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Showing 1-30 of 36 results for "G1887" within Papers
Arkadiusz Gruchlik et al.
Acta poloniae pharmaceutica, 69(6), 1303-1306 (2013-01-05)
Cosmeceuticals represent a marriage between cosmetics and pharmaceuticals. There are numerous cosmeceutically active products which can be broadly classified into the following categories: antioxidants, oligopeptides, growth factors and pigment lightning agents. Much attention has been focused on the tripeptides such
M Kawase et al.
Biological & pharmaceutical bulletin, 22(9), 999-1001 (1999-10-08)
A tripeptide growth factor, glycyl-L-histidyl-L-lysine (GHK), was immobilized on the surface of poly(vinylalcohol)-quarternized stilbazole (PVA-SbQ) gel. The photoreactive substance, 4-(3-trifluoromethylazirino)benzoyl-N-hydroxysuccinimide (TDBA-OSu), was employed to link the gel and ligand GHK. The density of immobilized GHK was 70 nmol/cm2. Isolated rat
Vadivel Arul et al.
Life sciences, 80(4), 275-284 (2006-10-20)
Chronically elevated blood glucose levels result in reduced leukocyte function and cell malnutrition, which contribute to a high rate of wound infection and associated healing problems in diabetic patients. In the present study, the role of biotinylated GHK peptide (BioGHK)
Fang Feng et al.
Frontiers in oncology, 11, 718578-718578 (2021-10-16)
Iodide uptake and the metabolism of thyroid cells are regulated by thyrotropin (TSH)-TSH receptor (TSHR) signaling. Thus, it is necessary to elevate serum TSH levels by T4 withdraw or rTSH administration to facilitate radioiodide (131I) therapy for differentiated thyroid cancer
Giangiacomo Beretta et al.
Journal of pharmaceutical and biomedical analysis, 47(3), 596-602 (2008-04-02)
Acrolein (ACR) is a well-known carbonyl toxin produced by lipid peroxidation of polyunsaturated fatty acids, which is involved in several life-threatening pathologies such as Alzheimer disease, arteriosclerosis, diabetes, and nephropathy. The aim of this work was to study the quenching
A Siméon et al.
Life sciences, 67(18), 2257-2265 (2000-10-25)
Glycyl-histidyl-lysine-Cu2+ (GHK-Cu) is a tripeptide-copper complex known to be a potent wound healing agent. We previously showed its ability to stimulate in vitro and in vivo the synthesis of extracellular matrix components. The aim of this study was to determine
Ana Trapaidze et al.
Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry, 17(1), 37-47 (2011-09-08)
The peptides Asp-Ala-His-Lys (DAHK) and Gly-His-Lys (GHK) are naturally occurring Cu(II)-chelating motifs in human serum and cerebrospinal fluid. Here, the sensitive thermodynamic technique isothermal titration calorimetry was used to study the energetics of Cu(II) binding to DAHK and GHK peptides
A Shimasue et al.
Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association, 123(1), 48-54 (2014-10-15)
Detection and analysis of a small subpopulation of cells such as stem cells or cancer stem cells are recognized to be a key technique in a recent regeneration and cancer science. However, in the thyroid, no marker that identifies stem
M Yu Smakhtin et al.
Bulletin of experimental biology and medicine, 133(6), 586-587 (2002-11-26)
Ten intraperitoneal injections of tripeptide Gly-His-Lys in doses of 1.5, 5, 50, 150, and 450 mg/kg stimulated mitotic activity of hepatocytes and dose-dependently suppressed immune reactivity (number of antibody-producing cells and delayed-type hypersensitivity reaction).
A synthetic tripeptide which increases survival of normal liver cells, and stimulates growth in hepatoma cells.
L Pickart et al.
