Washington: People who have suffereda stroke and who regularly take vitamins are less likely todevelop depression, a new study has found. An international team, led by University of WesternAustralia, has said this was the first time researchers hadbeen able to demonstrate unequivocally that they could reducethe risk of clinically significant depressive symptoms after astroke.
Professor Almeida said previous research had foundthat B-vitamins could alter the concentration of homocysteine,an amino acid. High concentrations of this amino acid hadbeen linked to depression. But he cautioned people with pre existingcardiovascular disease against taking high dosages ofB-vitamins. "Taking high doses of B-vitamins has not beenadequately studied and may not result in a protective effect. In fact, there is some evidence that the use of these vitaminsmay cause cardiovascular problems in some circumstances. "So people who are considering using these vitaminsshould discuss these issues with their doctor. The protectiveeffect of these vitamins only became apparent after about sixyears of regular treatment. "We suspect that this may be due to a slow and gradualchange in the vascular system, but further research is requirebefore we can be absolutely sure. At this stage, we cannotextrapolate these benefits to non-stroke survivors," ProfessorAlmeida said. The research was part of a major 12-yearstudy that looked at the effects of B vitamins in preventingfurther strokes in stroke survivors, the findings of which arepublished in the `Annals of Neurology` journal. PTI
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