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Christopher P. O'Donnell, PhD

Academic Title:


Primary Appointment:


Secondary Appointment(s):


Administrative Title:

Vice Dean, Research Development & Operations


BRB, 14-032B

Phone (Primary):




Education and Training

  • Otago University, B.Ph.Ed., Physical Education, 1982
  • Otago University, B.S., Mathematics, 1982
  • Otago University, B.S., Physiology (Honors I), 1983
  • Cambridge University, Ph.D., Physiology, 1988
  • University of California, San Francisco, Fellowship, Physiology, 1991


Dr. O’Donnell joined Dean Gladwin on September 1, 2022, as a Vice Dean. He will lead the research mission and serve as an advisor to the Dean in matters of research strategy and operations. His responsibilities will include overseeing the school’s broad research functions, building new scientific partnerships within the University of Maryland System, and engaging in collaborative opportunities with industry and federal agencies. In the area of operations, Dr. O’Donnell will partner with the Office of Business Affairs within the Dean’s Office to review current financial strategies and institute long-term planning initiatives.

Dr. O’Donnell, originally for New Zealand, is a Professor of Medicine who trained at Cambridge University, England, before conducting his postdoctoral studies at the University of California, San Francisco. He was appointed to faculty at Johns Hopkins Medical School where he served for 13 years before being recruited to the University of Pittsburgh in 2004.

In addition to his research, Dr. O’Donnell had a significant leadership role in the Department of Medicine (as Executive Vice Chair to Mark Gladwin), and also at the institutional level as an Associate Vice Chancellor for the Health Sciences. He was appointed the Chief Operating Officer for the Pitt COVID-19 Medical Response Office and helped shepherd the University through the unchartered waters of the pandemic before leaving for his new role at the University of Maryland School of Medicine.

Research/Clinical Keywords

physiology, obstructive sleep apnea, Sleep apnea, Cardiovascular disease, cerebrovascular disease,

Highlighted Publications

O'Donnell C, Smith DA, O'Donnell TV, Stacy RJ. Physical fitness of New Zealand army personnel; correlation between field tests and direct laboratory assessments--anaerobic threshold and maximum O2 uptake. N Z Med J. 1984 Jul 25;97(760):476-9. PMID: 6591000.

Bower EA, O'Donnell CP. Mean circulatory filling pressure during splanchnic nerve stimulation and whole-body hypoxia in the anaesthetized cat. J Physiol. 1991 Jan;432:543-56. PMID: 1886068.

O'Donnell CP, Scheuer DA, Keil LC, Thrasher TN. Cardiac nerve blockade by infusion of procaine into the pericardial space of conscious dogs. Am J Physiol. 1991 Jun;260(6 Pt 2):R1176-82. PMID: 1647701.

O'Donnell CP, Keil LC, Thrasher TN. Vasopressin responses to unloading arterial baroreceptors during cardiac nerve blockade in conscious dogs. Am J Physiol. 1992 Jan;262(1 Pt 2):R51-60. PMID: 1733340.

O'Donnell CP, Bower EA. Heart rate changes evoked by hypoxia in the anaesthetized, artificially ventilated cat. Exp Physiol. 1992 Mar;77(2):271-83. PMID: 1349815.

O'Donnell CP, Keil LC, Thrasher TN. Vasopressin, renin, and cortisol responses to hemorrhage during acute blockade of cardiac nerves in conscious dogs. Am J Physiol. 1993 Jul;265(1 Pt 2):R220-9. PMID: 8342691.

O'Donnell CP, Thompson CJ, Keil LC, Thrasher TN. Renin and vasopressin responses to graded reductions in atrial pressure in conscious dogs. Am J Physiol. 1994 Mar;266(3 Pt 2):R714-21. PMID: 8160864.

Andreoni KA, O'Donnell CP, Burdick JF, Robotham JL. Hepatic and renal blood flow responses to a clinical dose of intravenous cyclosporine in the pig. Immunopharmacology. 1994 Sep-Oct;28(2):87-94. PMID: 8002291.

O'Donnell CP, King ED, Schwartz AR, Smith PL, Robotham JL. Effect of sleep deprivation on responses to airway obstruction in the sleeping dog. J Appl Physiol (1985). 1994 Oct;77(4):1811-8. PMID: 7836204.

O'Donnell CP, King ED, Schwartz AR, Robotham JL, Smith PL. Relationship between blood pressure and airway obstruction during sleep in the dog. J Appl Physiol (1985). 1994 Oct;77(4):1819-28. PMID: 7836205

Additional Publication Citations

Ayuse T, Brienza N, O'Donnell CP, Robotham JL. Pressure-flow analysis of portal vein and hepatic artery interactions in porcine liver. Am J Physiol. 1994 Oct;267(4 Pt 2):H1233-42. PMID: 7943366.

Ayuse T, Brienza N, Revelly JP, O'Donnell CP, Boitnott JK, Robotham JL. Alternations in liver hemodynamics in an intact porcine model of endotoxin shock. Am J Physiol. 1995 Mar;268(3 Pt 2):H1106-14. PMID: 7900864.

Brienza N, Ayuse T, Revelly JP, O'Donnell CP, Robotham JL. Effects of endotoxin on isolated porcine liver: pressure-flow analysis. J Appl Physiol (1985). 1995 Mar;78(3):784-92. PMID: 7775319.

Schwartz AR, Rowley JA, O'Donnell C, King ED, Mayor A, Smith PL. Effect of hypertension on upper airway function and sleep apnoea. J Sleep Res. 1995 Jun;4(S1):83-88. PMID: 10607180.

