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Effect of sodium 4-phenylbutyrate on clenbuterol-mediated muscle growth (2018)
Journal Article
Brown, D. M., Jones, S., Daniel, Z. C., Brearley, M. C., Lewis, J. E., Ebling, F. J., …Brameld, J. M. (2018). Effect of sodium 4-phenylbutyrate on clenbuterol-mediated muscle growth. PLoS ONE, 13(7), Article e0201481. https://doi.org/10.1371/journal.pone.0201481

Previously, we highlighted induction of an integrated stress response (ISR) gene program in skeletal muscle of pigs treated with a beta-adrenergic agonist. Hence we tested the hypothesis that the ER-stress inhibitor, sodium 4-phenylbutyrate (PBA), wo... Read More about Effect of sodium 4-phenylbutyrate on clenbuterol-mediated muscle growth.

Mitochondrial phosphoenolpyruvate carboxykinase (PEPCK-M) and serine biosynthetic pathway genes are co-ordinately increased during anabolic agent-induced skeletal muscle growth (2016)
Journal Article
Brown, D. M., Williams, H., Ryan, K., Wilson, T., Daniel, Z. C., Mareko, M. H. D., …Parr, T. (2016). Mitochondrial phosphoenolpyruvate carboxykinase (PEPCK-M) and serine biosynthetic pathway genes are co-ordinately increased during anabolic agent-induced skeletal muscle growth. Scientific Reports, 6(1), https://doi.org/10.1038/srep28693

We aimed to identify novel molecular mechanisms for muscle growth during administration of anabolic agents. Growing pigs (Duroc/(Landrace/Large-White)) were administered Ractopamine (a beta-adrenergic agonist; BA; 20 ppm in feed) or Reporcin (recombi... Read More about Mitochondrial phosphoenolpyruvate carboxykinase (PEPCK-M) and serine biosynthetic pathway genes are co-ordinately increased during anabolic agent-induced skeletal muscle growth.

The impact of growth promoters on muscle growth and the potential consequences for meat quality (2016)
Journal Article
Parr, T., Mareko, M. H., Ryan, K. J., Hemmings, K. M., Brown, D. M., & Brameld, J. M. (2016). The impact of growth promoters on muscle growth and the potential consequences for meat quality. Meat Science, 120, 93-99. doi:10.1016/j.meatsci.2016.04.022

To meet the demands of increased global meat consumption, animal production systems will have to become more efficient, or at least maintain the current efficiency utilizing feed ingredients that are not also used for human consumption. Use of growth... Read More about The impact of growth promoters on muscle growth and the potential consequences for meat quality.

Improving efficiency in meat production (2016)
Journal Article
Brameld, J. M., & Parr, T. (in press). Improving efficiency in meat production. Proceedings of the Nutrition Society, https://doi.org/10.1017/S0029665116000161

Selective breeding and improved nutritional management over the past 20–30 years has resulted in dramatic improvements in growth efficiency for pigs and poultry, particularly lean tissue growth. However, this has been achieved using high-quality feed... Read More about Improving efficiency in meat production.

Transcriptome analysis of mRNA and miRNA in skeletal muscle indicates an important network for differential Residual Feed Intake in pigs (2015)
Journal Article
Jing, L., Wu, H., Miao, Y., Cao, J., Brameld, J. M., Parr, T., & Zhao, S. (2015). Transcriptome analysis of mRNA and miRNA in skeletal muscle indicates an important network for differential Residual Feed Intake in pigs. Scientific Reports, 5, Article 11953. https://doi.org/10.1038/srep11953

Feed efficiency (FE) can be measured by feed conversion ratio (FCR) or residual feed intake (RFI). In this study, we measured the FE related phenotypes of 236 castrated purebred Yorkshire boars, and selected 10 extreme individuals with high and low R... Read More about Transcriptome analysis of mRNA and miRNA in skeletal muscle indicates an important network for differential Residual Feed Intake in pigs.

Expression of the myosin heavy chain IIB gene in porcine skeletal muscle: the role of the CArG-box promoter response element (2014)
Journal Article
Brown, D. M., Brameld, J. M., & Parr, T. (2014). Expression of the myosin heavy chain IIB gene in porcine skeletal muscle: the role of the CArG-box promoter response element. PLoS ONE, 9(12), Article e114365. https://doi.org/10.1371/journal.pone.0114365

Due to its similarity to humans, the pig is increasingly being considered as a good animal model for studying a range of human diseases. Despite their physiological similarities, differential expression of the myosin heavy chain (MyHC) IIB gene (MYH4... Read More about Expression of the myosin heavy chain IIB gene in porcine skeletal muscle: the role of the CArG-box promoter response element.

