Object

This publication is protected and available only for logged users.
This publication is protected and available only for logged users.

Title: Usefulness of eicosanoids in exhaled breath condensate (EBC) analysis in children with asthma

Abstract:

Exhaled breath condensate (EBC) analysis is a relatively new method of diagnosing pediatric asthma. The aim of study was to ascertain eicosanoids content in EBC and to evaluate its diagnostic value in children. EBC was collected in 35 atopic asthmatics (12.4 yrs ± 3.1) and in 25 healthy controls (age 11.8 yrs ± 3.2). Validated HPLC-MS2 method was used to measure: PGE2, tetranor-PGEM (PGEM), PGD2, 6ketoPGF1α, 11dehydro-TXB2, LTB4, LTC4, trans-LTC4, LTD4, LTE4, 5HETE, 12HETE, 15HETE, LXA4, EXC4, EXD4, EXE4 in EBC. Levels of 9α,11β-PGF2α, PGF2α and 8iso-PGF2α were determined by GC-NICI-MS. Exhaled nitric oxide levels (FeNO) were measured and bronchial hyperresponsiveness (BHR) was assessed by exercise challenge test in each subject. An analytical approach with the Akaike information criterion was used for multivariate regression modeling of the disease status using the most relevant variables. The following eicosanoids: PGEM (p=0.001), PGD2 (p<0.001), PGF2α (p=0,001), 6keto-PGF1α (p=0.03), LTC4 (p<0.001), trans-LTC4 (p=0.04), 5HETE (p=0.02) and 9α,11βPGF2α (p=0.001) were significantly higher, the level of 11dehydro-TXB2 (p=0.02) was significantly lower in asthmatics compared to controls. The Eicosanoids Asthma Classification Ratio (EACR) was computed as the logistic regression function using four variables: PGEM, PGD2, LTC4 and 5HETE. It was superior to FeNO or BHR as a tool for asthma prediction in children and didn’t depend on the current medication. Conclusion: The computed EACR, which takes into account levels of PGEM, PGD2, LTC4, 5HETE in EBC, allowed highly accurate discrimination of studied asthmatic and control group subjects.

Place of publishing:

Kraków

Level of degree:

2 - studia doktoranckie

Degree discipline:

pulmonologia ; pediatria

Degree grantor:

Uniwersytet Jagielloński. Collegium Medicum. Wydział Lekarski.

Promoter:

Grzegorz Lis

Date issued:

2012

Format:

application/pdf

Identifier:

oai:dl.cm-uj.krakow.pl:3507

Call number:

ZB-118167

ControlNumberVIRTUA:

click here to follow the link

Language:

pol

Access rights:

tylko w bibliotece

Location of original object:

Biblioteka Medyczna Uniwersytetu Jagiellońskiego- Collegium Medicum

Object collections:

Last modified:

Oct 29, 2019

In our library since:

May 8, 2013

Number of object content hits:

3

Number of object content views in PDF format

3

All available object's versions:

http://dl.cm-uj.krakow.pl:8080/publication/3507

Show description in RDF format:

RDF

Show description in OAI-PMH format:

OAI-PMH

Edition name Date
ZB-118167 Oct 29, 2019
×

Citation

Citation style:

This page uses 'cookies'. More information