Journal
NEUROSCIENCE LETTERS
Volume 367, Issue 3, Pages 336-339Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2004.06.027
Keywords
Alzheimer's disease; Parkinson's disease; matrix metalloproteinase; genotype; polymerase chain reaction; polymorphism
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Polymorphisms affecting the expression of matrix metalloproteinases (MMPs), i.e. proteolytic enzymes that degrade intercellular material, have been found at position -1607 (1G/2G) in MMP1 and at -1171 (5A/6A) in MMP3. Interestingly, elevated levels of MMP1 and MMP3 have been observed in the brains of Alzheimer's disease (AD) patients and those of tissue inhibitors of MMPs in the cerebrospinal fluid of AD and Parkinson's disease (PD) patients, suggesting a role for NIMPs in these disorders. The aim was to investigate a possible association between the afore-mentioned MMP1 and MMP3 polymorphisms and the risk of developing AD or PD. The polymorphisms were genotyped in 97 AD, 52 PD and 101 control patients. We found an interaction between MMP3*5A and APOE epsilon4 alleles (P < 0.0001) which increases the risk of AD (OR: 23.7, 95% CI: 5.8-144.9, P < 0.0001) compared to those who possess neither MMP3*5A nor APOE epsilon4. In conclusion, our finding suggests that the MMP3 gene, especially together with APOE epsilon4, may contribute to the development of AD. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
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