Results 171 to 180 of about 20,070 (218)
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Journal of Medicinal Chemistry, 2004
The neuropeptides orexin A and B (also known as hypocretins) play an important role in many physiological and behavioral activities. Orexins are ligands of two closely related G-protein-coupled receptors, that are the named orexin 1 and orexin 2 receptors. To clearly identify the minimal ligand sequences required for receptor activation, we synthesized
Manja, Lang +4 more
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The neuropeptides orexin A and B (also known as hypocretins) play an important role in many physiological and behavioral activities. Orexins are ligands of two closely related G-protein-coupled receptors, that are the named orexin 1 and orexin 2 receptors. To clearly identify the minimal ligand sequences required for receptor activation, we synthesized
Manja, Lang +4 more
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Orexins and orexin receptors: implication in feeding behavior
Regulatory Peptides, 1999Orexin-A and -B are initially identified as endogenous ligands for an orphan G protein coupled receptor. Since the discovery of orexins, investigations of their functions have been guided by their distribution in the lateral hypothalamic area, which has been implicated in feeding behavior.
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2012
Orexin neurons are localized in the lateral hypothalamus and regulate many functions including sleep-wake states. Substantial number of neurotransmitters and neuromodulators has been proposed to influence orexinergic system. Glutamate, as the major excitatory amino acid neurotransmitter in the hypothalamus, was shown to mediate orexin neurons in the ...
Minbay, Zehra +2 more
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Orexin neurons are localized in the lateral hypothalamus and regulate many functions including sleep-wake states. Substantial number of neurotransmitters and neuromodulators has been proposed to influence orexinergic system. Glutamate, as the major excitatory amino acid neurotransmitter in the hypothalamus, was shown to mediate orexin neurons in the ...
Minbay, Zehra +2 more
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2005
“Reverse pharmacological” approaches, i.e., ligand identification using cell lines expressing orphan receptors, combined with genetic engineering techniques, have increased our understanding of novel signaling systems in the body (1). Orexin/hypocretin is the first example of the factors that were successfully applied using such approaches (2).
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“Reverse pharmacological” approaches, i.e., ligand identification using cell lines expressing orphan receptors, combined with genetic engineering techniques, have increased our understanding of novel signaling systems in the body (1). Orexin/hypocretin is the first example of the factors that were successfully applied using such approaches (2).
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[Orexins and orexin receptors].
Ceskoslovenska fysiologie, 1999The hypothalamus plays a central role in the integrated control of feeding and energy homeostasis. Two novel neuropeptides Orexin -A and -B were identified. Orexins activate two closely related G protein-coupled receptors and stimulate food consumption. They act also as mediators in the central feedback mechanism and regulates feeding behavior.
K, Kotaska, R, Průsa
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Orexin Projections and Localization of Orexin Receptors
2006The past several years have provided important insights into the physiological significance of the central orexin system. An important component of these is an increased understanding of the unique neuroanatomy of the orexin/hypocretin system. The orexin peptides, orexin-A and orexin-B, are produced in a restricted region of the central nervous system,
Jacob N. Marcus, Joel K. Elmquist
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Orexins and Gastrointestinal Functions
Current Protein & Peptide Science, 2010Orexin A (OXA) and orexin B (OXB) are recently discovered neuropeptides that appear to play a role in various distinct functions such as arousal and the sleep-wake cycle as well as on appetite and regulation of feeding and energy homeostasis. Orexins were first described as neuropeptides expressed by a specific population of neurons in the lateral ...
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Peptides, 2006
Orexin-A (hypocretin-1), a neuropeptide with stimulatory actions on arousal and appetite, was originally shown to be specifically expressed in the hypothalamus. We studied expression of orexin-A and orexin receptors in the kidney and the presence of orexin-A-like immunoreactivity in human urine.
Kazuhiro, Takahashi +7 more
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Orexin-A (hypocretin-1), a neuropeptide with stimulatory actions on arousal and appetite, was originally shown to be specifically expressed in the hypothalamus. We studied expression of orexin-A and orexin receptors in the kidney and the presence of orexin-A-like immunoreactivity in human urine.
Kazuhiro, Takahashi +7 more
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The Subthalamic Neurons are Activated by Both Orexin-A and Orexin-B
Neuroscience, 2018The subthalamic nucleus is an important nucleus in the indirect pathway of the basal ganglia circuit and therefore is involved in motor control under both normal and pathological conditions. Morphological studies reveal that the subthalamic nucleus receives relatively dense orexinergic projections originating from the hypothalamus.
Qing, Sheng +7 more
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Orexins/hypocretins and orexin receptors in apoptosis: a mini‐review
Acta Physiologica, 2010AbstractAn unexpected and fascinating aspect of the neuropeptides orexins has recently emerged when it was shown that orexins acting at orexin receptors OX1R or OX2R induce dramatic apoptosis resulting in massive reduction in cell growth in various cancer cell lines.
M, Laburthe, T, Voisin, A, El Firar
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