1.Research of the Immunotoxicity of Shuanghuanglian Injection
Jinfei LI ; Yang LI ; Qi CHEN ; Zhaohui CHENG ; Shun TANG ;
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(03):-
Objective To investigate the allergic reaction of Shuanghuanglian Injection(SI)and chlorogenic acid.Meth- ods The sensitization of SI was evaluated by observed the systemic active allergic reaction on guinea pigs.The homogeneous and heterogenic passive skin allergic reactions in rats,mice and guinea pigs were observed to compare the sensitationz of SI and chlorogenic acid.Results The possibility of SI causing allergic reaction was higher than that of chlorogenic acid.Con- clusion It is suggested that the possibility of SI as a compound arising adverse reactions be higher than that of chlorogenic acid.
2.Diagnosis and treatment of blunt diaphragmatic rupture
Wenfeng ZHANG ; Qin FANG ; Yu LI ; Dongyi CHEN ; Shun XU
Chinese Journal of General Practitioners 2008;7(1):60-61
A retrospective analysis was carried out in 36 patients with blunt diaphragmatic rupture during March 1991 and March 2006. Twenty-two diagnoses were confirmed preoperatively, and the rest 14were confirmed perioperatively. Three patients underwent surgical treatment after no response to conservative therapy. Thoracotomy was performed in 21 patients, laparotomy in 9, thoracotomy plus laparotomy in 5 and combined thoraco-laparotomy in 1. Most diaphragmatic rupture may be caused by blunt collision and could lead to thoracoabdominal injury. In spite of high mortality rate, the condition is usually under diagnosed. Definite diagnosis and timely operation are important to increase survival rate and reduce mortality.
3.Effect of butylphthalide on the expression of GFAP and VEGF in the hippocampus of rats with (Alzheimer's) disease
Deren HOU ; Li XUE ; Kun CHEN ; Yi TIAN ; Shun WAN
Journal of Central South University(Medical Sciences) 2010;35(2):111-115
Objective To determine the expression of glial fibrillary acidic protein(GFAP) and vascular endothelial growth factor(VEGF) in the hippocampus of rats with Alzheimer's disease(AD), and to determine the effect of butylphthalide on them and its significance. Methods Sixty male adult rats were randomly divided into a model group, a Butylphthalide group, and a control group. AD models were established by injecting β-amyloid protein 1-42 into the hippocampus of rats. Sixty days later,the rats were sacrificed and both sides of the hippocampus were sectioned for immunohistochemistry. Results Positive cells of GFAP in the hippocampus of the model group increased and the expression of VEGF decreased statistically, compared with the control group(P<0.01). The positive cells of GFAP in the hippocampus of the butylphthalide group decreased and the expression of VEGF increased significantly, compared with the model group(P<0.05). Conclusion Butylphthalide may protect the neuron-vascular unit of the hippocampus of Alzheimer model rats by inhibiting the expression of GFAP and increasing the expression of VEGF.
4.Establishment of a flow cytometry-based test for the detection of pyroptosis of BMDM
Xue LIU ; Lixiang CHEN ; Shun LI ; Xiaohui ZHOU
Chinese Journal of Microbiology and Immunology 2016;36(2):149-154
Objective To establish a flow cytometry-based test for the detection of pyroptosis of murine bone marrow-derived macrophages (BMDM). Methods Bone marrow cells were isolated from wild type (WT) C57BL/ 6 mice and/ or caspase-1-/ - C57BL/ 6 mice and then stimulated with macrophage colony-stimulating factor (M-CSF) to differentiate into murine BMDM. PBS, LPS and LPS+adenosine triphosphate (ATP) were respectively used to stimulate the BMDM. Western blot assay was performed to detect the cleav-age of IL-1β and caspase-1. The levels of IL-1β in the supernatants of cell culture were measured by ELISA. Lactate dehydrogenase (LDH) released in the culture media was detected by using LDH kit. The pyroptosis of murine BMDM was detected by using flow cytometry analysis after double-staining with TMR red+caspase-1, AnnexinⅤ+caspase-1 and propidium iodide (PI)+caspase-1. Results IL-1β was detected in the culture medium of BMDM treated with LPS+ATP and the cleavage of IL-1β and caspase-1 was confirmed by Western blot assay, which indicated that the NLRP3 inflammasome was activated by LPS+ATP treatment. Compared with the caspase-1-/ - mice group, higher levels of LDH were detected in the culture medium of BMDM isolated form the WT mice. Results of the flow cytometry analysis after staining BMDM with caspase-1 plus AnnexinⅤ or PI showed that more cells undergoing pyroptosis were detected in the LPS+ATP treat-ment group than that in LPS or PBS treatment group, which were consistent with the results of the reported flow cytometry with caspase-1+TMR red staining. Conclusion The flow cytometry-based test with double-staining of caspase-1 plus AnnexinⅤ or PI could be used for the detection of pyroptosis of murine BMDM.
