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Dr Clint Gray, Department of Paediatrics and Child Health

BSc (Hon), PhD

Senior Research Fellow, Department of Paediatrics and Child Health

Dr Clint Gray 2019 thumbnail

Dr Gray has a PhD in Translational Physiology from the University of Nottingham, UK. His PhD focused on understanding how maternal diets high in sugar (fructose) can impact fetal development and subsequent predisposition to disease in the offspring. He then did a postdoctoral fellowship at the Liggins Institute, University of Auckland examining the effects of differing maternal diets on fetal vascular development, function and predisposition to adult disease.

Dr Gray's current research projects involve looking at the effects of maternal diet on the uterine environment, blastocyst development, microRNA and gene expression. Utilising Proteomics and metabolomics he is also looking at the effects of preterm birth on liver function and the effects of maternal fructose (sugar-sweetened beverage) consumption on offspring liver development and predisposition to NAFLD.

Dr Gray firmly believes in collaborative research and currently has active collaborations with the Universities of Auckland, Victoria, Otago, Western Ontario, Newcastle, Nottingham and Cambridge. Dr Gray is currently supervising 3 PhD students and he is always interested in hearing from potential MSc and PhD students.

Contact details

If any of Dr Gray's research interests you, please don’t hesitate to contact him.

Email clint.gray@otago.ac.nz

Research interests

  • Maternal diet & pregnancy outcomes
  • Fructose & sugar-sweetened beverage intake on health
  • Blastocyst & early Fetal development
  • Carbohydrate & lipid metabolism
  • Preterm birth & later life metabolic health

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Publications

Sixtus, R. P., Pacharinsak, C., Gray, C. L., Berry, M. J., & Dyson, R. M. (2021). Differential effects of four intramuscular sedatives on cardiorespiratory stability in juvenile guinea pigs (Cavia porcellus). PLoS ONE, 16(11), e0259559. doi: 10.1371/journal.pone.0259559

Sixtus, R. P., Gray, C., Berry, M. J., & Dyson, R. M. (2021). Nitrous oxide improves cardiovascular, respiratory, and thermal stability during prolonged isoflurane anesthesia in juvenile guinea pigs. Pharmacology Research & Perspectives, 9, e00713. doi: 10.1002/prp2.713

Smith, E. V. L. R., Dyson, R. M., Berry, M. J., & Gray, C. (2020). Fructose consumption during pregnancy influences milk lipid composition and offspring lipid profiles in guinea pigs. Frontiers in Endocrinology, 11, 550. doi: 10.3389/fendo.2020.00550

Soo, J. Y., Wiese, M. D., Dyson, R. M., Gray, C. L., Clarkson, A. N., Morrison, J. L., & Berry, M. J. (2020). Methamphetamine administration increases hepatic CYP1A2 but not CYP3A activity in female guinea pigs. PLoS ONE, 15(5), e0233010. doi: 10.1371/journal.pone.0233010

Fan, J.-L., O'Donnell, T., Gray, C. L., Croft, K., Noakes, A. K., Koch, H., & Tzeng, Y.-C. (2019). Dietary nitrate supplementation enhances cerebrovascular CO2 reactivity in a sex-specific manner. Journal of Applied Physiology, 127, 760-769. doi: 10.1152/japplphysiol.01116.2018

Sixtus, R. P., Gray, C., Berry, M. J., & Dyson, R. M. (2021). Nitrous oxide improves cardiovascular, respiratory, and thermal stability during prolonged isoflurane anesthesia in juvenile guinea pigs. Pharmacology Research & Perspectives, 9, e00713. doi: 10.1002/prp2.713

Journal - Research Article

Sixtus, R. P., Pacharinsak, C., Gray, C. L., Berry, M. J., & Dyson, R. M. (2021). Differential effects of four intramuscular sedatives on cardiorespiratory stability in juvenile guinea pigs (Cavia porcellus). PLoS ONE, 16(11), e0259559. doi: 10.1371/journal.pone.0259559

Journal - Research Article

Smith, E. V. L. R., Dyson, R. M., Berry, M. J., & Gray, C. (2020). Fructose consumption during pregnancy influences milk lipid composition and offspring lipid profiles in guinea pigs. Frontiers in Endocrinology, 11, 550. doi: 10.3389/fendo.2020.00550

