Dr Guy Warman
PhD (1999), MSc (hons) (1995), BSc (1993)
As of 2 March 2020 our department has relocated to Building 507, Park Road, Grafton
I am an Associate Professor in the Department of Anaesthesiology and am Deputy Head of Department.
My research interest is in chronobiology and the interplay between anaesthesia and the circadian clock.
I direct and teach two postgraduate papers in our department:
MEDSCI718 The Pharmacology of Anaesthetics and Analgesics (semester one) and
MEDSCI738 Biological Clocks (semester two)
Together with my colleagues, Dr Cheeseman in particular, I have developed a "Chronobiology Research Group" in the Department of Anaesthesiology at the Faculty of Medical and Health Sciences.
Our basic research is focussed on the investigation of the control of circadian rhythms and the similarities between sleep and anaesthesia using invertebrate and vertebrate models. Our applied research focuses on human circadian rhythms and sleep in the hospital environment, and the influence time of day has on drug action. The findings from our basic research underpin and direct our applied work in-hospital.
I have 50 publications in international peer-reviewed journals and an h-index of 20. Our work has been supported by a number of research grants including the RSNZ's Marsden Fund, The Health Research Council of New Zealand and the Office of Naval Research (USA).
We have active and productive collaborative links internationally with Professor Randolf Menzel at the Free University of Berlin and Professor Shin Yamazaki at the University of Texas, SouthWestern Medical Center in Dallas.
We have interdisciplinary collaborations within the University of Auckland with researchers in the School of Medicine the Faculty of Medical and Health Sciences and in the Faculty of Science.
I have supervised a total of 32 post-graduate research students (PhD, masters and honours students) and 16 summer students on chronobiology topics.
For details of current research projects available in the Chronobiology Group please email me or visit:
Prior to my appointment at the University of Auckland as lecturer in 2005 I was a research fellow at Green Lane Hospital, before that I was a post-doctoral fellow at the Centre for Chronobiology University of Surrey, U.K. working with Professor Jospephine Arendt and her group.
Teaching | Current
MEDSCI 718- The Pharmacology of Anaesthetics and Analgesics (Course Director and Lecturer)
MEDSCI 738 - Biological Clocks (Course Director and Lecturer)
Quality and Safety - Lecturer and Facilitator
Janelle Chong (MSc) - main supervisor
James Kim (MSc) - co-supervisor
Pramuk Kerthisinghe (PhD) - co-supervisor
Leah Rolland (MSc) - co-supervisor
Victoria King (PhD) - advisor
Past Students (main supervisor, co-supervisor or advisor)
2017-2018 Matt Hayward (MSc) Effect of insecticides on honey bees
2016-2018 Lucia Du (PhD) Shedding light on the circadian clock regulation of innate immunity
2016-2017 Qurinio Shin (BMedSci hons) A bright light intervention for sleep and circadian disruptions following general anaesthesia
2015-2019 Alma Orst-Sebastian (PhD) The effect of anaesthesia on murine circadian rhythms
2015-2016 Joshua Paul (MSc) The effect of anaesthesia on learning and memory in honey bees
2014-2019 Dongni Li (PhD) The effect of GA on D. melanogaster
2014-2018 Jia Zhao (PhD) The development of clocks during the Drosophila lifcycle
2013-2014 Yoon Choi (MSc) The effect of melatonin on the relationship between sleep, pain perception and mood: An observational study
2013-2017 Nicola Ludin (PhD) Effects of general anaesthesia on the circadian clock
2013-2014 Tessa Popay (BSc (hons)) Characterising the effects of anaesthesia on circadian behaviour and clock gene expression in Drosophila
2012-2013 Kerry de Villiers (MSc) Sleep and circadian rhythm disruption in patients undergoing laparoscopic donor nephrectomy
2012-2013 Andrea Pillay (MSc) The underlying mechanisms causing daily variation in the action of the neuromuscular blocker rocuronium
2011-2012 Nicola Ludin (MSc) Mechanisms by which anaesthesia affects the circadian clock in the honey bee
2011-2012 Catherine Davis (MSc) The clock control of tidal movements in estuarine fishes
2008-2014 Anisoara Jardim (PhD) The effects of interventional light exposure on sleep-wake cycles in a post-operative cardiac population.
2008-2012 Eva Winnebeck (PhD) The effect of general anaesthesia on the circadian clock of the honey bee Apis mellifera
2007-2011 Amanda Potts (PhD) Dexmedetomidine in paediatric anaesthesia
2010 Rebecca Norris (BSc (hons)) Can carbon dioxide affect honeybee colony behaviour?
2010 Lisa Fendall (BSc (hons)) Investigating social synchronization of time sense in the honeybee using anaesthesia as a tool.
2009-2010 Sarah Milton (MSc) The interactions between sleep, general anaesthesia and the circadian clock in the honeybee, Apis mellifera
2007-2008 Anisoara Jardim (MSc) The effects of hospitalisation anaesthesia and surgery on sleep/wake cycles and the circadian clock
2007-2008 Yasamin Al-Tiay (MSc) Validation of the pharmacokinetic and pharmacodynamic drug models in a full scale anaesthetic simulator.
