Andreas Mæchel Fritzen

Andreas Mæchel Fritzen

Associate Professor


  1. 2024
  2. Published

    Atlas of exercise-induced brain activation in mice

    Skovbjerg, G., Fritzen, Andreas Mæchel, Svendsen, C. S. A., Perens, J., Skytte, J. L., Lund, Camilla, Lund, Jens, Madsen, M. R., Roostalu, U., Hecksher-Sørensen, J. & Clemmensen, Christoffer, 2024, In: Molecular Metabolism. 82, 14 p., 101907.

    Research output: Contribution to journalJournal articlepeer-review

  3. 2023
  4. Published

    Dietary medium-chain fatty acids reduce food intake via the GDF15-GFRAL axis in mice

    Kanta, Josephine Maria, Deisen, L., Johann, K., Holm, Stephanie Kjærulff, Lundsgaard, Anne-Marie, Lund, Jens, Jähnert, M., Schürmann, A., Clemmensen, Christoffer, Kiens, Bente, Fritzen, Andreas Mæchel & Kleinert, Maximilian, 2023, In: Molecular Metabolism. 74, 10 p., 101760.

    Research output: Contribution to journalJournal articlepeer-review

  5. Published

    Exercise physiology in women and men

    Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel & Kiens, Bente, 2023, Principles of Gender-Specific Medicine: Sex and Gender-Specific Biology in the Postgenomic Era. Legato, M. J. (ed.). 4 ed. Elsevier, p. 573-587 15 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  6. Published

    Salt-inducible kinases are required for glucose uptake and insulin signaling in human adipocytes

    Säll, J., Lindahl, M., Fritzen, Andreas Mæchel, Fryklund, C., Kopietz, F., Nyberg, E., Warvsten, A., Morén, B., Foretz, M., Kiens, Bente, Stenkula, K. G. & Göransson, O., 2023, In: Obesity. 31, 10, p. 2515-2529

    Research output: Contribution to journalJournal articlepeer-review

  7. Published

    Skeletal muscle proteins involved in fatty acid transport influence fatty acid oxidation rates observed during exercise

    Maunder, E., Rothschild, J. A., Fritzen, Andreas Mæchel, Jordy, A. B., Kiens, Bente, Brick, M. J., Leigh, W. B., Chang, W. & Kilding, A. E., 2023, In: Pflügers Archiv - European Journal of Physiology. 475, 9, p. 1061-1072 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  8. Published

    TNIK is a conserved regulator of glucose and lipid metabolism in obesity

    Pham, Tang Cam Phung, Dollet, L., Ali, Mona Sadek, Raun, Steffen Henning, Møller, Lisbeth L V, Jafari Kermani, Abbas, Ditzel, N., Andersen, Nicoline Resen, Fritzen, Andreas Mæchel, Gerhart-Hines, Zach, Kiens, Bente, Suomalainen, A., Simpson, S. J., Salling Olsen, M., Kieser, A., Schjerling, Peter, Nieminen, A. I., Richter, Erik A., Havula, E. & Sylow, Lykke, 2023, In: Science Advances. 9, 32, 18 p., eadf7119.

    Research output: Contribution to journalJournal articlepeer-review

  9. 2022
  10. Published

    Measurement of skeletal muscle glucose uptake in mice in response to acute treadmill running

    Møller, Lisbeth L V, Raun, Steffen Henning, Fritzen, Andreas Mæchel & Sylow, Lykke, 2022, In: Journal of Biological Methods. 9, 3, 13 p., e162.

    Research output: Contribution to journalJournal articlepeer-review

  11. Published

    Nutritional optimization for female elite football players - topical review

    de Sousa, M. V., Lundsgaard, Anne-Marie, Christensen, P. M., Christensen, Lars, Randers, M. B., Mohr, M., Nybo, Lars, Kiens, Bente & Fritzen, Andreas Mæchel, 2022, In: Scandinavian Journal of Medicine & Science in Sports. 32, S1, p. 81-104 24 p.

