1.The progress of continuous blood purification technology in the treatment of sepsis
Chinese Pediatric Emergency Medicine 2011;18(2):172-174
The incidence of sepsis increased year by year. A number of methods are proposed at home and abroad for the treatment of sepsis, and continuous blood purification therapy has become a hot issue. The treatment of sepsis has been well studied in different ways, especially in function and mechanism of continuous blood purification. The available data was reviewed in this paper.
2.Effect of tea polyphenols and sulforaphane on the expression of protein kinase A anchoring protein 95 and cyclin E2 in lung cancer tissue
Chinese Journal of Biochemical Pharmaceutics 2014;37(4):73-75
Objective To investigate the effect of tea polyphenols and sulforaphane on the expression of protein kinase A anchoring protein 95 and cyclin E2 in lung cancer tissue.Methods 56 cases confirmed by pathology and operation therapy for lung cancer patients,were randomly divided into combined treatment group and control group,each had 28 cases.The content of protein kinase A anchoring protein 95 and cell cycle protein E2 in all patients were determined with ELISA.The expression of protein kinase A anchoring protein 95,cyclin E2 and statistics of microvessel density(MVD) were detected by immunohistochemical SP method.The protein levels of protein kinase A anchoring protein 95 and cell cycle protein E2 protein were detected by Western Blot. Results The contents of protein kinase A anchoring protein 95 and cyclin E2 in control group were higher than that in combination group,the differences were statistically significant(P<0.01 ).Immunohistochemical SP results showed that protein kinase A anchoring protein 95 and cyclin E2 expression all had positive expression,and the MVD in control group was higher than combination group(P<0.01);Western Blot results showed that the expressions of protein kinase A anchoring protein 95 and cyclin E2 protein in control group were higher than combination group(P<0.01).Conclusion Protein kinase A anchoring protein 95 and cyclin E2 expressions are increased in both groups in lung cancer tissues,and they are positively correlated,negatively correlated with drug treatment,which can be used as the indexes of lung cancer evaluation.
3.Quercetin suppresses HeLa cells by blocking PI3K/Akt pathway.
Tao, XIANG ; Yong, FANG ; Shi-Xuan, WANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2014;34(5):740-4
To explore the effect of quercetin on the proliferation and apoptosis of HeLa cells, HeLa cells were incubated with quercetin at different concentrations. Cell viability was evaluated by MTT assay, cell apoptosis was detected by Annexin-V/PI double labeled cytometry and DNA ladder assay. Cell cycle was flow cytometrically determined and the morphological changes of the cells were observed under a fluorescence microscope after Hoechst 33258 staining and the apoptosis-related proteins in the HeLa cells were assessed by Western blotting. The results showed that quercetin significantly inhibited the growth of HeLa cells and induced obvious apoptosis in vitro in a time- and dose-dependent manner. Moreover, quercetin induced apoptosis of HeLa cells in cell cycle-dependent manner because quercetin could induce arrest of HeLa cells at G0/G1 phase. Quercetin treatment down-regulated the expression of the PI3K and p-Akt. In addition, quercetin could down-regulate expression of bcl-2, up-regulate Bax, but exerted no effect on the overall expression of Akt. We are led to conclude that quercetin induces apoptosis via PI3k/Akt pathways, and quercetin has potential to be used as an anti-tumor agent against human cervix cancer.
4.Early diagnosis, prevention and treatment of myocardial ischemia during endoscopic retrograde cholangiopancreatography in elderly patients
Xuan FANG ; Yali LI ; Xinmei CHEN
Chinese Journal of Geriatrics 2016;35(2):137-140
Objective To investigate the risk factors and biomarkers for early diagnosis and treatment for myocardial ischemia during endoscopic retrograde cholangiopancreatography (ERCP) in patients aged ≥75 years,in order to improve the effectiveness and security of ERCP.Methods A total of 82 patients undergoing ERCP in our hospital from Jan.2013 to Dec.2014 were divided into the elderly group (n =42,aged≥75 years) and the non-elderly group (n =40,aged <75 years).The pre-and post-operative ECG findings,laboratory serological indexes,ERCP operating parameters and post-operative complications were compared between two groups.Results ASA grade was increased in elderly patients as compared with the non-elderly group.The intraoperative hypothermia,preoperative infection and jaundice,and hypertension were risk factors for myocardial ischemia during ERCP.The biochemical indexes including myeloperoxidase,creatine kinase and cardiac troponin Ⅰ were the biomarkers for early diagnosis of myocardial ischemia in patients with non-specific changes of ST-T wave.The indications of anesthesia meeting operation,the consecutive and close anesthesia monitoring,application of nitroglycerin,thermal insulation during operation,oxygen inhalation can effectively relieve myocardial ischemia during ERCP operation.Conclusions The early discovering and effectively treating myocardial ischemia during ERCP can ensure the safe and effectiveness of ERCP in elderly patients aged ≥75 years.
5.Perinatal outcome of monochorionic diamniotic twins with selective intrauterine growth restriction
Hanjing CHAI ; Yanmin LUO ; Xuan HUANG ; Yi ZHOU ; Qun FANG
Chinese Journal of Obstetrics and Gynecology 2013;(6):416-420
Objective To evaluate the perinatal outcome of three types of monochorionic diamniotic (MCDA) twins with selective intrauterine growth restriction (sIUGR).Methods From January 2005 to June 2012,clinical data of 42 pairs of MCDA twins (84 fetuses) with sIUGR and 71 pairs of normal MCDA twins (142 fetuses) in the same period were analyzed retrospectively in the First Affiliated Hospital of Sun Yat-Sen University.Fetuses with sIUGR were classified into three groups based on umbilical artery Doppler flow.There were 25 cases of type Ⅰ,11 cases of type Ⅱ and 6 cases of type Ⅲ.The perinatal outcome was compared between sIUGR and normal MCDA twins,and among the three types of sIUGR as well.Perinatal outcomes included gestational age at delivery,rate of intrauterine fetal death (IUFD),birth weight,intertwin discordance of birth weight,neonatal death and survival rate at 6 months.Results (1) The gestational age of sIUGR at delivery was significantly earlier than the control group [(34 ± 3),(36 ±2) weeks,respectively],and the rate of IUFD of both fetuses of sIUGR was significantly higher (4.8%,0,respectively).In the sIUGR group,the average birth weight of large or small twins[(2130 ±.350),(1520 ±400) g,respectively] was smaller than those in the control group [(2470 ± 500),(2340 ± 460) g,respectively].The difference was statistically significant (P < 0.05,P < 0.01,respectively).The intertwin discordance of birth weight in sIUGR group was significantly larger (27.6%) than the control group(4.0%,P<0.01).(2) The gestational age at delivery in type Ⅱ and type Ⅲ [(34 ±5),(34 ±2) weeks,respectively] was significantly earlier than the control group (P < 0.05).The rate of IUFD of both fetuses in type Ⅱ (18%) was significantly higher than in type Ⅰ (0) and the control group (0,P < 0.05).In sIUGR group,the average birth weight of small twins in type Ⅰ,type Ⅱ and type Ⅲ was (1640 ±430),(1330 ±310) and (1500 ±380) g respectively,all of which were significantly smaller than that in the control group (P < 0.05).The average birth weight of small twins in type Ⅱ was smaller than in type Ⅰ and the difference was statistically significant (P < 0.05).In sIUGR group,the intertwin discordance of birth weight in type Ⅰ,type Ⅱ and type Ⅱ was 24.1%,34.6%,31.3% respectively,all of which were significantly larger than that in the control group(4.0%,P < 0.05).There were no statistically significant differences of the intertwin discordance of birth weight among the three types of sIUGR(P >0.05).Survival rate at 6 months in type Ⅱ (64%) was significantly lower than in type Ⅰ (92%) and the control group (91.5%,P<0.01).Conclusions The perinatal outcome of MCDA twins with sIUGR is poor.The outcome is different among the three types of sIUGR,and type Ⅰ is the worst.Type Ⅱ is associated with a high risk of intrauterine fetal demise.It is important to monitor the intrauterine situation closely.
