Réponses corticotropes à un stress intense en fonction de l'entraînement chez deux souches de rats. Résultats préliminairesCorticotropic responses to acute stress according to exercise training in different rat strains: preliminary results |
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Authors: | C. Martin, M. Duclos, F. Chaouloff, A. Sarrieau, P. Morm de,G. Manier |
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Affiliation: | a Physiologie de l'exercice musculaire et du sport, université Victor Segalen, Bordeaux 2, Carreire Nord, bâtiment 2a, RDC, 146, rue Léo Saignat, 33076 Bordeaux cedex, France;b faculté des sciences du sport et de l'éducation physique, université Victor Segalen, Bordeaux 2, France;c génétique du stress, CJF 94-05 Inserm-Inra, université Victor Segalen, Bordeaux 2, 146, rue Léo Saignat, 33076 Bordeaux cedex, France |
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Abstract: | Aims – Determine the corticotropic responses to acute stress with or without prior exercise training and following the corticotropic phenotype of the rats.Methods and results – Lewis and SHR strains were selected for their opposite corticotropic responsiveness characteristics (high and low in SHR and Lewis strain, respectively). This study shows that exercise training induces opposite adrenal responses in SHR strain and in Lewis strain (which decrease increase its corticosterone concentration, respectively).Conclusion – This suggests that genetic may play an key role in pituitary-adrenal adaptations to exercise training. |
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Keywords: | Mots-clé : axe hypothalamo-hypophyso-surré nalien endurance entraî nement rat stressMots-clé : exercise training hypothalamo-pituitary-adrenal axis Lewis SHR stress |
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