O'Donnell CP, King ED, Schwartz AR, Smith PL, Robotham JL. A dog model to investigate the relationship between obstructive sleep apnoea and blood pressure regulation. J Sleep Res. 1995 Jun;4(S1):89-92. PMID: 10607181.

Brienza N, Ayuse T, O'Donnell CP, Permutt S, Robotham JL. Regional control of venous return: liver blood flow. Am J Respir Crit Care Med. 1995 Aug;152(2):511-8. PMID: 7633700.

Beloucif S, Beloucif S, Brienza N, Andreoni K, Ayuse T, Takata M, O'Donnell CP, Robotham JL. Distinct behavior of portal venous and arterial vascular waterfalls in porcine liver. J Crit Care. 1995 Sep;10(3):104-14. PMID: 7496447.

O'Donnell CP, Ayuse T, King ED, Schwartz AR, Smith PL, Robotham JL. Airway obstruction during sleep increases blood pressure without arousal. J Appl Physiol (1985). 1996 Mar;80(3):773-81. PMID: 8964736.

O'Donnell CP, Schwartz AR, Smith PL, Robotham JL, Fitzgerald RS, Shirahata M. Reflex stimulation of renal sympathetic nerve activity and blood pressure in response to apnea. Am J Respir Crit Care Med. 1996 Dec;154(6 Pt 1):1763-70. PMID: 8970368.

Yamamoto S, Burman HP, O'Donnell CP, Cahill PA, Robotham JL. Endothelin causes portal and pulmonary hypertension in porcine endotoxemic shock. Am J Physiol. 1997 Mar;272(3 Pt 2):H1239-49. PMID: 9087598.

Schneider H, Schaub CD, Andreoni KA, Schwartz AR, Smith PL, Robotham JL, O'Donnell CP. Systemic and pulmonary hemodynamic responses to normal and obstructed breathing during sleep. J Appl Physiol (1985). 1997 Nov;83(5):1671-80. PMID: 9375338.

Schaub CD, Tankersley C, Schwartz AR, Smith PL, Robotham JL, O'Donnell CP. Effect of sleep/wake state on arterial blood pressure in genetically identical mice. J Appl Physiol (1985). 1998 Jul;85(1):366-71. PMID: 9655797.

Schwartz AR, O'Donnell CP, Baron J, Schubert N, Alam D, Samadi SD, Smith PL. The hypotonic upper airway in obstructive sleep apnea: role of structures and neuromuscular activity. Am J Respir Crit Care Med. 1998 Apr;157(4 Pt 1):1051-7. PMID: 9563718.

Tankersley CG, O'Donnell C, Daood MJ, Watchko JF, Mitzner W, Schwartz A, Smith P. Leptin attenuates respiratory complications associated with the obese phenotype. J Appl Physiol (1985). 1998 Dec;85(6):2261-9. PMID: 9843551.

O’Donnell CP, Schaub CD, Haines AS, Berkowitz DE, Tankersley CG, Schwartz AR, Smith PL. Leptin prevents respiratory depression in obesity. Am J Respir Crit Care Med. 1999 May;159(5 Pt 1):1477-84. PMID: 10228114.

O'Donnell CP, Tankersley CG, Polotsky VP, Schwartz AR, Smith PL. Leptin, obesity, and respiratory function. Respir Physiol. 2000 Feb;119(2-3):163-70. PMID: 10722859. Special Issue: Sleep and Respiration, Guest Editors: J.E. Remmers, PM Surratt.

Schneider H, Schaub CD, Chen CA, Andreoni KA, Schwartz AR, Smith PL, Robotham JL, O'Donnell CP. Effects of arousal and sleep state on systemic and pulmonary hemodynamics in obstructive apnea. J Appl Physiol (1985). 2000 Mar;88(3):1084-92. PMID: 10710407.

Schneider H, Schaub CD, Chen CA, Andreoni KA, Schwartz AR, Smith PL, Robotham JL, O'Donnell CP. Neural and local effects of hypoxia on cardiovascular responses to obstructive apnea. J Appl Physiol (1985). 2000 Mar;88(3):1093-102. PMID: 10710408.

King ED, O'Donnell CP, Smith PL, Schwartz AR. A model of obstructive sleep apnea in normal humans. Role of the upper airway. Am J Respir Crit Care Med. 2000 Jun;161(6):1979-84. PMID: 10852777.

O'Donnell CP, Schwartz AR, Smith PL. Upper airway collapsibility: the importance of gender and adiposity. Am J Respir Crit Care Med. 2000 Nov;162(5):1606-7. PMID: 11069782.

Schneider H, O'Hearn DJ, Leblanc K, Smith PL, O'Donnell CP, Eisele DW, Peter JH, Schwartz AR. High-flow transtracheal insufflation treats obstructive sleep apnea. A pilot study. Am J Respir Crit Care Med. 2000 Jun;161(6):1869-76. PMID: 10852759.

Boudewyns A, Punjabi N, Van de Heyning PH, De Backer WA, O'Donnell CP, Schneider H, Smith PL, Schwartz AR. Abbreviated method for assessing upper airway function in obstructive sleep apnea. Chest. 2000 Oct;118(4):1031-41. PMID: 11035674.

Polotsky VY, Wilson JA, Haines AS, Scharf MT, Soutiere SE, Tankersley CG, Smith PL, Schwartz AR, O'Donnell CP. The impact of insulin-dependent diabetes on ventilatory control in the mouse. Am J Respir Crit Care Med. 2001 Mar;163(3 Pt 1):624-32. PMID: 11254515.

