1.Cerebrodynamic feature of fear and fright in traditional Chinese medicine theory of emotion
Dekun WANG ; Lei WANG ; Ting WANG
Chinese Journal of Tissue Engineering Research 2005;9(24):263-264
AIM: To investigate cerebrodynamic feature of fear and fright in traditional Chinese medicine theory of emotion through the compiling model of spontaneous electroencephalic sign.METHODS: Using clinical electroencephalography to input electroencephalic wave signs of the patients with fear and fright emotions psychologically into a real computer for image formation, investigating the cerebrodynamic feature.RESULTS: The electroencephalic waves were mainly escape mode for patients with fear emotion; while the electroencephalic waves were mainly condensing mode for patients with fright emotion.CONCLUSION: The emotional states (fear and fright) of human could be presented with physical method.
2.Navebine continuous intravenous infusion plus cisplatin in the treatment of advanced breast cancer
Feihai LIN ; Dekun WANG ; Haiming JIANG
Chinese Journal of Primary Medicine and Pharmacy 2006;0(10):-
Objective To evaluate the efficacy and toxicity of navebine(NVB) given by continuous infusion plus cisplatin combination therapy in the treatment of advanced breast cancer.Methods 60 patients with advanced breast cancer were enrolled in this study.The type of his to pathologyis invasive ductal carcinoma.19 patients had no previous chemotherapy but 21 cases received chemotherapy containing ADM.26 patients had ≥2 metasta-ticsites.All the patients received vinorelbine according to the following doses chedule:10mg bolus followed by 10mg by continuous infusion over 24 hours every 5 days every 3 weeks.Results 60 patients were evaluable for response.A total of 131 cycles were administered.The lverall response rate was 41.6%(3 patients achieved a complete response and 22 patients achieved a partial response).The median over all survival was 35 weeks and the median duration of response was 19 weeks.The dose limiting toxicity was marrow-suppression.Neutropenia was in 43% patients(31% was grade Ⅲ and Ⅳ).Thrombo-cytopenia and anemia were mild.Conclusion A highe rsponse is obtained in advanced breast cancer treated by continuous intravenous NVB infusion with tolerable toxicity and deserve further revaluation.
3.Treatment of iatrogenic biliary-tract injury: 22 cases report
Zhongmin YANG ; Dekun ZHENG ; Peng WANG ; Guanxiong LI
Chinese Journal of Rehabilitation Theory and Practice 2005;11(8):669-670
ObjectiveTo explore the methods of prevention and treatment of the iatrogenic biliary-tract injury.Methods22 cases with the iatrogenic biliary-tract injury were analyzed retrospectively.ResultsModified Roux-en-Y choledochojejunostomy was performed in 11 cases, end-to-end anastomosis of bile duct in 4 cases, repair of bile duct in 2 cases, a drainage of the inter bile duct and the abdominal cavity in 5 cases. Only 1 case of common bile duct injury after laparoscopic cholecystectoy was death from the toxic shock, another case of bile duct injury after conventional cholecystectoy with the drainage of abdominal cavity was death from multiple system organ failure, all of the other patients were cured.ConclusionThe iatrogenic biliary-tract injury may be causes variously, and should be discovered as soon as possible and be operated in time.
