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Associations between cerebral small-vessel disease and Alzheimer disease pathology as measured by cerebrospinal fluid biomarkers.
JAMA Neurol. 2014 Jul 01; 71(7):855-62.JN

Abstract

IMPORTANCE

It remains unclear if and how associations between cerebral small-vessel disease and Alzheimer disease (AD) pathology lead to cognitive decline and dementia.

OBJECTIVE

To determine associations between small-vessel disease and AD pathology.

DESIGN, SETTING, AND PARTICIPANTS

Cross-sectional study from January 2002 to December 2012 using the memory clinic-based Amsterdam Dementia Cohort. The study included 914 consecutive patients with available cerebrospinal fluid (CSF) and magnetic resonance imaging; 547 were patients diagnosed as having AD (54% female, mean [SD], 67 [8]; Mini-Mental State Examination score, mean [SD], 21 [5]), 30 were patients diagnosed as having vascular dementia (37% female, mean [SD], 76 [9]; Mini-Mental State Examination score, mean [SD], 24 [4]), and 337 were control participants with subjective memory complaints (42% female, mean [SD], 59 [59]; Mini-Mental State Examination score, mean [SD], 28 [2]). Linear regressions were performed with CSF biomarkers (log transformed) as dependent variables and magnetic resonance imaging measures (dichotomized) as independent, adjusted for sex, age, mediotemporal lobe atrophy, and diagnosis. An interaction term for diagnosis by magnetic resonance imaging measures was used for estimates per diagnostic group.

MAIN OUTCOMES AND MEASURES

We examined the associations of magnetic resonance imaging white matter hyperintensities (WMH), lacunes, microbleeds with CSF β-amyloid 42 (Aβ42), total tau, and tau phosphorylated at threonine 181 (P-tau181) as well as for a subset of apolipoprotein E (APOE) ε4 carriers and noncarriers.

RESULTS

Microbleed presence was associated with lower CSF Aβ42 in AD and vascular dementia (standardized beta = -0.09, P = .003; standardized beta = -0.30, P = .01), and higher CSF tau in controls (standardized beta = 0.10, P = .03). There were no effects for P-tau181. The presence of WMH was associated with lower Aβ42 in control participants and patients with vascular dementia (standardized beta = -0.18, P = .002; standardized beta = -0.32, P = .02) but not in patients with AD. There were no effects for tau or P-tau181. The presence of lacunes was associated with higher Aβ42 in vascular dementia (standardized beta = 0.17, P = .07) and lower tau in AD (standardized beta = -0.07, P = .05) but there were no effects for Aβ42 or P-tau181. Stratification for apolipoprotein E genotype revealed that these effects were mostly attributable to ε4 carriers.

CONCLUSIONS AND RELEVANCE

Deposition of amyloid appears aggravated in patients with cerebral small-vessel disease, especially in apolipoprotein E ε4 carriers, providing evidence for pathophysiological synergy between these 3 biological factors.

Authors+Show Affiliations

Alzheimer Center, Department of Neurology, VU University Medical Center, Amsterdam, the Netherlands.Alzheimer Center, Department of Neurology, VU University Medical Center, Amsterdam, the Netherlands.Department of Clinical Chemistry, VU University Medical Center, Amsterdam, the Netherlands.Alzheimer Center, Department of Neurology, VU University Medical Center, Amsterdam, the Netherlands.Alzheimer Center, Department of Neurology, VU University Medical Center, Amsterdam, the Netherlands.Department of Radiology, VU University Medical Center, Amsterdam, the Netherlands.Department of Radiology, VU University Medical Center, Amsterdam, the Netherlands.Alzheimer Center, Department of Neurology, VU University Medical Center, Amsterdam, the Netherlands.Alzheimer Center, Department of Neurology, VU University Medical Center, Amsterdam, the Netherlands4Department of Epidemiology and Biostatistics, VU University Medical Center, Amsterdam, the Netherlands.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24818585

