No abstract

Nine isolates of Proteus spp. were isolated from 100 urine samples of renal stone patients which were the urine specimens obtained directly from Sulaimani Teaching Hospital Laboratory, and identified according to the cultural characteristic, morphological, biochemical examination. The antibiotic susceptibility test for all isolates were conducted to nine antimicrobial agents including (Ciprofloxacin (Cip), Tetracycline(TE), Neomycin (N), Gentamicin (CN), Erythromycin (E), Nitrofurantoin (F), Naldixic acid (NA), Imipenem (IPM), Amoxicillin (AX). Plasmid analysis of these isolates showed presence are (22) Kb plasmid. Curing of antibiotic resistance genes by using methanol extracts for leave of Crataegus rhipidophylla  and Adiantum capillus was performed. The minimum inhibitory concentration of these medicinal plants through methanol extracts which were 5000 µg/ml and 1000 µg/ml for Ailanthus altissima and Adiantum capillus respectively. The Sub minimum inhibition concentration (SMIC) was also determined. The results of transformation and curing experiments revealed that SMIC of Ailanthus altissima extract was cured or eliminated plasmid completely, and (SMIC) of Adiantum capillus was cured (CN, E, and AX) resistant genes.

Introduction: Enterotoxigenic Staphylococcus aureus is an important pathogen that causes septicemia and bacteremia and is often associated with serious complications, such as endocarditis and osteomyelitis. Some Staphylococcus enterotoxins require only minute quantities to be toxic in humans. The present study focused on investigation how to remove this problematic issue. Objectives: This study was conducted to inhibit S. aureus enterotoxin genes that obtained from positive blood culture bottles of patients at the pediatric hospital in Sulaimania city. Methods: Twenty five isolates of S. aureus were isolated among 100 positive blood culture bottles and determined the strains that produce enterotoxins through culture method. Then, the enterotoxin genes that located on plasmids were cured by two medicinal plants (Eugenia caryophyllata and Cinnamomum zeylanicum). Results: The results showed that nine out of 25 isolates were released enterotoxins from which the plasmid encoding enterotoxin genes were confirmed in four of them. And, two of the isolates were transferred to recipient DH10B E. coli isolate successfully. Methanol extracts of (E. caryophyllata and C. zeylanicum) were used at sub minimum inhibition concentration as curing agents. Conclusion: Methanol extracts of (E. caryophyllata and C. zeylanicum) have grate effect on eliminating the plasmidsencoding enterotoxin gene of S. aureus.