摘要
本文分析了21例百岁老人(100～106岁),21例老年人(65～78岁)及37例青年人(18～21岁)血浆中24种游离氨基酸的浓度。其中17种游离氨基酸青年组大于老年组和百岁老人组。百岁老人组与老年组之间,除血浆胱氨酸和瓜氨酸百岁老人组较高(P<0.05),支/芳比值百岁老人组较低(P<0.02)外,余无统计学差异。结果提示:老年人血浆游离氨基酸的浓度低于青年人,百岁老人组血浆氨基酸浓度与老年组相似,但支/芳比值较低。
The plasma ammo acid levels in 21 centenarians(age 100-106), 21 elders (age 65-78) and 37 young human subjects (age 18-21) were determined. 17 of 24 amino acids studied showed lower values in centenarian and elder groups than those in young group (p<0.05 or p<0.01). The concentrations of other individual amino acids, except higher concentrations of cystine and citrulline (p<0.05), between centenarina and elder groups showed statistically non significance, but the molar ratio of BCAA/AAA was lower (p<0.02) in centenarian than in elder.
出处
《营养学报》
CAS
CSCD
北大核心
1989年第1期9-12,共4页
Acta Nutrimenta Sinica
关键词
年龄
氨基酸
血浆
age plasma amino acid
