Abstract | BACKGROUND: OBJECTIVE: METHODS: Plasma and 10 tissues were collected from pigs (n = 10) fed a corn-soy-based control diet or that diet containing 3-7% lard from weanling to finishing (180 d). Plasma concentrations (n = 8) of cytokines and thyroid hormones and tissue mRNA abundance (n = 4) of 25 selenoprotein genes and 16 obesity-related genes were compared between the pigs fed the control and high-fat diets. Stepwise regression was applied to analyze correlations among all these measures, including the previously reported body physical and plasma biochemical variables. RESULTS: The high-fat diet elevated (P < 0.05) plasma concentrations of tumor necrosis factor α, interleukin-6, leptin, and leptin receptor by 29-42% and affected (P < 0.05-0.1) tissue mRNA levels of the selenoprotein and obesity-related genes in 3 patterns. Specifically, the high-fat diet up-regulated 12 selenoprotein genes in 6 tissues, down-regulated 13 selenoprotein genes in 7 tissues, and exerted no effect on 5 genes in any tissue. Body weights and plasma triglyceride concentrations of pigs showed the strongest regressions to tissue mRNA abundances of selenoprotein and obesity-related genes. Among the selenoprotein genes, selenoprotein V and I were ranked as the strongest independent variables for the regression of phenotypic and plasma measures. Meanwhile, agouti signaling protein, adiponectin, and resistin genes represented the strongest independent variables of the obesity-related genes for the regression of tissue selenoprotein mRNA. CONCLUSIONS:
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Authors | Hua Zhao, Ke Li, Jia-Yong Tang, Ji-Chang Zhou, Kang-Ning Wang, Xin-Jie Xia, Xin Gen Lei |
Journal | The Journal of nutrition
(J Nutr)
Vol. 145
Issue 7
Pg. 1394-401
(Jul 2015)
ISSN: 1541-6100 [Electronic] United States |
PMID | 25972525
(Publication Type: Journal Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov't)
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Copyright | © 2015 American Society for Nutrition. |
Chemical References |
- Adiponectin
- Agouti Signaling Protein
- Interleukin-6
- Leptin
- RNA, Messenger
- Receptors, Leptin
- Resistin
- Selenoproteins
- Thyroid Hormones
- Tumor Necrosis Factor-alpha
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Topics |
- Adiponectin
(genetics, metabolism)
- Agouti Signaling Protein
(genetics, metabolism)
- Animals
- Body Weight
- Diet, High-Fat
(adverse effects)
- Disease Models, Animal
- Down-Regulation
- Inflammation
(genetics)
- Interleukin-6
(blood)
- Leptin
(blood)
- Obesity
(etiology, genetics)
- RNA, Messenger
(genetics, metabolism)
- Receptors, Leptin
(blood)
- Resistin
(genetics, metabolism)
- Selenoproteins
(genetics, metabolism)
- Swine
- Thyroid Hormones
(blood)
- Tumor Necrosis Factor-alpha
(blood)
- Up-Regulation
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