Better neuroprotective profile of caffeic acid phenyl ester over resveratrol in non-traumatic ischemia-reperfusion injury of the spinal cord

Author(s):  
Esra Aslan ◽  
Mehmet Gazi Boyacı ◽  
Hilal Güzel ◽  
Mehmet Bilgehan Pektaş
2018 ◽  
Author(s):  
Arif Aslaner ◽  
Tugrul Cakir

PURPOSE: Caffeic acid phenyl ester (CAPE), which is an active component of propolis, has antioxidant, antiproliferative, immunomodulatory and anti-inflammatory properties and has been used for many years. The protective effect against ischemic reperfusion injury in the cholestatic liver is unknown and it is aimed to determine its effect in this study. MATERIALS AND METHODS: Three groups of 18 Wistar albino rats were divided into cholestasis, control and study groups with bile duct attachment. Intraperitoneal administration of caffeic acid phenyl ester at the dose of 30 mg/kg/ day started 15 days ago and continued until the second operation in the study group. On the seventh day, hepatic ischemia was performed for 30 minutes followed by reperfusion for 60 minutes. Serum, plasma and liver samples were taken. Laboratory analysis, tissue glutathione, malondialdehyde, and myeloperoxidase levels were evaluated. RESULTS: Significant reduction in the level of liver glutathione and a marked increase in malondialdehyde level and myeloperoxidase activity were observed in the cholestatic I / R group. After treatment, all parameters except serum bilirubin levels were reversed. CONCLUSIONS: Intraperitoneal administration of CAPE may improve liver function and may reduce inflammation and oxidative stress in cholestatic I / R injury.


2021 ◽  
Author(s):  
Cheng Wu ◽  
Qinghua Zhu ◽  
Yi Yao ◽  
Zhaoyang Shi ◽  
Chaojie Jin ◽  
...  

Background: Spinal cord ischemia/reperfusion injury (SCIRI) is usually caused by spinal surgery or aortic aneurysm surgery and can eventually lead to paralysis or paraplegia and neurological dysfunction. Exosomes are considered as one of the most promising therapeutic strategies for SCIRI as they can pass the blood-spinal barrier. Previous studies have proved that exosomes secreted by osteocytes have a certain slowing effect on SCIRI. Aim: We aimed to explore the effect of osteoblast secreted exosomes on SCIRI. Methods: Firstly, neurons and osteoblasts were co-cultured under different conditions. GEO database was utilized to detect the expression of miR-23a-3p in osteoblast exosomes. SCIRI cells were treated with exosomes, and the detection was taken to prove whether miR-23a-3p could slow the progression of SCIRI. Downstream gene and the potential regulatory mechanism were explored through database and functional experiments. Results: MiR-23a-3p was highly expressed in exosomes and it slowed down the process of SCIRI. Downstream mRNA KLF3 could bind to miR-23a-3p and was highly expressed in IRI. Moreover, CCNL2 was regulated by KLF3 and was highly expressed in IRI. Rescue experiments verified that miR-23a-3p suppressed the transcription of CCNL2 by targeting KLF3. Conclusion: Exosome miR-23a-3p from osteoblast alleviates SCIRI by down-regulating KLF3-activated CCNL2 transcription.


Sign in / Sign up

Export Citation Format

Share Document