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Photo of Dr. Maureen Renee Horton, M.D.

Maureen Renee Horton, M.D.

Associate Professor of Medicine


Appointment Phone


Main Location

The Johns Hopkins Hospital

Out-of-State & International Patients +
Out of State Patients

Call 410-464-6641 (8a.m. to 6p.m., EST, Mon-Fri)

Learn more about our out-of-state patient services »

International Patients

Call +1-410-502-7683 (7a.m. to 6p.m., EST, Mon-Fri)

Learn more about our international patient services »


  • Associate Professor of Medicine



The Johns Hopkins Hospital

Appointment Phone: 410-955-3467

600 N. Wolfe Street
Sheikh Zayed Tower
Baltimore, MD 21287 map

Johns Hopkins Bayview Medical Center

Appointment Phone: 410-550-5864

4940 Eastern Avenue
Baltimore, MD 21224 map


Autoimmune Diseases, Autoimmune Lung Disease, Interstitial Lung Disease, Pulmonary and Critical Care Medicine

Research Interests

Idiophathic pulmonary fibrosis; Interstitial lung disease; Occupational lung disease

    Additional Information

  • Education +


    • Johns Hopkins University School of Medicine / MD (1992)


    • Johns Hopkins University School of Medicine / Internal Medicine (1995)


    • Johns Hopkins University School of Medicine / Pulmonary and Critical Care Medicine (1999)


    • American Board of Internal Medicine / Critical Care Medicine (2000, 2010)
    • American Board of Internal Medicine / Internal Medicine (1995, 2005)
    • American Board of Internal Medicine / Pulmonary Disease (1999, 2009)
  • Research & Publications +

    Selected Publications View all on PubMed

    1. Sussan TE, Ingole V, Kim JH, McCormick S, Negherbon J, Fallica J, Akulian J, Yarmus L, Feller-Kopman D, Wills-Karp M, Horton MR, Breysse PN, Agrawal A, Juvekar S, Salvi S, Biswal S. Source of Biomass Cooking Fuel Determines Pulmonary Response to Household Air Pollution. Am J Respir Cell Mol Biol. 2013 Oct 8. [Epub ahead of print] PMID: 24102120
    2. Black KE, Collins SL, Hagan RS, Hamblin MJ, Chan-Li Y, Hallowell RW, Powell JD, Horton MR. Hyaluronan fragments induce IFNβ via a novel TLR4-TRIF-TBK1-IRF3-dependent pathway. J Inflamm (Lond). 2013 May 30;10(1):23. doi: 10.1186/1476-9255-10-23. PMID: 23721397
    3. Lechtzin N, Horton MR. Author reply: To PMID 22986377. Ann Intern Med. 2013 Mar 19;158(6):498-9. doi: 10.7326/0003-4819-158-6-201303190-00016. No abstract available. PMID: 23553005
    4. Lechtzin N, Hilliard ME, Horton MR. Validation of the Cough Quality-of-Life Questionnaire in patients with idiopathic pulmonary fibrosis. Chest. 2013 Jun;143(6):1745-9. doi: 10.1378/chest.12-2870. PMID: 23519393
    5. Collins S, Waickman A, Basson A, Kupfer A, Licht JD, Horton MR, Powell JD. Regulation of CD4⁺ and CD8⁺ effector responses by Sprouty-1. PLoS One. 2012;7(11):e49801. doi: 10.1371/journal.pone.0049801. Epub 2012 Nov 15. PMID: 23166773
    6. Horton MR, Hallowell RW. Revisiting thalidomide: fighting with caution against idiopathic pulmonary fibrosis. Drugs Today (Barc). 2012 Oct;48(10):661-71. doi: 10.1358/dot.2012.48.10.1855760. Review. PMID: 23110262
    7. Horton MR, Santopietro V, Mathew L, Horton KM, Polito AJ, Liu MC, Danoff SK, Lechtzin N. Thalidomide for the treatment of cough in idiopathic pulmonary fibrosis: a randomized trial. Ann Intern Med. 2012 Sep 18;157(6):398-406. doi: 10.7326/0003-4819-157-6-201209180-00003. PMID: 22986377
    8. Hallowell RW, Reed RM, Fraig M, Horton MR, Girgis RE. Severe pulmonary hypertension in idiopathic nonspecific interstitial pneumonia. Pulm Circ. 2012 Jan-Mar;2(1):101-6. doi: 10.4103/2045-8932.94842. PMID: 22558525
    9. Collins SL, Chan-Li Y, Hallowell RW, Powell JD, Horton MR. Pulmonary vaccination as a novel treatment for lung fibrosis. PLoS One. 2012;7(2):e31299. doi: 10.1371/journal.pone.0031299. Epub 2012 Feb 17. PMID: 22363610
    10. Powell JD, Pollizzi KN, Heikamp EB, Horton MR. Regulation of immune responses by mTOR. Annu Rev Immunol. 2012;30:39-68. doi: 10.1146/annurev-immunol-020711-075024. Epub 2011 Nov 29. Review. PMID: 22136167
  • Academic Affiliations & Courses +
  • Activities & Honors +
  • Videos & Media +
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