1.Risk factors for postoperative provisional paralysis of parasagittal meningioma in the eloquent area
Decai XU ; Jian LI ; Yongxuan ZHAO ; Jun MA ; Houyin LIU ; Hexian SU
Chinese Journal of Nervous and Mental Diseases 2016;42(8):465-468
Objective The aim of the study was to investigate the related factor of postoperative provisional paraly?sis of parasagittal meningioma in the eloquent area. Methods A retrospective review was conducted on ninety-six pa?tients with parasagittal meningioma in the eloquent area treated by surgery from May 2005 to December 2015. Accord?ing to the diagnostic criteria for postoperative provisional paralysis, patients were divided into postoperative provisional paralysis group(n=31)and non- postoperative provisional paralysis group(n=65). Univariate and multivariate logistic regression methods were used to analyze the data including age, size of tumor,preoperative epilepsy, preoperative periph?eral edema, complete the occlusion of superior sagittal sinus(SSS) by tumor, incision of SSS during surgery, drainage vein damage during surgery. Results Univariate analysis showed that there were significant differences(P<0.05)between these two groups in age(χ2=14.943,P=0.000), preoperative peripheral edema(χ2=4.435,P=0.049), the complete occlu?sion of SSS by tumor(χ2=5.248,P=0.028), incision of SSS during surgery(χ2=5.773,P=0.026), drainage vein damage during surgery(χ2=11.441,P=0.002). Multivariate analysis showed that the factors related to postoperative provisional paralysis were age(OR=8.709,P=0.028), drainage vein damage during surgery(OR=16.242,P=0.012)and complete oc?clusion of SSS by tumor(OR=0.053,P=0.025). Conclusion Age and the drainage vein damage during surgery are the risk factors of postoperative provisional paralysis and complete occlusion of SSS by tumor is the protective factor for the oc? currence of postoperative provisional paralysis.
2.Comparison of two mouse models of alcoholic liver disease induced by oral ethanol gavage or Lierber-DeCarli ethanol liquid diet
Juan XIAO ; Ruifen ZHANG ; Fei HUANG ; Lei LIU ; Yuanyuan DENG ; Yongxuan MA ; Dong LIU ; Mingwei ZHANG ; Yuanming SUN
Chinese Journal of Comparative Medicine 2016;26(6):11-17
Objective To select a simple, stable and reliable mouse model of alcoholic liver disease. Methods The mouse models of alcoholic liver disease were induced by oral gavage ethanol or Lierber?DeCarli ethanol liquid diet for 8 weeks. The food intake and body weight were recorded. Pathological changes were examined using HE staining. Liver injury was assessed by the activities of serum ALT, AST, AKP and γ?GT, and serum and hepatic TC and TG. Results After modeling, both models showed significantly increased activities of serum ALT, AST, AKP, and contents of serum and hepatic TG (P<0?05), indicating the successful development of alcoholic steatohepatitis. However, oral ethanol gavage led to body weight loss and weak mental state. Ethanol liquid diet less affected the body weight and mental state. Ethanol liquid diet enhanced liver to?body weight ratio and serum TC, but oral gavage of ethanol did not. The changes of serum ALT, AST, serum and hepatic TG, and hepatic steatosis in the ethanol liquid diet models were more severe than those in the oral gavage ethanol models, suggesting that Lierber?DeCarli ethanol liquid diet led to more serious liver injury than oral gavage ethanol. Conclusions Lierber?DeCarli ethanol liquid diet model is better than oral gavage ethanol model, and is more suitable for studies on mechanisms and evaluation of hepato?protective drugs for alcoholic liver disease.
3.Effects of compound protein powder on nitrogen metabolism and physiological and biochemical indexes in rats
Lihuang ZHONG ; Qian TAO ; Xiuying KOU ; Yongxuan MA ; Na LIAO ; Jiajia WANG ; Yuanyuan DENG ; Guang LIU
Journal of Public Health and Preventive Medicine 2023;34(5):8-13
Objective To explore the nutritional efficacy of compound protein powder formulations from different sources. Methods Three groups of compound protein powder formulations were obtained through scientific blending using soy protein, whey protein and yeast protein as raw materials. The effects of the compound protein powders on nitrogen metabolism, serum biochemical indicators, and pathological changes of liver tissue and epididymal fat in rats were evaluated. Results Compared with the control (casein), the net protein utilization, biological evaluation, and protein efficacy ratio of the compound protein powders in rats were significantly improved, and the changes in these indicators in the formula with the highest whey protein content were most significant among all three formulas. The compound protein powders effectively increased the levels of albumin and globulin, while decreased the content of total cholesterol, indicating beneficial effects on improving immunity and controlling lipid metabolism, with the formula group 2 being the most effective among all three groups. The pathological examination showed that the three groups of protein powder did not have adverse effects on liver tissue and epididymal fat. Conclusion The present study demonstrates that the compound protein powder formulation has nutritional value, which suggests a potential of the application of the compound protein powder formulation in the elderly, and people with special nutritional needs, such as sports people.