Dr Camilla Hoyos

MPH (Hons), PhD
NHMRC-ARC Dementia Research Development Fellow, Healthy Brain Ageing Program, School of Psychology. Charles Perkins Centre, Brain and Mind Centre, Woolcock Institute of Medical Research

M02F - 88 Mallett Street - Building F
The University of Sydney

Telephone +61 2 9114 0409

Biographical details

Dr Camilla Hoyos is a NHMRC-ARC Dementia Research Fellow in the School of Psychology, Charles Perkins Centre and Brain and Mind Centre at the University of Sydney. She is also an affiliate researcher in the Centre for Sleep and Chronobiology at the Woolcock Institute of Medical Research. Dr Hoyos is passionate about generating new knowledge on how sleep disorders, insufficient sleep and poorly timed sleep impact on health. Her work is determining whether reversing sleep problems with various therapies leads to reduced risk and impact of diabetes, heart disease and dementia. Dr Hoyos has worked in clinical research for nearly 15 years beginning as a clinical trial co-ordinator, and later clinical trial manger, at the Woolcock Institute of Medical Research, from 2002-2009. She then completed her PhD in 2012 at the University of Sydney and the Woolcock Institute of Medical Research focusing on understanding whether treating sleep apnea reduced body fat and insulin resistance, both important risk factors for the development of diabetes.

Her current research focusses on further understanding the role disturbed sleep and metabolic dysfunction in cognitive decline, which can include loss of memory and difficulty performing everyday tasks. In order to slow cognitive decline and potentially prevent the onset of dementia, her research is investigating new interventions which target disturbed sleep before cognitive decline begins.

Research interests

Randomised controlled trials, obstructive sleep apnea, sleep-wake disturbance, sleep disorders, cardio-metabolic function, metabolic syndrome, obesity, healthy ageing, cognitive decline.

Teaching and supervision

Co-supervisor, 1 current PhD student, Sydney Medical School, 2016-

Co-supervisor, 1 completed PhD student, Sydney Medical School, 2012-2015

Primary Supervisor, Summer Research Student, Sydney Medical School, 2014

Co-supervisor, Summer Research Student, Sydney Medical School, 2016

Current research students

Project title Research student
Does Intranasal Oxytocin Enhance Emotions in Dementia? Johannes Carapiet Michaelian MICHAELIAN

Associations

Member of the American Thoracic Society SRN Program Committe 2015

Member of the Australasian Sleep Association Research Committee 2014-

Member of the Woolcock Institute of Medical Research Next Generation Committee 2012-

Professional member of Australasian Sleep Association, American Academy of Sleep Medicine, Sleep Research Society, Australian and New Zealand Obesity Society, Endocrine Society of Australia, American Thoracic Society

Peer-reviewer for funding agencies (eg NHMRC, Diabetes Australia) and specialist medical journals including Thorax, European Respiratory Journal, SLEEP, Journal of Sleep Research, Sleep Medicine, International Journal of Obesity and Clinical Endocrinology

Awards and honours

Thoracic Society of Australia and New Zealand NSW Branch Meeting Best Oral Presenation 2013 & 2014

American Academy of Sleep Medicine Young Investigator Award Winner 2013

American Academy of Sleep Medicine Young Investigator Honorable Mention Award 2012

Australiasian Sleep Association New Investigator Award Finalist 2011

World Sleep Federation Congress Young Investigator Award Finalist 2011

Keywords

Obesity & overweight; Endocrinology; Cardiovascular diseases; Sleep disorders

Selected grants

2017

  • Treating sleep apnoea after weight loss to maintain cardio-metabolic health in the obese with pre-diabetes - A Randomised Controlled Trial; Phillips C, Twigg S, Grunstein R, Markovic T, Hoyos C, Yee B; Diabetes Australia/Research Grant.
  • Brain oxidative stress and cognitive function in older adults with diabetes and pre-diabetes who are �at risk� for dementia; Hoyos C, Naismith S, Colagiuri S, Duffy S; Diabetes Australia/Research Grant.

