Hyperhomocysteinemia is a risk factor for Alzheimer's disease in an Algerian population.

Background And Aims: There is growing evidence that increased blood concentration of total homocysteine (tHcy) may be a risk factor for Alzheimer's disease (AD). The present study was conducted to evaluate the association of serum tHcy and other biochemical risk factors with AD.

Methods: This is a case-control study including 41 individuals diagnosed with AD and 46 nondemented controls.