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  • Title: Experimental protection of diabetic mice against Lethal P. aeruginosa infection by bacteriophage.
    Author: Shivshetty N, Hosamani R, Ahmed L, Oli AK, Sannauallah S, Sharanbassappa S, Patil SA, Kelmani CR.
    Journal: Biomed Res Int; 2014; 2014():793242. PubMed ID: 24999476.
    Abstract:
    The emergence of antibiotic-resistant bacterial strains has become a global crisis and is vulnerable for the exploration of alternative antibacterial therapies. The present study emphasizes the use of bacteriophage for the treatment of multidrug resistant P. aeruginosa. P. aeruginosa was used to induce septicemia in streptozotocin (STZ) induced diabetic and nondiabetic mice by intraperitoneal (i.p.) injection of 3 × 10(8) CFU, resulting in a fatal bacteremia within 48 hrs. A single i.p. injection of 3 × 10(9) PFU phage GNCP showed efficient protection in both diabetic (90%) and nondiabetic (100%) bacteremic mice. It was further noted that the protection rate was reduced in diabetic mice when phage GNCP was administered after 4 h and 6 h of lethal bacterial challenge. In contrast, nondiabetic bacteremic mice were rescued even when treatment was delayed up to 20 h after lethal bacterial challenge. Evaluation of results confirmed that a single intraperitoneal injection of the phage dose (3 × 10(9) PFU/mL) was more effective than the multiple doses of imipenem. These results uphold the efficacy of phage therapy against pernicious P. aeruginosa infections, especially in cases of immunocompromised host.
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