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Liu J, Nong Q, Wang J, Chen W, Xu Z, You W, Xie J, Wang Y, Shan T. Breed difference and regulatory role of CRTC3 in porcine intramuscular adipocyte. Anim Genet 2020; 51:521-530. [PMID: 32400010 DOI: 10.1111/age.12945] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2020] [Indexed: 12/17/2022]
Abstract
The cAMP responsive element binding protein (CREB)-regulated transcription coactivator 3 (CRTC3) is a member of the CRTC protein family and plays an important role in energy metabolism. The aim of this study was to determine if the expression of porcine CRTC3 is related to intramuscular fat (IMF) deposition and meat quality in Heigai pigs (a local fatty breed in China) and Duroc × Landrace × Yorkshire (DLY) pigs (a lean crossbred pig widely cultured in China). In addition, the effect of ectopic expression of CRTC3 on gene expression in porcine IMF adipocytes was also examined. Our results showed that Heigai pigs had lower lean percentage, thicker back fat thickness and smaller loin muscle area than DLY pigs. Compared with DLY pigs, Heigai pigs had higher marbling scores, better meat color and higher IMF contents and triglyceride concentrations. Higher levels of oxidative metabolic enzyme and expression of the slow oxidative muscle fiber-related genes were observed in longissimus dorsi muscle and psoas major muscle (P < 0.05) from Heigai pigs. Notably, CRTC3 and adipocyte-specific marker genes were highly expressed in muscle tissues of Heigai pigs. The expression of lipolysis-related genes ATGL and HSL were lower in Heigai muscles. Moreover, forced expression of CRTC3 promoted lipid accumulation and increased the expression of PPARγ, C/EBPα, leptin and FABP4 (P < 0.05), whereas it decreased the expression of ATGL and HSL in IMF adipocytes. These results suggest that CRTC3 expression is associated with lipid accumulation and IMF deposition in pigs.
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Affiliation(s)
- J Liu
- Zhejiang Provincial Laboratory of Feed and Animal Nutrition, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, China
| | - Q Nong
- Zhejiang Provincial Laboratory of Feed and Animal Nutrition, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, China
| | - J Wang
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, 250100, China
| | - W Chen
- Zhejiang Provincial Laboratory of Feed and Animal Nutrition, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, China
| | - Z Xu
- Zhejiang Provincial Laboratory of Feed and Animal Nutrition, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, China
| | - W You
- Zhejiang Provincial Laboratory of Feed and Animal Nutrition, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, China
| | - J Xie
- Shandong Chunteng Food Co. Ltd, Zaozhuang, Shandong, 277500, China
| | - Y Wang
- Zhejiang Provincial Laboratory of Feed and Animal Nutrition, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, China
| | - T Shan
- Zhejiang Provincial Laboratory of Feed and Animal Nutrition, The Key Laboratory of Molecular Animal Nutrition, Ministry of Education, Institute of Feed Science, College of Animal Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou, Zhejiang, 310058, China
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Effects of dietary levels of brown seaweeds and plant polyphenols on growth and meat quality parameters in growing rabbit. Meat Sci 2019; 161:107987. [PMID: 31683222 DOI: 10.1016/j.meatsci.2019.107987] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 10/18/2019] [Accepted: 10/18/2019] [Indexed: 01/20/2023]
Abstract
Growth performances, carcass characteristics and meat quality parameters from growing rabbit fed with two levels of dietary brown seaweed (Laminaria spp) and plant polyphenols were investigated. One hundred and forty-four New Zealand White rabbits were allotted into three dietary treatments containing 0 (C), 0.3% (T1), and 0.6% (T2) of brown seaweed and plant polyphenols mixture for 42 days. Growth performances and carcass weight were improved in T1 group. Vitamin A and E content in Longissimus thoracis and lumborum (LTL) and Semimembranosus (SM) muscle were enhanced in the treated groups. In the SM muscle, the oxidative stability was improved in rabbit fed with both dosages of dietary supplement, and the cholesterol content tended to be lower in T1 than in T2 and C groups. The LTL and SM muscle sensory characteristics were improved. In conclusion, dietary integration with a low dosage of brown seaweed and plant polyphenols is a valid strategy for enhance growth performance and produce healthier rabbit meat.
