[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 2, Issue 2 (9-2004) ::
Int J Radiat Res 2004, 2(2): 85-88 Back to browse issues page
Determination of dose-response relationship in cultured human lymphocytes for biological dosimetry
S.A. Haeri, H. Mozdarani, M. Foroghizadeh, A. Mahmoudzadeh
, haeri80@yahoo.com
Abstract:   (19293 Views)

Background: Lymphocyte-dicentric assay is the most generally accepted method for biological dosimetry of overexposed individuals. In this study, the frequency of unstable chromosome
aberration in blood lymphocytes was used to estimate radiation dose received by individuals. Evaluation of dose using a calibration curve produced elsewhere may have a significant uncertainty therefore, experiments were performed to produce a dose-response curve using an
established protocol of international atomic energy agency.

Materials and Methods: Lymphocytes in whole peripheral blood obtained from healthy
individuals, were exposed to various doses of gamma radiation (0.25 – 4 Gy). Then after 1 hour of incubation in 37 oC, were cultured in complete RPMI-1640 medium. 500 mitoses were
analysed for the presence or absence of unstable chromosomal aberrations for each radiation dose after the standard metaphase preparation and staining slides.

Results and Conclusion: Intercellular distribution of dicentric chromosomes at each radiation dose has been used to contrast a dose-response curve. It seems that dose-effect relationship
follows with the linear-quadratic model. There is a good agreement between our dose-response curves with similar published studies by other laboratories. Iran . J. Radiat. Res., 2004 2 (2): 85-8 8

Keywords: Biological dosimetry, calibration curve, dicentric chromosome, human lymphocytes
Full-Text [PDF 184 kb]   (2989 Downloads)    
Type of Study: Original Research | Subject: Radiation Biology
Send email to the article author

Add your comments about this article
Your username or Email:


XML     Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

S.A. Haeri, H. Mozdarani, M. Foroghizadeh, A. Mahmoudzadeh. Determination of dose-response relationship in cultured human lymphocytes for biological dosimetry . Int J Radiat Res 2004; 2 (2) :85-88
URL: http://ijrr.com/article-1-62-en.html

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 2, Issue 2 (9-2004) Back to browse issues page
International Journal of Radiation Research
Persian site map - English site map - Created in 0.04 seconds with 32 queries by YEKTAWEB 4570