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Institute of Physiology and Pathophysiology

Kann Lab

Head

 

Prof. Dr. med. Oliver Kann

 

Phone:

+49 6221 54-4560

Fax:

+49 6221 54-6364

E-Mail:

oliver.kann@physiologie.uni-heidelberg.de

About us

 

The research in the Kann laboratory has two scientific focuses:

 

1. The human brain has a relatively high energy demand and is very sensitive to shortage of oxygen and glucose. We investigate the neuronal energy metabolism and the functions of mitochondria, in particular during synchronized neuronal network activities that underlie higher brain functions, such as perception and memory, under physiological and pathophysiological conditions.

 

2. The human brain possesses innate immune cells, so-called microglial cells (resident macrophages). Microglia become activated, for example, during injury and infection. We investigate the impact of microglia at different activation stages on neuronal network activities and neurodegeneration.

 

Our basic research provides insights into pathophysiological mechanisms that might have a role in brain diseases, such as multiple sclerosis and Alzheimer's disease.

 

Selected publications:

 

Hollnagel JO, Cesetti T, Schneider J, Vazetdinova A, Valiullina-Rakhmatullina F, Lewen A, Rozov A, Kann O. Lactate attenuates synaptic transmission and affects brain rhythms featuring high energy expenditure. iScience. 2020 Jul 24; 23(7):101316. doi 10.1016/j.isci.2020.101316.

 

Ta TT, Dikmen HO, Schilling S, Chausse B, Lewen A, Hollnagel JO, Kann O. Priming of microglia with IFN-γ slows neuronal gamma oscillations in situ. Proc Natl Acad Sci U S A. 2019 Feb 19;116(10):4637-4642. doi: 10.1073/pnas.1813562116.

 

Schneider J, Berndt N, Papageorgiou IE, Maurer J, Bulik S, Both M, Draguhn A, Holzhütter HG, Kann O. Local oxygen homeostasis during various neuronal network activity states in the mouse hippocampus. J Cereb Blood Flow Metab. 2017 Jan 1:271678X17740091. doi: 10.1177/0271678X17740091. [Epub ahead of print]

 

Papageorgiou IE, Lewen A, Galow LV, Cesetti T, Scheffel J, Regen T, Hanisch UK, Kann O. TLR4-activated microglia require IFN-γ to induce severe neuronal dysfunction and death in situ. Proc Natl Acad Sci U S A. 2016 Jan 5;113(1):212-7.

 

Kann O, Huchzermeyer C, Kovács R, Wirtz S, Schuelke M. Gamma oscillations in the hippocampus require high complex I gene expression and strong functional performance of mitochondria. Brain. 2011 Feb;134(Pt 2):345-58.

 

Kann O, Kovács R, Njunting M, Behrens CJ, Otáhal J, Lehmann TN, Gabriel S, Heinemann U. Metabolic dysfunction during neuronal activation in the ex vivo hippocampus from chronic epileptic rats and humans. Brain. 2005 Oct;128(Pt 10):2396-407. 


Recent Publications

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Inhibition of cardiac Kv4.3 (Ito) channel isoforms by class I antiarrhythmic drugs lidocaine and mexiletine. Eur J Pharmacol. 2020 Aug 5;880:173159. doi: 10.1016/j.ejphar.2020.173159. Epub 2020 Apr 29.

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Selective inhibition of mitochondrial respiratory complexes controls the transition of microglia into a neurotoxic phenotype in situ. Brain Behav Immun. 2020 Aug;88:802-814. doi: 10.1016/j.bbi.2020.05.052. Epub 2020 May 21.

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Brain energy rescue: an emerging therapeutic concept for neurodegenerative disorders of ageing. Nat Rev Drug Discov. 2020 Jul 24. doi: 10.1038/s41573-020-0072-x. Online ahead of print.

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Lactate Attenuates Synaptic Transmission and Affects Brain Rhythms Featuring High Energy Expenditure. iScience. 2020 Jul 24;23(7):101316. doi: 10.1016/j.isci.2020.101316. Epub 2020 Jun 27.

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A Global Cndp1-Knock-Out Selectively Increases Renal Carnosine and Anserine Concentrations in an Age- and Gender-Specific Manner in Mice. Int J Mol Sci. 2020 Jul 10;21(14):4887. doi:10.3390/ijms21144887.

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Neuronal gamma oscillations and activity-dependent potassium transients remain regular after depletion of microglia in postnatal cortex tissue. J Neurosci Res. 2020 Jul 7. doi: 10.1002/jnr.24689. Online ahead of print.

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Marfan-Syndrom: Eine therapeutische Herausforderung für die Langzeitbehandlung (3/3). Medinlux. 2020 Jun;6:16-20. Review.

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Amyloid, APP, and Electrical Activity of the Brain. Neuroscientist. 2020 Jun;26(3):231-251. doi: 10.1177/1073858419882619. Epub 2019 Nov 29.

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Synchronicity of excitatory inputs drives hippocampal networks to distinct oscillatory patterns. Hippocampus. 2020 May 15. doi: 10.1002/hipo.23214. [Epub ahead of print]

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Vascular Signaling in Allogenic Solid Organ Transplantation - The Role of Endothelial Cells. Front Physiol. 2020 May 8;11:443. doi: 10.3389/fphys.2020.00443. eCollection 2020. Review.

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Mild metabolic stress is sufficient to disturb the formation of pyramidal cell ensembles during gamma oscillations. J Cereb Blood Flow Metab. 2019 Dec 16:271678X19892657. doi: 10.1177/0271678X19892657. [Epub ahead of print

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The mitochondrial calcium uniporter is crucial for the generation of fast cortical network rhythms. J Cereb Blood Flow Metab. 2019 Nov 13:271678X19887777. doi: 10.1177/0271678X19887777. [Epub ahead of print]


Institute of
Physiology and Pathophysiology

Heidelberg University

Im Neuenheimer Feld 326

69120 Heidelberg

Germany

Phone:+49 6221 54-4056
Fax:+49 6221 54-6364
E-mail:susanne.bechtel@
physiologie.uni-heidelberg.de