4.Compatibility Stability of Salvianolic Acid for Injection Combined with 8 Kinds of Common Solvents
Yan ZHOU ; Dekun LI ; Dazheng ZHOU ; Yuewu YANG ; Aichun JU ; Xiaoyi WANG ; Zhengliang YE
China Pharmacy 2017;28(17):2350-2356
OBJECTIVE:To investigate the compatibility stability of Salvianolic acid for injection (SAFI) combined with 8 kinds of common solvents. METHODS:Referring to package inserts,SAFI was collected and combined with 0.9% Sodium chlo-ride injection,5% Glucose injection,10% Glucose injection,Compound sodium chloride injection,Mannitol injection,Glycerol fructose and sodium chloride injection,Sodium lactate Ringer's injection,Glucose and sodium chloride injection,250 mL each re-spectively,and then sealed in the dark at the room temperature. The appearance of mixtures were observed,pH value,the number of insoluble particles,maximal absorption wavelength and maximal absorbance were detected,and the contents of salvianolic acid B,rosmarinic acid,lithospermic acid and salvianolic acid Y in mixtures were determined by HPLC at 0,1,2,4,8 h after mix-ing. RESULTS:Under above condition,no obvious change was found in appearance or pH values of the mixtures within 8 h. Maxi-mal absorption wavelength ranged 284.5-286.0 nm. After mixed with Mannitol injection,the number of particles≥10μm(1-8 h af-ter mixing)and particles ≥25 μm(4-8 h after mixing)exceeded the scope of Chinese Pharmacopoeia(2015 edition);the maxi-mal absorbance changed significantly(RSD=9.17%,n=5);the relative content of salvianolic acid B,rosmarinic acid,lithosper-mic acid and salvianolic acid Y decreased by more than 10%(RSD=14.65%,6.45%,8.97%,12.49%,n=5);after mixed with Sodium lactate Ringer's injection,the relative content of rosmarinic acid and lithospermic acid changed greatly (RSD=14.57%, 7.28%,n=5);after mixed with 5% Glucose injection(4-8 h after mixing)and Glycerol fructose and sodium chloride injection(8 h after mixing),the relative content of rosmarinic acid were less than 90%(RSD=6.30%,4.86%,n=5);and the number of particles ≥25μm exceeded the scope of phamcopoeia after mixing with Glycerol fructose and sodium injection(0 h). The number of insoluble particles in other mixtures were in line with the standard of pharmacopoeia;maximal absorbance had no significant change(RSD<5%,n=5),and the relative content change of analytes were all less than 10%. CONCLUSIONS:Clinical appli-cation of SAFI combined with Mannitol injection,Sodium lactate Ringe's injection and Glycerol fructose and sodium injecrion should be avoided. After mixed with 5% Glucose injection,SAFI should be used within 4 h. SAFI can be compatible with 0.9%Sodium chloride injection,10% Glucose injection,Compound sodium chloride injection and Glucose and sodium chloride injec-tion.
5.Biological activity evaluation of porous HA ceramics using NH4 HCO3/PVA as pore-creating agents.
Journal of Biomedical Engineering 2010;27(6):1280-1285
Porous HA ceramics were prepared by using NH4 HCO3/PVA as pore-formed material along with biological glass as intensifier, and these ceramics were immersed in Locke's Physiological Saline and Simulate Body Fluid (SBF). The changes of phase composition, grain size and crystallinity of porous HA ceramics before and after immersion were investigated by X-Ray Diffraction (XRD) and Scanning Electron Microscopy (SEM). The biological activity was evaluated. The porous HA ceramics showed various degrees of decomposition after immersion in the two solution systems, but there was no evident change in respect to crystallinity. Besides, the impact of different degrees of solution systems on the change of grain size and planar preferred orientation was observed. The TCP phase of the ceramics immersed in Locke's Physiological Saline decomposed and there was no crystal growth on the surface of ceramics; however, the grain size of ceramics immersed in SBF became refined in certain degree and the surface of ceramics took on the new crystal growth.
Bicarbonates
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chemistry
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Biomimetic Materials
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chemical synthesis
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chemistry
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Ceramics
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chemical synthesis
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chemistry
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Durapatite
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chemical synthesis
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chemistry
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Polyvinyl Alcohol
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chemistry
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Porosity
6.Research on chromatographic fingerprint of fruits of Schisandra chinesis.
Weidan WANG ; Zhengliang YE ; Lili SONG ; Wen SHEN ; Qiaosheng GUO ; Dekun LI ; Dazheng ZHOU
China Journal of Chinese Materia Medica 2010;35(21):2871-2873
OBJECTIVETo study the chromatographic fingerprint of the fruits of Schisandra chinensis, and identify the peaks.
METHODAnalysis was performed at 30 degrees C on a Waters Symmetry C18 column (4.6 mm x 250 mm, 5 microm), eluted with acetonitrile-water gradient elution. The flow-rate was 1.0 mL x min(-1), and detection wavelength was 218 nm. The peaks in the chromatogram were identified by LC-MS.
RESULTThe fingerprint of the fruits of S. chinensis was established, and fifteen peaks of lignans were identified.
