2.Logistic regression analysis on fatal risk factors to patients with sepsis
Medical Journal of Chinese People's Liberation Army 2001;0(08):-
Objective To study the fatal risk factors to the patients with sepsis.Methods The data of 49 patients with sepsis were analyzed,who were consecutively admitted to intensive care unit(ICU)of Peking Union Medical College Hospital within six months.Patients' general states,clinical information,human leucocyte antigen-DR(HLA-DR)in blood monocytes and plasma level of diamine oxidase(DAO)were recorded.Simple logistic regression was done to analyze all the risk factors,and statistically significant variables were selected and used in multivariate and unconditioned Logistic regression analysis.The primary end point was hospital mortality.Results The subjects involved in present study were consisted of 49 patients with sepsis admitted to ICU of the Peking Union Medical College Hospital from Aug.2003 to Jan.2004,averagely aged 60.8?16.9 years;including 32 males(65.3%)and 17 females(34.7%);with APACHEⅡscores 18.6?8.0 and SOFA scores 5.9?3.8.Twenty-one out of the 49 patients(42.9%)were from non-operation department,and the other 28 patients(57.1%)were from operation department.ICU duration was 14.4?12.8 days;eighteen of the 49 septic patients died during hospitalization,with the 28-days mortality of 36.7%.Positive blood cultures(OR=5.237,95%CI 1.041~26.34,P=0.045),decreased platelet count and blood HLA-DR(OR=0.943,95%CI 0.901~0.98,P=0.01),and increased plasma levels of DAO(OR=2.235,95%CI 1.101~4.53,P=0.026)were obviously associated with mortality.The positive blood cultures,decreased blood HLA-DR and increased plasma levels of DAO were independent fatal risk factors for the patients with sepsis.Conclusions The positive blood cultures,decreased blood HLA-DR and increased plasma levels of DAO are high risk for the patients with sepsis at admission.
3.The effect and mechanism of wortmannin on human gastric carcinoma cells
Chinese Journal of General Surgery 2001;0(10):-
Objective To explore the effect and mechanism of wortmannin on the human gastric carcinoma cells. Methods SGC7901 cells were treated with 10nmol/L,30nmol/L and 60nmol/L of wortmannin,a specific inhibitor of AKT,for different time periods. Cell viability was estimated by MTT assay. Western blot was used to detect the level of NF-?B neucleoprotein and reverse transcriptasepolymerase chain reaction(RT-PCR) was used to determine transcription of NF-?B mRNA. Results All three different concentrations of wortmannin could inhibit the growth of SGC7901 cells,and the depression effect obviously depended on time and drug dose(P0.05). As the action time of wortmannin was prolonged,neucleoprotein and mRNA expression of NF-?B significantly decreased compared with the control (P
4.Corneal high order aberrations in adults with myopia:correlations with myopic degree and keratometry
International Eye Science 2016;16(6):1043-1047
?AIM: To investigate the corneal high order aberrations in adults with myopia and to study its correlations with myopic degree and keratometry.?METHODS: A total of 63 patients ( 126 eyes ) from the ophthalmology department of our hospital were included in this study during May 2014 to June 2015. Visual acuity, intraocular pressure ( IOP ) , diopter, slit lamp examination, central corneal thickness ( CCT ) , funduscopic examination, corneal topography and corneal total higher order aberrations ( THOAs ) were recorded. Right eye was selected. According to the spherical equivalence ( SE) , 63 eyes were divided into two groups, the mild to moderate myopia group (M-M group, SE<-6. 00D) and the high myopia group (H group, SE≥-6. 00D). The correlations of corneal THOAs with diopter, keratometry, IOP and CCT were analyzed. Kolmogorov-Smirnov Test was used for normality test. Independent-samples t test was used for comparison between two groups. Pearson correlation analysis was for comparison between two continuous variables.?RESULTS: Z44 was found a statistic difference between the M-M group and H group (t=2. 51,P=0. 02). IOP was negatively correlated with Z5-3(r= -0. 52,P=0. 01), and CCT was positively correlated with Z4-4(r=0. 43,P=0. 03) in H group. There was no correlation between higher order aberrations and SE in M-M group ( all P>0. 05 ) Total coma aberration ( TCA ) was negatively correlated with SE (r=-0. 57,P=0. 002) and spherical degree (Sph, r=-0. 55,P=0. 003) in H group. Z40 was positively correlated with average K (AK) (M-M group:r=0. 40,P=0. 02. H group:r=0. 55, P=0. 03), K steep (Ks) (M-M group:r=0.39, P=0.02. H group:r=0.51, P=0.01) and K flat (Kf) ( M-M group:r=0. 40, P=0. 02. H group:r=0. 57, P=0. 01) in both groups. Z53was negatively correlated with Ks(r=-0.4, P=0. 04) in H group.?CONCLUSION: The THOAs parameters are influenced by diopter and keratometry. TCA is negatively correlated with SE and Sph in patients with high myopia, and spherical aberration is positively correlated with keratometry.
5.Serum nitric oxide and cognitive function in patients with obstructive sleep apnea syndrome.
Chinese Journal of Practical Internal Medicine 2006;0(18):-
Objective To investigate the possible biochemical mechanism of cognitive impairment in patients with Obstructive sleep apnea syndrome(OSAS).Methods Polysomnography was administered to eighteen patients with OSAS and fourteen education and BMI-matched controls.All the cases were measured serum nitric oxide(NO)level by spectrophotometry and underwent neuropsychologicol test.Results The scores of visual recognition and digital symbol in the patients with OSAS were respectively 5.33?1.57;6.89?1.23,significantly lower than that in control group(8.57?1.91;9.07?1.00,P
6.Role of p38MAPK signal transduction pathway in lipopolysaccharide-induced acute lung injury in rats
Qin CHENG ; Long CHEN ; Gongjian LIU
Chinese Journal of Anesthesiology 2011;31(1):112-114
Objective To investigate the role of p38 mitogen-activated protein kinase (MAPK) signal transduction pathway in lipopolysaccharide (LPS)-induced acute lung injury (ALI).Methods Sixty male SD rats weighing 180-230 g were randomly divided into 4 groups: control group (group C, n = 6), ALI group ( n = 24),p38MAPK specific inhibitor SB203580 + ALI group (group SB + ALI, n = 24), SB203580 group (group SB,n =6). LPS 5 mg/kg was injected intravenously via tail vein in group ALI and SB + ALI, while the equal volume of normal saline was given instead in group C. Group SB + ALI received iv injection of SB203580 10 mg/kg via tail vein 30 min before LPS administration. Group SB received injection of SB203580. The rats were sacrificed at 1, 3 and6 h agter LPS administration (T1-3) in group ALI and SB + ALI (8 rats at each time point) andat 1 h after administration in C and SB groups. The lungs were immediately removed for microscopic examination and determination of phosphorylated p38MAPK (p-p38MAPK) expression, the concentration of protein in bronchoalveolar lavage fluid (BALF) and apoptotic index (AI). Another 32 rats were selected and randomly divided into 2 groups for survival study: ALI group and SB + ALI group ( n = 16 each), and then they were treated as mentioned above and observed for 48 h. Results The concentration of protein in BALF, AI and p-p38MAPK expression were significantly increased in group ALI and SB + ALI compared with group C, while decreased in group SB + ALI compared with group ALI ( P < 0. 05 ). LPS-induced pulmonary histological changes were significantly attenuated in group SB + ALI compared with group ALI. The survival rate was significantly decreased in group ALI compgred with group SB + ALI ( P < 0.01 ). Conclusion p38 MAPK signal transduction pathway is involved in LPS-induced ALI, which may be related to the apoptosis in the cells in the lung.
8.THE STUDY ON THE MECHANISMS OF IMMUNOSUPPRESSIVE EFFECT OF TRIPTERYGIUM WILFORDII HOOK ( TWH )
Fenghua QIN ; Shusheng XIE ; Zhenzhou LONG
Chinese Pharmacological Bulletin 1986;0(06):-
The mechanisms of immunosuppression of TWH were studied. The results indicated that TWH was able to reduce the antibody forming cells of splenocytes in mice and to suppress directly the proliferation of B cells to lipopolysaceharide ( LPS ) and to decrease the production of IL-2. Furthermore, TWH was able to produce immu-nosuppressive effect by activiting Ts cells.
9.Study on the Inhibitory Effects of Matrine on the Proliferation of Human Bladder Cancer BIU-87 Cells and Its Mechanism
Li YAO ; Xingbin WU ; Long QIN
China Pharmacy 2016;27(16):2177-2180
OBJECTIVE:To investigate inhibitory effects of matrine on the proliferation of human bladder cancer BIU-87 cells and its mechanism. METHODS:The cell viability was detected by MTT assay and inhibitory rate of cell proliferation was calculat-ed after human bladder cancer BIU-87 cells were treated with 0(negative control),0.5,1.0,2.0 and 4.0 mg/ml matrine for 24,48 and 72 h,respectively. After treated with 0 (negative control),0.5,1.0,2.0 and 4.0 mg/ml matrine for 48 h,the cell cycle and apoptotic rate were detected by flow cytometry;the expression of Survivin,Caspase-3 and Caspase-7 protein were detected by Western blot assay. RESULTS:Compared with negative control,the proliferation of BIU-87 cells were significantly inhibited after incubated with 1.0-4.0 mg/ml matrine for 24,48 and 72 h(P<0.05 or P<0.01),and inhibitory rate of cell proliferation increased in concentration and time-dependant manner;after treated for 48 h,the percentage of G0/G1 phase cells and apoptotic rate in-creased,while the percentage of cells at S phase and G2/M phase were decreased (P<0.05 or P<0.01);the expression of Cas-pase-3 and Caspase-7 protein increased,while the expression of survivin protein decreased after incubated with 0.5-4.0 mg/ml ma-trine for 48 h. CONCLUSIONS:Matrine can inhibit the proliferation of human bladder cancer BIU-87 cells,block the cell cycle and induce apoptosis;its mechanism may be related to the expression regulation of Survivin,Caspase-3 and Caspase-7.
10.On Developing Tendency of Counterpart Assistance from Four Sides
Long JIANG ; Qin ZHAO ; Yancang WANG ;
Chinese Journal of Medical Education Research 2002;0(01):-
For counterpart assistance in cooperation between two schools, it is the prerequisite to take counterpart assistance seriously at the height of building a well off society in an all round way; it is the most needed connecting point to construct the disciplines and teaching staff; it is the most substantial way to develop distant network teaching; it is the fundamental purpose to benefit the students. We will implement the essential of “Program of Counterpart Assistance for Higher Schools in Western China” proposed by Education Ministry in an all round way according to those “Four Aspects”, which have been proved to be the successful measures and developing tendency in the near future for counterpart assistance.