Characterization of a new bioactive peptide from Potamotrygon gr. orbignyi freshwater stingray venom.

abstract：:In 1989, the development of specific angiotensin receptor antagonists which distinguish between two angiotensin receptor subtypes (AT1 and AT2) led to a breakthrough in angiotensin research. It turned out, that the AT1 receptor was almost entirely responsible for the "classical" actions of angiotensin II related to th...

journal_title：Peptides

authors： Steckelings UM,Kaschina E,Unger T

更新日期：2005-08-01 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：:Thirty viral proteomes were examined for amino acid sequence similarity to the human proteome, and, in parallel, a control of 30 sets of human proteins was analyzed for internal human overlapping. We find that all of the analyzed 30 viral proteomes, independently of their structural or pathogenic characteristics, pres...

journal_title：Peptides

authors： Kanduc D,Stufano A,Lucchese G,Kusalik A

更新日期：2008-10-01 00:00:00

abstract：:Kisspeptins are biologically active cleavage peptides of the KiSS-1 gene products with important roles in the suppression of tumor metastasis and in the reproduction. The aim of the present study is to clarify changes of the expression of kisspeptins and kisspeptin receptor in the kidney with and without chronic renal...

journal_title：Peptides

authors： Shoji I,Hirose T,Mori N,Hiraishi K,Kato I,Shibasaki A,Yamamoto H,Ohba K,Kaneko K,Morimoto R,Satoh F,Kohzuki M,Totsune K,Takahashi K

更新日期：2010-10-01 00:00:00

abstract：:Paramyosin of the pig-human parasite Taenia solium (TPmy) is a α-helical protein located on the worm surface that is suggested to fulfill an immunomodulatory role protecting the parasite against host immune system. Besides, in challenging experiments the protein shows a vaccine potential. These observations imply that...

journal_title：Peptides

authors： Gazarian KG,Solis CF,Gazarian TG,Rowley M,Laclette JP

更新日期：2012-03-01 00:00:00

abstract：:Cholecystokinin octapeptides (CCK8s) have been purified from methanol extracts of two brains from each of two Australian marsupials, Tammar Wallaby and Eastern Quoll, containing 3 nmol and 2 nmol of the peptides, respectively. Immunoreactive CCK was concentrated on QMA SepPak cartridges and purified by two successive ...

journal_title：Peptides

authors： Fan ZW,Eng J,Shaw G,Yalow RS

更新日期：1988-03-01 00:00:00

abstract：:The evolution, function and interaction of ligand-receptor pairs are of major pharmaceutical interest. Comparative sequence analysis approaches using data from phylogenetically distant organisms can provide insights into their origin and possible physiological roles. The present review focuses on the pituitary adenyla...

journal_title：Peptides

authors： Cardoso JC,Vieira FA,Gomes AS,Power DM

更新日期：2007-09-01 00:00:00

abstract：:Previously, calcitonin gene-related peptide (CGRP) decreased food intake when administered ICV but not when administered peripherally to rats. Amylin, which has a close structural homology to CGRP, reduced food intake administered IP at concentrations higher than those previously tested for CGRP. We examined the effec...

journal_title：Peptides

authors： Morley JE,Farr SA,Flood JF

更新日期：1996-01-01 00:00:00

abstract：:It has been proved that input of specific electroacupuncture (EA) can activate beta-endorphin(beta-EP)ergic and noradrenergic neurons projecting to the rostral ventrolateral medulla (RVL), the latter acting upon the RVL-GABAergic interneurons, thereby produce depressor effect. The present study further shows that: (1)...

journal_title：Peptides

authors： Ku YH,Chang YZ

更新日期：2001-09-01 00:00:00

abstract：:Peptides are an important class of molecules with diverse biological activities. Many endogenous peptides, especially neuropeptides and peptide hormones, play critical roles in development and regulating homeostasis. Furthermore, as drug candidates their high receptor selectivity and potent binding leads to reduced of...

journal_title：Peptides

authors： Apostol CR,Hay M,Polt R

更新日期：2020-09-01 00:00:00

abstract：:VIP and related fragments were prepared by the solid-phase method. The peptides were assembled on a benzhydrylamine resin and couplings of the Boc-amino acids were carried out by the symmetrical anhydride method. Cleavage was achieved by treatment with liquid HF and purification was accomplished by successive steps of...

