The effects of amino acid intakes on intelligence and cognitive function. - A large-scale longitudinal study in the community-dwelling middle-aged and elderly-

2014 Fiscal Year Final Research Report

• Project/Area Number: 24790634
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Public health/Health science
• Research Institution: National Center for Geriatrics and Gerontology
• Principal Investigator: KATO Yuki 独立行政法人国立長寿医療研究センター, NILS-LSA活用研究室, 研究員 (20329650)
• Co-Investigator(Renkei-kenkyūsha): SHIMOKATA Hiroshi 名古屋学芸大学, 大学院栄養科学研究科, 教授 (10226269) ; ANDO Fujiko 愛知淑徳大学, 健康医療科学部, 教授 (90333393) ; OTSUKA Rei 独立行政法人国立長寿医療研究センター, NILS-LSA活用研究室, 室長 (00532243) ; IMAI Tomoko 同志社女子大学, 生活科学部, 教授 (20329650)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 知能 / アミノ酸摂取量 / 食事秤量記録調査 / 地域在住中高年者 / 認知機能 / 動物性プロリン / 長期縦断疫学研究

Outline of Final Research Achievements

The aim of this study was to elucidate the effect of amino acid intake on age-related changes in intelligence among Japanese middle-aged and elderly.
First, we constructed the Amino Acid Composition Table of Food containing amino acid compositions in 1,745 food items. In the examination about the effect of the proline intake to the age-related changes of the “Information” scores over a 10-years, as for the middle-aged men and women, the high intake group of proline derived from animal food was significantly increased, compared to the low intake group. Also, the elderly women in the high proline intake group maintained their scores higher than others in the low proline intake group. On the other hand, no significant relationship was observed between the plant-derived proline intake and the “Information” score. Animal-derived proline intake may have some benefit on maintaining age-related changes in intelligence among the middle-aged and elderly.

Free Research Field

公衆栄養学