1.The medication of elder patients with organic mental disorder
Journal of Medical Postgraduates 2003;0(06):-
The secondary mental disorder is one of the complications of senile cerebrovascular disease, the medication is different from generic mental disorder. This article summarized the medication of elder patients with secondary mental disorder.
2.Role of Matrix Metalloproteinase-9 in Signal Transduction Pathway of Cigarette Smoke-induced Airway Mucous Hypersecretion
Journal of Environment and Health 2007;0(07):-
Objective To determine the involvement of matrix metalloproteinase-9(MMP-9) in the signal transduction pathway of cigarette smoke-induced airway mucous hypersecretion. Methods The well cultured BEAS-2B airway epithelial cells were incubated with different concentrations of cigarette smoke extract (CSE),also some cells were preincubated with MMP-9 inhibitorⅠbefore CSE or exogenous epidermal growth factor(EGF) was added. The mucin(MUC)5AC mRNA level was analyzed by RT-PCR,MMP-9 and the phosphorylated EGFR(p-EGFR) protein production was assayed by western blot,MUC5AC protein and EGF protein were detected by enzyme-linked immunosorbent assay respectively,and gelatin zymography was used to determine the activity of MMP-9. Results Incubation of BEAS-2B cells with CSE up-regulated MUC5AC gene expression and protein production in a dose dependent manner (P0.05). Conclusion CSE stimulates the activity of MMP-9 and MMP-9 protein,causing the shedding of the EGF and leading to EGFR activation. This activation of EGFR downstream signaling pathway increases MUC5AC gene expression and mucin production.
3.Protective effects of estrogen on function of learning-memory and neuron of hippocampus in ovariectomized rats
Lihui DUAN ; Guoqing ZHOU ; Jinxia LIU
Journal of Clinical Neurology 2001;0(05):-
Objective To study the protective effects of estrogen on function of learning-memory and the neuron of hippocampus in the ovariectomized(OVX) rat model.Methods Estrogen 200 ?g/kg was injected into rats twice a weak followed the OVX rat models were estestablished(OVX+E2 group).The function of learning-memory was tested by Morris water maze;the tau hyperphosphorylation was detected by immunohistochemistry staining;the pathological changes of hippocampus was observed by HE staining and Bielschowski staining.Results Compared with OVX group,the function of learning-memory of Morris water maze in OVX+E2 group were significant improved(all P
4.Lipoprotein-associated phospholipase A2:an independent predictor of vascular risk and a novel target for therapy
Guoqing ZHOU ; Yongjun CAO ; Heqing ZHAO
International Journal of Cerebrovascular Diseases 2010;18(9):702-705
Lipoprotein-associated phospholipase A2(Lp-PLA2) can rapidly hydrolize and oxidize the oxidized phosphatidylcholine molecules produced in low density lipoprotein and atherogenic lipoprotein (a),generating the soluble proinflammatory and proapoptotic mediatorslyso-phosphatidylcholine and oxidized free fatty acids.It stimulates aggregation and activation of monocyte-macrophage system and induces apoptosis and damages the removal of dead cells.It plays an important role in the development of lipid necrotic core of atherosclerosis.Lp-PLA2 is not an independent risk marker of coronary artery disease and ischemic stroke,but also plays an important role in the development of atherosclerotic plaques.Selective Lp-PLA2 inhibitor reduces the development of necrotic cores.It may play a role in the stabilization of atherosclerotic plaques.At the same time,it may represent a novel target for the treatment of atherosclerosis.
5.Danhong injection plus bone marrow mesenchymal stem cell transplantation for treatment of cerebral infarction in rats
Peng ZHANG ; Guoqing ZHOU ; Jingjing SUN
Chinese Journal of Tissue Engineering Research 2013;(23):4286-4291
10.3969/j.issn.2095-4344.2013.23.015
6.Effect of early goal directed therapy on tissue perfusion and oxygen metabolism in patients with septic shock
Songmei LIN ; Yuming GAO ; Guoqing ZHOU
Chinese Journal of Postgraduates of Medicine 2014;37(22):55-58
Objective To observe the effect of early goal directed therapy (EGDT) on tissue perfusion,microcirculation and oxygen metabolism in patients with septic shock.Methods A prospective observational study was carried out in 69 patients with early septic shock within 24 hours.The eligible patients were treated with the standard procedure of EGDT.The partial pressure of transcutaneous oxygen (PtcO2) and transcutaneous carbon dioxide (PtcCO2) was monitored and the changes of hemodynamic data,tissue oxygen,microcirculation before and after reaching the criteria of EGDT were recorded.Results Compared with that before treatment,PtcO2,tissue oxygenation index (PtcO2/FiO2) after EGDT was increased [(78.1 ± 30.8) mmHg (1 mmHg =0.133 kPa) vs.(62.8 ± 24.1) mmHg and (141.7 ± 78.3) mmHg vs.(110.8 ± 60.5) mmHg],PtcCO2 and percutaneous arterial carbon dioxide partial pressure difference was decreased[(29.0 ±4.1) mmHg vs.(39.1 ±6.4) mmHg and (1.4 ±0.5) mmHg vs.(1.7 ±0.8) mmHg],there was significant difference(P< 0.05).There was no significant difference in PtcO2,PtcO2/FiO2,PtcCO2,central venous blood oxygen saturation,lactic acid,oxygen and oxygen consumption (P > 0.05).Conclusion EGDT can improve local tissue perfusion and microcirculation in patients with septic shock,body tissue perfusion index before and after EGDT may not be able to reflect the local tissue perfusion.
