Objective To study the effect of laparoscopic surgery on the quality of life in patients with middle and low rectal cancer.Methods 108 cases with middle and low rectal cancer in accordance with the number table,were randomly divided into two groups.54 patients in the observation group were operated through laparoscopic surgery and 54 patients in the control group received traditional open surgery.The patients were followed up for 6 months,the patients' quality of life were assesed.Results The operative time,blood loss and length of hospital stay in the observation group were less than the control group (P ＜ 0.01).The lymph node dissection between the two groups had no significant difference(P ＞0.05).47 patients in the observation group were rectal sphincter preservation,the rate was 87.0％,37 patients in the control group with rectal sphincter preservation,the rate was 68.5 ％,the difference between the two groups was significant (x2 =4.92,P ＜ 0.05).The patients'quality of life after surgery in two groups was increased than before surgery,and the observation group increased more significantly than the control group(P ＜ 0.05).Conclusion Laparoscopic surgery can significantly improve the quality of life in patients with middle and low rectal cancer.

Objective]To summarize professor SHEN Hong’s clinical experience in treating ulcerative colitis with enema prescription.[Method] By following the teacher clinic and sorting out the related cases, the author summarizes professor SHEN Hong’s academic experience of treatment of ulcerative colitis with enema prescription, and for proven cases. [Result]On the base of disease stage, Professor SHEN Hong uses the advantages of external therapy of Chinese medicine, and combines the syndrome differentiation and disease differentiation by the reference to the treatment of abscess,carbuncle. On the acute stage, he uses the elimination method to relieve heat and toxic material, cool blood and eliminate carbuncle. On the remission stage, he uses reinforcing method to support sore and drainage of pus and heal wound and promote tissue regeneration in case of recrudescence. Meantime, he focuses on the different locations of lesions by reasonable enema ways. The medication he uses is concise and the prescription changes flexibly with permitted addition and subtraction. The clinical curative effect is satisfactory. [Conclusion] Professor SHEN Hong’s experience is effective and worthy of inheritance and promotion.

Objective To study the relationship between receptor interacting protein (RIP)1 and hepatocyte necropto?sis in isoniazid (INH) induced mouse model. Methods Kunming male mice were randomly divided into three groups. Con?trol group (C) received 0.3 mL of normal saline one time per day. INH group (INH) was injected intraperitoneally INH 100 mg/kg body weight, one time per day. Nec-1+INH group was injected intraperitoneally Nec-1 in 0.1%DMSO and 1 mg/kg body weight one time/12 hours, and INH was injected intraperitoneally at the same dose with that of INH group. All animals were treated for 7 days. Pathological changes of liver tissues were studied by HE staining. RIP1 expression was detected by immunohistochemical, Western blot and real-time PCR analysis. Levels of malondialdehyde (MDA), reactive oxygen species (ROS), glutathione (GSH) and superoxide dismutase (SOD) in liver homogenate were determined by colorimetric method. Re?sults Hepatocytes were arranged orderly in C group. The degeneration and necrosis of hepatocytes were found in Nec-1+INH group, and severe degeneration and necrosis of hepatocytes were found in INH group. Compared with C group, the ex?pression levels of RIP1, ROS and MDA were increased significantly, and the expression levels of GSH and SOD were de?creased significantly in INH group (P<0.05). INH-induced acute liver necroptosis was significantly alleviated after treat?ment with Nec-1. Compared with INH group, the expression levels of RIP1, MDA and ROS were significantly decreased, and the expression levels of GSH and SOD were significantly increased in Nec-1+INH group (P<0.05). Conclusion These re?sults suggest that RIP1 is involved in INH-induced hepatocyte necroptosis in mice. The inhibition of RIP1 expression might be a treatment strategy for prohibition of INH-induced acute liver necroptosis.

