research

Stunning Research Shows High Potential for DNA Damage from Nanoparticles

Saturday, March 27, 2010 by: David Gutierrez, staff writer
Tags: nanoparticles, DNA damage, health news

eTrust Pro Certified

Most Viewed Articles
Popular on Facebook
CDC issues flu vaccine apology: this year's vaccine doesn't work!
Biologist explains how marijuana causes tumor cells to commit suicide
Depopulation test run? 75% of children who received vaccines in Mexican town now dead or hospitalized
BAM! Chipotle goes 100% non-GMO; flatly rejecting the biotech industry and its toxic food ingredients
Companies begin planting microchips under employees' skin
U2's Bono partners with Monsanto to destroy African agriculture with GMOs
NJ cops bust teenagers shoveling snow without a permit
Russia throws down the gauntlet: energy supply to Europe cut off; petrodollar abandoned as currency war escalates
McDonald's in global profit free fall as people everywhere increasingly reject chemically-altered toxic fast food
Chemotherapy kills cancer patients faster than no treatment at all
Why flu shots are the greatest medical fraud in history
600 strains of an aerosolized thought control vaccine already tested on humans; deployed via air, food and water
Italian court rules mercury and aluminum in vaccines cause autism: US media continues total blackout of medical truth
Flu vaccine kills 13 in Italy; death toll rises
The 21 curious questions we're never allowed to ask about vaccines
Vicious attack on Dr. Oz actually waged by biotech mafia; plot to destroy Oz launched after episode on glyphosate toxicity went viral
Orthorexia Nervosa - New mental disorder aimed at people who insist on eating a clean diet
Whooping cough outbreak at Massachusetts high school affected only vaccinated students

Delicious
(NaturalNews) Nanoparticles may be able to damage the DNA of cells without ever coming into contact with it, according to a study conducted by researchers from the Bristol Implant Research Center and published in the journal Nature Nanotechnology.

Nanoparticles are particles so small that they have fundamentally different physical and chemical properties than the same substances do at more familiar scales. Industry is increasingly adopting nanotechnology for a variety of applications, from consumer products to medicine, but the technology remains unregulated.

Researchers created particles of chromium and cobalt that were either four millionths (micro scale) or 30 billionths (nano scale) of a meter across, then placed them on a thin, artificial membrane composed of human cells. On the other side of the membrane, researchers placed human fibroblast cells, which are important components of connective tissue.

They found that although no particles crossed the cellular membrane, fibroblast cells placed across from the metal particles suffered DNA damage in 10 times as many locations and cells placed next to a membrane with nothing on the other side.

Researchers are unsure how the particles damaged the cells without crossing the membrane, but they believe they may cause changes in the membrane cells, which in turn signal the fibroblast cells and cause DNA damage.

"We used a variety of chemicals to block ... cell-to-cell signaling and found that in the presence of these blockers, the damage we were seeing was completely prevented," lead author Gevdeep Bhabra said.

The experiment was conducted with cobalt and chromium because both of those metals are currently used in medical implants. The researchers noted, however, that it would be unlikely for wear and tear to produce enough nano- or micro-sized particles to reach the concentrations used in the study. The implications of the study center more around the risks of actual nanotechnology.

Nanoparticles are already used in the manufacture of sunscreens, cosmetics, sporting goods and other consumer products. Researchers are also investigating their use as drug-delivery mechanisms.

Sources for this story include: news.bbc.co.uk.

Join over four million monthly readers. Your privacy is protected. Unsubscribe at any time.
comments powered by Disqus
Take Action: Support NaturalNews.com by linking back to this article from your website

Permalink to this article:

Embed article link: (copy HTML code below):

Reprinting this article:
Non-commercial use OK, cite NaturalNews.com with clickable link.

Follow Natural News on Facebook, Twitter, Google Plus, and Pinterest

Colloidal Silver

Advertise with NaturalNews...

Support NaturalNews Sponsors:

Advertise with NaturalNews...

GET SHOW DETAILS
+ a FREE GIFT

Sign up for the FREE Natural News Email Newsletter

Receive breaking news on GMOs, vaccines, fluoride, radiation protection, natural cures, food safety alerts and interviews with the world's top experts on natural health and more.

Join over 7 million monthly readers of NaturalNews.com, the internet's No. 1 natural health news site. (Source: Alexa.com)

Your email address *

Please enter the code you see above*

No Thanks

Already have it and love it!

Natural News supports and helps fund these organizations:

* Required. Once you click submit, we will send you an email asking you to confirm your free registration. Your privacy is assured and your information is kept confidential. You may unsubscribe at anytime.