Lasse Kristoffer Bak

Lasse Kristoffer Bak

Guest Researcher, Professor


  1. 2023
  2. Published

    Differential Expression of the β3 Subunit of Voltage-Gated Ca2+ Channel in Mesial Temporal Lobe Epilepsy

    Kjær, C., Palasca, Oana, Barzaghi, G., Bak, Lasse Kristoffer, Durhuus, R. K. J., Jakobsen, Emil, Pedersen, Louise, Bartels, Emil Daniel, Woldbye, David Paul Drucker, Pinborg, Lars Hageman & Jensen, Lars Juhl, 2023, In: Molecular Neurobiology. 60, p. 5755–5769

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Expression of the Purinergic P2X7 Receptor in Murine MOPC315.BM Myeloma Cells

    Risborg Høyer, E., Demir, M., Bak, Lasse Kristoffer, Jørgensen, Niklas Rye & Agrawal, A., 2023, In: Receptors. 2, 3, p. 191-203

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. 2022
  5. Published

    Divergent Cellular Energetics, Glutamate Metabolism, and Mitochondrial Function Between Human and Mouse Cerebral Cortex

    Westi, Emil Winther, Jakobsen, Emil, Voss, C. M., Bak, Lasse Kristoffer, Pinborg, Lars Hageman, Aldana, Blanca & Andersen, J. V., 2022, In: Molecular Neurobiology. 59, p. 7495–7512

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Low cerebral energy metabolism in hepatic encephalopathy reflects low neuronal energy demand. Role of ammonia-induced increased GABAergic tone

    Sorensen, M., Walls, Anne Byriel, Dam, G., Bak, Lasse Kristoffer, Andersen, Jens Velde, Ott, P., Vilstrup, H. & Schousboe, Arne, 2022, In: Analytical Biochemistry. 654, 4 p., 114766.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. 2021
  8. Published

    Pharmacological inhibition of mitochondrial soluble adenylyl cyclase in astrocytes causes activation of AMP-activated protein kinase and induces breakdown of glycogen

    Jakobsen, Emil, Andersen, Jens Velde, Christensen, S. K., Siamka, O., Larsen, M. R., Waagepetersen, Helle S., Aldana, Blanca & Bak, Lasse Kristoffer, 2021, In: Glia. 69, 12, p. 2828-2844 17 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Yield and Integrity of RNA from Brain Samples are Largely Unaffected by Pre-analytical Procedures

    Jensen, P. S. H., Johansen, M., Bak, Lasse Kristoffer, Jensen, Lars Juhl & Kjær, C., 2021, In: Neurochemical Research. 46, p. 447-454

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. 2020
  11. Published

    Potential role of adenylyl cyclase 8 signaling complexes in regulating insulin secretion from pancreatic beta cells

    Lønsmann, I. & Bak, Lasse Kristoffer, Aug 2020, In: Cellular Signalling. 72, 5 p., 109635.

    Research output: Contribution to journalReviewResearchpeer-review

  12. Published

    Aspects of cAMP Signaling in Epileptogenesis and Seizures and Its Potential as Drug Target

    Mertz, C., Krarup, S., Jensen, C. D., Lindholm, S. E. H., Kjær, C., Pinborg, Lars Hageman & Bak, Lasse Kristoffer, 2020, In: Neurochemical Research. 45, p. 1247-1255 9 p.

    Research output: Contribution to journalReviewResearchpeer-review

  13. Published

    Distinct effects on cAMP signaling of carbamazepine and its structural derivatives do not correlate with their clinical efficacy in epilepsy

    Krarup, S., Mertz, C., Jakobsen, Emil, Lindholm, S. E. H., Pinborg, Lars Hageman & Bak, Lasse Kristoffer, 2020, In: European Journal of Pharmacology. 886, 11 p., 173413.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published
  15. 2019
  16. Published

    Soluble adenylyl cyclase-mediated cAMP signaling and the putative role of PKA and EPAC in cerebral mitochondrial function

    Jakobsen, Emil, Lange, S. C. & Bak, Lasse Kristoffer, Aug 2019, In: Journal of Neuroscience Research. 97, 8, p. 1018-1038 21 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Aspects of astrocytic cAMP signaling with an emphasis on the putative power of compartmentalized signals in health and disease

    Christiansen, Ann-Kathrin Lindahl, Jakobsen, Emil, Mertz, C. & Bak, Lasse Kristoffer, 2019, In: Glia. 67, 9, p. 1625-1636

