Black tea high-molecular-weight polyphenol stimulates exercise training-induced improvement of endurance capacity in mouse via the link between AMPK and GLUT4
Aerobic exercise can promote "fast-to-slow transition" in skeletal muscles, i.e. an increase in oxidative fibers, mitochondria, and myoglobin and improvement in glucose and lipid metabolism. Here, we found that mice administered Mitochondria Activation Factor (MAF) combined with exercise t...
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description | Aerobic exercise can promote "fast-to-slow transition" in skeletal muscles, i.e. an increase in oxidative fibers, mitochondria, and myoglobin and improvement in glucose and lipid metabolism. Here, we found that mice administered Mitochondria Activation Factor (MAF) combined with exercise training could run longer distances and for a longer time compared with the exercise only group; MAF is a high-molecular-weight polyphenol purified from black tea. Furthermore, MAF intake combined with exercise training increased phosphorylation of AMPK and mRNA level of glucose transporter 4 (GLUT4). Thus, our data demonstrate for the first time that MAF activates exercise training-induced intracellular signaling pathways that involve AMPK, and improves endurance capacity. |
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Here, we found that mice administered Mitochondria Activation Factor (MAF) combined with exercise training could run longer distances and for a longer time compared with the exercise only group; MAF is a high-molecular-weight polyphenol purified from black tea. Furthermore, MAF intake combined with exercise training increased phosphorylation of AMPK and mRNA level of glucose transporter 4 (GLUT4). Thus, our data demonstrate for the first time that MAF activates exercise training-induced intracellular signaling pathways that involve AMPK, and improves endurance capacity.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0069480</identifier><identifier>PMID: 23922719</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Aerobic capacity ; AMP-Activated Protein Kinases - metabolism ; Animals ; Biology ; Biosynthesis ; Black tea ; Caffeine ; Chemistry ; Diabetes ; Durability ; Endurance ; Endurance capacity ; Environmental science ; Enzyme Activation - drug effects ; Exercise ; Experiments ; Fatty acids ; Fibers ; Fitness training programs ; Gene Expression Regulation - drug effects ; Glucose ; Glucose metabolism ; Glucose transporter ; Glucose Transporter Type 4 - genetics ; Glucose Transporter Type 4 - metabolism ; Intracellular signalling ; Kinases ; Lipid metabolism ; Medicine ; Metabolism ; Mice ; Mice, Inbred C57BL ; Mitochondria ; Molecular Weight ; mRNA ; Muscle Fibers, Skeletal - drug effects ; Muscle Fibers, Skeletal - metabolism ; Muscles ; Musculoskeletal system ; Myoglobins ; Obesity ; Oxidation-Reduction - drug effects ; Phosphorylation ; Physical Conditioning, Animal ; Physical Endurance - drug effects ; Physical fitness ; Physical training ; Polyphenols ; Polyphenols - administration & dosage ; Polyphenols - pharmacology ; Proteins ; Respiration ; RNA, Messenger - genetics ; RNA, Messenger - metabolism ; Rodents ; Skeletal muscle ; Tea ; Tea - chemistry ; Training</subject><ispartof>PloS one, 2013-07, Vol.8 (7), p.e69480</ispartof><rights>2013 Eguchi et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License: https://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. 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Thus, our data demonstrate for the first time that MAF activates exercise training-induced intracellular signaling pathways that involve AMPK, and improves endurance capacity.</description><subject>Aerobic capacity</subject><subject>AMP-Activated Protein Kinases - metabolism</subject><subject>Animals</subject><subject>Biology</subject><subject>Biosynthesis</subject><subject>Black tea</subject><subject>Caffeine</subject><subject>Chemistry</subject><subject>Diabetes</subject><subject>Durability</subject><subject>Endurance</subject><subject>Endurance capacity</subject><subject>Environmental science</subject><subject>Enzyme Activation - drug effects</subject><subject>Exercise</subject><subject>Experiments</subject><subject>Fatty acids</subject><subject>Fibers</subject><subject>Fitness training programs</subject><subject>Gene Expression Regulation - drug effects</subject><subject>Glucose</subject><subject>Glucose metabolism</subject><subject>Glucose transporter</subject><subject>Glucose Transporter Type 4 - 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subjects | Aerobic capacity AMP-Activated Protein Kinases - metabolism Animals Biology Biosynthesis Black tea Caffeine Chemistry Diabetes Durability Endurance Endurance capacity Environmental science Enzyme Activation - drug effects Exercise Experiments Fatty acids Fibers Fitness training programs Gene Expression Regulation - drug effects Glucose Glucose metabolism Glucose transporter Glucose Transporter Type 4 - genetics Glucose Transporter Type 4 - metabolism Intracellular signalling Kinases Lipid metabolism Medicine Metabolism Mice Mice, Inbred C57BL Mitochondria Molecular Weight mRNA Muscle Fibers, Skeletal - drug effects Muscle Fibers, Skeletal - metabolism Muscles Musculoskeletal system Myoglobins Obesity Oxidation-Reduction - drug effects Phosphorylation Physical Conditioning, Animal Physical Endurance - drug effects Physical fitness Physical training Polyphenols Polyphenols - administration & dosage Polyphenols - pharmacology Proteins Respiration RNA, Messenger - genetics RNA, Messenger - metabolism Rodents Skeletal muscle Tea Tea - chemistry Training |
title | Black tea high-molecular-weight polyphenol stimulates exercise training-induced improvement of endurance capacity in mouse via the link between AMPK and GLUT4 |
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