Biochemical and biophysical research communications, 54(2), 562-566 (1973-09-18)
Noah P Parker et al.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 149(3), 384-389 (2013-06-08)
To evaluate clinical and immunohistopathological effects of topical glycyl-histidyl-lysine-copper (GHK-Cu) on in vivo irradiated rat wounds. Animal model. Academic institution. After dorsal irradiation and a 28-day recovery period, 2 × 8 cm cranially based dorsal flaps were created in Sprague-Dawley
Y Zheng et al.
Organic letters, 3(21), 3277-3280 (2001-10-12)
[structure: see text]. A new fluorescent chemosensor for Cu2+ ions was synthesized by modifying the tripeptide glycyl-histidyl-lysine (GHK) with 9-carbonylanthracene via the standard Fmoc solid-phase peptide synthesis method. While significant fluorescence quenching was observed from the molecule upon binding with
Timuçin Uğurlu et al.
Drug development and industrial pharmacy, 37(11), 1282-1289 (2011-04-05)
Glycyl-L-histidyl-L-lysine-Cu(II) (GHK-Cu(2+))-loaded Zn-pectinate microparticles in the form of hydroxypropyl cellulose (HPC) compression-coated tablets were prepared and their in vitro behavior tested. GHK-Cu(2+) delivery to colon can be useful for the inhibition of matrix metalloproteinase, with the increasing secretion of tissue
Fibroblast-cytokine-extracellular matrix interactions in wound repair.
A Siméon et al.
Current topics in pathology. Ergebnisse der Pathologie, 93, 95-101 (1999-05-26)
A Siméon et al.
The Journal of investigative dermatology, 115(6), 962-968 (2000-12-20)
Glycyl-histidyl-lysine-Cu(2+) is a tripeptide-copper complex previously shown to be an activator of wound healing. We have investigated the effects of glycyl-histidyl-lysine-Cu(2+) on the synthesis of glycosaminoglycans and small proteoglycans in a model of rat experimental wounds and in rat dermal
Karolina Bossak-Ahmad et al.
International journal of molecular sciences, 21(17) (2020-09-02)
The tripeptide NH2-Gly-His-Lys-COOH (GHK), cis-urocanic acid (cis-UCA) and Cu(II) ions are physiological constituents of the human body and they co-occur (e.g., in the skin and the plasma). While GHK is known as Cu(II)-binding molecule, we found that urocanic acid also
L Pickart et al.
Journal of chromatography, 175(1), 65-73 (1979-07-11)
Isolation and purification of growth-modulating peptides from biological sources is often accompanied by excessive losses of bioactive material. During the isolation of a growth-modulating tripeptide glycylhistidyllysine (GHL) from human plasma, copper and iron were found to co-isolate with the peptide.
Christelle Hureau et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 17(36), 10151-10160 (2011-07-23)
The Gly-His-Lys (GHK) peptide and the Asp-Ala-His-Lys (DAHK) sequences are naturally occurring high-affinity copper(II) chelators found in the blood plasma and are hence of biological interest. A structural study of the copper complexes of these peptides was conducted in the
Wen Jiang et al.
Analytical chemistry, 75(11), 2768-2774 (2003-09-02)
A novel capillary with covalently bonded zwitterionic surface modification was prepared by photograft polymerization of the zwitterionic monomer N,N-dimethyl-N-methacryloxyethyl-N-(3-sulfopropyl)ammonium betaine, onto the inner surface of a UV-transparent fused-silica capillary. Although the zwitterionic moieties in the resulting polymeric "tentacles" comprise both
Growth-modulating human plasma tripeptide: relationship between molecular structure and DNA synthesis in hepatoma cells.
L Pickart et al.
FEBS letters, 104(1), 119-122 (1979-08-01)
Jingyuan Xiong et al.
Drug and chemical toxicology, 41(4), 501-508 (2017-11-17)
Thyroid hormones are involved in many important physiological activities including regulation of energy metabolism, development of nervous system, maintenance of cerebral functions, and so on. Endocrine-disrupting chemicals (EDCs) that interfere with thyroid functions raise serious concerns due to their frequent
Seth Bradford et al.
