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Chongqing Medicine ; (36): 1287-1289, 2014.
Artigo em Chinês | WPRIM | ID: wpr-448260

RESUMO

Objective To explore the bacteriostatic efficacy of snake venom antibacterial peptide OH-CATH and chitosan as ar-tificial implant coating on escherichia coli (E .coli) .Methods The catheters and dacron patches (blank group ,chitosan group ,cef-operazone group and antibacterial peptide group) were performed the pretreatment .Then the in vitro bacteriostatic test was conduc-ted to evaluate the antibacterial activity U value on E .coli ATCC 25922 and cephalosporin-resistant E .coli on 1 d and on 7 d after putting it into plasma .Results The cefoperazone group and the antibiotic peptide group had the very powerful antibacterial activity on E .coli ATCC 25922 on 1 ,7 d ,but the antibacterial activity of the cefoperazone group was stronger than that of the antibiotic peptide group(P<0 .05);the cefoperazone group had no antibacterial activity on cephalosporin-resistant E .coli ,but the antibiotic peptide group had significantly antibacterial activity on 1 ,7 d(P<0 .01) .Conclusion Snake venom antibacterial peptide OH-CATH has very obvious antibacterial effect on the standard strain and drug-resistant strain of E .coli and its value applied in artificial im-plant coating is affirmed .

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