‘’Investigation of the Molecular Mechanism of Endothelial Dysfunction and ADP-Induced Platelet Aggregation in Alzheimer's Disease’’


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Ayaz G., Sordu P., Alaylıoğlu M., Samancı B., Bilgiç B., Hanağası H. A., ...Daha Fazla

8th International Congress of Molecular Medicine , İstanbul, Türkiye, 9 - 12 Kasım 2021, ss.15, (Özet Bildiri)

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: İstanbul
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.15
  • İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet

Özet

Objective: It is recommended that vascular risk factors play an curicial role in the pathophysiology of Alzheimer's Disease (AD) and platelets are efficient in this process. In this study, we planned to investigate the plasma levels of Glycoprotein 1b(GP1b) proteins and von Willebrad Factor (VWF) in AD patients and healthy individuals to determine platelet aggregation and the relationship of platelets with endothelium. In order to investigate the regulation of GP-1b activation which is one of the proteins that associate between the platelet and endothelium, at the molecular level, we detected mir26a-5p, which we think may be effective in this pathway, and the von Willebrand Factor at the molecular level, by detecting mir24-3p levels with qRT-PCR, and determining their relationship with the disease, intended to be determined. Materials-Methods: 23 patients and 35 controls were included in the study. Plasma GP1b and vWF levels were determined by ELISA. Platelet functions were studied with a lumiagregometer device by giving ADP stimulus. miR26a-5p and miR24-3p levels were determined by qRT-PCR. Results: In our study, platelet aggregation % amplitude value (p=0.028) and GP1b levels (p=0.107) were found to be higher in the patient group than controls. MMSE(p=0.001) and hsa-mir26-5p (p=0.043) were found to be lower in the patient group than controls. Conclusion: High platelet aggregation % amplitude value in the patient group indicates an increase in platelet functions. Low levels of hsa-mir26-5p expression may be associated with increased GP1b levels in the Alzheimer’s Disease. Keywords: Alzheimer's Disease, ADP, Platelet Aggregation, GP1b, miR26-5p