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Clonal Hematopoiesis Is Associated With Higher Risk of Stroke.

TitleClonal Hematopoiesis Is Associated With Higher Risk of Stroke.
Publication TypeJournal Article
Year of Publication2022
AuthorsBhattacharya, R, Zekavat, SM, Haessler, J, Fornage, M, Raffield, L, Uddin, MMesbah, Bick, AG, Niroula, A, Yu, B, Gibson, C, Griffin, G, Morrison, AC, Psaty, BM, Longstreth, WT, Bis, JC, Rich, SS, Rotter, JI, Tracy, RP, Correa, A, Seshadri, S, Johnson, A, Collins, JM, Hayden, KM, Madsen, TE, Ballantyne, CM, Jaiswal, S, Ebert, BL, Kooperberg, C, Manson, JAE, Whitsel, EA, Natarajan, P, Reiner, AP
Corporate/Institutional AuthorsNHLBI Trans-Omics for Precision Medicine Program
JournalStroke
Volume53
Issue3
Pagination788-797
Date Published2022 Mar
ISSN1524-4628
Abstract<p><b>BACKGROUND AND PURPOSE: </b>Clonal hematopoiesis of indeterminate potential (CHIP) is a novel age-related risk factor for cardiovascular disease-related morbidity and mortality. The association of CHIP with risk of incident ischemic stroke was reported previously in an exploratory analysis including a small number of incident stroke cases without replication and lack of stroke subphenotyping. The purpose of this study was to discover whether CHIP is a risk factor for ischemic or hemorrhagic stroke.</p><p><b>METHODS: </b>We utilized plasma genome sequence data of blood DNA to identify CHIP in 78 752 individuals from 8 prospective cohorts and biobanks. We then assessed the association of CHIP and commonly mutated individual CHIP driver genes (, , and ) with any stroke, ischemic stroke, and hemorrhagic stroke.</p><p><b>RESULTS: </b>CHIP was associated with an increased risk of total stroke (hazard ratio, 1.14 [95% CI, 1.03-1.27]; =0.01) after adjustment for age, sex, and race. We observed associations with CHIP with risk of hemorrhagic stroke (hazard ratio, 1.24 [95% CI, 1.01-1.51]; =0.04) and with small vessel ischemic stroke subtypes. In gene-specific association results, showed the strongest association with total stroke and ischemic stroke, whereas and were each associated with increased risk of hemorrhagic stroke.</p><p><b>CONCLUSIONS: </b>CHIP is associated with an increased risk of stroke, particularly with hemorrhagic and small vessel ischemic stroke. Future studies clarifying the relationship between CHIP and subtypes of stroke are needed.</p>
DOI10.1161/STROKEAHA.121.037388
Alternate JournalStroke
PubMed ID34743536
PubMed Central IDPMC8885769
Grant ListR01 HL151283 / HL / NHLBI NIH HHS / United States
R01 HL148565 / HL / NHLBI NIH HHS / United States
R01 HL105756 / HL / NHLBI NIH HHS / United States
T32 HL129982 / HL / NHLBI NIH HHS / United States
R01 HL136574 / HL / NHLBI NIH HHS / United States
R01 HL148050 / HL / NHLBI NIH HHS / United States
ePub date: 
21/11