Allan I. Pack - Faculty Biosketch

Allan I. Pack, M.B.Ch.B., Ph.D., FRCP

John Miclot Professor

Fellow, Institute on Aging, University of Pennsylvania, Philadelphia, PA

Member, Institute for Neurological Sciences, University of Pennsylvania, Philadelphia, PA

Member, Center for Neurobiology and Behavior, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA

Member, Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania, Philadelphia, PA

Assistant Dean and Director of Global Sleep Programs, Perelman School of Medicine, University of Pennsylvaia

Director of Research Training, Division of Sleep Medicine/Department of Medicine, University of Pennsylvania, Philadelphia, PA

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Department: Medicine

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46 Contact information
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Translational Research Laboratories
49 125 South 31st Street, Suite 2100
Philadelphia, PA 19104-3403

2e Office: 215-746-4806
32 Fax: 215-746-4814
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Email:
PACK@PENNMEDICINE.UPENN.EDU

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1f Graduate Group Affiliations 8

Neuroscience
Genomics and Computational Biology

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18 Publications
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26 Search PubMed for articles c

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Links
96 Search PubMed for articles
3e Neuroscience graduate group faculty webpage.
62 Primary Work Website
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13 Education:
21 d M.B.Ch.B c
38 University of Glasgow, Scotland, 1967.
21 a Ph.D. 31 (Mathematical models of lung function) c
38 University of Glasgow, Scotland, 1976.
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1f Post-Graduate Training
24 94 Junior House Officer in Medicine, Department of Medicine, Glasgow Royal Infirmary, Scotland [Equivalent to Internship], 1967-1968.
24 83 Senior House Officer in Medicine, Department of Medical Cardiology, Glasgow Royal Infirmary, Scotland, 1968-1969.
24 8d Junior House Officer in Surgery, Glasgow Royal Infirmary, Scotland [Equivalent to Internship; February to July], 1968-1968.
24 8f Registrar in Internal/Pulmonary Medicine, Glasgow Royal Infirmary, Scotland [Equivalent to Residency, Fellowship], 1970-1973.
24 7f Wellcome Research Fellow, Centre for Respiratory Investigation, Glasgow Royal Infirmary, Scotland, 1973-1976.
24 96 Honorary Senior Registrar, Respiratory Medicine, Centre for Respiratory Investigation, Glasgow Royal Infirmary, Scotland, 1974-1976.
24 99 Senior Registrar, Pulmonary Medicine, Glasgow Royal Infirmary (further training in Pulmonary Medicine) [February to August], 1976-1976.
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17 Certifications
28 69 MRCP (UK) (postgraduate examination - equivalent to Boards of Internal Medicine), 1970.
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3 8d Permanent link
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b6 > Perelman School of Medicine > Faculty > Details a

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Description of Research Expertise

380 Dr. Pack is pursuing research on genetics/genomics of sleep and its disorders. His laboratory is conducting studies in Drosophila and mice and translating these findings to humans. A particular focus of Dr. Pack’s work is to evaluate the genetic determinants of sleep homeostasis. Studies are ongoing to evaluate molecular mechanisms of sleepiness and sleep promotion using both hypothesis-driven and discovery science. The latter involves analysis of the changes in the transcription with sleep/wake and sleep deprivation in identified neuronal populations. Techniques being used include behavioral/sleep studies in Drosophila and mice, RT-PCR, Western analysis of protein, expression profiling, laser microcapture dissection, RNA seq and immunohistochemistry. Dr. Pack is committed to research training and directs three training grants from the National Institutes of Health.
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Description of Clinical Expertise

14a Dr. Pack's clinical expertise is in sleep disorders with a particular focus on diagnosis and management of obstructive sleep apnea. He is internationally recognized for his expertise in this area and has been listed in the Best Doctor's in the United States and in the Philadelphia region (Philadelphia Magazine).
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Selected Publications

1b3 Finnsson, E., Arnardottir, E., Montazeri, K., Keenan, B. T., Schwab, R. J., Gislason, T., Pack, A. I., Wellman, A., Islind, A. S., Agustsson, J. S., & Sands, S. A.: Respiratory inductance plethysmography to quantify changes in ventilation in obstructive sleep apnea. IEEE Transactions on Biomedical Engineering October 2025 Notes: doi: 10.1109/TBME.2025.3618403.