    Research output: Contribution to journalReviewResearchpeer-review

  18. Published

    PARK2 Mutation Causes Metabolic Disturbances and Impaired Survival of Human iPSC-Derived Neurons

    Bogetofte, H., Jensen, P., Ryding, M., Schmidt, S. I., Okarmus, J., Ritter, L., Worm, C. S., Hohnholt, M. C., Azevedo, C., Roybon, L., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Ryan, B. J., Wade-Martins, R., Larsen, M. R. & Meyer, M., 2019, In: Frontiers in Cellular Neuroscience. 13, 14 p., 297.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    State-Dependent Changes in Brain Glycogen Metabolism

    DiNuzzo, M., Walls, Anne Byriel, Öz, G., Seaquist, E. R., Waagepetersen, Helle S., Bak, Lasse Kristoffer, Nedergaard, Maiken & Schousboe, Arne, 2019, Brain Glycogen Metabolism. DiNuzzo, M. & Schousboe, A. (eds.). Springer, p. 269-309 41 p. (Advances in Neurobiology, Vol. 23).

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

  20. Published

    Transcriptome analysis in patients with temporal lobe epilepsy

    Kjær, C., Barzaghi, G., Bak, Lasse Kristoffer, Goetze, Jens P. , Yde, C. W., Woldbye, David Paul Drucker, Pinborg, Lars Hageman & Jensen, Lars Juhl, 2019, In: Brain. 142, 10, p. 49-64 16 p., e55.

    Research output: Contribution to journalLetterResearchpeer-review

  21. 2018
  22. Published

    Astrocytic glycogen metabolism in the healthy and diseased brain

    Bak, Lasse Kristoffer, Walls, Anne Byriel, Schousboe, Arne & Waagepetersen, Helle S., 11 May 2018, In: The Journal of Biological Chemistry. 293, 19, p. 7108-7116 9 p.

    Research output: Contribution to journalReviewResearchpeer-review

  23. Published

    CrossTalk opposing view: lack of evidence supporting an astrocyte-to-neuron lactate shuttle coupling neuronal activity to glucose utilisation in the brain

    Bak, Lasse Kristoffer & Walls, Anne Byriel, 1 Feb 2018, In: The Journal of Physiology. 596, 3, p. 351-353 3 p.

    Research output: Contribution to journalComment/debateResearchpeer-review

  24. Published

    Rebuttal from Lasse K. Bak and Anne B. Walls

    Bak, Lasse Kristoffer & Walls, Anne Byriel, 1 Feb 2018, In: The Journal of Physiology. 596, 3, p. 357

    Research output: Contribution to journalComment/debateResearchpeer-review

  25. Published

    The inhibitors of soluble adenylate cyclase 2-OHE, KH7, and bithionol compromise mitochondrial ATP production by distinct mechanisms

    Jakobsen, Emil, Lange, S. C., Andersen, Jens Velde, Desler, Claus, Kihl, H. F., Hohnholt, M., Stridh, M. H., Rasmussen, Lene Juel, Waagepetersen, Helle S. & Bak, Lasse Kristoffer, 2018, In: Biochemical Pharmacology. 155, p. 92-101 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. 2017
  27. Published

    Misconceptions regarding basic thermodynamics and enzyme kinetics have led to erroneous conclusions regarding the metabolic importance of lactate dehydrogenase isoenzyme expression

    Bak, Lasse Kristoffer & Schousboe, Arne, Nov 2017, In: Journal of Neuroscience Research. 95, 11, p. 2098-2102 5 p.

    Research output: Contribution to journalReviewResearchpeer-review

  28. Published
  29. Published

    Compartmentalised signalling-metabolism coupling in brain cells - putative drug targets for neurological diseases?

    Bak, Lasse Kristoffer, Christiansen, Ann-Kathrin Lindahl, Kjaer, C., Jakobsen, Emil, Hedehus, J., Mertz, C., Madsen, S., Jensen, M., Bergstedt, N., Knezevic, A. & Lindholm, S., Aug 2017, In: Journal of Neurochemistry. 142, S1, p. 145-145

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  30. Published

    Inhibition of soluble adenylyl cyclase (SAC) causes a robust increase in glycolysis in cultured astrocytes

    Jakobsen, Emil, Madsen, S. F., Hedehus, J., Rubio-Villena, C., Jorgensen, N. H. & Bak, Lasse Kristoffer, Aug 2017, p. 147-147.

