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Artificial light behind the spread of breast cancer
Scientists confirmed that the artificial light is one of the reasons behind the high incidence of breast cancer in women. The researchers said that women who work in the following time are more prone to breast cancer than others, despite the absence of a clear evidence in this area.
However, experiments conducted on mice confirmed that the long-term exposure to artificial light - through the night and day alike - may cause cancer.
The magazine reported, "her" of London, the study showed that exposure to artificial light for the night without the presence of natural light at all to stimulate the growth of tumors in the breast through the suppression of basic levels of the hormone melatonin. Also found that extended periods of darkness during the night, slow down the growth of these tumors.
This explains the dramatic rise in breast cancer in industrialized countries, where the risk of breast cancer five times more than in developing countries. These results suggest that the increasing nighttime use of electric lighting, whether at home or in the workplace, it may be an important factor behind breast cancer.
Valdu artificial suppresses production of melatonin in the brain, note that melatonin is a hormone that helps regulate sleep cycles and wake up at the person.
And it is known that many tumors depend for growth on nutrient called linoleic acid, an essential fatty acid. However, melatonin inhibits the ability of the tumor to use linoleic acid as a sign of growth.
And scientists to these conclusions after the injection of cells from human breast cancer in mice. Was then pumped blood samples from women who enjoy good health in the developing tumors. The specimens were taken from women in three different conditions: during the day, during the night after two hours of complete darkness, and during the night after exposure for 90 minutes of bright artificial light.
Found to be rich blood Balmilatonin taken from women who were in complete darkness is very slower growth of tumors. The blood taken from women exposed to artificial light on melatonin Vahtoy damaged and stimulate tumor growth. Thus, the researchers stressed that melatonin affects strongly the internal clock of the body that regulate sleep-wake cycle and body temperature.
Increasing evidence that disrupting the biological clock of the person associated with cancer, as they can for this disorder that stimulates the growth of tumors.
Scientists confirmed that the artificial light is one of the reasons behind the high incidence of breast cancer in women. The researchers said that women who work in the following time are more prone to breast cancer than others, despite the absence of a clear evidence in this area.
However, experiments conducted on mice confirmed that the long-term exposure to artificial light - through the night and day alike - may cause cancer.
The magazine reported, "her" of London, the study showed that exposure to artificial light for the night without the presence of natural light at all to stimulate the growth of tumors in the breast through the suppression of basic levels of the hormone melatonin. Also found that extended periods of darkness during the night, slow down the growth of these tumors.
This explains the dramatic rise in breast cancer in industrialized countries, where the risk of breast cancer five times more than in developing countries. These results suggest that the increasing nighttime use of electric lighting, whether at home or in the workplace, it may be an important factor behind breast cancer.
Valdu artificial suppresses production of melatonin in the brain, note that melatonin is a hormone that helps regulate sleep cycles and wake up at the person.
And it is known that many tumors depend for growth on nutrient called linoleic acid, an essential fatty acid. However, melatonin inhibits the ability of the tumor to use linoleic acid as a sign of growth.
And scientists to these conclusions after the injection of cells from human breast cancer in mice. Was then pumped blood samples from women who enjoy good health in the developing tumors. The specimens were taken from women in three different conditions: during the day, during the night after two hours of complete darkness, and during the night after exposure for 90 minutes of bright artificial light.
Found to be rich blood Balmilatonin taken from women who were in complete darkness is very slower growth of tumors. The blood taken from women exposed to artificial light on melatonin Vahtoy damaged and stimulate tumor growth. Thus, the researchers stressed that melatonin affects strongly the internal clock of the body that regulate sleep-wake cycle and body temperature.
Increasing evidence that disrupting the biological clock of the person associated with cancer, as they can for this disorder that stimulates the growth of tumors.
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