Influence of the lung mechanical ventilation with injurious parameters on 7-ketocholesterol synthesis in Sus Scrofa.

Abstract:

:The aim of work was to investigate changes of 7-ketocholesterol synthesis in alveolar macrophages in the dynamic of lung mechanical ventilation with injurious parameters. The goal of in vitro part of work was to observe influence of 7-ketocholesterol on iNOS and MIP1 Beta production in bronchoalveolar lavage fluid (BALF) cells. We used 17 healthy domestic pigs randomly assigned into two treatment groups: group I with mechanical ventilation with physiological parameters; group || underwent injurious ventilation with high volume tidal (VT) and low positive end expiratory pressure (PEEP). ells were analyzed for CYP27A1 protein and gene expression levels, 7-ketocholesterol production. In alveolar macrophages of group ||, we obtained increase of production of CYP27A1 protein and 7-ketocholesterol, as well as the expression of the CYP27A1 gene at the 2nd hour of ventilation. In the in vitro experiments we show dose-dependent increase of MIP1 Beta and decrease of CYP27A1, iNOS protein production after 7-ketocholesterol treatment.

journal_name

BMB Rep

journal_title

BMB reports

authors

Klimenko OV,Vobruba V,Martasek P

doi

10.5483/bmbrep.2010.43.4.257

subject

Has Abstract

pub_date

2010-04-01 00:00:00

pages

257-62

issue

4

eissn

1976-6696

issn

1976-670X

journal_volume

43

pub_type

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