    Research output: Contribution to conferencePosterResearch

  31. Published

    Astrocytes take the stage in a tale of signaling-metabolism coupling

    Bak, Lasse Kristoffer, 2 Jun 2017, In: The Journal of Biological Chemistry. 292, 22, p. 9439-9440 2 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Characterization of energy and neurotransmitter metabolism in cortical glutamatergic neurons derived from human induced pluripotent stem cells: A novel approach to study metabolism in human neurons

    Aldana, Blanca, Zhang, Y., Lihme, M. F., Bak, Lasse Kristoffer, Nielsen, Jørgen Erik, Holst, B., Hyttel, P., Freude, Kristine & Waagepetersen, Helle S., 2017, In: Neurochemistry International. 106, p. 48-61

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Expression of the human isoform of glutamate dehydrogenase, hGDH2, augments TCA cycle capacity and oxidative metabolism of glutamate during glucose deprivation in astrocytes

    Nissen, J. D., Lykke, K., Bryk, J., Stridh, M. H., Zaganas, I., Jensen, Dorte Skytt, Schousboe, Arne, Bak, Lasse Kristoffer, Enard, W., Pääbo, S. & Waagepetersen, Helle S., 2017, In: Glia. 65, 3, p. 474–488

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Glucose, Lactate and Glutamine but not Glutamate Support Depolarization-Induced Increased Respiration in Isolated Nerve Terminals

    Hohnholt, M. C., Andersen, V. H., Bak, Lasse Kristoffer & Waagepetersen, Helle S., 2017, In: Neurochemical Research. 42, 1, p. 191-201 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. Published

    Patient iPSC-derived neurons for disease modeling of frontotemporal dementia with mutation in CHMP2B

    Zhang, Y., Schmid, B., Qas Younan, N. K., Rasmussen, M. A., Garcia, B. I. A., Agger, M., Callø, K., Stummann, T. C., Larsen, H. M., Nielsen, T. T., Huang, J., Xu, F., Liu, X., Bolund, L., Meyer, M., Bak, L. K., Waagepetersen, H. S., Luo, Y., Nielsen, J. E., Consortium, T. FRA. & 4 others, Holst, B., Clausen, C., Hyttel, P. & Freude, Kristine, 2017, In: Stem Cell Reports. 8, 3, p. 648-658

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. 2016
  37. Published

    The anticonvulsant action of the galanin receptor agonist NAX-5055 involves modulation of both excitatory- and inhibitory neurotransmission

    Walls, Anne Byriel, Flynn, S. P., West, P. J., Müller, M. S., Bak, Lasse Kristoffer, Bulaj, G., Schousboe, Arne & White, H. S., Mar 2016, In: Epilepsy Research. 121, p. 55-63 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. Published

    Neuronal Cell Death Induced by Mechanical Percussion Trauma in Cultured Neurons is not Preceded by Alterations in Glucose, Lactate and Glutamine Metabolism

    Jayakumar, A. R., Bak, Lasse Kristoffer, Rama Rao, K. V., Waagepetersen, Helle S., Schousboe, Arne & Norenberg, M. D., Feb 2016, In: Neurochemical Research. 41, 1, p. 307-15 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. 2015
  40. Published

    Dynamic changes in cytosolic ATP levels in cultured glutamatergic neurons during NMDA-induced synaptic activity supported by glucose or lactate

    Lange, S. C., Winkler, U., Andresen, Lars, Byhrø, M., Waagepetersen, Helle S., Hirrlinger, J. & Bak, Lasse Kristoffer, Dec 2015, In: Neurochemical Research. 40, 12, p. 2517-2526 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Fluctuations in Cytosolic Calcium Regulate the Neuronal Malate-Aspartate NADH Shuttle: Implications for Neuronal Energy Metabolism

    Satrústegui, J. & Bak, Lasse Kristoffer, Dec 2015, In: Neurochemical Research. 40, 12, p. 2425-30 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    Two isoforms of glycogen phosphorylase activated by the same signaling trains: how and why?

    Bak, Lasse Kristoffer, Mueller, M. S., Fox, R., Pedersen, Sofie E., Walls, Anne Byriel, Christiansen, Ann-Kathrin Lindahl, Jakobsen, E., Schousboe, Arne & Waagepetersen, Helle S., Aug 2015, In: Journal of Neurochemistry. 134, suppl. 1, p. 56-56 1 p., S26-01.

