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Originally posted by this_is_who_we_are
reply to post by xavi1000
What's the deal with vitamin C? Is it supposed to be helpful in the event of radiation?
Exposure to either ionizing radiation or certain transition metals results in generation of reactive oxygen species that induce DNA damage, mutation, and cancer. Vitamin C (a reactive oxygen scavenger) is considered to be a dietary radioprotective agent. However, it has been reported to be genotoxic in the presence of certain transition metals, including copper. In order to explore the capacity of vitamin C to protect DNA from radiation-induced damage, and the influence of the presence of copper on this protection, we investigated vitamin C-mediated protection against radiation-induced damage to calf thymus DNA in vitro in the presence or absence of copper(II). Vitamin C (0.08–8.00 mM, pH 7.0) significantly reduced DNA damage induced by γ-irradiation (30–150 Gy) by 30–50%, similar to the protective effect of glutathione. However, vitamin C plus copper (50 μM) significantly enhanced γ-radiation-induced DNA damage. Low levels of added copper (5 μM), or chelation of copper with 1-N-benzyltriethylenetetraine tetrahydrochloride (BzTrien) and bathocuprinedisulfonic acid (BCSA), abolished the enhanced damage without diminishing the protective effect of vitamin C. These results indicate that vitamin C can act as: (1) an antioxidant to protect DNA damage from ionizing radiation; and (2) a reducing agent in the presence of copper to induce DNA damage. These effects are important in assessing the role of vitamin C, in the presence of mineral supplements or radioprotective therapeutic agents, particularly in patients with abnormally high tissue copper levels.
Please note that this page is under construction, and some of the readings are simulated
Please note that this page is under construction, and some of the readings are simulated
Originally posted by Moondust
For the So Cal detector, This shows an initial spike up to almost 1000 then 3 separate spikes at around 250 each. Very scary. Also, none of the other regions show this amount of activity. Doesn't look like a test to me.
www.blackcatsystems.com...
reply to post by xavi1000