Biomaterial Database

Decreases in regional cerebral blood flow with normal aging. 1991

A J Martin, and K J Friston, and J G Colebatch, and R S Frackowiak

MRC Cyclotron Unit, Hammersmith Hospital, London, U.K.

Positron emission tomographic (PET) images of regional cerebral blood flow (rCBF) from 30 normal, resting volunteers aged 30 to 85 years were analysed to identify areas where rCBF fell with age. Images were anatomically normalised, and a pixel-by-pixel linear regression was performed to remove differences in global CBF between subjects. Pixels at which rCBF then showed a significant (p less than 0.01) negative correlation with age were identified. They were displayed as a statistical parametric map (SPM) of correlations. We demonstrate an age-related decrease in adjusted rCBF in the cingulate, parahippocampal, superior temporal, medial frontal, and posterior parietal cortices bilaterally, and in the left insular and left posterior prefrontal cortices (omnibus significance, chi 2 = 2,291, p less than 0.0001, df = 1). Decreases in rCBF suggest a regionally specific loss of cerebral function with age. The affected areas were all limbic, or association, cortices. Therefore, these decreases may constitute the cerebral substrate of the cognitive changes that occur during normal aging.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010296	Parietal Lobe	Upper central part of the cerebral hemisphere. It is located posterior to central sulcus, anterior to the OCCIPITAL LOBE, and superior to the TEMPORAL LOBES.	Brodmann Area 39,Brodmann Area 40,Brodmann Area 5,Brodmann Area 7,Brodmann's Area 39,Brodmann's Area 40,Brodmann's Area 5,Brodmann's Area 7,Inferior Parietal Cortex,Secondary Sensorimotor Cortex,Superior Parietal Lobule,Angular Gyrus,Gyrus Angularis,Gyrus Supramarginalis,Intraparietal Sulcus,Marginal Sulcus,Parietal Cortex,Parietal Lobule,Parietal Region,Posterior Paracentral Lobule,Posterior Parietal Cortex,Praecuneus,Precuneus,Precuneus Cortex,Prelunate Gyrus,Supramarginal Gyrus,Area 39, Brodmann,Area 39, Brodmann's,Area 40, Brodmann,Area 40, Brodmann's,Area 5, Brodmann,Area 5, Brodmann's,Area 7, Brodmann,Area 7, Brodmann's,Brodmanns Area 39,Brodmanns Area 40,Brodmanns Area 5,Brodmanns Area 7,Cortex, Inferior Parietal,Cortex, Parietal,Cortex, Posterior Parietal,Cortex, Precuneus,Cortex, Secondary Sensorimotor,Cortices, Inferior Parietal,Gyrus, Angular,Gyrus, Prelunate,Gyrus, Supramarginal,Inferior Parietal Cortices,Lobe, Parietal,Lobule, Parietal,Lobule, Posterior Paracentral,Lobule, Superior Parietal,Paracentral Lobule, Posterior,Paracentral Lobules, Posterior,Parietal Cortex, Inferior,Parietal Cortex, Posterior,Parietal Cortices,Parietal Cortices, Inferior,Parietal Cortices, Posterior,Parietal Lobes,Parietal Lobule, Superior,Parietal Lobules,Parietal Lobules, Superior,Parietal Regions,Posterior Paracentral Lobules,Posterior Parietal Cortices,Precuneus Cortices,Region, Parietal,Secondary Sensorimotor Cortices,Sensorimotor Cortex, Secondary,Superior Parietal Lobules
D001783	Blood Flow Velocity	A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.	Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D002560	Cerebrovascular Circulation	The circulation of blood through the BLOOD VESSELS of the BRAIN.	Brain Blood Flow,Regional Cerebral Blood Flow,Cerebral Blood Flow,Cerebral Circulation,Cerebral Perfusion Pressure,Circulation, Cerebrovascular,Blood Flow, Brain,Blood Flow, Cerebral,Brain Blood Flows,Cerebral Blood Flows,Cerebral Circulations,Cerebral Perfusion Pressures,Circulation, Cerebral,Flow, Brain Blood,Flow, Cerebral Blood,Perfusion Pressure, Cerebral,Pressure, Cerebral Perfusion