    Research output: Contribution to journalConference abstract in journalResearchpeer-review

  43. Published

    The Glutamine-Glutamate/GABA Cycle: Function, Regional Differences in Glutamate and GABA Production and Effects of Interference with GABA Metabolism

    Walls, Anne Byriel, Waagepetersen, Helle S., Bak, Lasse Kristoffer, Schousboe, Arne & Sonnewald, U., Feb 2015, In: Neurochemical Research. 40, 2, p. 402-9 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Published

    Glutamine and ammonia in hepatic encephalopathy

    Dadsetan, S., Waagepetersen, Helle S., Schousboe, Arne & Bak, Lasse Kristoffer, 1 Jan 2015, Glutamine in Clinical Nutrition. Springer New York LLC, p. 219-227 9 p.

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

  45. Published

    Isoform-selective regulation of glycogen phosphorylase by energy deprivation and phosphorylation in astrocytes

    Müller, M. S., Pedersen, Sofie E., Walls, Anne Byriel, Waagepetersen, Helle S. & Bak, Lasse Kristoffer, Jan 2015, In: Glia. 63, 1, p. 154-62 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. 2014
  47. Published

    Astrocyte glycogenolysis is triggered by store-operated calcium entry and provides metabolic energy for cellular calcium homeostasis

    Müller, M. S., Fox, R., Schousboe, Arne, Waagepetersen, Helle S. & Bak, Lasse Kristoffer, Apr 2014, In: Glia. 62, 4, p. 526-34 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  48. Published

    Effects of hyperammonemia on brain energy metabolism: controversial findings in vivo and in vitro

    Schousboe, Arne, Waagepetersen, Helle S., Leke, R. & Bak, Lasse Kristoffer, 1 Mar 2014, In: Metabolic Brain Disease. 29, 4, p. 913-917 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Effect of glutamine synthetase inhibition on brain and interorgan ammonia metabolism in bile duct ligated rats

    Fries, A. W., Dadsetan, S., Keiding, S., Bak, Lasse Kristoffer, Schousboe, Arne, Waagepetersen, Helle S., Simonsen, M., Ott, P., Vilstrup, H. & Sørensen, M., Mar 2014, In: Journal of Cerebral Blood Flow and Metabolism. 34, 3, p. 460-6 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Metabolic mapping of astrocytes and neurons in culture using stable isotopes and gas chromatography-mass spectrometry (GC-MS)

    Walls, Anne Byriel, Bak, Lasse Kristoffer, Sonnewald, U., Schousboe, Arne & Waagepetersen, Helle S., 1 Jan 2014, In: Neuromethods. 90, p. 73-105 33 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  51. Published

    Glutamate dehydrogenase isoforms with N-terminal (His)6- or FLAG-tag retain their kinetic properties and cellular localization

    Pajęcka, K., Nielsen, C. W., Hauge, A., Zaganas, I., Bak, Lasse Kristoffer, Schousboe, Arne, Plaitakis, A. & Waagepetersen, Helle S., 2014, In: Neurochemical Research. 39, 3, p. 487-99 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  52. Published

    Glutamate metabolism in the brain focusing on astrocytes

    Schousboe, Arne, Scafidi, S., Bak, Lasse Kristoffer, Waagepetersen, Helle S. & McKenna, M. C., 2014, In: Advances in Neurobiology. 11, p. 13-30 18 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  53. Published

    Oxidative metabolism of astrocytes is not reduced in hepatic encephalopathy: a PET study with [(11)C]acetate in humans

    Iversen, P., Mouridsen, K., Hansen, M. B., Jensen, S. B., Sørensen, M., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Schousboe, Arne, Ott, P., Vilstrup, H., Keiding, S. & Gjedde, Albert, 2014, In: Frontiers in Neuroscience. 8, p. 353

    Research output: Contribution to journalJournal articleResearchpeer-review

  54. 2013
  55. Published

    Astrocytic control of biosynthesis and turnover of the neurotransmitters glutamate and GABA

    Schousboe, Arne, Bak, Lasse Kristoffer & Waagepetersen, Helle S., 15 Aug 2013, In: Frontiers in Endocrinology. 4, 102.

    Research output: Contribution to journalJournal articleResearchpeer-review

  56. Published

    Brain alanine formation as an ammonia-scavenging pathway during hyperammonemia: effects of glutamine synthetase inhibition in rats and astrocyte-neuron co-cultures

    Dadsetan, S., Kukolj, E., Bak, Lasse Kristoffer, Sørensen, M., Ott, P., Vilstrup, H., Schousboe, Arne, Keiding, S. & Waagepetersen, Helle S., Aug 2013, In: Journal of Cerebral Blood Flow and Metabolism. 33, 8, p. 1235-41 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  57. Published

    Complex actions of ionomycin in cultured cerebellar astrocytes affecting both calcium-induced calcium release and store-operated calcium entry

