Components of the choline oxidation pathway modify the association between the apolipoprotein ε4 gene variant and cognitive decline in patients with dementia

[Display omitted] •One-carbon metabolism and the APOEε4 allele variant could interact in dementia.•This potential interaction has not been addressed in prognostic dementia studies.•We measured metabolites in sera in a longitudinal study on cognition in dementia.•Choline oxidation metabolites seem to...

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Veröffentlicht in:Brain research 2020-01, Vol.1726, p.146519-146519, Article 146519
Hauptverfasser: Hildre, Audun Skjaerseth, Solvang, Stein-Erik Hafstad, Aarsland, Dag, Midtun, Øivind, McCann, Adrian, Ervik, Arne Olav, Nygård, Ottar, Ueland, Per Magne, Nordrehaug, Jan Erik, Giil, Lasse Melvaer
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container_title Brain research
container_volume 1726
creator Hildre, Audun Skjaerseth
Solvang, Stein-Erik Hafstad
Aarsland, Dag
Midtun, Øivind
McCann, Adrian
Ervik, Arne Olav
Nygård, Ottar
Ueland, Per Magne
Nordrehaug, Jan Erik
Giil, Lasse Melvaer
description [Display omitted] •One-carbon metabolism and the APOEε4 allele variant could interact in dementia.•This potential interaction has not been addressed in prognostic dementia studies.•We measured metabolites in sera in a longitudinal study on cognition in dementia.•Choline oxidation metabolites seem to improve cognitive prognosis in APOEε4 carriers.•In comparison, they may be detrimental to cognitive prognosis in non-carriers. Metabolites involved in one-carbon metabolism (OCM) may predict cognitive prognosis in dementia. The link between OCM, apolipoprotein E (APOE), and DNA methylation creates a biologically plausible mechanism of interaction. To assess OCM metabolites as predictors of 5-year cognitive prognosis in patients with mild dementia, and in subgroups defined by the APOEε4 allele variant. We followed one-hundred and fifty-two patients with mild dementia (86 with Alzheimer’s disease, 66 with Lewy body dementia, including 90 with at least one APOEε4 allele) for 5 years with annual Mini-Mental State Examinations (MMSE). Total homocysteine, methionine, choline, betaine, dimethylglycine, sarcosine, folate, cobalamin and pyridoxal 5′-phoshate were measured in serum at baseline. We used linear mixed models to assess metabolite-MMSE associations, including 3-way interactions between metabolites, time, and APOEε4. False-discovery rate adjusted p-values (Q-values) are reported. Metabolite concentrations were not different in patients with dementia according to the presence of APOEε4. Overall, serum concentration of total homocysteine was inversely associated with MMSE performance, while betaine was positively associated with MMSE (Q 
doi_str_mv 10.1016/j.brainres.2019.146519
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Metabolites involved in one-carbon metabolism (OCM) may predict cognitive prognosis in dementia. The link between OCM, apolipoprotein E (APOE), and DNA methylation creates a biologically plausible mechanism of interaction. To assess OCM metabolites as predictors of 5-year cognitive prognosis in patients with mild dementia, and in subgroups defined by the APOEε4 allele variant. We followed one-hundred and fifty-two patients with mild dementia (86 with Alzheimer’s disease, 66 with Lewy body dementia, including 90 with at least one APOEε4 allele) for 5 years with annual Mini-Mental State Examinations (MMSE). Total homocysteine, methionine, choline, betaine, dimethylglycine, sarcosine, folate, cobalamin and pyridoxal 5′-phoshate were measured in serum at baseline. We used linear mixed models to assess metabolite-MMSE associations, including 3-way interactions between metabolites, time, and APOEε4. False-discovery rate adjusted p-values (Q-values) are reported. Metabolite concentrations were not different in patients with dementia according to the presence of APOEε4. Overall, serum concentration of total homocysteine was inversely associated with MMSE performance, while betaine was positively associated with MMSE (Q &lt; 0.05), but neither was associated with MMSE decline. Serum concentrations of betaine, dimethylglycine and sarcosine, however, were associated with slower MMSE decline in patients with APOEε4, but with faster MMSE decline in patients without the allele (all 3-way interactions: Q &lt; 0.05). Components of the choline oxidation pathway are associated with a better cognitive prognosis in APOEε4 carriers and a worse cognitive prognosis in non-carriers. Further research investigating targeted metabolic interventions according to APOE allele status is warranted.</description><identifier>ISSN: 0006-8993</identifier><identifier>ISSN: 1872-6240</identifier><identifier>EISSN: 1872-6240</identifier><identifier>DOI: 10.1016/j.brainres.2019.146519</identifier><identifier>PMID: 31654640</identifier><language>eng</language><publisher>Netherlands: Elsevier B.V</publisher><subject>Aged ; Alzheimer Disease - diagnosis ; Alzheimer Disease - genetics ; Alzheimer Disease - metabolism ; Alzheimer’s disease ; APOE ; APOE4 ; APOE4ε4 ; Apolipoprotein E ; Apolipoprotein E4 - genetics ; Betaine ; Choline - metabolism ; Choline oxidation ; Cognitive decline ; Cognitive Dysfunction - diagnosis ; Cognitive Dysfunction - genetics ; Cognitive Dysfunction - metabolism ; Dementia ; Dementia - diagnosis ; Dementia - genetics ; Dementia - metabolism ; Dimethylglycine ; Effect modification ; Female ; Humans ; Interaction ; Lewy body dementia ; Lewy Body Disease - diagnosis ; Lewy Body Disease - genetics ; Lewy Body Disease - metabolism ; Male ; Medicin och hälsovetenskap ; Mini-mental state examination ; MMSE-decline ; Prognosis</subject><ispartof>Brain research, 2020-01, Vol.1726, p.146519-146519, Article 146519</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright © 2019 Elsevier B.V. 