journal_title：Peptides

authors： Fournier A,Saunders JK,St-Pierre S

更新日期：1984-03-01 00:00:00

abstract：:Phalloidin staining F-actin was used to image muscle fiber arrangements present in the reproductive system of the adult female Rhodnius prolixus. A mesh of muscle fibers encircles the ovaries whereas a criss-cross pattern of finer muscle fibers covers each ovariole. Two layers of muscle fibers (arranged longitudinally...

journal_title：Peptides

authors： Sedra L,Lange AB

更新日期：2014-03-01 00:00:00

abstract：:Subpopulations of dopamine (DA) neurons in the ventral mesencephalon have been reported to contain cholecystokinin (CCK) and neurotensin (NT), giving rise to DA, DA/NT, NT/CCK and DA/CCK/NT projections. More precisely, colocalized DA/CCK neurons project mainly to the caudal part of the medial nucleus accumbens, wherea...

journal_title：Peptides

authors： Heidbreder C,Gewiss M,De Mot B,Mertens I,De Witte P

更新日期：1992-05-01 00:00:00

abstract：:As part of a continuing search for potential anticancer drug candidates from antimicrobial peptides of marine organisms, tilapia (Oreochromis mossambicus) hepcidin TH2-3 was evaluated in several tumor cell lines. The results indicated that TH2-3, a synthetic 20-mer antimicrobial peptide, specifically inhibited human f...

journal_title：Peptides

authors： Chen JY,Lin WJ,Lin TL

更新日期：2009-09-01 00:00:00

abstract：:The thyroid gland is known to harbor cholinergic and VIPergic nerves. In the present study, the influences of cholinergic stimulation by carbachol, cholinergic blockade by methylatropine and stimulation with various VIP sequences on basal, TSH-induced and VIP-induced thyroid hormone section were investigated in vivo i...

journal_title：Peptides

authors： Ahrén B

更新日期：1985-07-01 00:00:00

abstract：:A novel peptide, de7b, was isolated from the venom of Conus delessertii, a worm-hunting species collected in the Caribbean Sea off the Yucatan Peninsula. Its primary structure was determined by automated Edman degradation and confirmed by mass spectrometry: it contains 28 amino acids, including six Cys residues. Pepti...

journal_title：Peptides

authors： Aguilar MB,Flores-Torres A,Batista CV,Falcón A,López-Vera E,de la Cotera EP

更新日期：2009-03-01 00:00:00

abstract：:Irisin was first identified in skeletal muscle cells, but its precise location has not yet been demonstrated, and there is limited information about irisin protein in other human and rat tissues. The present immunohistochemical study was undertaken to screen skeletal muscle and other tissues for irisin immunoreactivit...

journal_title：Peptides

authors： Aydin S,Kuloglu T,Aydin S,Kalayci M,Yilmaz M,Cakmak T,Albayrak S,Gungor S,Colakoglu N,Ozercan IH

更新日期：2014-11-01 00:00:00

abstract：:In this study we investigated the role that dopaminergic pathways play in the miotic effect exerted by neurotensin after intracameral administration. Neurotensin was injected into the anterior chamber (AC) at a dose of 30 micrograms to 4 groups of albino rabbits which had previously undergone the following treatment: ...

journal_title：Peptides

authors： Tassorelli C,Spampinato D,Caruso P,Cavaliere S,Micieli G,Drago F,Nappi G

更新日期：1990-11-01 00:00:00

abstract：:Antimicrobial peptides, molecules produced in many different organisms, have high biocidal activity against several microorganisms. However, several questions about these molecules remain unclear. Therefore, this report details a systematic survey of the literature on the use of antimicrobial peptides against oral pat...

journal_title：Peptides

authors： da Silva BR,de Freitas VA,Nascimento-Neto LG,Carneiro VA,Arruda FV,de Aguiar AS,Cavada BS,Teixeira EH

更新日期：2012-08-01 00:00:00

abstract：:Neuropeptide Y (NPY) induces feeding in previously satiated animals after injection into the hypothalamus, especially the perifornical region (PFH). NPY also appears to have rewarding properties as evidenced by its ability to produce a conditioned place preference following injection into the nucleus accumbens (N.Acc)...

