Mild Cognitive Impairment Clinical Trial
Official title:
Screen and Verification of Biomarkers for Early Detection of Alzheimer's Disease
Blood will be harvested from three groups of people, normal control, patients with mild cognitive impairment (MCI) and patients with Alzheimer's disease (AD), 20 people per group. The blood samples will be used to determine the difference in the expression of microRNAs and proteins. Blood samples will be harvested again at 6-month interval from patients. The combination of the microRNAs and proteins that have different expression patterns between normal control and patients with MCI will be constructed in a kit to detect the difference. This kit will be used in another set of the three groups of people to determine its sensitivity and specificity in detecting patients with MCI.
As discussed above, patients' blood samples will be tested by chip to test microRNA expression and liquid chromatography-mass spectrometry to determine protein expression. The differences in microRNA and protein expression among the three groups, especially between the control and MCI, will be analyzed. This information will be used to construct a kit that can contain probes to detect a few microRNAs or proteins. This kit will be used in another set of patients to check its sensitivity and specificity. The first set of patients will also be followed up every 6 months for up to 1.5 years. Blood samples will be harvested during the follow-ups. The changes in microRNAs and proteins will be correlated with the changes of cognition. This information will be used for constructing the kit as well. ;
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