نتایج جستجو برای: galanin
تعداد نتایج: 1181 فیلتر نتایج به سال:
The effects of corticosterone (10 mg/kg, s.c., 6 h) on dorsal raphe 5-HT1A autoreceptors have been studied in adrenalectomized rats with or without porcine galanin modulation. Adrenalectomy diminishes 5-HT1A autoreceptors affinity. Corticosterone increases 5-HT1A autoreceptor agonist affinity (+90%, p<0.001) in adrenalectomized rats. Galanin (10 nM) increases dorsal raphe 5-HT1A autoreceptor de...
The neuropeptide galanin R1 receptor (GalR1) was tagged at its C terminus with EGFP (GalR1-EGFP) to study receptor localization and trafficking. In PC12 and HEK293 cells, functional GalR1-EGFP was expressed on the plasma membrane and internalized into cytoplasmic vesicles after galanin stimulation. The internalization was blocked by 0.4 M sucrose and by silencing of clathrin with siRNA methodol...
Galanin, a neuropeptide widely expressed in the central and peripheral nervous systems and in the endocrine system, has been shown to regulate numerous physiological and pathological processes through interactions with three G-protein-coupled receptors, GalR1 through GalR3. Over the past decade, some of the receptor subtype-specific effects have been elucidated through pharmacological studies u...
Enteric neurons are able to alter their neurotransmitter content during adaptation to new artificial conditions. The aim of the present study was to investigate changes in vasoactive intestinal peptide (VIP), substance P (SP) and galanin expression during culture of myenteric neurons from the ovine abomasum. In order to accurately reflect the in vivo situation cryostat sections from the ovine a...
Galanin expression markedly increases in the dorsal root ganglion (DRG) after sciatic nerve axotomy and modulates pain behavior and regeneration of sensory neurons. Here, we describe transgenic mice expressing constructs with varying amounts of sequence upstream of the murine galanin gene marked by LacZ. The 20 kb region upstream of the galanin gene recapitulates the endogenous expression patte...
Galanin is a neuropeptide found throughout the central and peripheral nervous systems of a wide range of species, ranging from human and mouse to frog and tuna. Galanin mediates its physiological roles through three receptors (GalR1-3), all members of the G-protein coupled receptor family. In mapping these roles, receptor subtype selective ligands are crucial tools. To facilitate the ligand des...
The early diagnosis of colorectal cancer and the early detection of recurrence are central to effective treatment, as prognosis is directly related to the stage of the disease. When colorectal cancer is diagnosed at an early, localized stage, 5-year survival is 90%. There is substantial interest in the identification of circulating human tumor-derived proteins in serum for the purposes of early...
Corticotropin releasing factor (CRF), a 41-amino acid neuropeptide widely distributed in the mammalian central nervous system, has been shown to infl uence several gastrointestinal functions. Recent studies show that CRF released locally from enteric nerves may also underlie alterations in gut function. In this study, immunohistochemisty was applied to demonstrate the presence of CRF in the jej...
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