1.Protective effects of Cyclopamine in adjuvant arthritis rats kidney injury and mechanism research
Xianbing SONG ; Meimei LIU ; Mei AN ; Anning FANG ; Xiaoyu CHEN ; Junqiang ZHANG
Chinese Journal of Immunology 2016;32(9):1276-1281,1290
Objective:Observed activity of adjuvant arthritis ( AA) rats Hedgehog signaling pathway and explore the effect of Cyclopamine on rat arthritis and kidney injury.Methods:40 rats were randomly divided into control group,Cyclopamine group,AA+Cyclopamine group and AA model group.We used Freund′s complete adjuvant rat model with Cyclopamine intraperitoneal injection.By measuring paw swelling, systemic inflammation and arthritis semi-quantitative assessment methods of rats to evaluate the model.HE staining was used to detect the renal pathological changes of rats.Western blot was used to detect kidney Gli1 protein expression levels of the rats.Immunohistochemical staining was used to detect the rat kidney TNF-α,IFN-γ,IL-6 expression.Results:After using Cyclo-pamine,the AA rat paw swelling reduced and arthritis refers relieved significantly.Compared with the control group,Cr,BUN and organ coefficient increased significantly in AA model group, and the difference was statistically significant.Meanwhile renal TEM detection appeared obvious pathological changes in rats of AA model group.After using cyclopamine,the content of Cr,BUN and organ coefficient change reduced significantly, so did the pathological.Western blot detected kidney tissue Gli1 protein in each group.Compared to control group,there was no significant difference in Cyclopamine group.AA model group and AA+Cyclopamine group Gli1 protein expression was significantly higher compared with Cyclopamine Gli1 protein group,the difference was statistically significant.AA model group and AA Cyclopamine group Gli1 protein expression was significantly higher,the difference was statistically significant.Compared to the AA model group,AA+Cyclopamine group Gli1 protein levels have decreased significantly,the difference was statistically signifi-cant.Immunohistochemical assay detection found that kidney tissue proinflammatory cytokines TNF-α,IFN-γ,IL-6 expression and semi-quantitative score changed.Compared with the control group, TNF-α, IFN-γexpression of AA model group were significantly increased.After using Cyclopamine,the expression of TNF-α,IFN-γin kidney of AA model reduced significantly.IL-6 expression in AA model group was significantly higher than the control group.Conclusion:Cyclopamine AA can relieve arthritis and kidney injury in rats with arthritis AA,the Hh pathway was on activity state in the process,may altered expression of inflammatory factors.
2.Construction of an evaluation index system of public health emergency preparedness capacity in county-level centers for disease control and prevention
GAO Lijuan ; JING Qi ; ZHENG Wengui ; WU Fang ; DUAN Mingxue ; MA Anning
Journal of Preventive Medicine 2023;35(8):659-664
Objective:
To construct an evaluation index system of public health emergency preparedness capacity in county-level centers for disease control and prevention (CDC), so as to provide the evidence for improving the public health emergency preparedness capacity in county-level CDC.
Methods:
An index system framework was created based on review of health emergency policies, laws and regulations released in China from 2003 to 2023. The importance, sensitivity and accessibility of indicators were scored and screened through two rounds of Delphi expert consultations, and the weights of indicators were calculated using precedence charts. The efficiency of Delphi expert consultations was evaluated using the active coefficient, authority coefficient and coordination coefficient.
Results:
Eighteen experts participated in consultations, including 9 men, 15 with educational levels of master degree and higher, 12 with preventive medicine or public health as the specialty, and 12 with deputy senior professional titles and higher. The active coefficients of two rounds of consultations were 100.00% and 94.44%, and the authority coefficients were 0.83 and 0.84, respectively. The coordination coefficients of secondary and tertiary indicators during the second round consultation were 0.341 and 0.241, which were both higher than those during the first round (both P<0.05). The final evaluation index system included 8 primary indicators, 21 secondary indicators and 58 tertiary indicators. Among primary indicators, health emergency organization and management (0.203 1), health emergency team building (0.203 1) and financial support for health emergency (0.203 1) had the highest weights, and of secondary indicators, completion degree of health emergency administration regulations (initial weight/global weight: 0.750 0/0.152 3), health emergency team building (0.750 0/0.152 3) and financial support for emergency (0.750 0/0.152 3) had the highest weights, while among tertiary indicators, defining the duty of health emergency administration sectors had the highest weight (0.750 0/0.114 2).