D005260	Female		Females
D005625	Frontal Lobe	The part of the cerebral hemisphere anterior to the central sulcus, and anterior and superior to the lateral sulcus.	Brodmann Area 8,Brodmann's Area 8,Frontal Cortex,Frontal Eye Fields,Lobus Frontalis,Supplementary Eye Field,Area 8, Brodmann,Area 8, Brodmann's,Brodmanns Area 8,Cortex, Frontal,Eye Field, Frontal,Eye Field, Supplementary,Eye Fields, Frontal,Frontal Cortices,Frontal Eye Field,Frontal Lobes,Lobe, Frontal,Supplementary Eye Fields
D006179	Gyrus Cinguli	One of the convolutions on the medial surface of the CEREBRAL HEMISPHERES. It surrounds the rostral part of the brain and CORPUS CALLOSUM and forms part of the LIMBIC SYSTEM.	Anterior Cingulate Gyrus,Brodmann Area 23,Brodmann Area 24,Brodmann Area 26,Brodmann Area 29,Brodmann Area 30,Brodmann Area 31,Brodmann Area 32,Brodmann Area 33,Brodmann's Area 23,Brodmann's Area 24,Brodmann's Area 26,Brodmann's Area 29,Brodmann's Area 30,Brodmann's Area 31,Brodmann's Area 32,Brodmann's Area 33,Cingulate Gyrus,Gyrus Cinguli Anterior,Retrosplenial Complex,Retrosplenial Cortex,Anterior Cingulate,Anterior Cingulate Cortex,Cingular Gyrus,Cingulate Area,Cingulate Body,Cingulate Cortex,Cingulate Region,Gyrus, Cingulate,Posterior Cingulate,Posterior Cingulate Cortex,Posterior Cingulate Gyri,Posterior Cingulate Gyrus,Posterior Cingulate Region,Superior Mesial Regions,24, Brodmann Area,Anterior Cingulate Cortices,Anterior Cingulates,Anterior, Gyrus Cinguli,Anteriors, Gyrus Cinguli,Area 23, Brodmann,Area 23, Brodmann's,Area 24, Brodmann,Area 24, Brodmann's,Area 26, Brodmann,Area 26, Brodmann's,Area 29, Brodmann,Area 29, Brodmann's,Area 30, Brodmann,Area 30, Brodmann's,Area 31, Brodmann,Area 31, Brodmann's,Area 32, Brodmann,Area 32, Brodmann's,Area 33, Brodmann,Area 33, Brodmann's,Area, Cingulate,Body, Cingulate,Brodmanns Area 23,Brodmanns Area 24,Brodmanns Area 26,Brodmanns Area 29,Brodmanns Area 30,Brodmanns Area 31,Brodmanns Area 32,Brodmanns Area 33,Cingulate Areas,Cingulate Bodies,Cingulate Cortex, Anterior,Cingulate Cortex, Posterior,Cingulate Gyrus, Anterior,Cingulate Gyrus, Posterior,Cingulate Region, Posterior,Cingulate Regions,Cingulate, Anterior,Cingulate, Posterior,Cinguli Anterior, Gyrus,Cinguli Anteriors, Gyrus,Complex, Retrosplenial,Cortex, Anterior Cingulate,Cortex, Cingulate,Cortex, Posterior Cingulate,Cortex, Retrosplenial,Gyrus Cinguli Anteriors,Gyrus, Anterior Cingulate,Gyrus, Cingular,Gyrus, Posterior Cingulate,Posterior Cingulate Cortices,Posterior Cingulate Regions,Posterior Cingulates,Region, Cingulate,Region, Posterior Cingulate,Retrosplenial Complices,Retrosplenial Cortices,Superior Mesial Region
D006624	Hippocampus	A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation.	Ammon Horn,Cornu Ammonis,Hippocampal Formation,Subiculum,Ammon's Horn,Hippocampus Proper,Ammons Horn,Formation, Hippocampal,Formations, Hippocampal,Hippocampal Formations,Hippocampus Propers,Horn, Ammon,Horn, Ammon's,Proper, Hippocampus,Propers, Hippocampus,Subiculums
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man