Navigation Links
Nanoparticles used in common household items caused genetic damage in mice
Date:11/16/2009

oxicity, possibly caused by a secondary mechanism associated with inflammation and/or oxidative stress. Given the growing use of these nanoparticles, these findings raise concern about potential health hazards associated with exposure."

The manufacture of TiO2 nanoparticles is a huge industry, Schiestl said, with production at about two million tons per year. In addition to paint, cosmetics, sunscreen and vitamins, the nanoparticles can be found in toothpaste, food colorants, nutritional supplements and hundreds of other personal care products.

"It could be that a certain portion of spontaneous cancers are due to this exposure," Schiestl said. "And some people could be more sensitive to nanoparticles exposure than others. "I believe the toxicity of these nanoparticles has not been studied enough."

Schiestl said the nanoparticles cannot go through skin, so he recommends using a lotion sunscreen. Spray-on sunscreens could potentially be inhaled and the nanoparticles can become lodged in the lungs.

The mice were exposed to the TiO2 nanoparticles in their drinking water and began showing genetic damage on the fifth day. The human equivalent is about 1.6 years of exposure to the nanoparticles in a manufacturing environment. However, Schiestl said, it's not clear if regular, everyday exposure in humans increases exponentially as continued contact with the nanoparticles occurs over time.

"These data suggest that we should be concerned about a potential risk of cancer or genetic disorders especially for people occupationally exposed to high concentrations of titanium dioxide nanoparticles, and that it might be prudent to limit their ingestion through non-essential drug additives, food colors, etc.," the study states.

Next, Schiestl and his team will study exposure to the nanoparticles in mice that are deficient in DNA repair, to perhaps help find a way to predict which people might be particularly sensitive to them
'/>"/>