7.Therapy of cholelithiasis in patients of cirrhotic portal hypertension (CPH)
Qiyun GU ; Jun ZHAO ; Guoqing ZHOU
Chinese Journal of General Surgery 2014;29(4):292-294
Objective To discuss the therapy of cholelithiasis complicated with cirrhotic portal hypertension (CPH).Method In this study,clinical data were reviewed on 108 cases with cholelithiasis complicated with hepatic cirrhosis,including 78 cases who underwent surgery.Results Open cholecystectomy,subtotal cholecystectomy,laparoscopic cholecystectomy,open cholecystectomy plus spleectomy,splenectomy plus pericardial devascularization before biliary duct operation,leftlateral hepatectomy with biliary duct operation,and hepatic portal bile duct anaplasty with Roux-en-Y cholangiojejunostomy.10 patients received endoscopic treatment and 20 were treated conservatively.Results 73 patients were cured,with a cure rate of 67.6%; 32 patients were doing well (29.7%);3 patients died (2.8%) of massive hemorrhage and hepatic failure.The operative complications included ascites,jaundice,hemorrhage and hepatic insufficiency.Conclusions Before operation,the conditions of the patient should be accurately evaluated and a correct operative treatment option should be selected.Child C grade patients should be contraindicated for any surgery.
8.Effect of mini laparoscopic cholecystectomy
Guoqing WU ; Guofan WANG ; Xiaona ZHOU
International Journal of Surgery 2015;42(4):234-236
Objective To compare the clinical curative effect between mini laparoscopic cholecystectomy (MLC) and conventional laparoscopic cholecystectomy (LC).Methods Using random number table method to divide the patients into conventional laparoscopic cholecystectomy group (30 cases) and mini laparoscopic cholecystectomy group (27 cases).Compared the operation time,bleeding volume,VAS score,postoperative hospital stay,complications.Results No conversion to laparotomy and serious complications,but each group has 6 cases from the three holes increase to four holes,and 4 cases of MLC group were converted to traditional LC.MLC group and LC group,average operation time (57.5 ± 17) min and (50 ± 15) min (P > 0.05);the average postoperative hospital stay was (2.5 ± 1.4) d and (3.1 ± 1.5) d (P > 0.05);postoperative pain degree of MLC group of 6 h and 12 hrespectively (4.8±2.6) and (3.5±1.1),LC group were (5.5 ±2.7) and (5.0±2.1) points (P< 0.05).Conclusion Postoperative pain of MLC is lighter than LC,in appropriate cases,is a safe and effective treatment method.
9.Determination of the Related Substances in Azithromycin Tablet by HPLC-Electrochemical Detector
Jie LUAN ; Guoqing ZHOU ; Haixia WANG
China Pharmacy 2007;0(25):-
OBJECTIVE: To determine the content of the related substances in azithromycin tablet by HPLC-electrochemical detector.METHODS: The column was Gamma ARP-1/P.The mobile phase consisted of 0.014 mol?L-1 dipotassium hydrogen phosphate/0.020 mol?L-1 sodium hydroxide(pH was adjusted to 11 by phosphoric acid and sodium hydroxide)-acetonitrile(71∶29) at a flow rate of 0.7 mL?min-1.The column temperature was 40 ℃.The injection volume was 50 ?L.Glass carbon working electrode was set at +900 mV.RESULTS: The linear ranges of erythromycin peroxide,deoxyazithromycin,azithromycin impurity A,and N-demethlation azithromycin were 0.15~1.80 ?g(r=0.999),0.09~1.08 ?g(r=0.999),0.23~2.76 ?g(r=0.998) and 0.30~3.60 ?g(r=0.998),respectively.The average recoveries were 98.9%(RSD=1.1%),94.6%(RSD=5.4%),103.4%(RSD=3.4%) and 96.2%(RSD=4.3%),respectively.The contents of the related substances were all below 0.7%.CONCLUSION: The established method is reproducible,sensitive and reliable,and applicable for the detection of the related substances in azithromycin tablets.
10.Effect of lipidemia on time-resolved fluoroimmunoassay for determination of unconjugated estriol
Guoqing WANG ; Jun ZHAO ; Yuqiu ZHOU
International Journal of Laboratory Medicine 2017;38(2):189-190
Objective To investigate the effect of different degree lipidemia on time-resolved fluoroimmunoassay(TRFIA)for determination of unconjugated estriol(uE3).Methods Mixed serum was prepared by collecting different levels of lipidemia samples which were normal and chylous appearance from male and by mixing with definite value serum of uE3.The levels of uE3 in the sam-ples were measured by TRFIA and the effect of lipidemia on TRFIA for determination of uE3 was evaluated.Results For the ap-pearance of chylous specimens,mild lipidemia increased uE3,mid-or hiper-lipidemia samples reduced uE3 and the effect of both was considerable.Conclusion The chylous lipidemia has variant degree of influence to TRFIA for determination of uE3,then the results effect accuracy of Down′s screening.