Tritium level in Japanese diet and human tissue

Hisamatsu, Shun’ichi; Ohmura, Toshiaki; Takizawa, Yukio; Katsumata, Teiʼichi; Inoue, Yoshikazu; Itoh, M.; Ueno, K.; Sakanoue, Masanobu

doi:10.1007/bf02037425

Cited by 9 publications

(2 citation statements)

References 23 publications

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“…Additionally, the potential role of radionuclides in brain cancer etiology could be tested via molecular epidemiology. Tritium and uranium can be measured in blood and urine ( Belloni et al 1983 ) as well as in solid tissues, including the brain ( Hisamatsu et al 1992 ; Ujeno et al 1986 ). Thus, a case–control study of radionuclides in biological samples from individuals with and without brain cancer may be feasible.…”

Section: Discussionmentioning

confidence: 99%

Brain cancer incidence rates and the presence of nuclear reactors in US states: a hypothesis-generating study

Williamson

Klug

Schwartz

2021

Environ Geochem Health

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Background The etiology of brain cancer is poorly understood. The only confirmed environmental risk factor is exposure to ionizing radiation. Because nuclear reactors emit ionizing radiation, we examined brain cancer incidence rates in the USA in relation to the presence of nuclear reactors per state. Methods Data on brain cancer incidence rates per state for Whites by sex for three age groups (all ages, 50 and older, and under 50) were obtained from cancer registries. The location, number, and type of nuclear reactor, i.e., power or research reactor, was obtained from public sources. We examined the association between these variables using multivariate linear regression and ANOVA. Results Brain cancer incidence rates were not associated with the number of nuclear power reactors. Conversely, incidence rates per state increased with the number of nuclear research reactors. This was significant for both sexes combined and for males in the ‘all ages’ category (β = 0.08, p = 0.0319 and β = 0.12, p = 0.0277, respectively), and for both sexes combined in the’50 and older’ category (β = 0.18, p = 0.0163). Brain cancer incidence rates for counties with research reactors were significantly higher than the corresponding rates for their states overall (p = 0.0140). These findings were not explicable by known confounders. Conclusions Brain cancer incidence rates are positively associated with the number of nuclear research reactors per state. These findings merit further exploration and suggest new opportunities for research in brain cancer epidemiology.

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Section: Discussionmentioning

confidence: 99%

Brain cancer incidence rates and the presence of nuclear reactors in US states: a hypothesis-generating study

Williamson

Klug

Schwartz

2021

Environ Geochem Health

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“…Citons au niveau international certains organismes comme l'AIEA (Autriche), l'USDOE (USA), l'AECL (Canada) ou encore le NIRS (Japon) qui organisent des circuits d'intercomparaison principalement dans l'eau, mais aussi mesure du TOL dans des matrices environnementales et dans un cas particulier sur des tissus humains (Hisamatsu et al, 1992). Ces résultats montrent que : (i) pour chaque concentration, les écarts type de répétabilité sont inférieurs à ceux de reproductibilité ; (ii) ces écarts augmentent de façon significative lorsque la concentration diminue ; (iii) pour la concentration la plus faible de 10 Bq.L -1 , l'écart type de répétabilité étant de l'ordre de 11 %, ceci définit la limite de quantification de cette méthode (Curie, 1999).…”

Section: Exercices D'intercomparaison Tritium Libre Et Tritium Organiqueunclassified