Biomaterial Database

Kinetic properties of osseous plate alkaline phosphatase from diabetic rats. 1993

A A Rezende, and S O Petenusci, and E C Urbinati, and F A Leone

Departamento de Química, F.F.C.L.R.P., Universidade de São Paulo, Ribeirão Preto, Brasil.

1. Increased levels of bone alkaline phosphatase activity were observed in diabetic rats. These animals exhibited impaired bone development without concomitant alterations of the sequence of cellular transformations. 2. Alkaline phosphatase activity was delayed in diabetic rats but the kinetic parameters for the hydrolysis of p-Nitrophenylphosphate (PNPP) were virtually the same observed for controls (N = 1.2 and K0.5 = 43 microM). 3. Alkaline phosphatase from diabetic rats had a better affinity (K0.5 = 38 microM) for magnesium ions than controls (K0.5 = 91 microM). 4. Zinc ions affected alkaline phosphatase activity from control and diabetic rats in the same way (K0.5 = 10 microM).

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D008274	Magnesium	A metallic element that has the atomic symbol Mg, atomic number 12, and atomic weight 24.31. It is important for the activity of many enzymes, especially those involved in OXIDATIVE PHOSPHORYLATION.
D008297	Male		Males
D009597	4-Nitrophenylphosphatase	An enzyme that catalyzes the hydrolysis of nitrophenyl phosphates to nitrophenols. At acid pH it is probably ACID PHOSPHATASE (EC 3.1.3.2); at alkaline pH it is probably ALKALINE PHOSPHATASE (EC 3.1.3.1). EC 3.1.3.41.	4-Nitrophenyl Phosphatase,K+-NPPase,K-Dependent p-Nitrophenylphosphatase,K-p NPPase,Nitrophenyl Phosphatase,p-NPPase,p-Nitrophenylphosphatase,para-Nitrophenyl Phosphatase,para-Nitrophenylphosphatase,4 Nitrophenyl Phosphatase,4 Nitrophenylphosphatase,K Dependent p Nitrophenylphosphatase,K p NPPase,K+ NPPase,p NPPase,p Nitrophenylphosphatase,p-Nitrophenylphosphatase, K-Dependent,para Nitrophenyl Phosphatase,para Nitrophenylphosphatase
D011506	Proteins	Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.	Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D001786	Blood Glucose	Glucose in blood.	Blood Sugar,Glucose, Blood,Sugar, Blood
D001842	Bone and Bones	A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principal cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX.	Bone Tissue,Bone and Bone,Bone,Bones,Bones and Bone,Bones and Bone Tissue,Bony Apophyses,Bony Apophysis,Condyle,Apophyses, Bony,Apophysis, Bony,Bone Tissues,Condyles,Tissue, Bone,Tissues, Bone
D001857	Bone Matrix	Extracellular substance of bone tissue consisting of COLLAGEN fibers, ground substance, and inorganic crystalline minerals and salts.	Bone Matrices,Matrices, Bone,Matrix, Bone
D003921	Diabetes Mellitus, Experimental	Diabetes mellitus induced experimentally by administration of various diabetogenic agents or by PANCREATECTOMY.	Alloxan Diabetes,Streptozocin Diabetes,Streptozotocin Diabetes,Experimental Diabetes Mellitus,Diabete, Streptozocin,Diabetes, Alloxan,Diabetes, Streptozocin,Diabetes, Streptozotocin,Streptozocin Diabete
D006863	Hydrogen-Ion Concentration	The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH	pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations