کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6117658 | 1591768 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Azithromycin and ciprofloxacin: A possible synergistic combination against Pseudomonas aeruginosa biofilm-associated urinary tract infections
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
میکروبیولوژی و بیوتکنولوژی کاربردی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Azithromycin and ciprofloxacin: A possible synergistic combination against Pseudomonas aeruginosa biofilm-associated urinary tract infections Azithromycin and ciprofloxacin: A possible synergistic combination against Pseudomonas aeruginosa biofilm-associated urinary tract infections](/preview/png/6117658.png)
چکیده انگلیسی
Biofilm formation is becoming a predominant feature in nosocomial infections. Since biofilms are increasingly resistant to antibiotics, making monotherapy ineffective, combination therapy appears to be relevant for their eradication. This study assessed the potential of azithromycin (AZM) and ciprofloxacin (CIP) alone and in combination in vitro and in a mouse model of urinary tract infection (UTI) induced with biofilm cells of Pseudomonas aeruginosa. In vitro antibacterial and antibiofilm activities of antibiotics alone and in combination were assessed using the fractional inhibitory concentration index (FICI), time-kill analysis and confocal laser scanning microscopy (CLSM). In vivo efficacy was evaluated in a UTI model by quantitation of bacterial burden in kidney and bladder tissue, renal histopathology, pathology index factors (MDA and NO), and pro-inflammatory (MIP-2 and IL-6) and anti-inflammatory (IL-10) cytokines. MICs of AZM and CIP for strain PAO1 were 256 and 0.5 μg/mL, respectively; MBECs were 4096 and 1024 μg/mL. Synergistic interaction was observed between AZM and CIP both against planktonic and biofilm bacteria (FICI < 0.5). The combination was also able to inhibit biofilm formation (at MIC levels) as observed with CLSM. Oral therapy with AZM (500 mg/kg) and CIP (30 mg/kg) combination in mice for 4 days showed accelerated clearance of bacteria from kidney and bladder tissue, improved renal histopathology, decreased levels of MDA and NO, significant decline in MIP-2 and IL-6, and increased IL-10 in the kidney (P < 0.0001). We conclude that AZM + CIP therapy holds promise against biofilm-associated UTIs as it confers antibacterial, immunomodulatory and anti-inflammatory effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Antimicrobial Agents - Volume 45, Issue 4, April 2015, Pages 359-367
Journal: International Journal of Antimicrobial Agents - Volume 45, Issue 4, April 2015, Pages 359-367
نویسندگان
Hina Saini, Sanjay Chhibber, Kusum Harjai,