Document Detail


Salivary Hsp72 does not track exercise stress and caffeine-stimulated plasma Hsp72 responses in humans.
MedLine Citation:
PMID:  21132546     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Heat shock protein 72 (Hsp72) has been detected within saliva, and its presence may contribute to oral defence. It is currently unknown how physiological stress affects salivary Hsp72 or if salivary Hsp72 concentrations reflect plasma Hsp72 concentrations. We studied the effect of exercise upon salivary Hsp72 expression, and using caffeine administration, investigated the role of sympathetic stimulation upon salivary Hsp72 expression. Six healthy males performed two treadmill running exercise bouts in hot conditions (30°C) separated by 1 week in a randomized cross-over design, one with caffeine supplementation (CAF) the other with placebo (PLA). Plasma and saliva samples were collected prior to, during and post-exercise and assayed for Hsp72 concentration by ELISA. Exercise significantly increased plasma Hsp72, but not salivary Hsp72 concentration. Mean salivary Hsp72 concentration (5.1 ± 0.8 ng/ml) was significantly greater than plasma Hsp72 concentration (1.8 ± 0.1 ng/ml), and concentrations of salivary and plasma Hsp72 were unrelated. Caffeine supplementation and exercise increased the concentration of catecholamines, salivary α-amylase and total protein, whilst the salivary Hsp72:α-amylase ratio was lower in CAF. Salivary Hsp72 was not altered by exercise stress nor caffeine supplementation, and concentrations did not track plasma Hsp72 concentration.
Authors:
Matthew B Fortes; Martin Whitham
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial     Date:  2010-12-05
Journal Detail:
Title:  Cell stress & chaperones     Volume:  16     ISSN:  1466-1268     ISO Abbreviation:  Cell Stress Chaperones     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-06     Completed Date:  2011-07-27     Revised Date:  2013-07-03    
Medline Journal Info:
Nlm Unique ID:  9610925     Medline TA:  Cell Stress Chaperones     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  345-52     Citation Subset:  IM    
Affiliation:
School of Sport, Health and Exercise Sciences, Bangor University, Holyhead Road, Bangor, Gwynedd, UK. m.fortes@bangor.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Caffeine / administration & dosage,  pharmacology*
Exercise Test*
HSP72 Heat-Shock Proteins / blood*,  metabolism
Humans
Male
Placebos
Plasma Volume / drug effects
Saliva / drug effects*,  metabolism*
Stress, Physiological / drug effects*
Young Adult
Chemical
Reg. No./Substance:
0/HSP72 Heat-Shock Proteins; 0/Placebos; 58-08-2/Caffeine
Comments/Corrections

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


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