A
Anna Aspán
Researcher at National Veterinary Institute
Publications - 123
Citations - 4507
Anna Aspán is an academic researcher from National Veterinary Institute. The author has contributed to research in topics: Population & Anaplasma phagocytophilum. The author has an hindex of 37, co-authored 116 publications receiving 4094 citations. Previous affiliations of Anna Aspán include Uppsala University & Swedish University of Agricultural Sciences.
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cDNA cloning of prophenoloxidase from the freshwater crayfish Pacifastacus leniusculus and its activation.
TL;DR: In this article, an enzyme called Pro-Prophenoloxidase (proPO), an enzyme that is the terminal component of the so-called proPO activating system, a defense and recognition system in crustaceans and insects, has been purified and cloned from a crayfish blood cell cDNA library.
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High-throughput screening of tick-borne pathogens in Europe
Lorraine Michelet,Sabine Delannoy,Elodie Devillers,Gérald Umhang,Anna Aspán,Mikael Juremalm,Jan Chirico,Fimme J. van der Wal,Hein Sprong,Thomas P. Boye Pihl,Kirstine Klitgaard,Rene Bødker,Patrick Fach,Sara Moutailler +13 more
TL;DR: A large scale epidemiological study was conducted on 7050 Ixodes ricinus nymphs collected from France, Denmark, and the Netherlands using a powerful new high-throughput approach, able to facilitate comprehensive testing of TBPs and which can also be customized to monitor emerging diseases.
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Clostridium difficile: prevalence in horses and environment, and antimicrobial susceptibility.
TL;DR: C. difficile survived in nature and indoors for at least 4 years in inoculated equine faeces and was demonstrated that strains from the environment and healthy foals can serve as a potential reservoir of toxigenic C.difficile.
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Bacterial pathogen incidences in sludge from Swedish sewage treatment plants
TL;DR: This study surveyed the presence of bacterial pathogens in eight Swedish sewage treatment plants, with four different treatment methods, focusing on detection of zoonotic bacteria in raw and treated sludge, indicating that Salmonella persists in STPs and that there is a continuous supply of new strains.
Journal ArticleDOI
Purification of prophenoloxidase from crayfish blood cells, and its activation by an endogenous serine proteinase
Anna Aspán,Kenneth Söderhäll +1 more
TL;DR: Results show that crayfish prophenoloxidase, the terminal enzyme of the prophenoliaxidase activating cascade, a proposed defence pathway in arthropod blood, can be converted to active enzyme by an apparent proteolytic cleavage, not only by a commercial proteinase, but also by an endogenous serine type proteinase.