Browsing by Author "Domingos, Ana"
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- A diálise peritoneal na actual crise pandémica: uma oportunidade de reflexãoPublication . Domingos, Ana; Guedes, A Malho; Neves, Pedro LeãoSão difíceis os tempos que se vivem, e tempos mais difíceis poderão estar por chegar. A actual pandemia do novo coronavírus obrigou a uma total reformulação da sociedade em geral e, em especial, dos cuidados que concernem à área da saúde.
- Etanercept in the treatment of ankylosing spondylitis and nephrotic syndrome in the context of AA amyloidosis: a 48-month follow-upPublication . Domingos, Ana; Vidinha, Joana; Osorio, Rui; Jerónimo, Teresa; Ribeiro, Célia; Mendonça, Catarina; Góis, Mário; Neves, Pedro LeãoDear Editor, Amyloidosis represents a family of diseases characterized by the deposition of proteinaceous material in the extracellular space that, by forming insoluble clusters on various tissues and organs, affects its function.
- Purification and characterization milk-clotting aspartic proteinases from Centaurea calcitrapa cell suspension culturesPublication . Raposo, Sara; Domingos, AnaPlant aspartic proteinases (APs) were isolated from several sources and studied for milk-clotting ability. Extraction of milk-clotting proteinases from intact plants is labor intensive and so, plant cell cultures is a viable alternative to obtain clotting enzymes. The aim of this work was to isolate APs from established suspension cell cultures of Centaurea calcitrapa and evaluate it's the potential interest for milk clotting. Plant cell extract was purified by ionic-exchange and hydrophobic-interaction chromatographies. Results suggest that the milk-clotting proteinases from cell cultures are synthesized as a 66-kDa proenzyme which originates a 50-kDa mature enzyme. The enzyme inhibition of 92% by pepstatin at 10 μM proved it to be an aspartate proteinase. The clotting time for purified APs suggests that these extracts may be used in the production of dairy products of weak paste or conjugated with other commercial rennets.