CONCLUSIONThe method was easy, reliable and could be used as a powerful tool for the further quality control of S. chinensis.
Chromatography, High Pressure Liquid ; methods ; Drugs, Chinese Herbal ; analysis ; isolation & purification ; Fruit ; chemistry ; Lignans ; analysis ; isolation & purification ; Schisandra ; chemistry
7.Expression and clinical significance of cullin 4A in cholangiocarcinoma
Dong XUE ; Xiuliang XIA ; Dekun SONG ; Tinghai XIANG ; Jianqiang WANG ; Bengang GONG
Journal of International Oncology 2019;46(3):153-156
Objective To explore the expression of cullin 4A (CUL4A) in cholangiocarcinoma tissues and its clinical significance.Methods Primary fresh cholangiocarcinoma tissues (n =35) and normal bile duct tissues (n =15) from patients who underwent curative surgery in Binzhou People's Hospital of Shandong Province from February 2011 to December 2013 were collected.The expressions of CUL4A mRNA were detected by quantitative real-time PCR (qRT-PCR).Then,cholangiocarcinoma tissues (n =72) and normal bile duct tissues (n =36) from patients who underwent curative surgery in Binzhou People's Hospital of Shandong Province from January 2008 to January 2014 were collected.The expressions of CUL4A protein were tested by immunohistochemistry.The relationships between the expression of CUL4A and the patients' clinicopathologic features and prognosis were analyzed.Results The expression of CUL4A mRNA in cholangiocarcinoma tissues was obviously higher than that in normal bile duct tissues (3.876 ±0.975 vs.1.216 ±0.265),and the difference was statistically significant (t =12.23,P < 0.001).The positive rates of CUL4A protein in cholangiocarcinoma and normal bile duct tissues were 70.8% (51/72) and 2.8% (1/36) respectively,and the difference was statistically significant (x2 =44.524,P < 0.001).The expression of CUL4A protein in cholangiocarcinoma was related to the differentiated degree (x2 =4.341,P =0.037),neural invasion (x2 =8.326,P =0.004),TNM stage (x2 =7.745,P =0.005),lymph node metastasis (x2 =3.869,P =0.049) and vascular invasion (x2 =5.555,P =0.018).Survival analysis results showed that the median survival time of CUL4A positive patients was significantly shorter than that of CUL4A negative patients (32.40 months vs.51.30 months),and the difference was statistically significant (x2 =6.561,P =0.011).Conclusion The expression of CUL4A in cholangiocarcinoma tissues is higher than that in normal bile tissues.CUL4A plays an important role in the process of tumor invasion and metastasis and indicates poor prognosis,which may become a potential target for the diagnosis and therapy of the cholangiocarcinoma.
8.Assessment of nasopharyngeal carcinoma risk by EB virus antibody profile.
Weimin CHENG ; Guoxiong CHEN ; Honglin CHEN ; Ruixian LUO ; Zibo WU ; Yingsi LU ; Bojian ZHENG ; Mingfang JI ; Jinsheng LIANG ; Xintang CEN ; Dekun WANG ; Yongsheng ZONG ; Wenhan WU
Chinese Journal of Oncology 2002;24(6):561-563
OBJECTIVETo evaluate the risk of nasopharyngeal carcinoma (NPC) through EB virus antibody profile by enzyme linked immunosorbent assay (ELISA).
METHODSEBNA 1/IgA, EBNA 1/IgG and zta/IgG by ELISA and VCA/IgA by immmunoenzymatic method were detected in 121 NPC patients and 332 healthy subjects (HS) in the Pearl river estuary.
RESULTSThe sensitivity rates were 85%, 83% and 79% for EBNA 1/IgA, EBNA 1/IgG and zta/IgG, all three of which if combined was the highest 92%. The specificity rates were 86%, 86% and 80% for EBNA 1/IgA, EBNA 1/IgG and zta/IgG, all three of which if combined was also the highest 93%. According to the level of odds ratio, nasopharyngeal carcinoma risk could be divided into 3 groups: low, moderate and high-risk groups. 93% of HS had low risk of NPC with the odds ratio 0.0 to 0.3. 0.4% of HS had high risk of NPC with the odds ratio of 137.9%.
