PMID- 9042404 OWN - NLM STAT- MEDLINE DCOM- 19970321 LR - 20190702 IS - 0027-5107 (Print) IS - 0027-5107 (Linking) VI - 373 IP - 2 DP - 1997 Feb 3 TI - X-ray-sensitivity of lymphocytes of aplastic- and Diamond-Blackfan-anemia patients as detected by conventional cytogenetic and chromosome painting techniques. PG - 225-35 AB - Frequencies of spontaneously occurring and X-ray induced, stable and unstable types of chromosome aberrations in peripheral blood lymphocytes from two groups of radiosensitive patients, i.e., aplastic anemia (AA) and Diamond-Blackfan anemia (DBA), were determined. Two types of staining methods, i.e., chromosome painting with two cocktails of chromosome-specific DNA libraries (Nos. 1, 3, X and Nos. 2, 4 and 8), as well as conventional Giemsa staining, were employed. Chromosome painting was done with single and multicolor fluorescence in situ hybridization (FISH). The frequencies of spontaneously occurring chromosome aberrations in AA and DBA patients were not significantly different from healthy individuals. Hypersensitivity to X-rays was seen both in G0 as well as in G2 phase of the cell cycle in lymphocytes from AA and DBA patients, confirming our earlier findings using micronucleus (DBA) and G2 radiosensitivity (AA) assays. FAU - van Diemen, P C AU - van Diemen PC AD - MGC, Department of Radiation Genetics and Chemical Mutagenesis, Leiden University, The Netherlands. FAU - Maasdam, D AU - Maasdam D FAU - Darroudi, F AU - Darroudi F FAU - Natarajan, A T AU - Natarajan AT LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Mutat Res JT - Mutation research JID - 0400763 SB - IM MH - Anemia, Aplastic/*genetics MH - Cell Cycle MH - *Chromosome Aberrations MH - Chromosome Banding/methods MH - Fanconi Anemia/*genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Lymphocytes/*radiation effects MH - Radiation Tolerance MH - Translocation, Genetic EDAT- 1997/02/03 00:00 MHDA- 1997/02/03 00:01 CRDT- 1997/02/03 00:00 PHST- 1997/02/03 00:00 [pubmed] PHST- 1997/02/03 00:01 [medline] PHST- 1997/02/03 00:00 [entrez] AID - S0027-5107(96)00201-1 [pii] AID - 10.1016/s0027-5107(96)00201-1 [doi] PST - ppublish SO - Mutat Res. 1997 Feb 3;373(2):225-35. doi: 10.1016/s0027-5107(96)00201-1.