    Research output: Contribution to journalReviewpeer-review

  12. Systems-level analysis of insulin action in mouse strains provides insight into tissue- and pathway-specific interactions that drive insulin resistance

    Nelson, M. E., Madsen, S., Cooke, K. C., Fritzen, Andreas Mæchel, Thorius, I. H., Masson, S. W. C., Carroll, L., Weiss, F. C., Seldin, M. M., Potter, M., Hocking, S. L., Fazakerley, D. J., Brandon, A. E., Thillainadesan, S., Senior, A. M., Cooney, G. J., Stöckli, J. & James, D. E., 2022, In: Cell Metabolism. 34, 2, p. 227-239.e6 20 p.

    Research output: Contribution to journalJournal articlepeer-review

  13. Published

    The GDF15-GFRAL pathway is dispensable for the effects of metformin on energy balance

    Klein, A. B., Nicolaisen, T. S., Johann, K., Fritzen, Andreas Mæchel, Mathiesen, C. V., Gil, Cláudia, Pilmark, N. S., Karstoft, Kristian, Blond, Martin Bæk, Quist, Jonas Salling, Seeley, R. J., Færch, K., Lund, Jens, Kleinert, Maximilian & Clemmensen, Christoffer, 2022, In: Cell Reports. 40, 8, 111258.

    Research output: Contribution to journalJournal articlepeer-review

  14. 2021
  15. Published

    Pharmacological but not physiological GDF15 suppresses feeding and the motivation to exercise

    Klein, A. B., Nicolaisen, T. S., Ørtenblad, N., Gejl, K. D., Jensen, R., Fritzen, A. M., Larsen, E. L., Karstoft, K., Poulsen, H. E., Morville, T., Sahl, R. E., Helge, J. W., Lund, J., Falk, S., Lyngbæk, M., Ellingsgaard, H., Pedersen, B. K., Lu, W., Finan, B., Jørgensen, S. B. & 5 others, Seeley, R. J., Kleinert, Maximilian, Kiens, Bente, Richter, Erik A. & Clemmensen, Christoffer, 2021, In: Nature Communications. 12, 9 p., 1041.

    Research output: Contribution to journalJournal articlepeer-review

  16. Published

    Small amounts of dietary medium-chain fatty acids protect against insulin resistance during caloric excess in humans

    Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel, Sjøberg, K. A., Kleinert, Maximilian, Richter, Erik A. & Kiens, Bente, 2021, In: Diabetes. 70, 1, p. 91-98 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  17. 2020
  18. Published

    ApoA-1 improves glucose tolerance by increasing glucose uptake into heart and skeletal muscle independently of AMPKα2

    Fritzen, Andreas Mæchel, Domingo-Espín, J., Lundsgaard, Anne-Marie, Kleinert, Maximilian, Israelsen, I., Carl, Christian Strini, Nicolaisen, T. S., Kjøbsted, Rasmus, Jeppesen, J. F., Wojtaszewski, Jørgen F P, Lagerstedt, J. O. & Kiens, Bente, 2020, In: Molecular Metabolism. 35, 11 p., 100949.

    Research output: Contribution to journalJournal articlepeer-review

  19. Published
  20. Published

    Effect of aerobic exercise training and deconditioning on oxidative capacity and muscle mitochondrial enzyme machinery in young and elderly individuals

    Fritzen, Andreas Mæchel, Andersen, S. P., Qadri, K. A. N., Thøgersen, Frank Dyrehauge, Krag, T., Ørngreen, M. C., Vissing, John & Jeppesen, T. D., 2020, In: Journal of Clinical Medicine. 9, 10, 15 p., 3113.

    Research output: Contribution to journalJournal articlepeer-review

  21. Published

    Glucometabolic consequences of acute and prolonged inhibition of fatty acid oxidation

    Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel, Nicolaisen, T. S., Carl, Christian Strini, Sjøberg, K. A., Raun, Steffen Henning, Klein, A. B., Sanchez-Quant, E., Langer, J., Ørskov, Cathrine, Clemmensen, Christoffer, Tschöp, M. H., Richter, Erik A., Kiens, Bente & Kleinert, Maximilian, 2020, In: Journal of Lipid Research. 61, 1, p. 10-19 10 p.

    Research output: Contribution to journalJournal articlepeer-review

  22. Published

    Growth factor-dependent and -independent activation of mTORC2

    Knudsen, Jonas Roland, Fritzen, Andreas Mæchel, James, D. E., Jensen, Thomas Elbenhardt, Kleinert, Maximilian & Richter, Erik A., 2020, In: Trends in Endocrinology and Metabolism. 31, 1, p. 13-24 12 p.

