Sentences with phrase «elevated plasma homocysteine levels»

Low serum levels of certain B vitamins (folate and vitamins B12 and B6) have been associated with elevated plasma homocysteine levels in several studies and with an increased risk of dementia in a few investigations.38 - 42 In our study, the observed association between plasma homocysteine and risk of dementia was not significantly altered by adjustment for the plasma levels of these vitamins (Table 3).