ナイアシン代謝産物排泄量からみた高齢者におけるナイアシン栄養の評価

概要

論文の詳細を見る
To know the activity of niacin metabolism in persons of advanced age who lived in three different housing facilities (61-96 years ; n = 73), urine samples were collected and the urinary excretion of nicotinamide metabolites, N^1-methylnicotinamide (MNA), N^1-methyl-2-pyridone-5-carboxamide (2-Py), and N^1-methyl-4-pyridone-3-carboxamide (4-Py) was measured. As a result, the differences in these values between any of the three facilities, and between men and women were not observed when compared with each other in terms of μmol of creatinine. Furthermore, the urinary excretion of MNA, 2-Py, and 4-Py were almost the same between the persons of advanced age and women's students. The niacin equivalent intake in the persons of advanced age was around 28 mg per day, which was above the Recommended Dietary Intake. Therefore, the metabolic activity of niacin in person of advanced age was proved not to decrease when compared with young women.
日本ビタミン学会の論文
1994-07-25