title: Effects of polymorphism of the beta(1) adrenoreceptor and CYP2D6 on the therapeutic effects of metoprolol.
abstract: Metoprolol is a lipophilic beta(1) selective adrenergic receptor antagonist used in antihypertensive therapy. It is metabolized by the protein product of the cytochrome P450 2D6 (CYP2D6) gene. Few studies have been performed on the association between the beta(1) adrenoreceptor, CYP2D6 polymorphism and blood pressure. The one reported here is a prospective, observational, clinical study in Chinese Han hypertensive patients on the combined influences of CYP2D6 and beta(1) adrenoreceptor polymorphisms on the therapeutic effects of metoprolol in 300 out-patients with essential hypertension. The same dose of metoprolol achieved different therapeutic effects in patients with different CYP2D6 and beta(1) adrenoreceptor polymorphisms. Additionally, different doses of metoprolol could achieve the same therapeutic effects in patients with different CYP2D6 and beta(1) adrenoreceptor polymorphisms. Knowledge of the combination of CYP2D6 and beta(1) adrenoreceptor polymorphisms may be used to guide antihypertensive therapy using beta(1) adrenoreceptor antagonists.
authors.affiliation: Centre of Clinical Pharmacology, The Third Xiangya Hospital, Central South University, Changsha, China.
authors.forename: H
authors.initials: H
authors.lastname: Yuan
authors.forename: Z
authors.initials: Z
authors.lastname: Huang
authors.forename: G
authors.initials: G
authors.lastname: Yang
authors.forename: H
authors.initials: H
authors.lastname: Lv
authors.forename: H
authors.initials: H
authors.lastname: Sang
authors.forename: Y
authors.initials: Y
authors.lastname: Yao
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000959:Antihypertensive Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D019389:Cytochrome P-450 CYP2D6 / Q000235:genetics*; D004305:Dose-Response Relationship, Drug; D020022:Genetic Predisposition to Disease; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy* / Q000503:physiopathology; D008790:Metoprolol / Q000008:administration & dosage / Q000627:therapeutic use*; D008875:Middle Aged; D012150:Polymorphism, Restriction Fragment Length / Q000235:genetics*; D011446:Prospective Studies; D018342:Receptors, Adrenergic, beta-1 / Q000235:genetics*; D055815:Young Adult
chemical_list: D000959:Antihypertensive Agents; D018342:Receptors, Adrenergic, beta-1; D019389:Cytochrome P-450 CYP2D6; D008790:Metoprolol