Identification of a Drosophila brain-gut peptide related to the neuropeptide Y family.

abstract：:The biosynthetic activity of rat intermediate lobe melanotropes in vivo is inhibited by stimulation of dopamine D2 receptors. Individual melanotropes are innervated differentially by dopaminergic axons and vary in their levels of pro-opiomelanocortin (POMC) mRNA. We tested the hypothesis that placement of the lobe in ...

journal_title：Peptides

authors： Beatty DM,Morris SJ,Chronwall BM

更新日期：1998-01-01 00:00:00

abstract：:Substance P (SP) is known to be involved in processes related to learning and memory, fear, anxiety and stress. SP and NK1 receptors are localized in the hippocampus, a brain structure involved in learning and memory as well as emotional processes. As there is evidence for differential functions of the ventral (VH) an...

journal_title：Peptides

authors： Carvalho MC,Masson S,Brandão ML,de Souza Silva MA

更新日期：2008-07-01 00:00:00

abstract：:To evaluate the effects of exogenous ghrelin or obestatin on intestinal injury and accompanying pulmonary injury, intestinal ischemia-reperfusion (I/R) was induced in rats by obstructing the superior mesenteric artery for 60min, whereas laparotomy was performed in the sham group. At the beginning of the 90-min reperfu...

journal_title：Peptides

authors： Şen LS,Karakoyun B,Yeğen C,Akkiprik M,Yüksel M,Ercan F,Özer A,Yeğen BÇ

更新日期：2015-09-01 00:00:00

abstract：:Suppression subtractive hybridization comparing brains from diapausing and nondiapausing pupae of the flesh fly, Sarcophaga crassipalpis, suggested that the gene encoding neuropeptide-like precursor 4 (Nplp4) was uniquely expressed during diapause. We have sequenced the full-length cDNA encoding Nplp4 and used Norther...

journal_title：Peptides

authors： Li A,Rinehart JP,Denlinger DL

更新日期：2009-03-01 00:00:00

abstract：:Endomorphin 1 (EM-1) and EM-2 have been widely reported in the cells of the central nervous system (CNS) but limited research has been done regarding their distribution in the peripheral system. The occurrence of EM-1 and -2 in the spleen as measured by RIA and their ability to mediate immune function imply a role for...

journal_title：Peptides

authors： Seale JV,Jessop DS,Harbuz MS

更新日期：2004-01-01 00:00:00

abstract：:Using Surface Plasmon Resonance (SPR) we investigated the interaction of seven neuropeptides with different characteristics and beta-amyloid (Abeta42) peptide, with membranes containing gangliosides. A wide range of affinities characterized the bindings (K(D) = 10(-3)- 10(-7) M), following the scheme: for GM1, Abeta42...

journal_title：Peptides

authors： Valdes-Gonzalez T,Inagawa J,Ido T

更新日期：2001-07-01 00:00:00

abstract：:We screened nearly 1000 synthetic peptides and found that JAL-AK22 (KYEGHWYPEKPYKGSGFRCIHI), which is derived from the BoxA domain in the Tob1 protein, activates both unfolded and folded proMMP-7. Interestingly, the smaller derivative of JAL-AK22, termed JAL-TA9 (YKGSGFRMI) possessed auto-proteolytic activity and clea...

journal_title：Peptides

authors： Nakamura R,Konishi M,Taniguchi M,Hatakawa Y,Akizawa T

更新日期：2019-06-01 00:00:00

abstract：:The analysis of the spectrum of circular dichroism (CD) of methionine-oxidized bovine parathyroid hormone peptide, bPTH(1-34) revealed that approximately 43% of the orderly conformation (alpha-helix and beta-sheet) was converted into random coil structure. This peptide failed to elicit any hypotensive response in rats...

journal_title：Peptides

authors： Hong BS,Yang MC,Liang JN,Pang PK

更新日期：1986-11-01 00:00:00

abstract：:The localization of CCK8-, bombesin- and VIP-like immunoreactivities in the myenteric plexus of the guinea pig small intestine has been studied by radioimmunoassay of extracts of longitudinal muscle strips obtained with and without adherent myenteric plexus; concentrations were compared with those in other regions of ...

journal_title：Peptides

authors： Hutchison JB,Dimaline R,Dockray GJ

更新日期：1981-04-01 00:00:00

abstract：:Members of the neprilysin family of neutral endopeptidases (M13) are typically membrane-bound enzymes known to be involved in the extra-cellular metabolism of signalling peptides and have important roles during mammalian embryogenesis. In this study we show that membranes prepared from embryos of Drosophila melanogast...

