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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Veröffentlicht in:PloS one 2013-07, Vol.8 (7), p.e69480
Hauptverfasser: Eguchi, Tomoaki, Kumagai, Chiaki, Fujihara, Takashi, Takemasa, Thoru, Ozawa, Tetsuo, Numata, Osamu
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container_start_page e69480
container_title PloS one
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creator Eguchi, Tomoaki
Kumagai, Chiaki
Fujihara, Takashi
Takemasa, Thoru
Ozawa, Tetsuo
Numata, Osamu
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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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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