Polotsky VY, Wilson JA, Smaldone MC, Haines AS, Hurn PD, Tankersley CG, Smith PL, Schwartz AR, O'Donnell CP. Female gender exacerbates respiratory depression in leptin-deficient obesity. Am J Respir Crit Care Med. 2001 Oct 15;164(8 Pt 1):1470-5. PMID: 11704598.

Tagaito Y, Polotsky VY, Campen MJ, Wilson JA, Balbir A, Smith PL, Schwartz AR, O'Donnell CP. A model of sleep-disordered breathing in the C57BL/6J mouse. J Appl Physiol (1985). 2001 Dec;91(6):2758-66. PMID: 11717244.

O'Donnell CP, Allan L, Atkinson P, Schwartz AR. The effect of upper airway obstruction and arousal on peripheral arterial tonometry in obstructive sleep apnea. Am J Respir Crit Care Med. 2002 Oct 1;166(7):965-71. PMID: 12359655.

Campen MJ, Tagaito Y, Jenkins TP, Smith PL, Schwartz AR, O'Donnell CP. Phenotypic differences in the hemodynamic response during REM sleep in six strains of inbred mice. Physiol Genomics. 2002 Dec 3;11(3):227-34. PMID: 12388788.

Tagaito Y, Schneider H, O'Donnell CP, Smith PL, Schwartz AR. Ventilating with tracheal gas insufflation and periodic tracheal occlusion during sleep and wakefulness. Chest. 2002 Nov;122(5):1742-50. PMID: 12426280.

Yamaguchi S, Balbir A, Schofield B, Coram J, Tankersley CG, Fitzgerald RS, O'Donnell CP, Shirahata M. Structural and functional differences of the carotid body between DBA/2J and A/J strains of mice. J Appl Physiol (1985). 2003 Apr;94(4):1536-42. PMID: 12626474.

Smith PL, O'Donnell CP, Allan L, Schwartz AR. A physiologic comparison of nasal and oral positive airway pressure. Chest. 2003 Mar;123(3):689-94. PMID: 12628864.

Punjabi NM, Ahmed MM, Polotsky VY, Beamer BA, O'Donnell CP. Sleep-disordered breathing, glucose intolerance, and insulin resistance. Respir Physiol Neurobiol. 2003 Jul 16;136(2-3):167-78. PMID: 12853008.

Barouch LA, Berkowitz DE, Harrison RW, O'Donnell CP, Hare JM. Disruption of leptin signaling contributes to cardiac hypertrophy independently of body weight in mice. Circulation. 2003 Aug 12;108(6):754-9. PMID: 12885755.

Gurkan OU, O'Donnell C, Brower R, Ruckdeschel E, Becker PM. Differential effects of mechanical ventilatory strategy on lung injury and systemic organ inflammation in mice. Am J Physiol Lung Cell Mol Physiol. 2003 Sep;285(3):L710-8. PMID: 12754185.

Punjabi NM, Ahmed MM, Polotsky VY, Beamer BA, O'Donnell CP. Sleep-disordered breathing, glucose intolerance, and insulin resistance. Respir Physiol Neurobiol. 2003 Jul 16;136(2-3):167-78. PMID: 12853008.

Schneider H, Patil SP, Canisius S, Gladmon EA, Schwartz AR, O'Donnell CP, Smith PL, Tankersley CG. Hypercapnic duty cycle is an intermediate physiological phenotype linked to mouse chromosome 5. J Appl Physiol (1985). 2003 Jul;95(1):11-9. PMID: 12794091.

Cohen RI, Marzouk K, Berkoski P, O'Donnell CP, Polotsky VY, Scharf SM. Body composition and resting energy expenditure in clinically stable, non-weight-losing patients with severe emphysema. Chest. 2003 Oct;124(4):1365-72. PMID: 14555567.

Polotsky VY, Li J, Punjabi NM, Rubin AE, Smith PL, Schwartz AR, O'Donnell CP. Intermittent hypoxia increases insulin resistance in genetically obese mice. J Physiol. 2003 Oct 1;552(Pt 1):253-64. PMID: 12878760.

Rubin AE, Polotsky VY, Balbir A, Krishnan JA, Schwartz AR, Smith PL, Fitzgerald RS, Tankersley CG, Shirahata M, O'Donnell CP. Differences in sleep-induced hypoxia between A/J and DBA/2J mouse strains. Am J Respir Crit Care Med. 2003 Dec 15;168(12):1520-7. PMID: 14512266.

Polotsky VY, Smaldone MC, Scharf MT, Li J, Tankersley CG, Smith PL, Schwartz AR, O'Donnell CP. Impact of interrupted leptin pathways on ventilatory control. J Appl Physiol (1985). 2004 Mar;96(3):991-8. PMID: 14578371.

Patil SP, Punjabi NM, Schneider H, O'Donnell CP, Smith PL, Schwartz AR. A simplified method for measuring critical pressures during sleep in the clinical setting. Am J Respir Crit Care Med. 2004 Jul 1;170(1):86-93. PMID: 15070819.

Groeben H, Meier S, Brown RH, O'Donnell CP, Mitzner W, Tankersley CG. The effect of leptin on the ventilatory responseto hyperoxia. Exp Lung Res. 2004 Oct-Nov;30(7):559-70. PMID: 15371092.

