Comparison of X-ray dose-response curves obtained by chromosome painting using conventional and PAINT nomenclatures

Purpose: The compare the suitability of PAINT and conventional nomenclature systems for the construction of chromosome aberration dose-effect curves for X-rays using FISH techniques, and to compare these curves with those based on solid-stained dicentrics analysed in first division metaphases by the...

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Bibliographic Details
Published in:International journal of radiation biology 1999, Vol.75 (12), p.1557-1566
Main Authors: Barquinero, J.F., Cigarran, S., Caballin, M. R., Braselmann, H., Ribas, M., Egozcue, J., Barrios, L.
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Calibration
Chromosome Aberrations
Chromosome Painting - methods
Chromosomes, Human - radiation effects
Chromosomes, Human, Pair 1 - radiation effects
Chromosomes, Human, Pair 11 - radiation effects
Chromosomes, Human, Pair 4 - radiation effects
Dose-Response Relationship, Radiation
Effects of various physical factors on living matter (vibrations, electric field, ultrasound, sound...)
Female
Fundamental and applied biological sciences. Psychology
Humans
Male
Medical genetics
Medical sciences
Metaphase - physiology
Terminology as Topic
Tissues, organs and organisms biophysics
X-Rays
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Summary:Purpose: The compare the suitability of PAINT and conventional nomenclature systems for the construction of chromosome aberration dose-effect curves for X-rays using FISH techniques, and to compare these curves with those based on solid-stained dicentrics analysed in first division metaphases by the FPG technique. Materials and methods: Blood samples were irradiated at 0.1, 0.25, 0.50, 0.75, 1, 1.5, 2, 3, 4 and 5Gy 180kV X-rays. FISH painting was performed using probes for chromosomes 1, 4 and 11 in combination with a pan-centromeric probe. Results: Translocations showed a higher background frequency than dicentrics. This influences the ratio of translocations:dicentrics at the lower doses and the uncertainties of dose-effect curves for translocations. The dose-effect curves for dicentrics obtained by FISH and solid stain were in close agreement. Conclusion: For short-term biological dosimetry purposes by FISH, the use of dic (BA) (PAINT nomenclature) or total dicentrics (conventional nomenclature) should give similar dose estimates. For dose reconstruction, the use of total or complete translocations result in similar uncertainties.
ISSN:0955-3002
1362-3095
DOI:10.1080/095530099139160