Biomaterial Database

Binding of thioridazine and thioridazine metabolites to serum proteins. An in vitro study. 1982

G Nyberg, and E Mårtensson

The binding constants of the binding between thioridazine and its metabolites, side-chain sulfoxide, side-chain sulfone and ring sulfoxide, on the one hand, and the plasma proteins, alpha 1-acid glycoprotein, albumin and total serum proteins, on the other, were determined. The binding constants between the drug substances and alpha 1-acid glycoprotein were found to be about a thousand times higher than the binding constants between the drug substances and albumin. The binding constants of whole serum were close to those of alpha 1-acid glycoprotein. Analysis of the binding data indicated competition between thioridazine and its metabolites. A number of drug substances were screened for possible binding interaction with thioridazine and its metabolites. Tricyclic antidepressants and propranolol significantly increased the free concentration of thioridazine. Also salicyclic acid and the plasticizing agent, TBEP, had this effect.

UI	MeSH Term	Description	Entries
D009961	Orosomucoid		Acid Seromucoid,Seromucoid,Serum Sialomucin,alpha 1-Acid Glycoprotein,alpha 1-Acid Seromucoid,A(1)-Acid Seromucoid,Acid alpha 1-Glycoprotein,Alpha(1)-Acid Glycoprotein,alpha 1-Acid Glycoprotein (Acute Phase),alpha 1-Glycoprotein Acid,Acid alpha 1 Glycoprotein,Glycoprotein, alpha 1-Acid,Seromucoid, Acid,Seromucoid, alpha 1-Acid,Sialomucin, Serum,alpha 1 Acid Glycoprotein,alpha 1 Acid Seromucoid,alpha 1 Glycoprotein Acid
D011485	Protein Binding	The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments.	Plasma Protein Binding Capacity,Binding, Protein
D001798	Blood Proteins	Proteins that are present in blood serum, including SERUM ALBUMIN; BLOOD COAGULATION FACTORS; and many other types of proteins.	Blood Protein,Plasma Protein,Plasma Proteins,Serum Protein,Serum Proteins,Protein, Blood,Protein, Plasma,Protein, Serum,Proteins, Blood,Proteins, Plasma,Proteins, Serum
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
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
D001665	Binding Sites	The parts of a macromolecule that directly participate in its specific combination with another molecule.	Combining Site,Binding Site,Combining Sites,Site, Binding,Site, Combining,Sites, Binding,Sites, Combining
D012459	Salicylates	The salts or esters of salicylic acids, or salicylate esters of an organic acid. Some of these have analgesic, antipyretic, and anti-inflammatory activities by inhibiting prostaglandin synthesis.	Salicylate,Salicylic Acids,Acids, Salicylic
D013881	Thioridazine	A phenothiazine antipsychotic used in the management of PHYCOSES, including SCHIZOPHRENIA.	Aldazine,Apo-Thioridazine,Meleril,Mellaril,Melleretten,Melleril,Melleryl,Melzine,Rideril,Sonapax,Thioridazine HCL,Thioridazine Hydrochloride,Thioridazine-Neurazpharm,Thiozine,Apo Thioridazine,ApoThioridazine,Thioridazine Neurazpharm,ThioridazineNeurazpharm
D066298	In Vitro Techniques	Methods to study reactions or processes taking place in an artificial environment outside the living organism.	In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In