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Xiaofeng  Jia

Xiaofeng Jia B.M., Ph.D.

Academic Title: Associate Professor
Primary Appointment: Neurosurgery
Secondary Appointments: Orthopaedics
Location: MSTF, 5-59, 5-59A
Phone: 410-706-5026

Personal History:

Xiaofeng Jia, B.M., M.S., Ph.D. is an associate professor of the Department of Neurosurgery at the University of Maryland School of Medicine. He was the Associate Research Professor in the Department of Biomedical Engineering, Physical Medicine and Rehabilitation, Anesthesiology & Critical Care Medicine at Johns Hopkins University. He has been a Faculty at the Johns Hopkins University School of Medicine, Baltimore, MD since 2007, after spending three years as a post-doctoral fellow at the Biomedical Engineering department. He received the B.M. degree in Clinical Medicine from Zhejiang Medical University in 1994, the M.S. degree in Surgery from Shanghai Medical University in 1997 and the Ph.D. degree in Surgery (Orthopedics) from Fudan University in 2003. He completed his surgery residency in the Huashan Hospital and Orthopedic Surgery fellowship in the Shanghai 6th People's Hospital. He had been an Attending Surgeon in the Department of Orthopedics at the Shanghai 6th People's Hospital and later the Zhongshan Hospital.

See Dr. Jia's Lab: Translational Neuroengineering and Neuroscience for more information.

Awards and Recognition (Selected from 2006)

  • Finalist of Student Paper Competition Award at the 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE EMBC), 2013 (as sponsor Faculty and corresponding author)
  • Highlight as a significant advance based on animal research at the 65th American Academy of Neurology (AAN) Annual Meeting, 2013
  • Best Presentation Winner for Clinicians in the 2nd Annual Safer Symposium in Johns Hopkins Bayview Medical Center, 2010
  • Top 20 Scientific Exhibits Award of the American Academy of Orthopaedic Surgeons (AAOS), 2009
  • Finalist of the Best Overall Poster Award of American Academy of Orthopaedic Surgeons (AAOS), 2008
  • Recipient of Annual Research Award of American Association for Hand Surgery (AAHS) (Three awarded nationally), 2008
  • Finalist of Research Citation Award of the Society of Critical Care Medicine, 2008
  • American Heart Association (AHA) CPCC Junior Investigator travel award, 2007
  • Selected Presentation for the Press Book of The 36th Annual Meeting of the Society for Neuroscience, 2006

Invited Grant Reviewer

  • National Institute of Health (NIH) Study Section:
    • Brain Injury and Neurovascular Pathologies [BINP] Study Section
    • Biomaterials & Biointerfaces [BMBI] Study Section
    • Acute Neural Injury and Epilepsy [ANIE] Study section
    • Clinical Neuroplasticity and Neurotransmitters [CNNT]
  • National Institute of Academic Anaesthesia (NIAA)
  • North Carolina University Biotechnology Center Institutional Development Grant 

Invited Abstract Grader and Reviewer

  • The 6th International IEEE Engineering in Medicine and Biology Society (EMBS) Conference on Neural Engineering, 2013
  • The 38th - 43th Society of Critical Care Medicine annual Congress, 2008-2014
  • The 3rd International Symposium on Bio- and Medical Informatics and Cybernetics: BMIC 2009
  • Peer Reviewer for the American Heart Association

Editorial Board

  • Behavioural Neurology
  • International Journal of Molecular Sciences
  • Journal of Medical Engineering
  • Advances in Biomedical Engineering Research (ABER)
  • ISRN Emergency Medicine
  • Journal of Autoimmune Diseases and Rheumatology (JADR)
  • Journal of JSM (JSciMed) Cell
  • Journal of JSM Regenerative Medicine

Invited Moderator

  • Professor Walk Round Moderator inthe 39th, 40th, 42th and 43th Society of Critical Care Medicine annual Congress
  • 14th Annual ACCM Research Day, Johns Hopkins University

