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- Guidelines for diagnosis and management of the cobalamin-related remethylation disorders cblC, cblD, cblE, cblF, cblG, cblJ and MTHFR deficiencyPublication . Huemer, Martina; Diodato, Daria; Schwahn, Bernd; Schiff, Manuel; Bandeira, Anabela; Benoist, Jean-Francois; Burlina, Alberto; Cerone, Roberto; Couce, Maria L.; Garcia-Cazorla, Angeles; la Marca, Giancarlo; Pasquini, Elisabetta; Vilarinho, Laura; Weisfeld-Adams, James D.; Kožich, Viktor; Blom, Henk; Baumgartner, Matthias R.; Dionisi-Vici, CarloBackground: Remethylation defects are rare inherited disorders in which impaired remethylation of homocysteine to methionine leads to accumulation of homocysteine and perturbation of numerous methylation reactions. Objective: To summarise clinical and biochemical characteristics of these severe disorders and to provide guidelines on diagnosis and management. Data sources: Review, evaluation and discussion of the medical literature (Medline, Cochrane databases) by a panel of experts on these rare diseases following the GRADE approach. Key recommendations: We strongly recommend measuring plasma total homocysteine in any patient presenting with the combination of neurological and/or visual and/or haematological symptoms, subacute spinal cord degeneration, atypical haemolytic uraemic syndrome or unexplained vascular thrombosis. We strongly recommend to initiate treatment with parenteral hydroxocobalamin without delay in any suspected remethylation disorder; it significantly improves survival and incidence of severe complications. We strongly recommend betaine treatment in individuals with MTHFR deficiency; it improves the outcome and prevents disease when given early.
- Resistência ao imipenemo em clone endémico de Clostridium difficile do ribotipo 017Publication . Isidro, Joana; Santos, Andrea; Nunes, Alexandra; Borges, Vítor; Silva, Catarina; Chaves, Catarina; Sancho, Luísa; Vieira, Luís; Gomes, João Paulo; Oleastro, MónicaObjetivos: Identificar estirpes clínicas resistentes aos carbapenemos; Caracterizar perfil de resistência; Identificar mecanismos de resistência; Avaliar a proximidade genética entre estirpes.