Neuropeptide K-(1-24)-peptide: storage and release by carcinoid tumors.

abstract：:We studied the ability of NPFF, a FMRFamide-like peptide with certain antiopiate properties, to affect the inhibitory effect of morphine on the electrically induced contraction of guinea pig ileum. Neuropeptide FF had no effect when administered alone but reduced morphine inhibition in a noncompetitive manner. Neurope...

journal_title：Peptides

authors： Demichel P,Rodriguez JC,Roquebert J,Simonnet G

更新日期：1993-09-01 00:00:00

abstract：:Enzymatic cleavage of endogenous peptides is a commonly used principle to initiate, modulate and terminate action for instance among cytokines and peptide hormones. The incretin hormones, glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1), and the related hormone glucagon-like pepti...

journal_title：Peptides

authors： Gabe MBN,van der Velden WJC,Smit FX,Gasbjerg LS,Rosenkilde MM

更新日期：2020-03-01 00:00:00

abstract：:Urocortin is a newly identified member of the CRF neuropeptide family. Urocortin has been found to bind with high affinity to CRF receptors. The present study investigated urocortin and CRF receptor expression in human colonic mucosa. Non-pathologic sections of adult colorectal tissues were obtained from patients with...

journal_title：Peptides

authors： Muramatsu Y,Fukushima K,Iino K,Totsune K,Takahashi K,Suzuki T,Hirasawa G,Takeyama J,Ito M,Nose M,Tashiro A,Hongo M,Oki Y,Nagura H,Sasano H

更新日期：2000-12-01 00:00:00

abstract：:Defense peptides play a crucial role in insect innate immunity against invading pathogens. From the hemolymph of immune-challenged greater wax moth, Galleria mellonella (Gm) larvae, eight peptides were isolated and characterized. Purified Gm peptides differ considerably in amino acid sequences, isoelectric point value...

journal_title：Peptides

authors： Cytryńska M,Mak P,Zdybicka-Barabas A,Suder P,Jakubowicz T

更新日期：2007-03-01 00:00:00

abstract：:Neuropeptide Y (NPY) receptor binding sites have been characterized in rat brain using both membrane preparations and receptor autoradiography. Radiolabelled NPY binds with high affinity and specificity to an apparent single class of sites in rat brain membrane preparations. The ligand selectivity pattern reveals stro...

journal_title：Peptides

authors： Martel JC,St-Pierre S,Quirion R

更新日期：1986-01-01 00:00:00

abstract：:We have developed a specific and sensitive radioimmunoassay for the hydra head activator neuropeptide (HHAP). The antibody recognizes the C-terminal portion of HHAP and shows no cross-reactivity with other neuropeptides. The assay allows measurement of HHAP-like material in tissue extracts with a minimum detectable co...

journal_title：Peptides

authors： Ekman R,Salford L,Brun A,Larsson I

更新日期：1990-03-01 00:00:00

abstract：:Synthetic peptides containing a phosphorylation site for protein kinase CK2 were used to investigate their binding properties to other peptides/proteins. The aim of this work was to find an efficient procedure to search for these peptide/protein ligands. The goal was successfully achieved through screening of random p...

journal_title：Peptides

authors： Cardellini E,Felici F,Gianfranceschi GL

更新日期：2004-02-01 00:00:00

abstract：:A study was made of the effect of adrenalectomy over different periods of time (6, 15 and 21 days) on exocrine pancreatic secretion in the rat in basal conditions and under stimulation with CCK. It was observed that adrenalectomy does not alter the rate of pancreatic flow but the response capacity to CCK is depressed....

journal_title：Peptides

authors： Manso MA,De Dios I,Garcia AM,Calvo JJ

更新日期：1988-05-01 00:00:00

abstract：:In an attempt to establish the role of F8Famide in opioid activity modulation, we examined the effects of intracerebroventricular administration of the F8Famide analogs (1DME)Y8Fa and (3D)Y8Fa on intestinal transit in mice. (1DME)Y8Fa (0.88 to 22 nmol) inhibited intestinal transit as did F8Famide and morphine. An IP i...

journal_title：Peptides

authors： Gicquel S,Fioramonti J,Bueno L,Zajac JM

更新日期：1993-07-01 00:00:00

abstract：:Studies involving altered energy balance states in rodents have demonstrated that hypothalamic neuropeptide Y (NPY) activity is strongly activated in states of negative energy balance, such as periods of dietary restriction or starvation. However, in cancer cachexia, when there is a significant reduction in body weigh...

journal_title：Peptides

authors： King PJ,Widdowson PS,Doods H,Williams G

更新日期：2000-01-01 00:00:00

abstract：:Receptors for neuropeptide Y (NPY) and peptide YY (PYY) have been extensively characterized in the brain. Less is known about NPY receptor subtypes in the spleen, though it is well established that NPY produces vascular contraction in this tissue. In the present study, we found an unusually high density of Y1 receptor...

