Measurement of background translocation frequencies in individuals with clones

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In the leukemia case the unseparated B and T lymphocytes had a high translocation frequency even after 0.0014, respectively. After purging all clones from the data, the translocation frequencies for Bio 8 and Bio 23 were 0.00750.0014 and 0.0073 metaphases were scored for chromosomal aberrations,, specifically reciprocal translocations, using fluorescence in situ hybridization (FISH). Metaphase spreads were used from two healthy, unexposed individuals (not exposed to radiation, chemotherapy or radiotherapy) and one early B- precursor acute lymphocytic leukemia (ALL) patient (metaphase spreads from both separated T lymphocytes and unseparated B and T lymphocytes were scored). All three individuals had an ... continued below

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65 p.; Other: FDE: PDF; PL:

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Wade, M.J. August 1, 1996.

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In the leukemia case the unseparated B and T lymphocytes had a high translocation frequency even after 0.0014, respectively. After purging all clones from the data, the translocation frequencies for Bio 8 and Bio 23 were 0.00750.0014 and 0.0073 metaphases were scored for chromosomal aberrations,, specifically reciprocal translocations, using fluorescence in situ hybridization (FISH). Metaphase spreads were used from two healthy, unexposed individuals (not exposed to radiation, chemotherapy or radiotherapy) and one early B- precursor acute lymphocytic leukemia (ALL) patient (metaphase spreads from both separated T lymphocytes and unseparated B and T lymphocytes were scored). All three individuals had an abnormally high translocation frequency. The high translocation frequencies resulted from clonal expansion of specific translocated chromosomes. I show in this thesis that by purging (discounting or removing) clones from the data of unexposed individuals, one can obtain true background translocation frequencies. In two cases, Bio 8 and Bio 23, the measured translocation frequency for chromosomes 1, 2 and 4 was 0.0124 purging all of the clones from the data. This high translocation frequency may be due to a low frequency of some clones and may not be recognized. The separated T lymphocytes had a higher translocation frequency than expected.

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65 p.; Other: FDE: PDF; PL:

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OSTI as DE98050671

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  • Other Information: TH: MS

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  • Other: DE98050671
  • Report No.: UCRL-LR--125903
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 572769
  • Archival Resource Key: ark:/67531/metadc689982

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  • August 1, 1996

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 23, 2016, 1:52 p.m.

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Wade, M.J. Measurement of background translocation frequencies in individuals with clones, thesis or dissertation, August 1, 1996; California. (digital.library.unt.edu/ark:/67531/metadc689982/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.