Fruit fly behavior in response to chemosensory signals.

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：:Rubiscolin-6 (YPLDLF) is a delta selective opioid peptide isolated from the enzymatic digests of ribulose bisphosphate carboxylase/oxygenase (Rubisco) from spinach leaves. In a step-through type passive avoidance test in ddY mice, rubiscolin-6 enhanced memory consolidation at doses of 3nmol/mouse after intracerebroven...

journal_title：Peptides

authors： Yang S,Kawamura Y,Yoshikawa M

更新日期：2003-02-01 00:00:00

abstract：:We previously demonstrated that intracerebroventricular (i.c.v.) administration of the substance P (SP) aminoterminal fragment SP(1-7) attenuates the expression of morphine withdrawal in the male rat. In this study we have used a synthetic analogue of this peptide, i.e. the SP(1-7) amide showing higher binding potency...

journal_title：Peptides

authors： Zhou Q,Carlsson A,Botros M,Fransson R,Sandström A,Gordh T,Hallberg M,Nyberg F

更新日期：2009-12-01 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：:We have examined the distributions of ACTH, CCK and enkephalin immunoreactive nerves in the rat central nervous system and compared the pattern obtained with that of opiate receptors. In addition, a radioreceptor assay has been employed for studying the possible functional interactions between these peptides and opiat...

journal_title：Peptides

authors： Stengaard-Pedersen K,Larsson LI

更新日期：1981-01-01 00:00:00

abstract：:The monoclonal antibody 2F5 recognizing the neutralizing epitope ELDKWA on the C-domain could neutralize 90% of the investigated HIV-1 isolates. Low levels of ELDKWA-epitope-specific antibodies were observed in HIV-1-infected individuals. To induce high levels of antibodies to ELDKW-epitope, C-domain peptide (P2) was ...

journal_title：Peptides

authors： Liao M,Lu Y,Xiao Y,Dierich MP,Chen Y

更新日期：2000-04-01 00:00:00

abstract：:The melanocortin system plays an important role in energy homeostasis as well as skin pigmentation, steroidogenesis and exocrine gland function. In this study, we examined eight Ac-His-Phe-Arg-Trp-NH(2) tetrapeptides that were modified at the Phe position and pharmacologically characterized their activities at the hum...

journal_title：Peptides

authors： Chen M,Georgeson KE,Harmon CM,Haskell-Luevano C,Yang Y

更新日期：2006-11-01 00:00:00

abstract：:Rhesus monkey MCH-R1 and MCH-R2 receptors were cloned. Amino acid homology is 98.8% between monkey and human MCH-R1, while monkey and human MCH-R2 are 98% homologous. Binding and intracellular signaling characteristics of the monkey receptors were compared with the human homologues. The results demonstrate that MCH bi...

journal_title：Peptides

authors： Fried S,O'Neill K,Hawes BE

更新日期：2002-08-01 00:00:00

abstract：:Binding sites in the rat forebrain were characterized using (125I-Tyr4)bombesin as a receptor probe. Pharmacology experiments indicate that gastrin releasing peptide (GRP) and the GRP fragments GRP as well as Ac-GRP inhibited radiolabeled (Tyr4)bombesin binding with high affinity. Biochemistry experiments indicated th...

journal_title：Peptides

authors： Wolf SS,Moody TW

更新日期：1985-01-01 00:00:00

abstract：:Deltorphin, a heptapeptide that selectively binds to delta receptors, was intracerebroventricularly administered to mice belonging to the strains C57BL/6 and DBA/2 immediately after training in a one-trial inhibitory avoidance task. The retention performance of both strains was improved by the peptide administration, ...

journal_title：Peptides

authors： Pavone F,Populin R,Castellano C,Kreil G,Melchiorri P

更新日期：1990-05-01 00:00:00

abstract：:The objective of this study was to explore the effects of the endogenous opioid peptide dynorphin A(1-13) on the CNS regulation of blood pressure and heart rate. Wistar rats, anesthetized with pentobarbital and halothane, received dynorphin A(1-13) microinjected into the anterior hypothalamus area (AHA), the posterior...

journal_title：Peptides

authors： Rabkin SW

更新日期：1993-11-01 00:00:00

abstract：:We have previously reported that hypoxia activates corticotrophin-releasing hormone (CRH) and the expression of its type-1 receptor (CRHR1) and induces disorders of the brain-endocrine-immune network. p53 is activated by hypoxia and involved in tumorigenesis and apoptosis. Whether CRHR1 regulates p53 transactivation t...

