Lipoprotein(a) Is Elevated and Inversely Related to Coronary Endothelial Function in People With HIV

Autor: Daniel S. Kikuchi, Yaa A. Kwapong, Michael Schär, Robert G. Weiss, Kevin Sun, Todd T. Brown, Damani A. Piggott, Anum S. Minhas, Gary Gerstenblith, Alborz Soleimani‐Fard, Thorsten M. Leucker, Allison G. Hays
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, Vol 13, Iss 23 (2024)
Druh dokumentu: article
ISSN: 2047-9980
DOI: 10.1161/JAHA.124.035975
Popis: Background HIV‐associated cardiovascular disease (CVD) is increasing in prevalence. The mechanisms underlying the heightened cardiovascular risk faced by people with HIV (PWH), however, remain poorly defined. Recent studies indicate an important role of lipoprotein(a) (Lp[a]) in predicting CVD risk in the general population, but little is known regarding its role in HIV‐associated CVD. Thus, we sought to evaluate whether Lp(a) is elevated in PWH and if it is associated with impaired coronary endothelial function (CEF), a known mediator of CVD in PWH. Methods and Results In this cross‐sectional study, cardiac magnetic resonance imaging with isometric handgrip exercise, an endothelial dependent stressor, was performed to assess CEF in 65 PWH and 52 controls without HIV. Percent changes in coronary cross‐sectional area and coronary blood flow from rest to stress were used to quantify CEF. Lp(a) levels were assessed by immunoturbidimetric assay at the time of magnetic resonance imaging. Lp(a) levels were higher in PWH compared with controls (78 nmol/L [39–137 nmol/L] versus 45.5 nmol/L [18–102.5 nmol/L], P
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