تعیین اثر عصاره‌ی اتانولی بره‌موم زنبور عسل بر جدایه‌های باکتریایی با مقاومت دارویی چندگانه‌ی شناسایی شده با روش مولکولی در زخم بیماران بستری در شهر اهواز

نوع مقاله : مقاله های پژوهشی

نویسندگان

1 گروه میکروبیولوژی، واحد فلاورجان، دانشگاه آزاد اسلامی، اصفهان، ایران

2 استادیار، گروه میکروبیولوژی، واحد فلاورجان، دانشگاه آزاد اسلامی، اصفهان، ایران

3 استادیار، گروه باکتری و ویروس‌شناسی، دانشکده‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

چکیده

مقدمه: مقاومت چندگانه‌ی دارویی، یکی از معضلات پزشکی در درمان زخم است. هدف از انجام مطالعه‌ی حاضر، شناسایی مولکولی جدایه‌های باکتریایی با مقاومت چندگانه به دارو در زخم بیماران بیمارستان‌های اهواز و تعیین اثر عصاره‌ی اتانولی بره‌موم زنبور عسل بر روی این باکتری‌ها بود.روش‌ها: تعداد 120 نمونه از اردیبهشت ماه تا تیر ماه 1395 از انواع زخم بیماران در پنج بیمارستان اهواز تهیه شد. جدایه‌های باکتریایی با مقاومت چندگانه‌ی دارویی با روش انتشار دیسک انتخاب شدند و با توالی‌یابی ژن 16SrRNA شناسایی گردیدند. عصاره‌ی اتانولی بره‌موم با روش خیساندن تهیه شد و اثر آن به عنوان یک عامل ضد باکتری بر روی جدایه‌ها با روش‌های انتشار از چاهک و Microdilution تعیین شد.یافته‌ها: جدایه‌ها با مقاومت چندگانه شامل Escherichia coli، Pseudomonas aeruginosa، Acinetobacter baumannii، Staphylococcus aureus، Enterococcus faecalis و Enterococcus faecium از انواع زخم شناسایی و جدا شدند. غلظت 25 میلی‌گرم در میلی‌لیتر عصاره‌ی اتانولی بره‌موم در روش انتشار از چاهک بر جدایه‌های گرم مثبت مؤثر بود. در روش Microdilution، بیشترین حساسیت به عصاره در Staphylococcus aureus (با حداقل غلظت مهار کنندگی 25 و حداقل غلظت کشندگی 50 میلی‌گرم در میلی‌لیتر) و پس از آن در Enterococcus faecalis و Enterococcus faecium (با حداقل غلظت مهار کنندگی 100 و حداقل غلظت کشندگی 200 میلی‌گرم در میلی‌لیتر) مشاهده شد. باکتری‌های گرم منفی نسبت به همه‌ی غلظت‌های عصاره، مقاومت داشتند.نتیجه‌گیری: باکتری‌های گرم مثبت مقاوم به چند دارو که به عنوان موامع درمان زخم شناخته شده‌اند، حساسیت بالایی به عصاره‌ی اتانولی بره‌موم زنبور عسل نشان دادند.

کلیدواژه‌ها


عنوان مقاله [English]

Detection of the Effect of Bee Propolis Ethanol Extract against Molecularly Identified Multiple-Drug Resistant Bacterial Isolates in Wounds of Hospitalized Patients in Ahvaz City, Iran

نویسندگان [English]

  • Aida Eidi-Sheikhrobat 1
  • Nafiseh Sadat Naghavi 2
  • Vajiheh Karbasizadeh 3
1 Department of Microbiology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
2 Assistant Professor, Department of Microbiology, Falavarjan Branch, Islamic Azad University, Isfahan, Iran
3 Assistant professor, Department of Bacteriology and Virology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده [English]

Background: Multiple-drug resistance (MDR) is one of the medical challenges in medicine. The aim of present study was molecular identification of multiple-drug resistant bacterial isolates in wounds of patients in Ahvaz City, Iran, hospitals, and detection of the effect of bee propolis ethanol extract on these bacteria.Methods: 120 samples was obtained from bed, burn, and diabetic foot wounds of patients hospitalized in 5 hospitals in Ahwaz City from May to July 2016. Multiple-drug resistant isolates were selected using disk diffusion method and were identified via sequencing 16SrRNA gene. Propolis ethanol extract was prepared using soaking method and its effect as an antibacterial agent was tested on the isolates by well diffusion and microdilution methods.Findings: 6 multiple-drug resistant isolates including Escherichia coli, Pseudomonas aeruginosa, Acinetobacter baumannii, Staphylococcus aureus, Enterococcus faecium, and Enterococcus faecalis were identified among 25 antibiotic-resistant isolates from different wounds. The concentration of 25 mg/ml of propolis ethanol extract was effective on Gram-positive bacteria in well diffusion method. In microdilution method, the most sensitivity was seen in Staphylococcus aureus with minimum inhibitory concentration (MIC) of 25 mg/ml and minimum bactericidal concentration (MBC) of 50 mg/ml, and then in Enterococcus faecium, and Enterococcus faecalis minimum inhibitory concentration of 100 mg/ml and minimum bactericidal concentration of 200 mg/ml. Gram-negative bacteria were resistant to all concentrations of extract in both methods.Conclusion: The isolated multiple-drug resistant Gram-positive bacteria which were from problematic agents in treatment of wounds, showed high sensitivity to propolis ethanolic extract.

کلیدواژه‌ها [English]

  • Wound infection
  • Antibiotic Resistance
  • Propolis
  • Antibacterial agent
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