نتایج جستجو برای: gags
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Complex polysaccharides, glycosaminoglycans (GAGs), are a class of ubiquitous macromolecules exhibiting a wide range of biological functions. They are widely distributed as sidechains of proteoglycans (PGs) in the extracellular matrix and at cellular level. The recent emergence of enhanced analytical tools for their study has triggered a virtual explosion in the field of glycomics. Analytical e...
BACKGROUND Many growth factors, such as bone morphogenetic protein (BMP)-2, have been shown to interact with polymers of sulfated disacharrides known as heparan sulfate (HS) glycosaminoglycans (GAGs), which are found on matrix and cell-surface proteoglycans throughout the body. HS GAGs, and some more highly sulfated forms of chondroitin sulfate (CS), regulate cell function by serving as co-fact...
Cytokinesis, the final step of cell division, involves the formation of membranous barriers that partition cytosol and organelles between the resultant daughter cells. Recent studies reveal a crucial role for the extracellular glycosaminoglycan chondroitin in the completion of the cleavage furrow in dividing Caenorhabditis elegans embryos.
Humor is a hallmark of human discourse. People use it to relieve stress and to facilitate social bonding, as well as for pure enjoyment in the absence of any apparent adaptive value. Although recent studies have revealed that humor acts as an intrinsic reward, which explains why people actively seek to experience and create humor, few have addressed the cognitive aspects of humor. We used event...
Glycosaminoglycans are polysaccharides that occur both at the cell surface and within extracellular matrices. Through their ability to bind to a large array of proteins, almost 500 of which have been identified to date, including most chemokines, these molecules regulate key biologic processes at the cell-tissue interface. To do so, glycosaminoglycans can provide scaffolds to ensure that protei...
Heparan sulfate proteoglycans (HSPGs) distribution in hair follicle (HF) is classically investigated by conventional histology, biochemical analysis, and immunohistochemistry. In this study, a novel approach proposed to assess histology HSPG changes the HF at different phases of growth cycle using infrared spectral imaging (IRSI). Particularly, we were interested expression glypican-1 compartme...
Acne vulgaris is a common skin disease and has complex pathogenesis. There no enough data related with oxidative stress in acne vulgaris. We purposed to assess total oxidant antioxidant status included 32 patients 35 healthy controls this study. Global Grading System (GAGS) scores were calculated. Serum (TOS) (TAS) levels evaluated index (OSI) was calculated by proportion of the TOS TAS. Mean G...
PURPOSE We studied the effect of polysaccharides on interactions between calcium oxalate monohydrate (COM) crystals and cultured renal cells. MATERIALS AND METHODS Monolayers of Madin-Darby canine kidney (MDCK) cells were incubated with radiolabeled crystals in the presence of various concentrations of natural glycosaminoglycans (GAGs) and semisynthetic polysaccharides (SSPs). RESULTS While...
Borrelia burgdorferi, the Lyme disease agent, binds glycosaminoglycans (GAGs) such as heparin, heparan sulfate, and dermatan sulfate. Heparin or heparan sulfate fractions separated by size or charge were tested for their ability to inhibit attachment of B. burgdorferi to Vero cells. GAG chains of increasing length and/or charge showed increasing inhibitory potency, and detectable heparin inhibi...
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