نتایج جستجو برای: neurotensin
تعداد نتایج: 1310 فیلتر نتایج به سال:
The 2 gut hormones glucagon-like peptide-1 (GLP-1) and peptide YY (PYY) are well known to be coexpressed, costored, and released together to coact in the control of key metabolic target organs. However, recently, it became clear that several other gut hormones can be coexpressed in the intestinal-specific lineage of enteroendocrine cells. Here, we focus on the anatomical and functional conseque...
BACKGROUND The clinical treatment of various types of pain relies upon the use of opioid analgesics. However most of them produce, in addition to the analgesic effect, several side effects such as the development of dependence and addiction as well as sedation, dysphoria, and constipation. One solution to these problems are chimeric compounds in which the opioid pharmacophore is hybridized with...
It has previously been shown that neurotensin binds to high-affinity receptors in the adenocarcinoma HT29 cell line, and that receptor occupancy leads to inositol phosphate formation. The present study was designed to investigate further the effects of neurotensin on calcium mobilization and protein kinase C (PKC) activation in HT29 cells, and to assess the role of GTP-binding proteins (G-prote...
Neurotensin is one of the genes previously found up-regulated in mice striatum after acute injection of MDMA (9 mg/kg). In order to examine the pharmacological significance of this effect, the involvement of the neurotensinergic system in MDMA-induced behaviors was explored in mice using the neurotensin receptor antagonist SR142948A (1mg/kg). We found that acute administration of the antagonist...
A hypotensive peptide, designated neurotensin, has been discovered and isolated in pure form from acid-acetone extracts of bovine hypothalami by column chromatography and paper electrophoresis. The results of amino acid analyses of material recovered after paper electrophoresis at pH 3.5, 6.5, and 8.9 and chromatographic analyses of the dansylated material indicate that the peptide isolated by ...
The antipsychotic drug, haloperidol, elicits the expression of neurotensin and c-fos mRNA in the dorsal lateral region of the striatum and produces an acute cataleptic response in rodents that correlates with the motor side effects of haloperidol in humans. Mice harboring a targeted disruption of the RIIbeta subunit of protein kinase A have a profound deficit in cAMP-stimulated kinase activity ...
Inhibition of Ca2+ currents by the excitatory neurotransmitters neurotensin and substance P was investigated in cultured nucleus basalis neurons with the use of the whole cell patch-clamp technique. The whole cell Ca2+ current, elicited from a holding potential of -80 mV by a step pulse to 0 mV and measured at 100 ms, was inhibited 67.9% by neurotensin and 57.6% by substance P. Low-voltage-acti...
Neurotensin, a neuroendocrine peptide present in gut and brain has previously been found in pancreatic tumours secreting several other peptides. We report here the first case of a patient with a neurotensin-secreting adenocarcinoma of the bronchus.
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