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Titolo:
Age-related reduction in visually evoked cerebral blood flow responses
Autore:
Niehaus, L; Lehmann, R; Roricht, S; Meyer, BU;
Indirizzi:
Humboldt Univ, Dept Neurol, D-13353 Berlin, Germany Humboldt Univ BerlinGermany D-13353 ept Neurol, D-13353 Berlin, Germany Humboldt Univ, Dept Neuroradiol, Berlin, Germany Humboldt Univ Berlin Germany dt Univ, Dept Neuroradiol, Berlin, Germany
Titolo Testata:
NEUROBIOLOGY OF AGING
fascicolo: 1, volume: 22, anno: 2001,
pagine: 35 - 38
SICI:
0197-4580(200101/02)22:1<35:ARIVEC>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSCRANIAL DOPPLER; VELOCITY; DEPENDENCY; DENSITY; ARTERY; VOLUME;
Keywords:
normal aging; transcranial Doppler sonography; intermittent light stimulation; cerebral blood flow;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Niehaus, L Humboldt Univ, Dept Neurol, Campus Virchow Klinikum,Augustenburger Pl 1, D-13353 Berlin, Germany Humboldt Univ Campus Virchow Klinikum,Augustenburger Pl 1 Berlin Germany D-13353
Citazione:
L. Niehaus et al., "Age-related reduction in visually evoked cerebral blood flow responses", NEUROBIOL A, 22(1), 2001, pp. 35-38

Abstract

The influence of aging on photoreactive flow changes in the posterior cerebral artery (PCA) was investigated in 38 healthy volunteers aged 20-81 pears. Mean blood Row velocity (MBFV) was measured at rest and during 10-Hz photic stimulation by transcranial Doppler sonography. The amplitude of the evoked flow response significantly decreased with age (r = -0.39; P < 0.001). In a group of elderly subjects (60-81 years), the evoked blood Row velocity increase was 10.8 +/- 2.7%, which is less than in young subjects aged 20-39 years (14.7 +/- 4.3%; p = 0.001). We conclude that normal aging affects photoreactive flow changes in the occipital lobe. This may limit the application of Functional. imaging studies based on measurements of blood flow changes in the elderly. (C) 2001 Elsevier Source Inc. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/05/20 alle ore 15:09:30