What question did this study set out to answer?

To determine the clearance rates and lifespans of specific radiation-induced chromosome aberrations in circulating human lymphocytes following radiotherapy.

May 1, 1966BloodOpen Access

Elimination of Chromosome Aberrations from Human Lymphocytes

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To determine the clearance rates and lifespans of specific radiation-induced chromosome aberrations in circulating human lymphocytes following radiotherapy.
Measured chromosome aberration frequencies longitudinally in peripheral blood lymphocytes of N=36 hematologically normal women after radiation therapy for cervical carcinoma.
Calculated exponential decay kinetics and mean cellular lifetimes for cells harboring acentric fragments, dicentrics, and quasidiploid rearrangements.
Cells containing acentric fragments, single dicentrics, and quasidiploid rearrangements decreased exponentially with average lifetimes of 530 ± 64 days, 788 ± 98 days, and 5.55 ± 1.23 × 10³ days, respectively.
Aneuploid cells lacking structural damage showed a stable frequency of approximately 5.8%, whereas structurally abnormal aneuploid cells were eliminated at the same rate as cells with acentric fragments.
The post-therapy distribution of dicentrics in patient lymphocytes matched the distribution observed in human lymphocytes irradiated in vitro with a single dose of ~300 rads.

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Implication

Cohort study reveals exponential elimination rates of radiation-induced chromosomal aberrations in post-radiotherapy women, indicating variable persistence among damaged lymphocyte subsets.

Cite This Study

Norman et al. (1966) studied this question.

synapsesocial.com/papers/6a765668ed7478b74d087abd https://doi.org/10.1182/blood.v27.5.706.706

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Implication

Cohort study reveals exponential elimination rates of radiation-induced chromosomal aberrations in post-radiotherapy women, indicating variable persistence among damaged lymphocyte subsets.

Elimination of Chromosome Aberrations from Human Lymphocytes

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Discussion

Implication

Cite This Study

Elimination of Chromosome Aberrations from Human Lymphocytes

Key Points

Discussion

Implication

Cite This Study

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