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Sökning: onr:"swepub:oai:DiVA.org:oru-76142" > Molecular epidemiol...

  • Månsson, Emeli,1978-Örebro universitet,Institutionen för medicinska vetenskaper (författare)

Molecular epidemiology of Staphylococcus epidermidis in prosthetic joint infections

  • BokEngelska2019

Förlag, utgivningsår, omfång ...

  • Örebro :Örebro University,2019
  • 137 s.
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:oru-76142
  • ISBN:9789175293097
  • https://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-76142URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:vet swepub-contenttype
  • Ämneskategori:dok swepub-publicationtype

Serie

  • Örebro Studies in Medicine,1652-4063 ;203

Anmärkningar

  • Staphylococcus epidermidis is ubiquitous in the human microbiota, but also an important pathogen in healthcare-associated infections, such as prosthetic joint infections (PJIs). In this thesis, aspects of the molecular epidemiology of S. epidermidis in PJIs were investigated with the aim of improving our understanding of the pre- and perioperative measures required to reduce the incidence of S. epidermidis PJIs.In Paper I, S. epidermidis retrieved from air sampling in the operating field during arthroplasty was characterized by multilocus sequence typing and antibiotic susceptibility testing. No isolates belonging to sequence types (STs) 2 and 215, previously associated with PJIs, were found in the air of the operating field. During air sampling, several Staphylococcus pettenkoferi isolates were identified, and as a spin-off of Paper I, the genomic relatedness of these isolates to S. pettenkoferi isolates from blood cultures was described in Paper II.In Paper III, genetic traits distinguishing S. epidermidis isolated from PJIs were determined using genome-wide association study accounting for population effects after whole-genome sequencing (WGS) of a population- based 10-year collection of S. epidermidis isolates from PJIs and of nasal isolates retrieved from patients scheduled for arthroplasty. Genes associated with antimicrobial agents used for prophylaxis in arthroplasty, i.e., beta-lactam antibiotics, aminoglycosides, and chlorhexidine, were associated with PJI origin. S. epidermidis from PJIs were dominated by the ST2a, ST2b, ST5, and ST215 lineages.In Paper IV, selective agar plates were used to investigate colonization with methicillin resistant S. epidermidis (MRSE) in patients scheduled for arthroplasty. MRSE were further characterized by WGS. A subset of patients was found to harbour PJI-associated S. epidermidis lineages in their microbiota before hospitalization, but no isolates belonging to the ST2a lineage nor any rifampicin-resistant isolates were retrieved.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Söderquist, Bo,professor,1955-Örebro universitet,Institutionen för medicinska vetenskaper(Swepub:oru)bost (preses)
  • Sundqvist, Martin,med. dr.1974-Örebro universitet,Institutionen för medicinska vetenskaper,Region Örebro län(Swepub:oru)mist (preses)
  • Nilsdotter-Augustinsson, Åsa,docentLinköping University, Norrköping, Sweden (preses)
  • Särndahl, Eva,professor,1963-Örebro universitet,Institutionen för medicinska vetenskaper(Swepub:oru)easl (preses)
  • Bergh, Kåre,professorDepartment of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway (opponent)
  • Örebro universitetInstitutionen för medicinska vetenskaper (creator_code:org_t)

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