2006 Jacqueline Hannam (BSc (hons)) The incidence of residual neuromuscular blockade after relaxant general anaesthesia.
2006-2007 Amanda Potts (MSc) Pharmacokinetics and pharmacodynamics of alpha2-adrenoceptor agonists in children undergoing cardiac surgery
2003-2007 James Cheeseman (PhD) Implications of circadian biology for anaesthesia
2004-2005 Hanie Amir-Shahpari (MSc) Determinants of coagulation during cardiopulmonary bypass
199-2003 Hayley Tripp (PhD) University of Surrey, U.K.
2018 British Medical Association Book of the Year Award for "Oxford textbook of Sleep Disorders" to which I contributed a chapter
University of Auckland Teaching Excellence Award
Honorary Research Fellow ADHB
University of Surrey Scholar in Neurobiology
Deputy Head of Department, Anaesthesiology
Senior Lecturer, Department of Anaesthesiology
Chair, Post-Graduate Committe, Department of Anaesthesiology
I am Deputy Head of Department, Chair of the Depeartment Graduate Committee and Department Graduate Advisor. As such I am the contact person in the department for research students interesting in studying with us.
I am an exectuve member of the Australasian Chronobiology Society http://australasianchronobiologysociety.org/
I am a member of the Royal Soceity of New Zealand and a member of the Royal Society of Medicine.
I advise on chronobiology and sleep related issues within New Zealand and overseas, most recently to the Australian and New Zealand College of Anaesthetists (ANZCA) for their development of PS43 fatigue document and for the Royal Society of New Zealand in their "Blue Light Aoteoroa" document https://www.royalsociety.org.nz/major-issues-and-projects/blue-light-aotearoa/
I am actively engaged in public science communication with our research program recently being featured on the University's "Never Stop" campaign https://www.youtube.com/watch?v=Lf8vn1qHZlA
I am involved in the Maurice Wilkins Centre Secondary School Teachers Professional Development Days and LENS science.
Selected publications and creative works (Research Outputs)
- Poulsen, R. C., Warman, G. R., Sleigh, J., Ludin, N. M., & Cheeseman, J. F. (2018). How does general anaesthesia affect the circadian clock?. Sleep Medicine Reviews, 37, 35-44. 10.1016/j.smrv.2016.12.002
Other University of Auckland co-authors: James Cheeseman, Raewyn Poulsen, Nicola Ludin, Jamie Sleigh
- Ludin, N., Cheeseman, J., Merry, A., Millar, C., & Warman, G. (2016). The effects of the general anaesthetic isoflurane on the honey bee (Apis mellifera) circadian clock. Chronobiology International: the journal of biological and medical rhythm research, 33 (1), 128-133. 10.3109/07420528.2015.1113987
Other University of Auckland co-authors: James Cheeseman, Alan Merry, Nicola Ludin, Craig Millar
- Cheeseman, J. F., Millar, C. D., Greggers, U., Lehmann, K., Pawley, M. D. M., Gallistel, C. R., ... Menzel, R. (2014). Reply to Cheung et al.: The cognitive map hypothesis remains the best interpretation of the data in honeybee navigation. Proceedings of the National Academy of Sciences of the United States of America, 111 (42), 1-1. 10.1073/pnas.1415738111
Other University of Auckland co-authors: James Cheeseman, Matthew Pawley, Craig Millar
- Cheeseman, J. F., Millar, C. D., Greggers, U., Lehmann, K., Pawley, M. D. M., Gallistel, C. R., ... Menzel, R. (2014). Way-finding in displaced clock-shifted bees proves bees use a cognitive map. Proc Natl Acad Sci U S A, 111 (24), 8949-8954. 10.1073/pnas.1408039111
Other University of Auckland co-authors: James Cheeseman, Craig Millar, Matthew Pawley
- Paine, S.-J., Fink, J., Gander, P. H., & Warman, G. R. (2014). Identifying advanced and delayed sleep phase disorders in the general population: a national survey of New Zealand adults. Chronobiology international, 31 (5), 627-636. 10.3109/07420528.2014.885036
Other University of Auckland co-authors: Sarah-Jane Paine
- Arroll, B., Fernando, A., Falloon, K., Goodyear-Smith, F. A., Samaranayake, C., & Warman, G. (2012). Prevalence of causes of insomnia in primary care: a cross-sectional study. British Journal of General Practice, 62 (595), e99-e103. 10.3399/bjgp12X625157
Other University of Auckland co-authors: Bruce Arroll, Antonio Fernando, Karen Falloon, Felicity Goodyear-Smith
- Cheeseman, J. F., Winnebeck, E. W., Millar, C. D., Kirkland, L. S., Sleigh, J., Goodwin, M., ... Menzel, R. (2012). General anesthesia alters time perception by phase shifting the circadian clock. Proceedings of the National Academy of Sciences of USA, 109 (18), 7061-7066. 10.1073/pnas.1201734109
Other University of Auckland co-authors: James Cheeseman, Craig Millar, Jamie Sleigh, Matthew Pawley
- Ludin, N. M., Rescan, M., Cheeseman, J. F., Millar, C. D., & Warman, G. R. (2012). A Honey Bee (Apis mellifera) Light Phase Response Curve. CHRONOBIOLOGY INTERNATIONAL, 29 (4), 523-526. 10.3109/07420528.2012.667468
Other University of Auckland co-authors: Nicola Ludin, Craig Millar, James Cheeseman
- Media Contact
Primary office location
M&HS BUILDING 507 - Bldg 507
Level 1, Room 1010
28 PARK AVE