journal_title：Peptides

authors： Brown CM,Fletcher PJ,Coscina DV

更新日期：1998-01-01 00:00:00

abstract：:Kyotorphin is a unique biologically active neuropeptide (l-tyrosine-l-arginine), which is reported to have opioid-like analgesic actions through a release of Met-enkephalin from the brain slices. N-methyl-l-tyrosine-l-arginine (NMYR), an enzymatically stable mimetic of kyotorphin, successfully caused potent analgesic ...

journal_title：Peptides

authors： Neyama H,Hamada Y,Tsukahara R,Narita M,Tsukamoto K,Ueda H

更新日期：2018-09-01 00:00:00

abstract：:Kiss1 mRNA and its corresponding peptide products, kisspeptins, are expressed in two restricted brain areas of rodents, the anteroventral periventricular nucleus (AVPV) and the arcuate nucleus (ARC). The concentration of mature kisspeptins may not directly correlate with Kiss1 mRNA levels, because mRNA translation and...

journal_title：Peptides

authors： Overgaard A,Tena-Sempere M,Franceschini I,Desroziers E,Simonneaux V,Mikkelsen JD

更新日期：2013-07-01 00:00:00

abstract：:Neurotensin (NT) is a tridecapeptide (less than Glu-Leu-Tyr-Glu-Asn-Lys-Pro-Arg-Arg-Pro-Tyr-Ile-Leu-OH). It has been suggested that the naturally occurring neurotensin in (Gln4)-NT and that it can be hydrolysed to (Glu4)-NT during extraction. The aim of the present study was to determine whether the neurotensin found ...

journal_title：Peptides

authors： Theodorsson-Norheim E

更新日期：1983-07-01 00:00:00

abstract：:The hypothalamic neuropeptide orexin A (hypocretin-1) is a key signal in sleep/wake regulation and promotes food intake. We investigated the relationship between cerebrospinal fluid orexin A concentrations and body composition in non-narcoleptic human subjects with a wide range of body weight to gain insight into the ...

journal_title：Peptides

authors： Santiago JCP,Otto M,Kern W,Baier PC,Hallschmid M

更新日期：2018-04-01 00:00:00

abstract：:The effects of acute and subchronic administration of chlordiazepoxide (CDZ) on [3H][3-methyl-histidyl2]thyrotropin-releasing hormone binding to thyrotropin-releasing hormone (TRH) receptors in membrane preparations from various regions of rat brain were examined. Acute administration of CDZ (50 mg/kg x 3 within 24 h)...

journal_title：Peptides

authors： Shimoda K,Mason GA,Walker CH,Garbutt JC,Prange AJ Jr

更新日期：1991-01-01 00:00:00

abstract：:This study aims to examine the antidepressant-like action of Ghrelin (Ghr), a hormone synthesized predominantly by gastrointestinal endocrine cells and released during periods of negative energy balance, in two behavioral models: tail suspension test (TST), a predictive model of antidepressant activity, and the olfact...

journal_title：Peptides

authors： Carlini VP,Machado DG,Buteler F,Ghersi M,Ponzio MF,Martini AC,Schiöth HB,de Cuneo MF,Rodrigues AL,de Barioglio SR

更新日期：2012-06-01 00:00:00

abstract：:An important role for angiotensin IV (Ang IV) in the processes of learning and memory has now been well established. We have previously found that intracerebroventricular (ICV) administration of Ang IV as well as des-Phe6-Ang IV enhances learning of conditioned avoidance responses (CARs), facilitates recall of a passi...

journal_title：Peptides

authors： Braszko JJ

更新日期：2004-07-01 00:00:00

abstract：:A lectin was isolated from extracts of fruiting bodies of the mushroom Xerocomus spadiceus using a procedure that involved ion exchange chromatography on DEAE-cellulose, affinity chromatography on Affi-gel blue gel, ion exchange chromatography on CM-cellulose, and gel filtration by fast protein liquid chromatography o...

journal_title：Peptides

authors： Liu Q,Wang H,Ng TB

更新日期：2004-01-01 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：:Because plasma levels of protein C (PC) or activated protein C (APC) are altered in certain diseases associated with vascular dysfunction, and APC has therapeutic potential in preventing microvascular coagulation in severe sepsis, potential vascular effects of PC and APC were compared to those of the vasoactive peptid...

journal_title：Peptides

authors： Bhattacharya A,Grinnell BW,Cohen ML

更新日期：2000-08-01 00:00:00