journal_title：Peptides

authors： Gehlert DR,Gackenheimer SL

更新日期：1996-01-01 00:00:00

abstract：:The location of the cells giving rise to the tachykinergic innervation of the rat arcuate nucleus was studied by combining immunohistochemistry and retrograde axonal transport of a protein-gold complex (WGA-ApoHRP-gold). Small volumes (20 nl) of this marker were injected into the arcuate nucleus of the rat. Twenty-fou...

journal_title：Peptides

authors： Magoul R,Onteniente B,Benjelloun W,Tramu G

更新日期：1993-03-01 00:00:00

abstract：:We studied the effects of calcitonin gene-related peptide (CGRP) on ciliary beat frequency (CBF) and electrical properties of canine tracheal epithelium by a photoelectric method and Ussing's short-circuit technique, respectively. CGRP dose dependently increased CBF, an effect that was accompanied by elevation of intr...

journal_title：Peptides

authors： Tamaoki J,Kanemura T,Kobayashi K,Sakai N,Takizawa T

更新日期：1989-09-01 00:00:00

abstract：:Cardiac preconditioning represents the most potent and consistently reproducible method of rescuing heart tissue from undergoing irreversible ischemic damage. One of the major goals of the current cardiovascular research is to identify a reliable cardioprotective intervention that can salvage ischemic myocardium. The ...

journal_title：Peptides

authors： Alizadeh AM,Faghihi M,Sadeghipour HR,Mohammadghasemi F,Imani A,Houshmand F,Khori V

更新日期：2010-07-01 00:00:00

abstract：:Obstructive jaundice (OJ) increases the risk of liver injury and sepsis, leading to increased mortality. Cholestatic liver injury is associated with a downregulation of hepcidin expression levels. In fact, hepcidin has an important antimicrobial effect, especially against Escherichia coli. It is unknown whether supple...

journal_title：Peptides

authors： Huang YH,Yang YL,Tiao MM,Kuo HC,Huang LT,Chuang JH

更新日期：2012-06-01 00:00:00

abstract：:Endocrine tumor cells in culture and in vitro cleavage assays have shown that PC1 and PC2 are capable of processing pro-CCK into smaller, intermediate and final, bioactive forms. Similar studies have shown that PC5 has the ability to process a number of propeptides. Here, we use GT1-7 (mouse hypothalamic) and SK-N-MC ...

journal_title：Peptides

authors： Cain BM,Vishnuvardhan D,Beinfeld MC

更新日期：2001-08-01 00:00:00

abstract：:The presence of atrial natriuretic peptide (ANP) binding sites in the thymic cortex, medulla, and splenic white pulp suggests that this peptide may have immunoregulatory activity. We examined the effect of ANP on human natural killer (NK) cell activity. ANP significantly augmented NK cell cytotoxicity after twenty-fou...

journal_title：Peptides

authors： Moss RB,Golightly MG

更新日期：1991-07-01 00:00:00

abstract：:Gastric inhibitory polypeptide (GIP) is a 42 amino acid hormone secreted from intestinal K-cells in response to nutrient ingestion. Despite a recognised physiological role for GIP as an insulin secretagogue to control postprandial blood glucose levels, growing evidence reveals important actions of GIP on adipocytes an...

journal_title：Peptides

authors： Irwin N,Gault VA,O'Harte FPM,Flatt PR

更新日期：2020-03-01 00:00:00

abstract：:Administration of the thiol reagent, cysteamine, reduced the somatostatin content (70-80%) in each of the discrete medullary nuclei assayed without altering the substance P content of the same nuclei. In contrast, capsaicin, the putative neurotoxin for primary sensory afferent neurons had no effect on the somatostatin...

journal_title：Peptides

authors： Helke CJ,Selsky JH

更新日期：1983-09-01 00:00:00

abstract：:As a novel vasoactive peptide, plasma coupling factor 6 (CF6) was shown to be elevated in patients with diabetes mellitus, yet the mechanism involved is unknown. We studied CF6 protein release and its potential mechanism in human umbilical vein endothelial cells (HUVECs) incubated with high glucose levels. High glucos...

journal_title：Peptides

authors： Li X,Xing S,Zhang L,Xing Q,Yan S,Dai H,You S,Pang Y,Tang C

更新日期：2007-03-01 00:00:00

abstract：:The effects of hypergravity on the gene expression of the hypothalamic feeding-related neuropeptides in sham-operated (Sham) and vestibular-lesioned (VL) mice were examined by in situ hybridization histochemistry. Corticotrophin-releasing hormone (CRH) in the paraventricular nucleus was increased significantly in Sham...