Campen MJ, Tagaito Y, Li J, Balbir A, Tankersley CG, Smith P, Schwartz A, O'Donnell CP. Phenotypic variation in cardiovascular responses to acute hypoxic and hypercapnic exposure in mice. Physiol Genomics. 2004 Dec 15;20(1):15-20. PMID: 15494473.

Minhas KM, Khan SA, Raju SV, Phan AC, Gonzalez DR, Skaf MW, Lee K, Tejani AD, Saliaris AP, Barouch LA, O'Donnell CP, Emala CW, Berkowitz DE, Hare JM. Leptin repletion restores depressed {beta}-adrenergic contractility in ob/ob mice independently of cardiac hypertrophy. J Physiol. 2005 Jun 1;565(Pt 2):463-74. PMID: 15760936.

Campen MJ, Tagaito Y, Jenkins TP, Balbir A, O'Donnell CP. Heart rate variability responses to hypoxic and hypercapnic exposures in different mouse strains. J Appl Physiol (1985). 2005 Sep;99(3):807-13. PMID: 15890760.

Campen MJ, Shimoda LA, O'Donnell CP. Acute and chronic cardiovascular effects of intermittent hypoxia in C57BL/6J mice. J Appl Physiol (1985). 2005 Nov;99(5):2028-35. PMID: 16002771.

Li J, Grigoryev DN, Ye SQ, Thorne L, Schwartz AR, Smith PL, O'Donnell CP, Polotsky VY. Chronic intermittent hypoxia upregulates genes of lipid biosynthesis in obese mice. J Appl Physiol (1985). 2005 Nov;99(5):1643-8. PMID: 16037401.

Li J, Thorne LN, Punjabi NM, Sun CK, Schwartz AR, Smith PL, Marino RL, Rodriguez A, Hubbard WC, O'Donnell CP, Polotsky VY. Intermittent hypoxia induces hyperlipidemia in lean mice. Circ Res. 2005 Sep 30;97(7):698-706. PMID: 16123334.

Iiyori N, Shirahata M, O'Donnell CP. Genetic background affects cardiovascular responses to obstructive and simulated apnea. Physiol Genomics. 2005 Dec 14;24(1):65-72. PMID: 16249313.

Polotsky VY, Rubin AE, Balbir A, Dean T, Smith PL, Schwartz AR, O'Donnell CP. Intermittent hypoxia causes REM sleep deficits and decreases EEG delta power in NREM sleep in the C57BL/6J mouse. Sleep Med. 2006 Jan;7(1):7-16. PMID: 16309961.

Raju SV, Zheng M, Schuleri KH, Phan AC, Bedja D, Saraiva RM, Yiginer O, Vandegaer K, Gabrielson KL, O'donnell CP, Berkowitz DE, Barouch LA, Hare JM. Activation of the cardiac ciliary neurotrophic factor receptor reverses left ventricular hypertrophy in leptin-deficient and leptin-resistant obesity. Proc Natl Acad Sci U S A. 2006 Mar 14;103(11):4222-7. PMID: 16537512.

Balbir A, Okumura M, Schofield B, Coram J, Tankersley CG, Fitzgerald RS, O'Donnell CP, Shirahata M. Genetic regulation of chemoreceptor development in DBA/2J and A/J strains of mice. Adv Exp Med Biol. 2006;580:99-104; discussion 351-9. PMID: 16683704.

Yamaguchi S, Balbir A, Okumura M, Schofield B, Coram J, Tankersley CG, Fitzgerald RS, O'Donnell CP, Shirahata M. Genetic influence on carotid body structure in DBA/2J and A/J strains of mice. Adv Exp Med Biol. 2006;580:105-9; discussion 351-9. PMID: 16683705.

Minoguchi K, Yokoe T, Tanaka A, Ohta S, Hirano T, Yoshino G, O'Donnell CP, Adachi M. Association between lipid peroxidation and inflammation in obstructive sleep apnoea. Eur Respir J. 2006 Aug;28(2):378-85. PMID: 16880368.

Dean T Jr, Allen RP, O'Donnell CP, Earley CJ. The effects of dietary iron deprivation on murine circadian sleep architecture. Sleep Med. 2006 Dec;7(8):634-40. PMID: 17098470.

Polotsky VY, O'Donnell CP. Genomics of sleep-disordered breathing. Proc Am Thorac Soc. 2007 Jan;4(1):121-6. PMID: 17202301.

O’Donnell CP. Metabolic consequences of intermittent hypoxia. Adv Exp Med Biol. 2007;618:41-9. PMID: 18269187.

Li J, Savransky V, Nanayakkara A, Smith PL, O'Donnell CP, Polotsky VY. Hyperlipidemia and lipid peroxidation are dependent on the severity of chronic intermittent hypoxia. J Appl Physiol (1985). 2007 Feb;102(2):557-63. PMID: 17082365.

Minoguchi K, Yokoe T, Tazaki T, Minoguchi H, Oda N, Tanaka A, Yamamoto M, Ohta S, O'Donnell CP, Adachi M. Silent brain infarction and platelet activation in obstructive sleep apnea. Am J Respir Crit Care Med. 2007 Mar 15;175(6):612-7. PMID: 17341649.

Iiyori N, Alonso LC, Li J, Sanders MH, Garcia-Ocana A, O'Doherty RM, Polotsky VY, O'Donnell CP. Intermittent hypoxia causes insulin resistance in lean mice independent of autonomic activity. Am J Respir Crit Care Med. 2007 Apr 15;175(8):851-7. PMID: 17272786.