Conclusion
The created evaluation index system is feasible for evaluation of the public health emergency preparedness capacity in county-level CDC.
3.Influence of antiviral therapy with telbivudine on serum soluble complement receptor type 1 in patients with chronic hepatitis B or liver cirrhosis
Fang WANG ; Zuohua QUAN ; Xingkun YANG
Journal of Clinical Hepatology 2016;32(6):1118-1120
ObjectiveTo investigate the changes in serum soluble complement receptor type 1 (sCR1) at 3 and 6 months after antiviral therapy with telbivudine in patients with chronic hepatitis B (CHB) or liver cirrhosis and the influence of telbivudine on serum sCR1 level. MethodsA total of 57 patients with HBeAg-positive CHB or liver cirrhosis were enrolled and given the antiviral therapy with telbivudine. Venous blood was collected before treatment and at 3 and 6 months after treatment, and enzyme-linked immunosorbent assay was used to measure serum sCR1 level. The paired t-test was used for comparison within one group. ResultsAt 3 and 6 months after the antiviral treatment with telbivudine, the serum sCR1 level changed significantly compared with corresponding baseline values (t=4.864 and 6.238, both P<0.05). The patients with CHB or liver cirrhosis showed significant changes in the serum sCR1 level at 3 and 6 months after treatment compared with corresponding baseline values (t=3425,5468,4047,7378 all P<0.05). The patients with CHB had a lower serum sCR1 level at baseline and at 3 and 6 months after treatment than those with liver cirrhosis, but the serum sCR1 level at each time point showed no significant differences between the two groups (all P>005). ConclusionIn patients with HBeAg-positive CHB or liver cirrhosis, serum sCR1 level is reduced significantly after antiviral therapy with telbivudine.
4.Research Advances of Calcium-and Integrin-binding Protein 1 in Tumors.
Acta Academiae Medicinae Sinicae 2017;39(5):721-726
Calcium-and integrin-binding protein 1(CIB1),a member of calcium binding protein containing EF-hand domain,has been shown to bind a variety of signaling proteins. Interaction of CIB1 with its various binding partners provides valuable insight into potential mechanisms by which CIB1 may regulate diverse tumors characteristic biological process that range from adhesion,migration,cell survival,proliferation,and angiogenesis. CIB1 has also been implicated in both the increase and decrease of cell proliferation.CIB1 promoted cell proliferation and survival by adjusted tumor-associated extracellular regulated protein kinases 1/2(ERK1/2),phosphatidylinositol 3 kinase(PI-3K)/v-akt murine thymoma viral oncogene homolog-dependent signaling pathway,or increased cell migration by activating Src family kinases,protein kinase C,PI-3K,and ERK 1/2-mediated signaling pathway.CIB1 inhibited cell proliferation through inhibiting polo-like kinases 3(PLK3) activity.It also inhibits cell migration by binding to and activating p21-activated kinase 1. Especially a large subset of triple-negative breast cancer may display non-oncogene addiction to CIB1,a phenomenon in which cancer cells require,or become 'addicted' to a non-mutated,non-overexpressed gene/protein that is nonetheless essential to maintain oncogenic signaling pathways,and implicate CIB1 as a novel drug target in tumors. Additionally,CIB1 plays a role in such pathological processes as cardiac hypertrophy,deafness,and male infertility. Research on CIB1 function has important clinical significance. In this review,we discussed current understanding of CIB1 in human tumors.