journal_title：Peptides

authors： Zhao Y,Wang MY,Hao K,Chen XQ,Du JZ

更新日期：2013-06-01 00:00:00

abstract：:The immunoregulatory role of methionine-enkephalin (Met-enk) is well studied in mammals, but has not been explored in ectotherms despite the fact that this peptide is highly conserved in vertebrates. The present study demonstrates the diverse effects of Met-enk depending on its concentration and specific function of s...

journal_title：Peptides

authors： Singh R,Rai U

更新日期：2009-06-01 00:00:00

abstract：:Large species differences have been previously observed in the pharmacology of bradykinin (BK) B2 receptor antagonists. We investigated the effect of two novel non-peptide antagonists, compound 9 (a benzodiazepine peptidomimetic related to icatibant) and the thiosemicarbazide bradyzide on the rabbit B2 receptor (contr...

journal_title：Peptides

authors： Marceau F,Houle S,Bouthillier J,Said NB,Garratt PJ,Dziadulewicz EK

更新日期：2001-09-01 00:00:00

abstract：:Plasma adrenomedullin (AM) levels are elevated in various pathological states including cardiovascular and inflammatory diseases. The present study investigated whether an increased AM level is a marker of vascular complications in patients with atherosclerotic risks. In 114 patients with cardiovascular risks and/or d...

journal_title：Peptides

authors： Suzuki Y,Horio T,Nonogi H,Hayashi T,Kitamura K,Eto T,Kangawa K,Kawano Y

更新日期：2004-08-01 00:00:00

abstract：:The gut-derived hormone peptide YY (PYY) is most commonly known for its effect on satiety, decreasing food intake and body weight in animals and humans. However, PYY is also involved in a wide range of digestive functions including regulating insulin secretion and glucose homeostasis. Over the last few years, there ha...

journal_title：Peptides

authors： Boey D,Sainsbury A,Herzog H

更新日期：2007-02-01 00:00:00

abstract：:The effects of atrial natriuretic factor (ANF) on [3H]norepinephrine ([3H]NE) release evoked by a sodium-free medium (SFM) were studied. Experiments were performed in rat adrenal medulla slices incubated in vitro. Results showed that [3H]NE release evoked by the omission of Na+ was decreased by 10 nM ANF. In addition,...

journal_title：Peptides

authors： Vatta MS,Papouchado ML,Bianciotti LG,Fernandez BE

更新日期：1994-01-01 00:00:00

abstract：:It is well known that glucoprivation induces the release of counterregulatory hormones such as glucagon, and that the response is attenuated when the stimuli are repeated. Glucoprivation also activates orexigenic neurons and induces hyperphagic responses, although it remains unclear whether these responses are attenua...

journal_title：Peptides

authors： Ozawa Y,Arima H,Watanabe M,Shimizu H,Ito Y,Banno R,Sugimura Y,Ozaki N,Nagasaki H,Oiso Y

更新日期：2011-04-01 00:00:00

abstract：:Increasing evidence suggests a role for ghrelin in the control of articular inflammatory diseases like osteoarthritis (OA). In the present study we examined the ability of ghrelin to counteract LPS-induced necrosis and apoptosis of chondrocytes and the involvement of GH secretagogue receptor (GHS-R)1a in the protectiv...

journal_title：Peptides

authors： Ceriotti S,Consiglio AL,Casati L,Cremonesi F,Sibilia V,Ferrucci F

更新日期：2018-05-01 00:00:00

abstract：:We examined the effects of tumor necrosis factor (TNF)-alpha on the expression and functionality of adrenomedullin (AM) receptors in cultured human coronary artery smooth muscle cells. Analysis of real-time quantitative polymerase chain reactions showed that these cells abundantly express two AM receptors comprised of...

journal_title：Peptides

authors： Nagoshi Y,Kuwasako K,Cao YN,Imamura T,Kitamura K,Eto T

更新日期：2004-07-01 00:00:00

abstract：:CRF system, structural conservation, has an association with feeding regulation in mammals. However, mammals and fish have different physiological mechanisms, the potential role of CRF system for feeding regulation in teleost fish are most unknown. To better explore possible feeding mechanisms of CRF system in Acipens...

journal_title：Peptides

authors： Qi J,Xu S,Wang M,Chen H,Tang N,Wang B,Li Y,Zhang X,Chen D,Zhou B,Zhao L,Wang Y,Li Z

