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GABAB

Discover seminars, jobs, and research tagged with GABAB across World Wide.
7 curated items6 ePosters1 Seminar
Updated almost 2 years ago
7 items · GABAB
7 results
SeminarNeuroscienceRecording

Seizure control by electrical stimulation: parameters and mechanisms

Dominique Durand
Case Western
Jan 30, 2024

Seizure suppression by deep brain stimulation (DBS) applies high frequency stimulation (HFS) to grey matter to block seizures. In this presentation, I will present the results of a different method that employs low frequency stimulation (LFS) (1 to 10Hz) of white matter tracts to prevent seizures. The approach has been shown to be effective in the hippocampus by stimulating the ventral and dorsal hippocampal commissure in both animal and human studies respectively for mesial temporal lobe seizures. A similar stimulation paradigm has been shown to be effective at controlling focal cortical seizures in rats with corpus callosum stimulation. This stimulation targets the axons of the corpus callosum innervating the focal zone at low frequencies (5 to 10Hz) and has been shown to significantly reduce both seizure and spike frequency. The mechanisms of this suppression paradigm have been elucidated with in-vitro studies and involve the activation of two long-lasting inhibitory potentials GABAB and sAHP. LFS mechanisms are similar in both hippocampus and cortical brain slices. Additionally, the results show that LFS does not block seizures but rather decreases the excitability of the tissue to prevent seizures. Three methods of seizure suppression, LFS applied to fiber tracts, HFS applied to focal zone and stimulation of the anterior nucleus of the thalamus (ANT) were compared directly in the same animal in an in-vivo epilepsy model. The results indicate that LFS generated a significantly higher level of suppression, indicating LFS of white matter tract could be a useful addition as a stimulation paradigm for the treatment of epilepsy.

ePoster

Auxiliary GABAB receptor subunit KCTD16 role in nociceptive synaptic transmission

Daniel Vasconcelos, Mario Heles, Pavel Adamek, Anirban Bhattacharyya, Jiri Palecek

FENS Forum 2024

ePoster

Disrupted nanoscale organization of GABAB receptors and CaV2.1 channels in the hippocampus of APP/PS1 mice

Carolina Aguado, Alejandro Martín-Belmonte, Rocío Alfaro-Ruiz, Ana Esther Moreno-Martínez, Miriam Fernández, María Llanos Martínez-Poyato, Ricardo Alfonso Puertas-Avendaño, Yugo Fukazawa, Rafael Luján

FENS Forum 2024

ePoster

Ex-vivo and in-vivo analysis of hippocampal pathology in a murine model of anti-GABAB autoimmune encephalitis

Eleonora Anna Loi, Josefine Sell, Christian Geis

FENS Forum 2024

ePoster

Functional hemispheric asymmetry of medial habenula is associated with fear expression via modulation of GABAB receptor signaling in mice

Cihan Önal, Peter Koppensteiner, Elodie Le Monnier, Bernhard Bettler, Ryuichi Shigemoto

FENS Forum 2024

ePoster

GABAB receptors induce phasic release from medial habenula terminals through activity-dependent recruitment of release-ready vesicles

Peter Koppensteiner, Pradeep Bhandari, Cihan Önal, Carolina Borges-Merjane, Elodie Le Monnier, Utsa Roy, Yukihiro Nakamura, Tetsushi Sadakata, Makoto Sanbo, Masumi Hirabayashi, JeongSeop Rhee, Nils Brose, Peter Jonas, Ryuichi Shigemoto

FENS Forum 2024

ePoster

Presynaptic mechanisms underlying GABAB receptor-mediated heterosynaptic depression at hippocampal mossy fiber bouton to CA3 pyramidal neuron synapses

Peipeng Lin, Katharina Lichter, Yuji Okamoto, Peter Jonas

FENS Forum 2024