185 Keenan, B. T., Strus, E., Lin, R., Chan, M., Lian, J., Galante, R., Worley, P., Pack, A. I., & Naidoo, N.: Mutant mouse models implicate a role for mGluR1/5, prolyl isomerase (Pin1) and Homer1a interactions in wakefulness. Frontiers in Neuroscience 19: 1572258, September 2025 Notes: doi: 10.3389/fnins.2025.1572258.

2ac Kurniansyah, N., Strausz, S. J., Chittoor, G., Gupta, S., Justice, A. E., Hrytsenko, Y., Keenan, B. T., Cade, B. E., Spitzer, B. W., Wang, H., Huffman, J., Moll, M. R., Haring, B., Jung, S. Y., Raffield, L. M., Kaplan, R., Rotter, J. I., Rich, S. S., Gharib, S. A., Bartz, T. M., Liu, P.Y., Chen, H., Fornage, M., Hou, L., Levy, D., Morrison, A.C., Ochs-Balcom, H.M., Psaty, B.M., Wilson, P.W.F., Cho, K., Pack, A.I., Ollila, H.M., Redline, S., Gottlieb, D.J., Sofer, T.: Polygenic scores for obstructive sleep apnoea reveal pathways. EBioMedicine 117: 105790, July 2025 Notes: doi: 10.1016/j.ebiom.2025.105790.

1ad Imamura, T., Wasilczuk, A. Z., Reitz, S. L., Lian, J., Imamura, M., Keenan, B. T., Shimizu, N., Pack, A. I., & Kelz, M. B.: Parafacial GABAergic neurone ablation induces behavioural resistance to volatile anaesthetic-induced hypnosis without reducing sleep. British journal of anaesthesia 134(6): 1696-1708, June 2025 Notes: doi: 10.1016/j.bja.2025.02.035.

1a4 Xu, L., Keenan, B. T., Wiemken, A. S., Staley, B., Benediktsdottir, B., Juliusson, S., Pack, A. I., Gislason, T., & Schwab, R. J. : The relationship between upper airway anatomy and obesity in patients with obstructive sleep apnea. Annals of the American Thoracic Society 22(11): 1749–1763, June 2025 Notes: doi: 10.1513/AnnalsATS.202410-1027OC.

212 Lee, R., Larson, O., Dhaliwal, S., Moon, K., Gerardy, B., de Chazal, P., Cistulli, P. A., Chen, N. H., Han, F., Li, Q. Y., Maislin, G., McArdle, N., Penzel, T., Schwab, R. J., Tufik, S., Magalang, U. J., Singh, B., Gislason, T., Pack, A. I., Keenan, B. T., Younes, M., Gehrman, P.: Comparative analysis of sleep physiology using qualitative and quantitative criteria for insomnia symptoms. Sleep 48(3): zsae301, March 2025 Notes: doi: 10.1093/sleep/zsae301.

177 Mazzotti, D. R., Magalang, U. J., Keenan, B. T., Mindel, J., Younes, M., Penzel, T., Pack, A. I., & de Chazal, P.: OSA symptom subtypes and hypoxic burden independently predict distinct cardiovascular outcomes. ERJ open research 11(1): 00511-2024, February 2025 Notes: doi: 10.1183/23120541.00511-2024.

183 Kneeland, E., Ali, N., Maislin, D. G., Chang, Y. H., Epelboim, J., Keenan, B. T., & Pack, A. I.: Achieving adherence to positive airway pressure in commercial drivers using an employer-mandated remote management programme. ERJ Open Research 10(6): 00132-2024, November 2024 Notes: doi: 10.1183/23120541.00132-2024.

1eb Sonti, S., Littleton, S.H., Pahl, M.C., Zimmerman, A.J., Chesi, A. Palermo, J., Lascni, C., Brown, E.B., Pippin, J.A., Wells, A.D., Doldur-Balli F., Pack, A.I., Gehrman, P.R., Keene, A.C., and Grant, S.F.A.: Perturbation of the insomnia WDR90 GWAS locus pinpoints rs3752495 as a causal variant influencing distal expression of neighboring gene, PIG-Q. Sleep 47(7): zsae085, July 2024 Notes: doi: 10.1093/sleep/zsae085.

187 Xu, L., Yi, H., Pi, M., Zhang, C., Keenan, B.T., Glick, H.A., Dong, X., Pack, A.I., Han, F., and Kuna, S.T.: Telemedicine management of obstructive sleep apnea disorder in China: a randomized, controlled, non-inferiority trial. Sleep and Breathing 28(3): 1173–1185, June 2024 Notes: doi: 10.1007/s11325-024-02994-6.

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26 Last updated: 04/23/2026
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