1.Diagnosis and treatment of intestinal obstruction caused by multiple jejunal diverticula
Zhibin ZHANG ; Dongyin LI ; Chuan GU
Chinese Journal of General Surgery 2014;29(7):524-526
Objective To evaluate the diagnosis and therapy of intestinal obstruction caused by multiple jejunal diverticula.Methods Clinical data of intestinal obstruction caused by multiple jejunal diverticula in 18 cases admitted from Jan 2001 to Aug 2012 were analyzed retrospectively.Results All patients experienced the symptoms of abdominal pain and abdominal distension,5 cases experienced nausea and vomit,2 cases had a fever.Plain abdominal X-ray series demonstrated distension of small bowel and multiple air-fluid levels,5 cases with anemia,the average value of hemoglobin was (9.5 ± 1.0) g/L,B-ultrasonography revealed bowel dilatation in 7 out of 15 cases,9 cases underwent abdominal computed tomography and all had positive sign of small bowel distension and multiple air-fluid levels,mesenteric volvulus was suspected in 1 case.All patients underwent laparotomy,the diagnosis of multiple jejunal diverticula were confirmed clinically and by the pathology.In a follow-up ranging from 2 to 25 months,1 case died,the others were symptoms free.Conclusions Multiple jejunal diverticula was a less common disorder,occurring mainly in old man,with a low preoperative definite diagnosis.Resection of affected intestinal segment with primary anastomosis results in satisfactory prognosis.
2.Ventral bladder mucosa onlay graft urethroplasty for the treatment of panurethral stricture
Chuan HAO ; Zhenli ZHAO ; Chengyong LI ; Yuzhuo LI ; Yong GU
Chinese Journal of Urology 2016;37(3):195-198
Objective To investigate the efficacy of ventral bladder mucosa onlay graft urethroplasty for the management of panurethral stricture.Methods From August of 2005 to July of 2013,11 cases of panurethral stricture were treated by ventral bladder mucosa onlay graft urethroplasty.The median age of the patients was 53 years (22-72 year),The median stricture length was 15 cm (12-18 cm).The patient was placed in the lithotomy position,Penile urethra was exposed by circumcoronal incision and degloving of skin,Bulbar urethra was exposed by inverted Y-shaped perineal incision.The strictured urethral segment was then opened ventrally in the midline up to at least 1 cm proximally into the healthy urethra.An appropriate size bladder mucosa graft was harvested,and was quilted to the splited urethra edge,the graft width was 1.5-2.0 cm.Two F10 fenestrated silicone catheters were left as urethral stents,a suprapupic cystostomy tube was left.The urethral stent was removed 4 weeks postoperatively.Follow-up was performed every 3 months for the first year,and annually thereafter.Success was defined as normal voiding with a maximum flow rates ≥ 15 ml/s,and the patients required no further instrumentation,including dilation or urethrotomy.Results The mean follow-up was 18 months (range,9-36 months),the overall success rate was 10/11.One patient developed urethral meatus stenosis 3 months postoperatively,and was managed by meatal dilatation.Conclusion Ventral bladder mucosa onlay graft urethroplasty can be used for the management of panurethral stricture,Bladder mucosa is an alternative substitution for complex urethral reconstruction.
3.Clinical study of autologous tumor tissue lysate loading dendritic cells for the treatment of hepatocellular carcinoma
Dongyin LI ; Chuan GU ; Jun MIN ; Zhonghua CHU ; Qingjia OU
Clinical Medicine of China 2008;24(7):693-696
Objective To investigate the feasibility and safety of autologous tumor tissue lysate loading den-dritic cells(DC) for the treatment of hepatocellular carcinoma (HCC). Methods The monocytes-derived DC were induced and antigen loaded with tumor tissue lysate to produce DC vaccine. Vaccination and clinical observation were conducted in 12 HCC patients for 41 times. Results The average output of DC was 1.69×107(1.69×107±9.44×106>) from 90 ml peripheral blood. 63.41% (26/41)patients appeared to develop delayed-type hypersensitivity after intradermal injection. After an average of 9 months follow up, 1 patient out of 4 recurrence and metastasis pa- tients survived for 17 months. The other three patients progressed. Out of 8 patients undergoing immunotherapy post- operatively,6 patients had no signs of recurrence and the others were found to have liver rceurrence and progression. Conclusion DC based immunotherapy is safe and feasible,with no side effects,which can be applied in the immu- notherapy strategy of HCC patients.
4.The maturation induction of human monocyte-derived dendritic cells
Dongyin LI ; Chuan GU ; Jun MIN ; Zhonghua CHU ; Qingjia OU
Chinese Journal of Immunology 1985;0(06):-
Objective:To investigate the most effective strategy for mature induction of dendritic cells.Methods:Human monocyte-derived dendritic cells were induced in the presence of cytokines GM-CSF and IL-4. On day 6, the immature DCs were pulsed with each of CD40L, LPS, TNF-? or a cocktail of cytokines(TNF-?, IL-6, IL-1?, PGE2). DCs were harvested after 24 h induction. The surface markers for maturation CD80,CD83,CD86 and HLA-DR were detected by FCM. FITC-Dextra endocytic activity was measured by FCM. IL-12 production was detected by ELISA. The capacity of DCs for T cell activation was detected by MTT assay.Results:CD40L,LPS,TNF-? and the cocktail of cytokines all could induce DCs’ maturation. The most effective scheme for induction of maturation was the cocktail of cytokines, and the expression rate of CD83 was up to 66.91%(P
5.Effect of GDNF on pancreatic cancer cell proliferation and chemotaxis
Rende GUO ; Jianhua GU ; Wei JIANG ; Jianzhi ZHANG ; Chuan GU ; Qiang LI
Chinese Journal of Hepatobiliary Surgery 2010;16(3):204-207
Objective To investigate the effect of GDNF on pancreatic cancer cell proliferation and chemotaxis.Methods The cell counting, MTT and flow cytometry were employed to investigate whether the neurotrophic factor GDNF can stimulate the proliferation of pancreatic carcinoma cells.Meanwhile, the trans-well invasion chamber was used to observe the chemotactic effect of GDNF on pancreatic cancer cells.Results The cells were exposed to incremental concentrations of human re-combinant GDNF (0-120 ng/mL).We found that the proliferation of pancreatic cancer cells was stim-ulated by GDNF in a dose-dependent manner and the number of cells in "S" phenotype was increased;The count of cells was increased by GDNF in a dose-dependent manner.Conclusion GDNF can stimu-late the proliferation and invasion of pancreatic cancer cells in a dose-dependent manner.
6.Production of VEGF induced by GMCSF via ERK-NF-KB singling 'pathway in human fibroblasts during wound healing
Xiaoguang LI ; Min YAO ; Yong FANG ; Weirong YU ; Peng XU ; Ying WANG ; Chuan GU ; Yi WANG
Chinese Journal of Trauma 2011;27(8):731-736
ObjectiveTo observe production of vascular endothelial growth factor (VEGF) induced by granulocyte/macrophage colony-stimulating factor (GMCSF)via ERK nerve growth factor (NF)-κB singling pathway in human fibroblasts during wound healing and explore relating mechanism.MethodsHuman fibroblasts from the injured skin were used for this study and treated with GMCSF.RT-PCR was used for analyzing the protein and mRNA levels of VEGF and Western blotting was employed to determine the phosphorylation of ERK. The fibroblasts were pre-treated with ERK specific inhibitor PD98059 and further treated with GMCSF, then the fibroblasts and the supernatant were collected for detection of protein level of VEGF by means of Western blot. ERK signal pathway was inhibited to detect the activation of NF-κB by means of immunofluorescence staining. Furthermore, the nuclear and cytoplasmic extraction kit was used to separate the cytoplasm and nucleus and Western blot employed for observation of the NF-κB activation. ResultsThe mRNA level and protein level of VEGF were increased significantly with treatment with higher concentration of GMCSF in a dose-dependent manner. VEGF mRNA level was increased two hours after administration with GMCSF and reached peak at 4-6 hours. GMCSF could remarkably activate the ERK phosphorylation. Compared with GMCSF, the ERK specific inhibitor PD98059inhibited significantly the effect of GMCSF in inducing VEGF expression (P < 0.05). Western blot and immunofluorescence staining analyses showed that the activation of NF-ΚB was inhibited with reduced production of VEGF after GMCSF treatment.Conclusion GMCSF up-regulates production of VEGF through activating NF-κB via ERK signal pathway in the human fibroblasts.
7.Lignans from Patrinia scabra
Tingzhao LI ; Weidong ZHANG ; Zhengbing GU ; Wenyong LIU ; Chuan ZHANG ; Runhui LIU
Chinese Traditional and Herbal Drugs 1994;0(03):-
Objective To study the lignans in Patrinia scabra. Methods The constituents were separated and purified by column chromatographies with silica gel, RP-silica gel, and Sephadex LH-20. Their structures were elucidated on the basis of spectral data (IR, MS, 1H-NMR , 13 C-NMR , DEPT, HMQC and HMBC). Results There were four lignans obtained from P. scabra with the structures identified as pinoresinol-4, 4′-di-O-?-D-glucopyranoside (Ⅰ), and matairesinol-4, 4′-di-O-?-D-glucopyranoside (Ⅱ), lariciresinol-4′-O-?-D-glucopyranoside (Ⅲ), and lariciresinol-4-O-?-D-glucopyranoside (Ⅳ). Conclusion All the four compounds are found in P. scabra for the first time. The NMR data of compound Ⅱ are given first.
