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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Cobalamin, folate, methylmalonic acid, homocysteine, and gastritis markers in dementia.

The prevalence of dementia disorders, cobalamin and/or folate deficiency as well as gastritis increases with age. To investigate whether there is an association between these conditions, plasma homocysteine (Hcy), serum methylmalonic acid, serum cobalamin and blood folate concentrations were measured. Gastritis was indirectly diagnosed by measuring serum antibodies against H,K-ATPase, HELICOBACTER PYLORI and intrinsic factor, using enzyme-linked immunosorbent assays. The studied groups consisted of 47 patients with Alzheimer's disease (AD), 9 with AD pathology in combination with additive vascular lesions, 59 with vascular dementia, 8 who were cognitively impaired, and 101 control cases. Plasma Hcy concentrations were significantly elevated in the dementia groups, with the highest levels in patients with vascular pathology. We conclude that hyperhomocysteinemia is a common finding in patients with dementia disorders of different etiologies. The markers for gastritis did not contribute to an elucidation of a possible connection between this condition, dementia disorders, or cobalamin/folate deficiency.[1]


  1. Cobalamin, folate, methylmalonic acid, homocysteine, and gastritis markers in dementia. Nägga, K., Rajani, R., Mårdh, E., Borch, K., Mårdh, S., Marcusson, J. Dementia and geriatric cognitive disorders. (2003) [Pubmed]
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