Ihab Hajjar
Overview
Dr. Hajjar is an internist and a geriatrician in the Emory University Department of Medicine, Division of General Medicine and Geriatrics. He completed his MD at the American University of Beirut and his internal medicine residency at the Cleveland Clinic Foundation. He also completed a two-year fellowship in geriatrics at the Medical College of Wisconsin. After completing his training, he served on the faculty at University of South Carolina until 2006. He then moved to Harvard Medical School, where he was an assistant professor of medicine and associate director of the CV Research Lab. He moved to the University of Southern California in 2011, and then to Emory in 2013. His research is focused on the link between hypertension and vascular disease with brain health including cognitive performance, cerebrovascular function. In particular, he is studying the effects of antihypertensive medications that modulate the renin angiotensin system on both prevention of cognitive decline and as potential therapeutic modalities for early dementia. Dr. Hajjar has published more than 50 scientific articles and book chapters and has been funded by grants from National Institute of Health and other governmental and private organizations since 2001. Dr. Hajjar sees patients with cognitive disorders and/or vascular risk factors at the Memory Disorder Clinic at the Emory clinic and is the medical director of the Integrated Memory Care Clinic (IMCC) at Emory.
Academic Appointment
- Associate Professor of Medicine, Medicine - General Medicine and Geriatrics, Emory University
Research
Publications
-
Neuromark PET: A multivariate method for estimating whole brain fMRI guided intrinsic networks and connectomes from fMRI and PET data.
bioRxiv
01/15/2025 Authors: Saha DK; Bohsali A; Saha R; Hajjar I; Calhoun VD -
Clinical Manifestations.
Alzheimers Dement Volume: 20 Suppl 3 Page(s): e089637
12/01/2024 Authors: Walker TA; Elchommali J; Han JE; Truong A; Hajjar I; Goldstein F -
Technology literacy and access to digital resources for remote assessment among adults enrolled in Alzheimer's disease research.
J Alzheimers Dis Volume: 102 Page(s): 1286 - 1296
12/01/2024 Authors: Okafor M; Yang Z; Vickers KL; Sanders K; Simama N; Hewitt KC; Lah J; Levey AI; Goldstein FC; Hajjar I -
Author Correction: APOE4 impairs myelination via cholesterol dysregulation in oligodendrocytes.
Nature Volume: 636 Page(s): E9
12/01/2024 Authors: Blanchard JW; Akay LA; Davila-Velderrain J; von Maydell D; Mathys H; Davidson SM; Effenberger A; Chen C-Y; Maner-Smith K; Hajjar I -
Associations Between High-Density Lipoprotein Cholesterol Efflux and Brain Grey Matter Volume.
J Clin Med Volume: 13
10/18/2024 Authors: Giacona JM; Wang J; Zhang R; Kelley BJ; Hajjar I; Thomas BP; Yu FF; de Lemos JA; Rohatgi A; Vongpatanasin W -
High-Sensitivity Troponin T, NT-proBNP, and Cognitive Outcomes in SPRINT.
Hypertension Volume: 81 Page(s): 1956 - 1965
09/01/2024 Authors: Haney D; Ma Y; Dalmacy D; Pajewski NM; Hajjar I; de Lemos JA; Zhang W; Soliman EZ; Ballantyne CM; Nambi V -
Lower Prevalence of Asymptomatic Alzheimer's Disease Among Healthy African Americans.
Ann Neurol Volume: 96 Page(s): 463 - 475
09/01/2024 Authors: Lah JJ; Tian G; Risk BB; Hanfelt JJ; Wang L; Zhao L; Hales CM; Johnson ECB; Elmor MB; Malakauskas SJ -
Characterization of African-American Super-Agers in the National Alzheimer's Coordinating Center cohort.
J Am Geriatr Soc Volume: 72 Page(s): 1995 - 2005
07/01/2024 Authors: Trammell AR; Goldstein FC; Parker MW; Hajjar IM -
Contribution of Peripheral Microvascular Dysfunction to Mild Cognitive Impairment.
Am J Cardiol Volume: 218 Page(s): 4 - 6
05/01/2024 Authors: Gold ME; Rogers SC; Kulshreshtha A; Chen Y; Ko Y-A; Cheng ML; Gold DA; Vatsa N; Jain V; Desai S -
Integrative brain omics approach reveals key role for sn-1 lysophosphatidylethanolamine in Alzheimer's dementia.
02/27/2024 Authors: Ortlund E; Chen C-Y; Maner-Smith K; Khadka M; Ahn J; Gulbin X; Ivanova A; Dammer E; Seyfried N; Bennett D