Document Detail


Whole-body protein turnover in metabolically stressed patients and patients with cancer as measured with [15N] glycine.
MedLine Citation:
PMID:  6626186     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The whole-body protein synthesis rate (PSR) was measured in 5 control patients (group I) and 38 patients in various clinical states (group II). A single pulse of [15N]glycine was given and the PSR calculated from the 15N enrichment in the urinary ammonia excreted over the next 10 hr. The patients' results fell into three separate groups: group IIa patients were nonstressed and had uneventful recoveries (3.1 +/- 0.6 g prot./kg/day), their PSRs were the same as the control group I, (3.1 +/- 1.0 g prot./kg/day); group IIb patients were stressed, had higher PSRs (6.3 +/- 0.9 g prot./kg/day), one of whom died, and the rest had more complications than group IIa; group IIc patients had very high PSRs (15.4 +/- 6.1 g prot./kg/day), all of whom were seriously ill, and 8 out 12 died; Data are +/- 1 SD. The PSR correlated with the serum glutamate oxaloacetate transferase (SGOT, P less than 0.01). We concluded: (i) [15N]glycine cannot be used to measure the PSR in patients with evidence of liver disease; the results are best interpreted in terms of glycine metabolism; (ii) the "apparent" PSR correlated with clinical status; and (iii) an elevated PSR in a patient with a malignancy is not necessarily due to protein metabolism by the tumor.
Authors:
T P Stein; S D Ang; M D Schluter; M J Leskiw; M Nusbaum
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Biochemical medicine     Volume:  30     ISSN:  0006-2944     ISO Abbreviation:  Biochem Med     Publication Date:  1983 Aug 
Date Detail:
Created Date:  1983-11-23     Completed Date:  1983-11-23     Revised Date:  2009-11-11    
Medline Journal Info:
Nlm Unique ID:  0151424     Medline TA:  Biochem Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  59-77     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Aged
Female
Glycine / metabolism*
Humans
Liver / metabolism
Liver Function Tests
Male
Middle Aged
Neoplasms / metabolism*
Nitrogen / urine
Protein Biosynthesis*
Stress, Physiological / metabolism*
Grant Support
ID/Acronym/Agency:
16658//PHS HHS
Chemical
Reg. No./Substance:
56-40-6/Glycine; 7727-37-9/Nitrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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