Citation

Kester, Maartje I., et al. "Associations Between Cerebral Small-vessel Disease and Alzheimer Disease Pathology as Measured By Cerebrospinal Fluid Biomarkers." JAMA Neurology, vol. 71, no. 7, 2014, pp. 855-62.
Kester MI, Goos JD, Teunissen CE, et al. Associations between cerebral small-vessel disease and Alzheimer disease pathology as measured by cerebrospinal fluid biomarkers. JAMA Neurol. 2014;71(7):855-62.
Kester, M. I., Goos, J. D., Teunissen, C. E., Benedictus, M. R., Bouwman, F. H., Wattjes, M. P., Barkhof, F., Scheltens, P., & van der Flier, W. M. (2014). Associations between cerebral small-vessel disease and Alzheimer disease pathology as measured by cerebrospinal fluid biomarkers. JAMA Neurology, 71(7), 855-62. https://doi.org/10.1001/jamaneurol.2014.754
Kester MI, et al. Associations Between Cerebral Small-vessel Disease and Alzheimer Disease Pathology as Measured By Cerebrospinal Fluid Biomarkers. JAMA Neurol. 2014 Jul 1;71(7):855-62. PubMed PMID: 24818585.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Associations between cerebral small-vessel disease and Alzheimer disease pathology as measured by cerebrospinal fluid biomarkers. AU - Kester,Maartje I, AU - Goos,Jeroen D C, AU - Teunissen,Charlotte E, AU - Benedictus,Marije R, AU - Bouwman,Femke H, AU - Wattjes,Mike P, AU - Barkhof,Frederik, AU - Scheltens,Philip, AU - van der Flier,Wiesje M, PY - 2014/5/14/entrez PY - 2014/5/14/pubmed PY - 2014/9/10/medline SP - 855 EP - 62 JF - JAMA neurology JO - JAMA Neurol VL - 71 IS - 7 N2 - IMPORTANCE: It remains unclear if and how associations between cerebral small-vessel disease and Alzheimer disease (AD) pathology lead to cognitive decline and dementia. OBJECTIVE: To determine associations between small-vessel disease and AD pathology. DESIGN, SETTING, AND PARTICIPANTS: Cross-sectional study from January 2002 to December 2012 using the memory clinic-based Amsterdam Dementia Cohort. The study included 914 consecutive patients with available cerebrospinal fluid (CSF) and magnetic resonance imaging; 547 were patients diagnosed as having AD (54% female, mean [SD], 67 [8]; Mini-Mental State Examination score, mean [SD], 21 [5]), 30 were patients diagnosed as having vascular dementia (37% female, mean [SD], 76 [9]; Mini-Mental State Examination score, mean [SD], 24 [4]), and 337 were control participants with subjective memory complaints (42% female, mean [SD], 59 [59]; Mini-Mental State Examination score, mean [SD], 28 [2]). Linear regressions were performed with CSF biomarkers (log transformed) as dependent variables and magnetic resonance imaging measures (dichotomized) as independent, adjusted for sex, age, mediotemporal lobe atrophy, and diagnosis. An interaction term for diagnosis by magnetic resonance imaging measures was used for estimates per diagnostic group. MAIN OUTCOMES AND MEASURES: We examined the associations of magnetic resonance imaging white matter hyperintensities (WMH), lacunes, microbleeds with CSF β-amyloid 42 (Aβ42), total tau, and tau phosphorylated at threonine 181 (P-tau181) as well as for a subset of apolipoprotein E (APOE) ε4 carriers and noncarriers. RESULTS: Microbleed presence was associated with lower CSF Aβ42 in AD and vascular dementia (standardized beta = -0.09, P = .003; standardized beta = -0.30, P = .01), and higher CSF tau in controls (standardized beta = 0.10, P = .03). There were no effects for P-tau181. The presence of WMH was associated with lower Aβ42 in control participants and patients with vascular dementia (standardized beta = -0.18, P = .002; standardized beta = -0.32, P = .02) but not in patients with AD. There were no effects for tau or P-tau181. The presence of lacunes was associated with higher Aβ42 in vascular dementia (standardized beta = 0.17, P = .07) and lower tau in AD (standardized beta = -0.07, P = .05) but there were no effects for Aβ42 or P-tau181. Stratification for apolipoprotein E genotype revealed that these effects were mostly attributable to ε4 carriers. CONCLUSIONS AND RELEVANCE: Deposition of amyloid appears aggravated in patients with cerebral small-vessel disease, especially in apolipoprotein E ε4 carriers, providing evidence for pathophysiological synergy between these 3 biological factors. SN - 2168-6157 UR - https://www.unboundmedicine.com/medline/citation/24818585/Associations_between_cerebral_small_vessel_disease_and_Alzheimer_disease_pathology_as_measured_by_cerebrospinal_fluid_biomarkers_ DB - PRIME DP - Unbound Medicine ER -