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Articles by M. Aghazadeh
Total Records ( 2 ) for M. Aghazadeh
  Z. Dalirsani , M. Aghazadeh , M. Adibpour , M. Amirchaghmaghi , A. Pakfetrat , P. Mosannen Mozaffari , M. Mehdipour and A. Taghavi Zenooz
  The use of mouthwash has increased because of attention to oral hygiene. Herbal mouthwashes have fewer side effects and are more economic than similar chemical drugs. In this study, the antimicrobial effects of ten herbal extracts on Streptococcus mutans were compared with chlorhexidine. Thirty grams of ten plants including thyme, mint, garlic, cinnamon, chamomile, tea tree, clove, spearmint, sage, and rosemary were dissolved in 100 mm of pure methanol and placed on a shaker for 48 h. Then, after passing the solution through a filter, they were put in an incubator at 37 centigrade degee for 48 h. Streptococcus mutans was cultured on blood agar. Chlorhexidine discs were used as positive controls while methanol and blank discs were used as negative controls. After 24 h the diameters of the halos indicative of lack of growth in each disc were measured with a pair of calipers. The zone diameters around each disc were compared with chlorhexidine using T test analysis. The inhibitory zone has observed around the Rosemary extract discs. Rosemary was found as a potent antimicrobial plant. More studies are suggested for production of herbal mouthwashes.
  E.B. Gajan , R. Abashov , M. Aghazadeh , H. Eslami , S.G. Oskouei and D. Mohammadnejad
  The aim of this study was to determine the resistance pattern and the type of resistance genes of vancomycin-resistant Enterococcus faecalis from Gharamalek wastewater treatment plant in Tabriz, Iran. Following filtering of sewage samples, approximately 300 colonies grew on specific media, of which 53 were randomly selected and purified using 0.45 μm membranes. The membranes were placed on culture media containing antibiotics to isolate the vancomycin-resistant Enterococcus. Biochemical tests, antibiogram and determining minimum inhibitory concentration of antibiotics with E-test including vancomycin were performed. Polymerase Chain Reaction (PCR) was carried out to determine the type of resistance genes. All tested samples were found to be E. faecalis. Antimicrobial susceptibility tests indicated multidrug resistance in the sapmles, with 98% of them highly resistant to vancomycin. The highest frequency was of vanA (96%), followed by vanB (4%); vanC was not seen among the tested samples. The results confirmed that the risk of exposure to antibiotic-resistant pathogens from the evaluated urban wastewater is considerable.
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