    Müller, M. S., Obel, L. L. F., Waagepetersen, Helle S., Schousboe, Arne & Bak, Lasse Kristoffer, Jun 2013, In: Neurochemical Research. 38, 6, p. 1260-5 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  58. Role of branched chain amino acids in cerebral ammonia homeostasis related to hepatic encephalopathy

    Bak, Lasse Kristoffer, Waagepetersen, H. S., Sørensen, M., Ott, P., Vilstrup, H., Keiding, S. & Schousboe, A., Jun 2013, In: Metabolic Brain Disease. 28, 2, p. 209-15 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  59. Published

    Glutamate dehydrogenase Isoforms with N-Terminal (His)6- or FLAG-tag retain their kinetic properties and cellular localization

    Pajecka, K., Nielsen, C. W., Hauge, A., Zaganas, I., Bak, Lasse Kristoffer, Schousboe, Arne, Plaitakis, A. & Waagepetersen, Helle S., 26 Apr 2013, In: Neurochemical Research. 39, 3, p. 487-499

    Research output: Contribution to journalJournal articleResearchpeer-review

  60. Published

    Hepatic encephalopathy is associated with decreased cerebral oxygen metabolism and blood flow, not increased ammonia uptake

    Dam, G., Keiding, S., Munk, O. L., Ott, P., Vilstrup, H., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Schousboe, Arne & Sørensen, M., Jan 2013, In: Hepatology. 57, 1, p. 258-65 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  61. Published

    Amino acid neurotransmitter synthesis and removal

    Schousboe, Arne, Bak, Lasse Kristoffer, Madsen, K. K. & Waagepetersen, Helle S., 2013, Neuroglia. Kettenman, H. & Ransom, B. R. (eds.). 3. ed. Oxford: Oxford University Press, p. 443-456 14 p.

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

  62. Published

    Interorgan metabolism of ornithine phenylacetate (OP)-A novel strategy for treatment of hyperammonemia

    Dadsetan, S., Sørensen, M., Bak, Lasse Kristoffer, Vilstrup, H., Ott, P., Schousboe, Arne, Jalan, R., Keiding, S. & Waagepetersen, Helle S., 2013, In: Biochemical Pharmacology. 85, 1, p. 115-23 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  63. Published

    Reply to letter to the editor by Zheng G et al. Venous blood ammonia can be associated with cerebral blood flow in hepatic encephalopathy

    Dam, G., Keiding, S., Munk, O. L., Ott, P., Vilstrup, H., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Schousboe, Arne & Sørensen, M., 2013, In: Hepatology. 58, 2, p. 833-834

    Research output: Contribution to journalComment/debateResearchpeer-review

  64. 2012
  65. Published

    Primary cultures of astrocytes: their value in understanding astrocytes in health and disease

    Lange, S. C., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Schousboe, Arne & Norenberg, M. D., Nov 2012, In: Neurochemical Research. 37, 11, p. 2569-88 20 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  66. Published

    Brain glycogen: new perspectives on its metabolic function and regulation at the subcellular level

    Obel, L. L. F., Müller, M. S., Walls, Anne Byriel, Sickmann, H. M., Bak, Lasse Kristoffer, Waagepetersen, Helle S. & Schousboe, Arne, 2 Mar 2012, In: Frontiers in Neuroenergetics. 4, 15 p.

    Research output: Contribution to journalReviewResearchpeer-review

  67. Published

    Aspects of astrocyte energy metabolism, amino acid neurotransmitter homoeostasis and metabolic compartmentation

    Kreft, M., Bak, Lasse Kristoffer, Waagepetersen, Helle S. & Schousboe, Arne, 2012, In: A S N Neuro. 4, 3, p. 187 199 p.

    Research output: Contribution to journalReviewResearchpeer-review

  68. Published

    Brain energy and ammonia metabolism

    Bak, Lasse Kristoffer, Schousboe, Arne & Waagepetersen, Helle S., 2012, Functional molecular imaging in hepatology. Bentham Science Publishers, Vol. 1. p. 129-144 16 p.

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

  69. Published
  70. Published

    Impairment of the organization of locomotor and exploratory behaviors in bile duct-ligated rats

    Leke, R., de Oliveira, D. L., Mussulini, B. H. M., Pereira, M. S., Kazlauckas, V., Mazzini, G., Hartmann, C. R., Silveira, T. R., Simonsen, M., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Keiding, S., Schousboe, Arne & Portela, L. V., 2012, In: P L o S One. 7, 5, p. e36322

    Research output: Contribution to journalJournal articleResearchpeer-review

  71. Published

    Novel model of neuronal bioenergetics: postsynaptic utilization of glucose but not lactate correlates positively with Ca2+ signalling in cultured mouse glutamatergic neurons

    Bak, Lasse Kristoffer, Obel, L. L. F., Walls, Anne Byriel, Schousboe, Arne, Faek, S. A. A., Jajo, F. S. & Waagepetersen, Helle S., 2012, In: A S N Neuro. 4, 3, p. 151-160

    Research output: Contribution to journalJournal articleResearchpeer-review

  72. Published

    Valine but not leucine or isoleucine supports neurotransmitter glutamate synthesis during synaptic activity in cultured cerebellar neurons

    Bak, Lasse Kristoffer, Johansen, M. L., Schousboe, Arne & Waagepetersen, Helle S., 2012, In: Journal of Neuroscience Research. 90, 9, p. 1768-75 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  73. 2011
  74. Published

    Neuron-glia interactions in glutamatergic neurotransmission: roles of oxidative and glycolytic adenosine triphosphate as energy source

    Schousboe, Arne, Sickmann, H. M., Bak, Lasse Kristoffer, Schousboe, I., Jajo, F. S., Faek, S. A. A. & Waagepetersen, Helle S., 1 Dec 2011, In: Journal of Neuroscience Research. 89, 12, p. 1926-34 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  75. Published

    Inhibition of glutamine synthesis induces glutamate dehydrogenase-dependent ammonia fixation into alanine in co-cultures of astrocytes and neurons

    Dadsetan, S., Bak, Lasse Kristoffer, Sørensen, M., Keiding, S., Vilstrup, H., Ott, P., Leke, R., Schousboe, Arne & Waagepetersen, Helle S., 1 Sep 2011, In: Neurochemistry International. 59, 4, p. 482-8 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  76. Published

    Branched-chain amino acids increase arterial blood ammonia in spite of enhanced intrinsic muscle ammonia metabolism in patients with cirrhosis and healthy subjects

    Dam, G., Keiding, S., Munk, O. L., Ott, P., Buhl, M., Vilstrup, H., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Schousboe, Arne, Møller, N. & Sørensen, M., 1 Aug 2011, In: American Journal of Physiology: Gastrointestinal and Liver Physiology. 301, 2, p. G269-77

    Research output: Contribution to journalJournal articleResearchpeer-review

  77. Published

    Synthesis of neurotransmitter GABA via the neuronal tricarboxylic acid cycle is elevated in rats with liver cirrhosis consistent with a high GABAergic tone in chronic hepatic encephalopathy

    Leke, R., Bak, Lasse Kristoffer, Iversen, P., Sørensen, M., Keiding, S., Vilstrup, H., Ott, P., Portela, L. V., Schousboe, Arne & Waagepetersen, Helle S., 1 Jun 2011, In: Journal of Neurochemistry. 117, 5, p. 824-32 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  78. Published

    Detoxification of ammonia in mouse cortical GABAergic cell cultures increases neuronal oxidative metabolism and reveals an emerging role for release of glucose-derived alanine

    Leke, R., Bak, Lasse Kristoffer, Anker, M., Melø, T. M., Sørensen, M., Keiding, S., Vilstrup, H., Ott, P., Portela, L. V., Sonnewald, U., Schousboe, Arne & Waagepetersen, Helle S., 1 Apr 2011, In: Neurotoxicity Research. 19, 3, p. 496-510 15 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  79. Published

    Brain energy and ammonia metabolism

    Bak, Lasse Kristoffer, Waagepetersen, Helle S. & Schousboe, Arne, 2011, Functional molecular imaging in hepatology. Bussum, The Netherlands: Bentham Science Publishers, p. 129-144

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  80. Published

    Glutamate and glutamine in brain disorders

    Bak, Lasse Kristoffer, Schousboe, Arne & Waagepetersen, Helle S., 2011, Neurochemical mechanisms in diseases. Blass, J. P. (ed.). New York: Springer Publishing Company, Vol. 1. p. 195-212 (Advances in Neurobiology).

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

  81. Published

    The Value of Example Solutions in Pharmacy Education: The role of seniority and gender.

