title: Assessment of expressions of Bcl-XL, b-FGF, Bmp-2, Caspase-3, PDGFR-α, Smad1 and TGF-β1 genes in a rat model of lung ischemia/reperfusion.
abstract: OBJECTIVE
  Ischemia is described as organs and tissues are destitute of oxygen due to decreased arterial or venous blood flow. Many mechanisms play role in cell death happened as a consequence of a new blood flow is needed for both cell regeneration and to clean toxic metabolites during ischemia and later. Lung damage induced by ischemia/reperfusion (I/R) is a frequent problem in lung transplantation. Apoptosis (programmed cell death) is known as cell suicide, and plays a key role in embryonic developmental and in maintain adult tissue's life.
  
  
  METHODS
  It is investigated expressions of Smad1, Bmp-2, Bcl-XL, b-FGF, Caspase-3, TGF-β1, PDGFR-α genes for molecular changes in lung tissues, after I/R is formed, in this study. For this, we included 40 Wistar albino rats to this study and divided 4 groups (n=10). The Groups were determined as Control (C), Group 1= 1 hr ischemia (I), Group 2= 1 hr ischemia+2 hr reperfusion (I+2R), Group 3= 1 hr ischemia+4 hr reperfusion (I+4R). Besides, molecular analysis and histopathologic examinations of tissues were performed, and the results were evaluated by normalization and statistics analysis.
  
  
  RESULTS
  We have found a significant increase in expression of Bcl-XL (P=0.046) and Caspase-3 (P=0.026) genes of group 1, and it was not monitored any significant difference in Group 2 and Group 3. In all groups, the changes in b-FGF (P=0.087), Bmp-2 (P=0.457), TGF-β1 (P=0.201) and PDGFR-α (P=0.116) were not significant compared to control group. We did not see any mRNA expression of Smad1 gene in all groups include control.
  
  
  CONCLUSIONS
  These findings suggest that I/R injury may trigger apoptotic mechanism in lung.
authors.affiliation: Dumlupınar University, Department of Physiology, Faculty of Medicine, Kütahya, Turkey.
authors.forename: Hasan
authors.initials: H
authors.lastname: Şimşek
authors.affiliation: Gaziantep University, Department of Physiology, Faculty of Medicine, Gaziantep, Turkey.
authors.forename: Şeniz
authors.initials: Ş
authors.lastname: Demiryürek
authors.affiliation: Gaziantep University, Department of Physiology, Faculty of Medicine, Gaziantep, Turkey.
authors.forename: Tuncer
authors.initials: T
authors.lastname: Demir
authors.affiliation: Gaziantep University, Department of Physiology, Faculty of Medicine, Gaziantep, Turkey.
authors.forename: Hüsne Didem
authors.initials: HD
authors.lastname: Atabay
authors.affiliation: Fırat University, Department of Pathology, Faculty of Veterinary Science, Elazığ, Turkey.
authors.forename: Ali Osman
authors.initials: AO
authors.lastname: Çeribasi
authors.affiliation: Gaziantep University, Department of Medical Biology, Faculty of Medicine, Gaziantep, Turkey.
authors.forename: Recep
authors.initials: R
authors.lastname: Bayraktar
authors.affiliation: Gaziantep University, Department of Physiology, Faculty of Medicine, Gaziantep, Turkey.
authors.forename: Davut Sinan
authors.initials: DS
authors.lastname: Kaplan
authors.affiliation: Gaziantep University, Department of Medical Biology, Faculty of Medicine, Gaziantep, Turkey.
authors.forename: Serdar
authors.initials: S
authors.lastname: Öztuzcu
authors.affiliation: Gazi University, Department of Medical Genetic, Faculty of Medicine, Ankara, Turkey.
authors.forename: Beyhan
authors.initials: B
authors.lastname: Cengiz
keywords: Apoptosis; Growth factors; Ischemia/reperfusion; Lung