1.Progression of clinic study of anti-tumor platinum drug
Cancer Research and Clinic 2008;20(11):787-790
At present clinic study and use of anti-tumour platinum drug are wide and active. The paper reviews progression of clinic study and use of anti-tumour platinum drug and expects its prospect.
2.Experimental study on inhibitory effect of yan xiao capsules on hepatocarcinoma mice
Cancer Research and Clinic 2000;0(06):-
Objective To study the inhibitory effect of yan xiao capsules on hepatocarcinoma mice. Methods Forty mice were randomly divided into control group ,CTX group,ADM group,trial group. Observe tumour weight ,the span time of tumour-bearing mice, tumour morphology and the mortality rate of ascites cancer cell by direct killing respectively. Results The tumour weight markedly decreased in trial group, the rate of inhibition tumour was 52.0 %(P
3.Value of transcranial Doppler ultrasonography on diagnosing the cerebral vasospasm following subarachnoid hemorrhage
Jiangming ZHAO ; Yi YANG ; Zhiying DING
Journal of Clinical Neurology 1992;0(01):-
Objective To explore the value of transcranial Doppler ultrasonography (TCD) on diagnosing the cerebral vasospasm (CVS) following subarachnoid hemorrhage (SAH). Methods TCD was used to detect and monitor the cerebral blood flow status to estimate CVS following SAH in 30 cases, then the results of TCD were analyzed by combining with clinical manifestation and SAH severity on CT. Results 17 patients (56.7%) had the evidence of CVS confirmed by TCD, 10 of them were nonsymptomatic and 7 were symptomatic. The incidences of CVS in patients with Fisher grade Ⅲ and Ⅳ were more higher than gradeⅠandⅡ(P
4.Apply value of sentinel lymph node detection in patients with cervical cancer
Yuehua DENG ; Jinqiong YANG ; Zhiying YUAN
Chinese Journal of Primary Medicine and Pharmacy 2006;0(06):-
Objective To probe into the clinical apply value of sentinel lymph node detection in patients with cervical cancer.Methods 33 patients with cervical cancer underwent SLNS detection by using blue dye or methlene blue 4ml or lymphazurin was injected into the cervix at 4 points around the tumor at the time of radical hysterectomy and bilateral pelvic lymphadenectomy1 tumor characteristics surgical findings and specific locations of lymphatic dye uptake were recorded and correlated with final pathology results.Results Among 33 patients undergone this detection,dye uptake was not seen in 1 patient,dye uptake was seen in 32 patients,the SLNS were successfully detected in 81.25%(26/32);7 patients didn't discriminated SLN,the rate was 21.88%(7/32).There were 6 cases who were discovered pelvic cavity lymph nodes metastases in 26 patients discriminated SLN successfully,in all 12 piece metastases lymph nodes were SLN,sensitivity was 6/6,accuracy was 100%(26/26),fake negative rate was 0.Conclusion Sentinel lymph node dectection by the way of blue dye has more clinical apply value in patients with cervical cancer.
5.Effects of somatostatin on ?-glycuronidase (?-G) activity in blood and perit oneal exudate in a simian model of acute necrotic pancreatitis
Zhiying YANG ; Weisong TANG ; Ping ZHAO
Chinese Journal of General Surgery 2000;0(11):-
Objective To observe changes of ?-glycuronida se (?-G) activity in blood and intraabdominal exudate in a monkey model with ac ute necrotic pancreatitis and the effects of somatostatin.Method The ANP model was induced by intrapancreatic duct injection of bile and 5% trypsin. Somatostatin was administrated at a dosage of 10 ?g?kg~-1?h~-1 in the treatment group (6 monkeys), w hile normal saline was given in 6 control monkeys. Blood and exudate were col lected for the meas urement of ?-G activity (?g/h?ml~-1). Resul ts (1)the mortality rate was 100% and 50% in the control group and treatment group, and the average survival time was (31?9) h and (53 ?24) h (P
6.A METHOD OF THE ARTIFICIAL LIPOFUSCIN PREPARATION
Zhiying XIAO ; Changyi XIAO ; Yi YANG
Acta Anatomica Sinica 1957;0(04):-
Objective To investigate the method of the artificial lipofuscin preparation. Methods Extracting the hepatic mitochondrion of rat, we applied oxidation-reduction method to making and obtaining the artificial lipofuscin.The capability of artificial lipofuscin being digested by peritoneal macrophages of mice was examined. Results The artificial lipofuscin had positive reactions both to specific histochemical stain and FITC fluorescence label.Positive granules or fluorescence were present in cytoplasm of the macrophages and its distribution was similar to that of positive control.Conclusion The artificial lipofuscin had the same histochemical character and biological effect as natural lipofuscin, so it could be used as a substitute for anti-senescence research.
