Insights from a 7-Year Dementia Cohort (VALCODIS): ApoE Genotype Evaluation

Area of Science:

• Neuroscience
• Biomarkers
• Genetics

Background:

• The Valencian Cognitive Diseases Study (VALCODIS) cohort was established at Hospital Universitari i Politècnic La Fe for cognitive disease research.
• Focus on identifying novel biomarkers for Alzheimer's disease (AD).

Purpose of the Study:

• To analyze the VALCODIS cohort data for Alzheimer's disease research.
• Investigate the relationship between ApoE genotype, cerebrospinal fluid (CSF) biomarkers, and neuropsychological tests.

Main Methods:

• Analysis of cerebrospinal fluid (CSF) and blood samples, neuroimaging, and neuropsychological tests from 1249 participants.
• Evaluation of ApoE genotype in relation to AD and non-AD patients.

Main Results:

• Significant differences in Aβ42 levels were observed across ApoE genotypes in both AD and non-AD patients.
• Negative correlations found between tau levels and cognitive test performance in non-carriers and ε4 heterozygous individuals.

Conclusions:

• The VALCODIS cohort provides a rich dataset for studying early AD diagnosis.
• ApoE genotype is associated with CSF biomarkers and cognitive performance, offering insights into AD pathogenesis.