Methods: We used GWAS hits, additional loci identified by SVM approach and known drug targets together with the open access databases to construct a disease network. We then analysed the network using Graph theoretical approaches. Results: An integrated network

of relevance to UC biology has been constructed. Graph selleck inhibitor theoretical properties of the known drug targets have been analysed and used as a template to identify novel drug targets. Conclusion: Network construction with varied data resources holds promise for identification and characterization of high order gene-gene interactions with implications for understanding disease biology and also for identifying potential drug targets. Key Word(s): 1. SVM; 2. drug targets; Presenting Author: MIN CHEN Additional Authors: WENFENG YAN, JIN LI Corresponding Author: JIN LI Affiliations: Zhongnan hospital; China Objective: To study whether high homocysteine could aggravate the intestinal inflammatory in rat of DSS-induced colitis; And to explore whether homocysteine would activate the Th17 cells to increase the rat’s gut reaction. Methods: The rat colitis model was induced by dextran sodium sulfate (DSS), and hyperhomocysteinemia (HHcy) model was induced by 1.7% methionine. There were

4 groups in total: control group, DSS group, HHcy group and DSS + HHcy group. The degree of inflammation in rat intestinal tissue was evaluated by DAI and histology. The plasma homocysteine and IL-17 levels were detected by Enzyme-linked immunosorbent assay (ELISA) rat. MCE公司 The IL-17 protein level of the rats intestinal tissue was measured RG7420 supplier by Western blot technique. Results: Compared with the

DSS group, the levels of plasma homocysteine (514.213 ± 34.99 vs 1860.995 ± 32.12, p < 0.05) and IL-17 (124.080 ± 2.80 vs 183.957 ± 2.98, p < 0.001) was significantly higher in the DSS + HHcy group; And the activity of MPO (1.333 ± 0.024 vs1.537 ± 0.015 P < 0.001), DAI and the pathological score were also significantly higher. The level of IL-17 protein expression of intestinal tissue (0.525 ± 0.013 vs ± 0.658 ± 0.009, p < 0.05) was significantly increased in the HHcy + DSS group. Conclusion: Hyperhomocysteinemia could aggravate the intestinal inflammation in DSS-induced colitis rats; 2. Homocysteinemay worsen the intestinal inflammation via activate the Th17 cells. Key Word(s): 1. IBD; 2. Homocysteine; 3. Th17cell; 4. IL-17; Presenting Author: CHEN BAILI Additional Authors: LV SUCONG, HE YAO, ZENG ZHIRONG, GAO XIANG, HU PINJIN, CHEN MINHU Corresponding Author: CHEN MINHU Affiliations: The First Affiliated Hospital of Sun Yat-Sen University Objective: To investigate the endoscopic and pathological features of Crohn’s disease (CD). To identify different pathological features according to different depths of biopsy.