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Methylene Blue And Red Light - Caution

Discussion in 'Scientific Studies' started by Endocrinologist, Apr 26, 2016.

  1. Endocrinologist

    Endocrinologist Member

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  2. OP
    Endocrinologist

    Endocrinologist Member

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    "In conclusion, we have demonstrated, in an in vitro system, that exposing cells to MB [methylene blue] and WL [white light - especially red light], at concentrations similar to those used for endoscopic examination of tissue, can lead to elevated levels of DNA damage and apoptosis. We have also shown that by modifying the light emitted to remove wavelengths responsible for MB excitation these effects can be prevented. Reductions in the concentration of MB can achieve a similar effect. We propose that the introduction of a modification to current endoscope light sources in combination with optimization of the concentrations of MB will minimize DNA damage resulting from dye photoexcitation during MB chromoendoscopy. Moreover, by maximizing the amount of harmless light used, tissue visualization should not be compromised. These recommendations, however, require full evaluation in a clinical setting."
     
  3. paymanz

    paymanz Member

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    they use it as dye right?how much MB is need for that concentrations?i hope its not apply to ray's low dose of 1mg.
     
  4. amaranthine

    amaranthine Member

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    I mentioned this study in another thread, but it's talking about Barrett's esophagus & a chromoendoscopy. Would it still apply to healthy cells and topical application of MB? I dunno
     
  5. paymanz

    paymanz Member

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    topical yes, but oral is not that saturating tissues, in chromoendoscopy they saturate the tissues with it by injection i think.
     
  6. Giraffe

    Giraffe Member

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    I found the full text of this study.

    "However, illumination of cells with WL [white light] in the presence of 15 mM (0.5%) MB caused a significant elevation of DNA strand breaks (5.838 versus 30.91%; P , 0.01) in OE33 cells. [...] Reducing the MB concentration 10-fold (1.5 mM) caused a significant (P , 0.001) reduction in the amount of DNA damage induced when illuminated with WL when compared to that of 15 mM (0.5%) MB illuminated by WL, in terms of both strand breaks and FPG-sensitive sites (Figure 1A, P , 0.001). Furthermore, the amount of DNA damage arising from incubation with solutions of MB at concentrations equal to or ,1.5 mM were not significantly different from the control samples either maintained in the dark or illuminated in WL in the absence of dye (Figure 1A)."

    If I understand this right, they used a o.5% solution (5 mg/mL), the same solution that was used in a study they referenced (full text in Portuguese). In this study they first removed excess mucus with n-acetylcysteine, then sprayed the methylene blue solution, and finally removed excess methylene blue with distilled water.

    Haidut wrote in another thread that concentrations of 100 nM/L (nano!) are achieved by taking around 1 mg methylene blue daily. (Why Is Everyone Dramatically Under-dosing Methylene Blue?)
     
  7. paymanz

    paymanz Member

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    so 10mg MB a day should bring the level to around 1 mM , and for that 15mM damaging dose you should get 150 mg/day MB?
     
  8. Giraffe

    Giraffe Member

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    10 * 100 nM = 1,000 nM = 1 mcM

    If @haidut 's figure is correct and could be extrapolated (!) , you would need 150 grams of MB to get 15mM.
     
  9. paymanz

    paymanz Member

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    right:thumbsup:, i mistaken it with mcM, so it should be that big dose to turn the tissue in blue color, for chromoendoscopy.
     
  10. Ritchie

    Ritchie Member

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    In light of this study, could that mean that applying methylene blue topically (i.e. 1 or 2 drops), and then shining red light in that area may be dangerous for the localised cells?
     
  11. DaveFoster

    DaveFoster Member

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    Warning: Taking large doses of laboratory chemicals causes problems.
     
  12. CoolTweetPete

    CoolTweetPete Member

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    This was my experience.

    I used topical Oxidal on my scalp and used an LLLT red light device. I noticed aggressive shedding during a shower the next morning.
     
  13. michael94

    michael94 Member

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    No longer an issue. I am making a kickstarter patreon for red light pills. They look just like camera pills but emit red light instead.

    Come in 3 flavors.

    Reusable.
     
  14. judge

    judge Member

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    icecreamlover has strange sense of humor?
     
  15. jyb

    jyb Member

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    DNA damage and aptotosis is one of the main reasons why MB+light is popular in studies. It doesn't necessarily mean that it is bad. Coffee and I'm sure many other supplements can have the same effect.
     
  16. postman

    postman Member

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    what
     
  17. m_arch

    m_arch Member

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    Awh ***t!
     
  18. Dopamine

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  19. judge

    judge Member

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  20. paymanz

    paymanz Member

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    not sure if your serious about that, but niacin form is not safe in long term,at least in comparing to niacinamide.it can cause diabete like problems by increasing free fatty acids.
     
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