2016

  • Sleep-wake disturbances and cardio-metabolic dysfunction in at risk dementia: a novel pathway in neurocognitive decline; Hoyos C; National Health and Medical Research Council (NHMRC)/NHMRC-ARC Dementia Research Development Fellowships.

2015

  • Chrono-NeuroSleep: studing circadian clocks in NeuroSleep target populations; Grunstein R, Naismith S, Comas Soberats M, Hermans D, Wong K, Lee A, Lewis S, Glozier N, Phillips C, Hoyos C, Gordon C, Miller C, Lambert T, Oliver B; Neurosleep Centre of Research Excellence/Postgraduate Scholarships Grant.

Selected publications

Download citations: PDF RTF Endnote

Journals

  • Hoyos, C., Marshall, N., Patel, S., Grunstein, R., Phillips, C. (2017). Does Continuous Positive Airway Pressure Have the "Power" to Improve Glycemic Control in Patients with Type II Diabetes and Obstructive Sleep Apnea? American Journal of Respiratory and Critical Care Medicine, 195(3), 406-407. [More Information]
  • Hoyos, C., Marshall, N., Patel, S., Grunstein, R., Phillips, C. (2017). Does CPAP have the "power" to improve glycemic control in type II diabetes patients with OSA? American Journal of Respiratory and Critical Care Medicine, 195(3), 406-407.
  • Cayanan, E., Marshall, N., Hoyos, C., Phillips, C., Serinel, Y., Wong, K., Yee, B., Grunstein, R. (2017). Maintenance diets following rapid weight loss in obstructive sleep apnea: a pilot 1-year clinical trial. Journal of Sleep Research. [More Information]
  • Hoyos, C., Drager, L., Patel, S. (2017). OSA and cardiometabolic risk: What's the bottom line? Respirology, 22(3), 420-429. [More Information]
  • Hoyos, C., Drager, L., Patel, S. (2017). OSA and cardiometabolic risk: What�s the bottom line? Respirology, 22(3), 420-429. [More Information]
  • Chang, Y., Yee, B., Hoyos, C., Wong, K., Sullivan, D., Grunstein, R., Phillips, C. (2017). The effects of continuous positive airway pressure therapy on Troponin-T and N-terminal pro B-type natriuretic peptide in patients with obstructive sleep apnoea: a randomised controlled trial. Sleep Medicine, 39, 8-13. [More Information]
  • Phillips, C., Hoyos, C., Yee, B., Grunstein, R. (2016). CrossTalk opposing view: Sleep apnoea causes metabolic syndrome. American Journal of Physiology, 594(17), 4691-4694. [More Information]
  • Fuller, J., Wong, K., Hoyos, C., Krass, I., Saini, B. (2016). Dispensing good sleep health behaviours not pills - a cluster-randomized controlled trial to test the feasibility and efficacy of pharmacist-provided brief behavioural treatment for insomnia. Journal of Sleep Research, 25(1), 104-115. [More Information]
  • Melehan, K., Hoyos, C., Yee, B., Wong, K., Buchanan, P., Grunstein, R., Liu, P. (2016). Increased sexual desire with exogenous testosterone administration in men with obstructive sleep apnea: A randomized placebo-controlled study. Andrology, 4(1), 55-61. [More Information]
  • Phillips, C., Hoyos, C., Yee, B., Grunstein, R. (2016). Rebuttal from Craig L. Phillips, Camilla M. Hoyos, Brendon J. Yee and Ronald R. Grunstein. Journal of Physiology, 594(17), 4697-4698. [More Information]
  • Hoyos, C., Yee, B., Phillips, C., Machan, E., Grunstein, R., Liu, P. (2015). Body compositional and cardiometabolic effects of testosterone therapy in obese men with severe obstructive sleep apnea: a randomized placebo-controlled trial. European Journal of Endocrinology, 173(5), x3. [More Information]
  • Hoyos, C., Melehan, K., Liu, P., Grunstein, R., Phillips, C. (2015). Does obstructive sleep apnea cause endothelial dysfunction? A critical review of the literature. Sleep Medicine Reviews, 20, 15-26. [More Information]
  • Sivam, S., Witting, P., Hoyos, C., Maw, A., Yee, B., Grunstein, R., Phillips, C. (2015). Effects of 8 weeks of CPAP on lipid-based oxidative markers in obstructive sleep apnea: a randomized trial. Journal of Sleep Research, 24(3), 339-345. [More Information]
  • Iftikhar, I., Hoyos, C., Phillips, C., Magalang, U. (2015). Meta-analyses of the association of sleep apnea with insulin resistance, and the effects of CPAP on HOMA-IR, adiponectin, and visceral adipose fat. The Journal of Clinical Sleep Medicine, 11(4), 475-485. [More Information]
  • Killick, R., Hoyos, C., Melehan, K., Dungan, G., Poh, J., Liu, P. (2015). Metabolic and hormonal effects of 'catch-up' sleep in men with chronic, repetitive, lifestyle-driven sleep restriction. Clinical Endocrinology, 83(4), 498-507. [More Information]
  • Hoyos, C., Glozier, N., Marshall, N. (2015). Recent Evidence on Worldwide Trends on Sleep Duration. Current Sleep Medicine Reports, 1(4), 195-204. [More Information]
  • Hoyos, C., Melehan, K., Phillips, C., Grunstein, R., Liu, P. (2015). To ED or not to ED - Is erectile dysfunction in obstructive sleep apnea related to endothelial dysfunction? Sleep Medicine Reviews, 20(C), 5-14. [More Information]
  • Hoyos, C., Yee, B., Wong, K., Grunstein, R., Phillips, C. (2015). Treatment of Sleep Apnea With CPAP Lowers Central and Peripheral Blood Pressure Independent of the Time-of-Day: A Randomized Controlled Study. American Journal of Hypertension, 28(10), 1222-1228. [More Information]
  • Hoyos, C., Killick, R., Keenan, D., Baxter, R., Veldhuis, J., Liu, P. (2014). Continuous Positive Airway Pressure Increases Pulsatile Growth Hormone Secretion and Circulating Insulin-like Growth Factor-1 in a Time-Dependent Manner in Men With Obstructive Sleep Apnea: A Randomized Sham-Controlled Study. Sleep, 37(4), 733-741. [More Information]
  • Hoyos, C., Phillips, C., Grunstein, R. (2014). From Couch Potato to Gym Junkie-CPAP May Not Be the Answer. The Journal of Clinical Sleep Medicine, 10(5), 473-474. [More Information]
  • Hoyos, C., Sullivan, D., Liu, P. (2013). Effect of CPAP on the metabolic syndrome: a randomised sham-controlled study. Thorax, 68(6), 588-589. [More Information]
  • Simpson, P., Hoyos, C., Celermajer, D., Liu, P., Ng, M. (2013). Effects of continuous positive airway pressure on endothelial function and circulating progenitor cells in obstructive sleep apnoea: A randomised sham-controlled study. International Journal of Cardiology, 168(3), 2042-2048. [More Information]
  • Killick, R., Wang, D., Hoyos, C., Yee, B., Grunstein, R., Liu, P. (2013). The effects of testosterone on ventilatory responses in men with obstructive sleep apnoea: a randomised, placebo-controlled trial. Journal of Sleep Research, 22(3), 331-336. [More Information]
  • Hoyos, C., Yee, B., Phillips, C., Machan, E., Grunstein, R., Liu, P. (2012). Body compositional and cardiometabolic effects of testosterone therapy in obese men with severe obstructive sleep apnea: a randomised placebo-controlled trial. European Journal of Endocrinology, 167(4), 531-541. [More Information]
  • Hoyos, C., Killick, R., Yee, B., Phillips, C., Grunstein, R., Liu, P. (2012). Cardiometabolic changes after continuous positive airway pressure for obstructive sleep apnoea: a randomised sham-controlled study. Thorax, 67(12), 1081-1089. [More Information]
  • Dungan, G., Marshall, N., Hoyos, C., Yee, B., Grunstein, R. (2011). A Randomized Crossover Trial of the Effect of a Novel Method of Pressure Control (SensAwake) in Automatic Continuous Positive Airway Pressure Therapy to Treat Sleep Disordered Breathing. The Journal of Clinical Sleep Medicine, 7(3), 261-267. [More Information]

