The DOI matches its Crossref record; 52 of the 52 references it cites were found in a registry or an index.
Adrenaline increases skeletal muscle glycogenolysis, pyruvate dehydrogenase activation and carbohydrate oxidation during moderate exercise in humans
Open accessAbstract
1. To evaluate the role of adrenaline in regulating carbohydrate metabolism during moderate exercise, 10 moderately trained men completed two 20 min exercise bouts at 58 +/- 2 % peak pulmonary oxygen uptake (V(O2,peak)). On one occasion saline was infused (CON), and on the other adrenaline was infused intravenously for 5 min prior to and throughout exercise (ADR). Glucose kinetics were measured by a primed, continuous infusion of 6,6-[(2)H]glucose and muscle samples were obtained prior to and at 1 and 20 min of exercise. 2. The infusion of adrenaline elevated (P < 0.01) plasma adrenaline concentrations at rest (pre-infusion, 0.28 +/- 0.09; post-infusion, 1.70 +/- 0.45 nmol l(-1); means +/- S.E.M.) and this effect was maintained throughout exercise. Total carbohydrate oxidation increased by 18 % and this effect was due to greater skeletal muscle glycogenolysis (P < 0.05) and pyruvate dehydrogenase (PDH) activation (P < 0.05, treatment effect). Glucose rate of appearance was not different between trials, but the infusion of adrenaline decreased (P < 0.05, treatment effect) skeletal muscle glucose uptake in ADR. 3. During exercise muscle glucose 6-phosphate (G-6-P) (P = 0.055, treatment effect) and lactate (P < 0.05) were elevated in ADR compared with CON and no changes were observed for pyruvate, creatine, phosphocreatine, ATP and the calculated free concentrations of ADP and AMP. 4. The data demonstrate that elevated plasma adrenaline levels during moderate exercise in untrained men increase skeletal muscle glycogen breakdown and PDH activation, which results in greater carbohydrate oxidation. The greater muscle glycogenolysis appears to be due to increased glycogen phosphorylase transformation whilst the increased PDH activity cannot be readily explained. Finally, the decreased glucose uptake observed during exercise in ADR is likely to be due to the increased intracellular G-6-P and a subsequent decrease in glucose phosphorylation.
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“Muscular contraction also increases cytosolic calcium (Ca2+) release and an adrenaline-mediated increase in cyclic AMP (cAMP), thereby activating phosphorylase kinase (PK) and the resultant activation of glycogen phosphorylase [56,57].”
From Regulation of Energy Substrate Metabolism in Endurance Exercise (2021) · cites this paper as [57]
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Measurement of Size and Turnover Rate of Body Glucose Pool by the Isotope Dilution Method
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Adrenergic Mechanisms for the Effects of Epinephrine on Glucose Production and Clearance in Man
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“It has been shown previously that the administration of adrenaline decreases glucose MCR in humans at rest (Rizza et al. 1980), but during exercise the data are less conclusive.”
BackgroundGlycogen phosphorylase: control by phosphorylation and allosteric effectors
Johnson, L. N. (1992) · The FASEB Journal · doi:10.1096/fasebj.6.6.1544539 · Cited by 323
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Exercise, GLUT4, and skeletal muscle glucose uptake
Richter, E. A., & Hargreaves, M. (2013) · Physiological Reviews · doi:10.1152/physrev.00038.2012 · Cited by 1,407
Self-citationA comparison of epinephrine and norepinephrine in critically ill patients
Myburgh, J. A., Higgins, A., Jovanovska, A., Lipman, J., Ramakrishnan, N., Santamaria, J., & the CAT Study investigators (2008) · Intensive Care Medicine · doi:10.1007/s00134-008-1219-0 · Cited by 368
Regulation of glucose and glycogen metabolism during and after exercise
Jensen, T. E., & Richter, E. A. (2012) · The Journal of Physiology · doi:10.1113/jphysiol.2011.224972 · Cited by 274
Lactate kinetics at the lactate threshold in trained and untrained men
Messonnier, L. A., Emhoff, C.-A. W., Fattor, J. A., Horning, M. A., Carlson, T. J., & Brooks, G. A. (2013) · Journal of Applied Physiology · doi:10.1152/japplphysiol.00043.2013 · Cited by 169
Exercise and regulation of carbohydrate metabolism
Mul, J. D., Stanford, K. I., Hirshman, M. F., & Goodyear, L. J. (2015) · Progress in molecular biology and translational science · doi:10.1016/bs.pmbts.2015.07.020 · Cited by 151
Metadata
- Authors
- Watt, M. J., Howlett, K. F., Febbraio, M. A., Spriet, L. L., & Hargreaves, M.
- Affiliations
- Deakin University (AU)
- The University of Melbourne (AU)
- University of Guelph (CA)
- Venue
- The Journal of Physiology
- Publisher
- Wiley
- Published
- 2001-07
- Volume
- 534
- Issue
- 1
- Pages
- 269-278
- ISSN
- 0022-3751 (ISSN-L)
- 1469-7793
- PMC
- PMC2278696
- OpenAlex
- W2171637006
- Cited by
- 173
- References
- 52
- Citations by year
- 2026: 4 · 2025: 4 · 2024: 9 · 2023: 2 · 2022: 8 · 2021: 6 · 2020: 11 · 2019: 7 · 2018: 5 · 2017: 4 · 2016: 5 · 2015: 5 · 2014: 6 · 2013: 10 · 2012: 4
- FWCI
- 17.94
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- The Journal of Physiology (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Deakin Research Online (Deakin University) (submittedVersion)
- Figshare (submittedVersion, cc-by)
- Topics
- Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
- Health Sciences › Nursing › Nutrition and Dietetics › Muscle metabolism and nutrition
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolism, Diabetes, and Cancer
- Keywords
- epinephrine, pyruvate dehydrogenase activation, carbohydrate oxidation, moderate-intensity exercise, glucose kinetics, muscle glucose uptake, glucose-6-phosphate, lactate, glycogen phosphorylase, carbohydrate metabolism, intravenous infusion
- MeSH terms
- Adult, Blood Glucose, Enzyme Activation, Epinephrine, Glycogen, Hormones, Humans, Male, Oxidation-Reduction, Pyruvate Dehydrogenase Complex, Exercise, Muscle, Skeletal, Carbohydrate Metabolism
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