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Since the discovery of endothelium-dependent relaxation of vascular smooth muscle [13] vascular endothelium has been recognized as an important functional unit involved in the regulation of vascu-lar smooth-muscle tone. Relaxation results from release of a labile endothelium-derived relaxing factor probably identical to nitric oxide (reviewed in [14, 25]).(More)
Morphological changes in dendritic spines have been implicated in connective plasticity in brain circuitry, but the underlying pathway leading from synaptic transmission to structural change is unknown. Using primary neurons expressing GFP-tagged proteins, we found that profilin, a regulator of actin polymerization, is targeted to spine heads when(More)
zfNLRR is a novel transmembrane protein that is most prominently expressed during regeneration of the zebrafish central nervous system. Retinal ganglion cells and descending spinal cord neurons strongly increase zfNLRR mRNA levels after axotomy in the adult. In contrast, during development expression is hardly detectable and is restricted to a few sensory(More)
Hydrogen sulfide (H2S) is the first inorganic compound identified as both a substrate for mitochondrial oxidative phosphorylation and a transmitter in mammalian cells. H2S seems to mediate effects that are correlated with those of nitric oxide (NO) by a reciprocal regulation. Moreover, H2S is consumed by mitochondrial oxidation mediated by sulfide-quinone(More)
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