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  • Title: Distribution and colocalization of delta sleep-inducing peptide and luteinizing hormone-releasing hormone in the aged human brain: an immunohistochemical study.
    Author: Vallet PG, Charnay Y, Bouras C.
    Journal: J Chem Neuroanat; 1990; 3(3):207-14. PubMed ID: 2194498.
    Abstract:
    The distributions of delta sleep-inducing peptide (DSIP)- and luteinizing hormone-releasing hormone (LHRH)-immunoreactive neurons were investigated in the human brain with special emphasis on the basal forebrain (from the septum to the hypothalamus), using indirect immunofluorescence. With a modified elution technique, sequential stainings on the same section showed that DSIP- and LHRH-immunoreactivities were often colocalized. Small numbers of LHRH/DSIP-immunoreactive cells were essentially detected in the diagonal band of Broca, the medial septum and the ventral hypothalamus. The richest areas displaying fibres and terminal-like structures were the preoptic area, the ventromedial and ventrolateral hypothalamic areas, the periventricular region and certain circumventricular organs (i.e. median eminence, vascular organ of the lamina terminalis). Few isolated fibres were observed in the subfornical organ. The topographical relationships between DSIP- and LHRH-immunoreactivities in the neurosecretory systems suggest that DSIP may play a role as important as that of LHRH.
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