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Radiation Research

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  1. Biological effects of high-energy neutrons measured in vivo using a vertebrate model.

    Radiation Research 172(4):473 (2009) PMID 19772468 PMCID PMC2796447

    Interaction of solar protons and galactic cosmic radiation with the atmosphere and other materials produces high-energy secondary neutrons from below 1 to 1000 MeV and higher. Although secondary neutrons may provide an appreciable component of the radiation dose equivalent received by space and ...
  2. Chk2 protects against radiation-induced genomic instability.

    Radiation Research 172(4):463 (2009) PMID 19772467

    The murine Chk2 kinase is activated after exposure to ionizing radiation and is necessary for p53-dependent apoptosis, but the role Chk2 plays in determining genomic stability is poorly understood. By analyzing the sensitivity of Chk2-deficient murine and human cells to a range of DNA-damaging a...
  3. The age at which cancer occurs-an overlooked parameter!

    Radiation Research 172(4):525 (2009) PMID 19772474

  4. Radiation risk modeling of thyroid cancer with special emphasis on the Chernobyl epidemiological data.

    Radiation Research 172(4):509 (2009) PMID 19772472

    Two recent studies analyzed thyroid cancer incidence in Belarus and Ukraine during the period from 1990 to 2001, for the birth cohort 1968 to 1985, and the related (131)I exposure associated with the Chernobyl accident in 1986. Contradictory age-at-exposure and time-since-exposure effect modific...
  5. Recognition of O6MeG lesions by MGMT and mismatch repair proficiency may be a prerequisite for low-dose radiation hypersensitivity.

    Radiation Research 172(4):405 (2009) PMID 19772461

    Low-dose hyper-radiosensitivity (HRS) is the phenomenon whereby cells exposed to radiation doses of less than approximately 0.5 Gy exhibit increased cell killing relative to that predicted from back-extrapolating high-dose survival data using a linear-quadratic model. While the exact mechanism r...
  6. Reversible effect of magnetic fields on human lymphocyte activation patterns: different sensitivity of naive and memory lymphocyte subsets.

    Radiation Research 172(4):444 (2009) PMID 19772465

    The aim of this study was to investigate the influence of 50 Hz magnetic or static magnetic fields of 0.5 mT on subsets of human CD4(+) T cells in terms of cytokine release/content, cell proliferation and intracellular free calcium concentration. CD4(+) T cells can be divided into different subs...
  7. Patricia W. Durbin (1927-2009).

    Radiation Research 172(4):526 (2009) PMID 19772475

  8. Modification of mortality and tumorigenesis by tocopherol-mono-glucoside (TMG) administered after X irradiation in mice and rats.

    Radiation Research 172(4):519 (2009) PMID 19772473

    The effects of TMG [2-(alpha-d-glucopyranosyl) methyl-2,5,7,8-tetramethylchroman-6-ol], a water-soluble vitamin E derivative, administered after irradiation on the mortality of X-irradiated mice and on the development of tumors in the mammary and pituitary glands in rats were investigated. When ...
  9. High content analysis of human fibroblast cell cultures after exposure to space radiation.

    Radiation Research 172(4):423 (2009) PMID 19772463

    Space travel imposes risks to human health, in large part by the increased radiation levels compared to those on Earth. To understand the effects of space radiation on humans, it is important to determine the underlying cellular mechanisms. While general dosimetry describes average radiation lev...
  10. Induction of cytokine gene expression in human thyroid epithelial cells irradiated with HZE particles (iron ions).

    Radiation Research 172(4):437 (2009) PMID 19772464 PMCID PMC2790807

    Gene expression profiles were examined using cDNA microarray technology in human thyroid epithelial (Htori-3) cells exposed to a low, non-toxic dose (10 cGy) of radiation from HZE particles in the form of iron ions in the absence or presence of selenomethionine (SeM). A total of 215 genes were d...