5.A brief review on the progress of mouse models of liver cancer
Shun LI ; Lixiang CHEN ; Xiuhua PENG ; Jiangming ZHU ; Xiaohui ZHOU
Acta Laboratorium Animalis Scientia Sinica 2016;24(2):213-216
Liver cancer remains one of the leading cause of cancer death in the world.Animal models, especially mouse models, are important tools for studying the biological characteristics, pathogenesis, new drug screening and therapy of liver cancer.Up to now, although the development of various animal models accelerates the research of liver cancer, all the existing models have their own disadvantages.Lacking of economical and applicable animal models that can mimic the human liver cancer seriously restrict the further study of liver cancer.With the development of genetically modified technologies, it provides a fast, easy and reliable method to establish liver cancer models.In this review, we describe the different types of mouse models used in liver cancer research, with emphasis on genetically engineered mice used in this field, which may open an avenue for functional cancer genomics and generation of liver cancer models by using gene editing technologies.
6.Effects of Virtual Reality Rehabilitation on Balance for Patients with Parkinson's Disease
Si CHEN ; Jie LIU ; Shun LI ; Kai WANG ; Yugong HE
Chinese Journal of Rehabilitation Theory and Practice 2017;23(9):1091-1095
Objective To investigate the effects of a training program based on virtual reality on static and dynamic balance perfor-mance in patients with Parkinson's disease (PD). Methods From June, 2014 to June, 2016, 46 patients with PD were randomly divided into control group (n=23) and experimental group (n=23). The control group received routine balance training, while the experimental group re-ceived balance training of virtual reality, for six weeks. They were assessed with Unified Parkinson's Disease Rating Scale part 3 (UP-DRS3), Berg Balance Scale (BBS), TimedUp and GoTest (TUGT) and Hamilton Depression Scale (HAMD) before and after training. The envelope area, anteroposterior standard deviation (AP-SD), mediolateral standard deviation (ML-SD) of centre of pressure (COP) were also measured with posturography. Results The scores of BBS, TUGT and HAMD improved in both groups after training (t>2.657, P<0.05), and improved more in the experimental group than in the control group (t>2.426, P<0.05). The score of UPDRS3 and the parameters of pos-turography improved in the experimental group (t>2.626, P<0.05), and improved more than that in the control group (t>2.112, P<0.05). Con-clusion Virtual reality rehabilitation is more effective than routine balance training on the static and dynamic balance function in patients with PD, and may release their depression.
7.Proteomic study for serum biomarkers in Parkinson's disease using weak cation exchange magnetic beads and MALDI-TOF-MS
Jian WANG ; Yaohua LI ; Xiaoli ZHENG ; Yanli ZHANG ; Xin LI ; Shun YU ; Xin HE ; Biao CHEN
Chinese Journal of Neurology 2009;42(2):98-101
Objective To screen for the potential protein biomarkers in serum for the diagnosis of idiopathic Parkinson's disease (PD) using proteomic fingerprint technology. Methods Proteomic fingerprint technology combining weak cation exchange (WCX) magnetic beads with MALDI-TOF-MS was used to identify and compare the serum proteins from 61 patients with idiopathic PD, 29 patients with other neurodegenerative diseases (OND) and 30 healthy blood donors. Model of biomarkers and proteomics patterns associated with PD was analyzed by Biomarker Patterns Software. The model also was validated by 40 newly recruited PD cases. Results A total of 17 discriminating M/Z peaks which were related to PD were identified ( nonparametric test, Z:-4.039--2.633, P<0.01 ). Five biomarkers with M/Z of 6121, 5234, 2961,4309 and 8170 respectively generated an excellent model of distinguishing between PD and healthy groups. The sensitivity was 98.4% and the specificity was 83.1%. Blind testing in 40 newly recruited cases demonstrated a sensitivity of 85.0% (17 of 20 PD) and a specificity of 70. 0% (14 of 20 controls). Conclusions Combination of WCX magnetic beads with MALDI-TOF-MS is a useful method in establishing proteomic patterns associated with PD. It also may be used to construct a diagnostic model with PD Biomarkers. Although this model of biomarkers fails to distinguish between PD and OND controls, it is able to differentiate PD from healthy controls.
