title: ACE variants and risk of intracerebral hemorrhage recurrence in amyloid angiopathy.
abstract: Cerebral amyloid angiopathy (CAA) is a well-established cause of lobar intracerebral hemorrhage (ICH). The aim of the authors was to investigate the influence of clinical characteristics and genetic variants in the ACE, LRP, MMP9, Tafi, VEGFA, CYP11B2, A2M and APOE on ICH recurrence in a cohort of CAA-related ICH patients. Sixty patients were enrolled and new symptomatic ICHs in the 36 mo following the index event were recorded. Leukoaraiosis degree, microbleeds count and variants in the APOE and ACE were associated with ICH recurrence. The rs4311 variant of the ACE was an independent risk factor (p = 0.001), resisting Bonferroni correction. Moreover, carriers of ε2 of the APOE and TT of the rs4311 of the ACE reached 100% recurrence before 18 mo (p < 0.001). Finally, ACE protein level was measured in serum of controls and depended on the rs4311 genotypes, TT carriers presenting higher level than CC carriers (p = 0.012). These results suggest that variants in the ACE are associated with CAA-related ICH recurrence, possibly by modulating ACE protein level.
authors.affiliation: Neurology Department, Universitat Autònoma de Barcelona, Institute of Research, Vall d'Hebron Hospital, Barcelona, Spain.
authors.forename: Sophie
authors.initials: S
authors.lastname: Domingues-Montanari
authors.forename: Mar
authors.initials: M
authors.lastname: Hernandez-Guillamon
authors.forename: Israel
authors.initials: I
authors.lastname: Fernandez-Cadenas
authors.forename: Maite
authors.initials: M
authors.lastname: Mendioroz
authors.forename: Mercè
authors.initials: M
authors.lastname: Boada
authors.forename: Josep
authors.initials: J
authors.lastname: Munuera
authors.forename: Alex
authors.initials: A
authors.lastname: Rovira
authors.forename: Olga
authors.initials: O
authors.lastname: Maisterra
authors.forename: Mireia
authors.initials: M
authors.lastname: Parés
authors.forename: Maria
authors.initials: M
authors.lastname: Gutierrez
authors.forename: José
authors.initials: J
authors.lastname: Alvarez-Sabin
authors.forename: Pilar
authors.initials: P
authors.lastname: Chacón
authors.forename: Pilar
authors.initials: P
authors.lastname: Delgado
authors.forename: Joan
authors.initials: J
authors.lastname: Montaner
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D001057:Apolipoproteins E / Q000235:genetics; D016657:Cerebral Amyloid Angiopathy / Q000150:complications* / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics*; D002543:Cerebral Hemorrhage / Q000201:enzymology / Q000453:epidemiology / Q000209:etiology* / Q000235:genetics*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D005260:Female; D055106:Genome-Wide Association Study / Q000379:methods; D006801:Humans; D053208:Kaplan-Meier Estimate; D008137:Longitudinal Studies; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D007703:Peptidyl-Dipeptidase A / Q000097:blood / Q000235:genetics*; D011110:Polymorphism, Genetic / Q000235:genetics*; D012008:Recurrence; D012307:Risk Factors
chemical_list: D001057:Apolipoproteins E; D007703:Peptidyl-Dipeptidase A