Differential effects of short-term ? agonist and growth hormone treatments on expression of myosin heavy chain IIB and associated metabolic genes in sheep muscle (2014)
Journal Article
Hemmings, K. M., Daniel, Z. C., Buttery, P. J., Parr, T., & Brameld, J. M. (2015). Differential effects of short-term ? agonist and growth hormone treatments on expression of myosin heavy chain IIB and associated metabolic genes in sheep muscle. animal, 9(2), 285-294. https://doi.org/10.1017/s175173111400233x

Growth hormone (GH) and ? agonists increase muscle mass, but the mechanisms for this response are unclear and the magnitude of response is thought to vary with age of animal. To investigate the mechanisms driving the muscle response to these agents,... Read More about Differential effects of short-term ? agonist and growth hormone treatments on expression of myosin heavy chain IIB and associated metabolic genes in sheep muscle.

Dose-dependent effects of vitamin D on transdifferentiation of skeletal muscle cells to adipose cells (2013)
Journal Article
Ryan, K. J., Daniel, Z. C., Craggs, L. J., Parr, T., & Brameld, J. M. (2013). Dose-dependent effects of vitamin D on transdifferentiation of skeletal muscle cells to adipose cells. Journal of Endocrinology, 217(1), 45-58. https://doi.org/10.1530/JOE-12-0234

Fat infiltration within muscle is one of a number of features of vitamin D deficiency, which leads to a decline in muscle functionality. The origin of this fat is unclear, but one possibility is that it forms from myogenic precursor cells present in... Read More about Dose-dependent effects of vitamin D on transdifferentiation of skeletal muscle cells to adipose cells.

Myosin heavy chain mRNA isoforms are expressed in two distinct cohorts during C2C12 myogenesis (2011)
Journal Article
Brown, D. M., Parr, T., & Brameld, J. M. (2012). Myosin heavy chain mRNA isoforms are expressed in two distinct cohorts during C2C12 myogenesis. Journal of Muscle Research and Cell Motility, 32(6), 383-390. https://doi.org/10.1007/s10974-011-9267-4

The regulation of muscle fibre transitions has mainly been studied in vivo using conventional histological or immunohistochemical techniques. In order to investigate the molecular regulation of myosin heavy chain (MyHC) isoform expression in cell cul... Read More about Myosin heavy chain mRNA isoforms are expressed in two distinct cohorts during C2C12 myogenesis.

Use of the Affymetrix human GeneChip array and genomic DNA hybridisation probe selection to study ovine transcriptomes (2011)
Journal Article
Graham, N. S., May, S. T., Daniel, Z. C., Emmerson, Z. F., Brameld, J. M., & Parr, T. (2011). Use of the Affymetrix human GeneChip array and genomic DNA hybridisation probe selection to study ovine transcriptomes. animal, 5(6), 861-866. https://doi.org/10.1017/S1751731110002533

Affymetrix GeneChip microarrays are a powerful tool to study global gene expression profiles and have been used on many species. However, no sheep-specific Affymetrix GeneChip is currently available and the bovine array is fairly limited in its cover... Read More about Use of the Affymetrix human GeneChip array and genomic DNA hybridisation probe selection to study ovine transcriptomes.

Calpastatin is associated with lymphovascular invasion in breast cancer (2011)
Journal Article
Storr, S. J., Mohammed, R. A., Woolston, C. M., Green, A. R., Parr, T., Spiteri, I., …Martin, S. G. (2011). Calpastatin is associated with lymphovascular invasion in breast cancer. Breast, 20(5), 413-418. https://doi.org/10.1016/j.breast.2011.04.002

Metastasis of breast cancer is a major contributor to mortality. Histological assessment of vascular invasion (VI) provides important prognostic information and demonstrates that VI occurs predominantly via lymphatics in breast cancer. We sought to e... Read More about Calpastatin is associated with lymphovascular invasion in breast cancer.

The calpain system and cancer (2011)
Journal Article
Storr, S. J., Carragher, N. O., Frame, M. C., Parr, T., & Martin, S. G. (2011). The calpain system and cancer. Nature Reviews Cancer, 11(5), 364-374. https://doi.org/10.1038/nrc3050

The calpains are a conserved family of cysteine proteinases that catalyse the controlled proteolysis of many specific substrates. Calpain activity is implicated in several fundamental physiological processes, including cytoskeletal remodelling, cellu... Read More about The calpain system and cancer.

