1.Synergistic and Attenuated Effects of Traditional Chinese Medicines on Doxorubicin Chemotherapy
Zongchun YANG ; Meng QIAN ; Ming XIE
China Pharmacist 2017;20(8):1382-1386
Doxorubicin as a member of the anthracycline-based drugs, is widely used in cancer chemotherapy, while its significant cardiac toxicity and cytotoxicity limit its application to some extent.Therefore, it's a valuable exploring topic on how to improve the effect and reduce the adverse drug reactions of doxorubicin chemotherapy.This paper attempted to analyze the literatures about TCM combined with doxorubicin in nearly 15 years, including clinical use and experimental studies, to provide reference for the clinical application.
2.Influence of astragalus membranaceous in inhibiting the activity of nitric oxide synthase after acute brain injury
Zongchun TANG ; Ying GAO ; Shuande LI ; Ximin YANG
Chinese Journal of Tissue Engineering Research 2005;9(21):248-249
BACKGROUND: Astragalus membranaceus plays an important role in the adjustment of immunological function. Whether does it have protective effect on neuron in the intervention of acute craniocerebral injury and what is the pathway in effect?OBJECTIVE: To observe the effect of astragalus membranaceus on activity of nitric oxide synthetase after brain injury.DEDIGN: Randomized controlled trial.SETTING: Neurosurgery institute of Lanzhou Military Area Command of Chinese PLA.MATERIALS: This experiment was completed in the Laboratory of Neurosurgery Institute of Lanzhou Military Area Command of Chinese PLA. Fifty-four healthy SD rats were divided randomly into 3 groups: brain injury group( n=24), astragalus membranaceus group( n = 24) and control group( n = 6). Injury and astragalus membranaceus groups were sampled at 4different time points(0.5 hour, 2 hours, 6 hours, and 24 hours) after injury,6 rats were sacrificed at each time point.METHODS: The brain injury and astragalus membranaceus groups were prepared by improved Feeney' s free falling method. Bone windows were opened for the control group, but no brain injury produced. After injury, rats in astragalus membranaceus group were immediately injected 200 mg/kg astragalus membranaceus intraperitoneally rat cerebral injury models were established and the nitric oxide synthetase concentration was tested at different time points.MAIN OUTCOME MEASURES: Activity of nitric oxide synthetase in the brain tissue of rats in each group.RESULTS: All 54 rats entered the final analysis. Nitric oxide synthetase activity in brain injury and astragalus membranaceus groups increased sharply contrasting with control group at 30 minute after injury [ (46.44 ± 13.45),(43.15 ± 12.43), (40. 46 ± 12. 85) nkat/L, P <0.05], reaching the peak at 2hours[ (67.49 ± 22.45), (64. 26 ± 19.78) nkat/L, P < 0.01 ], starting to drop from6 hours [(63.46±24. 68), (52.91 ±21.36) nkat/L, P <0. 01], and getting to basic level at 24 hours[ (41.23 ± 12. 57), (40.92 ± 12. 25) nkat/L,P > 0.05 ]. In the astragalus membranaceus treated group, nitric oxide synthetase activity dropped at 2 hours and 6 hours after injury contrasting with injury group( P < 0. 05, P < 0. 01 respectively).CONCLUSION: Nitric oxide synthetase activity increases in the injured brain tissue and astragalus membranaceus can protect injured neuron by inhibiting nitric oxide synthetase activity.