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Metabolites involved in one-carbon metabolism (OCM) may predict cognitive prognosis in dementia. The link between OCM, apolipoprotein E (APOE), and DNA methylation creates a biologically plausible mechanism of interaction. To assess OCM metabolites as predictors of 5-year cognitive prognosis in patients with mild dementia, and in subgroups defined by the APOEε4 allele variant. We followed one-hundred and fifty-two patients with mild dementia (86 with Alzheimer’s disease, 66 with Lewy body dementia, including 90 with at least one APOEε4 allele) for 5 years with annual Mini-Mental State Examinations (MMSE). Total homocysteine, methionine, choline, betaine, dimethylglycine, sarcosine, folate, cobalamin and pyridoxal 5′-phoshate were measured in serum at baseline. We used linear mixed models to assess metabolite-MMSE associations, including 3-way interactions between metabolites, time, and APOEε4. False-discovery rate adjusted p-values (Q-values) are reported. Metabolite concentrations were not different in patients with dementia according to the presence of APOEε4. Overall, serum concentration of total homocysteine was inversely associated with MMSE performance, while betaine was positively associated with MMSE (Q &lt; 0.05), but neither was associated with MMSE decline. Serum concentrations of betaine, dimethylglycine and sarcosine, however, were associated with slower MMSE decline in patients with APOEε4, but with faster MMSE decline in patients without the allele (all 3-way interactions: Q &lt; 0.05). Components of the choline oxidation pathway are associated with a better cognitive prognosis in APOEε4 carriers and a worse cognitive prognosis in non-carriers. 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Metabolites involved in one-carbon metabolism (OCM) may predict cognitive prognosis in dementia. The link between OCM, apolipoprotein E (APOE), and DNA methylation creates a biologically plausible mechanism of interaction. To assess OCM metabolites as predictors of 5-year cognitive prognosis in patients with mild dementia, and in subgroups defined by the APOEε4 allele variant. We followed one-hundred and fifty-two patients with mild dementia (86 with Alzheimer’s disease, 66 with Lewy body dementia, including 90 with at least one APOEε4 allele) for 5 years with annual Mini-Mental State Examinations (MMSE). Total homocysteine, methionine, choline, betaine, dimethylglycine, sarcosine, folate, cobalamin and pyridoxal 5′-phoshate were measured in serum at baseline. We used linear mixed models to assess metabolite-MMSE associations, including 3-way interactions between metabolites, time, and APOEε4. False-discovery rate adjusted p-values (Q-values) are reported. Metabolite concentrations were not different in patients with dementia according to the presence of APOEε4. Overall, serum concentration of total homocysteine was inversely associated with MMSE performance, while betaine was positively associated with MMSE (Q &lt; 0.05), but neither was associated with MMSE decline. Serum concentrations of betaine, dimethylglycine and sarcosine, however, were associated with slower MMSE decline in patients with APOEε4, but with faster MMSE decline in patients without the allele (all 3-way interactions: Q &lt; 0.05). Components of the choline oxidation pathway are associated with a better cognitive prognosis in APOEε4 carriers and a worse cognitive prognosis in non-carriers. Further research investigating targeted metabolic interventions according to APOE allele status is warranted.</abstract><cop>Netherlands</cop><pub>Elsevier B.V</pub><pmid>31654640</pmid><doi>10.1016/j.brainres.2019.146519</doi><tpages>1</tpages></addata></record>
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subjects Aged
Alzheimer Disease - diagnosis
Alzheimer Disease - genetics
Alzheimer Disease - metabolism
Alzheimer’s disease
APOE
APOE4
APOE4ε4
Apolipoprotein E
Apolipoprotein E4 - genetics
Betaine
Choline - metabolism
Choline oxidation
Cognitive decline
Cognitive Dysfunction - diagnosis
Cognitive Dysfunction - genetics
Cognitive Dysfunction - metabolism
Dementia
Dementia - diagnosis
Dementia - genetics
Dementia - metabolism
Dimethylglycine
Effect modification
Female
Humans
Interaction
Lewy body dementia
Lewy Body Disease - diagnosis
Lewy Body Disease - genetics
Lewy Body Disease - metabolism
Male
Medicin och hälsovetenskap
Mini-mental state examination
MMSE-decline
Prognosis
title Components of the choline oxidation pathway modify the association between the apolipoprotein ε4 gene variant and cognitive decline in patients with dementia
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