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Open AccessResearch article

PSMB2 and RPL32 are suitable denominators to normalize gene expression profiles in bronchoalveolar cells

Eva Kriegova1 email, Arsen Arakelyan1 email, Regina Fillerova1 email, Jaromir Zatloukal2 email, Frantisek Mrazek1 email, Zdenka Navratilova1 email, Vitezslav Kolek2 email, Roland M du Bois3 email and Martin Petrek1 email

Department of Immunology, Palacky University, The Czech Republic

Department of Respiratory Medicine, Palacky University & Faculty Hospital, Olomouc, The Czech Republic

Interstitial Lung Disease Unit, Royal Brompton Hospital, London, UK

author email corresponding author email

BMC Molecular Biology 2008, 9:69doi:10.1186/1471-2199-9-69

Published: 31 July 2008

Additional files

Additional file 1:

Description of used statistical approaches.

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Additional file 2:

Table E1. Clinical and laboratory characteristics of investigated subjects.

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Additional file 3:

Definition of terms.

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Additional file 4:

Figure E1. RNA quality assessment (a representative example) by 2100 Bioanalyzer (Agilent Technologies, Palo Alto, USA). This figure shows typical chromatogram of microcapillary electrophoresis of total RNA preparation of good quality extracted from bronchoalveolar lavage cells. Electropherogram shows 18S and 28S rRNA peaks. FU – Fluorescence units.

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Additional file 5:

Figure E2. Expression levels of ten housekeeping genes in bronchoalveolar cells from sarcoidosis patients and normal subjects from the 2nd cohort. Expression levels of ten housekeeping genes in CTt values in bronchoalveolar cells from sarcoidosis patients (n = 63) a normal subjects (n = 17). The data are presented as means (columns) ± SD (errorbars). White columns represent the control group, dark columns sarcoidosis patients.

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