Pulmonary Function, Cognitive Impairment and Brain Atrophy in a Middle-Aged Community Sample

Objective: To determine the relationship of lung function to brain anatomical parameters and cognitive function and to examine the mediating factors for any relationships. Methods: A random sub-sample of 469 persons (men = 252) aged 60–64 years from a larger community sample underwent brain magnetic...

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Veröffentlicht in:Dementia and geriatric cognitive disorders 2006-01, Vol.21 (5-6), p.300-308
Hauptverfasser: Sachdev, P.S., Anstey, K.J., Parslow, R.A., Wen, W., Maller, J., Kumar, R., Christensen, H., Jorm, A.F.
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container_end_page 308
container_issue 5-6
container_start_page 300
container_title Dementia and geriatric cognitive disorders
container_volume 21
creator Sachdev, P.S.
Anstey, K.J.
Parslow, R.A.
Wen, W.
Maller, J.
Kumar, R.
Christensen, H.
Jorm, A.F.
description Objective: To determine the relationship of lung function to brain anatomical parameters and cognitive function and to examine the mediating factors for any relationships. Methods: A random sub-sample of 469 persons (men = 252) aged 60–64 years from a larger community sample underwent brain magnetic resonance imaging scans and pulmonary function tests (forced vital capacity, FVC, forced expiratory volume in the first second, FEV 1 ). Subjects were assessed for global cognitive function, episodic memory, working memory, information processing speed, fine motor dexterity and grip strength. The magnetic resonance imaging scans were analysed for overall brain atrophy, subcortical atrophy (ventricle-to-brain ratio, VBR), hippocampal volume, and white matter hyperintensity (WMH) volume. Results: FEV 1 had a significant negative correlation with overall brain atrophy and VBR in men. The FEV 1 /FVC ratio had a significant correlation with WMHs in both men and women. In regression models that controlled for sex, age, height, level of activity, smoking, chronic respiratory disease and education, FEV 1 and FVC were significant predictors of VBR but no other structural brain measure. Pulmonary function was also significantly related to information processing speed and fine motor dexterity. Male subjects with chronic respiratory disease had more deep WMHs. Path analyses to examine if structural measures mediated between lung function and cognition, and whether markers of inflammation and oxidative stress or cortisol mediated between lung function and brain measures were negative. Conclusions: Decreased lung function is related to poorer cognitive function and increased subcortical atrophy in mid-adult life. Presence of chronic respiratory disease may be related to deep WMHs in men.
doi_str_mv 10.1159/000091438
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Methods: A random sub-sample of 469 persons (men = 252) aged 60–64 years from a larger community sample underwent brain magnetic resonance imaging scans and pulmonary function tests (forced vital capacity, FVC, forced expiratory volume in the first second, FEV 1 ). Subjects were assessed for global cognitive function, episodic memory, working memory, information processing speed, fine motor dexterity and grip strength. The magnetic resonance imaging scans were analysed for overall brain atrophy, subcortical atrophy (ventricle-to-brain ratio, VBR), hippocampal volume, and white matter hyperintensity (WMH) volume. Results: FEV 1 had a significant negative correlation with overall brain atrophy and VBR in men. The FEV 1 /FVC ratio had a significant correlation with WMHs in both men and women. In regression models that controlled for sex, age, height, level of activity, smoking, chronic respiratory disease and education, FEV 1 and FVC were significant predictors of VBR but no other structural brain measure. Pulmonary function was also significantly related to information processing speed and fine motor dexterity. Male subjects with chronic respiratory disease had more deep WMHs. Path analyses to examine if structural measures mediated between lung function and cognition, and whether markers of inflammation and oxidative stress or cortisol mediated between lung function and brain measures were negative. Conclusions: Decreased lung function is related to poorer cognitive function and increased subcortical atrophy in mid-adult life. Presence of chronic respiratory disease may be related to deep WMHs in men.</description><identifier>ISSN: 1420-8008</identifier><identifier>EISSN: 1421-9824</identifier><identifier>DOI: 10.1159/000091438</identifier><identifier>PMID: 16484809</identifier><identifier>CODEN: DGCDFX</identifier><language>eng</language><publisher>Basel, Switzerland: Karger</publisher><subject>Atrophy - pathology ; Biological and medical sciences ; Brain - anatomy &amp; histology ; Brain - pathology ; C-Reactive Protein - physiology ; Cognition Disorders - diagnosis ; Cognition Disorders - epidemiology ; Cognition Disorders - etiology ; Cross-Sectional Studies ; Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases ; Female ; Follow-Up Studies ; Humans ; Injuries of the nervous system and the skull. Diseases due to physical agents ; Investigative techniques, diagnostic techniques (general aspects) ; Lung Diseases - diagnosis ; Lung Diseases - epidemiology ; Lung Diseases - physiopathology ; Magnetic Resonance Imaging ; Male ; Medical sciences ; Middle Aged ; Nervous system ; Neurology ; Neuropsychological Tests ; Original Research Article ; Prevalence ; Respiratory Function Tests ; Severity of Illness Index ; Traumas. Diseases due to physical agents ; Ultrasonic investigative techniques</subject><ispartof>Dementia and geriatric cognitive disorders, 2006-01, Vol.21 (5-6), p.300-308</ispartof><rights>2006 S. Karger AG, Basel</rights><rights>2007 INIST-CNRS</rights><rights>Copyright (c) 2006 S. Karger AG, Basel.