3.Effects of astragalus mongholicus injection(黄芪注射液)on concentrations of neuron-specific enolase,myelin basic protein and S100 protein B in cases with acute severe craniocerebral injury
Yingguo LI ; Ximin YANG ; Zongchun TANG ; Xiaofeng WANG
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2006;0(06):-
Objective: To investigate the effects of complex prescription astragalus mongholicus injection(复方黄芪注射液) on the serum concentrations of neuron-specific enolase(NSE),myelin basic protein(MBP) and S100 protein B(S100B) in cases with acute severe craniocerebral injury.Methods: One hundred and ninety-six patients with acute severe craniocerebral injury were randomly divided into two groups.The treated group was treated with complex prescription astragalus mongholicus injection plus conventional treatments including dehydration,antibiotics,organ functional support,nerve nutrition,prevention of complication,etc;the control group was treated with conventional treatments alone.The concentrations of NSE,MBP and S100B in plasma at admission and at 4,7 and 10 days after treatment were determined;the Glasgow coma score(GCS) at admission and at 1 week and 2 weeks after hospitalization and the Glasgow outcome scale(GOS) after 3 months were compared to observe the long-term efficacy in the patients.Results: After treatment,the concentrations of serum NSE,MBP and S100B in the treatment group were all lower than those in the control group,the differences being significant(NSE(14.62?3.38)?g/L vs.(21.54?5.68) ?g/L,MBP(7.52?1.06) mg/L vs.(10.21?2.01) mg/L,S100B(0.90?0.28) ?g/L vs.(1.20?0.34) ?g/L,all P0.05);the GCSs of the patients at 1 week,2 weeks and GOS at 3 months after treatment in the complex prescription astragalus mongholicus injection group were significantly higher than those in the control group(GCS, 1 week(9.8?2.6)score vs.(7.2?2.1) score,2 weeks(10.6?3.0) score vs.(7.8?2.2) score;GOS,3 months after treatment(4.8?1.0) score vs.(3.6?0.8) score,all P
4.Recurrent intracerebral hemorrhage
Rongjun ZHANG ; Xiaofeng WANG ; Shuande LI ; Jianxin LIU ; Shuzhen YANG ; Jun WANG ; Bobo CHEN ; Zongchun TANG
International Journal of Cerebrovascular Diseases 2010;18(8):595-598
Recurrent intracerebral hemorrhage is a very serious cerebrovascular disease.Its incidence has shown a clear upward trend, and both disability and mortality have increased significantly compared to the first intracerebral hemorrhage. This article reviews the clinical classification, characteristics, risk factors, pathogenesis, and prognosis of recurrent intracerebral hemorrhage.
5.Changes of Muscle-related Genes and Proteins After Spaceflight in Caenorhabditis elegans
Chi WANG ; Chen SANG ; Higashibata AKIRA ; Ishioka NORIAKI ; Long RONG ; Chun YANG ; Yan SUN ; Zongchun YI ; Fengyuan ZHUANG
Progress in Biochemistry and Biophysics 2008;35(10):1195-1201
The molecular mechanism underlying muscular atrophy and gravisensing during spaceflight is still unknown. The major effects of spaceflight on body-wall muscles of Caenorhabditis elegans (C. elegans) in the structures and functions wore examined, and five important muscle-related genes and three proteins were studied after nearly 15-day spaceflight. The changes for the wall-muscles were observed in situ. Decreased muscle fiber size was observed with myosin immunofluorescence and duller dense-body staining in flight samples, which suggested that muscular atrophy had happened during spaceflight. However, F-actin staining showed no differences between the spaceflight group and ground control group. Otherwise, after returning to the earth the C eleganu displayed reduced rate of movement with a lower ratio (height/width) in crawl trace wave, which indicated a functional defect. These results demonstrated that C. elegans muscular development was changed in response to microgravity, and changes also occurred at the level of gene transcription and protein translation. Expression of dys-I increased significantly in body-wall muscles, while hlh-1, myo-3, uric-54 and eg1-19 RNA levels decreased after spaceflight. Dystrophin (encoded by dys-1) is one of important components in dystrophin-glycoprotein complex (DGC). Increased dys-I expression after flight implied that the muscular cell would accept more gravity signals by DGC in mierogravity in order to keep mechanical balance within the cells. It is concluded that DGC was involved into the mechanical transduction in body-wall muscles of C. elegans when gravity varied, which potentially played a vital role in gravisensing. The changes ofhlh-l, myo-3, tmc-54 and egl-19 suggested that they had the effects of promoting microgravity-induced muscular atrophy in strcture and function aspects. Result of Western blotting showed that the level of myosin A in spaceflight group decreased, further confirmed that atrophy happened during flight.
6.Surgical treatment of moyamoya disease
Rongjun ZHANG ; Xiaofeng WANG ; Zongchun TANG ; Jianxin LIU ; Jun WANG ; Muzhen YANG ; Xiaolin MAO ; Xingqui YANG ; Bobo CHEN ; Yijun WEI ; Jialong LI ; Junfeng SUN
International Journal of Cerebrovascular Diseases 2011;19(4):302-306
Moyamoya disease is a chronic progressive cerebrovascular disease. Its disability rate and lethality rate are higher. The direct and indirect revascularization can increase cerebral blood flow and reduce the occurrence of cerebral ischemia and cerebral hemorrhage. This article reviews the pathophysiological basis of its surgical treatment, surgical timing, indications, surgical treatment methods and efficacy.