Objective To observe and compare the efficacy and safety of implantation of tissue expanders adjacent to or under keloid tissues for large keloids on anterior chest. Methods Between Mar 2006 and June 2009, a total of 17 patients with large keloid lesions on anterior chest received treatment with 21 tissue expanders,among which 12 were placed under the normal skin adjacent to keloids, and 9 were inserted under the keloid lesions. The scar size varied from 4.5 cm × 3.0 cm to 15.7 cm × 5.5 cm. The capacity was 70 to 400 ml for expanders adjacent to the keloid tissue, 80 to 500 mi for those beneath the keloid tissues. After tissue expansion for 6 to 8 weeks, the expander was removed and keloid lesions were resected followed by the repair of defect with expanded flaps. Further more, the patients received intraoperative local intradermal injection of betamethasone and postoperative superficial electron beam irradiation with divided doses of 7 Gy in 3 consecutive days within 1 week after the surgery. Follow-up varied from 12 to 50 months. Results Twenty expanders, except 1expander pocket which was removed ahead of time due to infection, were implanted successfully during the whole course of treatment. The main complication was expander exposure in 4 patients, including 1 expander adjacent to the keloids and 3 under keloid lesions, which showed no significant influence on secondary operation. Fifteen patients reported relief of symptoms and achieved satisfactory outcomes, while 2 patients, including 1 treated with expanders adjacent to the keloids and 1 with expanders under the keloid tissue, showed great suture tension and experienced delayed stitch removal followed by the recurrence of keloids after the operation.Conclusions The implantation of tissue expanders under the adjacent normal skin or keloid lesions is an ideal treatment option for large keloids on anterior chest. Regional suture tension is a direct contributor to the recurrence of keloid formation after surgical excision.

Objective:To investigate the affects of NOD2 on rapamycin (Rap)induced autophagy and on the proliferation and mi-gration of tongue squamous carcinoma SCC-1 5 cells.Methods:① Synthesized NOD2 over-expression plasmid and NOD2-shRNA were transfected into SCC-1 5 cells respectively.②Normal control SCC-1 5 cells,NOD2 over-expression cells and NOD2-shRNA cells were treated with Rap to induce autophagy.Then,the expression of LC3 and Beclin-1 was examined by Western blot.Cell pro-liferation was tested by MTT assay.Cell migration was assessed by wound healing assay.Results:①After Rap treatment,the expres-sion of protein LC3-Ⅱand Beclin-1 in NOD2 over-expression cells increased(P <0.05)and in NOD2-shRNA cells were suppressed (P <0.05).② Compared with control group,the proliferation and migration ability were decreased in NOD2 over-expression cells (P <0.05),but in NOD2-shRNA cells the proliferation and migration ability were increased(P <0.05).Conclusion:NOD2 can up-regulate the autophagy and suppress the proliferation and migration of tongue squamous SCC-1 5 cells.

To establish and manage of multicentral collection bio-sample banks of malignant tumors from digestive system, the paper designed a multicentral management system, established the standard operation procedures (SOPs) and leaded ten hospitals nationwide to collect tumor samples. The biobank has been established for half a year, and has collected 695 samples from patients with digestive system malignant tumor. The clinical data is full and complete, labeled in a unified way and classified to be managed. The clinical and molecular biology researches were based on the biobank, and obtained achievements. The biobank provides a research platform for malignant tumor of digestive system from different regions and of different types.
Biological Specimen Banks ; organization & administration ; Digestive System ; pathology ; Humans ; Neoplasms ; Specimen Handling

Objective To investigate the expression of resistin in rats of acute pancreatitis and the relationship between its expression and pancreatic pathologic changes. Methods Forty Sprague-Dawlev rats were randomly divided into four groups:control group,sham operation group,AEP group and ANP group. AEP model was induced by intraperitoneal injection of cerulein and ANP model was induced bv intrapefitoneal injection of L-arginine while the control group received no treatment,and the sham operation grouD rleceived same volume injections of 0.9%saline solution.The serum amylase,C-reactive protein,TNF-alpha.IL-1 beta were determined by using ELISA,pancreas/body weight(g/kg)ratio was recorded,pancreatic pathology was examinated,the expression of resistin mRNA and protein in pancreas was detected by real-time PCR and immunohistochemistry. Results The levels of amylase,pancreas/body weight ratio.pancreatic pathology score,expression of resistin mRNA,IL-1-beta,TNF-alpha and C-reactive protein in AEP group were(4377±343)U/L,8.67 ±1.43,5.39 ±0.26,2.04 ±0.19,(10.21 ±1.34)ng/ml,(184.18±45.24)pg/ml, (194.24 ±44.81)pg/ml,(3586±63)ng/ml,respectively;and the corresponding value8 in ANP group were (6750±322)U/L.9.33±1.76,7.81±0.28,3.29±0.30,(15.14±0.84)ng/ml,(349.31±94.54)pg/ml,(315.59±37.04)pg/ml,(4345±244)ng/ml,respectively;which were significantly higher than(1442±183)U/L,4.34±0.42,1.10±0.21,0.88±0.08,(5.13±0.74)ng/ml,(108.74±31.03)pg/ml,(106.44±21.31)pg/ml,(2895±165)ng/ml in sham operation group(P<0.01 or P<0.05).Resistin wag positively correlated with the increase of C-reactive protein,TNF-alpha,IL-1 beta and the pathologic score of pancreas,respectively(r=0.711,0.812,0.794,0.812,P<0.01).Conclusions Resistin was correlated with the pathogenesis and development of acute pancreatitis,and may be useful to predict the severity of acute pancreatitis.