6.Spectral-domain OCT features of macular edema induced by central retinal vein occlusion
Xuan, ZOU ; Rong-ping, DAI ; Fang-tian, DONG ; Hong, DU
Chinese Journal of Experimental Ophthalmology 2011;29(6):535-538
Background Cystoid macular edema(CME) is an important cause of visual impairment of central retinal vein occlusion(CRVO).Spectral-Domain optical coherence tomography(SD-OCT) has increased speed and higher resolution,offering a better chance of understanding the morphological changes and pathogenesis of CME. Objective This study was to survey the morphologic features of macular edema associated with CRVO by SD-OCT. Methods Clinical data of the patients with CRVO diagnosed in Department of Ophthalmology,Peking Union Medical College Hospital from March 2008 to August 2009 were retrospectively analyzed.SD-OCT features of macular edema induced by CRVO were analyzed and recorded.Results The average macular foveal thickness was(527.5±218.2) μm in macular edemas eyes.Main morphological changes included 55 cases(84.6%) of CME,15 cases of(23.1%) serous macular detachment(SMD),and 10 cases(15.4%) of simple macular edema,and these findings occurred at the same time in some eyes.Cystoid spaces in the parafoveal region were seen in the inner nuclear layer,outer plexiform layer and outer nuclear layer,and discontinuous or weak inner segment/outer segment(IS/OS) line was often seen in CME.The incidence of CME associated with incomplete posterior vitreous detachment(PVD) was 14.5%,and that of neural epithelial edema associated with incomplete PVD was 10.0%,showing an insignificant difference between them(χ2=0.000,P=1.000).The average area of SMD was 1838.4μm ×1428.1μm×190.1μm,and the incidence of partial PVD was higher(χ2=4.266,P=0.039).Conclusion SD-OCT can reveal the micro-morphological change of macular zone in macular edema eye.SD-OCT enabled visualization of its spatial extent in each retinal layer and the condition of IS/OS layer.Serous macular edema is related with partial PVD.
8.Study on Bilingual Teaching of Microbiology in Western College of China
Ming-Guo JIANG ; Li-Fang YANG ; Jin-Cai XUAN ;
Microbiology 1992;0(06):-
Bilingual teaching is one of education reform in China.The essay analyzed the necessity of bilingual teaching and clarified the reason why it can procced in microbiology.Search after the way in microbiology course according to the character of college in western China.The practice accumulated experience for bilingual teaching.
9.Serum nesfatin-1 levels in gestational diabetes mellitus in relation to insulin resistance and pancreatic β-cell function
Lu DING ; Honglin HU ; Fang DAI ; Rong XUAN ; Changjiang WANG
Chinese Journal of Endocrinology and Metabolism 2014;30(3):210-213
The association of serum nesfatin-1 levels with insulin resistance and pancreatic β-cell function in gestational diabetes mellitus was investigated.Oral glucose tolerance test(OGTT) was performed in ninety pregnant women from 24,to 28 gestational weeks.They were divided into three groups according to OGTT:45 nomal controls,27 gestational diabetes mellitus with fasting plasma glucose (FPG) of 5.1 mmol/L to 7.0 mmol/L (GDM1),18 gestational diabetes mellitus with FPG more than 7.0 mmol/L (GDM2).Serum nesfatin-1 levels were significantly higher in patients with GDM1 and GDM2 than in controls (P<0.01),and in GDM2 group it was also higher than GDM1 group(P<0.05).Fasting serum nesfatin-1 was positively correlated with FPG,30 min plasma glucose,1 h plasma glucose,2 h plasma glucose,homeostasis model assessment for insulin resistance,and PGAUC,but negatively correlated with homeostasis model assessment for β-cell function.Furthermore,multiple stepwise regression analysis showed that FPG was the independent influencing factor of serum nesfatin-1 level.Nesfatin-1 was positively correlated with insulin resistance,while negatively correlated with pancreatic β-cell function.Nesfatin-1 may play a role in the pathogenesis of gestational diabetes mellitus.
10.Clinical significance of serum calcium-binding protein A9(S100A9)levels in patients with rheumatoid ar- thritis
Wenhua XUAN ; Qin WU ; Yumeng SHI ; Fang WANG ; Wenfeng TAN
The Journal of Practical Medicine 2017;33(16):2658-2661
Objective To investigate the serum level of calcium-binding protein A9(S100A9)in patients with rheumatoid arthritis and explore its potential clinical significance. Methods The serum level of S100A9 was measured by ELISA in 79 rheumatoid arthritis (RA) patients and 20 healthy controls (HC). The correlation of S100A9 level and relevant clinical parameters were analyzed. Results The serum level of S100A9 was significantly increase in RA patients than those in HC. The serum level of S100A9 was higher in high disease activity than that in moderate and low disease activity in the RA group. There was a positive correlation in serum S100A9 level and DAS28 score,Rheumatoid factor,tender joint count and swollen joint count. Conclusion The serum level of S100A9 increases in RA patients and correlates with RA activity.