    Sandelin, Albin Gustav, Hansen, H. R., Baldursdóttir, S. G., Kristensen, Anders Skov, Bak, Lasse Kristoffer, Christiansen, Frederik Voetmann & Selhuber-Unkel, C. J. M., 2011, In: Pharmacy Education. 11, 1, p. 32-37 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  82. 2010
  83. Published

    A functioning glycolysis is important for maintenance of glutamate transport in cultured astrocytes

    Schousboe, Arne, Sickmann, H. M., Bak, Lasse Kristoffer, Schousboe, I., Bouman, S. D. & Waagepetersen, Helle S., 2010, In: Journal of Neurochemistry. s1, p. 288-289

    Research output: Contribution to journalConference abstract in journalResearch

  84. Published

    Functional importance of the astrocytic glycogen-shunt and glycolysis for maintenance of an intact intra/extracellular glutamate gradient

    Schousboe, Arne, Sickmann, H. M., Walls, Anne Byriel, Bak, Lasse Kristoffer & Waagepetersen, Helle S., 2010, In: Neurotoxicity Research. 18, 1, p. 94-9 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  85. Published

    Planning and execution of a one-day PhD course employing the theory of didactical situations

    Bak, Lasse Kristoffer, 2010, Improving university science teaching and learning: pedagogical projects 2008. Voetmann Christiansen, F., Rump, C. & Degn, L. (eds.). Department of Science Education, University of Copenhagen, Vol. 1. p. 13-19 (Uden navn, Vol. 1).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterCommunication

  86. 2009
  87. Published
  88. Published

    Impact of the malate-aspartate shuttle in glutamate neurotransmission

    Waagepetersen, Helle S., Bak, Lasse Kristoffer, Lund, Trine Meldgaard, Walls, A. B., Sonnewald, U. & Schousboe, Arne, 2009, In: Journal of Neurochemistry. s1, p. 9

    Research output: Contribution to journalConference abstract in journalResearch

  89. Published

    Low Cerebral Oxygen Consumption and Blood Flow in Patients With Cirrhosis and an Acute Episode of Hepatic Encephalopathy

    Iversen, P., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Vafaee, M. S., Borghammer, P., Mouridsen, K., Jensen, S. B., Vilstrup, H., Schousboe, Arne, Ott, P., Gjedde, Albert & Keiding, S., 2009, In: Gastroenterology. 136, 3, p. 863-871

    Research output: Contribution to journalJournal articleResearchpeer-review

  90. Published

    Metabolic fate of isoleucine in a rat model of hepatic encephalopathy and in cultured neural cells exposed to ammonia

    Bak, Lasse Kristoffer, Iversen, P., Sørensen, M., Keiding, S., Vilstrup, H., Ott, P., Waagepetersen, Helle S. & Schousboe, Arne, 2009, In: Metabolic Brain Disease. 24, 1, p. 135-145

    Research output: Contribution to journalJournal articleResearchpeer-review

  91. Published

    Neuronal glucose but not lactate utilization is positively correlated with NMDA-induced neurotransmission and fluctuations in cytosolic Ca2+ levels

    Bak, Lasse Kristoffer, Walls, Anne Byriel, Schousboe, Arne, Ring, A., Sonnewald, U. & Waagepetersen, Helle S., 2009, In: Journal of Neurochemistry. 109, Suppl. 1, p. 87-93 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  92. Published

    Reduced cerebral blood flow and oxygen consumption in cirrhosis patients with acute hepatic encephalopathy

    Keiding, S., Iversen, P., Sørensen, M., Bak, Lasse Kristoffer, Waagepetersen, Helle S., Gjedde, A., Schousboe, Arne & Vilstrup, H., 2009, In: Journal of Neurochemistry. s1, p. 269-270

    Research output: Contribution to journalConference abstract in journalResearch

  93. 2008
  94. Published

    Demonstration of neuron-glia transfer of precursors for Gaba biosynthesis in a co-culture system of dissociated mouse cerebral cortex

    Leke, R., Bak, Lasse Kristoffer, Schousboe, Arne & Waagepetersen, Helle S., 2008, In: Neurochemical Research. 33, 12, p. 2629-2635

    Research output: Contribution to journalJournal articleResearchpeer-review

  95. Published
  96. Published

    Metabolism of [U-13C]glutamine and [U-13C]glutamate in isolated rat brain mitochondria suggests functional phosphate-activated glutaminase activity in matrix

    Bak, Lasse Kristoffer, Zieminska, E., Waagepetersen, Helle S., Schousboe, Arne & Albrecht, J., 2008, In: Neurochemical Research. 33, 2, p. 273-278

    Research output: Contribution to journalJournal articleResearchpeer-review

  97. 2007
  98. Published

    Energy substrates to support glutamatergic and GABAergic synaptic function: role of glycogen, glucose and lactate

