Possible mechanisms of positive inotropic action of synthetic human calcitonin gene-related peptide in isolated rat atrium.

Abstract:

:The effect of synthetic human calcitonin gene-related peptide (hCGRP) on the isolated and electrically driven left atria of rats were investigated. The peptide at concentrations of 3 X 10(-9)-3 X 10(-7) M produced positive inotropic effects on the left atria in a dose-dependent manner. Verapamil (10(-5) M) and adenosine (10(-4) M) reduced the positive inotropic effect of hCGRP at concentrations of 3 X 10(-9) and 3 X 10(-8) M, but not at that of 3 X 10(-7) M. Ouabain (5 X 10(-5) M) inhibited the effect of hCGRP in concentrations of 3 X 10(-7) and 3 X 10(-8) M, but not in that of 3 X 10(-9) M. Simultaneous pretreatment with verapamil (10(-5) M) and ouabain (5 X 10(-5) M) suppressed the positive inotropy by hCGRP at all concentrations tested. On the other hand, tetrodotoxin (10(-6) M) potentiated only the positive inotropic effect of 3 X 10(-7) M hCGRP. Metoprolol (10(-7) M) and theophilline (10(-3) M) did not affect the inotropic effect of hCGRP. These results suggest that the positive inotropic effect of hCGRP is not mediated by beta-adrenoceptors but by two distinct mechanisms of action, which was inhibited by verapamil but not by ouabain (facilitation of Ca++ influx in lower concentrations of hCGRP) and which was blocked by ouabain but not by verapamil and potentiated by tetrodotoxin (inhibition of Na+/Ca++ exchange mechanism at higher concentrations of hCGRP).

journal_name

Peptides

journal_title

Peptides

authors

Satoh M,Oku R,Maeda A,Fujii N,Otaka A,Funakoshi S,Yajima H,Takagi H

doi

10.1016/0196-9781(86)90038-0

subject

Has Abstract

pub_date

1986-07-01 00:00:00

pages

631-5

issue

4

eissn

0196-9781

issn

1873-5169

pii

0196-9781(86)90038-0

journal_volume

7

pub_type

杂志文章

相关文献

PEPTIDES文献大全
  • L-prolyl-l-leucyl-glycinamide and its peptidomimetic analog 3(R)-[(2(S)-pyrrolidylcarbonyl)amino]-2-oxo-1-pyrrolidineacetamide (PAOPA) attenuate haloperidol-induced c-fos expression in the striatum.

    abstract::Acute treatment of rats with haloperidol results in a rapid and transient increase in striatal c-fos mRNA and Fos immunoreactivity. The induction of immediate early genes by haloperidol may be involved in the development of extrapyramidal side effects. L-Prolyl-L-leucyl-glycinamide (PLG, or MIF-1) has been observed to...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/s0196-9781(99)00194-1

    authors: Ott MC,Costain WJ,Mishra RK,Johnson RL

    更新日期:2000-02-01 00:00:00

  • Effects of intraplantar injections of nociceptin and its N-terminal fragments on nociceptive and desensitized responses induced by capsaicin in mice.

    abstract::Injection of capsaicin into the hindpaw has been employed as a model of chemogenic nociception in mice. Intraplantar injection of nociceptin (30-240 pmol) produced a significant and dose-dependent antinociceptive activity in the capsaicin test. The nociceptin N-terminal fragments, (1-11) and (1-13), were also active w...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2005.05.022

    authors: Sakurada T,Komatsu T,Moriyama T,Sasaki M,Sanai K,Orito T,Sakurada C,Sakurada S

    更新日期:2005-12-01 00:00:00

  • Nitric oxide synthesis inhibition attenuates behavioral actions of neuropeptide FF.

    abstract::Neuropeptide FF (NPFF) has certain antiopiate actions and may play a role in opiate tolerance and dependence. Third ventricle injection of 10 micrograms NPFF induces a quasimorphine abstinence syndrome in opiate-naive rats. Nitric oxide synthesis may also contribute to opiate tolerance and dependence. The present stud...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(96)00035-6

    authors: Malin DH,Lake JR,Jones JA,Morel J,Moon WD,Corbit BP,Smith DA,Claunch AE,Kacher D,Stevens PA,Webb SL

    更新日期:1996-01-01 00:00:00

  • Alterations in colonic corticotropin-releasing factor receptors in the maternally separated rat model of irritable bowel syndrome: differential effects of acute psychological and physical stressors.

    abstract::Early-life stress is a key predisposing factor to the development of functional gastrointestinal (GI) disorders. Thus, changes in stress-related molecular substrates which influence colonic function may be important in understanding the pathophysiology of such disorders. Activation of peripheral corticotropin-releasin...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2010.01.004

    authors: O'Malley D,Dinan TG,Cryan JF

    更新日期:2010-04-01 00:00:00

  • Purification and chemical characterization of caudodorsal cell hormone-II from the egg-laying controlling caudodorsal cells of Lymnaea stagnalis.

    abstract::Caudodorsal cell hormone-I (CDCH-I), a 36 amino acid peptide synthesized by the caudodorsal cells (CDCs), is one of the major neuropeptides present in the cerebral ganglia of the freshwater snail, Lymnaea stagnalis. This peptide induces ovulation and egg-mass formation, and, in addition, acts on neuronal circuits invo...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(92)90099-o

    authors: Li KW,Geraerts WP,Joosse J

    更新日期:1992-03-01 00:00:00

  • Motilin and a synthetic enkephalin induce colonic motor complexes (CMC) in the conscious dog.

    abstract::In the conscious dog migrating and nonmigrating colonic motor complexes (CMC) were recorded by means of chronically implanted strain gauge force transducers. Intravenous injection of a synthetic enkephalin analogue immediately induced a premature CMC at all three recording sites of the colon. Naloxone inhibited the en...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(88)90155-6

    authors: Bickel M,Belz U

    更新日期:1988-05-01 00:00:00

  • Neuropeptide-like precursor 4 is uniquely expressed during pupal diapause in the flesh fly.

    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

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2008.10.008

    authors: Li A,Rinehart JP,Denlinger DL

    更新日期:2009-03-01 00:00:00

  • Characterization and expression of the short neuropeptide F receptor in the African malaria mosquito, Anopheles gambiae.

    abstract::A short neuropeptide F (sNPF) precursor and a sNPF receptor (sNPFR) were characterized for the mosquito, Anopheles gambiae. The sNPFR was expressed in CHO-K1 cells, and it exhibited high affinity binding, IC(50) approximately 3-5 nM, for specific sNPFs. sNPF1 potently inhibited forskolin-stimulated cAMP production by ...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2006.09.019

    authors: Garczynski SF,Crim JW,Brown MR

    更新日期:2007-01-01 00:00:00

  • Thyrotropin releasing hormone (TRH) selectively binds and activates the melanocortin 1 receptor.

    abstract::We tested the endogenous tripeptide TRH (thyrotropin releasing hormone) ability to bind to MC (melanocortin) receptor subtypes. We discovered that TRH binds to the human MCI receptor expressed in COS cells and to murine B16 melanoma cells with 5790+/-1010 nM and 6370+/-1260 nM Ki's, respectively. TRH did not bind to t...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/s0196-9781(98)00168-5

    authors: Schiöth HB,Prusis P,Muceniece R,Mutulis F,Mutule I,Wikberg JE

    更新日期:1999-01-01 00:00:00

  • Parathyroid hormone binding sites in the brain.

    abstract::Parathyroid hormone (PTH) has been shown to have actions within the brain, suggesting the presence of central PTH receptors. This possibility was examined by determining the binding of 125I-labeled [Nle8,18,Tyr34]bovine PTH to the plasma membranes of rat and rabbit brains. Specific binding of the tracer to membranes o...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(93)90174-f

    authors: Harvey S,Hayer S

    更新日期:1993-11-01 00:00:00

  • Sympathetic nervous system-targeted neuropeptide Y overexpression in mice enhances neointimal formation in response to vascular injury.

    abstract::Sympathetic neurotransmitter neuropeptide Y (NPY) is associated with vascular remodelling, neointimal hyperplasia and atherosclerosis in experimental animal models and clinical studies. In order to study the role of sympathetic nerve-produced NPY in vascular diseases, transgenic mouse model overexpressing NPY in centr...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2008.12.009

    authors: Ruohonen ST,Abe K,Kero M,Toukola L,Ruohonen S,Röyttä M,Koulu M,Pesonen U,Zukowska Z,Savontaus E

    更新日期:2009-04-01 00:00:00

  • Peptide drug modifications to enhance bioavailability and blood-brain barrier permeability.

    abstract::Peptides have the potential to be potent pharmaceutical agents for the treatment of many central nervous system derived maladies. Unfortunately peptides are generally water-soluble compounds that will not enter the central nervous system, via passive diffusion, due to the existence of the blood-brain barrier. Peptides...

    journal_title:Peptides

    pub_type: 杂志文章,评审

    doi:10.1016/s0196-9781(01)00537-x

    authors: Witt KA,Gillespie TJ,Huber JD,Egleton RD,Davis TP

    更新日期:2001-12-01 00:00:00

  • Validation, role in perioperative assessment, and clinical applications of an immunoradiometric assay for human calcitonin.

    abstract::We have evaluated a new immunoradiometric assay (IRMA) for calcitonin (CT) (Medgenix, Belgium). The detection limit of immunoreactive CT (IR-CT) was 2.8 pg/ml, and plasma levels of IR-CT of 134 healthy adults (dynamic range, 2.8-1000 pg/ml) were < 19 pg/ml (median 4.1 pg/ml). Both basal and pentagastrin-stimulated IR-...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(94)00177-4

    authors: Wimalawansa SJ,Bailey F

    更新日期:1995-01-01 00:00:00

  • Circulating levels of lipocalin-2 are associated with fatty pancreas but not fatty liver.

    abstract::Lipocalin-2 (LCN-2), a peptide with diverse expression pattern, has been identified as a biomarker of various diseases as well as a factor contributing to inflammatory responses associated with excess adiposity and ensuing metabolic disorders. Although the inter-relationship between LCN-2 and excess adiposity is incre...

    journal_title:Peptides

    pub_type: 临床试验,杂志文章,多中心研究

    doi:10.1016/j.peptides.2019.170117

    authors: Singh RG,Nguyen NN,Cervantes A,Kim JU,Stuart CE,Petrov MS

    更新日期:2019-09-01 00:00:00

  • Sequence of small cardioactive peptide A: a second member of a class of neuropeptides in Aplysia.

    abstract::Previous studies have shown that the nervous system and other tissues of molluscs contain a number of peptides that potently excite molluscan hearts. Two such peptides, termed small cardioactive peptides A and B (SCPA and SCPB) are present in large quantities in the nervous system of Aplysia. These peptides are widely...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(87)90184-7

    authors: Lloyd PE,Kupfermann I,Weiss KR

    更新日期:1987-01-01 00:00:00

  • Urocortin and corticotropin-releasing factor receptor expression in the human colonic mucosa.

    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

    pub_type: 杂志文章

    doi:10.1016/s0196-9781(00)00335-1

    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

  • Effects of neuropeptide Y on food intake and brain biogenic amines in the rainbow trout (Oncorhynchus mykiss).

    abstract::Neuropeptide Y (NPY) is one of the most potent stimulants of food intake in mammals, but very little is known about NPY actions in fish. The present study investigated the role of NPY in food intake in the rainbow trout (Oncorhynchus mykiss). Food intake was monitored at different times after intracerebroventricular a...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2005.09.014

    authors: Aldegunde M,Mancebo M

    更新日期:2006-04-01 00:00:00

  • Using reduced amino acid composition to predict defensin family and subfamily: Integrating similarity measure and structural alphabet.

    abstract::Defensins are essentially ancient natural antibiotics with potent activity extending from lower organisms to humans. They can inhibit the growth or virulence of micro-organisms directly or indirectly enhance the host's immune system. The successful prediction of defensin peptides will provide very useful information a...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2009.06.032

    authors: Zuo YC,Li QZ

    更新日期:2009-10-01 00:00:00

  • Hemolymph and tissue-bound peptidase-resistant analogs of the insect allatostatins.

    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

    pub_type: 杂志文章

    doi:10.1016/s0196-9781(98)00149-1

    authors: Nachman RJ,Garside CS,Tobe SS

    更新日期:1999-01-01 00:00:00

  • Melanin concentrating hormone increase hippocampal synaptic transmission in the rat.

    abstract::A retrograde facilitation has been demonstrated in the one trial step-down inhibitory avoidance of melanin-concentrating hormone (MCH), when it was infused into rat hippocampal formation. Considering the high density of specific binding sites for the MCH peptide on the hippocampus and the participation of this structu...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/s0196-9781(01)00591-5

    authors: Varas M,Pérez M,Ramírez O,de Barioglio SR

    更新日期:2002-01-01 00:00:00

  • The action of a synthetic derivative of Met5-enkephalin-Arg6-Phe7 on behavioral and endocrine responses.

    abstract::The neuroendocrine and behavioral effects of Tyr-D-Ala-Gly-Phe-D-Nle-Arg-Phe (DADN), a more stable derivative of the endogenous opiate Met-enkephalin related peptide Met(5)-enkephalin-Arg(6)-Phe(7) were investigated in mice. The behavioral experiments consisted of monitoring the horizontal (square crossing) and vertic...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2011.05.029

    authors: Csabafi K,Jászberényi M,Bagosi Z,Tóth G,Wollemann M,Telegdy G

    更新日期:2011-08-01 00:00:00

  • Effect of intrahippocampal administration of anti-melanin-concentrating hormone on spatial food-seeking behavior in rats.

    abstract::Melanin-concentrating hormone (MCH) is a hypothalamic peptide that plays a critical role in the regulation of food intake and energy metabolism. In this study, we investigated the potential role of dense hippocampal MCH innervation in the spatially oriented food-seeking component of feeding behavior. Rats were trained...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2015.12.007

    authors: Sita LV,Diniz GB,Canteras NS,Xavier GF,Bittencourt JC

    更新日期:2016-02-01 00:00:00

  • Phoenixin-14 injected intracerebroventricularly but not intraperitoneally stimulates food intake in rats.

