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Formerly Journal of Turgut Ozal Medical Center - ISSN 1300-1744

  • Annals of Medical Research



    Annals of Medical Research International Monthly Published Medical Journal

  • Annals of Medical Research

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  • Annals of Medical Research


    Annals of Medical Research indexed in TÜBİTAK/ULAKBİM Tıp Veri Tabanı

  • Annals of Medical Research


    Annals of Medical Research indexed in

  • Annals of Medical Research
  • Annals of Medical Research
  • Annals of Medical Research
  • Annals of Medical Research

Dear readers,

Our journal is the official publication of Inonu University Medical Faculty and published uninterruptedly for 25 years. It was first published as the name of Inonu University Medical Journal and later as Journal of Turgut Ozal Medical Center. During its publication period, the journal accepted Turkish or English articles for publication.

Abstracting in an international index is just a paramount objective in the 25th year of the journal. Because of this goal, it was necessary to make a decision both in terms of journal name and publication language. It was important in this respect that the name of a general medical journal should be related to medicine again and it should be in English. For these reasons, the name of the journal was switched to Annals of Medical Research and its publication language is changed to in English. The logo of the journal was chosen as an apricot, which is the symbol of our city Malatya, the world capital of apricot. I hope the journal succeeds with its new name. Annals of Medical Research is It is published monthly.

Editor-in-Chief
Cuneyt Kayaalp

 

The effects of endosulfan on the expression levels of DNA damage and apoptotic genes in HT22 cells: First preliminary study (p.1966-71)

The effects of endosulfan on the expression levels of DNA damage and apoptotic genes in HT22 cells: First preliminary study (p.1966-71)

Sibel Demir Ozturk1, Sadegul Tuncer1, Husniye Rustemoglu1, Aydin Rustemoglu2
1Department of Medical Biology, Faculty of Medical, Tokat Gaziosmanpasa University, Tokat, Turkey
2Department of Medical Biology, Faculty of Medical, Aksaray University, Aksaray, Turkey

Copyright © 2020 by authors and Annals of Medical Research Publishing Inc.

Abstract

Aim: The aim of this study was to determine the IC50 dose of endosulfan in the hippocampal HT22 cell line, and also to elucidate the effect of expression of DNA-PK, Bax, Bcl2 and Casp-3 genes involved in DNA repair and apoptotic pathway.
Material and Methods: Cytotoxic effect of endosulfan and IC50 dose were determined by using XTT method after 24 hours of culture by applying endosulfan at 5 different concentrations (10, 25, 50, 75 and 100 μM) to HT22 cell lines.
HT22 cells were then seeded into 6 sterile plates and treated with Endosulfan at IC50 for 12 hours. The expression changes of DNA-Pk, Bax, Bcl2 and Casp-3 genes, after total RNA isolation and cDNA formation, were determined by RT-PCR. Expression levels were calculated using the comparative 2-ΔΔCt method.
Results: After 24 hours of endosulfan treatment at different doses in HT22 cell lines, a significant loss of viability was observed in all endosulfan treated groups. It was determined by XTT test, that the IC50 dose of endosulfan was 50 μM in 24 hours treatment. After 12 hours administration of IC50 endosulfan dose in HT22 cells following the examinations of DNA-PK and some apoptotic genes we observed different amounts of increases in expression as follows; 5-fold for DNA-PK, 18-fold for Bax, and 4-fold for Casp-3. On the other hand, approximately 2-fold decrease was detected in Bcl-2 gene.
Conclusion: The IC50 dose of 24-hour endosulfan administration in HT22 cell lines was found to be 50 μM. Expression changes in the proapoptotic and antiapoptotic genes have shown that apoptosis is induced in endosulfan-administrated cells. In addition, the increase in DNA-PK gene expression suggests that endosulfan causes DNA damage in cells and triggers DNA repair mechanisms

Keywords: Apoptosis; DNA-PK; endosulfan; HT22

 

 

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doi: 10.5455/annalsmedres.2020.01.05     

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Annals of Medical Research is the scientific official journal of the Inonu University Faculty of Medicine. It is published monthly. The essential aim of the Annals of Medical Research is to publish scientifically high quality clinical and experimental research articles on fields of medicine which can contribute to the literature data. In addition, review articles, case reports, editorials, letters to the editors and manuscripts on publication ethics and medical history, which can contribute to the education and practices of physicians and health sector professionals within the scope of the journal’s target audience and which can increase the level of scientific communication between the authors and readers, are included in the scope of the journal.

 

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