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Burns JM, Lestyk K, Freistroffer D, Hammill MO. Preparing Muscles for Diving: Age-Related Changes in Muscle Metabolic Profiles in Harp (Pagophilus groenlandicus) and Hooded (Cystophora cristata) Seals. Physiol Biochem Zool 2015; 88:167-82. [PMID: 25730272 DOI: 10.1086/680015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In adult marine mammals, muscles can sustain aerobic metabolism during dives in part because they contain large oxygen (O2) stores and metabolic rates are low. However, young pups have significantly lower tissue O2 stores and much higher mass-specific metabolic rates. To investigate how these differences may influence muscle function during dives, we measured the activities of enzymes involved in aerobic and anaerobic metabolic pathways (citrate synthase [CS], β-hydroxyacyl-coenzyme A dehydrogenase [HOAD], lactate dehydrogenase [LDH]) and the LDH isoform profile in six muscles from 41 harp (Pagophilus groenlandicus) and 30 hooded (Cystophora cristata) seals ranging in age from fetal to adult. All neonatal muscles had significantly higher absolute but lower metabolically scaled CS and HOAD activities than adults (∼ 70% and ∼ 85% lower, respectively). Developmental increases in LDH activity lagged that of aerobic enzymes and were not accompanied by changes in isozyme profile, suggesting that changes in enzyme concentration rather than structure determine activity levels. Biochemical maturation proceeded faster in the major locomotory muscles. In combination, findings suggest that pup muscles are unable to support strenuous aerobic exercise or rely heavily on anaerobic metabolism during early diving activities and that pups' high mass-specific metabolic rates may play a key role in limiting the ability of their muscles to support underwater foraging.
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Affiliation(s)
- J M Burns
- Department of Biological Sciences, University of Alaska, Anchorage, Alaska 99508; 2Department of Life Sciences, Great Basin College, Elko, Nevada 89801; 3Maurice Lamontagne Institute, Department of Fisheries and Oceans, Mont-Joli, Québec, Canada
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Burns JM, Skomp N, Bishop N, Lestyk K, Hammill M. Development of aerobic and anaerobic metabolism in cardiac and skeletal muscles from harp and hooded seals. ACTA ACUST UNITED AC 2010; 213:740-8. [PMID: 20154189 DOI: 10.1242/jeb.037929] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In diving animals, skeletal muscle adaptations to extend underwater time despite selective vasoconstriction include elevated myoglobin (Mb) concentrations, high acid buffering ability (beta) and high aerobic and anaerobic enzyme activities. However, because cardiac muscle is perfused during dives, it may rely less heavily on Mb, beta and anaerobic pathways to support contractile activity. In addition, because cardiac tissue must sustain contractile activity even before birth, it may be more physiologically mature at birth and/or develop faster than skeletal muscles. To test these hypotheses, we measured Mb levels, beta and the activities of citrate synthase (CS), beta-hydroxyacyl-CoA dehydrogenase (HOAD) and lactate dehydrogenase (LDH) in cardiac and skeletal muscle samples from 72 harp and hooded seals, ranging in age from fetuses to adults. Results indicate that in adults cardiac muscle had lower Mb levels (14.7%), beta (55.5%) and LDH activity (36.2%) but higher CS (459.6%) and HOAD (371.3%) activities (all P<0.05) than skeletal muscle. In addition, while the cardiac muscle of young seals had significantly lower [Mb] (44.7%) beta (80.7%) and LDH activity (89.5%) than adults (all P<0.05), it was relatively more mature at birth and weaning than skeletal muscle. These patterns are similar to those in terrestrial species, suggesting that seal hearts do not exhibit unique adaptations to the challenges of an aquatic existence.
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Affiliation(s)
- J M Burns
- Department of Biological Sciences, University of Alaska, Anchorage, AK 99508, USA.
