Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Mobile phones affect memory in laboratory animals

05.12.2008
Can radiation from cell phones affect the memory?

Yes, at least it does so in rat experiments at the Division of Neurosurgery, Lund University, in Sweden. Henrietta Nittby studied rats that were exposed to mobile phone radiation for two hours a week for more than a year. These rats had poorer results on a memory test than rats that had not been exposed to radiation.

The memory test consisted of releasing the rats in a box with four objects mounted in it. These objects were different on the two occasions, and the placement of the objects was different from one time to the other.

The actual test trial was the third occasion. This time the rats encountered two of the objects from the first and two of the objects from the second occasion. The control rats spent more time exploring the objects from the first occasion, which were more interesting since the rats had not seen them for some time. The experiment rats, on the other hand, evinced less pronounced differences in interest.

Henrietta Nittby and her, supervisor Professor Leif Salford, believe that the findings may be related to the team's earlier findings, that is, that microwave radiation from cell phones can affect the so-called blood-brain barrier. This is a barrier that protects the brain by preventing substances circulating in the blood from penetrating into the brain tissue and damaging nerve cells. Leif Salford and his associates have previously found that albumin, a protein that functions as a transport molecule in the blood, leaks into brain tissue when laboratory animals are exposed to mobile phone radiation.

The research team also found certain nerve damage in the form of damaged nerve cells in the cerebral cortex and in the hippocampus, the memory center of the brain. Albumin leakage occurs directly after radiation, while the nerve damage occurs only later, after four to eight weeks. Moreover, they have discovered alterations in the activity of a large number of genes, not in individual genes but in groups that are functionally related.

"We now see that things happen to the brains of lab animals after cell phone radiation. The next step is to try to understand why this happens," says Henrietta Nittby. She has a cell phone herself, but never holds it to her ear, using hands-free equipment instead.

Henrietta Nittby can be reached at phone: +46 (0)46-173922 or cell phone: +46 (0)70-57 92 731; e-mail Henrietta.Nittby@med.lu.se

Pressofficer Ingela Björck; ingela.bjorck@info.lu.se,+46-46 222 7646

Ingela Björck | idw
Further information:
http://www.vr.se

More articles from Health and Medicine:

nachricht Satellites, airport visibility readings shed light on troops' exposure to air pollution
09.12.2016 | Veterans Affairs Research Communications

nachricht Oxygen can wake up dormant bacteria for antibiotic attacks
08.12.2016 | Penn State

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>