Discrete retinal input to the parabrachial complex of a new-world primate, the common marmoset (Callithrix jacchus)

作者:Galvao Januario Engelberth Rovena Clara; Bezerra de Pontes Andre Luiz; Silva do Nascimento Rayane Bartira; Melo de Lima Ruthnaldo Rodrigues; de Lima Raissa Rodrigues; Barbosa de Toledo Claudio Antonio; Maris de Oliveira Costa Miriam Stela; Giorgetti Britto Luiz Roberto; Cavalcante Jeferson de Souza*
来源:Neuroscience Letters, 2008, 443(2): 99-103.
DOI:10.1016/j.neulet.2008.07.065

摘要

Traditional retinal projections target three functionally complementary systems it) the brain of mammals: the primary visual system, the visuomotor integration systems and the circadian timing system. In recent years, studies in several animals have been conducted to investigate the retinal projections to these three systems, despite some evidence of additional targets. The aim of this study was to disclose a previously unknown connection between the retina and the parabrachial complex of the common marmoset, by means of the intraocular injection of cholera toxin Subunit b. A few labeled retinal fibers/terminals that are detected in the medial parabrachial portion of the marmoset brain show clear varicosities, Suggesting terminal fields. Although the possible role of these projections remains unknown, they may provide a modulation of the cholinergic parabrachial neurons which project to the thalamic dorsal lateral geniculate nucleus.

  • 出版日期2008-10-3