更新日期：2020-06-01 00:00:00

abstract：:Peptides may act through G protein-coupled receptors to influence cardiovascular performance; thus, delineating mechanisms involved in signaling is a molecular-based strategy to influence health. Molecular switches, often represented by conserved motifs, maintain a receptor in an inactive state. However, once the swit...

journal_title：Peptides

authors： Rasmussen M,Leander M,Ons S,Nichols R

更新日期：2015-09-01 00:00:00

abstract：:To characterize the endothelin (ET) receptor that mediates the contraction induced by ET-1 in the porcine myometrium, we carried out a contraction study, radioligand binding study and molecular study (reverse transcription polymerase chain reaction) for detection of ET receptor-coding genes (mRNA). ET-1 (1 nM-1 microM...

journal_title：Peptides

authors： Isaka M,Takaoka K,Yamada Y,Abe Y,Kitazawa T,Taneike T

更新日期：2000-04-01 00:00:00

abstract：:Immunohistochemical studies were conducted on rat brainstem using a specific polyclonal antiserum against the COOH-terminal (25-37) of human amylin. Amylin-immunoreactive cell bodies were observed in the vestibular, cochlear, trapezoid, and inner cerebellar nuclei and in the mesencephalic nucleus of trigeminal nerve. ...

journal_title：Peptides

authors： D'Este L,Casini A,Wimalawansa SJ,Renda TG

更新日期：2000-11-01 00:00:00

abstract：:Vascular permeability and endothelial cell damage has been shown to occur in rats subjected to trauma with hemorrhagic-shock. Although the factors responsible for the endothelial cell injury are unknown, it has been hypothesized that toxic factors produced in response to hemorrhagic-shock originate in the gut and are ...

journal_title：Peptides

authors： Kaiser VL,Sifri ZC,Senthil M,Dikdan GS,Lu Q,Xu DZ,Deitch EA

更新日期：2005-12-01 00:00:00

abstract：:We report herein the isolation and characterization of a novel glycine-rich antimicrobial peptide purified from the larvae of Drosophila virilis. A range of chromatographic methods was used for isolation and its antibacterial activity against Bacillus subtilis was employed to screen for the most active fractions. The ...

journal_title：Peptides

authors： Lu J,Chen ZW

更新日期：2010-01-01 00:00:00

abstract：:Epithelial to mesenchymal transition (EMT), a process whereby fully differentiated epithelial cells transition to a mesenchymal phenotype, has been implicated in the pathogenesis of renal fibrosis. Apelin, a bioactive peptide, has recently been recognized to protect against renal profibrotic activity, but the underlyi...

journal_title：Peptides

authors： Wang LY,Diao ZL,Zheng JF,Wu YR,Zhang QD,Liu WH

更新日期：2017-10-01 00:00:00

abstract：:Tight junctions (TJ) control paracellular permeability and apical-basolateral polarity of epithelial cells. Dysregulated permeability is associated with pathological conditions, such as celiac disease and inflammatory bowel disease. TJ formation is dependent on E-cadherin-mediated cell-cell adhesion and actin rearrang...

journal_title：Peptides

authors： Gopalakrishnan S,Tripathi A,Tamiz AP,Alkan SS,Pandey NB

更新日期：2012-05-01 00:00:00

abstract：:Phylloseptins are antimicrobial peptides of 19-20 residues which are found in the skin secretions of the Phyllomedusa frogs that inhabit the tropical forests of South and Central Americas. The peptide sequences of PS-1, -2, and -3 carry an amidated C-terminus and they exhibit 74% sequence homology with major variation...

journal_title：Peptides

authors： Resende JM,Moraes CM,Prates MV,Cesar A,Almeida FC,Mundim NC,Valente AP,Bemquerer MP,Piló-Veloso D,Bechinger B

更新日期：2008-10-01 00:00:00

abstract：:VIP and secretin control the secretory function of the normal pancreas. We analysed their regulatory functions in a human pancreatic cancer cell line: Capan-1. Saturation binding experiments with 125I-VIP showed the existence of one class of binding sites of very high affinity: KD 6.4 +/- 3.0 X 10(-11) M and a low Bma...

journal_title：Peptides

authors： Ruellan C,Scemama JL,Clerc P,Fagot-Revurat P,Clemente F,Ribet A

更新日期：1986-01-01 00:00:00