Regulation of ovine and porcine stearoyl coenzyme A desaturase gene promoters by fatty acids and sterols (2010)
Journal Article
Zulkifli, R. M., Parr, T., Salter, A. M., & Brameld, J. M. (2010). Regulation of ovine and porcine stearoyl coenzyme A desaturase gene promoters by fatty acids and sterols. Journal of Animal Science, 88(8), 2565-2575. https://doi.org/10.2527/jas.2009-2603

Stearoyl CoA desaturase (SCD) is responsible for converting SFA into MUFA and plays an important role in regulating the fatty acid composition of tissues. Although the number of SCD isoforms differs among species, SCD-1 is the predominant isoform exp... Read More about Regulation of ovine and porcine stearoyl coenzyme A desaturase gene promoters by fatty acids and sterols.

Examination of myosin heavy chain isoform expression in ovine skeletal muscles (2009)
Journal Article
Hemmings, K. M., Parr, T., Daniel, Z. C., Picard, B., Buttery, P. J., & Brameld, J. M. (2009). Examination of myosin heavy chain isoform expression in ovine skeletal muscles. Journal of Animal Science, 87(12), 3915-3922. https://doi.org/10.2527/jas.2009-2067

The contractile and associated metabolic characteristics of muscles are determined by their myosin heavy chain (MHC) isoform expression. In large mammals, the level of MHCIIB expression, which is associated with fast glycolytic-type muscle fibers, ha... Read More about Examination of myosin heavy chain isoform expression in ovine skeletal muscles.

The effect of maternal undernutrition before muscle differentiation on the muscle fiber development of the newborn lamb (2005)
Journal Article
Fahey, A. J., Brameld, J. M., Parr, T., & Buttery, P. J. (2005). The effect of maternal undernutrition before muscle differentiation on the muscle fiber development of the newborn lamb. Journal of Animal Science, 83(11), 2564-2571. https://doi.org/10.2527/2005.83112564x

There is a need to improve the lean tissue content of ruminant animals destined for meat production. Muscle fiber number is set during fetal development. The effect of undernutrition of pregnant ewes on subsequent muscle fiber characteristics of thei... Read More about The effect of maternal undernutrition before muscle differentiation on the muscle fiber development of the newborn lamb.

The effect of maternal undernutrition before muscle differentiation on the muscle fiber development of the newborn lamb (2005)
Journal Article
Fahey, A. J., Brameld, J. M., Parr, T., & Buttery, P. J. (2005). The effect of maternal undernutrition before muscle differentiation on the muscle fiber development of the newborn lamb. Journal of Animal Science, 83(11), 2564-2571. https://doi.org/10.2527/2005.83112564x

There is a need to improve the lean tissue content of ruminant animals destined for meat production. Muscle fiber number is set during fetal development. The effect of undernutrition of pregnant ewes on subsequent muscle fiber characteristics of thei... Read More about The effect of maternal undernutrition before muscle differentiation on the muscle fiber development of the newborn lamb.

Ontogeny of factors associated with proliferation and differentiation of muscle in the ovine fetus (2005)
Journal Article
Fahey, A. J., Brameld, J. M., Parr, T., & Buttery, P. J. (2005). Ontogeny of factors associated with proliferation and differentiation of muscle in the ovine fetus. Journal of Animal Science, 83(10), 2330-2338

The number of muscle fibers within a muscle has been found to be of high importance for the growth potential of an animal, and this number is set during fetal development. The objective of this study was to identify the ontogeny of muscle cell differ... Read More about Ontogeny of factors associated with proliferation and differentiation of muscle in the ovine fetus.

Ontogeny of factors associated with proliferation and differentiation of muscle in the ovine fetus (2005)
Journal Article
Fahey, A. J., Brameld, J. M., Parr, T., & Buttery, P. J. (2005). Ontogeny of factors associated with proliferation and differentiation of muscle in the ovine fetus. Journal of Animal Science, 83(10), 2330-2338. https://doi.org/10.2527/2005.83102330x

The number of muscle fibers within a muscle has been found to be of high importance for the growth potential of an animal, and this number is set during fetal development. The objective of this study was to identify the ontogeny of muscle cell differ... Read More about Ontogeny of factors associated with proliferation and differentiation of muscle in the ovine fetus.

Expression of calpastatin isoforms in muscle and functionality of multiple calpastatin promoters (2004)
Journal Article
Parr, T., Jewell, K. K., Sensky, P. L., Brameld, J. M., Bardsley, R. G., & Buttery, P. J. (2004). Expression of calpastatin isoforms in muscle and functionality of multiple calpastatin promoters. Archives of Biochemistry and Biophysics, 427(1), 8-15. https://doi.org/10.1016/j.abb.2004.04.001

Calpastatin is the specific endogenous inhibitor of calpain proteinase that is encoded by a single gene. Transient transfection assays in both a non-fusing skeletal muscle and non-muscle cell-line demonstrated that the putative porcine calpastatin pr... Read More about Expression of calpastatin isoforms in muscle and functionality of multiple calpastatin promoters.