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Mediterranean Diet, Its Components, and Amyloid Imaging Biomarkers

M. Vassilaki, JA. Aakre, JA. Syrjanen, MM. Mielke, YE. Geda, WK. Kremers, MM. Machulda, RE. Alhurani, SC. Staubo, DS. Knopman, RC. Petersen, VJ. Lowe, CR. Jack, RO. Roberts,

. 2018 ; 64 (1) : 281-290. [pub] -

Jazyk angličtina Země Nizozemsko

Typ dokumentu časopisecké články, Research Support, N.I.H., Extramural, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/bmc19028385

Grantová podpora
R01 AG041851 NIA NIH HHS - United States
R01 AG034676 NIA NIH HHS - United States
P50 AG016574 NIA NIH HHS - United States
R01 AG011378 NIA NIH HHS - United States
R01 NS097495 NINDS NIH HHS - United States
R37 AG011378 NIA NIH HHS - United States
U01 AG006786 NIA NIH HHS - United States

BACKGROUND: There is accumulating evidence suggesting that diet may play a role in preventing or delaying cognitive decline and dementia, but the underlying biological mechanisms are not well understood. OBJECTIVES: To examine the cross-sectional associations of the Mediterranean diet (MeDi) and its components with 11C-PiB-PET scan measures of amyloid-β (Aβ) deposition. METHODS: The study consisted of 278 Mayo Clinic Study of Aging participants 70+ years old, who were cognitively unimpaired (CU) at the time of completion of the Food Frequency Questionnaire (FFQ) and when they underwent PET imaging. Adherence to the MeDi was assessed by computing the MeDi score for each participant. All scans were performed after the FFQ completion; median [IQR] time between FFQ and Aβ PET was 3.5 (1.4) years. Z-scores were created for component, macro- and micronutrients measured. Linear and logistic regression models were adjusted for age, sex, education, apolipoprotein E (APOE) ɛ4 allele carrier status, time interval between the FFQ completion and PET scan, and total energy intake. RESULTS: Participants' median age at FFQ was 77.7 years (55.8% men; 26.6% with an APOE ɛ4 allele). Higher MeDi score (linear regression slope (beta):-0.035, p = 0.012; per standard deviation increase), vegetable intake (beta:-0.043, p = 0.002), intake of vitamin A (beta:-0.041, p = 0.003) or β-carotene (beta: -0.039, p = 0.005) from food sources and moderate alcohol consumption (beta: -0.074, p = 0.03) were associated with lower 11C-PiB standardized uptake value ratio. CONCLUSION: Findings are consistent with previous studies suggesting that higher adherence to a MeDi pattern and higher vegetable consumption are associated with better neuroimaging biomarker profile. Prospective studies are needed to validate current findings.

Citace poskytuje Crossref.org

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$a BACKGROUND: There is accumulating evidence suggesting that diet may play a role in preventing or delaying cognitive decline and dementia, but the underlying biological mechanisms are not well understood. OBJECTIVES: To examine the cross-sectional associations of the Mediterranean diet (MeDi) and its components with 11C-PiB-PET scan measures of amyloid-β (Aβ) deposition. METHODS: The study consisted of 278 Mayo Clinic Study of Aging participants 70+ years old, who were cognitively unimpaired (CU) at the time of completion of the Food Frequency Questionnaire (FFQ) and when they underwent PET imaging. Adherence to the MeDi was assessed by computing the MeDi score for each participant. All scans were performed after the FFQ completion; median [IQR] time between FFQ and Aβ PET was 3.5 (1.4) years. Z-scores were created for component, macro- and micronutrients measured. Linear and logistic regression models were adjusted for age, sex, education, apolipoprotein E (APOE) ɛ4 allele carrier status, time interval between the FFQ completion and PET scan, and total energy intake. RESULTS: Participants' median age at FFQ was 77.7 years (55.8% men; 26.6% with an APOE ɛ4 allele). Higher MeDi score (linear regression slope (beta):-0.035, p = 0.012; per standard deviation increase), vegetable intake (beta:-0.043, p = 0.002), intake of vitamin A (beta:-0.041, p = 0.003) or β-carotene (beta: -0.039, p = 0.005) from food sources and moderate alcohol consumption (beta: -0.074, p = 0.03) were associated with lower 11C-PiB standardized uptake value ratio. CONCLUSION: Findings are consistent with previous studies suggesting that higher adherence to a MeDi pattern and higher vegetable consumption are associated with better neuroimaging biomarker profile. Prospective studies are needed to validate current findings.
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$a Aakre, Jeremiah A $u Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
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$a Syrjanen, Jeremy A $u Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
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$a Geda, Yonas E $u Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA. Department of Psychiatry and Psychology and Department of Neurology, Mayo Clinic, Scottsdale, AZ, USA.
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$a Machulda, Mary M $u Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA.
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$a Alhurani, Rabe E $u Department of Neurology, Mayo Clinic, Rochester, MN, USA.
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$a Staubo, Sara C $u Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA. Charles University in Prague, Faculty in Hradec Kralove, Hradec Kralove, Czech Republic.
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$a Knopman, David S $u Department of Neurology, Mayo Clinic, Rochester, MN, USA.
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$a Petersen, Ronald C $u Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA. Department of Neurology, Mayo Clinic, Rochester, MN, USA.
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