Grapes may help you prevent premature ageing

IF YOU wish to avoid looking older than your age, try relishing grapes. A new study has found this fruit could protect against skin cancer and prevent premature ageing.

The study has shown that compounds found in the fruit protect cells from the ultraviolet radiation emitted by the sun – the leading environmental cause of skin cancer, Daily Mail reported.

Ultra violet (UV) rays increase the levels of reactive oxygen species – harmful molecules which damage the cells – in the skin.

Scientists from the University of Barcelona and the Spanish National Research Council have shown that substances called flavonoids extracted from grapes can prevent these from forming in cells exposed to UV rays.

“These encouraging results should be taken into consideration… to develop new photo- protection skin products,” says Marta Cascante, a biochemist at the University of Barcelona and director of the research project.

Cascante, whose report was published in the Journal of Agricultural and Food Chemistry, added: “This study supports the idea of using these products to protect the skin from cell damage and death caused by solar radiation.” They proved that extremely high-powered electromagnetic fields (EMFs) indeed influence learning processes on the synaptic level within the brain, independent from other factors like stress.

Scientists of the Department of Neuroanatomy and Molecular Brain Research (Professor Dr. med. Rolf Dermietzel) in cooperation with the Chair of

Electromagnetic Theory of the University of Wuppertal, performed the new study on rats.

For the experiment, rats were placed into differently powered non-thermal HEFs in the UMTS (Universal Mobile Communication System) operating range. Synaptic learning and memory formation were analysed by electrophysiological methods. Furthermore, all animals were tested for stress hormone release immediately following the HEF exposure.

Although there was daily training and effortless contact to the exposure environment, increases in blood derived stress hormone levels could be detected for all exposed groups. The stress clearly influences learning and memory formation on the synaptic level in the rat brain. High powered EMFs (SAR 10 W/kg) also have a significant effect on learning and memory formation. In contrast to this, weak EMFs (SAR 0 and 2 W/kg) lead to no detectable changes or impairments.

“These results cannot directly be transferred to humans”, explained Dr. Nora Prochnow (Medical Faculty of the RUB).

“But in the animal model, it can be demonstrated that neuronal mechanisms of synaptic learning can serve as a target for high powered EMFs,” added Prochnow.

However, there is no need for serious concerns: humans are not exposed to this type of high powered EMFs during daily mobile phone use.

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