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  • Title: Distribution of neurotensin-like immunoreactivity in the diencephalon of the Japanese monkey (Macaca fuscata).
    Author: Makino S, Okamura H, Morimoto N, Abe J, Yanaihara N, Ibata Y.
    Journal: J Comp Neurol; 1987 Jun 22; 260(4):552-63. PubMed ID: 3301918.
    Abstract:
    The distribution of neurotensin-like immunoreactive (NT-LI) neurons was examined in the thalamus and hypothalamus of the Japanese monkey (Macaca fuscata) by using the peroxidase-antiperoxidase immunocytochemistry technique. In the thalamus, NT-LI neuronal perikarya were distributed mainly in the midline nuclear group and the dorsomedial nucleus, and partially in the intralaminar nucleus: Immunoreactive fibers were mainly distributed in the midline nucleus, particularly in the nucleus rhomboidalis. Numerous immunoreactive fibers were also detected in the regions that contain the pathways to extrathalamic areas such as the stratum zonale and inferior thalamic peduncle. In the hypothalamus, many immunoreactive neuronal perikarya were distributed in the lateral hypothalamic area and in the arcuate nucleus. Immunoreactive fibers were disseminated throughout the hypothalamus, but they were dense in the preoptic area and sparse in the ventromedial nucleus. An accumulation of dense immunoreactive endings was also observed in the external layer of the median eminence. NT-LI fibers in the external layer of the median eminence were considered to represent nerve endings near portal vessels. Functional roles of neurotensin in the thalamus and hypothalamus are discussed from the anatomical point of view.
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