journal_title：Peptides

authors： Sonoda S,Yoshimura M,Abe C,Morita H,Ueno H,Motojima Y,Saito R,Maruyama T,Hashimoto H,Tanaka Y,Ueta Y

更新日期：2018-07-01 00:00:00

abstract：:Ghrelin is a 28 amino acid peptide, primarily produced by the oxyntic mucosa X/A like neuroendocrine cells in the stomach. It is also found in the small intestine, hypothalamus, pituitary gland, pancreas, heart, adipose tissue, and immune system. In gastrointestinal neuroendocrine tumors (NETs) ghrelin release has bee...

journal_title：Peptides

authors： Vu JP,Wang HS,Germano PM,Pisegna JR

更新日期：2011-11-01 00:00:00

abstract：:This report reviews the hypothesis that peptides play a role in appetite modulation, stressing that the available evidence is predominantly pharmacological and thus caution needs to be taken in assigning physiological significance at this time. Two peptide systems have been postulated--a peripheral satiety system, typ...

journal_title：Peptides

authors： Morley JE,Levine AS,Gosnell BA,Mitchell JE,Krahn DD,Nizielski SE

更新日期：1985-01-01 00:00:00

abstract：:Intrathecal injection of mice with substance P (SP) or its C-terminal fragments results in a behavioral syndrome characterized by reciprocal caudally directed biting and scratching. Repeated injection of SP, but not SP C-terminal fragments, results in a decrease in the intensity of, or desensitization to, these SP-ind...

journal_title：Peptides

authors： Igwe OJ,Sun X,Larson AA

更新日期：1990-07-01 00:00:00

abstract：:The aim of the present study was to evaluate in hypothalamus and hindbrain of rainbow trout in vitro the effect of leptin treatment on glucosensing capacity and the expression of orexigenic and anorexigenic peptides involved in the control of food intake. In a first experiment, the response of parameters involved in g...

journal_title：Peptides

authors： Aguilar AJ,Conde-Sieira M,López-Patiño MA,Míguez JM,Soengas JL

更新日期：2011-02-01 00:00:00

abstract：:Skh-AMP1 (GRTSKQELCTWERGSVRQADKTIAG) is an antifungal peptide isolated from Satureja khuzistanica which has been shown to have strong antifungal activity against Aspergillus and Candida species, but no obvious hemolytic effects or cell cytotoxicity in vitro. In the present study, Skh-AMP1 was synthesized, and its mode...

journal_title：Peptides

authors： Khani S,Seyedjavadi SS,Hosseini HM,Goudarzi M,Valadbeigi S,Khatami S,Ajdary S,Eslamifar A,Amani J,Imani Fooladi AA,Razzaghi-Abyaneh M

更新日期：2020-01-01 00:00:00

abstract：:We have studied the in vitro effect of VIP and histamine on ultrastructure of the parietal cells in isolated guinea pig fundic glands. The morphological changes induced by histamine in the parietal cells can be compared to those observed after histamine stimulation in vivo or in vitro on gastric mucosa preparations. I...

journal_title：Peptides

authors： Anteunis A,Gespach C,Astesano A,Emami S,Robineaux R,Rosselin G

更新日期：1984-03-01 00:00:00

abstract：:Recent pharmacological data strongly support the hypothesis of delta receptor subtypes as mediators of both supraspinal and spinal antinociception (delta 1 and delta 2 receptors). In vitro ligand binding data, which are fully supportive of the in vivo data, are still lacking. A previous study indicated that [3H][D-Ala...

journal_title：Peptides

authors： Xu H,Partilla JS,de Costa BR,Rice KC,Rothman RB

更新日期：1992-11-01 00:00:00

abstract：:Glucagon-like-peptide-1 (GLP-1) is a proglucagon-derived peptide expressed in the intestinal enteroendocrine-L cells and released after meal ingestion. GLP-1 reduces postprandial glycemia not only by its hormonal effects, but also by its inhibitory effects on gastrointestinal motility. Recently, we showed that GLP-1 a...

journal_title：Peptides

authors： Rotondo A,Amato A,Lentini L,Baldassano S,Mulè F

更新日期：2011-01-01 00:00:00

abstract：:Trefoil factors (TFFs) 1, 2 and 3 are small polypeptides that are co-secreted with mucin throughout the body. They are up-regulated in cancer and inflammatory processes in the gastrointestinal system, where they are proposed to be involved in tissue regeneration, proliferation and protection. Our aim was to explore th...

journal_title：Peptides

authors： Viby NE,Nexø E,Kissow H,Andreassen H,Clementsen P,Thim L,Poulsen SS

更新日期：2015-01-01 00:00:00