Invited/Adhoc Journal Reviewer

  • Circulation
  • Stem Cell
  • Critical Care Medicine
  • Journal of Molecular and Cellular Cardiology
  • International Journal of Developmental Neuroscience
  • Resuscitation
  • Anesthesia and Analgesia
  • British Journal of Nutrition
  • International Journal of Molecular Sciences
  • Journal of Neurosurgical Anesthesiology
  • Medical & Biological Engineering & Computing
  • Journal of Biomaterials Science, Polymer Edition
  • The Institute of Electrical and Electronics Engineers (IEEE) Sensors Journal
  • Computers in Biology and Medicine
  • The European Association for Signal Processing (EURASIP) Journal on Advances in Signal Processing
  • Hand
  • Computational Intelligence and Neuroscience
  • Recent Patents on Regenerative Medicine
  • British Journal of Medicine and Medical Research
  • International Molecular Science
  • ISRN Emergency Medicine

Guest Editor

  • International Journal of Molecular Sciences (Impact Factor – 2.464, 2012)Special issue on Neurological Injuries’ Monitoring, Tracking and Treatment
  • BioMed Research International (Impact Factor – 2.880, 2012): Special Issue on Peripheral Nerve Regeneration: Mechanism, Cell Biology, and Therapies

Institutional Administrative/Committee Activities

  • The Johns Hopkins University Medical School Council, 2007-2008
  • Joint Committee on Johns Hopkins University School of Medicine Graduate Medical Education and Postdoctoral Programs, 2007-2008

Organizational Activities

  • American Academy of Orthopaedic Surgeons (AAOS): 2005 - present
  • American Association for Hand Surgery (AAHS): 2007 - present
  • American Heart Association (AHA): 2005 - present
  • Society of Critical Care Medicine (SCCM): 2007 - present
  • Society for Neuroscience (SFN): 2005 to 2010
  • International Society for Heart Research (North American Section) 2008-2010

Professional Experience (from 2007)

  • Faculty (Research Associate rank), Department of Biomedical Engineering, Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, 2007-2011
  • Assistant Research Professor, Department of Biomedical Engineering, Whiting School of Engineering, Physical Medicine and Rehabilitation, Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, 2011-2013
  • Associate Research Professor, Department of Biomedical Engineering, Whiting School of Engineering, Physical Medicine and Rehabilitation, Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, 2013-Present

Research Interests:

Dr. Jia's research interests include brain monitoring and therapeutic hypothermia, peripheral nerve injury and regeneration, translational therapeutic model for neurological injuries, development and characterization of biomaterials for bone and peripheral nerve regeneration.

  1. Brain Monitoring and Therapeutic Hypothermia

    The current research focuses on the development of novel translational tools for uncovering mechanisms of brain injury after cardiac arrest, monitoring and tracking the neurological injuries, and guiding treatments like therapeutic hypothermia.

    The goal is to develop quantitative EEG based neuro-electrical markers of coma and arousal after cardiac arrest, and modulate therapeutic hypothermia by quantitative electrophysiological markers toward improved functional outcome. This project seeks to explore the impact of therapeutic hypothermia on spatio-temporal pattern of glucose utilization measured by small animal positron emission tomography (PET) imaging, and electrophysiological recovery after cardiac arrest.

  2. Peripheral Nerve Injury

    The current research focuses on developing novel methodology to promote nerve regeneration after peripheral nerve injury and developing novel nerve scaffold for the next generation of nerve signal controlled prosthetic limbs.

    This grant from supports Maryland Stem Cell Research Fund new and/or innovative hypotheses, approaches, mechanisms or models that will advance the field of regenerative medicine and generate human stem cell therapies to repair or replace missing, damaged, or diseased cells, tissues and organs. This project aims to develop potential cell based therapies for peripheral nerve injury to enhance peripheral nerve regeneration and functional recovery in a translational model.

See Dr. Jia's Lab: Translational Neuroengineering and Neuroscience for more information.

