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Mutat Res. 1979 Nov;63(1):189-99.

G2 chromosomal radiosensitivity in Fanconi's anemia.

Abstract

Both the peripheral lymphocytes from 4 patients affected with the inherited disease Fanconi's anemia (FA), and tissue-culture fibroblasts from skin biopsies from 3 patients similarly affected were found to be about twice as sensitive to the induction of chromatid-type chromosomal aberrations by X-rays administratered in the G2 phase of the cell cycle as cells from normal controls. Using tritiated thymidine labelling of peripheral lymphocytes and of cultured fibroblasts, it was determined that 3 affected patients and 3 normal controls all had similar percent labeled mitoses (PLM) curves, so the increased induced aberration yields seen in the FA cells do not appear to be simply a consequences of a longer than normal G2 phase of the cell cycle.

PMID:
522866
DOI:
10.1016/0027-5107(79)90115-5
[Indexed for MEDLINE]

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