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Associate Professor Phil Sheard

Phil SheardAssociate Professor Phil Sheard is interested in sarcopenia, the age-related loss of muscle mass and strength that has profound implications for the elderly.

He is specifically interested in the role of the motor nerve terminal because progressive withdrawal of the motor nerve from the muscle fibre seems to be a conspicuous feature of elderly muscle. He is currently examining age-related changes to the neuromuscular junction with a view to using this information to establish whether motor nerve withdrawal is a cause of muscle fibre death, or a consequence of it.

Associate Professor Sheard uses electrophysiology, electron microscopy, confocal microscopy, fluorescence and transmitted light microscopy, histochemistry, immunohistochemistry, and anterograde and retrograde cell tracing techniques.

Find out more about Associate Professor Phil Sheard’s work.

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Publications

Lal, N., & Sheard, P. (2015). Dying myofibers in elderly mouse skeletal muscles are characterized by the appearance of dystrophin-encircled vacuoles. Biogerontology, 16, 443-459. doi: 10.1007/s10522-015-9565-0

Gillon, A., & Sheard, P. (2015). Elderly mouse skeletal muscle fibres have a diminished capacity to upregulate NCAM production in response to denervation. Biogerontology, 16(6), 811-823. doi: 10.1007/s10522-015-9608-6

McMahon, C. D., Chai, R., Radley-Crabb, H. G., Watson, T., Matthews, K. G., Sheard, P. W., … Shavlakadze, T. (2014). Lifelong exercise and locally produced insulin-like growth factor-1 (IGF-1) have a modest influence on reducing age-related muscle wasting in mice. Scandinavian Journal of Medicine & Science in Sports, 24(6), e423-e435. doi: 10.1111/sms.12200

Davies, T. M., Cornwall, J., & Sheard, P. W. (2013). Modelling dichotomously marked muscle fibre configurations. Statistics in Medicine, 32(24), 4240-4258. doi: 10.1002/sim.5806

Rowlands, D. S., Page, R. A., Sukala, W. R., Giri, M., Ghimbovschi, S. D., Hayat, I., … Leikis, M., Sheard, P. W., Wakefield, St. J., … Krebs, J., … Hoffman, E. P. (2014). Multi-omic integrated networks connect DNA methylation and miRNA with skeletal muscle plasticity to chronic exercise in Type 2 diabetic obesity. Physiological Genomics, 46(20), 747-765. doi: 10.1152/physiolgenomics.00024.2014

Journal - Research Article

Cornwall, J., Farrell, S. F., & Sheard, P. W. (2016). Fibre types of human suboccipital muscles. European Journal of Anatomy, 20(1), 31-36.

Thaung, H. P. A., Baldi, J. C., Wang, H.-Y., Hughes, G., Cook, R. F., Bussey, C. T., Sheard, P. W., Bahn, A., Jones, P. P., Schwenke, D. O., & Lamberts, R. R. (2015). Increased efferent cardiac sympathetic nerve activity and defective intrinsic heart rate regulation in type 2 diabetes. Diabetes, 64(8), 2944-2956. doi: 10.2337/db14-0955

Lal, N., & Sheard, P. (2015). Dying myofibers in elderly mouse skeletal muscles are characterized by the appearance of dystrophin-encircled vacuoles. Biogerontology, 16, 443-459. doi: 10.1007/s10522-015-9565-0

Gillon, A., & Sheard, P. (2015). Elderly mouse skeletal muscle fibres have a diminished capacity to upregulate NCAM production in response to denervation. Biogerontology, 16(6), 811-823. doi: 10.1007/s10522-015-9608-6

Hellyer, S. D., Selwood, A. I., van Ginkel, R., Munday, R., Sheard, P., Miles, C. O., … Kerr, D. S. (2014). In vitro labelling of muscle type nicotinic receptors using a fluorophore-conjugated pinnatoxin F derivative. Toxicon, 87, 17-25. doi: 10.1016/j.toxicon.2014.05.013

McMahon, C. D., Chai, R., Radley-Crabb, H. G., Watson, T., Matthews, K. G., Sheard, P. W., … Shavlakadze, T. (2014). Lifelong exercise and locally produced insulin-like growth factor-1 (IGF-1) have a modest influence on reducing age-related muscle wasting in mice. Scandinavian Journal of Medicine & Science in Sports, 24(6), e423-e435. doi: 10.1111/sms.12200

Rowlands, D. S., Page, R. A., Sukala, W. R., Giri, M., Ghimbovschi, S. D., Hayat, I., … Leikis, M., Sheard, P. W., Wakefield, St. J., … Krebs, J., … Hoffman, E. P. (2014). Multi-omic integrated networks connect DNA methylation and miRNA with skeletal muscle plasticity to chronic exercise in Type 2 diabetic obesity. Physiological Genomics, 46(20), 747-765. doi: 10.1152/physiolgenomics.00024.2014

Davies, T. M., Cornwall, J., & Sheard, P. W. (2013). Modelling dichotomously marked muscle fibre configurations. Statistics in Medicine, 32(24), 4240-4258. doi: 10.1002/sim.5806

Sheard, P. W., & Anderson, R. D. (2012). Age-related loss of muscle fibres is highly variable amongst mouse skeletal muscles. Biogerontology, 13(2), 157-167. doi: 10.1007/s10522-011-9365-0

Sheard, P. W., Bewick, G. S., Woolley, A. G., Shaw, J., Fisher, L., Fong, S. W., & Duxson, M. J. (2010). Investigation of neuromuscular abnormalities in neurotrophin-3-deficient mice. European Journal of Neuroscience, 31(1), 29-41. doi: 10.1111/j.1460-9568.2009.07032.x

Woolley, A. G., Tait, K. J., Hurren, B. J., Fisher, L., Sheard, P. W., & Duxson, M. J. (2008). Developmental loss of NT-3 in vivo results in reduced levels of myelin-specific proteins, a reduced extent of myelination and increased apoptosis of Schwann cells. GLIA, 56(3), 306-317. doi: 10.1002/glia.20614

Woolley, A. G., Sheard, P. W., & Duxson, M. J. (2005). Neurotrophin-3 null mutant mice display a postnatal motor neuropathy. European Journal of Neuroscience, 21, 2100-2110.

Sheard, P. W., Paul, A., & Duxson, M. J. (2002). Intramuscular force transmission. Advances in Experimental Medicine & Biology, 508, 495-499.

Paul, A. C., Sheard, P. W., Kaufman, S. J., & Duxson, M. J. (2002). Localization of α7 integrins and dystrophin suggests potential for both lateral and longitudinal transmission of tension in large mammalian muscles. Cell & Tissue Research, 308, 255-265.

Scarlett, J. L., Sheard, P. W., Hughes, G., Ledgerwood, E. C., Ku, H.-H., & Murphy, M. P. (2000). Changes in mitochondrial membrane potential during staurosporine-induced apoptosis in Jurkat cells. FEBS Letters, 475, 267-272.

Young, M., Paul, A., Rodda, J., Duxson, M. J., & Sheard, P. W. (2000). Examination of intrafascicular muscle fiber terminations: Implications for tension delivery in series-fibered muscles. Journal of Morphology, 245, 130-145.

Sheard, P. W. (2000). Tension delivery from short fibers in long muscles. Exercise & Sport Sciences Reviews, 28(2), 51-56.

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Journal - Professional & Other Non-Research Articles

Davies, T. M., Sheard, P. W., & Cornwall, J. (2016). Comment on Makino et al. and observations on spatial modeling. Anatomical Science International, 91(4), 423-424. doi: 10.1007/s12565-016-0347-9

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