8.Ecological distribution and diversity of medical Ferula species produced in Xinjiang.
Jun ZHU ; Xiao-Jin LI ; Li SUN ; Shun-xing GUO ; Juan CHEN
China Journal of Chinese Materia Medica 2015;40(2):356-361
To study the ecological distribution and diversity of endophytic fungi associated with Ferula of medicinal plants in Xinjiang. The endophytic fungi were isolated from roots, stems and leaves of Ferula by microbiology research methods and technology. The endophytic fungi were identified using ITS rDNA sequence analysis and morphology analysis. The composition, diversity and preference of endophytic fungal community were analyzed with Shannon-Wiener biodiversity index (H') and Sorensen coefficient (Cs). A total of 337 strains endophytic fungi were isolated and classified into 38 genera, Alternaria, Aureobasidium and Fusarium were the dominant genera. Among the 337 isolates, the endophytic fungi of F. sinkiangensis were the most, The Shannon-Wiener biodiversity index (H') associated with roots of F. fukanensis was the highest, reached 1.85. The highest Sorensen coefficient ( Cs) was between leaf of F. sinkiangensis and leaf of F. ovina, reached 0.75. From the result, endophytic fungi were widely distributed in six Ferula, there are some notable differences between distribution and composition of the endophytic fungi isolated from different issues and different species of Ferula, show a certain degree of species and tissue preference. The results obtained in this study will provide realistic basis and theoretical basis for further study the secondary metabolites of endophytic fungi associated with Ferula, and the relationship between endophytic fungi and their host plants.
Biodiversity
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Ecology
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Endophytes
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isolation & purification
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Ferula
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microbiology
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Fungi
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classification
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isolation & purification
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metabolism
9.Study of sequential erlotinib and chemotherapy as first-line treatment for advanced non-small-cell lung cancer
Zhiwei CHEN ; Zhengbo SONG ; Yongfeng YU ; Ziming LI ; Shun LU ; Meilin LIAO
Cancer Research and Clinic 2010;22(1):32-34
Objective To observe the short-term efficacy and safety of sequential administration of erlotinib and chemotherapy in unselected, chemonaive patients with advanced non-small-cell lung cancer (NSCLC). Methods Previously-untreated patients (n=23) with stage Ⅲ_B/Ⅳ NSCLC and ECOG PS of 0/1 received erlotinib (150 mg/d) on days 15-28 of a 4-week cycle that included gemcitabine (1250 mg/m~2, days 1 and 8), and either cisplatin (75 mg/m~2, day 1) or carboplatin (AUC=5, day 1). The primary end points were tumor response rate and safety. Results 23 patients received a total of 95 cycles of treatment, and all were evaluable for efficacy and toxicity. The overall response rate was 30.4%, 0 case achieved complete responses (CR), 7 cases (30.4%) achieved partial responses (PR), 14 cases (60.9 %) achieved stable disease (SD), 2 cases (8.7 %) achieved progression disease (PD). The disease control rate was 91.3 %. The sequential administration of erlotinib following gemcitabine/platinum chemotherapy was well tolerated. The major grade 3 treatment-related adverse events were eutropenia (13.4%), rash (8.7%), nausea (8.7%) and thrombocytopenia (8.7%). No treatment-related interstitial lung disease. Conclusion equential administration of erlotinib following gemcitabine/platinum chemotherapy was effective, and the toxicity was tolerable. This treatment strategy warrants further investigation.
10.Superfine comminution of Glycyrrhiza uralensis roots by vibration mill.
Feng-shun WU ; Li CHEN ; Yi-ping WU
China Journal of Chinese Materia Medica 2005;30(3):185-187
OBJECTIVETo discuss the mechanism of superfine comminution of traditional Chinese medicine (TCM) at low temperature.
METHODGlycyrrhiza uralensis roots were at room superfinely comminuted temperature and at low temperature by cryogenic vibration mill. The superfine powders were observed and analyzed by laser particle size analyzer and SEM.
RESULTThe powder processed at low temperature was of smaller effective diameter and narrower size distribution and was also with smoother surface and smaller angle of repose.
CONCLUSIONThe G. uralensis roots could be superfinely comminuted with high efficiency and simple procedure by vibration mill at low temperature.
Glycyrrhiza uralensis ; Particle Size ; Plant Roots ; Plants, Medicinal ; Powders ; Technology, Pharmaceutical ; instrumentation ; methods ; Vibration