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Visually Impaired Individuals at Significant Greater Risk of Diminished Balance
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UC Davis Health System Eye Center research has found that visually impaired individuals and those those who could benefit from glasses to achieve normal vision but donÛªt wear glasses ÛÓ have a significantly greater risk of diminished balance than individuals with normal vision.
The research suggests that vision may play an important role in calibrating the vestibular system, which includes the bones and soft tissue of the inner ear, to help optimize physical balance.
According to the Centers for Disease Control and Prevention, falls among older adults alone cost the U.S. health care system over $30 billion in 2010. One in three adults age 65 and older falls each year, and of those who fall, 20 percent to 30 percent suffer moderate to severe injuries that make it hard for them to get around or live independently, and increase their risk of early death.
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Fish Oil May Help Boost Immunity
Fish oil may help boost immunity in some people with certain health conditions like rheumatoid arthritis, celiac disease and other autoimmune disorders in which the immune system attacks the bodyÛªs healthy cells, according to a new study published in the Journal of Leukocyte Biology.åÊ
The findings suggest that instead of suppressing the bodyÛªs immune response, fish oil actually enhances the function of B cellsÛÓwhite blood cells that enforce nonspecific and specific immunity.
Inflammation is a sign of increased immune system activity so itÛªs widely thought that if fish oil fights inflammation, it also may influence overall immune function.åÊ
Researchers at Michigan State UniversityÛªs department of food science and human nutrition examined that influence by studying how the B cells of mice respond to fish oil. B cells are white blood cells that produce antibodies and call other immune cells to join the fight when infections occur.
For five weeks, one group of mice was fed a regular diet while the others had a diet supplemented with fish oil rich in the fatty acid docosahexaenoic acids (DHA). The researchers found that mice in the fish oil group had B cells that produced more antibodies and more of the chemicals that alert other cells to threats.
ÛÏOur data showed that the B cells not only werenÛªt suppressedÛÓwhich would be the dogmaÛÓbut that fish oil even enhanced their function,” said lead researcher Jenifer Fenton. While more research is needed before the mouse studyÛªs implications for humans become clear, she said boosting B-cell activity may be good for some people. ÛÏFor example, the complication and mortality rate from influenza is higher among obese individuals, so that could be a situation where enhancing B-cell function could be useful.”
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