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| 1 | Effects of Tetrandrine and QYT on ICAM-1 and SOD gene expression in pancreas and liver of rats with acute pancreatitis显示文摘AIM: Available experimental evidence from both clinical andanimal models shows that both Chinese medicines tetrandine(Tet) and Qing Yi Tong (QYT) have positive treatment effectson acute pancreatitis (AP). This investigation was conductedto explore the treatment mechanisms of Tet and QYT on APat the molecular level and thereby explain their therapeuticaffects. It included an invest igation of the effects of thesedrugs on gene expression of both intercellular adhesionmolecule 1 (ICAM-1) and superoxide dismutase (Mn-SODand Cu, Zn-SOD) in a rat model with ARMETHODS: AP in the test rats was induced by subjectingthem to laparotomy followed by a retrograde injection of 4 %sodium taurocholate into the bilio-pancreatic duct. The testrats with AP were divided into three groups. One was treatedwith Tet, one with QYT, and one with normal saline solution.The sham-operated control group (SO) rats were only subjectedto laparotomy. They were given no further treatment. For theTet group, Tet was injected intraperitoneally, and for the QYTgroup, QYT was given with a nose-gastric catheter. Theseprocedures were done at both 10 min and 5 h after APinduction. The levels of ICAM-1 mRNA expression and ofSOD (Mn-SOD and Cu, Zn-SOD) mRNA expression in thepancreas and liver tissues were measured by RT-PCR at 1,5, and 10 h after AP induction.RESULTS: When compared with the SO group during theobservation time, rats with AP showed a higher expressionof ICAM and a lower expression of Mn-SOD in both pancreasand liver tissues, and a lower expression of Cu, Zn-SOD inthe pancreas. Tet treatment attenuated changes in theexpression of both ICAM-1, and SOD (Mn-SOD and Cu, Zn-SOD) to a significant degree. A similar effect on theexpression of SOD (Mn-SOD and Cu, Zn-SOD) was also foundin the QYT group, but no obvious suppressive effect onICAM-1 expression was observed.CONCLUSION: The results of this study suggest that oneof the main mechanisms of Tet and QYT in treating AP is toenhance anti-oxidation of the body. The results also suggestthat the anti-inflammatory effect of Tet is involved in thereduction of ICAM-1 expression. This explains why Tet andQYT are beneficial in treating AP. | Yong-YuLi Xue-LiLi Cui-XiangYang HongZhong HongYao LingZhu | 2003 | World Journal of Gastroenterology2003，9，1： | 13 |
| 2 | Preparation of xanthan-derived oligosaccharides and their hydroxyl radical scavenging activity显示文摘 | Shengjun Wu Jinhua Wu Lingzhu Xia | 2013 | Carbohydrate Polymers2013，92，2： | 1 |
| 3 | Presence of circulating tumor cells is associated with metabolic-related variables in postoperative patients with early-stage breast cancer显示文摘Objective:Although circulating tumor cells(CTCs)have been well-established as promising prognostic biomarkers in both early breast cancer and metastatic settings,little is known regarding the prognostic relevance of CTCs in the long-term postoperative monitoring of patients with non-metastatic breast cancer(non-MBC).In this study,we investigated the associations of CTCs with clinicopathological features and metabolic-related variables,such as obesity and hyperglycemia.Methods:In this retrospective study,we recruited 264 patients with postoperative stage Ⅰ–Ⅲ breast cancer at Guangdong General Hospital from January 2009 to December 2015.The prevalence and number of CTCs were assessed using the Cell Search System at a median time of 19.0 months[interquartile range(IQR),7.8–33.0]after surgery.The CTC assay results were correlated with the clinicopathological features and metabolic-related variables.A multivariate logistic regression analysis was performed to further determine the independent predictors of CTCs.Results:CTCs were detected in 10.6%of all patients.The positive rate of CTCs in patients with infiltrating ductal carcinoma was lower than that in patients with other pathological types(9.0%vs.28.6%,P=0.020).More importantly,the presence of CTCs was correlated with blood glucose level(P=0.015)and high-density lipoprotein level(P=0.030).The multivariate logistic regression analysis showed that the pathological type[odds ratio(OR):1.757,95%CI:1.021–3.023;P=0.042]and blood glucose level(OR:1.218,95%CI:1.014–1.465;P=0.035)were independent predictors of the presence of CTCs.Conclusions:This study revealed potential associations between CTCs and metabolic-related factors in Chinese patients with non-MBC and supports the hypothesis that metabolic dysfunction in breast cancer patients might influence the biological activity of metastatic breast cancer,leading to a higher prevalence of CTCs. | Yumei Shi Guochun Zhang Yulei Wang Chongyang Ren Lingzhu Wen Wenzhen Zhu Xiaoqing Chen Ning Liao | 2018 | Chinese Journal of Cancer Research2018，30，3： | 1 |
| 4 | Induction of apoptosis in lung cancer cells by isorhamnetin显示文摘AIM The aim of the present study was to explore cytotoxic activity and the mechanism of tumor cell killing by isorhamnetin and to investigate the effect of isorhamnetin on tumor growth, cell prolification and apoptosis in transplantation tumor of lung cancer of Lewis cell line in C57BL/6 mice. METHODS Human A549 cells were treated with 10-320(g/ml isorhamnetin, C57BL/6 mice were subcutaneously inoculated Lewis cells 0.2ml/each (1×107cells/ml) below the right forelimb armpit and were treated with 50 (g/ml isorhamnetin isorhamnetin.The results were observed and analyzed under light-microscope, electronic microscopy, growth inhibition was analyzed by MTT, clonogenic asssays and growth curve;the apoptosis and the expression-associated genes peaks were detected with flow cytometry (FCM), DNA fragmentation, single cell gel electrophoresis (comet) assay, | LingZHU Li-mingZHOU Chun-leiYANG Zun-zhenZHANG JingXIAO Zheng-rongWANG | 2005 | 中国药理通讯2005，22，2： | 0 |
| 5 | Tbx 4 and Tbx 5 gene expression associated with appendage development and its relationship with the absence of the pelvic fin in Pampus argenteus显示文摘The Tbx family is first known through the study of their functions in the body and limbs,and its members Tbx4 and Tbx5 genes are important factors in determining the characteristics of the appendages.Pampus argenteus is one of the important economical marine fishes widely distributed in offshore areas.Therefore,it is necessary to study the role of Tbx family genes in the deletion of pelvic fin in P.argenteus.In this study,we cloned Tbx4 and Tbx5 cDNA sequence of P.argenteus(GenBank:MH709128 and MH712458).The Western blot and real time PCR were used to detect the expressions of Tbx4 and Tbx5 in different developmental stages and tissues of P.argenteus.In addition,whole-mount in-situ hybridization was used to study the localization of Tbx4 and Tbx5 genes in different developmental stages of P.argenteus.Results show that the translation of Tbx4 mRNA was inhibited during the critical period of pelvic fin development.Among different tissues,Tbx4 protein levels were the lowest in the abdominal epithelium,and even lower than that in the pectoral fin,suggesting that the protein expression was also inhibited in the abdominal epithelium of adult P.argenteus.Therefore,the results indicated that upstream genes regulation led to the key stage-specific and low expression of Tbx4 during pelvic fin development and in the abdominal epithelium. | Shun ZHANG Xiaojing ZHU Lingzhu HU Kai LIAO Shanliang XU Danli WANG Chunyang GUO | 2024 | Journal of Oceanology and Limnology2024，42，2： | 0 |
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