    Research output: Contribution to journalReviewpeer-review

  23. Published

    Inducible deletion of skeletal muscle AMPKα 1 reveals that AMPK is required for nucleotide balance but dispensable for muscle glucose uptake and fat oxidation during exercise

    Hingst, J. R., Kjøbsted, R., Birk, J. B., Jørgensen, N. O., Larsen, M. R., Kido, K., Larsen, J. K., Kjeldsen, S. A. S., Fentz, J., Frøsig, C., Holm, S., Fritzen, A. M., Dohlmann, T. L., Larsen, S., Foretz, M., Viollet, B., Schjerling, P., Overby, P., Halling, J. F., Pilegaard, H. & 2 others, Hellsten, Ylva & Wojtaszewski, Jørgen F P, 2020, In: Molecular Metabolism. 40, 17 p., 101028.

    Research output: Contribution to journalJournal articlepeer-review

  24. Published

    Pharmacological targeting of α3β4 nicotinic receptors improves peripheral insulin sensitivity in mice with diet-induced obesity

    Jall, S., De Angelis, M., Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel, Nicolaisen, T. S., Klein, A. B., Novikoff, A., Sachs, S., Richter, Erik A., Kiens, Bente, Schramm, K., Tschöp, M. H., Stemmer, K., Clemmensen, Christoffer, Müller, T. D. & Kleinert, Maximilian, 2020, In: Diabetologia. 63, 6, p. 1236-1247 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  25. Published

    Preserved capacity for adaptations in strength and muscle regulatory factors in elderly in response to resistance exercise training and deconditioning

    Fritzen, Andreas Mæchel, Thøgersen, F. D., Qadri, K. A. N., Krag, T., Sveen, M., Vissing, John & Jeppesen, T. D., 2020, In: Journal of Clinical Medicine. 9, 7, 15 p., 2188.

    Research output: Contribution to journalJournal articlepeer-review

  26. Published

    The importance of fatty acids as nutrients during post-exercise recovery

    Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel & Kiens, Bente, 2020, In: Nutrients. 12, 2, 14 p., 280.

    Research output: Contribution to journalReviewpeer-review

  27. Published

    Thyroid hormone receptor α in skeletal muscle is essential for T3-mediated increase in energy expenditure

    Nicolaisen, T. S., Klein, A. B., Dmytriyeva, O., Lund, Jens, Ingerslev, L. R., Fritzen, Andreas Mæchel, Carl, Christian Strini, Lundsgaard, Anne-Marie, Frost, M., Ma, Tao, Schjerling, P., Gerhart-Hines, Zach, Flamant, F., Gauthier, K., Larsen, Steen, Richter, Erik A., Kiens, Bente & Clemmensen, Christoffer, 2020, In: F A S E B Journal. 34, 11, p. 15480-15491 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  28. Published

    Tuning fatty acid oxidation in skeletal muscle with dietary fat and exercise

    Fritzen, Andreas Mæchel, Lundsgaard, Anne-Marie & Kiens, Bente, 2020, In: Nature Reviews Endocrinology. 16, 12, p. 683-696 14 p.

    Research output: Contribution to journalReviewpeer-review

  29. 2019
  30. Published

    Adaptations in mitochondrial enzymatic activity occurs independent of genomic dosage in response to aerobic exercise training and deconditioning in human skeletal muscle

    Fritzen, Andreas Mæchel, Thøgersen, F. B., Thybo, K., Vissing, C. R., Krag, T. O., Ruiz-Ruiz, C., Risom, L., Wibrand, F., Høeg, L. D., Kiens, Bente, Duno, M., Vissing, John & Jeppesen, T. D., 2019, In: Cells. 8, 3, 16 p., 237.

    Research output: Contribution to journalJournal articlepeer-review

  31. Published

    Dietary fuels in athletic performance

    Fritzen, Andreas Mæchel, Lundsgaard, Anne-Marie & Kiens, Bente, 2019, In: Annual Review of Nutrition. 39, p. 45-73 29 p.