8."""No Touch"" ostial cardioplegia delivery for aortic valve replacement"
Chuan WANG ; Chengxiong GU ; Weiguo MA ; Jingxing LI ; Xinsheng HUANG ; Wei SONG
Chinese Journal of Thoracic and Cardiovascular Surgery 2015;31(8):462-465
Objective To summary and explore the indications,safety and effectiveness of no touch ostial cardioplegia delivery method during aortic valve replacement(AVR) for severe aortic insufficiency(AI),in order to provide guidance for clinical application.Methods Between September 2012 and February 2015,63 cases were randomly divided into two groups,in study group we used this technique in 31 patients with a mean age of(58.0 ± 15.0) years and a range of 31 to 74 years old.The degree of AI averaged (3.5 ± 0.5) according to a semiquantitative 5-grade scale[1].32 patients were enrolled in control group with a mean age of(60.4 ± 9.4) years and a range of 22 to 73 years old.The degree of AI averaged (3.6 ± 0.5).The abnormal aortic cusps were sutured though the aortic incision,which would be closed temporarily.Blood cardioplegia was infused repeatedly into the coronary osita through the closed aortic incision during the remainder of the procedure except AVR,when the closed aortic incision was reopened.Results In the study group,spontaneous resumption of nodal and normal sinus rhythm shortly after the removal of aortic cross-clamp was achieved in all patients,no hearts had to be electrically defibrillated and electrocardiogram showed no obvious S-T segment elevation.The time from cross-clamp removal to sinus rhythm was(12.3 ± 7.7) minutes in the study group,versus (18.6 ± 8.2) minutes in the control group(P =0.037).No operative mortality occurred in both groups.There was a significant increase in left ventricular ejection fraction[from(0.54 ± 0.09) preoperatively to(0.62 ± 0.06) postoperatively] (P =0.005) in patients of the study group,which was not seen in patients of the control group.Conclusion Preliminary results have shown that the no touch ostial cardioplegia delivery method is a feasible method for cardioplegia infusion during aortic valve replacement in patients with severe AI.
9.Clinical study on intravenous lidocaine suppressing fentanyl-induced cough
Qi ZHOU ; Shao-Chuan FU ; Nai-Quan MA ; Li CHEN ; Yin-Hong GU ; Chen-Hai WU ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(08):-
Objective To evaluate the effects of different doses of lidocaine on suppressing fentanyl-induced cough and determine a safe suppressing dose.Methods Two hundred patients undergoing general anesthesia were randomized to four groups evenly.The following medications were given within ten seconds:normal saline 10ml (groupⅠ,control group),lidocaine 1 mg/kg (groupⅡ),lidoeaine 1.5 mg/kg(groupⅢ),lidocaine 2mg/kg (groupⅣ).Toxic symptoms of lidocaine were recorded within lmin after the administration of lidocaine,then fentanyl 3?g/ kg was given intravenously within 5 seconds.Cough incidence and cough grade were recorded within 2rain after the administration of fentanyl.Systolic blood pressure (SBP),diastolic blood pressure (DBP),heart rates (HR),and satu- ration of pulse oximeter(SpO2) were recorded during different time points of induction,all recorded data were anal- ysed by the statistical software,P value
10.Estrogen receptor-β expression in laryngeal carcinoma: correlation with the expression of epithelial-mesenchymal transition specific biomarkers.
Lan MU ; Jingcheng GU ; Yongchao ZHANG ; Yan LIANG ; Chuan WANG ; Wang LI
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(10):921-924
OBJECTIVE:
To detect the expression of ERβ in laryngeal carcinoma and the its correlation with the expression of epithelial-mesenchymal transition(EMT) specific biomarkers.
METHOD:
Picture MT-Pv9000 was used to detect ERβ and EMT in 72 cases of human aqueous laryngeal carcinoma and 8 cases of adjacent non-neoplastic laryngeal mucosa by immunohistochemistry.
RESULT:
The positive rates of ERβ in tumors and adjacent non-neoplastic laryngeal mucosa were 27.78% and 25.00%, respectively. The differences were not significant (P > 0.05). The abnormal expression rates of E-cadherin and β-catenin were 61.11% and 76.39% respectively. The expression of ERβ correlated negatively with the loss of E-cadherin, nuclear translocation of β-catenin and increased TNM stage. The differences were significant (P < 0.05).
CONCLUSION
The positive expressions of ERβ suggest a good prognosis in the differentiation, clinical stages and lymphatic metastasis of the laryngeal carcinoma. The underlying mechanism may be related with the abnormal expressions of E-cadherin and β-catenin.
Antigens, CD
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Biomarkers, Tumor
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metabolism
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Cadherins
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metabolism
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Epithelial-Mesenchymal Transition
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Estrogen Receptor beta
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metabolism
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Humans
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Immunohistochemistry
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Laryngeal Neoplasms
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metabolism
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Lymphatic Metastasis
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beta Catenin
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metabolism