Population Health Research Institute, the Canadian Institutes of Health Research, Heart and Stroke Foundation of Ontario, Canadian Institutes of Health Research Strategy for Patient Oriented Research through the Ontario SPOR Support Unit, the Ontario Ministry of Health and Long-Term Care, pharmaceutical companies (with major contributions from AstraZeneca [Canada], Sanofi Aventis [France and Canada], Boehringer Ingelheim [Germany amd Canada], Servier, and GlaxoSmithKline), Novartis and King Pharma, and national or local organisations in participating countries.
4Angiotensin-converting enzyme (ACE) inhibitors are first-line therapy for the treatment of hypertension, congestive heart failure, and diabetic nephropathy. ACE inhibitors are associated with adverse side effects such as persistent dry cough (ACE-cough) and, rarely, life-threatening angioedema (ACE-AE). The authors investigated the influence of ACE I/D polymorphism in combination with serum ACE activity, B 2 receptor À9/+9 polymorphism, and B 2 receptor C-58T single nucleotide polymorphism (SNP) on the development of ACE-AE and ACE-cough. The frequencies of ACE I/D as well as B 2 receptor +9/À9 and C-58T polymorphisms were compared in patients with ACE-AE, ACE-cough, and ACE inhibitor-exposed controls, and serum ACE activity was measured. There were 52 cases of ACE-AE, 36 cases of ACE-cough, and 77 controls. The genotyping revealed a significant association between the B 2 À9 allele and ACE inhibitor-induced AE (62% vs 38%, P=.008), and ACE inhibitor-induced cough (61% vs 38%, P=.02) when compared with controls. There was no significant association between ACE I/D polymorphism as well as the B 2 C-58T
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