    Research output: Contribution to journalReviewpeer-review

  32. Published

    Fatty acid type-specific regulation of SIRT1 does not affect insulin sensitivity in human skeletal muscle

    Fritzen, Andreas Mæchel, Lundsgaard, Anne-Marie, Jeppesen, J. F., Sjøberg, K. A., Høeg, L. D., Deleuran, H. H., Wojtaszewski, Jørgen F P, Richter, Erik A. & Kiens, Bente, 2019, In: F A S E B Journal. 33, 4, p. 5510-5519 10 p.

    Research output: Contribution to journalJournal articlepeer-review

  33. Published

    Human Paneth cell α-defensin-5 treatment reverses dyslipidemia and improves glucoregulatory capacity in diet-induced obese mice

    Larsen, I. S., Fritzen, Andreas Mæchel, Carl, Christian Strini, Agerholm, M., Damgaard, Mads Vargas, Holm, J. B., Marette, A., Nordkild, P., Kiens, Bente, Kristiansen, Karsten, Wehkamp, J. & Jensen, Benjamin Anderschou Holbech, 2019, In: American Journal of Physiology: Endocrinology and Metabolism. 317, 1, p. E42-E52 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  34. Published

    Insulin tolerance test under anaesthesia to measure tissue-specific insulin-stimulated glucose disposal

    Fazakerley, D. J., Fritzen, Andreas Mæchel, Nelson, M. E., Thorius, I. H., Cooke, K. C., Humphrey, S. J., Cooney, G. J. & James, D. E., 2019, In: Bio-protocol. 9, 2, 13 p., e3146.

    Research output: Contribution to journalJournal articlepeer-review

  35. 2018
  36. Published

    Molecular regulation of fatty acid oxidation in skeletal muscle during aerobic exercise

    Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel & Kiens, Bente, 2018, In: Trends in Endocrinology and Metabolism. 29, 1, p. 18-30 13 p.

    Research output: Contribution to journalReviewpeer-review

  37. 2017
  38. Published

    Circulating FGF21 in humans is potently induced by short term overfeeding of carbohydrates

    Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel, Sjøberg, K. A., Myrmel, L. S., Madsen, L., Wojtaszewski, Jørgen F P, Richter, Erik A. & Kiens, Bente, 2017, In: Molecular Metabolism. 6, 1, p. 22-29 8 p.

    Research output: Contribution to journalJournal articlepeer-review

  39. Published

    Exercise physiology in men and women

    Lundsgaard, Anne-Marie, Fritzen, Andreas Mæchel & Kiens, Bente, 2017, Principles of Gender-Specific Medicine: Gender in the Genomic Era. Legato, M. J. (ed.). 3. ed. Amsterdam: Academic Press, p. 526-542 18 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterEducationpeer-review

  40. Published

    FGF21 does not require adipocyte AMP-activated protein kinase (AMPK) or the phosphorylation of acetyl-CoA carboxylase (ACC) to mediate improvements in whole-body glucose homeostasis

    Mottillo, E. P., Desjardins, E. M., Fritzen, Andreas Mæchel, Zou, V. Z., Crane, J. D., Yabut, J. M., Kiens, Bente, Erion, D. M., Lanba, A., Granneman, J. G., Talukdar, S. & Steinberg, G. R., 2017, In: Molecular Metabolism. 6, 6, p. 471-481 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  41. Published

    Mammalian target of rapamycin complex 2 regulates muscle glucose uptake during exercise in mice

    Kleinert, Maximilian, Parker, B. L., Fritzen, Andreas Mæchel, Knudsen, Jonas Roland, Jensen, Thomas Elbenhardt, Kjøbsted, Rasmus, Sylow, Lykke, Ruegg, M. A., James, D. E. & Richter, Erik A., 2017, In: Journal of Physiology. 595, 14, p. 4845-4855 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  42. Published

    Opposite regulation of insulin sensitivity by dietary lipid versus carbohydrate excess

    Lundsgaard, Anne-Marie, Sjøberg, K. A., Høeg, L. D., Jeppesen, J., Jordy, A. B., Serup, A. K. L., Fritzen, Andreas Mæchel, Pilegaard, Henriette, Myrmel, L. S., Madsen, L., Wojtaszewski, Jørgen F P, Richter, Erik A. & Kiens, Bente, 2017, In: Diabetes. 66, 10, p. 2583-2595 13 p.

    Research output: Contribution to journalJournal articlepeer-review

  43. 2016
  44. Published

    Dietary fat drives whole-body insulin resistance and promotes intestinal inflammation independent of body weight gain

    Jensen, Benjamin Anderschou Holbech, Nielsen, Thomas Svava, Fritzen, Andreas Mæchel, Holm, J. B., Fjære, E., Serup, A. K. L., Borkowski, K., Risis, S., Pærregaard, S. I., Søgaard, I., Poupeau, A. A. G., Poulsen, M., Ma, Tao, Sina, C., Kiens, Bente, Madsen, L., Kristiansen, Karsten & Treebak, Jonas Thue, 2016, In: Metabolism. 65, 12, p. 1706-1719 14 p.

    Research output: Contribution to journalJournal articlepeer-review

  45. Published
  46. Published
  47. Published

    Role of AMPK in regulation of LC3 lipidation as a marker of autophagy in skeletal muscle

    Fritzen, Andreas Mæchel, Frøsig, C., Jeppesen, J. F., Jensen, Thomas Elbenhardt, Lundsgaard, Anne-Marie, Serup, A. K. L., Schjerling, Peter, Proud, C. G., Richter, Erik A. & Kiens, Bente, 2016, In: Cellular Signalling. 28, 6, p. 663-674 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  48. Published

    mTORC2 and AMPK differentially regulate muscle triglyceride content via Perilipin 3

    Kleinert, Maximilian, Parker, B. L., Chaudhuri, R., Fazakerley, D. J., Serup, A. K. L., Thomas, K. C., Krycer, J. R., Sylow, Lykke, Fritzen, Andreas Mæchel, Hoffman, N. J., Jeppesen, J. F., Schjerling, P., Ruegg, M. A., Kiens, Bente, James, D. E. & Richter, Erik A., 2016, In: Molecular Metabolism. 5, 8, p. 646-655 10 p.

    Research output: Contribution to journalJournal articlepeer-review

  49. 2015
  50. Published

    5´AMP activated protein kinase α2 controls substrate metabolism during post-exercise recovery via regulation of pyruvate dehydrogenase kinase 4

    Fritzen, Andreas Mæchel, Lundsgaard, Anne-Marie, Jeppesen, J., Christiansen, M. L. B., Biensø, R. S., Dyck, J. R. B., Pilegaard, Henriette & Kiens, Bente, 2015, In: Journal of Physiology. 593, 21, p. 4765-4780 16 p.

    Research output: Contribution to journalJournal articlepeer-review

  51. Published

    New Nordic Diet induced weight loss is accompanied by changes in metabolism and AMPK signalling in adipose tissue

    Fritzen, Andreas Mæchel, Lundsgaard, Anne-Marie, Jordy, A. B., Poulsen, S. K., Stender, Steen, Pilegaard, Henriette, Astrup, A., Larsen, T. M., Wojtaszewski, Jørgen F P, Richter, Erik A. & Kiens, Bente, 2015, In: Journal of Clinical Endocrinology and Metabolism. 100, 9, p. 3509-3519 11 p.

    Research output: Contribution to journalJournal articlepeer-review

  52. Published

    SIK2 regulates CRTCs, HDAC4 and glucose uptake in adipocytes

    Henriksson, E., Säll, J., Gormand, A., Wasserstrom, S., Morrice, N. A., Fritzen, Andreas Mæchel, Foretz, M., Campbell, D. G., Sakamoto, Kei, Ekelund, M., Degerman, E., Stenkula, K. G. & Göransson, O., 2015, In: Journal of Cell Science. 128, 3, p. 472-486 15 p.

    Research output: Contribution to journalJournal articlepeer-review

  53. 2013
  54. Published

    LKB1 regulates lipid oxidation during exercise independently of AMPK

    Jeppesen, J. F., Maarbjerg, S. J., Jordy, A. B., Fritzen, Andreas Mæchel, Pehmøller, C., Sylow, Lykke, Serup, A. K. L., Jessen, N., Thorsen, K., Prats Gavalda, Clara, Qvortrup, Klaus, Dyck, J. R. B., Hunter, R. W., Sakamoto, Kei, Thomson, D. M., Schjerling, Peter, Wojtaszewski, Jørgen F P, Richter, Erik A. & Kiens, Bente, 2013, In: Diabetes. 62, 5, p. 1490-1499 10 p.

    Research output: Contribution to journalJournal articlepeer-review

ID: 35319052