Alonso LC, Yokoe T, Zhang P, Scott DK, Kim SK, O'Donnell CP, Garcia-Ocaña A. Glucose infusion in mice: a new model to induce beta-cell replication. Diabetes. 2007 Jul;56(7):1792-801. PMID: 17400928.

McGaffin KR, Sun CK, Rager JJ, Romano LC, Zou B, Mathier MA, O'Doherty RM, McTiernan CF, O'Donnell CP. Leptin signalling reduces the severity of cardiac dysfunction and remodelling after chronic ischaemic injury. Cardiovasc Res. 2008 Jan;77(1):54-63. PMID: 18006469.

Yokoe T, Alonso LC, Romano LC, Rosa TC, O'Doherty RM, Garcia-Ocana A, Minoguchi K, O'Donnell CP. Intermittent hypoxia reverses the diurnal glucose rhythm and causes pancreatic beta-cell replication in mice. J Physiol. 2008 Feb 1;586(3):899-911. PMID: 18033815.

Lee EJ, Woodske ME, Zou B, O'Donnell CP. Dynamic arterial blood gas analysis in conscious, unrestrained C57BL/6J mice during exposure to intermittent hypoxia. J Appl Physiol (1985). 2009 Jul;107(1):290-4. PMID: 19056995.

McGaffin KR, Zou B, McTiernan CF, O'Donnell CP. Leptin attenuates cardiac apoptosis after chronic ischaemic injury. Cardiovasc Res. 2009 Jul 15;83(2):313-24. PMID: 19233863.

Woodske ME, Yokoe T, Zou B, Romano LC, Rosa TC, Garcia-Ocana A, Alonso LC, O'Donnell CP, McVerry BJ. Hyperinsulinemia predicts survival in a hyperglycemic mouse model of critical illness. Crit Care Med. 2009 Sep;37(9):2596-603. PMID: 19623043.

Naghshin J, McGaffin KR, Witham WG, Mathier MA, Romano LC, Smith SH, Janczewski AM, Kirk JA, Shroff SG, O'Donnell CP. Chronic intermittent hypoxia increases left ventricular contractility in C57BL/6J mice. J Appl Physiol (1985). 2009 Sep;107(3):787-93. PMID: 19589954.

Sikka G, Yang R, Reid S, Benjo A, Koitabashi N, Camara A, Baraban E, O'Donnell CP, Berkowitz DE, Barouch LA. Leptin is essential in maintaining normal vascular compliance independent of body weight. Int J Obes (Lond). 2010 Jan;34(1):203-6. PMID: 19806156.

O'Donnell CP, Holguin F, Dixon AE. Pulmonary physiology and pathophysiology in obesity. J Appl Physiol (1985). 2010 Jan;108(1):197-8. PMID: 19875706.

Dempsey JA, Veasey SC, Morgan BJ, O'Donnell CP. Pathophysiology of sleep apnea. Physiol Rev. 2010 Jan;90(1):47-112. PMID: 20086074.

Ray NB, Durairaj L, Chen BB, McVerry BJ, Ryan AJ, Donahoe M, Waltenbaugh AK, O'Donnell CP, Henderson FC, Etscheidt CA, McCoy DM, Agassandian M, Hayes-Rowan EC, Coon TA, Butler PL, Gakhar L, Mathur SN, Sieren JC, Tyurina YY, Kagan VE, McLennan G, Mallampalli RK. Dynamic regulation of cardiolipin by the lipid pump Atp8b1 determines the severity of lung injury in experimental pneumonia. Nat Med. 2010 Oct;16(10):1120-1127. PMID: 20852622.

McGaffin KR, Witham WG, Yester KA, Romano LC, O'Doherty RM, McTiernan CF, O'Donnell CP. Cardiac-specific leptin receptor deletion exacerbates ischaemic heart failure in mice. Cardiovasc Res. 2011 Jan 1;89(1):60-71. PMID: 20833647.

Levitt HE, Cyphert TJ, Pascoe JL, Hollern DA, Abraham N, Lundell RJ, Rosa T, Romano LC, Zou B, O'Donnell CP, Stewart AF, Garcia-Ocaña A, Alonso LC. Glucose stimulates human beta cell replication in vivo in islets transplanted into NOD-severe combined immunodeficiency (SCID) mice. Diabetologia. 2011 Mar;54(3):572-82. PMID: 20936253.

Yang R, Sikka G, Larson J, Watts VL, Niu X, Ellis CL, Miller KL, Camara A, Reinke C, Savransky V, Polotsky VY, O'Donnell CP, Berkowitz DE, Barouch LA. Restoring leptin signaling reduces hyperlipidemia and improves vascular stiffness induced by chronic intermittent hypoxia. Am J Physiol Heart Circ Physiol. 2011 Apr;300(4):H1467-76. PMID: 21278136.

Pascoe J, Hollern D, Stamateris R, Abbasi M, Romano LC, Zou B, O'Donnell CP, Garcia-Ocana A, Alonso LC. Free fatty acids block glucose-induced β-cell proliferation in mice by inducing cell cycle inhibitors p16 and p18. Diabetes. 2012 Mar;61(3):632-41. PMID: 22338094.

Alonso LC, Watanabe Y, Stefanovski D, Lee EJ, Singamsetty S, Romano LC, Zou B, Garcia-Ocaña A, Bergman RN, O'Donnell CP. Simultaneous measurement of insulin sensitivity, insulin secretion, and the disposition index in conscious unhandled mice. Obesity (Silver Spring). 2012 Jul;20(7):1403-12. PMID: 2233113.

Naghshin J, Rodriguez RH, Davis EM, Romano LC, McGaffin KR, O'Donnell CP. Chronic intermittent hypoxia exposure improves left ventricular contractility in transgenic mice with heart failure. J Appl Physiol (1985). 2012 Sep 1;113(5):791-8. PMID: 22773770.

Witham W, Yester K, O'Donnell CP, McGaffin KR. Restoration of glucose metabolism in leptin-resistant mouse hearts after acute myocardial infarction through the activation of survival kinase pathways. J Mol Cell Cardiol. 2012 Jul;53(1):91-100. PMID: 22507542.

Watanabe Y, Singamsetty S, Zou B, Guo L, Stefanovski D, Alonso LC, Garcia-Ocana A, O'Donnell CP, McVerry BJ. Exogenous glucose administration impairs glucose tolerance and pancreatic insulin secretion during acute sepsis in non-diabetic mice. PLoS One. 2013;8(6):e67716. PMID: 23826335.

Lee EJ, Alonso LC, Stefanovski D, Strollo HC, Romano LC, Zou B, Singamsetty S, Yester KA, McGaffin KR, Garcia-Ocana A, O'Donnell CP. Time-dependent changes in glucose and insulin regulation during intermittent hypoxia and continuous hypoxia. Eur J Appl Physiol. 2013 Feb;113(2):467-78. PMID: 22801715.

McDowell AL, Filippone AB, Balbir A, Germain A, O'Donnell CP. Mild Transient Hypercapnia as a Novel Fear Conditioning Stimulus Allowing Re-Exposure during Sleep. PLoS One. 2013;8(6):e67435. PMID: 23840700.

Kaczmarek E, Bakker JP, Clarke DN, Csizmadia E, Kocher O, Veves A, Tecilazich F, O'Donnell CP, Ferran C, Malhotra A. Molecular biomarkers of vascular dysfunction in obstructive sleep apnea. PLoS One. 2013 Jul 29;8(7):e70559. PMID: 23923005.

Davis EM, Locke LW, McDowell AL, Strollo PJ, O'Donnell CP. Obesity accentuates circadian variability in breathing during sleep in mice but does not predispose to apnea. J Appl Physiol (1985). 2013 Aug 15;115(4):474-82. PMID: 23722707.

Chalacheva P, Thum J, Yokoe T, O'Donnell CP, Khoo MC. Development of autonomic dysfunction with intermittent hypoxia in a lean murine model. Respir Physiol Neurobiol. 2013 Aug 15;188(2):143-51. PMID: 23774144.

Davis EM, O'Donnell CP. Rodent models of sleep apnea. Respir Physiol Neurobiol. 2013 Sep 15;188(3):355-61. PMID: 23722067.

Rodriguez RH, Bickta JL, Murawski P, O'Donnell CP. The impact of obesity and hypoxia on left ventricular function and glycolytic metabolism. Physiol Rep. 2014;2(4):e12001. PMID: 24771695.

Gladwin MT, O'Donnell CP. Training pulmonary researchers to span the bench-to-bedside "Valley of Death". Am J Respir Crit Care Med. 2014 Nov 1;190(9):977-80. PMID: 25360728.

Behari J, Li H, Liu S, Stefanovic-Racic M, Alonso L, O'Donnell CP, Shiva S, Singamsetty S, Watanabe Y, Singh VP, Liu Q. β-catenin links hepatic metabolic zonation with lipid metabolism and diet-induced obesity in mice. Am J Pathol. 2014 Dec;184(12):3284-98. PMID: 25300578.

Lendermon EA, Dodd-o JM, Coon TA, Miller HL, Ganguly S, Popescu I, O'Donnell CP, Cardenes N, Levine M, Rojas M, Weathington NM, Zhao J, Zhao Y, McDyer JF. CD8(+)IL-17(+) T Cells Mediate Neutrophilic Airway Obliteration in T-bet-Deficient Mouse Lung Allograft Recipients. Am J Respir Cell Mol Biol. 2015 May;52(5):622-33. PMID: 25286244.

Singamsetty S, Watanabe Y, Guo L, Corey C, Wang Y, Tejero J, McVerry BJ, Gladwin MT, Shiva S, O'Donnell CP. Inorganic nitrite improves components of the metabolic syndrome independent of weight change in a murine model of obesity and insulin resistance. J Physiol. 2015 Jul 15;593(14):3135-45. PMID: 25952686.

Drager LF, Polotsky VY, O'Donnell CP, Cravo SL, Lorenzi-Filho G, Machado BH. Translational approaches to understanding metabolic dysfunction and cardiovascular consequences of obstructive sleep apnea. Am J Physiol Heart Circ Physiol. 2015 Oct;309(7):H1101-11. PMID: 26232233.

Singamsetty S, Shah FA, Guo L, Watanabe Y, McDonald S, Sharma R, Zhang Y, Alonso LC, O'Donnell CP, McVerry BJ. Early initiation of low-level parenteral dextrose induces an accelerated diabetic phenotype in septic C57BL/6J mice. Appl Physiol Nutr Metab. 2016 Jan;41(1):12-9. PMID: 26624964.

Stamateris RE, Sharma RB, Kong Y, Ebrahimpour P, Panday D, Ranganath P, Zou B, Levitt H, Parambil NA, O'Donnell CP, García-Ocaña A, Alonso LC. Glucose Induces Mouse β-Cell Proliferation via IRS2, MTOR, and Cyclin D2 but Not the Insulin Receptor. Diabetes. 2016 Apr;65(4):981-95. PMID: 26740601.

Lakshmipathi J, Alvarez-Perez JC, Rosselot C, Casinelli GP, Stamateris RE, Rausell-Palamos F, O'Donnell CP, Vasavada RC, Scott DK, Alonso LC, Garcia-Ocaña A. PKCζ Is Essential for Pancreatic β-Cell Replication During Insulin Resistance by Regulating mTOR and Cyclin-D2. Diabetes. 2016 May;65(5):1283-96. PMID: 26868297.

McDowell AL, McKeon A, Germain A, O’Donnell CP. Genetic variability in fear learning and awakenings to re-exposure on a novel conditioning stimulus during sleep. Sleep and Biological Rhythms. 14(2), 165-175, 2016.

Azarov I, Wang L, Rose JJ, Xu Q, Huang, XN, Belanger A, Wang Y, Guo L, Liu C, Ucer KB, McTiernan CF, O'Donnell CP, Shiva S, Tejero J, Kim-Shapiro DB, Gladwin MT. Five-coordinate H64Q neuroglobin as a ligand-trap antidote for carbon monoxide poisoning. Sci Transl Med. 2016 Dec 7;8(368):368ra173. PMID: 27928027.

Shah FA, Singamsetty S, Guo L, Chuan BW, McDonald S, Cooper BA, O'Donnell BJ, Stefanovski D, Wice B, Zhang Y, O'Donnell CP, McVerry BJ. Stimulation of the endogenous incretin glucose-dependent insulinotropic peptide by enteral dextrose improves glucose homeostasis and inflammation in murine endotoxemia. Transl Res. 2018 Mar;193:1-12. PMID: 29222967.

Ioja S, Singamsetty S, Corey C, Guo L, Shah F, Jurczak MJ, McVerry BJ, Shiva S, O'Donnell CP. Nocturnal Hypoxia Improves Glucose Disposal, Decreases Mitochondrial Efficiency, and Increases Reactive Oxygen Species in the Muscle and Liver of C57BL/6J Mice Independent of Weight Change. Oxid Med Cell Longev. 2018 Feb 4;2018:9649608. PMID: 29507654.

Lendermon EA, Dodd-O JM, Coon TA, Wang X, Ensor CR, Cardenes N, Koodray CL, Heusey HL, Bennewitz MF, Sundd P, Bullock GC, Popescu I, Guo L, O'Donnell CP, Rojas M, McDyer JF. Azithromycin Fails to Prevent Accelerated Airway Obliteration in T-bet-/- Mouse Lung Allograft Recipients. Transplant Proc. 2018 Jun;50(5):1566-1574. PMID: 29880387.

Harmon DB, Wu C, Dedousis N, Sipula IJ, Stefanovic-Racic M, Schoiswohl G, O'Donnell CP, Alonso LC, Kershaw EE, Kelley EE, O'Doherty RM. Adipose tissue-derived free fatty acids initiate myeloid cell accumulation in mouse liver in states of lipid oversupply. Am J Physiol Endocrinol Metab. 2018 Nov 1;315(5):E758-E770. PMID: 30086648.

Wallace ML, Banihashemi L, O'Donnell CP, Nimgaonkar VL, Kodavali C, McNamee R, Germain A. Using optimal combined moderators to define heterogeneity in neural responses to randomized conditions: Application to the effect of sleep loss on fear learning. Neuroimage. Neuroimage. 2018 Nov 1;181:718-727. PMID: 30041060.

O'Donnell BJ, Guo L, Ghosh S, Shah FA, Strollo PJ Jr, McVerry BJ, Gladwin MT, Ofori-Acquah SF, Kato GJ, O'Donnell CP. Sleep phenotype in the Townes mouse model of sickle cell disease. Sleep Breath. 2019 Mar;23(1):333-339. PMID: 30159633.

Davis EM, Baust JJ, O'Donnell BJ, Shah FA, McDowell A, Guo L, O'Donnell CP. A phenotype of increased sleepiness in a mouse model of pulmonary hypertension and right ventricular hypertrophy. PLoS One. 2018 Dec 7;13(12):e0208540. Erratum in: PLoS One. 2019 Jun 10;14(6):e0218401. PMID: 30532231.

Shah FA, Kitsios GD, Zhang Y, Morris A, Yende S, Huang DT, O'Donnell CP, McVerry BJ. Rationale for and Design of the Study of Early Enteral Dextrose in Sepsis: A Pilot Placebo-Controlled Randomized Clinical Trial. JPEN J Parenter Enteral Nutr. 2019 May 30. PMID: 31148210.

Shah FA, Mahmud H, Gallego-Martin T, Jurczak MJ, O'Donnell CP, McVerry BJ. Therapeutic Effects of Endogenous Incretin Hormones and Exogenous Incretin-Based Medications in Sepsis. J Clin Endocrinol Metab. 2019 Nov 1;104(11):5274-5284. PMID: 31216011.

Chuan B, Guo L, Cooper B, Rawal S, Gallego-Martin T, Zhang Y, McVerry BJ,O'Donnell CP, Shah FA. Physiologic effects of exogenous dextrose in murine Klebsiella pneumoniae sepsis vary by route of provision. 2020 Sep 23;12(10):2901. PMID: 32977395.

Frahm KA, Williams AA, Wood AN, Ewing MC, Mattila PE, Chuan BW, Guo L, Shah FA,O'Donnell CP, Lu R, DeFranco DB. Loss of CREBRF reduces anxiety-like behaviors and circulating glucocorticoids in male and female mice. 2020 Nov 1;161(11). PMID: 32901804.