Journal - Research Article

Soo, J. Y., Wiese, M. D., Dyson, R. M., Gray, C. L., Clarkson, A. N., Morrison, J. L., & Berry, M. J. (2020). Methamphetamine administration increases hepatic CYP1A2 but not CYP3A activity in female guinea pigs. PLoS ONE, 15(5), e0233010. doi: 10.1371/journal.pone.0233010

Journal - Research Article

Fan, J.-L., O'Donnell, T., Gray, C. L., Croft, K., Noakes, A. K., Koch, H., & Tzeng, Y.-C. (2019). Dietary nitrate supplementation enhances cerebrovascular CO2 reactivity in a sex-specific manner. Journal of Applied Physiology, 127, 760-769. doi: 10.1152/japplphysiol.01116.2018

Journal - Research Article

Shaw, J. C., Dyson, R. M., Palliser, H. K., Gray, C., Berry, M. J., & Hirst, J. J. (2019). Neurosteroid replacement therapy using the allopregnanolone-analogue ganaxolone following preterm birth in male guinea pigs. Pediatric Research, 85, 86-96. doi: 10.1038/s41390-018-0185-7

Journal - Research Article

Morrison, J. L., Botting, K. J., Darby, J. R. T., David, A. L., Dyson, R. M., Gatford, K. L., Gray, C., … Berry, M. J. (2018). Guinea pig models for translation of the developmental origins of health and disease hypothesis into the clinic. Journal of Physiology, 596(23), 5535-5569. doi: 10.1113/JP274948

Journal - Research Article

Albert, B. B., Vickers, M. H., Gray, C., Reynolds, C. M., Segovia, S. A., Derraik, J. G. B., … Cutfield, W. S. (2017). Fish oil supplementation to rats fed high-fat diet during pregnancy prevents development of impaired insulin sensitivity in male adult offspring. Scientific Reports, 7, 5595. doi: 10.1038/s41598-017-05793-0

Journal - Research Article

Berry, M. J., Saito-Benz, M., Gray, C., Dyson, R. M., Dellabarca, P., Ebmeier, S., … Elder, D. E., & Richardson, V. F. (2017). Outcomes of 23- and 24-weeks gestation infants in Wellington, New Zealand: A single centre experience. Scientific Reports, 7, 12769. doi: 10.1038/s41598-017-12911-5

Journal - Research Article

Gray, C., McCowan, L. M., Patel, R., Taylor, R. S., & Vickers, M. H. (2017). Maternal plasma miRNAs as biomarkers during mid-pregnancy to predict later spontaneous preterm birth: A pilot study. Scientific Reports, 7, 815. doi: 10.1038/s41598-017-00713-8

Journal - Research Article

Segovia, S. A., Vickers, M. H., Gray, C., Zhang, X., & Reynolds, C. M. (2017). Conjugated linoleic acid supplementation improves maternal high fat diet-induced programming of metabolic dysfunction in adult male rat offspring. Scientific Reports, 7, 6663. doi: 10.1038/s41598-017-07108-9

Journal - Research Article

Albert, B. B., Vickers, M. H., Gray, C., Reynolds, C. M., Segovia, S. A., Derraik, J. G. B., … Cutfield, W. S. (2016). Oxidized fish oil in rat pregnancy causes high newborn mortality and increases maternal insulin resistance. American Journal of Physiology: Regulatory, Integrative & Comparative Physiology, 311(3), R497-R504. doi: 10.1152/ajpregu.00005.2016

Journal - Research Article

Gray, C., Gardiner, S. M., Elmes, M., & Gardner, D. S. (2016). Excess maternal salt or fructose intake programmes sex-specific, stress- and fructose-sensitive hypertension in the offspring. British Journal of Nutrition, 115(4), 594-604. doi: 10.1017/S0007114515004936

Journal - Research Article

Mumme, K., Gray, C., Reynolds, C. M., Vickers, M. H., Harrison, C. J., Stanley, J. L., … Sulek, K. (2016). Maternal-fetal hepatic and placental metabolome profiles are associated with reduced fetal growth in a rat model of maternal obesity. Metabolomics, 12(5), 83. doi: 10.1007/s11306-016-1014-9

Journal - Research Article

Pileggi, C. A., Hedges, C. P., Segovia, S. A., Markworth, J. F., Durainayagam, B. R., Gray, C., … Cameron-Smith, D. (2016). Maternal high fat diet alters skeletal muscle mitochondrial catalytic activity in adult male rat offspring. Frontiers in Physiology, 7, 546. doi: 10.3389/fphys.2016.00546