CONCLUSIONELISA is more objective than the traditional immunoenzymatic method in the detection and diagnosis of NPC. The combination of EBNA 1/IgA, EBNA 1/IgG and zta/IgG is able to evaluate the risk of NPC.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Antibodies, Viral ; analysis ; Enzyme-Linked Immunosorbent Assay ; Epstein-Barr Virus Nuclear Antigens ; analysis ; Female ; Herpesvirus 4, Human ; isolation & purification ; Humans ; Male ; Middle Aged ; Nasopharyngeal Neoplasms ; diagnosis ; virology ; Risk Factors
9.Overexpression of Hdac6 enhances resistance to virus infection in embryonic stem cells and in mice.
Dekun WANG ; Qingwen MENG ; Lihong HUO ; Meng YANG ; Lingling WANG ; Xinyu CHEN ; Jianchao WANG ; Zhiguo LI ; Xiaoying YE ; Na LIU ; Qiuyan LI ; Zhen DAI ; Hongsheng OUYANG ; Ning LI ; Jun ZHOU ; Lingyi CHEN ; Lin LIU
Protein & Cell 2015;6(2):152-156
10.Attenuation of Airway Inflammation and Airway Remodeling in Ovalbumin Asthmatic Rats by Artemisinin through PI3K/Akt Signaling Pathway
Yanmei WANG ; Yanchang LIANG ; Dekun GAN ; Runyang ZHAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(13):114-119
ObjectiveTo investigate the molecular mechanism of action of artemisinin in attenuating asthmatic airway inflammation and airway remodeling through the phosphoinositide 3-kinase(PI3K)/protein kinase B(Akt) signaling pathway. MethodFifty male SD rats were randomly divided into blank group, model group, and low-dose, medium-dose, and high-dose groups of artemisinin, with 10 rats in each group. The ovalbumin (OVA)-induced asthma model of the rats was established, and after successful modeling, the blank group and model group received tail vein injection of 1.0 mL·kg-1 normal saline, while the low-dose, medium-dose, and high-dose groups of artemisinin received tail vein injection of 12.5, 25, and 50 mg·kg-1 artemisinin daily for seven days. Airway resistance was measured by the acetylcholine chloride method. Cell number and species changes in the alveolar lavage fluid of each group were determined by flow cytometry. Morphological changes in airway endothelial tissue were determined by the hematoxylin-eosin (HE) staining method. Apoptosis was determined by CytoTox 96 method, and enzyme-linked immunosorbent assay (ELISA) method was used to determine the NOD-like receptor thermal protein domain associated protein 3 (NLRP3) inflammasome, interleukin-1β (IL-1β), and interleukin-10 (IL-10) expression. Western blot method was used to detect the (p)-PI3K/p-Akt level in the alveolar bronchial tissue of each group. ResultCompared with the blank group, the total number of cells, total number of macrophages, total number of eosinophils, total number of lymphocytes, and total number of neutrophils were significantly higher in the model group (P<0.05). HE staining showed that the airway mucosa of the rats had obvious edema, and a large number of inflammatory cells were infiltrated (P<0.05). The rate of apoptosis was significantly higher (P<0.05), and the levels of the inflammasome NLRP3, IL-1β, and IL-10 increased significantly (P<0.05). p-PI3K/p-Akt level increased significantly (P<0.05). Compared with the model group, the total number of cells, total number of macrophages, total number of eosinophils, total number of lymphocytes, and total number of neutrophils were significantly decreased after the intervention of artemisinin at low, medium, and high concentrations (P<0.05). HE staining showed that the degree of edema of the airway mucosa of the rats was reduced, and the area of the inflammatory cell infiltration was drastically reduced (P<0.05). The apoptosis rate was significantly reduced (P<0.05), and the levels of the inflammasome NLRP3, IL-1β, and IL-10 decreased significantly (P<0.05). p-PI3K/p-Akt level decreased significantly (P<0.05). ConclusionArtemisinin significantly inhibits NLRP3 inflammasome activation, reduces cellular pyroptosis and inflammatory cell expression, and attenuates airway inflammatory manifestations and airway remodeling in asthmatic rats, which may be related to the regulation of p-PI3K/p-Akt, and the results may provide laboratory insights and basis for the treatment of bronchial asthma with artemisinin.