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Santé-Lhoutellier V, Gatellier P, Fiot I, Durand D, Micol D, Picard B. Specific features of muscles and meat from ‘AOC’ guaranteed-origin Taureau de Camargue beef cattle. Livest Sci 2010. [DOI: 10.1016/j.livsci.2009.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Prewitt JS, Freistroffer DV, Schreer JF, Hammill MO, Burns JM. Postnatal development of muscle biochemistry in nursing harbor seal (Phoca vitulina) pups: limitations to diving behavior? J Comp Physiol B 2010; 180:757-66. [PMID: 20140678 DOI: 10.1007/s00360-010-0448-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2009] [Revised: 01/12/2010] [Accepted: 01/15/2010] [Indexed: 10/19/2022]
Abstract
Adult marine mammal muscles rely upon a suite of adaptations for sustained aerobic metabolism in the absence of freely available oxygen (O(2)). Although the importance of these adaptations for supporting aerobic diving patterns of adults is well understood, little is known about postnatal muscle development in young marine mammals. However, the typical pattern of vertebrate muscle development, and reduced tissue O(2) stores and diving ability of young marine mammals suggest that the physiological properties of harbor seal (Phoca vitulina) pup muscle will differ from those of adults. We examined myoglobin (Mb) concentration, and the activities of citrate synthase (CS), beta-hydroxyacyl coA dehydrogenase (HOAD), and lactate dehydrogenase (LDH) in muscle biopsies from harbor seal pups throughout the nursing period, and compared these biochemical parameters to those of adults. Pups had reduced O(2) carrying capacity ([Mb] 28-41% lower than adults) and reduced metabolically scaled catabolic enzyme activities (LDH/RMR 20-58% and CS/RMR 29-89% lower than adults), indicating that harbor seal pup muscles are biochemically immature at birth and weaning. This suggests that pup muscles do not have the ability to support either the aerobic or anaerobic performance of adult seals. This immaturity may contribute to the lower diving capacity and behavior in younger pups. In addition, the trends in myoglobin concentration and enzyme activity seen in this study appear to be developmental and/or exercise-driven responses that together work to produce the hypoxic endurance phenotype seen in adults, rather than allometric effects due to body size.
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Affiliation(s)
- J S Prewitt
- Department of Biological Sciences, University of Alaska Anchorage, 3211 Providence Dr, Anchorage, AK 99508, USA.
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Intramuscular fat content in meat-producing animals: development, genetic and nutritional control, and identification of putative markers. Animal 2010; 4:303-19. [PMID: 22443885 DOI: 10.1017/s1751731109991091] [Citation(s) in RCA: 500] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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Moinard C, Gupta S, Besson V, Morio B, Marchand-Leroux C, Chaumeil JC, Cynober L, Charrueau C. Evidence for impairment of hepatic energy homeostasis in head-injured rat. J Neurotrauma 2008; 25:124-9. [PMID: 18260795 DOI: 10.1089/neu.2007.0391] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Traumatic brain injury (TBI) is known to induce a metabolic adaptation characterized by a nitrogen transfer from the periphery to the liver. However, the consequences of TBI on liver energy status are poorly documented. We evaluated the consequences of TBI on liver energy homeostasis in rats. In a first set of experiments, rats were randomized into two groups: a TBI group traumatized by fluid percussion, and an ad libitum fed group (AL) of healthy rats. The rats were sacrificed at 2, 3, or 4 days (D2, D3, and D4, respectively to determine the kinetic of hepatic energy changes). Since TBI leads to a profound anorexia, in a second set of experiments TBI rats received enteral nutrition (TBI-EN group) for 4 days to specifically assess the role of anorexia in the hepatic disturbances. TBI led to a decrease in hepatic glycogen (D2: TBI 3.9 +/- 1.9 vs. AL 18.9 +/- 2.6 mg/g, p < 0.05) and ATP (D2: TBI 540 +/- 57 vs. AL 850 +/- 44 nmol/g, p < 0.05) contents. These effects were not linked to anorexia, since they were observed when rats were fed using continuous enteral nutrition. Interestingly, there was no adaptation of the mitochondrial oxidative capacity to compensate for the increase in energy requirements (cytochrome C oxidase activity: AL, 82 +/- 5; TBI, 82 +/- 4; and TBI-EN, 87 +/- 3 micromol/min/g, NS). These findings demonstrate that TBI is responsible for an impairment of liver energy homeostasis. Moreover, these alterations are related neither to anorexia nor to decreased mitochondrial oxidative capacity.
