Metabolism of verapamil in a family pedigree with deficient N-oxidation of trimethylamine. 1991

R Ayesh, and H Kroemer, and M Eichelbaum, and R L Smith
Department of Pharmacology and Toxicology, St Mary's Hospital Medical School, London.

The oxidative N-dealkylation of verapamil has been studied in a family of five members with two propositi with an inherited deficiency of trimethylamine N-oxidation (fish-odour syndrome). The results were assessed for possible co-segregation of the trimethylamine N-oxidation phenotype and any observed deficiency in oxidative N-dealkylation. The general pattern of metabolism of verapamil in the five subjects studied was similar to that reported in earlier investigations. Moreover, there were no differences between the two affected subjects and other family members with respect to the metabolic pattern. It is concluded that there is no functional segregation with respect to the mechanisms controlling trimethylamine N-oxidation and verapamil N-dealkylation.

UI MeSH Term Description Entries
D008297 Male Males
D008661 Metabolism, Inborn Errors Errors in metabolic processes resulting from inborn genetic mutations that are inherited or acquired in utero. Inborn Errors of Metabolism,Metabolism Errors, Inborn,Error, Inborn Metabolism,Errors Metabolism, Inborn,Errors Metabolisms, Inborn,Errors, Inborn Metabolism,Inborn Errors Metabolism,Inborn Errors Metabolisms,Inborn Metabolism Error,Inborn Metabolism Errors,Metabolism Error, Inborn,Metabolism Inborn Error,Metabolism Inborn Errors,Metabolisms, Inborn Errors
D008744 Methylamines Derivatives of methylamine (the structural formula CH3NH2).
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009812 Odorants The volatile portions of chemical substances perceptible by the sense of smell. Odors,Aroma,Fragrance,Scents,Aromas,Fragrances,Odor,Odorant,Scent
D010084 Oxidation-Reduction A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). Redox,Oxidation Reduction
D010105 Oxygenases Oxidases that specifically introduce DIOXYGEN-derived oxygen atoms into a variety of organic molecules. Oxygenase
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D011110 Polymorphism, Genetic The regular and simultaneous occurrence in a single interbreeding population of two or more discontinuous genotypes. The concept includes differences in genotypes ranging in size from a single nucleotide site (POLYMORPHISM, SINGLE NUCLEOTIDE) to large nucleotide sequences visible at a chromosomal level. Gene Polymorphism,Genetic Polymorphism,Polymorphism (Genetics),Genetic Polymorphisms,Gene Polymorphisms,Polymorphism, Gene,Polymorphisms (Genetics),Polymorphisms, Gene,Polymorphisms, Genetic
D003640 Dealkylation The removing of alkyl groups from a compound. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed) Dealkylations

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