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Use of the virtual slide and the dynamic real-time telepathology systems for a consultation and the frozen section intra-operative diagnosis in thoracic/pulmonary pathology

100%

Slodkowska J., Pankowski J., Siemiatkowska K., Chyczewski L.

Folia Histochemica et Cytobiologica

2009

tom 47

nr 4

Deficiency of cyclooxygenases transcripts in cultured primary bronchial epithelial cells of aspirin-sensitive asthmatics

100%

Pierzchalska M., Soja J., Wos M., Szabo Z., Nizankowska-Mogilnicka E., Sanak M., Szczeklik A.

Journal of Physiology and Pharmacology

2007

tom 58

nr 2

Background Airway function is actively regulated by epithelium through generating PGE2, the production of which depends on cyclooxygeneses (COX-1 and COX-2). Analysis of bronchial biopsies and bronchial epithelial cells in culture conducted so far gave conflicting results of expression pattern of these enzymes in healthy subjects and asthmatics patients, with and without aspirin hypersensitivity. Objective Our aim was to investigate the expression of COX-1 and COX-2 mRNA in primary human bronchial epithelial cells (HBEC) isolated from asthmatics and non-asthmatics. Methods We isolated HBEC from bronchial brushing preparations taken during bronchoscopy of 10 non-asthmatics (NA), 8 aspirin-tolerant asthmatics (ATA) and 9 aspirin-intolerant asthmatics (AIA). HBEC were cultured in serum free medium until 80% confluent. Total cellular RNA was isolated and reversed transcribed using oligo(dT)15 primers. Real time PCR was performed with primers to COX-1, COX-2, GAPDH and ß-actin in the presence of SYBR green dye. The cycle threshold (CT) for COX-1 or COX-2 was normalized using ß-actin and GAPDH as the internal standards. Results Not only COX-1 but also COX-2 mRNA were expressed by HBEC without any proinflammatory stimulation. We detected the smallest amount of COX-1 mRNA in the AIA group. The same trend was observed for COX-2 mRNA, though it didn’t reach the statistical significance. We also analysed the relationship between CTCOX-1 to CTCOX-2 by calculating the difference DCTCOX-1-COX-2. This analysis revealed that AIA group can be characterized by relatively smallest COX-1 mRNA expression in comparison to COX-2. There is a strong positive correlation between CTCOX1 and CTCOX2 in NA group (r=0.85; p< 0.001). In both groups of asthmatics this correlation is absent (ATA – r=0.5, p>0.1; AIA – r=0.43, p>0.1). Conclusions Cyclooxygeneases transcripts expression is altered in HBEC derived from the asthmatic patients, and this phenomenon is pronounced in case of aspirin hypersensitivity.

Relationship between airway wall thickness assessed by high-resolution computed tomography and lung function in patients with asthma and chronic obstructive pulmonary disease

80%

Kosciuch J., Krenke R., Gorska K., Zukowska M., Maskey-Warzechowska M., Chazan R.

Journal of Physiology and Pharmacology. Supplement

2009

tom 60

nr 5

Ograniczanie wyników

1 Folia Histochemica et Cytobiologica

1 Journal of Physiology and Pharmacology

1 Journal of Physiology and Pharmacology. Supplement

1 Chazan R.

1 Chyczewski L.

1 Gorska K.

1 Kosciuch J.

1 Krenke R.

1 Maskey-Warzechowska M.

1 Nizankowska-Mogilnicka E.

1 Pankowski J.

1 Pierzchalska M.

1 Sanak M.

1 Siemiatkowska K.

1 Slodkowska J.

1 Soja J.

1 Szabo Z.

1 Szczeklik A.

1 Wos M.

1 Zukowska M.

2 2009

1 2007

Wyniki wyszukiwania

Use of the virtual slide and the dynamic real-time telepathology systems for a consultation and the frozen section intra-operative diagnosis in thoracic/pulmonary pathology

Deficiency of cyclooxygenases transcripts in cultured primary bronchial epithelial cells of aspirin-sensitive asthmatics

Relationship between airway wall thickness assessed by high-resolution computed tomography and lung function in patients with asthma and chronic obstructive pulmonary disease