    Schousboe, Arne, Bak, Lasse Kristoffer, Sickmann, H. M., Sonnewald, U. & Waagepetersen, Helle S., Dec 2007, In: Neurotoxicity Research. 12, 4, p. 263-8 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  99. Published

    Among the branched-chain amino acids, only valine metabolism is up-regulated in astrocytes during glutamate exposure

    Bak, Lasse Kristoffer, Johansen, M. L., Schousboe, Arne & Waagepetersen, Helle S., 2007, In: Journal of Neuroscience Research. 86, p. 3465-3470

    Research output: Contribution to journalJournal articleResearchpeer-review

  100. Published

    Complex glutamate labeling from [U-13C]glucose or [U-13C]lactate in co-cultures of cerebellar neurons and astrocytes

    Bak, Lasse Kristoffer, Waagepetersen, Helle S., Melø, T. M., Schousboe, Arne & Sonnewald, U., 2007, In: Neurochemical Research. 32, p. 671-680

    Research output: Contribution to journalJournal articleResearchpeer-review

  101. Published

    Energy substrates to support glutamatergic and GABAergic synaptic function: Role of glycogen, glucose and lactate

    Schousboe, Arne, Bak, Lasse Kristoffer, Sickmann, H. M., Sonnewald, U. & Waagepetersen, Helle S., 2007, In: Neurotoxicity Research. 12, 4, p. 263-268

    Research output: Contribution to journalJournal articleResearchpeer-review

  102. Published

    The metabolic role of isoleucine in detoxification of ammonia in cultured mouse neurons and astrocytes

    Johansen, M. L., Bak, Lasse Kristoffer, Schousboe, Arne, Iversen, P., Sørensen, M., Keiding, S., Vilstrup, H., Gjedde, A., Ott, P. & Waagepetersen, Helle S., 2007, In: Neurochemistry International. 50, p. 1042-1051

    Research output: Contribution to journalJournal articleResearchpeer-review

  103. 2006
  104. Published

    Glucose is necessary to maintain neurotransmitter homeostasis during synaptic activity in cultured glutamatergic neurons

    Bak, Lasse Kristoffer, Schousboe, Arne, Sonnewald, U. & Waagepetersen, Helle S., Oct 2006, In: Journal of Cerebral Blood Flow and Metabolism. 26, 10, p. 1285-97 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  105. Published

    The glutamate/GABA-glutamine cycle: aspects of transport, neurotransmitter homeostasis and ammonia transfer

    Bak, Lasse Kristoffer, Schousboe, Arne & Waagepetersen, Helle S., Aug 2006, In: Journal of Neurochemistry. 98, 3, p. 641-53 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  106. Published

    Demonstration of extensive GABA synthesis in the small population of GAD positive neurons in cerebellar cultures by the use of pharmacological tools

    Sonnewald, U., Kortner, T. M., Qu, H., Olstad, E., Suñol, C., Bak, Lasse Kristoffer, Schousboe, Arne & Waagepetersen, Helle S., 7 Mar 2006, In: Neurochemistry International. 48, 6-7, p. 572-8 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  107. Published

    The orphan transporter v7-3 (slc6a15) is a Na+-dependent neutral amino acid transporter (B0AT2)

    Bröer, A., Tietze, N., Kowalczuk, S., Chubb, S., Munzinger, M., Bak, Lasse Kristoffer & Bröer, S., 1 Jan 2006, In: Biochemical Journal. 393, Pt 1, p. 421-30 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  108. 2004
  109. Published

    Activity of the lactate-alanine shuttle is independent of glutamate-glutamine cycle activity in cerebellar neuronal-astrocytic cultures

    Bak, Lasse Kristoffer, Sickmann, H. M., Schousboe, Arne & Waagepetersen, Helle S., 4 Dec 2004, In: Journal of Neuroscience Research. 79, 1-2, p. 88-96 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  110. Published

    Role of astrocytic transport processes in glutamatergic and GABAergic neurotransmission

    Schousboe, Arne, Sarup, A., Bak, Lasse Kristoffer, Waagepetersen, Helle S. & Larsson, O. M., Sep 2004, In: Neurochemistry International. 45, 4, p. 521-7 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  111. Published

    Role of astrocytes in depolarization-coupled release of glutamate in cerebellar cultures

    Bak, Lasse Kristoffer, Waagepetersen, Helle S. & Schousboe, Arne, Jan 2004, In: Neurochemical Research. 29, 1, p. 257-65 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  112. 2003
  113. Published

ID: 1303653