1.The Researching Progress on Mechanism of Anti-tumor Action of Emodin
International Journal of Traditional Chinese Medicine 2008;30(3):228-230
Emodin has been known for its various pharmacological functions, including anti-rumor, anti-inflanmation,the inhibition of cell proliferation and secretion of pancreatic enzyme, acceleration of osteoblast cell differentiation and fibrinolysis, and promotion of wound healing. The researching progress of anti-tumor function of emodin was reviewed in this paper for the purpose of understanding it's mechanism of anti-tumor comprehensively.
2.Role of Neuroretinal Rim Volume / Rim Area ratio in Early Diagnosis of Primary Open Angle Glaucoma
Journal of Kunming Medical University 2006;0(06):-
Objective To explore the role of Neuroretinal Rim Volume/ Rim Area(RV/RA) ratio in Early Diagnosis of Primary Open Angle Glaucoma(POAG).Methods All candidates were divided in to three groups(31~40 years old,41~50 years old,51~60 years old),Heileberg Retina Tomography(HRT)were used to test retinal disk,and the RV/RA ratio were calculated.Result There are obviously difference between nomal and POAG group in RV/RA(P
3.Application of a Self Designed Retractor Made by Stainless Steel Tongue Depressor in Small Incision Appendectomy
Chunguang LI ; Peng YUAN ; Xuelai LIU
Chinese Journal of Minimally Invasive Surgery 2015;(6):548-550
[Summary] Between February 2010 and November 2014, a retractor fabricated by stainless steel tongue depressor was used in 30 cases of small incision appendectomy in our department .All the operations were performed via an incision 1.5-3 cm in length.No complications were found .Such self designed retractor can be clinically utilized with characteristics of cheapness , safety, and good exposure of operative field .
4.Metrology Measurement and Quality Analysis of Medical Oxygen Flowmeter
Huimei WANG ; Haibo LIU ; Chunguang YANG
Chinese Medical Equipment Journal 2003;0(10):-
Objective To check some medical oxygen flowmeters in use in the military area command. Methods According to JJG 917-1996 buoy oxygen inhalant measuring rules, 930 oxygen flowmeters in the military area command were measured. Results The unqualified reasons of medical oxygen flowmeter mainly lay in the capability decline of pressure resistance of humid bottle, the poor airproof of the interface, the overflow of pressure, and the overflow of flux value. Conclusion To improve the quality situation of medical oxygen flowmeter, the department of technical supervision, hospital and manufacturer need to make efforts together.
5.Clinical Efficacy of Danshen and Chuanxiongqin Injection for Frequent Attacks of Transient Cerebral Ischemia: Observation of 40 Cases
Bing ZHANG ; Yan WANG ; Chunguang LIU
China Pharmacy 1991;0(06):-
OBJECTIVE:To observe the clinical curative effect of Danshen and Chuanxiongqin injetion for frequent attacks of transient cerebral ischemia. METHODS: A total of 78 patients with frequent attacks of transient cerebral ischemia were enrolled:40(treatment group) were assigned to receive Danshen and Chuanxiongqin injection 10 mL with 0.9% physionlogical saline 200 mL iv gtt q.d, 38 (control group) to receive Xuesaitong injection 10 mL with 0.9% physiological saline 200 mL iv gtt q.d for 14 days(for both group).RESULTS: There were significant differences between the treatment group and the control group in effective rate (95.00% vs.57.89% respectively) (P
6.Effect and mechanism of signal transduction pathway in urocortininduced cardiomyocytes hypertrophy in neonatal rat
Chunguang LIANG ; Hongxin WANG ; Lei HUANG ; Jie LIU
Chinese Journal of Pharmacology and Toxicology 2009;23(6):436-442
AIM To investigate the effects and mechanism of cardiomyocyte hypertrophy induced by urocortin. METHODS The cardiomyocytes were divided into 8 groups: normal control, urocortin, staurosporine(Sta), verapamil(Ver), H89, urocortin+Sta, urocortin+Ver, and urocortin+H89 groups. The cardiomyocytes diameter was measured by computer photograph analysis system. The protein synthetic rate was obtained through measuring the incorporation of [~3H]-leucine into myocyte protein by liquid scintillation method. The total protein content was assayed by Lowry method. The expression of atrial natriuretic peptide (ANP) was determined by Western blot. [Ca~(2+)]_i transient was measured by Till image system by cell loading Fura-2/AM. RESULTSUrocortin group enhanced cardiomyocyte volume, protein synthesis, total protein content and expression of ANP by 30.9%, 36.3%, 35.5% and 34.7%;urocortin+Sta group decreased cardiomyocyte diameter, protein synthesis, total protein content and expression of ANP by 16.5%, 22.1%, 18.1% and 21.3%;urocortin+H89 group decreased the cardiomyocyte diameter, the protein synthesis,total protein content and expression of ANP by 16.6%, 21.5%, 19.5% and 20.6%;urocortin+Ver decreased the cardiomyocyte diameter, the protein synthesis, total protein content and the expression of ANP by 17.1%, 20.9%, 17.9% and 19.9%;Sta, H89 and Ver could decrease the [Ca~(2+)]_i transient induced by urocortin. CONCLUSION The hypertrophic effect of urocortin in rat neonatal cardiomyocytes is mediated via activation of protein kinase C and protein kinase A pathway and L-type calcium channels.
7.Effects of Shenqi Compound Recipe on expression of COX-2 mRNA in aorta in GK rats
Min CHEN ; Hong GAO ; Chunguang XIE ; Ya LIU ; Can ZHUANG
China Journal of Traditional Chinese Medicine and Pharmacy 2006;0(09):-
Objective:To explore the effects of Shenqi Compound Recipe on the expression of Cycloxygenase-2 (COX-2)mRNA in aorta in GK rats.There were five groups:GK group,model group,atorvastatin group,Shenqi Compound Recipe group and normal control group.During the experiment periods,each group was administrated correspondent substance respectively for 35 days.Serum concentrations of C reactive protein(CRP)were determined by ELISA.The mRNA expressions of COX-2 in aorta were detemined by reverse transcriptase PCR(RT-PCR).Results:Compared with model group,concentrations of CRP in serum and the mRNA expression of COX-2 all decreased in atorvastatin group and Shenqi Compound Recipe group(P
8.The effect of the combination of dexmedetomidine and sufentanil on monitoring anesthesia care during burr-hole surgery for patients with chronic subdural hematoma
Wei LI ; Chunguang REN ; Guangjun XU ; Yong ZHAO ; Lei LIU
The Journal of Practical Medicine 2017;33(11):1850-1854
Objective To evaluate the effect of the combination of dexmedetomidine and sufentanil on monitoring anesthesia care during burr-hole surgery for patients with chronic subdural hematoma. Methods 96 pa-tients underwent burr-hole surgery for chronic subdural hematoma with MAC were randomly divided into two groups:Group D and Group DS (n=48 in each group). Local anesthetic block was started at least 10 min after DEX and sufentanil infusion. Ramsay sedation scale of the two groups was maintained to 3. Anesthesia onset time, hemo-dynamics, the amount of rescue midazolam or fentanyl, the time to first dose of rescue midazolam or fentanyl, the to-tal number of intraoperative patient movements, postoperative recovery time, patient and surgeon satisfaction scores, and the adverse events were recorded. Results Compared with group D, anesthesia onset time was significantly less in group DS (13.68 ± 3.13 vs. 11.82 ± 2.43 min, P=0.002). More patients in group D required rescue midazol-am to achieve RSS=3 compared with group DS (31.25%15/48 vs. 12.50%6/48, P=0.023). Compared with group D, significantly fewer patients in group DS required rescue fentanyl to relieve pain (10.42%5/48 vs. 27.08%13/48, P = 0.036). Additionally, the total dose of rescue fentanyl in group DS was significantly higher (89.48 ± 23.27 vs. 125.28 ± 33.52μg, P=0.000), and the time to first dose of rescue fentanyl was longer than group D(18.34 ± 4.45 vs. 14.34 ± 3.63 min, P=0.000). The total number of patient movements during the burr-hole surgery was higher in group D than group DS (35.42%17/48 vs. 16.67%8/48, P=0.036). The time to recovery for discharge from the PA-CU (time to an Aldrete score ≥ 9) was significantly shorter in group DS compared with group D (17.54 ± 5.92 vs. 12.57 ± 5.28 min, P=0.000). Results from the patient and surgeon satisfaction scores showed significant differenc-es favoring group DS (P<0.05). More patients in group D showed higher levels of the overall incidence of bradycar-dia (37.50% 18/48 vs. 18.75% 9/48, P = 0.041) and hypotension(37.50%18/48 vs. 14.58%79/48, P=0.011)com-pared with group DS. Conclusions Compared with DEX alone, DEX-sufentanil associated with fewer number of in-traoperative patient movements, less amount of rescue scheme, could be safely and efficiently used for MAC during burr-hole surgery for patients with chronic subdural hematoma.
9.Regulation of PPARβactivation on protein synthesis and IL-1βexpression in hypertrophic cardiomyocytes
Li SHENG ; Ping YE ; Chunguang HAN ; Yongxue LIU
Military Medical Sciences 2015;(6):453-455,479
Objective To investigate the effect of activation of peroxisome proliferator-activated receptor β/δ ( PPARβ/δ)on protein synthesis and expression of angiotensin (Ang)Ⅱ-induced hypertrophic myocytes(MC) in vitro.Methods Hypertrophy in neonatal rat cardiac MC culture was established with AngⅡ, then the effect of GW0742 on hypertrophy was detected.The synthetic rate of protein in MC was detected by 3 H-leucine incorporation.mRNA and protein expression of atrial natriuretic IL-1βwas measured by reverse transcription-polymerase chain reaction ( RT-PCR) and Western-blotting. Results and Conclusion GW0742 could reduce the synthetic rate of protein in hypertrophic MC while down-regulating the mRNA and protein expression of IL-1β, but no changes were observed after treatment with DMSO.The result demonstrated that activation of PPAR beta/delta inhibited cardiac hypertrophy in vitro and this effect might be related to inflammatory factors.
10.Effect of different ions at various concentrations outside the carotid-sinus on blood pressure
Libing LIU ; Jie LIANG ; Chunguang DUAN ; Lijun SHANG ; An XIE
Chinese Journal of Tissue Engineering Research 2006;10(8):182-183
BACKGROUND: There are pressure sensors in carotid-sinus, which are very sensitive to blood pressure regulated by ions and play an important role in the regulation of blood pressure. But it is yet not very clear how different ions regulate the blood pressure through pressure sensors in carotidsinus.OBJECTIVE: To observe the effect of different ions at various concentrations outside the carotid-sinus.DESIGN: Self-control experiment.SETTING: Preclinical Experiment Center, Fourth Military Medical University of Chinese PLA.MATERIALS: The experiment was accomplished in the Preclinical Experiment Center, Fourth Military Medical University of Chinese PLA from December 2000 to June 2001. Totally 18 New Zealand pure strain rabbits were provided by the Aninal Experimenting Center of Fourth Military Medical University of Chinese PLA. They were standard grade Ⅱ, of either gender and body mass was (2.0±0.2) kg.METHODS: The rabbits were divided into Na+, K+ and Ca2+ groups according to random numbers, and each group consisted of 6 rabbits. After anaesthesia, tracheal intubatton was performed on the rabbit, and bilateral carotid arteries were separated with carotid-sinus separated on one side and vessel intubatton performed in the other side for blood pressure measurement. Then various concentrations of Na+, K+ and Ca2+ ions were added outside the carotid-sinus with the pipette to make the carotid-sinus completed immersed in the ion solutions. The basal blood pressure and the peak value after ions addition were recorded respectively.MAIN OUTCOME MEASURES: The basal blood pressure and the peak value after ions addition.RESULTS: After Na+ (0.15, 1.5 mol/L) was added the blood pressure was(97±12), (83±17) mm Hg. It was decreased significantly compared with the basal value (106±14), (105±12) mm Hg (t=2.946, P < 0.05). K+ (0.4 mol/L)decreased the blood pressure significantly [(106±12), (64±13) mm Hg, (t=13.496, P < 0.01)], but other concentrations of K+ were not effective. Ca2+(0.07 mol/L) increased the blood pressure to (113±16) mm Hg compared with the basal value (103±12) mm Hg (t=-3.627, P < 0.01).CONCLUSION: Na+, K+ and Ca2+ regulate the blood pressure by acting on the carotid-sinus directly. High concentrations of Na+ and K+ possess the effect of decreasing the blood pressure, while high concentrations of Ca2+increases it, which may be an important mechanism of blood pressure regulation.