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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Changes in serotonergic neurons in the brain of pyrithiamine-induced acute thiamine-deficient mice.

We examined changes in 5-hydroxytriptamine (5-HT, serotonin) neurons in pyrithiamine-induced thiamine deficiency in mice immunohistochemically. Extensive decreases in the densities of 5-HT-immunoreactive fibers were detected in the lateral septal nucleus, the thalamus, the medial mammillary nucleus, the dorsal and the median raphe nuclei, the raphe obscurus nucleus, the tegmental area, the cerebellum and the vestibular nucleus, though only a small decrease was detected in the inferior colliculus. Most remarkably, degenerative winding fibers were detected between the deep mesencephalic nucleus and the ventral tegmental area. Increases in intensity of 5-HT immunoreactivity in the dorsal raphe nucleus and decreases in the number of 5-HT-immunoreactive cell bodies in the dorsal and the median raphe nuclei were detected. These results demonstrated the differential vulnerability of 5-HT neurons in thiamine-deficient mice. This is the first report to demonstrate changes in 5-HT neurons immunohistochemically throughout the brain of pyrithiamine-induced thiamine deficient mouse.[1]


  1. Changes in serotonergic neurons in the brain of pyrithiamine-induced acute thiamine-deficient mice. Matsushita, H., Takeuchi, Y., Kosaka, K., Fushiki, S., Kawata, M., Sawada, T. Acta Neuropathol. (1999) [Pubmed]
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