Sandra Bader

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Removal of ipsilateral entorhinal afferents to the fascia dentata results in a retraction of postsynaptic parvalbumin (PARV)-containing dendrites of GABAergic neurons from the outer molecular layer. This study analyzes the reorganization of input synapses of these identified neurons following deafferentation. The density of synaptic input (total length of(More)
ATP-sensitive K+ (KATP) channels couple the metabolic state of a cell to its electrical activity. They consist of a hetero-octameric complex with pore-forming Kir6.x (Kir6.1, Kir6.2) and regulatory sulfonylurea receptor (SUR) subunits. Functional data indicate that KATP channels contribute to epithelial K+ currents at colonic epithelia. However, their(More)
The mouse gastro-intestinal and biliary tract mucosal epithelia harbor choline acetyltransferase (ChAT)-positive brush cells with taste cell-like traits. With the aid of two transgenic mouse lines that express green fluorescent protein (EGFP) under the control of the ChAT promoter (EGFP (ChAT) ) and by using in situ hybridization and immunohistochemistry we(More)
We recently observed a bradykinin-induced increase in the cytosolic Ca2+ concentration in submucosal neurons of rat colon, an increase inhibited by blockers of voltage-dependent Ca2+ (Cav) channels. As the types of Cav channels used by this part of the enteric nervous system are unknown, the expression of various Cav subunits has been investigated in(More)
Nicotinic receptors are not only expressed by excitable tissues, but have been identified in various epithelia. One aim of this study was to investigate the expression of nicotinic receptors and their involvement in the regulation of ion transport across colonic epithelium. Ussing chamber experiments with putative nicotinic agonists and antagonists were(More)
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