2017

  • Hoyos, C., Marshall, N., Patel, S., Grunstein, R., Phillips, C. (2017). Does Continuous Positive Airway Pressure Have the "Power" to Improve Glycemic Control in Patients with Type II Diabetes and Obstructive Sleep Apnea? American Journal of Respiratory and Critical Care Medicine, 195(3), 406-407. [More Information]
  • Hoyos, C., Marshall, N., Patel, S., Grunstein, R., Phillips, C. (2017). Does CPAP have the "power" to improve glycemic control in type II diabetes patients with OSA? American Journal of Respiratory and Critical Care Medicine, 195(3), 406-407.
  • Cayanan, E., Marshall, N., Hoyos, C., Phillips, C., Serinel, Y., Wong, K., Yee, B., Grunstein, R. (2017). Maintenance diets following rapid weight loss in obstructive sleep apnea: a pilot 1-year clinical trial. Journal of Sleep Research. [More Information]
  • Hoyos, C., Drager, L., Patel, S. (2017). OSA and cardiometabolic risk: What's the bottom line? Respirology, 22(3), 420-429. [More Information]
  • Hoyos, C., Drager, L., Patel, S. (2017). OSA and cardiometabolic risk: What�s the bottom line? Respirology, 22(3), 420-429. [More Information]
  • Chang, Y., Yee, B., Hoyos, C., Wong, K., Sullivan, D., Grunstein, R., Phillips, C. (2017). The effects of continuous positive airway pressure therapy on Troponin-T and N-terminal pro B-type natriuretic peptide in patients with obstructive sleep apnoea: a randomised controlled trial. Sleep Medicine, 39, 8-13. [More Information]

2016

  • Phillips, C., Hoyos, C., Yee, B., Grunstein, R. (2016). CrossTalk opposing view: Sleep apnoea causes metabolic syndrome. American Journal of Physiology, 594(17), 4691-4694. [More Information]
  • Fuller, J., Wong, K., Hoyos, C., Krass, I., Saini, B. (2016). Dispensing good sleep health behaviours not pills - a cluster-randomized controlled trial to test the feasibility and efficacy of pharmacist-provided brief behavioural treatment for insomnia. Journal of Sleep Research, 25(1), 104-115. [More Information]
  • Melehan, K., Hoyos, C., Yee, B., Wong, K., Buchanan, P., Grunstein, R., Liu, P. (2016). Increased sexual desire with exogenous testosterone administration in men with obstructive sleep apnea: A randomized placebo-controlled study. Andrology, 4(1), 55-61. [More Information]
  • Phillips, C., Hoyos, C., Yee, B., Grunstein, R. (2016). Rebuttal from Craig L. Phillips, Camilla M. Hoyos, Brendon J. Yee and Ronald R. Grunstein. Journal of Physiology, 594(17), 4697-4698. [More Information]

