Document Detail


Changes in the synthesis of exportable and nonexportable proteins in parotid glands during aging.
MedLine Citation:
PMID:  7087567     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The age-related differences in the synthesis of exportable and nonexportable proteins of the parotid salivary gland were compared in 2- and 24-months-old rats. Parotid slices from these rats were incubated in the presence of [14C]leucine and the amount of radioactivity incorporated into the water-soluble proteins of the postmicrosomal supernatant was compared. The exportable and nonexportable proteins were identified by electrophoretic separation of these proteins by comparing the banding patterns of the gel preparations from unstimulated glands to those from the glands stimulated to secrete. The radioactivity determination in various protein bands from these rats indicated that the synthesis of exportable secretory proteins declined with age, while that of nonexportable proteins did not appear to change.
Authors:
S K Kim; D W Calkins; P A Weinhold; S S Han
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Mechanisms of ageing and development     Volume:  18     ISSN:  0047-6374     ISO Abbreviation:  Mech. Ageing Dev.     Publication Date:  1982 Mar 
Date Detail:
Created Date:  1982-08-26     Completed Date:  1982-08-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0347227     Medline TA:  Mech Ageing Dev     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  239-50     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Aging*
Animals
Electrophoresis, Polyacrylamide Gel
Isoproterenol / pharmacology
Male
Parotid Gland / drug effects,  metabolism*
Protein Biosynthesis*
Proteins / isolation & purification,  secretion
Rats
Rats, Inbred Strains
Chemical
Reg. No./Substance:
0/Proteins; 7683-59-2/Isoproterenol

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


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