1.Multi-glycosidorum triptery suppresses production of interleukin-4 by splenocytes in oxazolone-induced murine colitis
Ying HAN ; Gang CHEN ; Yingxin SONG
Chinese Journal of Digestion 1998;0(06):-
Objective To investigate the in vitro effect of multi glycosidorum triptery (MGT) on cytokine production by splenocytes of oxazolone (OXZ) induced colitis in murine model. Methods Six mg of OXZ (in 50% of ethanol) was administered in male SJL/J mice intrarectally to induce colitis and mice were sacrificed 3 days later. Isolated splenocytes were cultured for 24 hours in the presence of PMA and ionomycin, MGT of 0.1 mg/ml or 0.01 mg/ml was added to the culture medium of splenocytes. Production of IFN ? and interleukin 4 (IL 4) in the supernatant was measured by ELISA. Results The production of IFN ? was suppressed by both 0.01 mg/ml and 0.1 mg/ml of MGT [normal control ( 1.24 ? 0.13 ) pg/ml→(0.97?0.26) pg/ml→(0.87?0.18) pg/ml, P
2.Efficacy and safety of dapoxetine in the treatment of premature ejaculation.
Xiao-yu CHEN ; Ying-wei QU ; Suo-gang WANG
National Journal of Andrology 2016;22(5):411-414
OBJECTIVETo evaluate the clinical effect and safety of dapoxetine in the treatment of premature ejaculation (PE).
METHODSWe randomly assigned 116 PE patients to receive dapoxetine on demand at 30 mg qd (dapoxetine group, n = 60, aged 23-49 years) or oral tamsulosin at 20 mg qd (control group, n = 56, aged 24-46 years). After 4 weeks of medication, we compared the clinical global impression of change (CGIC) , PE profile (PEP) scores, intravaginal ejaculation latency time (IELT) , and adverse reactions between the two groups of patients.
RESULTSCompared with the baseline, the IELT was remarkably prolonged after treatment both in the dapoxetine group ([0.86 ± 0.17] vs [4.32 ± 2.23] min, P < 0.05) and the control ([0.88 ± 0.15] vs [4.17 ± 2.26] min, P < 0.05), with no statistically significant difference between the two groups (P > 0. 05). The post-treatment rate of CGIC in the dapoxetine group had no statistically significant difference from that in the control (85.00% vs 82.14%, P > 0.05). In comparison with pre-treatment, the patients of both the dapoxetine and control groups showed dramatically improved scores after medication in perceived control over ejaculation (0.85 ± 0.23 vs 2.13 ± 0.97 and 0.88 ± 0.21 vs 2.06 ± 0.34, both P < 0.05), ejaculation-related personal distress (1.15 ± 0.64 vs 2.89 ± 0.26 and 1.19 ± 0.53 vs 2.82 ± 0.69, both P < 0.05), satisfaction with sexual intercourse (0.81 ± 0.33 vs 2.58 ± 0.37 and 0.79 ± 0.28 vs 2.45 ± 0.32, both P < 0.05), and ejaculation-related interpersonal difficulty (2.05 ± 0.61 vs 3.24 ± 0.35 and 2.03 ± 0.65 vs 3.18 ± 0.76, both P < 0.05), with no significant differences between the two groups (P > 0.05). The incidence of adverse reactions was significantly lower in the dapoxetine than in the control group (3.33% vs 30.36%, P < 0.05).
CONCLUSIONDapoxetine is effective for the treatment of PE, with its advantages of prolonging the intravaginal ejaculation latency time, improving the quality of sexual life, and low incidence of adverse reactions.
Adult ; Benzylamines ; administration & dosage ; therapeutic use ; Coitus ; Double-Blind Method ; Ejaculation ; Humans ; Male ; Middle Aged ; Naphthalenes ; administration & dosage ; therapeutic use ; Patient Satisfaction ; Premature Ejaculation ; drug therapy ; Serotonin Uptake Inhibitors ; administration & dosage ; therapeutic use ; Sexual Behavior ; Sulfonamides ; administration & dosage ; therapeutic use ; Treatment Outcome ; Young Adult
3.Influence of lidocaine on systemic inflammation in perioperative patients undergoing cardiopulmonary bypass
Chuanbin SUN ; Libo CHEN ; Ying CHENG ; Gang FEANG ; Weixing ZHANG
Journal of Peking University(Health Sciences) 2003;0(06):-
Objective: To investigate the influence of lidocaine on systemic inflammation in the perioperative ventricular septal defect (VSD). Methods: Twenty patients, scheduled for ventricular septal defect were randomly divided into 2 groups: lidocaine and control groups. Before rebeat lidocaine 1 mg/kg was given.The venous blood samples were obtained from the central venous at the following points: after induction of anesthesia and before cardiopulmonary bypass(CPB,T1),1 h after CPB(T2),2 h after CPB(T3), and 4 h after CPB(T4). IL-6 and IL-8 were determined by radio-immunoassay. Results: Compared with those at T1, the levels of white blood cells,polymorphonuclear neutrophils,IL-6 and IL-8 increased significantly from T2 to T4 in both groups. IL-6 and IL-8 levels reached the peak at T2. Compared with those in control groups, IL-6 level decreased obviously in lidocaine group from T2 to T4, but IL-8 level remained unchanged significantly. Conclusion: Under CPB and VSD repair the systemic inflammation is obvious, reaches the peak 30 min after CPB and persists to 4 h after CPB. Perioperative administration of lidocaine is effective against the inflammation.
4.Transport efficiency and safety evaluation by process management during the handover of patients with tracheal intubation post-operation
Ying PU ; Ying ZHANG ; Gang CEN ; Yueli TONG ; Qi RUAN ; Yinzhen CHEN ; Fang FANG
Chinese Journal of Practical Nursing 2015;31(28):2138-2140
Objective To evaluate transport efficiency and safety by process management during the handover of patients with tracheal intubation post-operation. Methods Prospective studies were performed between patients with or without process management during the handover. The time of handover were recorded and compared. The difference between systolic and diastolic blood pressure, heart rate, and arterial oxygen saturation were also recorded and compared. The adverse events during the handover were also investigated. Results It costed less time in the handover of patients under process management with significant difference[(4.75±0.54) min vs. (7.05±0.88) min, t=-17.21, P<0.01]. The incidence rate of harmful cases in the handover of patients under process management was significantly declined than that without process management[ 1.67%(1/60) vs. 13.33%(8/60),Χ2=4.324 3,P<0.05 ]. Conclusions Process management may facilitate the handover of patients with tracheal intubation post-operation and improve its safety.
5.Analysis of correlation factors between peripapillary duodenal diverticulum and choledochectasia by CT scan
Weifeng YING ; Qiong CHEN ; Gang WANG ; Ming LU ; Kun YU ; Yuyu HOU ; Xin PAN ; Ying ZHANG
Chinese Journal of Postgraduates of Medicine 2021;44(3):225-229
Objective:To analyze the correlation factors between peripapillary duodenal diverticulum (PDD) and choledochectasia by CT scan.Methods:The clinical data of 220 patients with duodenal diverticulum detected by multi-slice spiral CT scan and confirmed by gastrointestinal angiography or endoscopic retrograde cholangiopancreatography (ERCP) in Dahua Hospital, Xuhui District of Shanghai City were retrospectively analyzed. The correlation of the PDD, the contact of common bile duct (CBD), length of contact and exudation with choledochectasia in patients with PDD were analyzed.Results:A total of 236 duodenal diverticulum were found in 220 patients. Among them, there were 152 PDD, 41 diverticulum located superior to the duodenal papilla, 28 diverticulum located inferior to the duodenal papilla, 3 diverticulum located lateral to the duodenal papilla, and 12 diverticulumlocated in the horizontal portion. The incidence of choledochectasia in patients with PDD contacted with CBD was significantly higher than that in patients with PDD not contacted with CBD: 59.35% (73/123) vs. 37.93% (11/29), and there was statistical difference ( P<0.05); the incidence of choledochectasia in patients with contact length of PDD and CBD ≥1.5 cm was significantly higher than that in patients without contact of PDD and CBD and patients with contact length of PDD and CBD <1.5 cm: 82.43% (61/74) vs. 24.49% (12/49) and 37.93% (11/29), and there was statistical difference ( P<0.05); the incidence of choledochectasia in PDD patients with exudation was significantly higher than that in PDD patients without exudation: 10/11 vs. 52.48% (74/141), and there was statistical difference ( P<0.05). Conclusions:The patients with contact length of PDD and CBD ≥1.5 cm and patients with PDD combined with exudation could be prone to choledochectasia.
6.Application value of contrast-enhanced ultrasound combined with time-intensity curve to identify benign and malignant orbital neoplasms
Gang BAI ; Wenwei CHEN ; Bin SUN ; Liao CHEN ; Ying KANG ; Ji CHEN
Chinese Journal of Ultrasonography 2013;(1):63-66
Objective To explore the value of ultrasound-enhanced ultrasound (CEUS) in the differential diagnosis of orbital neoplasms by observing the perfusion characteristics of orbital benign and malignant neoplasms for the application of ultrasound contrast microbubbles.Methods Preoperative ultrasound imaging of 47 patients with orbital neoplasms(benign group 35 cases,malignant group 12 cases)were observed for the tumor characteristics of CEUS.The parameters of tumor imaging obtained time intensity curve (TIC) were obtained by quantitative analysis of SonoLiver analysis software,which were contrast agent arrive time (AT),rise time (RT),time to peak (TTP),mean transit time (mTT),area under the curve (AUC),maximum intensity(IMAX) and perfusion index (PI).Results Different characteristics of perfusion were shown between benign and malignant groups.Time parameters of TIC:rising slope,semidescending slope,IMAX,PI,mTT,semi-washed out time and RT were significantly different between the two groups (P < 0.05) while there was no significant difference of parameters as AT,TTP,AUC.Conclusions There is certain clinical value of the CEUS in the differential diagnosis of ocular benign and malignant neoplasms.
7.HO-1 overexpression induced by CoPP in donors can prolong the survival of transplanted allogeneic islets of rats
Ling HOU ; Zhuzeng YIN ; Ying XIANG ; Junhua LI ; Shi CHEN ; Gang CHEN ; Xiaoping LUO
Chinese Journal of Organ Transplantation 2009;30(4):211-214
Objective To investigate the effects of the overexpression of HO-1 induced by CoPP in the donor on the survival of transplanted allogeneic islets of rats and the mechanism.Methods (1) Brown Norway rats were randomly divided into control group, and CoPP-induced group receiving intraperitoneal injection of CoPP (2.5 mg/kg) at 3rd and 1st day prior to islet isolation.By using the cytoimmunofluorescenee and Western blot, the expression of HO-1 in isolated islets was detected.The insulin level in the supernatant of the cultured islets stimulated with glucose was determined by ELISA.(2) Lewis male rat diabetic models were established by a single intravenous injection of alloxan, and then randomly divided into CoPP group and control group.Islets were transplanted under the left kidney capsule of each diabetic recipient.The survival time after transplantation, and pathological changes following rejection of the islet grafts were analyzed.Results The HO-1 was highly expressed in the islets isolated from CoPP-treated rats by cytoimmunofluorescence and Western blot.After stimulation with 16.7 mmol/L glucose, the insulin concentration in Copp-treated and Copp-untreated groups was (46.60± 1.13) and (19.01 ± 1.49) mIU/L respectively (P<0.05).The insulin concentration in Copp-treated and Copp-untreated groups in islets stimulated with 5.6 mmol/L glucose was (15.65 ± 0.89) and (12.28 ± 0.89) mU/L respectively (P>0.05).The stimulated index in Copp-treated and Copp-untreated groups was (2.98 ± 0.10) and 1.55 + 0.01 respectively (P< 0.05).The survival time of islets allograft in Copp-treated and Copp-untreated groups was separately (12.20±5.67) and (5.60± 1.14) days respectively (P<0.05).Histological analysis revealed the presence of more islands of insulin-positive cells and considerably fewer lymphocytes or inflammatory infiltration than the controls.Conclusions CoPP could induce the HO-1 expression of islets, and improve their function.Over-expression of HO-1 in islets could prolong survival time of islets allograft.
8.Application of flow cytometry to detect natural specific antibody levels in human ABO blood group
Chi ZHANG ; Xiaowei GUO ; Ying XIANG ; Qing WEI ; Shi CHEN ; Gang CHEN
Chinese Journal of Organ Transplantation 2011;32(1):24-27
Objective To establish and validate a standard method using flow cytometry (FCM)in human ABO blood group antibody (Ab) detection. Methods Sera samples from 52 blood donors were incubated with standardize red blood cells (RBCs), and anti-A/B antibody (IgM/IgG) was measured by indirect flow cytometry after adding secondary isotype-specific fluoresce labeled Ab. The results were compared with those by using ELISA reader. Results The changes of anti-A/B IgM measured by both methods correlated well and an overall correlation coefficiency of 0.730 for IgM was obtained by Spearman's rank testing (P<0.05). FCM showed better specificity, sensitivity and reproducibility over ELISA reader. In blood group A samples (n = 16) or B samples (n = 16) ,the antirespectively. IgG blood group Ab could only be detected in blood group O sera. Conclusion Compared with traditional methods,FCM is a more objective method to offer accurate detection of natural ABO blood group Ab (IgM/IgG) and allowed semi-quantitative measurement of antibody levels.
9.Preventive and therapeutical effects of N-acetylcysteine on selenite-induced cataract in vivo
Guang-ying, ZHENG ; Hua-jun, WANG ; Nan, TAN ; Gang, CHEN ; Yuan-yuan, LIANG
Chinese Journal of Experimental Ophthalmology 2012;30(6):515-519
Background The mechanism of both selenite-induced cataract and age-related cataract is oxidative damage.N-acetylcysteine (NAC) is one of the effective antioxidants,but the literature is little about the preventive and treating effects of NAC on cataract. Objective This study attempted to investigate the preventive and therapeutical effects of NAC on the selenite-induced cataract,and to discuss the possible mechanism. Methods Sixty 10-day-old clean SD rats were randomly divided into normal control group-1,normal control group-2,selenite-induced cataract group,NAC preventive group,NAC+normal saline group and NAC treatment group.Selenite cataract models were induced by subcutaneous injection of 3.46 mg/kg sodium selenite once daily for three days.The rats of NAC preventive group received the intraperitoneal injection of 2 mmol/L NAC 30 minutes before the injection of sodium selenite once daily for 6 days.In NAC treating group,2 mmol/L NAC was intraperitoneally injected 1 day after the injection of sodium selenite for 30 days,and the normal saline solution was injected at the same method in the NAC+normal saline group.Lens opacification was graded according to LOCS Ⅲ criteria.Histopathological change of lens epithelium was examined under a light microscope after hemotoxylin and eosin staining,and the ultrastructure was observed under the scanning electron microscope.The expression of caspase-3 in lens was assayed using immunochemistry.The levels of superoxide dismutase ( SOD ),malonaldehyde ( MDA ) in rat lens were detected respectively in corresponding time points.The use of the experimental animals complied with the Regulation for the Administration of Affairs Concerning Experimental Animals by State Science and Technology Committee. Results In 7 days after experiment,lenses were completely clear in the normal control group.Lens opacification of Ⅴ grade was found in 11 eyes in selenite cataract model group,but no lens opacification of Ⅴ grade was seen in NAC preventive group,showing a significant difference(x2 =40.000,P<0.05 ).In 30 days after experiment,Ⅳ- Ⅴ grades of cataracts were found in 20 eyes both in NAC + normal saline group and NAC treating group (x2=0.153,P> 0.05 ).Histopathological examination showed that lens structure was normal,and the separation between LECs and anterior capsule,the rupture of cellular membrane,deformation of cellular nuclei and the feature of lens fiber were seen in selenite cataract group,but the damage of lens was mild in the NAC preventive group.Ultrastructure of lens was obviously abnormal in selenite cataract group,NAC+normal saline group and NAC treating group.Expressions of caspase-3 and SOD in lens were significantly lower,but that of MDA was significantly higher in the selenite cataract group than the normal control group (P<0.05) ;while those of the NAC preventive group were significantly different from selenite cataract group(P<0.05).No significant difference was found in the expressions of caspase-3 and the levels of SOD and MDA between NAC+normal saline group and NAC treating group (P>0.05 ). Conclusions Selenite can induce the apoptosis of LECs.NAC can evidently postpone formation of selenite cataract by increasing the activity of SOD,decreasing the level of MDA and the expression of caspase-3.However,NAC could not reverse selenite-induced lens damage.
10.Establishment of biology reference interval of NSE in cerebrospinal fluid
Yanfei CAO ; Gang CHEN ; Lina ZHANG ; Xiupeng DONG ; Xiaonan KOU ; Ying CUI ; Xiuhua CAO
International Journal of Laboratory Medicine 2015;(10):1321-1322,1324
Objective To establish the reference intervals of neuron specific enolase (NSE) in tumor markers in cerebrospinal fluid .Methods According to National Committee for Clinical Laboratory Standards document C 28‐A2 ,120 samples were collected to establish reference intervals .Then ,the established intervals were evaluated according to China National Accreditation Service for Conformity Assessment document CL38 :2012 .Results The biological reference interval of NSE in cerebrospinal fluid was 0-3 .14 ng/mL .There was no significant correlation between cerebrospinal fluid NSE level and age ,sex (P> 0 .05) .Conclusion Method used in this study could be ensured reliable ,accurate ,scientific and practical ,desirable for clinical requirement and with great poten‐tial for clinical application .