journal_title：Peptides

authors： Bland ND,Thomas JE,Audsley N,Shirras AD,Turner AJ,Isaac RE

更新日期：2007-01-01 00:00:00

abstract：:Our previous findings that the degree of endotoxin-induced hypotension in the dog is inversely related to ambient temperature (19 degrees through 30 degrees C) and that only increased doses of naloxone are effective at 19 degrees C suggested that opioid activity is also influenced by ambient temperature, increasing in...

journal_title：Peptides

authors： Schoenfeld AD,Lox CD,Chen CH,Lutherer LO

更新日期：1985-01-01 00:00:00

abstract：:A sparse to moderate supply of nerve fibers containing neuropeptide Y-like immunoreactivity (NPY-LI), vasoactive intestinal polypeptide (VIP-LI), substance P (SP-LI), and calcitonin gene-related peptide (CGRP-LI) was demonstrated in the walls of human middle meningeal arteries. Comparison with similar studies on human...

journal_title：Peptides

authors： Jansen I,Uddman R,Ekman R,Olesen J,Ottosson A,Edvinsson L

更新日期：1992-05-01 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：:A new, p -carborane containing analog of tyrosine, 3-[1-hydroxy-1,12-dicarba-closo-dodecaboran (12)-12-yl]alanine, was prepared from protected 3-[1-hydroxy-1,12-dicarba-closo-dodecaboran (12)-12-yl]propionic acid in five steps using Oppolzer's sultam methodology for asymmetric hydroxyamination as the key step. The tyr...

journal_title：Peptides

authors： Ujváry I,Nachman RJ

更新日期：2002-04-01 00:00:00

abstract：:This paper reports the purification and biochemical/pharmacological characterization of two myotoxic phospholipases A(2) (PLA(2)s) from Bothrops brazili venom, a native snake from Brazil. Both myotoxins (MTX-I and II) were purified by a single chromatographic step on a CM-Sepharose ion-exchange column up to a high pur...

journal_title：Peptides

authors： Costa TR,Menaldo DL,Oliveira CZ,Santos-Filho NA,Teixeira SS,Nomizo A,Fuly AL,Monteiro MC,de Souza BM,Palma MS,Stábeli RG,Sampaio SV,Soares AM

更新日期：2008-10-01 00:00:00

abstract：:While neuropeptides of the allatostatin family inhibit in vitro production of juvenile hormone, which modulates aspects of development and reproduction in the cockroach, Diploptera punctata, they are susceptible to inactivation by peptidases in the hemolymph, gut, and bound to internal tissues. Patterns of peptidase c...

journal_title：Peptides

authors： Nachman RJ,Garside CS,Tobe SS

更新日期：1999-01-01 00:00:00

abstract：:The peptide IIAEK derived from beta-lactoglobulin has a hypocholesterolemic activity greater than that of beta-sitosterol. To create food proteins with multiple copies of this valuable peptide sequence, we introduced tandem multimers of the nucleotide sequence encoding the peptide into DNA regions corresponding to the...

journal_title：Peptides

authors： Prak K,Maruyama Y,Maruyama N,Utsumi S

更新日期：2006-06-01 00:00:00

abstract：:Antimicrobial peptides allegedly exert their action on microbial membranes. Bovine lactoferrin enfold two antimicrobial domains, lactoferricin B (LFcin B) and lactoferrampin (LFampin). Effects of representative peptides thereof on the membranes of Candida albicans and Escherichia coli were investigated. Confocal laser...

journal_title：Peptides

authors： van der Kraan MI,van Marle J,Nazmi K,Groenink J,van 't Hof W,Veerman EC,Bolscher JG,Nieuw Amerongen AV

更新日期：2005-09-01 00:00:00

abstract：:The distribution of FMRFamide-like-immunoreactive peptides was investigated in the brain and pituitary of the elasmobranch fish Scyliorhinus canicula using the indirect immunofluorescence technique. FMRFamide-immunoreactive cells and fibers were mainly observed in the telencephalon and the diencephalon, while other br...

journal_title：Peptides

authors： Vallarino M,Salsotto-Cattaneo MT,Feuilloley M,Vaudry H

更新日期：1991-11-01 00:00:00

abstract：:We recently reported the direct inhibitory effect of adrenomedullin on caecal circular smooth muscle cells via cAMP system. This study was designed to determine whether the structurally related peptides to adrenomedullin (i.e.; calcitonin gene-related peptide (CGRP), calcitonin, and amylin) can inhibit the cholecystok...

