Document Detail


Basophil releasability in young highly trained and older athletes.
MedLine Citation:
PMID:  10211844     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: Exercise-induced hypoxemia in highly trained athletes is associated with an increase in histamine release during exercise. The cells most implicated in blood histamine release are basophils. The aim of this study was to determine whether high-level endurance training induces modifications in histamine releasability from human basophils. METHODS: Seven young highly trained athletes (YA) [aged 26.1+/-1.3 yr (mean +/- SEM)] and seven master athletes (MA) (64.4+/-4.1 yr), all known to develop exercise-induced hypoxemia, were respectively compared with seven young untrained men (YC) (23.0+/-1.5 yr) and seven older untrained men (OC) (61.6+/-1.3 yr). During an incremental exhaustive exercise, blood samples for measurement of anti-IgE-induced histamine release from leukocytes were drawn at rest, VO2max, and recovery. RESULTS: Basophils from "leukocyte-rich" supernatant in YA and MA showed significantly higher histamine release induced by anti-IgE (1 microg x mL(-1) than, respectively, YC (P<0.01) and OC (P<0.05) at rest, VO2ax (P<0.01), and recovery (P<0.01). Basophils in YA and MA also showed a histamine release induced by anti-IgE that was higher at VO2max than at rest (respectively. P<0.01 and P<0.05), but this change was not found in the control groups. CONCLUSION: In conclusion, the basophils in highly trained endurance athletes, both young and older, showed higher anti-IgE-induced histamine release than those of untrained men. This effect of high-level training seemed to be potentiated by exercise.
Authors:
P Mucci; F Anselme-Poujol; C Caillaud; I Couret; M Rossi; C Préfaut
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Publication Detail:
Type:  Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  31     ISSN:  0195-9131     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  1999 Apr 
Date Detail:
Created Date:  1999-06-08     Completed Date:  1999-06-08     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  507-13     Citation Subset:  IM; S    
Affiliation:
Laboratoire de Physiologie des Interactions, Hôpital A. de Villeneuve, Montpellier, France. physiomontp@hol.fr
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Anoxia / metabolism*
Basophils / metabolism*
Exercise Test
Histamine / metabolism
Humans
Male
Middle Aged
Oxygen Consumption
Physical Endurance / physiology*
Prospective Studies
Sports / physiology*
Chemical
Reg. No./Substance:
51-45-6/Histamine

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


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