7.Protective effects of cordycepin on renal proximal tubular cells injury induced by lipopolysaccharide
Yongli YANG ; Hui XIANG ; Zhiying XIAO
Chinese Critical Care Medicine 2021;33(2):203-206
Objective:To investigate the protective effect and potential mechanism of cordycepin on renal proximal tubular cells injury induced by lipopolysaccharide (LPS).Methods:Renal proximal tubular cells NRK-52E were incubated on a cell culture plated at a density of 1×10 5/mL for experiment, then divided into control group (Ctrl group), LPS group (cells were stimulated with 1 mg/L LPS), 10 μmol/L or 20 μmol/L cordycep in intervention groups (LPS+C 10 group and LPS+C 20 group). Cell viability was measured using cell counting kit-8 (CCK-8) reagent. The level of intracellular reactive oxygen species (ROS) was detected by 2',7'-dichlorofluorescin diacetate (DCFH-DA) staining. The protein expressions of inflammatory factors intercellular cell adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), interleukin-1β (IL-1β), and nuclear factor-κB (NF-κB) were detected by Western blotting. Results:Compared with the Ctrl group, LPS significantly inhibited NRK-52E cell viability, increased intracellular ROS, and up-regulated the expressions of ICAM-1, VCAM-1, IL-1β and NF-κB. Compared with LPS group, after treated with 10 μmol/L or 20 μmol/L cordycepin, NRK-52E cell viability was significantly increased (Ctrl group as 1: 0.717±0.017, 0.916±0.036 vs. 0.554±0.046) and intracellular ROS level was significantly decreased (Ctrl group as 1: 1.527±0.165, 1.098±0.168 vs. 2.543±0.127), meanwhile the expressions of ICAM-1, VCAM-1, IL-1β and NF-κB were significantly down-regulated [Ctrl group as 1, ICAM-1/GAPDH: 2.364±0.097, 1.561±0.074 vs. 3.101±0.121; VCAM-1/GAPDH: 2.866±0.135, 1.920±0.098 vs. 4.170±0.119; IL-1β/GAPDH: 2.358±0.107, 1.563±0.179 vs. 3.301±0.210; phosphorylation NF-κB p65 (NF-κB p-p65)/GAPDH: 2.559±0.166, 1.596±0.148 vs. 3.183±0.098], the differences were statistically significant (all P < 0.05). Compared with the LPS+C 10 group, the cell activity of LPS+C 20 group was more significant (0.916±0.036 vs. 0.717±0.017, P < 0.01), and the expressions of ICAM-1, VCAM-1, IL-1β, NF-κB were down-regulated more significantly (ICAM-1/GAPDH: 1.561±0.074 vs. 2.364±0.097, VCAM-1/GAPDH: 1.920±0.098 vs. 2.866±0.135, IL-1β/GAPDH: 1.563±0.179 vs. 2.358±0.107, NF-κB p-p65/GAPDH: 1.596±0.148 vs. 2.559±0.166, all P < 0.05).Conclusion:Cordycepin could significantly increase the survival rate of NRK-52E cells, reduce intracellular ROS level, and inhibit inflammation, and the anti-inflammation effect can be related with NF-κB pathway.
