A ketogenic drink improves brain energy and some measures of cognition in mild cognitive impairment

被引：148

作者：

Fortier, Melanie ^{[1
]}

Castellano, Christian-Alexandre ^{[1
]}

Croteau, Etienne ^{[1
,2
]}

Langlois, Francis ^{[3
]}

Bocti, Christian ^{[1
,4
]}

St-Pierre, Valerie ^{[1
]}

Vandenberghe, Camille ^{[1
]}

Bernier, Michael ^{[1
,2
]}

Roy, Maggie ^{[1
,2
,5
]}

Descoteaux, Maxime ^{[5
]}

Whittingstall, Kevin ^{[6
,7
]}

Lepage, Martin ^{[7
,8
,9
,10
]}

Turcotte, Eric E. ^{[7
,8
,9
,10
]}

Fulop, Tamas ^{[1
,4
]}

Cunnane, Stephen C. ^{[1
,2
,4
]}

机构：

[1] CIUSSS Estrie CHUS, Res Ctr Aging, Sherbrooke, PQ, Canada

[2] Univ Sherbrooke, Dept Pharmacol & Physiol, Sherbrooke, PQ, Canada

[3] CIUSSS Estrie CHUS, Sherbrooke, PQ, Canada

[4] Univ Sherbrooke, Dept Med, Sherbrooke, PQ, Canada

[5] Univ Sherbrooke, Dept Comp Sci, Sherbrooke, PQ, Canada

[6] Univ Sherbrooke, Dept Radiol, Sherbrooke, PQ, Canada

[7] CIUSSS Estrie CHUS, CR CHUS, Sherbrooke, PQ, Canada

[8] Univ Sherbrooke, Sherbrooke Mol Imaging Ctr, Sherbrooke, PQ, Canada

[9] Univ Sherbrooke, Dept Nucl Med, Sherbrooke, PQ, Canada

[10] Univ Sherbrooke, Dept Radiobiol, Sherbrooke, PQ, Canada

来源：

ALZHEIMERS & DEMENTIA | 2019年 / 15卷 / 05期

关键词：

Acetoacetate; Alzheimer's disease; Beta-hydroxybutyrate; Decanoic acid; Fluorodeoxyglucose; Glucose; Ketone; Medium chain triglyceride; Mild cognitive impairment; Octanoic acid; PET imaging; MEDIUM-CHAIN TRIGLYCERIDES; CEREBRAL-BLOOD-FLOW; KETONE-BODIES; GLUCOSE-UPTAKE; METABOLISM; PROGRAM; VOLUME; SCALE; STATE;

D O I：

10.1016/j.jalz.2018.12.017

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Introduction: Unlike for glucose, uptake of the brain's main alternative fuel, ketones, remains normal in mild cognitive impairment (MCI). Ketogenic medium chain triglycerides (kMCTs) could improve cognition in MCI by providing the brain with more fuel. Methods: Fifty-two subjectswithMCI were blindly randomized to 30 g/day of kMCT or matching placebo. Brain ketone and glucose metabolism (quantified by positron emission tomography; primary outcome) and cognitive performance (secondary outcome) were assessed at baseline and 6months later. Results: Brain ketone metabolism increased by 230% for subjects on the kMCT (P < .001) whereas brain glucose uptake remained unchanged. Measures of episodic memory, language, executive function, and processing speed improved on the kMCT versus baseline. Increased brain ketone uptake was positively related to several cognitive measures. Seventy-five percent of participants completed the intervention. Discussion: A dose of 30 g/day of kMCT taken for 6 months bypasses a significant part of the brain glucose deficit and improves several cognitive outcomes in MCI. (C) 2019 the Alzheimer's Association. Published by Elsevier Inc. All rights reserved.

引用

页码：625 / 634

页数：10

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