    abstract::Phoenixin, a recently discovered 20-amino acid peptide was implicated in reproduction. However, the expression in food intake-regulatory nuclei such as the paraventricular nucleus, the arcuate nucleus and the nucleus of the solitary tract suggests an implication of phoenixin in food intake regulation. Therefore, we in...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2017.08.004

    authors: Schalla M,Prinz P,Friedrich T,Scharner S,Kobelt P,Goebel-Stengel M,Rose M,Stengel A

    更新日期:2017-10-01 00:00:00

  • Goldfish gamma-preprotachykinin mRNA encodes the neuropeptides substance P, carassin, and neurokinin A.

    abstract::Two cDNAs, size 969 bp and 1146 bp respectively, encoding goldfish gamma-preprotachykinin (gamma-PPT) were identified. Both cDNAs contain the same 345 bp open reading frame. The deduced 114-amino acid gamma-PPT contains the sequence of substance P, carassin and neurokinin A. sequence analysis of the two cDNA 5'-untran...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/s0196-9781(97)00013-2

    authors: Lin XW,Peter RE

    更新日期:1997-01-01 00:00:00

  • Tachykinergic afferents to the rat arcuate nucleus. A combined immunohistochemical and retrograde tracing study.

    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

    pub_type: 杂志文章

    doi:10.1016/0196-9781(93)90042-f

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

    更新日期:1993-03-01 00:00:00

  • Studies on beta-endorphin and membrane-bound calcium interaction using chlorotetracycline (CTC) as a fluorescence probe.

    abstract::Studies on the in vitro interaction of beta-endorphin with different biomembrane preparations, measured in terms of Ca2+ induced chlorotetracycline (CTC) fluorescence alterations indicate that beta-endorphin causes release of calcium ion from both synaptosomal and erythrocyte membrane stores but not from rat brain mit...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(83)90131-6

    authors: Chakrabarti AK,Chatterjee TK,Ghosh JJ

    更新日期:1983-05-01 00:00:00

  • Antimicrobial properties of arginine- and lysine-rich histones and involvement of bacterial outer membrane protease T in their differential mode of actions.

    abstract::There is growing evidence of the antimicrobial properties of histones and histone-derived peptides; however, most of them are specific to lysine (Lys)-rich histones (H1, H2A, and H2B). In the present study, we focused on arginine (Arg)-rich histones (H3 and H4) and investigated their antimicrobial properties in compar...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2011.09.005

    authors: Tagai C,Morita S,Shiraishi T,Miyaji K,Iwamuro S

    更新日期:2011-10-01 00:00:00

  • Melanocortin-4 receptors, beta-MSH and leptin: key elements in the satiety pathway.

    abstract::This paper reviews aspects of our research, focusing on the role of the melanocortin system in the central regulation of feeding and energy balance, which was begun in 1997. It describes data from successive physiological studies, concerning the identity of the appetite-regulating melanocortin receptor, melanocortin-4...

    journal_title:Peptides

    pub_type: 杂志文章,评审

    doi:10.1016/j.peptides.2005.01.030

    authors: Harrold JA,Williams G

    更新日期:2006-02-01 00:00:00

  • C-terminal amidation of PACAP-38 and PACAP-27 is dispensable for biological activity at the PAC1 receptor.

    abstract::PACAP-27 and PACAP-38 are the exclusive physiological ligands for the mammalian PAC1 receptor. The role of C-terminal amidation of these ligands at that receptor was examined in neuroendocrine cells expressing the PAC1 receptor endogenously and in non-neuroendocrine cells in which the human and rat PAC1 receptors were...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/j.peptides.2016.03.003

    authors: Emery AC,Alvarez RA,Abboud P,Xu W,Westover CD,Eiden MV,Eiden LE

    更新日期:2016-05-01 00:00:00

  • Quantitative autoradiographic analysis of [125I]-human CGRP binding sites in the dorsal horn of rat following chronic constriction injury or dorsal rhizotomy.

    abstract::Quantitative receptor autoradiography was used to examine the binding of [125I]-human CGRP in the dorsal horn of the L4 spinal segment of rats with a chronic constriction injury (CCI) of the sciatic nerve or unilateral dorsal rhizotomies of spinal segments L1-L6. At the times selected for study, we found no change in ...

    journal_title:Peptides

    pub_type: 杂志文章

    doi:10.1016/0196-9781(91)90221-a

    authors: Garry MG,Kajander KC,Bennett GJ,Seybold VS

    更新日期:1991-11-01 00:00:00