8.Effect of natural killer cells treated by serum of severe preeclampsia patient on apoptosis and endothelin-1 secretion of endothelial cells
Jun WEI ; Lin LIN ; Yu SUN ; Zhiying YANG ; Tao SHANG
Chinese Journal of Perinatal Medicine 2011;14(5):289-293
Objective To investigate the effect of natural killer (NK) cells treated by serum of severe preeclampsia patient on the function of endothelial cells.Methods Fifteen patients with severe preeclampsia and 15 normal pregnant women from the Obstetrics department,Shengjing Hospital,China Medical University were admitted into this case-control study from January 1,2006 to December 31,2008.NK cells from healthy non-pregnant woman were incubated with 20% serum from severe preeclampsia patients or normal pregnant women for 20 hours.Then,human umbilical vein endothelial cells ( HUVEC) and serum-treated NK cells were co-incubated for 24 hours.Apoptosis of HUVEC was checked by flow cytometry and electronic microscope.Endothelin-1 (ET-1) levels in the supernatants of HUVEC and NK cells were examined by radioimmunologic method.Results In severe preeclampsia group,the percentage of early apoptosis cell (Annexin V-FITC+ /PI+ ) was (23.81±4.79)%,that of late apoptosis cell (AnnexinV-FITC+/PI+ ) was (3.29±1.04) %,while those were (16.59±5.13)% and (2.24±0.72)% respectively in normal pregnant group (P<0.01).There was no significant difference in dead cells (Annexin V-FITC- /PI+ ).Under electronic microscope,typical morphologic changes of apoptosis were shown in severe preeclampsia group.Level of ET-1 in
9.The effect of Huagan Jiedu decoction on Cytokine in rats of chronic hepatic injury
Ju YANG ; Maoying FU ; Xuefeng GU ; Taihui FANG ; Zhiying WANG
International Journal of Traditional Chinese Medicine 2010;32(6):491-492
Objective To explore the mechanism of Huagan Jiedu decoction in treatment of chronic hepatitis B by testing the influence of the decoction on Serum IL-2, IL-4 and IFN-γ of rat models of chronic hepatic injury. Methods The model of Chronic hepatic injury was established by subcutaneously injecting 40% CCl4-olive oil solution in rats according to the ratio of 3ml per kg. of body weight. 60 healthy rats were divided randomly into a normal group, a model group, a low dose of Huagan Jiedu decoction group, a large dose of Huagan Jiedu decoction group, and a control group (Qingre Jiedu tablet group), 15 cases in each group. The Serum IL-2, IL-4 and IFN-γ were detected in each group separately. Results Compared with the normal group, the Serum IL-2 and IFN-γ were decreased (t=2.401, 2.337, P=0.0349, 0.0378) and the Serum IL-4 was increased (t=2.896, P=0.00861 ) in the model group; Compared with the model group, the Serum IL-2 and IFN-γ were increased (t=2.417, 2.344, P=0.0341, 0.0372, P<0.05; t=3.114, 2.988, P=0.0052, 0.0068) in the large Huagan Jiedu decoction group and the control group, while the Serum IFN-γ was increased (t=3.049, P=0.0062) in the low dose of Huagan Jiedu decoction group and the Serum IL-4 was decreased (t=3.102, 3.017, 2.979, P=0.0061, 0.0065, 0.0069)in both Huagan Jiedu decoction groups and the control group. Conclusion Large dose of Huagan Jiedu decoction has sound therapeutic effects on rats with chronic hepatic injury by decreaseing the content of the Serum IL-4 and increasing IL-2 and IFN-γ, and adjusting th1/th2 balance.
10.Epidemiological survey of nosocomial infection of imipenem-resistant Klebsiella pneumoniae in Beijing Shijitan Hospital
Duo YANG ; Na LI ; Xuli XIN ; Zhiying HU
Chongqing Medicine 2017;46(7):941-942,945
Objective To study the homology relationship among clinically isolated imipenem-resistant klebsiella pneumoniae strains and possible transmission route of drug resistant strains to provide a basis for blocking the transmission of this kind of bacteria in clinc.Methods Clinical samples collection and bacterial culture were routinely conducted,meanwhile the hand surface of ICU medical staffs and the surfaces of patien's bedside objects were performed the sample collection for conducting the bacterial count and culture.The bacterial identification and drug susceptibility test were performed by the VITEK-2 COMPACT system.The bacterial homology detection adopted the ERIC-rep-PCR method.Results Totally 642 strains of imipenem-resistant Klebsiella pneumoniae were clinically isolated from January 2011 to December 2013.Among them,389 strains(60.59%) were derived from ICU.72 strains (11.21%) fsrom the respiratory department,53 strains (8.26%) from the neurology department,41 strains (6.39 %) from the cardiovascular department,31 strains (4.83%) from the surgical department,11 strains (1.71%) from the gastroenterology department,5 strains (0.78 %) from the renal department,17 strains (2.65 %) from the emergency department and 23 strains(3.58%) from the other departments.One strain of imipenem-resistant Klebsiella pneumoniae was isolated from the IGU object surface.Among 642 clinical bacterial strains,there were 8 main clones,these 8 clone strains added up to 394 strains,which accounted for 61.37% of whole bacterial strains,the other 248 strains were single clones.Conclusion The monoclonal prevalence of imipenem-resistant klebsiella pneumonia in this hospital actually exists.The contact transmission may be the possible transmission route of this kind of infection.