Grants & Contracts:

X Jia (PI)
7/1/13 - 3/30/18
Brain Monitoring and Therapeutic Hypothermia after Cardiac Arrest

TEDCO, State of Maryland
X Jia (PI)
7/01/13 - 6/30/15
Electrical Stimulation on Neural Crest Stem Cell Transplantation in Nerve Regeneration

American Heart Association
X Jia (PI)
7/1/2009-6/30/2013 NCE 6/30/2014
Quantitative Somatosensory Evoked Potential: Novel approach to Monitoring Neurologic Recovery Post Cardiac Arrest


Since 2006

  1. Temple JP, Hutton DL, Hung BP, Huri PY, Cook CA, R Kondragunta, Jia X, Grayson WL. Engineering Anatomically Shaped Vascularized Bone Grafts with hASCs and 3D-Printed PCL Scaffolds. The Journal of Biomedical Materials Research: Part A. 2014 In Press
  2. Chen C, Maybhate A, Israel D, Thakor NV, Jia X*. Analysis of Granger Causality for Assessment of Thalamocortical Functional Connectivity. IEEE Trans Neural Syst Rehabil Eng. 2013 Sep;21(5):725-33. doi: 10.1109/TNSRE.2013.2271246. Epub 2013 Jul 10  PMID: 23864221
  3. Li J, Zhen G, Tsai SY, Jia X*. Epidermal Stem Cells in Orthopaedic Regenerative Medicine. International Journal of Molecular Sciences. 2013 May 31;14(6):11626-42. doi: 10.3390/ijms140611626 PMID: 23727934
  4. Zhen G, Wen C, Jia X, Li Y, Crane JL, Mears SC, Askin FB, Frassica FJ, Chang W, Yao J, Carrino JA, Cosgarea A, Artemov D, Chen Q, Zhao Z, Zhou X, Riley L, Sponseller P, Wan M, Lu WW, Cao X. Inhibition of TGF-β signaling in mesenchymal stem cells of subchondral bone attenuates osteoarthritis. Nature Medicine 2013 Jun;19(6):704-12. doi: 10.1038/nm.3143. Epub 2013 May 19. PMID: 23685840 Highlighted in [Editorials] by Bush JR, Beier F. TGF-β and osteoarthritis--the good and the bad. Nat Med. 2013 Jun;19(6):667-9. doi: 10.1038/nm.3228, and in Nat Rev Rheumatol by Leah E. Osteoarthritis: TGF-β overload at bones of cartilage degeneration. 2013 Jul;9(7):382. doi: 10.1038/nrrheum.2013.81. Epub 2013 May 28.
  5. Nag S, Jia X, Thakor NV, Sharma D. Flexible Charge Balanced Stimulator with 5.6 fC Accuracy for 140 nC Injections. IEEE Transactions on Biomedical Circuits and Systems 2013; 7(3): 266-275 DOI:10.1109/TBCAS.2012.2205574 PMID: 23853326 IEEE Xplore
  6. Liu S, Jia X, Li C, Han X, Yan W, Xing Y. CXCR7 silencing attenuates cell adaptive response to stromal cell derived factor 1α after hypoxia. PLOS ONE 2013;8(1):e55290. doi: 10.1371/journal.pone.0055290. Epub 2013 Jan 31. PMID: 23383139
  7. Jia X*, Kowalski RG, Sciubba DM, Geocadin RG. Critical Care of Traumatic Spinal Cord Injury. J Intensive Care Med. 2013 Jan-Feb;28(1):12-23. doi: 10.1177/0885066611403270. Epub 2011 Apr 11. PMID: 21482574
  8. Wan M, Li C, Zhen G, Jiao K, He W, Jia X, Wang W, Shi C, Xing Q, Chen YF, Jan De Beur S, Yu B, Cao X. Injury-Activated TGFβ Controls Mobilization of Mscs for Tissue Remodeling. Stem Cells 2012 Nov;30(11):2498-511. doi: 10.1002/stem.1208. Epub 2012 Aug 21 PMID: 22911900
  9. Kortelainen J, Jia X, Seppänen T, Thakor NV. Increased electroencephalographic gamma activity reveals awakening from isoflurane anaesthesia in rats. British Journal of Anaesthesia. 2012 Nov;109(5):782-9 doi: 10.1093/bja/aes265. Epub 2012 Aug 19 PMID: 22907339
