title: Effect of local and remote ischemic preconditioning on endothelial function in young people and healthy or hypertensive elderly people.
abstract: To verify whether age affects remote preconditioning, we compared healthy young people (mean age = 28.0 years, SD: 7.2), healthy elderly people (age = 69.2 years, SD: 5.0), and hypertensive elderly people (group 3, age = 72.8 years, SD: 3.9). Each group included 10 participants. The flow-mediated-dilation (FMD) was measured after local (same arm) and remote (leg) ischemic preconditioning. Healthy elderly people had the greatest increase of FMD after ischemic preconditioning compared to baseline (173% after local and 181% after remote preconditioning) and young participants the smallest increase (77% after local and 69% after remote preconditioning) while hypertensive elderly had an intermediate increase (P for comparison across groups: 0.347 for local and 0.064 for remote preconditioning). However, absolute values of FMD after preconditioning were much lower in elderly hypertensive than in healthy young adults. Remote preconditioning increases endothelial reactivity in healthy and hypertensive elderly. The potential clinical relevance of this finding deserves consideration.
authors.affiliation: Area di Geriatria, Università Campus Biomedico, Roma, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Moro
authors.forename: C
authors.initials: C
authors.lastname: Pedone
authors.forename: A
authors.initials: A
authors.lastname: Mondì
authors.forename: E
authors.initials: E
authors.lastname: Nunziata
authors.forename: R
authors.initials: R
authors.lastname: Antonelli Incalzi
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D001916:Brachial Artery / Q000000981:diagnostic imaging / Q000503:physiopathology*; D004730:Endothelium, Vascular / Q000000981:diagnostic imaging / Q000503:physiopathology*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000503:physiopathology*; D019194:Ischemic Preconditioning / Q000379:methods*; D035002:Lower Extremity / Q000098:blood supply*; D008297:Male; D008875:Middle Aged; D012039:Regional Blood Flow; D012494:Sampling Studies; D014463:Ultrasonography; D034941:Upper Extremity / Q000098:blood supply*; D014664:Vasodilation; D055815:Young Adult