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C Crone J Frokjaer-Jensen JJ Friedman O Christensen 《The Journal of general physiology》1978,71(2):195-220
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Końca K Lankoff A Banasik A Lisowska H Kuszewski T Góźdź S Koza Z Wojcik A 《Mutation research》2003,534(1-2):15-20
The single-cell gel electrophoresis, also known as the comet assay, has gained wide-spread popularity as a simple and reliable method to measure genotoxic and cytotoxic effects of physical and chemical agents as well as kinetics of DNA repair. Cells are generally stained with fluorescent dyes. The analysis of comets--damaged cells which form a typical comet-shaped pattern--is greatly facilitated by the use of a computer image-analysis program. Although several image-analysis programs are available commercially, they are expensive and their source codes are not provided. For Macintosh computers a cost-free public domain macro is available on the Internet. No ready for use, cost-free program exists for the PC platform. We have, therefore, developed such a public domain program under the GNU license for PC computers. The program is called CASP and can be run on a variety of hardware and software platforms. Its practical merit was tested on human lymphocytes exposed to gamma-rays and found to yield reproducible results. The binaries for Windows 95 and Linux, together with the source code can be obtained from: http://www.casp.of.pl. 相似文献
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Wojcik A Stephan G Sommer S Buraczewska I Kuszewski T Wieczorek A Gózdz S 《Radiation research》2003,160(6):677-683
In February 2001 a radiation accident occurred in a radiotherapy unit of an oncology hospital in Poland. Five breast cancer patients undergoing radiotherapy received a single high dose of 8 MeV electrons. The exact doses are not known, but they were heterogeneous and may have reached about 100 Gy. To assess whether such exposure would be detectable in peripheral blood lymphocytes, chromosomal aberrations and micronuclei were analyzed in lymphocytes from the accident patients and compared to values for lymphocytes from 10 control patients who were not involved in the accident but who received similar radiotherapy treatments. Lymphocytes were harvested for analysis of chromosomal aberrations at three different culture times to determine whether heavily damaged cells reached mitosis with a delay. There was no effect of harvest time on the frequencies of chromosomal aberrations, indicating that there was no delay of heavily damaged cells in entering mitosis. A good correlation was observed between micronuclei and chromosomal aberrations. In lymphocytes from three of the accident patients, significantly enhanced frequencies of both aberrations and micronuclei were found. The great individual variability observed in the frequency of cytogenetic damage in lymphocytes from both control and accident patients precluded the unambiguous identification of all accident patients. 相似文献
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Lipoteichoic acid is an important microbe-associated molecular pattern of Lactobacillus rhamnosus GG
Claes Ingmar JJ Segers Marijke E Verhoeven Tine LA Dusselier Michiel Sels Bert F De Keersmaecker Sigrid CJ Vanderleyden Jos Lebeer Sarah 《Microbial cell factories》2012,11(1):1-8