Journal - Research Article

Pileggi, C. A., Segovia, S. A., Markworth, J. F., Gray, C., Zhang, X. D., Milan, A. M., … Roy, N. C., … Cameron-Smith, D. (2016). Maternal conjugated linoleic acid supplementation reverses high-fat diet-induced skeletal muscle atrophy and inflammation in adult male rat offspring. American Journal of Physiology: Regulatory, Integrative & Comparative Physiology, 310(5), R432-R439. doi: 10.1152/ajpregu.00351.2015

Journal - Research Article

Berry, M., Gray, C., Wright, K., Dyson, R., & Wright, I. (2015). Premature guinea pigs: A new paradigm to investigate the late-effects of preterm birth. Journal of Developmental Origins of Health & Disease, 6(2), 143-148. doi: 10.1017/S2040174414000592

Journal - Research Article

Gray, C., Harrison, C. J., Segovia, S. A., Reynolds, C. M., & Vickers, M. H. (2015). Maternal salt and fat intake causes hypertension and sustained endothelial dysfunction in fetal, weanling and adult male resistance vessels. Scientific Reports, 5, 09753. doi: 10.1038/srep09753

Journal - Research Article

Gray, C., Vickers, M. H., Dyson, R. M., Reynolds, C. M., & Berry, M. J. (2015). Magnesium sulfate has sex-specific, dose-dependent vasodilator effects on preterm placental vessels. Biology of Sex Differences, 6, 22. doi: 10.1186/s13293-015-0040-z

Journal - Research Article

Gray, C., Vickers, M. H., Segovia, S. A., Zhang, X. D., & Reynolds, C. M. (2015). A maternal high fat diet programmes endothelial function and cardiovascular status in adult male offspring independent of body weight, which is reversed by maternal conjugated linoleic acid (CLA) supplementation. PLoS ONE, 10(2), e0115994. doi: 10.1371/journal.pone.0115994

Journal - Research Article

Li, M., Reynolds, C. M., Gray, C., & Vickers, M. H. (2015). Preweaning GH treatment normalizes body growth trajectory and reverses metabolic dysregulation in adult offspring after maternal undernutrition. Endocrinology, 156(9), 3228-3238. doi: 10.1210/en.2015-1041

Journal - Research Article

Li, M., Reynolds, C. M., Segovia, S. A., Gray, C., & Vickers, M. H. (2015). Developmental programming of nonalcoholic fatty liver disease: The effect of early life nutrition on susceptibility and disease severity in later life. BioMed Research International, 2015, 437107. doi: 10.1155/2015/437107

Journal - Research Article

Li, M., Reynolds, C. M., Sloboda, D. M., Gray, C., & Vickers, M. H. (2015). Maternal taurine supplementation attenuates maternal fructose-induced metabolic and inflammatory dysregulation and partially reverses adverse metabolic programming in offspring. Journal of Nutritional Biochemistry, 26(3), 267-276. doi: 10.1016/j.jnutbio.2014.10.015

Journal - Research Article

Reynolds, C. M., Gray, C., Li, M., Segovia, S. A., & Vickers, M. H. (2015). Early life nutrition and energy balance disorders in offspring in later life. Nutrients, 7(9), 8090-8111. doi: 10.3390/nu7095384

Journal - Research Article

Reynolds, C. M., Segovia, S. A., Zhang, X. D., Gray, C., & Vickers, M. H. (2015). Conjugated linoleic acid supplementation during pregnancy and lactation reduces maternal high-fat-diet-induced programming of early-onset puberty and hyperlipidemia in female rat offspring. Biology of Reproduction, 92(2), 40. doi: 10.1095/biolreprod.114.125047

Journal - Research Article

Reynolds, C. M., Segovia, S. A., Zhang, X. D., Gray, C., & Vickers, M. H. (2015). Maternal high-fat diet-induced programing of gut taste receptor and inflammatory gene expression in rat offspring is ameliorated by CLA supplementation. Physiological Reports, 3(10), e12588. doi: 10.14814/phy2.12588

Journal - Research Article

Reynolds, C. M., Vickers, M. H., Harrison, C. J., Segovia, S. A., & Gray, C. (2015). Maternal high fat and/or salt consumption induces sex‐specific inflammatory and nutrient transport in the rat placenta. Physiological Reports, 3(5), e12399. doi: 10.14814/phy2.12399

