| Autor: |
Rishabh Singh, Sanskriti Rai, Prahalad Singh Bharti, Sadaqa Zehra, Priya Kumari Gorai, Gyan Prakash Modi, Neerja Rani, Kapil Dev, Krishna Kishore Inampudi, Vishnu V. Y., Prasun Chatterjee, Fredrik Nikolajeff, Saroj Kumar |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
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| Zdroj: |
BMC Medicine, Vol 22, Iss 1, Pp 1-16 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1741-7015 |
| DOI: |
10.1186/s12916-024-03475-z |
| Popis: |
Abstract Background Alzheimer’s disease (AD) is a neurodegenerative disease characterized by Aβ plaques and neurofibrillary tangles. Chronic inflammation and synaptic dysfunction lead to disease progression and cognitive decline. Small extracellular vesicles (sEVs) are implicated in AD progression by facilitating the spread of pathological proteins and inflammatory cytokines. This study investigates synaptic dysfunction and neuroinflammation protein markers in plasma-derived sEVs (PsEVs), their association with Amyloid-β and tau pathologies, and their correlation with AD progression. Methods A total of 90 [AD = 35, mild cognitive impairment (MCI) = 25, and healthy age-matched controls (AMC) = 30] participants were recruited. PsEVs were isolated using a chemical precipitation method, and their morphology was characterized by transmission electron microscopy. Using nanoparticle tracking analysis, the size and concentration of PsEVs were determined. Antibody-based validation of PsEVs was done using CD63, CD81, TSG101, and L1CAM antibodies. Synaptic dysfunction and neuroinflammation were evaluated with synaptophysin, TNF-α, IL-1β, and GFAP antibodies. AD-specific markers, amyloid-β (1–42), and p-Tau were examined within PsEVs using Western blot and ELISA. Results Our findings reveal higher concentrations of PsEVs in AD and MCI compared to AMC (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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