Serum amino acid and myofibrillar protein profiles of fed and underfed laboratory rats

被引：7

作者：

Almeida, AM ^{[1
]}

van Harten, S ^{[1
]}

Cardoso, LA ^{[1
]}

机构：

[1] IICT, Ctr Vet & Zootecn, FMV, Lisbon, Portugal

来源：

NUTRITION RESEARCH | 2002年 / 22卷 / 12期

关键词：

myofibrillar proteins; serum free amino acids; rat; undernutrition;

D O I：

10.1016/S0271-5317(02)00472-4

中图分类号：

R15 [营养卫生、食品卫生]; TS201 [基础科学];

学科分类号：

100403 [营养与食品卫生学];

摘要：

This work. aims at the determination of serum free amino acid and myofibrillar protein profiles in N the fed and underfed state of the rat. Sixteen male rats were divided in 2 groups: CR (control) fed ad libitum and RR (restricted. feeding) fed 34% energetic maintenance needs. Animals were slaughtered at day 23, bled and serum free amino acid profile determined. Gastrocnemius muscle was taken for myofibrillar, protein characterisation. Although higher concentrations of Ile, Thr, Met; Ser and Cys were observed in RR group, no preferable catabolism of individual amino acids was observed in. undernourished rats in this study. Myofibrillar protein profiles were similar in both groups revealing the lack of preferable catabolism of myofibrillar proteins and consequently keeping muscle structure. (C) 2002 Elsevier Science Inc. All rights reserved.

引用

页码：1453 / 1459

页数：7

共 31 条

[1]

Constraints to milk production in grazing dairy cows in Brazil and management strategies for improving their productivity [J].