Journal - Research Article

Segovia, S. A., Vickers, M. H., Zhang, X. D., Gray, C., & Reynolds, C. M. (2015). Maternal supplementation with conjugated linoleic acid in the setting of diet-induced obesity normalises the inflammatory phenotype in mothers and reverses metabolic dysfunction and impaired insulin sensitivity in offspring. Journal of Nutritional Biochemistry, 26(12), 1448-1457. doi: 10.1016/j.jnutbio.2015.07.013

Journal - Research Article

Gray, C., Li, M., Patel, R., Reynolds, C. M., & Vickers, M. H. (2014). Let-7 miRNA profiles are associated with the reversal of left ventricular hypertrophy and hypertension in adult male offspring from mothers undernourished during pregnancy after preweaning growth hormone treatment. Endocrinology, 155(12), 4808-4817. doi: 10.1210/en.2014-1567

Journal - Research Article

Reynolds, C. M., Li, M., Gray, C., & Vickers, M. H. (2014). Early-life growth hormone treatment to offspring of undernourished mothers alters metabolic parameters in primary adipocytes in adulthood. Growth Factors, 32(1), 34-40. doi: 10.3109/08977194.2013.870169

Journal - Research Article

Reynolds, C. M., Vickers, M. H., Harrison, C. J., Segovia, S. A., & Gray, C. (2014). High fat and/or high salt intake during pregnancy alters maternal meta-inflammation and offspring growth and metabolic profiles. Physiological Reports, 2(8), e12110. doi: 10.14814/phy2.12110

Journal - Research Article

Segovia, S. A., Vickers, M. H., Gray, C., & Reynolds, C. M. (2014). Maternal obesity, inflammation, and developmental programming. BioMed Research International, 2014, 418975. doi: 10.1155/2014/418975

Journal - Research Article

Gray, C., Al-Dujaili, E. A., Sparrow, A. J., Gardiner, S. M., Craigon, J., Welham, S. J. M., & Gardner, D. S. (2013). Excess maternal salt intake produces sex-specific hypertension in offspring: Putative roles for kidney and gastrointestinal sodium handling. PLoS ONE, 8(8), e72682. doi: 10.1371/journal.pone.0072682

Journal - Research Article

Gray, C., Li, M., Reynolds, C. M., & Vickers, M. H. (2013). Pre-weaning growth hormone treatment reverses hypertension and endothelial dysfunction in adult male offspring of mothers undernourished during pregnancy. PLoS ONE, 8(1), e53505. doi: 10.1371/journal.pone.0053505

Journal - Research Article

Gray, C., Long, S., Green, C., Gardiner, S. M., Craigon, J., & Gardner, D. S. (2013). Maternal fructose and/or salt intake and reproductive outcome in the rat: Effects on growth, fertility, sex ratio, and birth order. Biology of Reproduction, 89(3), 51. doi: 10.1095/biolreprod.113.109595

Journal - Research Article

Li, M., Reynolds, C. M., Sloboda, D. M., Gray, C., & Vickers, M. H. (2013). Effects of taurine supplementation on hepatic markers of inflammation and lipid metabolism in mothers and offspring in the setting of maternal obesity. PLoS ONE, 8(10), e76961. doi: 10.1371/journal.pone.0076961

Journal - Research Article

Reynolds, C. M., Li, M., Gray, C., & Vickers, M. H. (2013). Pre-weaning growth hormone treatment ameliorates bone marrow macrophage inflammation in adult male rat offspring following maternal undernutrition. PLoS ONE, 8(7), e68262. doi: 10.1371/journal.pone.0068262

Journal - Research Article

Reynolds, C. M., Li, M., Gray, C., & Vickers, M. H. (2013). Preweaning growth hormone treatment ameliorates adipose tissue insulin resistance and inflammation in adult male offspring following maternal undernutrition. Endocrinology, 154(8), 2676-2686. doi: 10.1210/en.2013-1146

Journal - Research Article

Rhodes, P., Craigon, J., Gray, C., Rhind, S. M., Loughna, P. T., & Gardner, D. S. (2009). Adult-onset obesity reveals prenatal programming of glucose-insulin sensitivity in male sheep nutrient restricted during late gestation. PLoS ONE, 4(10), e7393. doi: 10.1371/journal.pone.0007393

