Merkel cells, a new localization of prepro-orexin and orexin receptors
نویسندگان
چکیده
منابع مشابه
Orexin and Orexin Receptors
“Reverse pharmacology”, i.e., ligand identification using cell lines expressing orphan receptors, combined with genetic engineering techniques, has increased our understanding of novel signaling systems in the body. Orexin is the first and most successful example of the factors to which such an approach was applied. Our group initially identified orexin A and orexin B as endogenous peptide liga...
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The orexin (hypocretin) neurotransmitter system was recently shown to be directly involved in the pathogenesis of narcolepsy in two animal models. Furthermore, decreased levels of orexin A in the CSF were shown in narcoleptic patients. To define any genetic contribution of orexin to the etiology of narcolepsy, the authors screened the entire prepro-orexin gene for mutations or polymorphisms in ...
متن کاملCellular localization of orexin receptors in human pituitary.
Orexins-A and -B are hypothalamic peptides derived from a precursor called prepro-orexin and relationated with the stimulation of food intake. They act on G protein receptors named orexin receptor 1 (OX(1)R) and orexin receptor 2 (OX(2)R), respectively. In the present study, we used RT-PCR and immunohistochemical techniques to detect the presence of OX(1)R and OX(2)R in human pituitary. A band ...
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Orexins and their receptors OX1 and OX2 regulate energy balance and the sleep-wake cycle. We studied the expression of prepro-orexin (PPO), OX1, and OX2 in brain and pituitary under the influence of the hormonal status in adult rats. Primarily, PPO, OX1, and OX2 expression was determined in Sprague-Dawley female cycling rats during proestrus and in males. Animals were killed at 2-h intervals. A...
متن کاملOrexin receptor agonist Yan 7874 is a weak agonist of orexin/hypocretin receptors and shows orexin receptor-independent cytotoxicity
Two promising lead structures of small molecular orexin receptor agonist have been reported, but without detailed analyses of the pharmacological properties. One of them, 1-(3,4-dichlorophenyl)-2-[2-imino-3-(4-methylbenzyl)-2,3-dihydro-1H-benzo[d]imidazol-1-yl]ethan-1-ol (Yan 7874), is commercially available, and we set out to analyze its properties. As test system we utilized human OX1 and OX2...
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ژورنال
عنوان ژورنال: Journal of Anatomy
سال: 2004
ISSN: 0021-8782,1469-7580
DOI: 10.1111/j.1469-7580.2004.00266.x