14102 studies
PURPOSE: Gastric pentadecapeptide BPC 157 (BPC 157), which has been shown to be safe in clinical trials for inflammatory bowel disease (PL-10, PLD-116, PL14736, Pliva, Croatia), may be able to cure intestinal anastomosis dehiscence. This antiulcer pe…
Seven or fourteen days or twelve months after suturing one tube into the pyloric sphincter (removed by peristalsis by the seventh day), rats exhibit prolonged esophagitis with a constantly lowered pressure not only in the pyloric, but also in the low…
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 fat…
OBJECTIVE: The purpose of this study was to evaluate the influence of Cu-GHK aids for the LED-PI on fibroblast proliferation and collagen production in vitro. BACKGROUND DATA: Light-emitting diode photoirradiation (LED-PI) and copper-glycyl-L-histidy…
In mammalian organisms copper can be found mainly in the form of complex with specific tripeptide, GHK-Cu (glycyl-l-histidyl-l-lysine-Cu(II)). GHK-Cu is the basic form in which copper is transported in tissues and permeates through cell membranes. Th…
BACKGROUND: Epithelial cells can be called the first line of a defense barrier to microorganisms by the innate immune system. The antimicrobial peptides are the major participants of this system. Cathelicidins are a family of peptides thought to prov…
New peptides for lipopolysaccharide (LPS) and lipoteichoic acid (LTA) neutralization in upper respiratory tract infections were developed and evaluated in terms of efficacy and safety for application in humans. Based on the sequence of the human anti…
Binding of lipopolysaccharide (LPS) to macrophages results in proinflammatory cytokine secretion. In extreme cases it leads to endotoxic shock. A few innate immunity antimicrobial peptides (AMPs) neutralize LPS activity. However, the underlying mecha…
Interaction of the human antimicrobial peptide LL-37 with lipid monolayers has been investigated by a range of complementary techniques including pressure-area isotherms, insertion assay, epifluorescence microscopy, and synchrotron x-ray scattering,…
Antimicrobial peptide LL-37 plays an important role in human body's first line of defense against infection. To better understand the mechanism of action, it is critical to elucidate the three-dimensional structure of LL-37 in complex with bacterial…
Cathelicidins comprise a family of antimicrobial peptides sharing a highly conserved cathelin domain. Here we report that the entire chicken genome encodes three cathelicidins, namely fowlicidin-1 to -3, which are densely clustered within a 7.5-kb di…
Accurate definition of respiratory health in pigs is an important problem for swine producers and veterinarians. In an approach to identify potential biomarkers, two-dimensional gel electrophoresis and mass spectrometry on bronchoalveolar lavage flui…
LL-37 is a human cationic host defense peptide that is present in the specific granules of neutrophils, produced by epithelial cells from a variety of tissues, and is upregulated during inflammation, infection, and injury. It has been proposed to hav…
The protein pattern of healthy human eccrine sweat was investigated and 10 major proteins were detected from which apolipoprotein D, lipophilin B, and cathepsin D (CatD) were identified for the first time in human eccrine sweat. We focused our studie…
Antimicrobial peptides (AMPs) are effector molecules of innate immunity. Dermcidin (DCD), a recently discovered AMP with broad-spectrum activity, is produced constitutively by the eccrine sweat glands and secreted into sweat. In this study, we invest…
Further to the previous finding of the rainbow trout rtCATH_1 gene, this paper describes three more cathelicidin genes found in salmonids: two in Atlantic salmon, named asCATH_1 and asCATH_2, and one in rainbow trout, named rtCATH_2. All the three ne…
OBJECTIVES: The antibacterial activity of antimicrobial peptides is influenced by various factors such as salt content, pH and the presence of proteins. In this study, we explored the antibacterial action of the human cathelicidin LL-37 in physiologi…
Antimicrobial peptides (AMPs) have been shown in animal and human systems to be effective natural antibiotics. However, it is unclear how they convey protection; they often appear inactive when assayed under culture conditions applied to synthetic an…
The antimicrobial protein cathelicidin is considered to play an important role in the defense mechanisms against bacterial infection. Recent studies show that sodium butyrate induces cathelicidin gene expression in human colonic, gastric and hepatic…
The sole human cathelicidin peptide, LL-37, has been demonstrated to protect animals against endotoxemia/sepsis. Low, physiological concentrations of LL-37 (< or =1 microg/ml) were able to modulate inflammatory responses by inhibiting the release of…