Rose JJ, Bocian KA, Xu Q, Wang L, DeMartino AW, Chen X, Corey CG, Guimarães DA, Azarov I, Huang XN, Tong Q, Guo L, Nouraie M, McTiernan CF, O'Donnell CP, Tejero J, Shiva S, Gladwin MT. A neuroglobin-based high-affinity ligand trap reverses carbon monoxide-induced mitochondrial poisoning. J Biol Chem. 2020 May 8;295(19):6357-6371. PMID: 

Farooq N, Chuan B, Mahmud H, El Khoudary SR, Nouraie SM, Evankovich J, Yang L, Dunlap D, Bain W, Kitsios G, Zhang Y, O'Donnell CP, McVerry BJ, Shah, FA. Association of the systemic host immune response with acute hyperglycemia in mechanically ventilated septic patients. PLoS ONE . March 2021, Vol. 16 Issue 3, p1-14. PMID: 33755703.

Liu Y, Jurczak MJ, Lear TB, Lin B, Larsen MB, Kennerdell JR, Chen Y, Huckestein BR, Nguyen MK, Tuncer F, Jiang Y, Monga SP, O’Donnell CP, Finkel T, Chen BB, Mallampalli RK. A Fbxo48 inhibitor prevents pAMPKα degradation and ameliorates insulin resistance. Nature Chemical Biology. 2021, Vol. 17, p298-306. PMID: 33495648.

Shah FA, Kitsios GD, Yende S, Dunlap DG, Scholl D, Chuan B, Al-Yousif N, Zhang Y, Nouraie SM, Morris A, Huang DT, O'Donnell CP, McVerry BJ. A pilot double-blind placebo-controlled randomized clinical trial to investigate the effects of early enteral nutrients in sepsis. Care Explor. 2021 3(10):e550. PMID: 34651137.

Xie B, Ramirez W, Mills AM, Huckestein BR, Anderson M, Pangburn MM, Lang EY, Mullet SJ, Chuan BW, Guo L, Sipula I, O'Donnell CP, Wendell SG, Scott I, Jurczak MJ. Empagliflozin restores cardiac metabolic flexibility in diet-induced obese C57BL6/J mice. Curr Res Physiol. 2022 May 28;5:232-239. PMID: 35677213.

Book Chapters

Schaub CD, Schneider H, O'Donnell CP, Mechanisms of acute and chronic blood pressure elevation in animal models of obstructive sleep apnea, Sleep Apnea, Cardiovascular and Cerebrovascular Disease, Edited by Bradley TD and Floras JS, Marcel Dekker Series, Vol. 146: 159-179, 2001

Scharf SM, Chen L, Greenberg H, O’Donnell CP, Cardiovascular responses to obstructive apneas - lessons from animal models, Respiratory-Circulatory Interactions in Health and Disease, Marcel Dekker Series, Vol. 157, 2001.

Horner RL, Stephenson R, O’Donnell CP, Instrumentation and Methods of Chronic Studies of Sleep and Breathing in Rodents, Marcel Dekker Series, 2003.

O’Donnell CP, Sleep apnea and metabolic and cardiovascular complications, New Frontiers in Lifestyle-related diseases, Edited by Miyazaki A and Imawari M, Springer, Japan, 99-106, 2008.

McGaffin KG, O’Donnell CP, Obesity, sleep apnea and the cardiorespiratory effects of leptin, Sleep Apnea, Cardiovascular and Cerebrovascular Disease, Edited by Bradley TD and Floras JS, Marcel Dekker Series, 2010.

Sanders MH, Strollo PJ, Atwood CW, Stiller RA, O’Donnell CP, Positive airway pressure in the treatment of sleep apnea-hypopnea, Edited by S. Chokroverty, Bermedica Production, 2010.

Professional Society Membership

  • American Physiological Society, 1992-2019                                                                       
  • American Thoracic Society, 1995-present                                                                       
  • Obesity Society, 2008-2012

Academic Appointments

  • 1984: Temporary lecturer, University of Otago, New Zealand
  • 1991-1992: Instructor, Anesthesiology & Critical Care Medicine, Johns Hopkins Medical School
  • 1992-1997: Assistant Professor, Anesthesiology & Critical Care Medicine, Johns Hopkins Medical School
  • 1997-2001: Assistant Professor, Medicine (Pulmonary and Critical Care Medicine), Johns Hopkins Medical School
  • 1997-2004: Assistant Professor, Anesthesiology & Critical Care Medicine (secondary appointment), Johns Hopkins Medical School
  • 2001-2004: Associate Professor, Medicine (Pulmonary and Critical Care Medicine), Johns Hopkins Medical School
  • 2004-2006: Visiting Associate Professor, Medicine (Pulmonary, Allergy and Critical Care Medicine), University of Pittsburgh
  • 2006-2009: Associate Professor, Medicine (Pulmonary, Allergy and Critical Care Medicine), University of Pittsburgh
  • 2006-2009: Associate Professor, Cell Biology and Physiology (secondary appointment), University of Pittsburgh
  • 2009-2022: Tenured Professor, Medicine (Pulmonary, Allergy and Critical Care Medicine), University of Pittsburgh
  • 2009-2022: Tenured Professor, Cell Biology and Physiology (secondary appointment), University of Pittsburgh
  • 2009-2022: Professor, Vascular Medicine Institute, University of Pittsburgh
  • 2022-present: Vice Dean, Research Development & Operations, University of Maryland School of Medicine