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Vila Nova de Gaia, Portugal

Gunther G.,German Center for Infection Research Tuberculosis Unit | Gunther G.,University of Namibia | Van Leth F.,University of Amsterdam | Altet N.,Hospital Universitari Vall dHebron | And 13 more authors.
International Journal of Tuberculosis and Lung Disease | Year: 2015

The emergence of drug-resistant tuberculosis (TB) is a challenge to TB control in Europe.We evaluated secondline drug susceptibility testing in Mycobacterium tuberculosis isolates from patients with multidrugresistant, pre-extensively drug-resistant (pre-XDR-TB) and XDR-TB at 23 TBNET sites in 16 European countries. Over 30% of bacilli from patients with pre-XDR-TB showed resistance to any fluoroquinolone and almost 70% to any second-line injectable drug. Respectively >90% and >80% of the XDR-TB strains tested showed phenotypic resistance to pyrazinamide and ethambutol. Resistance to prothionamide/ethionamide was high in bacilli from pre-XDR-TB patients (43%) and XDR-TB patients (49%). © 2015 The Union. Source


O'Reilly N.,National University of Ireland, Maynooth | Menezes N.,Centro Hospitalar Of Vila Nova Gaia Espinho | Kavanagh K.,National University of Ireland, Maynooth
British Journal of Dermatology | Year: 2012

Background Rosacea is a chronic inflammatory condition that affects the skin of the face and the eyes. Erythematotelangiectatic rosacea is characterized by flushing, oedema and telangiectasia. Patients with rosacea demonstrate elevated densities of Demodex mites in their skin compared with controls. A bacterium (Bacillus oleronius) isolated from Demodex mites from a patient with papulopustular rosacea has been demonstrated to produce antigenic proteins that may play a role in papulopustular and ocular rosacea. Objectives To establish whether there was a correlation between the reactivity of sera from patients with erythematotelangiectatic rosacea to Bacillus antigens, and to characterize the proteins to which these patients showed reactivity. Methods Serum samples from patients with erythematotelangiectatic rosacea and controls were examined for reactivity to Bacillus proteins by Western blot analysis. Proteins to which the sera reacted were excised from gels, trypsin digested, and putative identities were assigned following liquid chromatography-mass spectrometry (LC-MS) analysis. Results Eighty per cent (21/26) of patients with erythematotelangiectatic rosacea showed serum reactivity to the 62- and 83-kDa proteins of B. oleronius, compared with 40% (9/22) of controls (P = 0·004). The 62-kDa protein was characterized by LC-MS and showed homology to groEL chaperonin, which provokes a strong immune response in mammals. The 83-kDa protein showed homology to aconitate hydratase, of which expression is increased in bacteria under oxidative stress, and which is highly immunogenic. Conclusions The majority of patients with erythematotelangiectatic rosacea show serum reactivity to two proteins from B. oleronius, suggesting that this bacterium may play a role in the induction of this condition. The two proteins to which patient sera reacted were found to be similar to a heat shock protein and an enzyme involved in regulating the stress response of the bacterium. © 2012 The Authors. BJD © 2012 British Association of Dermatologists. Source


Ponte M.,Centro Hospitalar Of Vila Nova Gaia Espinho | Dias Ferreira N.,Centro Hospitalar Of Vila Nova Gaia Espinho | Bettencourt N.,Centro Hospitalar Of Vila Nova Gaia Espinho | Caeiro D.,Centro Hospitalar Of Vila Nova Gaia Espinho | And 4 more authors.
Revista Portuguesa de Cardiologia | Year: 2014

Aortic intramural hematoma (IMH) is an acute aortic syndrome characterized by bleeding into the media of the aortic wall without intimal disruption or the classic flap formation. Its natural history is variable and still poorly understood, so strategies for therapeutic management are not fully established. In some cases there is partial or complete regression of the hematoma under medical treatment, but most progress to dissection, aneurysmal dilatation or aortic rupture. The authors present the case of a 44-year-old hypertensive male patient admitted with a diagnosis of IMH of the descending aorta. Despite initial symptom resolution and optimal medical therapy, the IMH evolved to a pseudoaneurysm, which was successfully treated by an endovascular approach. © 2014 Sociedade Portuguesa de Cardiologia. Published by Elsevier España, S.L.U. All rightsreserved. Source

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