% roughage and 90% concentrate) during the entire fattening period (from 10 to 30months of age) with the same amount of TDN intake between groups. In mesenteric and intermuscular adipocytes, the expression of the angiogenic growth factors was higher in the R group than in the C group. In contrast, the expression of adipogenic transcription factors in the subcutaneous and intramuscular adipocytes was higher in the C group than in the R group. These results indicate that the dietary roughage/concentrate ratio affects the fat depot-specific differences in the angiogenic and adipogenic gene expression pattern.
authors: National Institute of Livestock and Grassland Science, Nasushiobara-shi, Tochigi-ken 329-2793, Japan. toyamada@affrc.go.jp
authors: T
authors: T
authors: Yamada
authors: N
authors: N
authors: Nakanishi
mesh_terms: D017667:Adipocytes / Q000378:metabolism; D000273:Adipose Tissue / Q000378:metabolism*; D000821:Animal Feed / Q000032:analysis; D000818:Animals; D022763:CCAAT-Enhancer-Binding Protein-alpha / Q000235:genetics / Q000378:metabolism; D022782:CCAAT-Enhancer-Binding Protein-beta / Q000235:genetics / Q000378:metabolism; D002417:Cattle; D004032:Diet / Q000662:veterinary*; D004043:Dietary Fiber / Q000008:administration & dosage*; D002149:Energy Intake; D016222:Fibroblast Growth Factor 2 / Q000235:genetics / Q000378:metabolism; D005786:Gene Expression Regulation; D036341:Intercellular Signaling Peptides and Proteins / Q000378:metabolism; D008297:Male; D018482:Muscle, Skeletal / Q000737:chemistry; D047495:PPAR gamma / Q000235:genetics / Q000378:metabolism; D012313:RNA / Q000302:isolation & purification; D042461:Vascular Endothelial Growth Factor A / Q000235:genetics / Q000378:metabolism; D015430:Weight Gain
chemical_list: D022763:CCAAT-Enhancer-Binding Protein-alpha; D022782:CCAAT-Enhancer-Binding Protein-beta; D004043:Dietary Fiber; D036341:Intercellular Signaling Peptides and Proteins; D047495:PPAR gamma; D042461:Vascular Endothelial Growth Factor A; D016222:Fibroblast Growth Factor 2; D012313:RNA