</rights><rights>Copyright (c) 2006 S. 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Methods: A random sub-sample of 469 persons (men = 252) aged 60–64 years from a larger community sample underwent brain magnetic resonance imaging scans and pulmonary function tests (forced vital capacity, FVC, forced expiratory volume in the first second, FEV 1 ). Subjects were assessed for global cognitive function, episodic memory, working memory, information processing speed, fine motor dexterity and grip strength. The magnetic resonance imaging scans were analysed for overall brain atrophy, subcortical atrophy (ventricle-to-brain ratio, VBR), hippocampal volume, and white matter hyperintensity (WMH) volume. Results: FEV 1 had a significant negative correlation with overall brain atrophy and VBR in men. The FEV 1 /FVC ratio had a significant correlation with WMHs in both men and women. In regression models that controlled for sex, age, height, level of activity, smoking, chronic respiratory disease and education, FEV 1 and FVC were significant predictors of VBR but no other structural brain measure. Pulmonary function was also significantly related to information processing speed and fine motor dexterity. Male subjects with chronic respiratory disease had more deep WMHs. Path analyses to examine if structural measures mediated between lung function and cognition, and whether markers of inflammation and oxidative stress or cortisol mediated between lung function and brain measures were negative. Conclusions: Decreased lung function is related to poorer cognitive function and increased subcortical atrophy in mid-adult life. Presence of chronic respiratory disease may be related to deep WMHs in men.</description><subject>Atrophy - pathology</subject><subject>Biological and medical sciences</subject><subject>Brain - anatomy &amp; histology</subject><subject>Brain - pathology</subject><subject>C-Reactive Protein - physiology</subject><subject>Cognition Disorders - diagnosis</subject><subject>Cognition Disorders - epidemiology</subject><subject>Cognition Disorders - etiology</subject><subject>Cross-Sectional Studies</subject><subject>Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases</subject><subject>Female</subject><subject>Follow-Up Studies</subject><subject>Humans</subject><subject>Injuries of the nervous system and the skull. 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Methods: A random sub-sample of 469 persons (men = 252) aged 60–64 years from a larger community sample underwent brain magnetic resonance imaging scans and pulmonary function tests (forced vital capacity, FVC, forced expiratory volume in the first second, FEV 1 ). Subjects were assessed for global cognitive function, episodic memory, working memory, information processing speed, fine motor dexterity and grip strength. The magnetic resonance imaging scans were analysed for overall brain atrophy, subcortical atrophy (ventricle-to-brain ratio, VBR), hippocampal volume, and white matter hyperintensity (WMH) volume. Results: FEV 1 had a significant negative correlation with overall brain atrophy and VBR in men. The FEV 1 /FVC ratio had a significant correlation with WMHs in both men and women. In regression models that controlled for sex, age, height, level of activity, smoking, chronic respiratory disease and education, FEV 1 and FVC were significant predictors of VBR but no other structural brain measure. Pulmonary function was also significantly related to information processing speed and fine motor dexterity. Male subjects with chronic respiratory disease had more deep WMHs. Path analyses to examine if structural measures mediated between lung function and cognition, and whether markers of inflammation and oxidative stress or cortisol mediated between lung function and brain measures were negative. Conclusions: Decreased lung function is related to poorer cognitive function and increased subcortical atrophy in mid-adult life. Presence of chronic respiratory disease may be related to deep WMHs in men.</abstract><cop>Basel, Switzerland</cop><pub>Karger</pub><pmid>16484809</pmid><doi>10.1159/000091438</doi><tpages>9</tpages></addata></record>
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subjects Atrophy - pathology
Biological and medical sciences
Brain - anatomy & histology
Brain - pathology
C-Reactive Protein - physiology
Cognition Disorders - diagnosis
Cognition Disorders - epidemiology
Cognition Disorders - etiology
Cross-Sectional Studies
Degenerative and inherited degenerative diseases of the nervous system. Leukodystrophies. Prion diseases
Female
Follow-Up Studies
Humans
Injuries of the nervous system and the skull. Diseases due to physical agents
Investigative techniques, diagnostic techniques (general aspects)
Lung Diseases - diagnosis
Lung Diseases - epidemiology
Lung Diseases - physiopathology
Magnetic Resonance Imaging
Male
Medical sciences
Middle Aged
Nervous system
Neurology
Neuropsychological Tests
Original Research Article
Prevalence
Respiratory Function Tests
Severity of Illness Index
Traumas. Diseases due to physical agents
Ultrasonic investigative techniques
title Pulmonary Function, Cognitive Impairment and Brain Atrophy in a Middle-Aged Community Sample
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