Objective:To observe the biological behaviors of colorectal cancer LS174 cells before and after pcDNA3.0-hugl-1 transfection,so as to investigate the association of hugl-1 with colorectal cancer.Methods:The eukaryotic expression vector pcDNA3.0-hugl-1 was constructed and transfected into LS174 cells.RT-PCR and Western blotting methods were used to analyze the expression of hugl-1 mRNA and protein in LS174 cells before and after transfection.Soft agar colony formation assay,wound-healing experiment,adhesion assay and Matrigel invasion assays were used to study the effects of hugl-1 expression on the proliferation,adhesion,movement and invasion in LS174 cells.Results:The recombinant plasmid pcDNA3.0-hugl-1 was successfully constructed.RT-PCR and Western blotting showed that the hugl-1 expression was higher in cells transfected with pcDNA3.0-hugl-1 than in those un-transfected or empty vector-transfected cells (P

Objective To observe the effects of cinepazide maleate and nimodipine in improving the neurological function in patients with hypertensive cerebral hemorrhage after microtraumatic craniopuncture.Methods Seventy-eight patients with hypertensive cerebral hemorrhage were randomly divided into 2 groups,cinepazide maleate group (39 patients)and nimodipine group(39 patients).After 3 days operated with the microtraumatic craniopuncture,cinepazide maleate group used the amount 160mg cinepazide maleate mixed with sodium chloride injection(500ml,concentration 0.9%),and the nimodipine group uesd nimodipine(4mg)mixed with the same injection.Both the patients of the 2 groups were given intravenous drip once a day,then after continuous 14 days,the general information and the improvement of nerve were observeed.Results The total improvement rate and the improvement rate of nervous symptom was 87.2%and 61.5%respectively,in comparison,the nimodipine group was 64.1%and 39.9%.Conclusion Cinepazide maleate was better than nimodipine in improving chnical symptoms and the neurological deficit of the patients with hypertensive cerebral hemorrhage after microtraumatic craniopuncture.

1. 5 cm) sessile colorectal polyps referred for EMR. After submucosal injection of epinephrine, either en bloc or piecemeal snare polypectomy were performed. All resected specimens were retrieved for pathologic study. Follow-up colonoscopy was performed in all patients after EMR. Results All 157 polyps were removed completely. All lesions are larger than 1. 5cm, but 3 less than 1 cm on the submucosa of rectum. The largest one is 13 cm X 12 cm. No complication occurred. Histopathologic assessment of the resection specimens revealed the following: adenoma, 123; dysplasia, 80; mucosal carcinoma, 11; hyperplastic polyps, 20; rectal carcinoid, 3. Two patients who had rectal adenoma that was larger than 7cm recurrence happened at the resection site after 1 and 3 months follow-up respectively, than removed completely by hot biopsy forceps showed hyperplastic and villous adenoma on pathological study. No more residual tumor was detected for 6-12 months. Conclusion EMR with an intensive follow-up program is a safe and effective treatment for large sessile colorectal polyps and mucosal carcinoma.

Aim To investigate the effects of irbesartan on Wnt/β-catenin signaling pathway in tubular epithelial-mesenchymal transition(EMT)in HKCs induced by high-glucose.Methods Human kidney proximal tubular epithelial cell line(HKCs)cultured in vitro was divided into four groups:normal-glucose group,mannitol control group,high-glucose group and high-glucose plus irbesartan group.Immunocytochemistry staining was used to observe the expression of β-catenin;the protein expression of Wnt4,β-catenin,E-cadherin and α-SMA was assessed by Western blot;Wnt4 and β-catenin mRNA were detected by reverse transcription-polymerase chain reaction(RT-PCR).Results Compared with normal-glucose and mannitol control group,both the protein and the mRNA of Wnt4 were up-regulated in HKCs stimulated by high-glucose.α-SMA expression significantly increased but E-cadherin decreased in HG group.The cytoplastic and nuclear fraction of β-catenin enhanced with highglucose stimulation.But no difference of the total protein and mRNA of β-catenin was observed between highglucose-treatment and control groups.Highglucose induced Wnt4 and β-catenin expression in a time-dependent manner,both peaking at 24 h.Irbesartan reduced the promotional effect of HG on Wnt4 and α-SMA expression,and nuclear translocation of β-catenin.HG-mediated inhibition of E-cadherin was also restored by irbesartan.Conclusion These data supported a functional role for Wnt/β-catenin signaling pathway during epithelial-mesenchymal transition of HKCs induced by high glucose and suggested that irbesartan might reverse tubular EMT by regulating activity of Wnt/β-catenin pathway.

