Light microscopical study of nitric oxide synthase I-positive neurons, including fibres in the vestibular nuclear complex of the cat.

摘要: Summary Nitric oxide is a gaseous neurotransmitter that synthesized by the enzyme nitric synthase I (NOS I). At present, little known of NOS I-positive neurons in vestibular nuclear complex cat (VNCc). The aim present study was to examine morphology, distribution patterns and interconnections neurons, including fibres VNCc. Five adult cats were used as experimental animals. All anaesthetized perfused transcardially. Brains removed, postfixed, cut on freezing microtome stained three different ways. Every third section treated with Nissl method, other sections either histochemically for NADPH diaphorase or immunohistochemically I. atlas Berman (1928) orientation morphometric study. found all parts VNCc: medial nucleus (MVN); lateral (LVN); superior (SVN); inferior (IVN); X, Y, Z groups Cajal's nucleus. classified according their size (small, medium-sized, large type II) shape (oval, fusiform, triangular, pear-shaped, multipolar irregular). In every nucleus, specific neuronal population observed. SVN, number between identified. MVN, chain-like rolls small found. Tiny MVN mesencephalic reticular formation present. Our data provide information VNCc can be extrapolated mammals.