| 摘要 |
Alzheimer's disease is characterized by the presence of senile plaques formed from beta amyloid (Abeta), and neurofibrillary tangles (NTFs) formed from paired helical filaments consisting of hyperphosphorylated tau. A number of studies have shown that the NTFs correlate better with the duration and severity of Alzheimer's disease than senile plaques. However, a criticism of the primary etiological role of NTFs in Alzheimer's disease is the absence of variants of kinases or phosphatases associated with Alzheimer's disease. Acid phosphatase, a product of the ACP1 gene, is a ubiquitous low molecular weight protein tyrosine phosphatase. A common allele, ACP1*A, is associated with a lower activity of acid phosphatase. It is due to an Arg 105 Gln substitution of the ACP1 locus and detected as a Taq I polymorphism. We report a significant association of the low activity 2 allele with sporadic early onset Alzheimer's disease (EOAD). These findings support the possibility that other variants of kinase and genes may be associated with sporadic Alzheimer's disease.
|
