Blood cells constitute a minimally invasive material, which is presented as potentially suitable for addressing the identification of clinical diagnostic biomarkers. This study will compare gene expression in blood cells of patients with various degrees of cognitive alteration (mild cognitive impairment due to Alzheimer's disease and dementia due to Alzheimer's Disease) compared to control individuals, to identify early biomarkers of impaired cognition. The availability of non-invasive early biomarkers of cognitive dysfunction is highly relevant in the field of public health, from the point of view of being able to prevent or delay the onset and/or progression of dementia and other cognitive disorders. In addition, it is intended to establish the association between the biomarkers identified with nutritional imbalances and increased adiposity/obesity.
The aim of this study is to identify transcriptomic biomarkers in blood cells to diagnose early cognitive impairment. This would allow preventing the development of severe pathologies, such as Alzheimer Disease. In addition, this project will analyse the influence of adiposity, obesity, nutritional habits and physical activity on cognition.