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Role of omega-6 fatty acid metabolism in cardiac surgery postoperative bleeding...
Velho, Tiago R.; Ferreira, Ricardo; Willmann, Katharina; Pedroso, Dora; Paixão, Tiago; Pereira, Rafael Maniés; Junqueira, Nádia; Carvalho Guerra, NunoCardiac surgery is frequently associated with significant postoperative bleeding. Platelet-dysfunction is the main cardiopulmonary bypass (CPB)-induced hemostatic defect. Not only the number of platelets decreases, but also the remaining are functionally impaired. Although lipid metabolism is crucial for platelet function, little is known regarding platelet metabolic changes associated with CPB-dysfunction. Our...
Changes in Expression of the CLOCK Gene in Obstructive Sleep Apnea Syndrome Pat...
Moreira, Susana; Rodrigues, Raquel; Barros, André B.; Pejanovic, Nadja; Neves-Costa, Ana; Pedroso, Dora; Pereira, Cláudia; Fernandes, DinaMetabolic syndrome and cardiovascular disease are strongly associated with obstructive sleep apnea syndrome (OSAS), which causes substantial changes to normal circadian physiological functions, including metabolic pathways. Because core clock genes are known to be modulated by sleep/vigilance cycles, we asked whether the expression level of mRNA coding for clock genes is altered in non-treated OSAS patients and...
Loss of WNK2 expression by promoter gene methylation occurs in adult gliomas an...
Moniz, Sónia; Martinho, Olga; Pinto, Filipe; Sousa, Bárbara; Loureiro, Cláudia; Oliveira, Maria José; Moita, Luís Ferreira; Honavar, MrinaliniThe gene encoding protein kinase WNK2 was recently identified to be silenced by promoter hypermethylation in gliomas and meningiomas, suggesting a tumour-suppressor role in these brain tumours. Following experimental depletion in cell lines, WNK2 was further found to control GTP-loading of Rac1, a signalling guanosine triphosphatase involved in cell migration and motility. Here we show that WNK2 promoter methyl...