Frequent use of mobile phones can cause cancer?

(Scientists have long been concerned about the harmful effects that may occur due to frequent use of mobile phones, but studies so far are largely unconvincing.

Currently, radio frequency electromagnetic fields, such as electromagnetic fields generated from mobile phones, have been classified as possibly carcinogenic to humans (Group B2) by the Research Agency. International cancer (IARC - international Agency for Research on Cancer). However, a new study by Tel Aviv University probably brings bad news.

To further explore the relationship between cancer rates and mobile phone use, Dr. Yaniv Hamzany of Tel Avi University has tracked traces in the saliva of mobile phone users. From the moment mobile phones are placed close to the salivary glands during use, he and his colleagues, including professors Raphael Feinmesser, Thomas Shpitzer and Dr. Gideon Bahar, Professor Rafi Nagler and Dr. Moshe Gavish of The Technion Institute in Haifa hypothesized that saliva may reveal whether there is a link to the likelihood of cancer developing.

Compared to many mobile phone users with non-users, they found that saliva of many users showed signs of higher oxidative stress - oxidative stress was a threatening process for all. The composition of a human cell, which includes DNA - through the development of free radicals and toxic peroxide. More importantly, this is considered a major risk factor for cancer.

The results of the study have been reported in Antioxidants and Redox Signaling.

Causes stress for tissues and glands

In this study, the researchers examined the saliva composition of 20 users at a high level, defined as those who use the phone to talk for at least 8 hours / month. Most participants use more phones, Dr Hamzany said, about 30 to 40 hours / month. Their saliva composition is compared to that of a control group, including deaf or non-mobile users, or using devices dedicated to text messaging (text). and other non-verbal functions.

Compared to the control group, many mobile phone users had a significant increase in oxidative stress in saliva.

'This suggests significant oxidative stress on tissues and glands located near the phone when used , ' he said. The risk of oxidative stress is linked to gene mutations that cause tumor growth.

This area of ​​research reflects the long-term impact of mobile phone use, especially the effect of non-ionizing electromagnetic radiation on the tissue near the ear, researchers. Help me. And although the results of this study do not detect a causal relationship between mobile phone use and cancer, they add evidence that mobile phone use could be harmful. long-term, and show a direction for further research.

A potential path of future research may be to analyze a person's saliva before contact with a mobile phone, and then sample saliva after several minutes of contact stress. This will allow researchers to see if there is an immediate reaction, such as an increase in molecular malaria leading to oxidative stress, Dr. Hamzany said.

When Superoxide (O ₂ - ion) is produced too much, it leads to Superoxide overload and called "Oxidative Stress" . Oxidative stress alters DNA of cell nucleus, oxidation of Lipids and Cholesterol, changes in structure of some proteins, and activates blood-binding cells, cell adhesion molecules and monocyte attractive molecules (ICAM-1, VCAM-1, MCP-1), increases inflammation. Changes in hyperoxide increase due to high blood pressure lead to atherosclerotic plaque formation.

Oxidative Stress is the result of an imbalance between free radicals and antioxidants that make antioxidants disabled. According to doctors this may lead to abnormal cell growth, a warning sign of cancer.