Glycyrrhiza uralensis Fisch. ex DC is widely used in traditional Chinese medicine (TCM). Among its various active components, glycyrrhizic acid is believed to be the marker component. Squalene synthase (SQS) and beta-amyrin synthase (beta-AS) are key enzymes in the biosynthetic pathway of glycyrrhizic acid in G uralensis. To reveal the effects of co-expression of SQS1 and beta-AS genes on this pathway, 7 yeast expression vectors harboring different SQS1 variants and beta-AS were constructed and expressed in Saccharomyces cerevisiae as fusion proteins. TLC and GC-MS results showed that co-expression of SQS1 and beta-AS enhanced the accumulation of beta-amyrin. The effects of SQS12 were more obvious than the other two SQS1 variants. This study is significant for further investigations concerned with exploring the biosynthesis of glycyrrhizic acid in vitro and strengthening the efficacy of G. uralensis by means of increasing the content of glycyrrhizic acid.

OBJECTIVE To study the methods and curative effects of reconstruction of oropharyngeal defects after resection of tonsillar cancer. METHODS Nineteen patients with tonsillar cancer underwent operation. The choice of surgical procedure was decided on the size of the lesions. The tumor was resected through the hyoid approach and mandibular swing approach. Surgical defects were repaired immediately with tongue flap, temporalis myofascial flap, pectoralis major myocutaneous flap. RESULTS The functions of respiration, chewing, deglutition, and speech were restored satisfied in all patients. Partial necrosis of the pectoralis major myocutaneous flap occurred in one patient, and mild difficulty of open mouth in 3 patients after repaired with temporalis myofascial flap. CONCLUSION Choosing what is optimum from multiple feasible surgical methods is prerequisite for better oropharyngeal function and quality of life in patients with tonsillar cancer.

Objective To evaluate the number of lymph node harvested during radical resection of invasive rectal carcinoma(stage Ⅰ toⅢ).Methods From January 2000 to June 2008,the pathological data of colorectal carcinoma patients who were operated on were retrospectively reviewed.Exclusion criteria included recurrent colorectal tumor,Tis tumor,R1 or R2 resection,tumor resection transanally or endoscopically,synchronous diseases affecting the surgical procedure for the reetal cancer(familial adenomatous polyposis.synchronous coloreetal carcinoma)and rectal cancer receiving perioperative neoadiuvant chemoradiation.Statistical analysis was performed using Mann-Whitney Test and Chi-Square Test (SPSS 15.0).Results were expressed as mean±SEM.Results A total of 2282 patients were identified.including 1216 cases in the rectal carcinoma group and 1066 cases in the colon carcinoma group.There were no significant difference in gender(719/1216 vs.593/1066,P=0.092)and overall TNM stage (P=0.067)between the two groups.But patients of rectal cancer were younger(58.6±0.4 vs.62.0±0.4.P=0.000).The lymph node retrieval in the rectal carcinoma group was significantly less than that of colon carcinoma group(9.4±0.1 vs.10.5±0.1,P=0.000).There were significantly less rectal cancer patients with a 1ymph node harvest equal to or more than 12 nodes(P=0.000).Patients in the low rectal cancer group(≤7 cm from the anal verge.n=834)had less lymph nodes harvested than the mid-high rectal cancer group(＞7 am and≤15 cm from the anal verge.n=382)(9.2±0.1 vs.9.9±0.2,P=0.009).Conclusion The lymph node harvest in the rectal carcinoma group was significantly less than that in the colon carcinoma group.A new standard may be necessary to define the adequate number of lymph nodes for rectal cancer.

Objective To observe effectiveness of Chinese herbal fumigation therapy combined with six-step knee-release massage on patients with knee osteoarthritis. Methods 80 cases with knee osteoarthritis were randomly divided into a treatment group and a control group, 40 in each. The treatment group was given Chinese herbal fumigation therapy combined with six-step knee-release massage, while the control group was treated only by six-step knee-release massage. 20 days of treatment was considered as 1 course, after which major symptoms and signs were observed and X-ray examination was applied to determine the curative effect. Results① As for clinical effectiveness, the total effective rate was 92.5%in the treatment group and 70%in the control group. There was statistical difference between two groups(χ2=11.087, P<0.01). ② HSS scores showed that , except quadriceps strength(t=2.082, P>0.05),there was statistical difference in terms of pain, functionality, motion, fixed deformity, stability, subtractions and total score between two groups(t values were 8.081, 10.977, 3.846, 9.450, 9.611, 9.450, 15.984 respectively, P<0.01). Conclusion Chinese herbal fumigation therapy combined with six-step knee-release massage could effectively relieve clinical symptoms like joint pain, morning stiffness and inflexibility. It is worth popularizing in clinical treatment of knee osteoarthritis.

Objective To explore the clinicopathologic factors impacting recurrence and survival in rectal cancer patients after radical resection.Methods Clinicopathologic data of 1 166 patients with rectal cancer in Changhai Hospital,were recruited between 2005 and 2010.Kaplan-Meier analysis and the logrank test were used to evaluate the effects of the pathology on patients' survival.Cox regression model was used to assess independent factors associated with clinical prognosis.Results The 1,3,5-year overall survival rates were 94.3％,81.2％ and 76.5％,median survival time was 53 months.328 patients had recurrence and metastases,with a median recurrence time of 18 months.The independent prognostic factors for overall survival time were CEA,CA19-9,tumor distance to dentate line,surgical modality,radical operation,tumor invasion,tumor differentiation,lymph node metastasis and postoperative treatment.Surgical treatment,radical operation or not,tumor invasion and lymph node metastasis were statistically significant associated with tumor recurrence and metastases.Conclusions The important factors inffuencing the prognosis of rectal cancer patients were CEA,CA19-9,tumor distance to dentate line,surgical modality,radial operation,tumor in vasion,tumor differentiation,lymph node metastasis,and post operative treatment.

Soluble tumor necrosis factor-related apoptosis-inducing ligand (sTRAIL) is potentially a novel anti-cancer drug due to its superior selective cytotoxicity in a wide variety of tumor cells. Zinc ion (Zn2+) insufficiency might be an important cause for weak cytotoxicity of sTRAIL prepared by gene engineering. In this paper, the sTRAIL protein is highly-expressed with insertion of the synthesized gene encoding sTRAIL into pQE30 plasmid. The polymerization and cytotoxicity in tumor cells of sTRAIL prepared in presence of different concentrations of Zinc ions were compared. It was found that the sTRAIL protein prepared in absence of Zinc ions mainly existed as monomer with weak cytotoxicity. However, in the presence of Zinc ions, sTRAIL formed homotrimer and showed strong cytotoxicity in tumor cells. These results demonstrate that Zinc ion is very important for cytotoxicity of sTRAIL. It is necessary for keeping stable activity of sTRAIL by addition of proper concentration of Zinc ion in the media.
Antineoplastic Agents ; metabolism ; pharmacology ; Breast Neoplasms ; pathology ; Cell Line, Tumor ; Female ; Humans ; Lung Neoplasms ; pathology ; Polymerization ; drug effects ; Recombinant Proteins ; metabolism ; pharmacology ; TNF-Related Apoptosis-Inducing Ligand ; genetics ; metabolism ; Zinc ; pharmacology