1.Effects of pneumoperitioneal on respiratory function and haemodynamic and liver function in laparoscopic hepatectomy under general anesthesia
Longbing MA ; Jianhui GAN ; Bing LI ; Jing HE ; Xinyuan WANG ; Dawei ZHANG
Chinese Journal of Postgraduates of Medicine 2007;30(z1):3-4
Objective To explore the effects of pneumoperitioneal on respiratory function and haemodynamic and liver function in laparoscopic hcpatectomy under general anesthesia. Methods changes of pneumoperitioneal on respiratory function and haemodynamic were analyzed retrospectively in 15 LH.Results SBP、DBP、HR were higher significant after C02 insufflation(P<0.05).SpO2 were lower significant after CO2 insufflation(P<0.05),there was significant difference between after 30 min after deflation and before CO2 insufflation(P>0.05);VT were lower significant after CO2 insumation(P<0.05),there was no significant difference between after 30 min after deflation and before CO2 insufflation (P>0.05);Ppeak were higher significant after CO2 insufflation(P<0.05),there was no significant difference between after 30 min afterdefiation anal before CO2 insufflation (P>0.05). Conclusion there were significant effects of pneumoperitioneal on respiratory function and haemodynamic in laparoscopic hepatectomy under general anesthesia,there weren,t significant effects of liver function.
2.Treatment of Syringomyelia Characterized by Focal Dilatation of the Central Canal Using Mesenchymal Stem Cells and Neural Stem Cells
Mo LI ; Xinyu WANG ; Boling QI ; Shengyu CUI ; Tianqi ZHENG ; Yunqian GUAN ; Longbing MA ; Sumei LIU ; Qian LI ; Zhiguo CHEN ; Fengzeng JIAN
Tissue Engineering and Regenerative Medicine 2024;21(4):625-639
BACKGROUND:
Syringomyelia is a progressive chronic disease that leads to nerve pain, sensory dissociation, and dyskinesia. Symptoms often do not improve after surgery. Stem cells have been widely explored for the treatment of nervous system diseases due to their immunoregulatory and neural replacement abilities.
METHODS:
In this study, we used a rat model of syringomyelia characterized by focal dilatation of the central canal to explore an effective transplantation scheme and evaluate the effect of mesenchymal stem cells and induced neural stem cells for the treatment of syringomyelia.
RESULTS:
The results showed that cell transplantation could not only promote syrinx shrinkage but also stimulate the proliferation of ependymal cells, and the effect of this result was related to the transplantation location. These reactions appeared only when the cells were transplanted into the cavity. Additionally, we discovered that cell transplantation transformed activated microglia into the M2 phenotype. IGF1-expressing M2 microglia may play a significant role in the repair of nerve pain.
CONCLUSION
Cell transplantation can promote cavity shrinkage and regulate the local inflammatory environment.Moreover, the proliferation of ependymal cells may indicate the activation of endogenous stem cells, which is important for the regeneration and repair of spinal cord injury.