  10. Tan EW, Ting BL, Jia X, Skolasky RL, McFarland EG. Diagnostic errors in orthopaedic surgery: evaluation of resident documentation of neurovascular examinations for orthopaedic trauma patients. Am J Med Qual 2013 Jan;28(1):60-8. doi: 10.1177/1062860612447856. Epub 2012 Jul 13. PMID: 22798636
  11. Xian L, Wu X, Pang L, Lou M, Rosen C, Qiu T, Crane J, Frassica F, Zhang L, Rodriguez JP, Jia X, Yakar S, Xuan S, Efstratiadis A, Wan M, Cao X. Matrix IGF-1 maintains bone mass by activation of mTOR in mesenchymal stem cells. Nature Medicine 2012 18 (7), 1095-1101 Epub 2012 Jun 24. doi: 10.1038/nm.2793. PMID: 22729283 Highlighted in Nat Rev Rheumatol by Carney EF.Bone: modulation of IGF-1 might prevent osteoporosis. 2012 Aug;8(8):440. doi: 10.1038/nrrheum.2012.112. Epub 2012 Jul 10
  12. Zhang D, Jia X, Ding H. The effect of anesthetic concentration on burst-suppression of the EEG in rats. Journal of Biomedical Engineering (Sheng Wu Yi Xue Gong Cheng Xue Za Zhi). 2012 Apr;29(2):223-8, 232. PMID: 22616162
  13. Madhok J, Wu D, Xiong W, Geocadin RG, Jia X*. Hypothermia amplifies somatosensory evoked potentials in uninjured rats. J Neurosurg Anesthesiol. 2012 Jul;24(3):197-202 Equb 2012 Mar 20 PMID: 22441433
  14. Wu D, Xiong W, Jia X, Geocadin RG, Thakor NV. Short- and Long-latency Somatosensory Neuronal Responses Reveal Selective Brain Injury and Effect of Hypothermia in Global Hypoxic-Ischemia. Journal of Neurophysiology 2012 Feb;107(4):1164-71. Epub 2011 Dec 7 PMID: 22157111
  15. Dewan AK, Garzon-Muvdi J, Petersen SA, Jia X, McFarland EG. Intraarticular Abnormalities in Overhead Athletes Are Variable. Clin Orthop Relat Res 2012 Jun;470(6):1552-7 Epub 2011 Nov 18 PMID: 22095131
  16. Ma Y, Hu Y, Valentin N, Geocadin R, Thakor NV, Jia X*. Time Jitter of Somatosensory Evoked Potentials in Recovery from Hypoxic-ischemic Brain Injury. Journal of Neuroscience Methods 2011 Oct 15;201(2):355-360. Epub 2011 Aug 22. PMID: 21878352
  17. Jia X*, Peters PG, Schon L. The Use of Platelet-Rich Plasma in the Management of Foot and Ankle Conditions. Operative Techniques in Sports Medicine 2011 Sept 19(3) 177-184 DOI
  18. Jia X, Yokota A, McCarty EC, Nicholson GP, Weber SC, McMahon PJ, Dunn WR, McFarland EG. Reproducibility and Reliability of the Snyder Classification of Superior Labral Anterior Posterior Lesions Among Shoulder Surgeons. Am J Sports Med 2011 May;39(5):986-91. Epub 2011 Feb 1 PMID: 21285446
  19. Lewitus D, Vogelstein J, Zhen G, Choi YS, Kohn J, Harshbarger S, Jia X*. Designing Tyrosine-derived Polycarbonate Polymers for Biodegradable Regenerative Type Neural Interface Capable of Neural Recording. IEEE Trans Neural Syst Rehabil Eng. 2011 Apr;19(2):204-12. Epub 2010 Dec 10. PMID: 21147598
  20. Wu D, Anastassios B, Xiong W, Madhok J, Jia X, Thakor NV. Study of the origins of short- and long-latency SSEP during recovery from brain ischemia in a rat model. Neuroscience Letters 2010 Nov 26;485(3):157-61. Epub 2010 Sep 21 PMID: 20816917
  21. Jia X, Ji JH, Pannirselyam VK, Petersen S, McFarland EG. Does a Positive Neer Impingement Sign Reflect Rotator Cuff Contact with the Acromion? Clin Orthop Relat Res, 2011 Mar;469(3):813-8. Epub 2010 Sep 28 PMID: 20878281
