- 著者
- 菅沼 大行 林 宏紀 松本 舞
- 出版者
- 公益社団法人 日本栄養・食糧学会
- 雑誌
- 日本栄養・食糧学会誌 (ISSN:02873516)
- 巻号頁・発行日
- vol.75, no.3, pp.97-102, 2022 (Released:2022-06-17)
- 参考文献数
- 23
カロテノイドは天然界に広く存在する色素であるが, 食事として摂取するものの起源は野菜や果実が多い。また, ヒトはカロテノイドを生合成することができず, 吸収された後, 種々の組織に分布する。我々は, カロテノイドの皮膚への蓄積を光学的に非侵襲で測定できるデバイスを用い, 野菜摂取量を簡便に見積もることができる装置を開発した。住民を対象とした国内の横断研究 (n=811;女性58%;平均年齢49.5±15.1歳) において, その測定値は, 野菜や果実の摂取量と相関することが知られている血清カロテノイド濃度および簡易型自記式食事歴法質問票 (BDHQ) から算出された野菜摂取量と有意な正の相関を示した (それぞれr=0.678, r=0.210)。また, 数値が高いほどメタボリックシンドロームと関連する複数の指標の測定値が健康的であることが示唆された。容易に測定できることから, 現在, 健診の現場等での活用が始まっている。
- 著者
- 林 宏紀 山下 貴宏 吉田 和敬 砂堀 諭 菅沼 大行
- 出版者
- 一般社団法人 日本食育学会
- 雑誌
- 日本食育学会誌 (ISSN:18824773)
- 巻号頁・発行日
- vol.12, no.4, pp.303-312, 2018
<p>We have reported that ingesting vegetable juices before meals might control postprandial blood glucose level for the prevention of diabetes. In this study, two human intervention studies were conducted under the hypothesis that sugar contained in vegetable juices was greatly involved in its action. Firstly, a 200mL of vegetable juice (①), vegetable and fruit mixed juice (②) or a sugar solution consisting of the same composition and concentration as ② (③) was served 30 minutes prior eating rice and compared the effect of each beverage on postprandial blood glucose with that by the same amount of water. As a result, intake of ② and ③ significantly suppressed the elevation in postprandial blood glucose level. In subjects with the top 50% maximum postprandial blood glucose level after ingesting water, the same effect was also observed by ingestion of ①. These results suggested that the suppressive effects of pre-meal ingestion of ① and ② were elicited via induction of insulin by the sugar in the beverages.</p><p>Next, we evaluated the changes in blood glucose and blood insulin concentrations after ingestion①, ②, ③ and a sucrose solution (④, sucrose water) with the same sugar concentration as in ③. As a result, Tmax, the time showing the highest concentration, of blood glucose level was significantly later in ① and ② than in ③ and ④, and Tmax of insulin was significantly later in ① than in ② and ③. We assumed that dietary fiber and/or other substances contained in ① and ② moderate the absorption of sugar, and presumed that the differences observed in this study affected the difference in the effects in the first intervention study. In addition, in the intake of ④, the Tmax of the blood glucose level was significantly faster than that of ① and ②, and Cmax, maximum concentration, of insulin was significantly larger than that of ①. This supposed that frequent ingestion of sugar water was considered to be a higher risk of diabetes than vegetable juices and vegetable fruit mixed juices containing the same amount of sugar.</p><p>As described above, the suppressive effect on the elevation in postprandial blood glucose level by the vegetable juice and vegetable fruit mix juice may be primarily due to the carbohydrates contained in these drinks, and the composition and concentration of carbohydrates might regulate the timing and strength of insulin induction and affect the effect.</p>
1 0 0 0 OA エゴセントリックネットワークと形式概念分析を利用した社会ネットワーク分析
- 著者
- 林 宏紀 伊東 樹希 西尾 典晃 武藤 敦子 犬塚 信博
- 出版者
- 一般社団法人 人工知能学会
- 雑誌
- 人工知能学会論文誌 (ISSN:13460714)
- 巻号頁・発行日
- vol.29, no.1, pp.177-181, 2014-01-05 (Released:2014-01-07)
- 参考文献数
- 12
- 被引用文献数
- 1
Social Network Analysis is a field of sociology, where networks, such as human relations, are investigated in order to understand roles of persons in social context. In this paper, we propose a method for this aim using the method of formal concept analysis (FCA) and ego-centric networks. FCA is a formal tool which extinguishes concepts from instances and their attributes. Our proposed method deals with persons in a network as instances and some graph structure appeared in a local network, which is called an ego-centric network, of a person as attributes. It clarifies the relationship between social nature and human relationship structure possessed by each individual in the network relationships with friends. We examined the proposal method using data acquired by a questionnaire on friendship and social attributes to students. Some groups characterized by the method had statistically significant ratio of students who possess some social attributes.