Study: NCT05569083

Intervention type: GENETIC
Intervention: Genetic analysis of APOE and BDNF genes.
Description: The three SNPs (rs429358, rs7412 and rs6265 on APOE and BDNF genes respectively) will be analyzed by the polymerase chain reaction (PCR) on genomic DNA and with the analysis of melting curves (HRMA) using the Rotor-Gene 6,000 (Rotor-Gene, Corbett Research, Mortlake, Australia).

Intervention type: GENETIC
Intervention: Genetic analysis of APOE and BDNF genes.
Description: The three SNPs (rs429358, rs7412 and rs6265 on APOE and BDNF genes respectively) will be analyzed by the polymerase chain reaction (PCR) on genomic DNA and with the analysis of melting curves (HRMA) using the Rotor-Gene 6,000 (Rotor-Gene, Corbett Research, Mortlake, Australia).

Intervention type: DIAGNOSTIC_TEST
Intervention: EEG recording
Description: The EEG activity will be recorded continuously from 19 sites by using electrodes set in an elastic cap and positioned according to the 10-20 international system. The recording will be referenced to the common average of all electrodes, excluding Fp1 and Fp2. Re-referencing will be done prior to the EEG artifact detection and analysis. Data will be recorded with a band-pass filter of 0.3-70 Hz and digitized at a sampling rate of 512 Hz and analogue-digital precision was 16 bits (Gal-Nt, EbNeuro®, Florence, Italy). Horizontal and vertical eye movements will be detected by electrooculogram (EOG). Subjects will be sat in a reclined chair for approximately 20 min. Data will be collected at a sampling rate of 256 Hz, with a common mode rejection ratio of 105 dB (decibel), and the following band pass characteristics: 0.1 Hz high-pass filter, 100 Hz fifth order low-pass filter.

Intervention type: DIAGNOSTIC_TEST
Intervention: EEG recording
Description: The EEG activity will be recorded continuously from 19 sites by using electrodes set in an elastic cap and positioned according to the 10-20 international system. The recording will be referenced to the common average of all electrodes, excluding Fp1 and Fp2. Re-referencing will be done prior to the EEG artifact detection and analysis. Data will be recorded with a band-pass filter of 0.3-70 Hz and digitized at a sampling rate of 512 Hz and analogue-digital precision was 16 bits (Gal-Nt, EbNeuro®, Florence, Italy). Horizontal and vertical eye movements will be detected by electrooculogram (EOG). Subjects will be sat in a reclined chair for approximately 20 min. Data will be collected at a sampling rate of 256 Hz, with a common mode rejection ratio of 105 dB (decibel), and the following band pass characteristics: 0.1 Hz high-pass filter, 100 Hz fifth order low-pass filter.

Intervention type: DIAGNOSTIC_TEST
Intervention: EEG recording
Description: The EEG activity will be recorded continuously from 19 sites by using electrodes set in an elastic cap and positioned according to the 10-20 international system. The recording will be referenced to the common average of all electrodes, excluding Fp1 and Fp2. Re-referencing will be done prior to the EEG artifact detection and analysis. Data will be recorded with a band-pass filter of 0.3-70 Hz and digitized at a sampling rate of 512 Hz and analogue-digital precision was 16 bits (Gal-Nt, EbNeuro®, Florence, Italy). Horizontal and vertical eye movements will be detected by electrooculogram (EOG). Subjects will be sat in a reclined chair for approximately 20 min. Data will be collected at a sampling rate of 256 Hz, with a common mode rejection ratio of 105 dB (decibel), and the following band pass characteristics: 0.1 Hz high-pass filter, 100 Hz fifth order low-pass filter.

Intervention type: DIAGNOSTIC_TEST
Intervention: CSF collection and AD biomarker measurement
Description: The CSF samples will be collected by lumbar puncture, immediately centrifuged and stored at -80 °C until performing the analysis. Aβ42, Aβ42/Aβ40 ratio, t-tau, and p-tau will be measured using a chemiluminescent enzyme immunoassay (CLEIA) analyzer LUMIPULSE® G600 (Fujirebio, Tokyo, Japan).

Intervention type: DIAGNOSTIC_TEST
Intervention: CSF collection and AD biomarker measurement
Description: The CSF samples will be collected by lumbar puncture, immediately centrifuged and stored at -80 °C until performing the analysis. Aβ42, Aβ42/Aβ40 ratio, t-tau, and p-tau will be measured using a chemiluminescent enzyme immunoassay (CLEIA) analyzer LUMIPULSE® G600 (Fujirebio, Tokyo, Japan).

Intervention type: DIAGNOSTIC_TEST
Intervention: Neuropsychological evaluation
Description: For extensive neuropsychological evaluation the investigators will use the following tools: global measurements (MMSE, Information-Memory-Concentration Test), tasks exploring verbal and spatial short- and long-term memory (Digit Span, Corsi Tapping Test, Five Words and Paired Words Acquisition and Recall after 10 min and 24 hr, Short Story Immediate and Delayed Recall), prospective memory (Rivermead Behavioral Memory Test), attention (Trail Making Test A, Dual Task), language (Token Test, naming pictures, Category Fluency Task, Phonemic Fluency Task), constructional praxis (Copying Drawings and Rey-Osterrieth complex figure) and executive function (Trail Making Test B, Stroop Test, Frontal Assessment Battery, Weigl Test).~To assess independent living skills, the investigators will use two structured interview: Activities of Daily Living Scale (ADL) and Instrumental Activities of Daily Living Scale (IADL).