Journal - Research Article

Saito-Benz, M., Gray, C., Tzeng, Y.-C., Atkinson, G., & Berry, M. J. (2019). Cerebral oxygenation and cardiorespiratory stability following liberal transfusion in preterm neonates [Brief report]. Acta Paediatrica, 108, 559-561. doi: 10.1111/apa.14631

Journal - Research Other

Morrison, J. L., Berry, M. J., Botting, K. J., Darby, J. R. T., Frasch, M. G., Gatford, K. L., … Gray, C. L., … Tellam, R. L. (2018). Improving pregnancy outcomes in humans through studies in sheep. American Journal of Physiology: Regulatory, Integrative & Comparative Physiology, 315, R1123-R1153. doi: 10.1152/ajpregu.00391.2017

Journal - Research Other

Saito Benz, M., Dyson, R., Gray, C., Gately, C., Jackson, P., & Berry, M. (2017). Blood transfusion for anaemia of prematurity: Current practice in Australia and New Zealand neonatal units. Journal of Paediatrics & Child Health, 53(Suppl. 2), (pp. 86-87). doi: 10.1111/jpc.13494_255

Conference Contribution - Published proceedings: Abstract

Segovia, S. A., Vickers, M. H., Zhang, X. D., Gray, C., & Reynolds, C. M. (2016). Conjugated linoleic acid improves metabolic and inflammatory profiles in offspring exposed to maternal high fat diet. Reproductive Sciences, 23(Suppl. 1), (pp. 95A). [Abstract]

Conference Contribution - Published proceedings: Abstract

Soo, J., Berry, M., Dyson, R., Gray, C., & Morrison, J. L. (2016). Sex specific effect of preterm birth on mRNA expression of drug transporters in guinea pig liver. Proceedings of the Australian Physiological Society (AuPS) and Australian Society for Biophysics (ASB) Conference. Retrieved from http://aups.org.au/

Conference Contribution - Published proceedings: Abstract

Albert, B., Vickers, M. H., Gray, C., Reynolds, C., Derraik, J., Cameron-Smith, D., … Cutfield, W. (2015). Supplementation with oxidised fish oil in pregnancy markedly increases neonatal mortality in male rat offspring. International Journal of Pediatric Endocrinology, 2015(Suppl. 1 ), O41. doi: 10.1186/1687-9856-2015-S1-O41

Conference Contribution - Published proceedings: Abstract

Li, M., Gray, C., Reynolds, C., Segovia, S., Patel, R., & Vickers, M. (2015). Pre-weaning growth hormone treatment reverses metabolic and cardiovascular disorders in offspring arising as a consequence of maternal undernutrition. Endocrine Reviews, 36(2, Suppl.), THR-445. Retrieved from https://www.endocrine.org/

Conference Contribution - Published proceedings: Abstract

Mumme, K. D., Gray, C., Reynolds, C., Vickers, M. H., Harrison, C., Stanley, J. L., … Sulek, K. (2015). Increased maternal fat and/or salt intake alters the placental metabolome. Reproductive Sciences, 22(Suppl. 1), (pp. 374A). [Abstract]

Conference Contribution - Published proceedings: Abstract

Segovia, S. A., Vickers, M. H., Zhang, X. D., Gray, C., & Reynolds, C. M. (2015). Conjugated linoleic acid supplementation ameliorates maternal obesity-induced programming of metabolic dysfunction in male rat offspring. Reproductive Sciences, 22(Suppl. 1), (pp. 98A). [Abstract]

Conference Contribution - Published proceedings: Abstract

Gray, C., Reynolds, C. M., Harrison, C., & Vickers, M. H. (2014). Maternal salt and fat intake impairs uterine artery vasodilation and causes endothelial dysfunction in the fetal aorta, weanling resistance vessels and hypertension in adult offspring. Reproductive Sciences, 21(3, Suppl.), (pp. 165A). [Abstract]

Conference Contribution - Published proceedings: Abstract

Reynolds, C. M., Gray, C., Harrison, C., & Vickers, M. H. (2014). Maternal high-fat and/or salt consumption induces sex-specific inflammatory and angiogenic changes in the placenta. Reproductive Sciences, 21(3, Suppl.), (pp. 384A). [Abstract]

Conference Contribution - Published proceedings: Abstract

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