SwePub
Sök i LIBRIS databas

  Utökad sökning

onr:"swepub:oai:lup.lub.lu.se:fbd6f55f-eaf7-4c3e-9036-c7a6eebd9b84"
 

Sökning: onr:"swepub:oai:lup.lub.lu.se:fbd6f55f-eaf7-4c3e-9036-c7a6eebd9b84" > Optimized Standard ...

  • Vanderstichele, Hugo Marcel JohanADx NeuroSciences (författare)

Optimized Standard Operating Procedures for the Analysis of Cerebrospinal Fluid Aβ42 and the Ratios of Aβ Isoforms Using Low Protein Binding Tubes

  • Artikel/kapitelEngelska2016

Förlag, utgivningsår, omfång ...

  • 2016
  • 12 s.

Nummerbeteckningar

  • LIBRIS-ID:oai:lup.lub.lu.se:fbd6f55f-eaf7-4c3e-9036-c7a6eebd9b84
  • https://lup.lub.lu.se/record/fbd6f55f-eaf7-4c3e-9036-c7a6eebd9b84URI
  • https://doi.org/10.3233/JAD-160286DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • Background: Reduced cerebrospinal fluid (CSF) concentration of amyloid-β1-42 (Aβ1-42) reflects the presence of amyloidopathy in brains of subjects with Alzheimer's disease (AD). Objective: To qualify the use of Aβ1-42/Aβ1-40 for improvement of standard operating procedures (SOP) for measurement of CSF Aβ with a focus on CSF collection, storage, and analysis. Methods: Euroimmun ELISAs for CSF Aβ isoforms were used to set up a SOP with respect to recipient properties (low binding, polypropylene), volume of tubes, freeze/thaw cycles, addition of detergents (Triton X-100, Tween-20) in collection or storage tubes or during CSF analysis. Data were analyzed with linear repeated measures and mixed effects models. Results: Optimization of CSF analysis included a pre-wash of recipients (e.g., tubes, 96-well plates) before sample analysis. Using the Aβ1-42/Aβ1-40 ratio, in contrast to Aβ1-42, eliminated effects of tube type, additional freeze/thaw cycles, or effect of CSF volumes for polypropylene storage tubes. 'Low binding' tubes reduced the loss of Aβ when aliquoting CSF or in function of additional freeze/thaw cycles. Addition of detergent in CSF collection tubes resulted in an almost complete absence of variation in function of collection procedures, but affected the concentration of Aβ isoforms in the immunoassay. Conclusion: The ratio of Aβ1-42/Aβ1-40 is a more robust biomarker than Aβ1-42 toward (pre-) analytical interfering factors. Further, 'low binding' recipients and addition of detergent in collection tubes are able to remove effects of SOP-related confounding factors. Integration of the Aβ1-42/Aβ1-40 ratio and 'low-binding tubes' into guidance criteria may speed up worldwide standardization of CSF biomarker analysis.

Ämnesord och genrebeteckningar

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

  • Janelidze, ShorenaLund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,Clinical Memory Research,Lund University Research Groups(Swepub:lu)nkir-sje (författare)
  • Demeyer, LeentjeADx NeuroSciences (författare)
  • Coart, ElsInternational Drug Development Institute (författare)
  • Stoops, ErikADx NeuroSciences (författare)
  • Herbst, VictorEuroimmun Medizinische Labordiagnostika AG (författare)
  • Mauroo, KimberleyADx NeuroSciences (författare)
  • Brix, Britta (författare)
  • Hansson, OskarLund University,Lunds universitet,Klinisk minnesforskning,Forskargrupper vid Lunds universitet,Clinical Memory Research,Lund University Research Groups,Skåne University Hospital(Swepub:lu)mphy-ohn (författare)
  • ADx NeuroSciencesKlinisk minnesforskning (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Journal of Alzheimer's Disease53:3, s. 1121-11321387-2877

Internetlänk

Hitta via bibliotek

Till lärosätets databas

Sök utanför SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy