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Sökning: onr:"swepub:oai:DiVA.org:liu-84614" > Inflammatory mediat...

  • Mai, XiaomeiLinköpings universitet,Pediatrik,Hälsouniversitetet (författare)

Inflammatory mediators monitored in urine in asthmatic children with hypertonic saline-induced bronchoconstriction and in healthy controls

  • BokEngelska

Förlag, utgivningsår, omfång ...

  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-84614
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-84614URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

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

Anmärkningar

  • Hypertonic saline provocation tests have been validated to be useful in the International Study of Asthma and Allergies in Childhood, but the inflammatory mechanisms of hypertonic saline-induced bronchial hyperresponsiveness (BHR) have not been well understood in asthmatic children. Of the 127 children who participated in hypertonic saline provocation tests, all asthmatics with (n = 13) and without BHR (n = 7) as well as all healthy controls without BHR (n = 37) were evaluated with urine samples collected before and one hour after the provocation test. Paired samples were analyzed in 11 asthmatics with and 6 asthmatics without BHR and 18 healthy controls. Urinary histamine, 11ß-PGF2α and LTE4 were analyzed by EIA and urinary EPX by RIA. The levels of LTE4 increased after the challenge tests, both in the asthmatics (median value: 354.2 pg/mg pre-challenge vs. 628.3 pg/mg post-challenge, p = 0.05) and in the healthy controls (median value: 294.4 pg/mg pre-challenge vs. 460.0 pg/mg post-challenge, p = 0.008). The levels of histamine also increased in the latter (median value: 299.3 µmol/rug pro-challenge vs. 568.8 µmol/mg post-challenge, p = 0.03). However, the levels of 11ß-PGF2α and EPX were similar before and after the challenge tests both in the asthmatics and in the healthy controls. The inhalation of hypertonic saline induced the secretion of LTE4 and histamine even in healthy children, but the bronchoconstriction did not seem to be induced by the analyzed inflammatory mediators, such as LTE4, 11ß-PGF2α, histamine and EPX.

Ämnesord och genrebeteckningar

  • MEDICINE
  • MEDICIN

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

  • Fagerås Böttcher, MalinLinköpings universitet,Pediatrik,Hälsouniversitetet (författare)
  • Holmberg, MikaelaLinköpings universitet,Allergicentrum,Hälsouniversitetet (författare)
  • Nilsson, LennartLinköpings universitet,Pediatrik,Hälsouniversitetet(Swepub:liu)lenni67 (författare)
  • Zetterström, OlleLinköpings universitet,Allergicentrum,Hälsouniversitetet(Swepub:liu)ollze50 (författare)
  • Linköpings universitetPediatrik (creator_code:org_t)

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