Biomaterial Database

The effect of certain chelating compounds on the urinary excretion of copper by the rat: observations on their clinical significance. 1977

K Gibbs, and J M Walshe

1. A screening procedure is described to assess rapidly the clinical potential of chelating agents for the treatment of Wilson's disease. 2. Rats were used as the test animal; they were kept in metabolic cages and the urine was collected in copper-free containers. The compounds investigated were given by mouth as a standard dose of 100 mg. Copper was determined by atomic absorption spectrophotometry. 3. Basal urine copper excretion was 65-1 +/- SE 2-93 nmol/24 h (4-1 microgram +/- 0-185). After penicillamine this rose to 367-1 nmol and after trien to 305-9 nmol. 4. Certain compounds caused a reduction in the amount of copper excreted in the urine, probably by forming insoluble chelates with the metal, hence rendering it unavailable for excretion at the glomerulus.

UI	MeSH Term	Description	Entries
D010396	Penicillamine	3-Mercapto-D-valine. The most characteristic degradation product of the penicillin antibiotics. It is used as an antirheumatic and as a chelating agent in Wilson's disease.	Dimethylcysteine,Mercaptovaline,beta,beta-Dimethylcysteine,Copper Penicillaminate,Cuprenil,Cuprimine,D-3-Mercaptovaline,D-Penicillamine,Metalcaptase,D 3 Mercaptovaline,D Penicillamine,Penicillaminate, Copper,beta,beta Dimethylcysteine
D002614	Chelating Agents	Chemicals that bind to and remove ions from solutions. Many chelating agents function through the formation of COORDINATION COMPLEXES with METALS.	Chelating Agent,Chelator,Complexons,Metal Antagonists,Chelators,Metal Chelating Agents,Agent, Chelating,Agents, Chelating,Agents, Metal Chelating,Antagonists, Metal,Chelating Agents, Metal
D003300	Copper	A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.	Copper-63,Copper 63
D004353	Drug Evaluation, Preclinical	Preclinical testing of drugs in experimental animals or in vitro for their biological and toxic effects and potential clinical applications.	Drug Screening,Evaluation Studies, Drug, Pre-Clinical,Drug Evaluation Studies, Preclinical,Drug Evaluations, Preclinical,Evaluation Studies, Drug, Preclinical,Evaluation, Preclinical Drug,Evaluations, Preclinical Drug,Medicinal Plants Testing, Preclinical,Preclinical Drug Evaluation,Preclinical Drug Evaluations,Drug Screenings,Screening, Drug,Screenings, Drug
D005029	Ethylenediamines	Derivatives of ethylenediamine (the structural formula NH2CH2CH2NH2).
D006527	Hepatolenticular Degeneration	A rare autosomal recessive disease characterized by the deposition of copper in the BRAIN; LIVER; CORNEA; and other organs. It is caused by defects in the ATP7B gene encoding copper-transporting ATPase 2 (EC 3.6.3.4), also known as the Wilson disease protein. The overload of copper inevitably leads to progressive liver and neurological dysfunction such as LIVER CIRRHOSIS; TREMOR; ATAXIA and intellectual deterioration. Hepatic dysfunction may precede neurologic dysfunction by several years.	Cerebral Pseudosclerosis,Neurohepatic Degeneration,Pseudosclerosis,Wilson Disease,Copper Storage Disease,Hepatic Form of Wilson Disease,Hepato-Neurologic Wilson Disease,Hepatocerebral Degeneration,Hepatolenticular Degeneration Syndrome,Kinnier-Wilson Disease,Progressive Lenticular Degeneration,Westphal-Strumpell Syndrome,Wilson Disease, Hepatic Form,Wilson's Disease,Cerebral Pseudoscleroses,Copper Storage Diseases,Degeneration Syndrome, Hepatolenticular,Degeneration Syndromes, Hepatolenticular,Degeneration, Hepatocerebral,Degeneration, Hepatolenticular,Degeneration, Neurohepatic,Degeneration, Progressive Lenticular,Degenerations, Hepatocerebral,Degenerations, Neurohepatic,Disease, Copper Storage,Diseases, Copper Storage,Diseases, Hepato-Neurologic Wilson,Diseases, Kinnier-Wilson,Hepato Neurologic Wilson Disease,Hepato-Neurologic Wilson Diseases,Hepatocerebral Degenerations,Hepatolenticular Degeneration Syndromes,Kinnier Wilson Disease,Kinnier-Wilson Diseases,Lenticular Degeneration, Progressive,Neurohepatic Degenerations,Pseudoscleroses, Cerebral,Pseudosclerosis, Cerebral,Storage Disease, Copper,Storage Diseases, Copper,Syndrome, Hepatolenticular Degeneration,Syndromes, Hepatolenticular Degeneration,Westphal Strumpell Syndrome,Westphal-Strumpell Syndromes,Wilson Disease, Hepato-Neurologic,Wilson Diseases, Hepato-Neurologic,Wilsons Disease
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D014266	Trientine	An ethylenediamine derivative used as stabilizer for EPOXY RESINS, as ampholyte for ISOELECTRIC FOCUSING and as chelating agent for copper in HEPATOLENTICULAR DEGENERATION.	Triethylenetetramine,Syprine,Trien,Trientine Dihydrochloride,Trientine Hydrochloride
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus