1.Protective effect of galanin on DMNQ-induced oxidative stress and cell damage in HEK-293A cells
Shu XU ; Jing SUN ; Xiaoxiao LI ; Zhiqing XU
Chinese Journal of Behavioral Medicine and Brain Science 2012;(12):1057-1059
Objective To study the protective effect of galanin on 2,3-Dimethoxy-1,4-naphthoquinone (DMNQ)-induced oxidative stress and cell damage in HEK-293A cells and its possible mechanisms.Methods The expression of galanin and its three receptors (GalR1-3) in HEK-293A were determined with RTPCR technique.The cultured HEK-293A cells were divided into four groups:Control,DMNQ,DMNQ + GAL and DMNQ + AR-M1896 and the cell viability was measured with CellTiter 96 AQueous One Solution Cell Proliferation Assay (MTS).Results The RT-PCR data revealed the presence of galanin and its receptors in HEK-293A cells.The expression level was in the order of GalR2 =Galanin > GalR3 > GalR1.DMNQ caused oxidative stress and cell damage in HEK-293A cells with a dose-dependent manner with an IC50 =13.4 μM.Application of galanin reduced the DMNQ-induced cellular toxicity in HEK-293A,which increased cell viability by 24.4% and 18.8% in 1 μM and 100 nM,respectively.AR-M1896,an agonist of GalR2 had a similar effect,increased cell viability by 8.7% and 8.9% in 1 μM and 100 nM,respectively.Conclusion These data suggest that galanin has a protective effect on DMNQ-induced oxidative stress and cell damage in HEK-293A cells,probably mediated by GalR2.
2.Correlation betw een -2578C > A polymorphism of vascular endothelium grow th factor gene and carotid atherosclerosis in Chinese Han population in Shandong, China
Xiaoxiao SUN ; Aiying LI ; Zheng ZHANG ; Yongpeng YU ; Ping GAN
International Journal of Cerebrovascular Diseases 2016;24(11):1010-1014
ObjectiveToinvestigatethecorrelationbetween-2578C>Apolymorphismofvascular endothelium grow th factor (VEGF) gene and carotid atherosclerosis in Chinese Han population in Shandong, China. Methods A total of 384 subjects aged 45-85 in Chinese Han population in Shandong, China w ere enroled. They were divided into either an increased intima-media thickness (IMT) group ( n=248) or a control group (n=136) according to the vascular ultrasound results. The baseline clinical data, such as the demographic data, vascular risk factors, and blood biochemical indicators in both groups were colected. Polymerase chain reaction w as used to detect the VEGF gene -2578C>A polymorphism genotype and alele. Multivariate logistic regression analysis was used to identify the independent risk factors for increased carotid IMT. Results The proportions of hypertension ( 70.6%vs.59.6%;χ2 =4.793, P=0.032), diabetes (18.4%vs.29.0%; χ2 =5.281, P=0.027), hyperlipidemia ( 45.2%vs.33.1%; χ2 =7.883, P=0.006), previous previous stroke or transient ischemic attack (29.0%vs.16.9%;χ2 =6.294, P=0.009), smoking (35.9%vs.19.9%;χ2 =10.708, P=0.001), as w el as total cholesterol ( 4.82 ±1.25 mmol/L vs.4.57 ± 0.94 mmol/L; t= -2.072, P= 0.039 ), triglyceride ( median, interquartile range; 1.71[0.84-2.22] mmol/L vs.1.53[1.08-2.59] mmol/L;Z= -2.560 P=0.010), low-density lipoprotein cholesterol (2.86 ±1.01 mmol/L vs.2.64 ±0.85 mmol/L; t= -2.407, P= 0.033 ), and high-density lipoprotein cholesterol (1.58 ±0.72 mmol/L vs.1.43 ±0.46 mmol/L;t= -2.183, P=0.030) in the increased IMT group, and there w ere significant differences compared w ith the control group. There w as significant difference in genotype frequency betw een the 2 groups (χ2 =10.131; P=0.006). There w as significant difference in C alele frequency between the increased IMT group and the control group (78.2% vs. 70.2%;χ2 =6.068, P=0.014). Multivariate logistic regression analysis showed that CC genotype (odds ratio 1.132, 95%confidence interval 1.021-2.141;P=0.029) w as an independent risk factor for increased carotid IMT. In 248 patients w ith increased IMT, 213 had at least 1 plaque, 76 (39.6%) of them w ere 1-2, 107 (43.15%) w ere 3-4, and 30 (12.1%) w ere 5-8 in plaque index. There w ere no significant differences in frequencies of genotypes (χ2 =6.766, P=0.149) and alele (χ2 =0.185, P=0.667) in the different plaque index groups. Conclusions -2578 single nucleotide polymorphism in the VEGF gene promoter is associated w ith carotid atherosclerosis, and C al ele may be its genetic susceptibility factor in Chinese Han population in Shandong, China.
3.Clinical efficacy of surgical treatment for chronic pancreatitis with mass in the head of the pancreas
Yongsheng YANG ; Baozhen SUN ; Hang LI ; Xiaoxiao YAO ; Xuewen ZHANG
Chinese Journal of Digestive Surgery 2014;13(11):856-858
Objective To investigate the clinical efficacy of treatment for chronic pancreatitis and mass in the head of the pancreas.Methods The clinical data of 19 patients with chronic pancreatitis with mass in the head of the pancreas who were admitted to the China-Japan Union Hospital of Jilin University from May 2008 to May 2013 were retrospectively analyzed,including 2 patients with gallstone.Methods of treatment were selected by in traoperative pathological results.All the patients were followed up by outpatient examination and telephone interview till January 2014.Results The operations of the 19 patients were successfully done,including 11 with pancreaticoduodenectomy,5 with exploratory laparotomy and 3 with the laparoscopic cholecystectomy and choledochojejunostomy.The operation time and intraoperative blood loss were (249± 140)minutes (50-390 minutes) and (320 ± 260)mL (50-900 mL).The postoperative mean time of recovery of gastrointestinal function and duration of postoperative hospital stay were 3.0 days (2.0-6.0 days) and 22.6 days (8.0-30.0 days) after the operation.The mean casein-IgG4 of 12 patients was higher (2.64 g/L) after operation.Five patients with operation-related complication were cured after symptomatic treatment,among 2 patients with leakage of the pancreatic fluid,2 with operative incision fat necrosis and liquefaction and 1 with bile leakage.No patients died perioperatively.Nineteen patients were followed up for 11.0 months to 36.0 months with the median time of 28.2 months.The pancreatic head mass of 8 patients with non-pancreaticoduodenectomy were reduced or disappeared by a computed tomography (CT) or magnetic resonance imaging (MRI) rescan,who were treated by the oral prednisone.No complications were detected in the other 11 patients with pancreaticoduodenectomy.Conclusion Method of surgery or medicine treatment for atypical mass in the head of the pancreas is selected according to the pathology results by effective communication with patients and family members,exploratory laparotomy and interpretative aspiration biopsy.
4.Research on the usage intention of hospital′s official App and influencing factors
Shuya ZHONG ; Jianping REN ; Tao ZHANG ; Liqi SUN ; Xiaoxiao LIU
Chinese Journal of Hospital Administration 2017;33(9):689-691
Objective To explore the influencing factors for usage of the official App of a hospital, based on Unified Theory of Acceptance and Use of Technology (UTAUT).Methods 616 outpatients were randomly sampled from outpatient clinics of three tertiary hospitals in Hangzhou for questionnaire survey, to learn the usage and intention for hospital′s official App.Results It was found that women (0.134), high performance expectancy (0.321), facilitating conditions (0.256), high effort expectancy (0.224), and desirable social influence (0.100) all contributed positive influence (P<0.05) to usage of such App.Conclusions It is recommended to enhance service functions of such App and simplify its usage, in addition to better promotion and online security measures.
5.Effect of soluble hemostasis gauze on pelvic infection after cesarean section
Huiying YANG ; Xiaoxiao LI ; Jianshe ZHANG ; Quanxing BI ; Li SUN
Chinese Journal of Infection Control 2015;(4):268-269,271
Objective To evaluate the effect of intraoperative use of soluble hemostasis gauze on postoperative pel-vic infection in parturients undergoing cesarean section.Methods Data about cesarean section parturients in obstet-ric group(n=322)and gynaecology group (n =92)were surveyed by clinical follow-up and retrospective analysis method,obstetric group adopted bulk packing of gauze,gynaecology group adopted flat lay packing ,incidence of postoperative pelvic infection between parturients who used soluble hemostasis gauze with different packing meth-ods,as well as with different pieces were compared and analyzed.Results Pelvic infection rate in obstetric group and gynaecology group was 4.04%(13/322)and 0.00%(0/92)respectively,there was no significant difference be-tween two groups(P =0.082 ).In obstetric group,pelvic infection rate in parturients who used ≤3 pieces of solu-ble hemostasis gauze was 0,used >3 pieces was 11 .82%,there was significant difference between the two (P <0.001).Conclusion Rational use of soluble hemostasis gauze in caesarean operation can effectively avoid postopera-tive pelvic infection.