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Affiliation(s)
- Christophe Moinard
- Laboratoire de Biologie de la Nutrition EA 2498, Faculté de Pharmacie, Université Paris Descartes, Paris, France
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Wang YH, Reverter A, Mannen H, Taniguchi M, Harper GS, Oyama K, Byrne KA, Oka A, Tsuji S, Lehnert SA. Transcriptional profiling of muscle tissue in growing Japanese Black cattle to identify genes involved with the development of intramuscular fat. ACTA ACUST UNITED AC 2005. [DOI: 10.1071/ea05058] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Japanese Black cattle are characterised by a unique ability to deposit intramuscular fat with lower melting temperature. In this study, 3 consecutive biopsies from Longissimus muscle tissue were taken and RNA isolated from 3 Japanese Black (Tajima strain) and 3 Holstein animals at age 11–20 months. The gene expression changes in these samples were analysed using a bovine fat/muscle cDNA microarray. A mixed-ANOVA model was fitted to the intensity signals. A total of 335 (4.8%) array elements were identified as differentially expressed genes in this breed × time comparison study. Genes preferentially expressed in Japanese Black are associated with mono-unsaturated fatty acid synthesis, fat deposition, adipogenesis development and muscle regulation, while examples of genes preferentially expressed in Holstein come from functional classes involved in connective tissue and skeletal muscle development. The gene expression differences detected between the Longissimus muscle of the 2 breeds give important clues to the molecular basis for the unique features of the Japanese Black breed, such as the onset and rate of adipose tissue development, metabolic differences, and signalling pathways involved in converting carbohydrate to lipid during lipogenesis. These findings will impact on industry management strategies designed to manipulate intramuscular adipose development at different development stages to gain maximum return for beef products.
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Gondret F, Jadhao SB, Damon M, Herpin P, Viglietta C, Houdebine LM, Hocquette JF. Unusual metabolic characteristics in skeletal muscles of transgenic rabbits for human lipoprotein lipase. Lipids Health Dis 2004; 3:27. [PMID: 15588304 PMCID: PMC543452 DOI: 10.1186/1476-511x-3-27] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2004] [Accepted: 12/09/2004] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The lipoprotein lipase (LPL) hydrolyses circulating triacylglycerol-rich lipoproteins. Thereby, LPL acts as a metabolic gate-keeper for fatty acids partitioning between adipose tissue for storage and skeletal muscle primarily for energy use. Transgenic mice that markedly over-express LPL exclusively in muscle, show increases not only in LPL activity, but also in oxidative enzyme activities and in number of mitochondria, together with an impaired glucose tolerance. However, the role of LPL in intracellular nutrient pathways remains uncertain. To examine differences in muscle nutrient uptake and fatty acid oxidative pattern, transgenic rabbits harboring a DNA fragment of the human LPL gene (hLPL) and their wild-type littermates were compared for two muscles of different metabolic type, and for perirenal fat. RESULTS Analyses of skeletal muscles and adipose tissue showed the expression of the hLPL DNA fragment in tissues of the hLPL group only. Unexpectedly, the activity level of LPL in both tissues was similar in the two groups. Nevertheless, mitochondrial fatty acid oxidation rate, measured ex vivo using [1-(14C)]oleate as substrate, was lower in hLPL rabbits than in wild-type rabbits for the two muscles under study. Both insulin-sensitive glucose transporter GLUT4 and muscle fatty acid binding protein (H-FABP) contents were higher in hLPL rabbits than in wild-type littermates for the pure oxidative semimembranosus proprius muscle, but differences between groups did not reach significance when considering the fast-twitch glycolytic longissimus muscle. Variations in both glucose uptake potential, intra-cytoplasmic binding of fatty acids, and lipid oxidation rate observed in hLPL rabbits compared with their wild-type littermates, were not followed by any modifications in tissue lipid content, body fat, and plasma levels in energy-yielding metabolites. CONCLUSIONS Expression of intracellular binding proteins for both fatty acids and glucose, and their following oxidation rates in skeletal muscles of hLPL rabbits were not fully consistent with the physiology rules. The modifications observed in muscle metabolic properties might not be directly associated with any LPL-linked pathways, but resulted likely of transgene random insertion into rabbit organism close to any regulatory genes. Our findings enlighten the risks for undesirable phenotypic modifications in micro-injected animals and difficulties of biotechnology in mammals larger than mice.
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Affiliation(s)
| | - Sanjay B Jadhao
- INRA, Unité de Recherche sur les Herbivores, 63122 Saint-Genès Champanelle, France
| | - Marie Damon
- INRA, UMR sur le Veau et le Porc, 35590 Saint Gilles, France
| | - Patrick Herpin
- INRA, UMR sur le Veau et le Porc, 35590 Saint Gilles, France
| | - Céline Viglietta
- INRA, Biologie du Développement et Reproduction, Domaine de Vilvert, 78352 Jouy-en-Josas cedex, France
| | - Louis-Marie Houdebine
- INRA, Biologie du Développement et Reproduction, Domaine de Vilvert, 78352 Jouy-en-Josas cedex, France
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