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Chicken breast atte...
Chicken breast attenuates high-intensity-exercise-induced decrease in rat sarcoplasmic reticulum Ca2+ handling
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Mishima, T (author)
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Yamada, T (author)
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Sakamoto, M (author)
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Sugiyama, M (author)
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Matsunaga, S (author)
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Maemura, H (author)
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Shimizu, M (author)
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Takahata, Y (author)
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Morimatsu, F (author)
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Wada, M (author)
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- Human Kinetics, 2008
- 2008
- English.
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In: International journal of sport nutrition and exercise metabolism. - : Human Kinetics. - 1526-484X .- 1543-2742. ; 18:4, s. 399-411
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https://doi.org/10.1...
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Abstract
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- This study was conducted to determine whether dietary chicken-breast extract (CBEX), a rich source of histidine-containing dipeptides, could modify exerciseinduced changes in sarcoplasmic reticulum (SR) function. After 5 weeks of dietary CBEX, SR Ca2+-handling ability was examined in the vastus lateralis muscles of rats subjected to high-intensity running for 2.5 min. Dietary CBEX caused an approximately 15% and 45% increase (p < .01) in muscle carnosine and anserine concentrations, respectively. In resting muscles, depressions in SR Ca2+–ATPase activity were evoked by dietary CBEX without concomitant changes in SR Ca2+ uptake and release rates. The data confirm that high-intensity exercise depresses SR Ca2+ handling. In spite of the same run time, SR Ca2+ handling was reduced to a lesser degree in muscles of CBEX-containing-chow-fed rats than in standard-chow-fed rats (p < .05). These results suggest that dietary CBEX might attenuate deteriorations in SR Ca2+-handling ability that occur with high-intensity exercise.
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- By the author/editor
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Mishima, T
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Yamada, T
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Sakamoto, M
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Sugiyama, M
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Matsunaga, S
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Maemura, H
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show more...
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Shimizu, M
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Takahata, Y
-
Morimatsu, F
-
Wada, M
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show less...
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International jo ...
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Karolinska Institutet