6.Applications of disposable circumcision stapler with lidocaine cream combined with lidocaine injection anesthesia in circumcision
Xiaoxiao JIANG ; Yunfeng ZHOU ; Xiaolei SUN ; Haitao ZHU ; Renfu CHEN ; Ping QU ; Xiaoqing SUN
Chinese Journal of Urology 2015;36(11):865-868
Objective To investigate the application efficacy of disposable circumcision stapler with compound lidocaine cream combined with lidocaine injection in the circumcision.Methods From September 2013 to November 2014,120 cases (11 cases of redundant prepuce phimosis patients), were divided into disposable circumcision suture group (S group, 60 cases) and conventional circumcision (T group, 60 eases) ,two groups had no statistically significant difference at patient age and wrapping case (6 cases phimosis of S group,5 cases phimosis of T group) (P >0.05.Patient's age ranged from 11 to 49 years.30 patients in each group were treated with lidocaine cream combined with lidocaine injection,and another 30 patients were treated with a local anesthetic lidocaine injection.Comparisons were conducted among the four groups on the operation time, anesthesia, intraoperative and postoperative pain score, blood loss and postoperative complications, postoperative appearance satisfaction, wound healing time.Results For the disposable circumcision stapler with lidocaine cream combined with lidocaine injection group, disposable circumcision stapler with lidocaine injection group, sleeve circumcision with lidocaine cream combined with lidocaine injection group and sleeve circumcision with lidocaine injection group, the operation time was (5.3 ± 1.5) min, (4.9 ± 1.4) min, (31.6 ± 3.4) min, (32.0 ± 3.3) min respectively, blood loss was (0.6 ± 0.4) ml, (0.8 ± 0.5) ml, (6.9 ± 2.4) ml, (7.5 ± 2.1) ml respectively, narcotic pain score was 0.6 ± 0.6,3.2 ±3.9,2.5 ± 1.0,0.5 ±0.6,intraoperative pain score was 0.8 ±0.9,1.4 ±0.8,2.2 ± 1.1,3.1 ± 1.1,postoperative 24 h pain score was 1.6 ±0.9,2.2 ±0.8,2.6 ± 1.3,4.4 ± 1.1, postoperative 48h pain score was 0.7 ±0.6,0.8 ±0.9,2.4 ±0.8,2.8 ±0.7, wound healing time was (13.7 ±1.5)d,(13.5 ± 1.7)d, (14.2 ± 1.3) d, (14.1 ± 1.6) d, the rate of postoperative complications was 6.6% (2/30), 10.0% (3/30),26.6% (8/30), 33.4% (10/30), satisfaction rate of appearance was 93.4% (28/30), 96.7% (29/30),70.4% (22/30), 80.0% (24/30).Compared with sleeve circumcision with lidocain injection group,disposable circumcision stapler with lidocaine cream combined with lidocaine injection had a shorter operation time, less pain, less bleeding, higher appearance satisfaction rate and lower incidence of complications (P < 0.05), wound healing time had no significant difference (P > 0.05).Conclusion Application of the disposable circumcision stapler with lidocaine cream combined with lidocaine injection on circumcision is safe and has got better clinical outcomes.
7.Effects of medicated serum prepared with Chinese herbal medicine Changweiqing on pharmacokinetics of oxaliplatin in colon cancer cells.
Yong ZHANG ; Xiaowen SUN ; Jianhua XU ; Hai LU ; Zhongze FAN ; Jue SUN ; Xiaoxiao ZHANG
Journal of Integrative Medicine 2012;10(8):901-10
To investigate the effects of Changweiqing-medicated serum, which was prepared with a compound traditional Chinese herbal medicine, on the reversal of oxaliplatin (L-OHP) resistance and the relationship between the reversal and cellular accumulation of platinum and proteins associated with copper transporter in HCT116/L-OHP cells.
8.Esophageal motility characteristics in gastroesophageal reflux disease patients with or without dysphagia
Yichao SHI ; Xiaoxiao WANG ; Jie AI ; Gang SUN ; Weifeng WANG ; Lihua PENG ; Yunsheng YANG
Chinese Journal of Digestion 2016;36(10):676-680
Objective To investigate esophageal motility characteristics in gastroesophageal reflux disease (GERD) patients with or without dysphagia by high-resolution manometry and 24 h esophageal pH monitoring.Methods From August 2012 to November 2015,GERD patients with symptoms of acid reflux and heart burn who received 24 h esophageal pH monitoring were collected.The differences in esophageal motility were further analyzed between the GERD patients with dysphagia and without dysphagia.Student's t test,x2 test and Fisher's exact test were performed for comparison analysis.Results A total of 194 patients received 24 h esophageal pH monitoring and diagnosed as GERD,and at the same period completed esophageal high-resolution manometry.Among them,there were 17 GERD patients (8.8%) with dysphagia and 177 patients (91.2%) without dysphagia.The main classification of esophageal motility disorder of GERD patients with dysphagia was severe esophageal motility disorders (5/ 17),but the motility type of GERD patients without dysphagia patients mainly was mild esophageal motility disorders (10.2%,18/177).The integrated relaxation pressure,residual pressure of lower esophageal sphincter (LES),and contraction range at 3 cm and 11 cm above LES of GERD patients with dysphagia were all higher than those of patients without dysphagia ((9.70±0.98) mmHg (1 mmHg=0.133 kPa) vs (7.02±0.30) mmHg,(12.75±1.35) mmHg vs (9.18±0.42) mmHg,(106.80± 11.97) mmHg vs (70.82±3.48) mmHg,(82.66±10.70) mmHg vs (56.93±3.11) mmHg),and the differences were statistically significant (t=2.601,2.488,2.887,2.308,all P<0.05).Distal esophageal contraction integral score of GERD patients with dysphagia was significantly higher than that of GERD patients without dysphagia ((2 128.94±310.47) mmHg · cm · s vs (1 029.88±90.16) mmHg · cm · s),and the difference was statistically significant (t =3.400,P =0.001).However,residual pressure of upper esophageal sphincter was significantly lower than that of patients without dysphagia ((2.84±1.21) mmHg vs (6.18±0.38) mmHg,t=-2.650,P=0.009).Conclusions Esophageal motility disorder of GERD patients with dysphagia is severer than that of patients without dysphagia.High resolution esophageal manometry can provide objective evidence of esophageal dynamics of GERD patients,which can guide the diagnosis and treatment of GERD.
9.The relationship between polymorphisms of N-acetyltransferase 2 genes and anti-tuberculosis drug induced hepatic-injury
Mei GUO ; Yonghong SUN ; Shiming LI ; Dong WANG ; Qian LIU ; Xiying ZHANG ; Xiaoxiao LIU ; Fumin FENG
Chinese Journal of Infectious Diseases 2010;28(2):99-102
Objective To investigate the relationship between polymorphisms of N-acetyltransferase 2(NAT2)genes and anti-tuberculosis drug induced hepatic-injury(ADIH).Methods A 1:1 matched case-control study was conducted.One hundred and six cases fulfilling the criteria of ADIH were selected as ADIH group from the patients who received anti-tuberculosis therapy.whereas those patients without any hepatic inj ury related elinical symptoms during three months of follow-up period were selected as control.The genetic polymorphisms of the loci,NAT2481C/T,NAT2-590G/A and NAT2-857G/A,were determined by polymerase chain reaction and restriction fragment length polymorphism technique(PCR-RFLP)in patients who received antituberculosis therapy.The major environmental factors and genotypes were analyzed by univariate and multivariate conditional Logistic analyses.Results The T,AA allele frequencies of NAT2-481C/T,NAT2-590G/A and NAT2-857G/A were 7.5%,28.8%and 17.9%respectively in ADIH group,and 6.6%,18.9%and 17.5%,respectively in the control group.Univariate analysis demonstrated that the frequency of NAT2 slow acetylation genotype in ADIH group was significantly higher than that in control group with a crude OR(95%CI)of 2.250(1.140-4.441).Among 6 potential risk factors,i.e.education level,occupation,body mass index(BMI),smoking,drinking and the type of tuberculosis,the low BMI and drinking were two risk factors for ADIH.In multivariate analysis,ADIH remained associated with acetylation genotype after adjusting for BMI and drinking status.The adjusted OR(95%CI)was 2.246(1.086-4.644).Conclusion NAT2 slow acetylation genotype may be associated with the occurrence of ADIH.
10.Study of collagen sponge extracts on mouse splenic lymphocyte transformation in vitro.
Shifu WU ; Chenghu LIU ; Li HOU ; Xiaoxia SUN ; Xiaoxiao GAI ; Yanping SHI
Chinese Journal of Medical Instrumentation 2014;38(4):308-311
Immunogenicity for medical devices of animal origin is the key and difficult point during immune safety evaluation for these devices. This paper firstly investigated the effect of collagen sponge of animal origin on mouse splenic lymphocyte transformation and proliferation, and then analyzed the influence factors on the MTT method and CFSE method. The results showed that collagen sponge extract cannot significantly induce transformation and proliferation of mouse splenic lymphocyte in vitro.
Animals
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Cells, Cultured
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Collagen
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pharmacology
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Lymphocyte Activation
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drug effects
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Mice
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Porifera
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chemistry
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Spleen
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cytology