Link between sunlight and multiple sclerosis

by Symptom Advice on November 18, 2011

For almost 30 years, scientists have known that multiple sclerosis is more ordinary in higher latitudes than in the tropics. As sunlight is more abundant near the equator, many scientists have wondered if the high levels of vitamin D engendered by sunlight could put in plain words unusual pattern of frequency.Vitamin D may reduce the symptoms of multiple sclerosis, but in a recent study scientists have declared that the ultraviolet part of sunlight may play a bigger function than vitamin D in controlling MS.Multiple sclerosis is a sore neurological illness caused by deterioration in the nerve’s electrical conduction; approximately 400,000 people have the disabling condition in the United States. in recent years, it’s become clear the immunity systems of patients are destroying the electrical insulation on the nerve fibers.The ultraviolet portion of sunlight stimulates the body to produce vitamin D, and both vitamin D and the ultraviolet are able to control the immune system and possibly slow MS.

A mice was used in an experiment, because they are genetically susceptible to MS-like disease, the examiners triggered the disease by injecting a protein from nerve fibers. The researchers then exposed the mice to moderate levels of the ultraviolet radiation for almost a week. After they initiated disease by injecting the protein, they irradiated the mice every second or third day.The ultraviolet contact (equivalent to two hours of direct summer sun) did not change how many mice got the MS-like disease, but it did decrease the symptoms of MS, especially in the animals that were treated with the ultraviolet every other day.

The research group also found that although the ultraviolet contact did increase the level of vitamin D, that consequence, by itself, could not explain the reduced MS symptoms.

MS is a progressive neurological illness with a few effective treatments, but scientists declared that the study, however hopeful, may or may not lead to a new mode of cure. Also, scientists have mentioned that there are several ways that could go. if they could find out what the ultraviolet is producing, maybe they could give that as a medicine. in the short term, if they can define a specific wavelength of light that is active, and it does not overlap with the wavelengths that cause cancer, they could expose patients who have been diagnosed with MS to that wavelength.

However, this is just experimental study at this stage. Whether it can be translated into practical applications on MS remains to be seen.

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