Biomaterial Database

[Heterogeneity of binding proteins of proteoglycan aggregates from human hyaline cartilage under normal conditions and in systemic bone dysplasias]. 1985

S P Feshchenko, and K D Krasnopol'skaia, and S S Shishkin, and I R Erber

Using SDS electrophoresis and subsequent densitometry, the link proteins (LP) of proteoglycan aggregates of the knee joint hyaline cartilage, rib and/or the iliac crest cartilage were investigated. Both the control and experimental samples (n = 9 and n = 16, respectively) contained three LP with Mr 48.0 (LP-1), 44.0 (LP-2) and 41.5 KD (LP-3); however, their ratio varied within very broad limits. Low molecular weight forms of LP were also observed in the infundibulum-like deformation of the thorax. The considerable decrease of LP-3 and the elevated content of LP-2 were observed in lethal osteochondrodysplasias, which probably reflects the genetically determined disorder of limb morphogenesis, eventually resulting in the maintenance of embryonic ratio of LP. Almost all the preparations contained a protein with Mr 52 KD that was previously unknown for the LP system. The content of this protein was the highest in the exostose cartilage and in newborns. Possible mechanisms of LP heterogeneity and the significance of this parameter for the regulation of chondrogenesis and realization of certain physical properties of cartilages from different parts of the skeleton are discussed.

UI	MeSH Term	Description	Entries
D007231	Infant, Newborn	An infant during the first 28 days after birth.	Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008970	Molecular Weight	The sum of the weight of all the atoms in a molecule.	Molecular Weights,Weight, Molecular,Weights, Molecular
D011509	Proteoglycans	Glycoproteins which have a very high polysaccharide content.	Proteoglycan,Proteoglycan Type H
D001848	Bone Diseases, Developmental	Diseases resulting in abnormal GROWTH or abnormal MORPHOGENESIS of BONES.	Bone Dysplasias,Developmental Bone Disease,Bone Disease, Developmental,Bone Dysplasia,Developmental Bone Diseases,Dysplasia, Bone,Dysplasias, Bone
D002352	Carrier Proteins	Proteins that bind or transport specific substances in the blood, within the cell, or across cell membranes.	Binding Proteins,Carrier Protein,Transport Protein,Transport Proteins,Binding Protein,Protein, Carrier,Proteins, Carrier
D002356	Cartilage	A non-vascular form of connective tissue composed of CHONDROCYTES embedded in a matrix that includes CHONDROITIN SULFATE and various types of FIBRILLAR COLLAGEN. There are three major types: HYALINE CARTILAGE; FIBROCARTILAGE; and ELASTIC CARTILAGE.	Cartilages
D002358	Cartilage, Articular	A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact.	Articular Cartilage,Articular Cartilages,Cartilages, Articular
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D003720	Densitometry	The measurement of the density of a material by measuring the amount of light or radiation passing through (or absorbed by) the material.	Densitometries