  22. Madhok J, Maybhate A, Xiong W, Geocadin RG, Jia X*, Thakor NV*. Quantitative Assessment of Somatosensory Evoked Potentials after Cardiac Arrest in Rats: Prognostication of Functional Outcomes. Critical Care Medicine 2010 Aug;38(8):1709-17. Epub 2010 Jun 3 PMID: 20526197 Highlighted in [Editorials] by Young GB. Promising prognostic potentials: perhaps. Crit Care Med. 2010 Aug;38(8):1753. doi: 10.1097/CCM.0b013e3181e8788c.
  23. Choi Y, Koenig MA, Jia X, Thakor NV. Quantifying Time-varying Multiunit Neural Activity using Entropy based Measures. IEEE Tran. Biomedical Eng 2010 Nov 57(11):2771-7. May 10. [Epub ahead of print] PMID: 20460201
  24. Xiong W, Koenig M, Madhok J, Jia X, Puttgen HA, Thakor NV, Geocadin RG. Evolution of Somatosensory Evoked Potentials after Cardiac Arrest Induced Hypoxic-Ischemic Injury. Resuscitation 2010 Jul;81(7):893-7. Epub 2010 AprPMID: 20418008 Highlighted in [Editorials] by Young GB. Somatosensory evoked potentials after cardiac arrest: a stimulus for investigation. Resuscitation. 2010 Jul;81(7):784-5. doi: 10.1016/j.resuscitation.2010.03.032. Epub 2010 Apr 24.
  25. McFarland EG, Garzon-Muvdi J, Jia X, Desai P, Petersen SA. Clinical and Diagnostic Tests for Shoulder Disorders: A Critical Review. British Journal of Sports Medicine 2010;44(5):328-3320 Epub 2009 Dec 2. PMID: 19955165
  26. Jia X, Petersen S, Khosravi AH, Almareddi V, Pannirselvam V, McFarland EG. Examination of the Shoulder: the Past, the Present, and the Future. The Journal of Bone and Joint Surgery (AM)  2009 91(Suppl 6):10-18 PMID: 19884407
  27. McFarland EG, Tanaka MJ, Garzon-Muvdi J, Jia X, Petersen S. Clinical and imaging assessment for superior labrum anterior and posterior lesions. Curr Sports Med Rep. 2009 Sep-Oct;8(5):234-9 PMID: 19741350
  28. Jia X, Ji JH, Petersen S, Freehill MT, McFarland EG. An Analysis of Shoulder Laxity in Patients Undergoing Shoulder Surgery. The Journal of Bone and Joint Surgery (AM) 2009 Sep;91(9):2144-50 PMID: 19723991
  29. Zhang D, Jia X, Ding H, Ye D, and Thakor NV. Application of Tsallis Entropy to EEG: Quantifying the Presence of Burst Suppression after Asphyxial Cardiac Arrest in Rats. IEEE Tran. Biomedical Eng 2010 57 (4): 867 â?" 874 Epub 2009 Aug 18. PMID: 19695982
  30. Kang X, Jia X, Geocadin RG, Thakor NV, Maybhate A. Multi-scale entropy analysis for assessment of post-cardiac arrest recovery under hypothermia. IEEE Tran. Biomedical Eng 2009 April 50 (4):1023-31 PMID: 19174339
  31. Koenig MA, Jia X, Kang X, Velasquez A, Thakor NV, Geocadin RG. Intraventrcular Orexin-A Improves Arousal and EEG Entropy in Rats after Cardiac Arrest. Brain Res. 2009 Feb 19;1255:153-61. Epub 2008 Dec 16.   PMID: 19111527
  32. Li N, Jia X, Murari K, Parlapalli R, Rege A, Thakor NV. High Spatiotemporal Resolution Imaging of the Neurovascular Response to Electrical Peripheral Trigeminal Nerve Stimulation as Revealed by in vivo Laser Speckle Contrast. Journal of Neuroscience Methods 2009 Jan;176(2):230-6. Epub 2008 Jul 25. PMID: 18706442
