Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
Study Reveals Nanoparticles Found in Everyday Items Can Inhibit Fat Storage (cause premature aging)
http://commcgi.cc.stonybrook.edu/am2/publish/General_University_News_2/SBU-Led_Study_Reveals_Nanoparticles_Found_in_Everyday_Items_Can_Inhibit_Fat_Storage.shtml[font face=Serif]Contact: · 631.632.6310
Stony Brook University, 310 Admin · Stony Brook, NY 11794-0701
[font size=5] SBU-Led Study Reveals Nanoparticles Found in Everyday Items Can Inhibit Fat Storage[/font]
Apr 18, 2013 - 2:45:00 PM
[font size=3]STONY BROOK, NY, April 18, 2013 – New research reveals that pure gold nanoparticles found in everyday items such as personal care products, as well as drug delivery, MRI contrast agents and solar cells can inhibit adipose (fat) storage and lead to accelerated aging and wrinkling, slowed wound healing and the onset of diabetes. The researchers, led by Tatsiana Mironava, a visiting assistant professor in the Department of Chemical and Molecular Engineering at Stony Brook University, detail their research, “Gold nanoparticles cellular toxicity and recovery: Adipose Derived Stromal cells,” in the journal Nanotoxicology.
Together with co-author Dr. Marcia Simon, Professor of Oral Biology and Pathology at Stony Brook University, and Director of the University’s Living Skin Bank, a world-class facility that has developed skin tissue for burn victims and various wound therapies, the researchers tested the impact of nanoparticles in vitro on multiple types of cells, including adipose (fat) tissue, to determine whether their basic functions were disrupted when exposed to very low doses of nanoparticles. Subcutaneous adipose tissue acts as insulation from heat and cold, functions as a reserve of nutrients, and is found around internal organs for padding, in yellow bone marrow and in breast tissue.
They discovered that the human adipose-derived stromal cells – a type of adult stem cells – were penetrated by the gold nanoparticles almost instantly and that the particles accumulated in the cells with no obvious pathway for elimination. The presence of the particles disrupted multiple cell functions, such as movement; replication (cell division); and collagen contraction; processes that are essential in wound healing.
According to the researchers, the most disturbing finding was that the particles interfered with genetic regulation, RNA expression and inhibited the ability to differentiate into mature adipocytes or fat cells. “Reductions caused by gold nanoparticles can result in systemic changes to the body,” said Professor Mironava. “Since they have been considered inert and essentially harmless, it was assumed that pure gold nanoparticles would also be safe. Evidence to the contrary is beginning to emerge.”
…[/font][/font]
http://dx.doi.org/10.3109/17435390.2013.769128Stony Brook University, 310 Admin · Stony Brook, NY 11794-0701
[font size=5] SBU-Led Study Reveals Nanoparticles Found in Everyday Items Can Inhibit Fat Storage[/font]
Apr 18, 2013 - 2:45:00 PM
[font size=3]STONY BROOK, NY, April 18, 2013 – New research reveals that pure gold nanoparticles found in everyday items such as personal care products, as well as drug delivery, MRI contrast agents and solar cells can inhibit adipose (fat) storage and lead to accelerated aging and wrinkling, slowed wound healing and the onset of diabetes. The researchers, led by Tatsiana Mironava, a visiting assistant professor in the Department of Chemical and Molecular Engineering at Stony Brook University, detail their research, “Gold nanoparticles cellular toxicity and recovery: Adipose Derived Stromal cells,” in the journal Nanotoxicology.
Together with co-author Dr. Marcia Simon, Professor of Oral Biology and Pathology at Stony Brook University, and Director of the University’s Living Skin Bank, a world-class facility that has developed skin tissue for burn victims and various wound therapies, the researchers tested the impact of nanoparticles in vitro on multiple types of cells, including adipose (fat) tissue, to determine whether their basic functions were disrupted when exposed to very low doses of nanoparticles. Subcutaneous adipose tissue acts as insulation from heat and cold, functions as a reserve of nutrients, and is found around internal organs for padding, in yellow bone marrow and in breast tissue.
They discovered that the human adipose-derived stromal cells – a type of adult stem cells – were penetrated by the gold nanoparticles almost instantly and that the particles accumulated in the cells with no obvious pathway for elimination. The presence of the particles disrupted multiple cell functions, such as movement; replication (cell division); and collagen contraction; processes that are essential in wound healing.
According to the researchers, the most disturbing finding was that the particles interfered with genetic regulation, RNA expression and inhibited the ability to differentiate into mature adipocytes or fat cells. “Reductions caused by gold nanoparticles can result in systemic changes to the body,” said Professor Mironava. “Since they have been considered inert and essentially harmless, it was assumed that pure gold nanoparticles would also be safe. Evidence to the contrary is beginning to emerge.”
…[/font][/font]
1 replies
= new reply since forum marked as read
= new reply since forum marked as read
