نتایج جستجو برای: chondroitin sulfate
تعداد نتایج: 59849 فیلتر نتایج به سال:
PURPOSE The extracellular matrix glycoprotein opticin is a small leucine-rich repeat proteoglycan/protein family member that was discovered associated with vitreous humor collagen fibrils. Opticin is present throughout the vitreous, but is particularly concentrated at the internal limiting lamina, where it colocalizes with type XVIII collagen. The present study investigated whether opticin inte...
Václavíková E., Kvasnička F. (2013): Isotachophoretic determination of glucosamine and chondroitin sulphate in dietary supplements. Czech J. Food Sci., 31: 55–65. Glucosamine and chondroitin sulfate, components of normal cartilage, are used as ingredients in dietary supplements intended to treat osteoarthritis and/or to support joint health. Of concern is the documented lack of quality in many ...
On the basis of an examination of autoradiograms of knee-joints fixed so as to remove chondroitin sulfate or inorganic sulfate, or to minimize the loss of both, it is suggested that the cartilage is permeable to inorganic sulfate in vivo and in vitro. In vivo and in vitro, almost as rapidly as it enters the cartilage, inorganic sulfate is utilized by the cells in the synthesis of chondroitin su...
glycosaminoglycan (gag) has a pivot role in renal function and homeostasis. analysis of gag amount generally serves to determine gag alteration due to diabetes mellitus. critical electrolyte concentration (cec) staining can be an efficacy method to study gag amount changes. based on an experimental study, 20 male rats were randomly divided equally into two experimental and control groups. diabe...
This paper deals with the possible relationship between a native, negatively charged polyelectrolyte, chondroitin sulfate, and sodium metabolism. The physical chemical property of decreased activity of the cations Na, K and Ca in chondroitin sulfate is described. The data of experiments indicating an alteration in the inueoprotein metabolism of the cartilage of the rabbit's ear in response to t...
This paper deals with the possible relationship between a native, negatively charged polyelectrolyte, chondroitin sulfate, and sodium metabolism. The physical chemical property of decreased activity of the cations Na, K and Ca in chondroitin sulfate is described. The data of experiments indicating an alteration in the inueoprotein metabolism of the cartilage of the rabbit's ear in response to t...
Biosynthesis of proteoglycans and glycosaminoglycans in the presence of p-nitrophenyl-xyloside was studied using a primary rat ovarian granulosa cell culture system. Addition of p-nitrophenyl-xyloside into cell culture medium caused about a 700% increase of [³⁵S]sulfate incorporation (ED50 at 0.03 mM) into macromolecules, which included free chondroitin sulfate chains initiated on xyloside and ...
An understanding of the interrelationships between cells and the intercellular substance of cartilages may help resolve the question of why some cartilages ossify and others do not. Thus far, in autoradiograms of growing bones, S%ulfate has been seen concentrated initially in chondrocytes (l-3), from which it is extruded into the matrix (1)) and thence, a portion of the label persists in the bo...
Recent results show that type IX collagen isolated from chicken cartilage is associated with one or perhaps two chondroitin sulfate chains. To locate the chondroitin sulfate chain(s) along the type IX collagen molecule, rotary shadowing was performed in the presence of monoclonal antibodies which recognize stubs of chondroitin sulfate generated after chondroitinase ABC digestion. Monoclonal ant...
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