2015

  • Hoyos, C., Yee, B., Phillips, C., Machan, E., Grunstein, R., Liu, P. (2015). Body compositional and cardiometabolic effects of testosterone therapy in obese men with severe obstructive sleep apnea: a randomized placebo-controlled trial. European Journal of Endocrinology, 173(5), x3. [More Information]
  • Hoyos, C., Melehan, K., Liu, P., Grunstein, R., Phillips, C. (2015). Does obstructive sleep apnea cause endothelial dysfunction? A critical review of the literature. Sleep Medicine Reviews, 20, 15-26. [More Information]
  • Sivam, S., Witting, P., Hoyos, C., Maw, A., Yee, B., Grunstein, R., Phillips, C. (2015). Effects of 8 weeks of CPAP on lipid-based oxidative markers in obstructive sleep apnea: a randomized trial. Journal of Sleep Research, 24(3), 339-345. [More Information]
  • Iftikhar, I., Hoyos, C., Phillips, C., Magalang, U. (2015). Meta-analyses of the association of sleep apnea with insulin resistance, and the effects of CPAP on HOMA-IR, adiponectin, and visceral adipose fat. The Journal of Clinical Sleep Medicine, 11(4), 475-485. [More Information]
  • Killick, R., Hoyos, C., Melehan, K., Dungan, G., Poh, J., Liu, P. (2015). Metabolic and hormonal effects of 'catch-up' sleep in men with chronic, repetitive, lifestyle-driven sleep restriction. Clinical Endocrinology, 83(4), 498-507. [More Information]
  • Hoyos, C., Glozier, N., Marshall, N. (2015). Recent Evidence on Worldwide Trends on Sleep Duration. Current Sleep Medicine Reports, 1(4), 195-204. [More Information]
  • Hoyos, C., Melehan, K., Phillips, C., Grunstein, R., Liu, P. (2015). To ED or not to ED - Is erectile dysfunction in obstructive sleep apnea related to endothelial dysfunction? Sleep Medicine Reviews, 20(C), 5-14. [More Information]
  • Hoyos, C., Yee, B., Wong, K., Grunstein, R., Phillips, C. (2015). Treatment of Sleep Apnea With CPAP Lowers Central and Peripheral Blood Pressure Independent of the Time-of-Day: A Randomized Controlled Study. American Journal of Hypertension, 28(10), 1222-1228. [More Information]

2014

  • Hoyos, C., Killick, R., Keenan, D., Baxter, R., Veldhuis, J., Liu, P. (2014). Continuous Positive Airway Pressure Increases Pulsatile Growth Hormone Secretion and Circulating Insulin-like Growth Factor-1 in a Time-Dependent Manner in Men With Obstructive Sleep Apnea: A Randomized Sham-Controlled Study. Sleep, 37(4), 733-741. [More Information]
  • Hoyos, C., Phillips, C., Grunstein, R. (2014). From Couch Potato to Gym Junkie-CPAP May Not Be the Answer. The Journal of Clinical Sleep Medicine, 10(5), 473-474. [More Information]

2013

  • Hoyos, C., Sullivan, D., Liu, P. (2013). Effect of CPAP on the metabolic syndrome: a randomised sham-controlled study. Thorax, 68(6), 588-589. [More Information]
  • Simpson, P., Hoyos, C., Celermajer, D., Liu, P., Ng, M. (2013). Effects of continuous positive airway pressure on endothelial function and circulating progenitor cells in obstructive sleep apnoea: A randomised sham-controlled study. International Journal of Cardiology, 168(3), 2042-2048. [More Information]
  • Killick, R., Wang, D., Hoyos, C., Yee, B., Grunstein, R., Liu, P. (2013). The effects of testosterone on ventilatory responses in men with obstructive sleep apnoea: a randomised, placebo-controlled trial. Journal of Sleep Research, 22(3), 331-336. [More Information]

2012

  • Hoyos, C., Yee, B., Phillips, C., Machan, E., Grunstein, R., Liu, P. (2012). Body compositional and cardiometabolic effects of testosterone therapy in obese men with severe obstructive sleep apnea: a randomised placebo-controlled trial. European Journal of Endocrinology, 167(4), 531-541. [More Information]
  • Hoyos, C., Killick, R., Yee, B., Phillips, C., Grunstein, R., Liu, P. (2012). Cardiometabolic changes after continuous positive airway pressure for obstructive sleep apnoea: a randomised sham-controlled study. Thorax, 67(12), 1081-1089. [More Information]

2011

  • Dungan, G., Marshall, N., Hoyos, C., Yee, B., Grunstein, R. (2011). A Randomized Crossover Trial of the Effect of a Novel Method of Pressure Control (SensAwake) in Automatic Continuous Positive Airway Pressure Therapy to Treat Sleep Disordered Breathing. The Journal of Clinical Sleep Medicine, 7(3), 261-267. [More Information]

To update your profile click here. For support on your academic profile contact .