Abstract
BackgroundAlzheimer disease is the most typical form of dementia. The causes of AD are not yet completely understood, but they include a combination of genetic, environmental and lifestyle factors that influence ja person's risk for developing the disease. New biomarkers related to these processes could be important for the diagnosis and follow-up of AD patients. ObjectiveThe intent of this study was to weigh the expression levels of chitinases genes in brain regions of late-onset AD (LOAD) patients. Materials and methodsWe analysed three microarray datasets obtained from the NCBI in order to verify the expression levels of chitinase genes family in brain biopsies (CR, DLPFC and VC) of LOAD patients compared to healthy subjects. We also divided the sample in function of sex difference and ages. ResultsThe analysis showed that all chitinases genes were modulated in LOAD brain regions compared to healthy subjects. Furthermore positively correlation was identified between chitinases gene expression and healthy age's subjects. Moreover, it has been shown that CHI3L1 and CHI3L2 were regulated differently in healthy and LOAD brain depending on the sex. ConclusionIt is possible to conclude that all chitinases could be considered new potential markers for LOAD disease.
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