Two Zn(Ⅱ)-based Coordination Polymers : Treatment Activity on Chronic Periodontitis by Inhibiting the Relative Expression of the Porphyria gingivalis Survival Gene

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  • Zhang Xiao-Na
    Department of Stomatology, Jincheng People’s Hospital
  • Du Rui
    Department of Periodontology, Qingdao Stomatological Hospital

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  • Two Zn(II)-based Coordination Polymers: Treatment Activity on Chronic Periodontitis by Inhibiting the Relative Expression of the <i>Porphyria gingivalis</i> Survival Gene

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<p>Two mixed-ligand complexes on the basis of L ligand [L = 3,6-bis(imidazol-1-yl)pyridazine] have been prepared under the solvothermal reaction conditions via the Zn(II) salts reacting with the ligands of L in the existence of two positional isomerous carboxylic acid ligands and their chemical formula respectively are [Zn5(L)(1,2-BDC)4(μ3-OH)2] n (1, 1,2-H2BDC = 1,2-benzenedicarboxylic acid ) and {[Zn4(L)2(1,3-HBDC) (1,3-BDC)(μ3-OH)4]·ClO4·3H2O} n (2, 1,3-H2BDC = 1,3-benzenedicarboxylic acid). The inhibitory influence of the two compounds against the inflammatory response in periodontium was evaluated by measuring the inflammatory cytokines releasing with ELISA detection kit. The results of ELISA assay indicated that compound 1 showed much stronger inhibitory influences than compound 2 against the inflammatory cytokines releasing. In addition to this, the suppression activity of the compounds against the survival gene of Porphyria gingivalis was detected via the real time Reverse Transcription-Polymerase Chain Reaction, and the results suggested that compound 1 could evidently suppresses the survival gene expression of Porphyria gingivalis, which is much better than the biological activity of compound 2. Above all, compound 1 was more outstanding than compound 2 on chronic periodontitis treatment by inhibiting the Porphyria gingivalis survival.</p>

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