RT info:eu-repo/semantics/article T1 Circulating AQP4 levels in patients with cerebral amyloid angiopathy-associated intracerebral hemorrhage A1 Marazuela, Paula A1 Bonaterra Pastra, Anna A1 Faura, Júlia A1 Penalba, Anna A1 Pizarro, Jesús A1 Pancorbo, Olalla A1 Rodríguez Luna, David A1 Vert, Carla A1 Rovira, Alex A1 Pujadas, Francesc A1 Freijo Guerrero, María del Mar A1 Tur, Silvia A1 Martínez Zabaleta, Maite A1 Cardona Portela, Pere A1 Vera, Rocío A1 Lebrato Hernández, Lucía A1 Arenillas Lara, Juan Francisco A1 Pérez Sánchez, Soledad A1 Montaner, Joan A1 Delgado, Pilar A1 Hernández Guillamon, Mar K1 Brain - Hemorrhage K1 Neurology K1 Cerebrovascular diseases K1 Enfermedades cerebrovasculares K1 Magnetic resonance K1 Resonancia magnética K1 Angiopatia K1 Cerebro - Anomalias K1 Neurosurgery K1 Aquaporin 4 K1 Cerebral amyloid angiopathy K1 3205.07 Neurología K1 3207.11 Neuropatología K1 32 Ciencias Médicas AB Cerebral amyloid angiopathy (CAA) is a major cause of lobar intracerebral hemorrhage (ICH) in elderly patients. Growing evidence suggests a potential role of aquaporin 4 (AQP4) in amyloid-beta-associated diseases, including CAA pathology. Our aim was to investigate the circulating levels of AQP4 in a cohort of patients who had suffered a lobar ICH with a clinical diagnosis of CAA. AQP4 levels were analyzed in the serum of 60 CAA-related ICH patients and 19 non-stroke subjects by enzyme-linked immunosorbent assay (ELISA). The CAA–ICH cohort was divided according to the time point of the functional outcome evaluation: mid-term (12 ± 18.6 months) and long-term (38.5 ± 32.9 months) after the last ICH. Although no differences were found in AQP4 serum levels between cases and controls, lower levels were found in CAA patients presenting specific hemorrhagic features such as ≥2 lobar ICHs and ≥5 lobar microbleeds detected by magnetic resonance imaging (MRI). In addition, CAA-related ICH patients who presented a long-term good functional outcome had higher circulating AQP4 levels than subjects with a poor outcome or controls. Our data suggest that AQP4 could potentially predict a long-term functional outcome and may play a protective role after a lobar ICH. PB MDPI SN 2077-0383 YR 2021 FD 2021 LK https://uvadoc.uva.es/handle/10324/59965 UL https://uvadoc.uva.es/handle/10324/59965 LA eng NO Journal of Clinical Medicine, 2021, Vol. 10, Nº. 5, 989 NO Producción Científica DS UVaDOC RD 24-nov-2024