Dingchang Wu1, Ganyang Li2, Maoqing Deng3, Wei Song2, Xiaohua Huang3, Xiaoru Guo3, Zhengzheng Wu4, Shiyang Wu4, Jiasen Xu4. 1. Department of Laboratory Medicine, First Affiliated Hospital of Fujian Medical University, Longyan, China 2658720712@qq.com. 2. Department of Cardiovascular Medicine, First Affiliated Hospital of Fujian Medical University, Longyan, China. 3. Department of Laboratory Medicine, First Affiliated Hospital of Fujian Medical University, Longyan, China. 4. SurExam Bio-Tech Co. Ltd, Guangzhou Technology Innovation Base, Guangzhou, China.
Abstract
OBJECTIVE: To investigate the associations between β1-adrenergic receptor (ADRB1) and cytochrome P450 2D6 (CYP2D6) gene polymorphisms and β-blocker treatment outcomes in patients with hypertension. METHODS: Chinese patients with essential hypertension were treated with the β-blocker metoprolol and followed up for 12 weeks. xTAG® liquid-chip technology was used for CYP2D6 100 C > T and ADRB1 1165G > C genotyping. Associations between gene polymorphisms and antihypertensive therapy outcomes were assessed by generalized linear model fitting. A decrease of ≥ 10 mmHg in systolic blood pressure indicated an effective treatment outcome. RESULTS: A total of 93 patients were included in the study. Mutant allele frequencies of 61.29% and 58.60% were obtained for ADRB1 and CYP2D6, respectively. There was no significant interaction between the effects of ADRB1 and CYP2D6 gene polymorphisms on treatment outcome. Patients homozygous for the mutant ADRB1 genotype (CC) had better treatment outcomes than those heterozygous for the mutation (GC). Interestingly, β-blocker treatment duration was an independent factor associated with treatment outcome. CONCLUSIONS: The ADRB1 1165G > C gene polymorphism and β-blocker treatment duration are independent factors associated with β-blocker treatment outcome. These findings suggest that the selection of antihypertensive therapy should take into consideration the patient's genotype.
OBJECTIVE: To investigate the associations between β1-adrenergic receptor (ADRB1) and cytochrome P450 2D6 (CYP2D6) gene polymorphisms and β-blocker treatment outcomes in patients with hypertension. METHODS: Chinese patients with essential hypertension were treated with the β-blocker metoprolol and followed up for 12 weeks. xTAG® liquid-chip technology was used for CYP2D6 100 C > T and ADRB1 1165G > C genotyping. Associations between gene polymorphisms and antihypertensive therapy outcomes were assessed by generalized linear model fitting. A decrease of ≥ 10 mmHg in systolic blood pressure indicated an effective treatment outcome. RESULTS: A total of 93 patients were included in the study. Mutant allele frequencies of 61.29% and 58.60% were obtained for ADRB1 and CYP2D6, respectively. There was no significant interaction between the effects of ADRB1 and CYP2D6 gene polymorphisms on treatment outcome. Patients homozygous for the mutant ADRB1 genotype (CC) had better treatment outcomes than those heterozygous for the mutation (GC). Interestingly, β-blocker treatment duration was an independent factor associated with treatment outcome. CONCLUSIONS: The ADRB1 1165G > C gene polymorphism and β-blocker treatment duration are independent factors associated with β-blocker treatment outcome. These findings suggest that the selection of antihypertensive therapy should take into consideration the patient's genotype.
Authors: Jasmine A Luzum; Kevin M Sweet; Philip F Binkley; Tara J Schmidlen; Joseph P Jarvis; Michael F Christman; Wolfgang Sadee; Joseph P Kitzmiller Journal: Pharm Res Date: 2017-02-08 Impact factor: 4.200
Authors: Anne Kristine Anstensrud; Espen Molden; Hans Jørgen Haug; Rehman Qazi; Hysen Muriq; Linn E Fosshaug; Olav Spigset; Erik Øie Journal: Eur J Clin Pharmacol Date: 2020-01-15 Impact factor: 2.953