1.Butylphthalide in the protection of focal cerebral ischemia-reperfusion in rats by enhancing the antioxidant activity
Jianghong LIANG ; Luyun WEI ; Xiaochun TANG
International Journal of Cerebrovascular Diseases 2013;(3):186-190
Objective To investigate the protective effect of butylphthalide for focal cerebral ischemiareperfusion injury and its possible mechanism.Methods A total of 60 healthy and clean adult Sprague-Dawley rats were randomly divided into sham operation,saline control,low-dose butylphthalide and high-dose butylphthalide groups (n =15 in each group).A focal cerebral ischemia-reperfusion model was induced by the suture method.At the beginning of reperfusion,100 rng/kg and 400 mg/kg butylphthalide injection were injected intraperitoneally in the rats of the low-dose butylphthalide and high-dose butylphthalide groups; 0.5 ml/kg saline was injected intraperitoneally in rats of the sham operation and saline control groups.All the rats were sacrificed after 24 h of ischemia-reperfusion.Results The degree of neurological deficit in the low-dose butylphthalide (t =1.488,P =0.000) and high-dose butylphthalide (t =2.362,P =0.000) groups were significantly improved compared to the saline control group,in which the high-dose butylphthalide group was improved more significantly than the low-dose butylphthalide group (t =-0.873,P =0.000).The infarct volume in the low-dose butylphthalide (t =18.589,P =0.000) and high-dose butylphthalide (t =36.963,P =0.000) groups were reduced significantly compared to the saline control group,in which the infarct volume of the high-dose butylphthalide group was reduce more significantly than that of the low-dose butylphthalide group (t =-18.374,P =0.000).HE staining showed that neurons were sparse,there were a large number of degeneration and necrosis,cell space became larger,and the intercellular substances showed vacuolar changes.In the butylphthalide group,the neuronal degeneration and necrosis reduced significantly,the survival of nerve cells increased,and the improvement of the high-dose butylphthalide group was more remarkable.SOD activity of the low-dose and high-dose butylphthalide groups were increased significantly compared to the sham operation and saline control groups (all P <0.05),in which the SOD activity in the high-dose butylphthalide group was significantly higher than that in the low-mall dose butylphthalide group (t =80.199,P =0.000); The MDA levels in the low-dose and high-dose butylphthalide groups were decreased significantly compared to the sham operation and saline control groups (all P < 0.05),in which the MDA level in the high-dose butylphthalide group was significantly lower than that in the low-dose butylphthalide group (t =-1.308,P=0.000).Conclusions The protective effect of butylphthalide on ischemia-reperfusion injury may be associated with the increased antioxidant activity.
2.The Effect of Down Regulation of Fast Glucose Damge Standard on Endothelial Function
Guangyu WANG ; Luyun ZHU ; Wei SHAN ; Xiaoling LI
Journal of Medical Research 2006;0(04):-
Objective To approach the effect of down regulation of fast glucose damge standard on endothelial funtion. Methods The FBS 、serum lipid、 uric acid of 54101 normal subjects were detected, those subjects were divided by FBG value into four groups: A B C D ,the value of TC、 TG、 uric acid in group B were higher than which in group A, lower than in group C. The value of PBG、FINS、PINS、ET、NO of 655 subjects choiced randomly were detected .At the same time the endodermis dependence angiectasia funtion mediated by bloodstream and the no-endodermis dependence angiectasia funtion mediated by glycerol trinitrate were detected . Results The value of group B was lower than which in group A, having no statistical meanings compared with group C、D;the no-endodermis dependence angiectasia funtion mediated by glycerol trinitrate of group B was higher than that of group C, that of group C was lower than group A, the comparison of other two groups has no statistical meanings. Conclusions Down regulation of fast glucose damge standard can effect on the endothelial funtion.
3.Development and progress of the insulin pump
Weijun YI ; Luyun ZHU ; Yunzhang LUO ; Jianfeng LU ; Wei YU ; Fengtao JIA
Chinese Medical Equipment Journal 2004;0(07):-
Insulin pumps go by the name of the second revolution of treatment for diabetes. The result of DCCT publicized in 1993, insulin pumps have been popularized in the world, including China. This article introduces such about insulin pumps as its history, actuality, development trend, advantages and disadvantages.
4.Organ function support in patients with coronavirus disease 2019: Tongji experience.
Yong LI ; Fan HE ; Ning ZHOU ; Jia WEI ; Zeyang DING ; Luyun WANG ; Peng CHEN ; Shuiming GUO ; Binhao ZHANG ; Xiaoning WAN ; Wei ZHU
Frontiers of Medicine 2020;14(2):232-248
Coronavirus disease 2019 (COVID-19) is a highly contagious disease and a serious threat to human health. COVID-19 can cause multiple organ dysfunction, such as respiratory and circulatory failure, liver and kidney injury, disseminated intravascular coagulation, and thromboembolism, and even death. The World Health Organization reports that the mortality rate of severe-type COVID-19 is over 50%. Currently, the number of severe cases worldwide has increased rapidly, but the experience in the treatment of infected patients is still limited. Given the lack of specific antiviral drugs, multi-organ function support treatment is important for patients with COVID-19. To improve the cure rate and reduce the mortality of patients with severe- and critical-type COVID-19, this paper summarizes the experience of organ function support in patients with severe- and critical-type COVID-19 in Optical Valley Branch of Tongji Hospital, Wuhan, China. This paper systematically summarizes the procedures of functional support therapies for multiple organs and systems, including respiratory, circulatory, renal, hepatic, and hematological systems, among patients with severe- and critical-type COVID-19. This paper provides a clinical reference and a new strategy for the optimal treatment of COVID-19 worldwide.
Antiviral Agents
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therapeutic use
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Betacoronavirus
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Coronavirus Infections
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drug therapy
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therapy
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Humans
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Oxygen Inhalation Therapy
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Pandemics
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Pneumonia, Viral
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therapy
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Respiration