Objective To investigate the effect of Epigallocatechin-3-gallate(EGCG)on oxidative stress and inflammatory factors in the kidney tissues of rats with paraquat poisoning,and explore the possible mechanism. Methods Rats were randomly divided into control group(group A), paraquat exposure group(group B),paraquat exposure+low dose of EGCG group(group C),and paraquat exposure+high dose of EGCG group (group D)(n=10 in each group). Kidney tissues were harvested and observed by HE staining. The level of creatinine was tested by biochemical detector. Serum oxidative stress and inflammatory factor level were detected by ELISA method. Oxidative stress in kidney tissue was determined by Western blotting and colorimetry. Inflammatory factor level in renal tissue was tested by real-time PCR. Results Kidney damage was observed in rats of groups B,C,and D. Rats in groups C and D showed less renal injury than group B,and high dose of EGCG(group D)enhanced kidney damage compared to the low dose(group C). Compared with group A,rats in the groups C and D showed lower level of 8-isoprostane,creatinine, interleukin-6(IL-6),and tumor necrosis factorα(TNF-α)in serum and malondialdehyde(MDA),3-nitrotyrosine(3-NT),and TNF-αand IL-6 mRNA in renal tissue in rats with paraquat poisoning,and group D showed the lowest mRNA level of inflammatory factor and oxidative stress. Con-clusion EGCG has protective effects on the kidney of rats with paraquat poisoning,and its mechanism may be related to the reduction of oxida-tive stress and inflammatory reaction in the kidney.

Purpose To assess the clinical and pathological features of small gastrointestinal stromal tumours (sGIST).Methods To reevaluated the clinical,histological and immunohistochemical parameters of 21 sGISTs.The standard immunohistochemical panel antibodies were studied on the tumor sections.All data were compared with clinical sGIST.Results There were a total of 7 females and 14 males of sGISTs.The median age was 63 years old.The tumors were predominantly located in the stomach showing a spindle cell morphology and the tumor sizes ranged from 0.5 cm to 1.5 cm.9 sGISTs combined with malignant tumors,which were gastric cancer have been incidentally detected during surgery.As the lesions were small in size,with infrequent bleeding,necrosis,mucosal invasion,ulceration and less mitotic index,sGISTs reoccurred less compared with clinical sGIST.p53,Ki-67 labeling index and microvascular density (MVD) in sGIST were significantly lower than clinical sGIST (P ＜ 0.05).Conclusion sGIST may occure with digestive tract cancer synchronously.p53,Ki-67 labeling index and MVD were lower than clinical GIST,which means better prognosis.

Objective:To explore the effects of NOD2 gene on the proliferation and apoptosis of tongue squamous cell carcinoma Tca8113 cells.Methods:NOD2 expression vector(NOD2-pEZ-M29)and NOD2-shRNA vector were established,then were trans-fected into Tca8113 cells respectively.Expressions of HBD-2 and NOD2 in the cells was detected by RT-PCR and Western blot.Cell proliferation was examined by MTT assay and apoptosis by flow cytometry at 48h post transfection.Results:Compared with the control group,the expression of NOD2 and HBD-2 in NOD2-pEZ-M29 transfection group was significantly higher and markedly lower in NOD2-shRNA group.The proliferation rate of Tca8113 cells was markedly lower in NOD2-pEZ-M29 transfection group and signifi-cantly higher in NOD2-shRNA group while the apoptosis rate was significantly higher in NOD2-pEZ-M29 transfection group and sig-nificantly lower in NOD2-shRNA group.Conclusion:In Tca8113 cells NOD2 expression was positively correlated with HBD-2 ex-pression.NOD2 gene may promote the apoptosis,inhibit the proliferation of Tca8113 cells.