journal_title：Peptides

authors： Ochiai T,Chijiiwa Y,Motomura Y,Yasuda O,Harada N,Nawata H

更新日期：2001-06-01 00:00:00

abstract：:Melanocortins (MCs) are multifunctional peptide hormones that regulate a diversity of physiological functions. MCs have been implicated in sexual function in animals. We document here that a MC analog, Melanotan II (MTII), can enhance sexual function in human males (erectile activity) and females (increased levels of ...

journal_title：Peptides

authors： Hadley ME

更新日期：2005-10-01 00:00:00

abstract：:Dissociated neurointermediate lobe cells (75%) bound [biotinyl-Ser1]corticotropin releasing hormone (bio-CRH) and secreted adrenocorticotropin [ACTH(25-39)] in a reverse hemolytic plaque assay (RHPA). The bio-CRH was rapidly internalized (less than 1 min) in vesicles and scattered vacuoles. Plaque percentages increase...

journal_title：Peptides

authors： Childs GV

更新日期：1990-07-01 00:00:00

abstract：:We have previously developed an in vitro model of rat brainstem explants. The latter release sizable amounts of calcitonin gene-related peptide (CGRP); basal release can be stimulated by such secretagogues as high KCl concentrations, veratridine or capsaicine. In this paradigm we investigated the activity of the analg...

journal_title：Peptides

authors： Greco MC,Lisi L,Currò D,Navarra P,Tringali G

更新日期：2014-06-01 00:00:00

abstract：:Recently we have demonstrated that replacing His(6) by constrained amino acids(2) in the well-known antagonist SHU-9119 resulted in potent and selective antagonist ligands especially at the hMC3R and hMC5 receptors. With the aim to further explore position 6 in the sequence of SHU-9119 and MT-II, we have designed, syn...

journal_title：Peptides

authors： Grieco P,Cai M,Han G,Trivedi D,Campiglia P,Novellino E,Hruby VJ

更新日期：2007-06-01 00:00:00

abstract：:In this Festschrift, I discuss the career and guiding principles to which Abba J. Kastin has adhered during the last 20 years we worked together. I briefly describe the history of our joint laboratory group, the context of studies of peptide permeation across the blood-brain barrier (BBB), and newer developments in th...

journal_title：Peptides

authors： Pan W

更新日期：2015-10-01 00:00:00

abstract：:Diapause pupae of the swallowtail butterfly Papilio xuthus L. exhibit diapause-green, orange and brownish-orange color polymorphism. Development of orange pupae involves a neuroendocrine factor inducing orange pupa (Orange-Pupa-Inducing Factor, OPIF), which is secreted from the head-thoracic region during late pharate...

journal_title：Peptides

authors： Yamanaka A,Adachi M,Imai H,Uchiyama T,Inoue M,Islam AT,Kitazawa C,Endo K

更新日期：2006-03-01 00:00:00

abstract：:Food deprivation and adrenalectomy are associated with low concentrations of leptin in blood and the absence of obesity. Because leptin is known to cross the blood-brain barrier (BBB) by a saturable transport system, we examined whether fasting and adrenalectomy (ADX) also act at the BBB. Multiple-time regression anal...

journal_title：Peptides

authors： Kastin AJ,Akerstrom V

更新日期：2000-05-01 00:00:00

abstract：:Growing evidence suggests that the neuropeptide Y (NPY) system plays an important role in the immune system. Yet, little is known about the expression of NPY and receptors in the immune system. Moreover, original contradicting results have confused the picture and hampered a clear understanding of its role in the immu...

journal_title：Peptides

authors： Wheway J,Herzog H,Mackay F

更新日期：2007-02-01 00:00:00

abstract：:Multiple-time regression analysis has been used to study the influx of radiolabeled peptides and polypeptides across the blood-brain barrier (BBB). This study used both tritiated and iodinated leptin to clarify several issues associated with these measurements. Recombinant murine leptin was radiolabeled with 3H by der...

journal_title：Peptides

authors： Kastin AJ,Akerstrom V,Pan W

更新日期：2001-12-01 00:00:00

abstract：:In this work, we characterized the active site in the alpha-melanotropin hormone (alpha-MSH) sequence responsible for the enhancement of cAMP production in incubated striatal slices by using different alpha-MSH fragments. We also analyzed the effects of the co-incubation of the SCH23390, a dopaminergic D(1) antagonist...

journal_title：Peptides

authors： Cecilia Cremer M,Silvina Sanchez M,Ester Celis M

更新日期：2000-06-01 00:00:00