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Brain afferents to the lateral caudal ventrolateral medulla : a retrograde and ...
Cobos, Angeles; Lima, Deolinda; Almeida, Armando; Tavares, IsauraThe ventrolateral medulla (VLM) modulates autonomic functions, motor reactions and pain responses. The lateralmost part of the caudal VLM (VLMlat) was recently shown to be the VLM area responsible for pain modulation. In the present study, the brain sources of VLMlat afferent fibers were determined by tract-tracing techniques. Following injection of cholera toxin subunit B into the VLMlat, retrogradely labeled ...
Brain afferents to the medullary dorsal reticular nucleus : a retrograde and an...
Almeida, Armando; Cobos, Angeles; Tavares, Isaura; Lima, DeolindaThe medullary dorsal reticular nucleus (DRt) was recently shown to belong to the supraspinal pain control system; neurons within this nucleus give origin to a descending projection that increases spinal nociceptive transmission and facilitates pain perception [Almeida et al. (1999), Eur. J. Neurosci., 11, 110-122]. In the present study, the areas of the brain that may modulate the activity of DRt neurons were i...
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