  33. Jia X, Ji JH, Petersen S, Keefer J, McFarland EG. Clinical Evaluation of the Shoulder Shrug Sign. Clin Orthop Relat Res,  2008 Nov;466(11):2813-9 PMID: 18543050
  34. Jia X*, Koenig MA, Venkatraman A, Thakor NV, Geocadin RG. Post-cardiac arrest temperature manipulation alters early EEG bursting in rats. Resuscitation 2008 Sep; 78, (3):367-373 PMID: 18597914
  35. Shin HC, Jia X, Nickl R, Geocadin RG and Thakor NV. A Subband-based Information Measure of EEG During Brain Injury and Recovery After Cardiac Arrest, IEEE Tran. Biomedical Eng 2008 Aug;55(8):1985-90 PMID: 18632361 Highlighted in Journal Cover Illustration
  36. Geocadin RG, Koenig MA, Jia X, Stevens RD, Peberdy MA. Management of brain injury after resuscitation from cardiac arrest. Neurol Clin 2008 May 26 (2) 487-506 PMID: 18514823
  37. Jia X*, Koenig MA, Nickl R, Zhen G, Thakor NV, Geocadin RG. Early Electrophysiologic Markers Predict Functional Outcome Associated with Temperature Manipulation after Cardiac Arrest in Rats. Critical Care Medicine 2008; 36 (6):1909-16 PMID: 18496359 Highlighted in [Editorials] by Tempelhoff, René MD; Yoder, Jeffrey MD. Monitoring the brain: Lack of tools or lack of will? Critical Care Medicine 2008; 36 (6):1983-1984
  38. Jia X*, Zhen G, Puttgen A, Zhang J, Chen T. Improved long-term recording of nerve signal by modified intrafascicular electrodes in rabbits. Microsurgery 2008 28(3): 173-178 PMID: 18286654
  39. McFarland EG, Srikumaran U, Petersen SA, Jia X and Fayad LM. How to make sense of shoulder MRI: determining when to treat and when to refer. J Musculoskelet Med 2007 24(12):500-506
  40. Jia X*, Koenig MA, Shin HC, Zhen G, Pardo CA, Hanley DF, Thakor NV, Geocadin RG. Improving neurological outcomes post-cardiac arrest in a rat model: Immediate hypothermia and quantitative EEG monitoring. Resuscitation, 2008 March 76(3), 431-442 PMID: 17936492
  41. Murari K, Li N, Rege A, Jia X, All A, Thakor NV. Contrast Enhanced Imaging of Cerebral Vasculature with Laser Speckle. Applied Optics. 2007 Aug 1, 46(22), 5340-5346 PMID: 17676149
  42. Jia X*, Koenig MA, Zhang X, Zhang J, Chen T, Chen Z. Residual Motor Signal In Long-Term Human Severed Peripheral Nerves And Feasibility Of Neural Signal-Controlled Artificial Limb. The Journal of Hand Surgery (AM). 2007 May-June, 32(5), 657-666 PMID: 17482005
  43. Jia X*, Koenig MA, Shin HC, Zhen G, Yamashita S, Thakor NV, Geocadin RG. Quantitative EEG and Neurological Recovery after therapeutic Hypothermia of Asphyxial Cardiac Arrest in Rats. Brain Research, 2006 September 21, 1111(1) 166-175 PMID: 16919609
  44. Shin HC, Tong S, Yamashita S, Jia X, Geocadin RG, Thakor NV, Quantitative EEG and Effect of Hypothermia on Brain Recovery After Cardiac Arrest. IEEE Trans. on Biomedical Eng, 2006 Jun, 53 (6): 1016-1023 PMID: 16761828
  45. Hu T, Zhang X, Zhang Z, Zhang J, Jia X, Zheng X, Yang Y, Chen Z, Xu X, Chen T. Initial detection and analysis of neuro-information from amputee. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2006 Feb; 23(1):1-5 PMID: 16532797

Publications Search

Links of Interest:

Dr. Jia's Lab Website