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Nanoparticles Enter One's Brain Via Olfactory Bulb

MO-411 writes "An article in Nature News briefly looks at nanoparticles' entry into the brains of lab rats. The fascinating point is that the 35-nanometer particles entered via the olfactory passageways. Scientist confirmed this via plugging one side of the a rats nose. This is significant, as Ken Donaldson, a toxicologist at the University of Edinburgh, UK says. 'I would never have thought of looking for inhaled nanoparticles in the brain.' Think about it -- everything from kitty litter to wallboard dust is likely ending up inside the one's brain, circumventing the blood/brain barrier and all its protections. It also makes for an interesting delivery mechanism for other substances..."

15 of 38 comments (clear)

  1. Does this mean... by Molina+the+Bofh · · Score: 4, Funny

    ...that I'll be able to inhale caffeine ?

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    1. Re:Does this mean... by foniksonik · · Score: 2, Informative

      Nope, it means that you may already be inhaling caffeine along with millions of other nanoparticles... straight into your brain, that is if caffeine is a small enough particle.

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      A fool throws a stone into a well and a thousand sages can not remove it.
    2. Re:Does this mean... by Patrik_AKA_RedX · · Score: 3, Funny

      if it isn't illegal, it isn't fun. Ever heard of someone who had a good time sniffing salt or pepper?

    3. Re:Does this mean... by rollout · · Score: 2, Interesting

      Start the office pool - who's going to be the first athelete to use this excuse for a failed steroid test?

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      "Genius may have its limitations, but stupidity is not thus handicapped." --Elbert Hubbard
    4. Re:Does this mean... by Molina+the+Bofh · · Score: 3, Funny

      Nope, but I already heard of someone who had a good time making others sniffing pepper.

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      Roses are #FF0000, Violets are #0000FF, find / -name '*base*' |xargs chown -R us && mv zig greatjustice
  2. aside from the tempting drug references by hurtstotouchfire · · Score: 4, Interesting
    Wow this article is really just an invitation isn't it. But the article does talk about other interesting realms this might affect. This may also lead to a fuller understanding of the health effects of the nanosized particles produced by diesel engines.

    Inhalation Toxicology, the journal referenced at the bottom of the article, has some other interesting articles on nanoparticles. I searched for all the cancer-related articles that mention nanoparticles, and they do have several articles discussing nanoparticles being used in immunizations and various 'cures', which is kind of encouraging. It seems to me that any medication that we could just shoot through the brain/blood barrier, would be quicker and possibly more effective.

    Unfortunately, the archived articles require a membership, that I'm too lazy to get, to read.

  3. rack it up by wolfywolfy · · Score: 2, Funny

    some of us already knew about using the nasal passage to get 'small particles' across the blood-brain barrier . . ;)

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  4. Can Nanoparticles Enter Our Brains? by rpiquepa · · Score: 4, Informative

    You'll find more details and references in this overview, including an article from the Guardian. So far, the story is about rats, but Professor Gunter Oberdorster of the University of Rochester in New York said: "It's too early to be alarmed, because we don't yet know what the particles might do in humans. We shouldn't stop working with them, we should just look for what adverse effects these particles might cause." Now, more experiments are needed to determine how nanoparticles can enter our brains. In the mean time, let's hope that nanotechnology research will continue and will not be harmed by a moratorium.

  5. this would explain... by austad · · Score: 2, Funny

    ...why some people have shit for brains.

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  6. Yikes by Curtman · · Score: 3, Funny

    Next time someone farts near me they're liable to get a swift fist to the face.

  7. Re:Feature by Patrik_AKA_RedX · · Score: 4, Funny

    That's impossible. If God was like Bill Gates we wouldn't be able to get along without oftenly violently crashing into eachother, the world would be littered with bugs, sometime the weather would be so fucked up that houses collapse under it, and most of the religion wouldn't make sense.
    Wait a minute...

  8. so that's why by bluethundr · · Score: 2, Funny

    Think about it -- everything from kitty litter to wallboard dust is likely ending up inside the one's brain,

    So that must be why I've been scratching up the furniture, licking myself and pissing to "mark my territory". One side benefit (other than the obvious one of licking oneself) is that I've been saving a TON of money on food!

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    Quod scripsi, scripsi.
  9. Avoid smelly men's rooms from now on by Hoi+Polloi · · Score: 2, Funny

    If your brain picks up what you smell then this proves that my brain truly is full of shit!

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    It is by the juice of the coffee bean that thoughts acquire speed, the teeth acquire stains. The stains become a warning
  10. Evolution by Libertarian_Geek · · Score: 2, Interesting

    Please, don't start a huge tangent of creationism vs. evolution.
    So, I wonder why we evolved (were given if you prefer) this "feature". Does this have anything to do with how we remember or compare smells? What about fossilized or mummified brains, can we gather information about the environment of earlier periods using this? What effect does this play on allergies? Just wondering.

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  11. ok now lets get to the real question... by shaitand · · Score: 3, Funny

    If the ladies can no longer breath through their noses, how does this bode for oral sex?

    Am I the only one who is concerned that replacement females could become scarce if they are dying left and right from lack of oxygen?

    This is a serious issue, perhaps we should just keep this bit of research to ourselves gentlemen.