Journal of inorganic biochemistry, 103(6), 871-875 (2009-04-24)
The reactivity of [Cu2+.Lys-Gly-His-Lys-NH2]2+ and [Cu2+.Lys-Gly-His-Lys]+ toward tRNA(Phe) has been evaluated. The amidated and carboxylate forms of the copper peptides display complex binding behavior with strong and weak sites evident (K(D1)(app) approximately 71 microM, K(D2)(app) approximately 211 microM for the
Sai-Chuen Fu et al.
Journal of orthopaedic research : official publication of the Orthopaedic Research Society, 33(7), 1024-1033 (2015-03-04)
After anterior cruciate ligament reconstruction (ACLR), the biological healing of the graft is a rate-limiting step which can contribute to graft failure. The tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu(II) (GHK-Cu) is a well-known activator of tissue remodeling. We investigated whether GHK-Cu can improve
Jurij J Hostynek et al.
Inflammation research : official journal of the European Histamine Research Society ... [et al.], 59(11), 983-988 (2010-08-13)
The skin retention and penetration characteristics of copper applied as glycyl-L-histidyl-L-lysine cuprate diacetate were evaluated in vitro in order to assess the potential for its transdermal delivery as anti-inflammatory agent. Flow-through diffusion cells with 1 cm(2) exposure area were used
Panayota Kolypetri et al.
Thyroid : official journal of the American Thyroid Association, 24(7), 1170-1178 (2014-03-26)
Enhanced iodide intake in NOD.H2(h4) mice accelerates the incidence and severity of spontaneous autoimmune thyroiditis (SAT) via an unknown mechanism. A plausible hypothesis is that iodide-induced apoptosis of thyrocytes can create imbalances in antigenic load and/or disruption of immunoregulatory mechanisms
A Siméon et al.
The Journal of investigative dermatology, 112(6), 957-964 (1999-06-26)
We investigated the expression and activation of matrix metalloproteinases in a model of experimental wounds in rats, and their modulation by glycyl-L-histidyl-L-lysine-Cu(II), a potent activator of wound repair. Wound chambers were inserted under the skin of Sprague-Dawley rats and received
Sherman O Canapp et al.
Veterinary surgery : VS, 32(6), 515-523 (2003-12-03)
To evaluate the effects of topical glycyl-L-histidyl-L-lysine tripeptide-copper complex (TCC; Iamin 2% Gel; Procyte Corporation, Redmond, WA) on healing in ischemic open wounds. Experimental study. Twenty-four adult male Sprague-Dawley rats. Rats were divided into 3 groups: topical TCC, topical TCC
Jeffrey D Pollard et al.
Archives of facial plastic surgery, 7(1), 27-31 (2005-01-19)
To evaluate the effects of copper tripeptide (GHK-Cu) on the growth and autocrine production of basic fibroblast growth factor, transforming growth factor beta1, and vascular endothelial growth factor by normal and irradiated fibroblasts in a serum-free in vitro environment. Primary
C Conato et al.
Biochimica et biophysica acta, 1526(2), 199-210 (2001-04-28)
Copper complex formation equilibria of glycyl-L-histidyl-L-lysine (Gly-His-Lys, GHK) and of two synthetic analogues, where the histidine residue was replaced with a synthetic amino acid (L-spinacine or L-1,2,3,4-tetrahydro-isoquinoline-3-carboxylic acid), have been carefully investigated using different experimental techniques: potentiometry, solution calorimetry, UV-VIS
Giangiacomo Beretta et al.
Chemical research in toxicology, 20(9), 1309-1314 (2007-08-04)
Histidine-containing oligopeptides are currently studied as detoxifying agents against cytotoxic alpha,beta-unsaturated aldehydes (prototype: 4-hydroxy-2-nonenal, HNE), electrophilic end products formed by decomposition of omega-6 polyunsaturated fatty acids, associated with severe pathologies such as diabetes, nephropathy, retinopathy, and neurodegenerative diseases. This study
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