Contact: Kim Irwin
kirwin@mednet.ucla.edu
310-206-2805
University of California - Los Angeles
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Behavior modification could ease concerns about nanoparticles
2. Knocking nanoparticles off the socks
3. Clemson bioengineer uses nanoparticles to target drugs
4. Therapeutic nanoparticles give new meaning to sugar-coating medicine
5. Carbon nanoparticles toxic to adult fruit flies but benign to young
6. New insights into health and environmental effects of carbon nanoparticles
7. Facile synthesis of nanoparticles with multiple functions advanced in Singapore
8. University of Leicester researchers discover new fluorescent silicon nanoparticles
9. New nanoparticles could revolutionize therapeutic drug discovery
10. Shape matters in the case of cobalt nanoparticles
11. To fight drug addiction, UB researchers target the brain with nanoparticles
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/19/2014)... Some infants born with neonatal abstinence syndrome ... more difficult time going through withdrawal than others, ... While genetic and epigenetic (when genes are turned ... as potential factors, researchers at Boston University School ... conducted a first of its kind study to ...
(Date:8/19/2014)... students in college biology and other science courses ... quantitative ways, and now they have a new ... the Life Sciences," published this month by Princeton ... Institute for Mathematical and Biological Synthesis (NIMBioS), teaches ... can be used to explore and explain biological ...
(Date:8/19/2014)... of UTSA researchers has been awarded a nearly $40,000 ... Training (NCPTT), an office of the National Park Service ... will fund a one-year study of the energy efficiency ... homes in hot, humid climates. , Radiant barriers are ... that reflect heat back, thereby reducing the amount of ...
Breaking Biology News(10 mins):In-utero methadone, Subutex exposure could alter gene expression, cause severe Neonatal Abstience Syndrome 2New textbook introduces undergraduates to mathematics for the life sciences 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 3
... certain disease mechanisms, illness progression and response to new ... such as nematodes, fruit flies or zebra fish. ... of many individual animals to detect mutants worthy of ... system that uses artificial intelligence and cutting-edge image processing ...
... scientists at the University of California, Berkeley, provide a clearer ... change, and where they go. One study, published ... Biology , finds that changes in precipitation have been underappreciated ... normal range. In the other study, published today (Wednesday, Aug. ...
... Mich. --- Two new species of owls have been discovered ... a key role in confirming their existence. The ... Forktail, the Journal of Asian Ornithology , took years to ... paper,s lead author Pam Rasmussen, MSU assistant professor of zoology ...
Cached Biology News:Artificial intelligence helps detect subtle differences in mutant worms 2Artificial intelligence helps detect subtle differences in mutant worms 3Artificial intelligence helps detect subtle differences in mutant worms 4Studies shed light on why species stay or go in response to climate change 2Studies shed light on why species stay or go in response to climate change 3Studies shed light on why species stay or go in response to climate change 42 new owls discovered in the Philippines 2
(Date:8/20/2014)... , Aug. 20, 2014 /PRNewswire-iReach/ -- A ... transformative collaboration between the school,s bioengineering department and ... of the Intel® Software Academic Program, UCSD,s research ... and the human body.  Photo ... study exhibits the work of Dr. Todd ...
(Date:8/20/2014)... 2014 GraphDB™ 6.0 ... improvements to the enterprise replication cluster, faster loading ... SOLR and Elasticsearch. This release happens to coincide ... triplestore – GraphDB™ was formerly known as OWLIM. ... only mature enterprise resilient RDF triplestore will also ...
(Date:8/19/2014)... Research and Markets  has announced the addition of the ... report to their offering. This report analyzes the ... by the following Product Segments: Media, Sera, and Reagents. ... Canada , Japan , Europe ... America . Annual estimates and forecasts are provided for the ...
(Date:8/19/2014)... DUBLIN , Aug. 19, 2014 Research ... Oxide Fuel Cells (SOFCs) - Global Strategic Business Report" ... the worldwide markets for Solid Oxide Fuel Cells (SOFCs) in ... US, Canada , Europe ... Annual estimates and forecasts are provided for the period 2012 ...
Breaking Biology Technology:Intel and University of San Diego Bioengineering Department Release Case Study on Health Sciences Research 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 2Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 3Ontotext Improves Its RDF Triplestore, GraphDB™ 6.0: Enterprise Resilience, Faster Loading Speeds and Connectors to Full-Text Search Engines Top the List of Enhancements 4Global Cell and Tissue Culture Supplies - Strategic Business Report 2014 2Global Solid Oxide Fuel Cells (SOFCs) - Strategic Business Report 2014 2
... game of inches," but biology is a game of nanometers, ... the fate of a cell - whether it lives or ... Department of Energy (DOE),s Lawrence Berkeley National Laboratory (Berkeley Lab) ... impact of spatial patterns on living cells. Chemist Jay ...
... GAITHERSBURG, Maryland, November 2, 2011 - ... -based HPV Testing Increases Screening Coverage and is More Sensitive ... in the Lancet Promising findings published today ... community-based, randomized equivalence trial undertaken by public health authorities in ...
... Epitomics, Inc., a California based biotech company, announced ... Allowance from the United States Patent and Trademark ... Proteins (application 10/705,109).  The Notice allowed 17 claims ... samples using libraries of antibodies.  This method has ...
Cached Biology Technology:Berkeley Lab scientists develop new tool for the study of spatial patterns in living cells 2Berkeley Lab scientists develop new tool for the study of spatial patterns in living cells 3Home-based Self-collected Vaginal Specimens Detect More Cervical Lesions and Cancers Than Cytology 2Home-based Self-collected Vaginal Specimens Detect More Cervical Lesions and Cancers Than Cytology 3Home-based Self-collected Vaginal Specimens Detect More Cervical Lesions and Cancers Than Cytology 4Home-based Self-collected Vaginal Specimens Detect More Cervical Lesions and Cancers Than Cytology 5
...
Experion StdSens chips are the microfluidic chips used to perform standard-sensitivity RNA analysis (nanogram levels) with the Experion automated electrophoresis system. Each chip has the capacity to...
Experion HighSens chips are the microfluidic chips used to perform high-sensitivity RNA analysis (picogram levels) with the Experion automated electrophoresis system. Each chip has the capacity to ru...
...
Biology Products: