1.CHANGE OF MYOCARDIAL PERFUSION AND METABOLISM AFTER INTRAMYOCARDIAL ADMINISTRATION OF VEGF_(165) cDNA
Guoshun JIANG ; Langbiao ZHU ; Changqin GAO
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
To determine the change of myocardial perfusion and metabolism after intramyocardial administration of VEGF 165 cDNA, 36 dogs were randomly divided into 3 groups( n =12): VEGF 165 cDNA plasmid groups non VEGF 165 cDNA plasmid group, and myocardial infarction as control group. The results showed that the amount of perfusion and intake of FDG of anterial, anterial lateral and anterial septum walls of left vetricle at 4th and 8th week in VEGF 165 cDNA plasmid group were larger than those in control group ( P
2.STUDY ON EXTRACORPOREAL CIRCULATION IN 1286 PEDIATRIC PATIENTS
Jiali WANG ; Jiachun LI ; Changqin GAO
Medical Journal of Chinese People's Liberation Army 1981;0(04):-
To study retrospectively on extracorporeal circulation (ECC) in pediatric patients with congenital heart diseases. 1286 cases were divided into two groups. In groupⅠ( n =883) ECC were performed with nonpatterned tubing system, and in group Ⅱ( n =403) patterned tubing system was used. GroupⅠandⅡwere both primed with Ringer′s solastion and colloid. There were no stastistically significant difference in age or body weight between groupⅠand Ⅱ. The crystalloid priming volume in group Ⅱ was less than that in groupⅠ( P
3.Protective effects of ulinastatin on renal function in rabbits with traumatic hemorrhagic shock
Tingting CHEN ; Gang WANG ; Changqin GAO
Medical Journal of Chinese People's Liberation Army 1982;0(03):-
Objective To evaluate the protective effects of ulinastatin on renal function in rabbits with traumatic hemorrhagic shock. Methods Thirty rabbits were randomly allocated to three groups: control group, traumatic hemorrhagic shock group and ulinastatin treatment group. Blood was sampled at two time points: pre-shock and 4h after blood volume replenishment, and the plasma levels of NE, BUN and Cr were measured. 4h after blood volume replenishment, the rabbits were sacrificed, and the activity of MPO in renal tissue and urine NAG were measured. Results In all the three groups, the plasma concentrations of BUN and Cr were somewhat elevated but showed no statistical significance in comparison with each other. The activity of NE in blood, MPO in renal tissue and NAG in urine were increased significantly in the traumatic hemorrhagic shock group compared with those of ulinastatin-treated group (P
4.Study on the effect of the five pre-triage for infectious diseases in general hospitals
Changqin LI ; Chuanping HAN ; Song GAO ; Hua KONG ; Junying WANG
Chinese Journal of Hospital Administration 2011;27(8):585-588
Objective To investigate effective methodology for preventing infectious diseases from spreading within general hospitals at all levels. Methods Six hospitals at three levels in the city were made into two groups and investigated for their treatment of infectious diseases. The group of A1, A2 and A3 hospitals employs the five pre-triage, while the group of B2, B2 and B3 employs the routine pretriage. Results Comparison of undetected infectious cases between group A1, A2, A3 and group B1,B2,B3 identified significant difference with x2 testing, P<0. 005. Conclusion Five pre-triage method can screen, identify and pinpoint confirmed or suspected infectious disease patients from all outpatients in the first time, thus preventing and controlling the nosocornial transmission of epidemic or even an outbreak of nosocomial infection effectively.
5.Dissolution testing combined with computer simulation technology to evaluate the bioequivalence of domestic amoxicillin capsule.
Ruixue PAN ; Yuan GAO ; Wanli CHEN ; Yulan LI ; Changqin HU
Acta Pharmaceutica Sinica 2014;49(8):1155-61
Re-evaluation of bioequivalence of generic drugs is one of the key research focus currently. As a means to ensure consistency of the therapeutic effectiveness of drug products, clinical bioequivalence has been widely accepted as a gold standard test. In vitro dissolution testing based on the theory of the BCS is the best alternative to in vivo bioequivalence study. In this article, the conventional dissolution method and flow-through cell method were used to investigate the dissolution profiles of domestic amoxicillin capsules in different dissolution media, and the absorption behavior of the drugs with different release rates (t85% = 15-180 min) in the gastrointestinal tract was predicted by Gastro Plus. The flow-through cell method was thought better to reflect the release characteristics in vivo, and amoxicillin capsules with regard to the release rates up to 45 min (t85% = 45 min) were having a satisfied bioequivalence with the oral solution according to the C(max) and AUC. Although two different dissolution profiles of domestic amoxicillin capsules were found by flow-through cell methods, prediction results revealed that domestic capsules were probably bioequivalent to each other.
6.Effect of compound salvae-dropping-pill on intracellular free calcium concentration of cultured rat myocardial cells in case of hypoxia and reoxygenation
Quanfeng LI ; Xiaoming WANG ; Shijun ZHU ; Jing AI ; Huanhuan GAO ; Changqin XU
Chinese Journal of Pathophysiology 2000;0(07):-
AIM: To examine the effect of compound salvae-dropping-pill (CSDP) on intracellular free calcium in cultured rat myocardial cells subjected to hypoxia and reoxygenation.METHODS: The Fluo- 3/AM was applied to probe intracellular calcium concentration and the fluorescent intensity was detected using laser confocal microscopy technique.RESULTS: Fluorescent intensity in hypoxia plus CSDP group was significantly lower (1 217 78?312 07) than that of hypoxia group (1 509?508 48), and the Fluorescent intensity of hypoxia/reoxygenation plus CSDP group was also markedly lower (1 567.91?577 61) than that of hypoxia/reoxygenation group (1 617.60?477.53).CONCLUSION: The cultured rat myocardial cells could be effectively protected by administration of CSDP in case of hypoxia and reoxygenation through decreasing the intracellular calcium concentration. [