نتایج جستجو برای: aeroginosa
تعداد نتایج: 258 فیلتر نتایج به سال:
OBJECTIVE Pseudomonas aeruginosa is one of the most important causes of nosocomial infections and can acquire resistant to many antimicrobials, including β-lactams. The aim of this study was to detect the prevalence of SHV type extended-spectrum beta-lactamase (ESBL), antimicrobial resistance patterns of the P. aeroginusa and risk factors in hospitalized patients in two teaching hospitals in Sa...
BACKGROUND AND OBJECTIVES Pneumonia with Acinetobacter baumannii has a major therapeutic problem in health care settings. Decision to initiate correct antibiotic therapy requires rapid identification and quantification of organism. The aim of this study was to develop a rapid and sensitive method for direct detection of A. baumannii from respiratory specimens. MATERIALS AND METHODS A Taqman r...
The aim of this study was to determine the Lactobacillus plantarum isolated from soy milk, the antimicrobial activity of the bacteriocin produced by the isolate against the pathogenic bacteria and antibiotic resistance of these isolates.The identity of the culture was based on characteristics of the strains of Lactobacillus spp. as presented in Bergey’s Manual of Determinative Bacteriology, car...
Hospital-acquired bacterial pneumonia (HABP) is one of the most important causes of morbidity, mortality and economic problems especially for patients admitted in the intensive care unit (ICU) ward. The aim of this study was to determine the incidence of nosocomial pneumonia in ICU, identify the causative bacteria and their resistance profiles. This cross sectional study was performed on 214 pa...
Patients on cytotoxic therapy often develop neutropenia and fever. Our interest was to identify the common pathogens isolated from such patients and to study the sensitivity patterns of these organisms to the antibiotics used in their treatment. Thus, guidelines can be established by hospitals to identify which antibiotics can be used in the treatment of these patients when the results of cultu...
The purpose of the present study was to compare the stabilizing effect of four disaccharides alone or in combination on the lactoperoxidase (LP) derived from bovine milk during lyophilization. Sucrose, lactose, maltose, and trehalose at different concentrations (5-500 mM) were used to compare their protective effects on LP activity. The activity of lyophilized and native LP enzyme was evaluated...
The antimicrobial activities of the ethyl acetate, acetone and methanol extract of 12 plant species were studied. The extract of Capsicum annuum (red pepper) (fruit) Zingiber officinale (ginger) (root), Cuminum cyminum (cumin), Alpinia ficinarum (galingale), Coriandrum sativum (coriander), Cinnamomun zeylanicum Nees (cinnamomun), Origanum onites L. (thyme), Folium sennae (senna), Eugenia caryop...
the thiosemicarbazides 3a-c were appeared by reaction of the corresponding substituted hydrazides 1a-c with allylisothiocyanate 2. synthesis of some novel 1,2,4-triazole-thiols 4a-c bearing a pyridyl unit using 1-(x-picolinoyl)-4-allyl-thiosemicarbazides (x = 2,3,4) in an alkaline solution, is reported. also, the s-alkylation of triazole derivatives 5-7a-c is described. the structure of the syn...
در سالهای اخیر جهت تولید محصولات سالم و کاهش مشکلات زیستمحیطی، از کودهای آلی و زیستی برای افزایش حاصلخیزی خاک، رفع نیاز تغذیهای و افزایش رشد گیاهان استفاده میشود. بهمنظور بررسی تأثیر کودهای آلی و زیستی بر صفات کمی و کیفی زعفران آزمایشی در دو سال زراعی 95- 1394 و 96- 1395 بهصورت کرتهای خرد شده در قالب طرح بلوکهای کامل تصادفی در سه تکرار در ایستگاه تحقیقات کشاورزی اردبیل اجرا شد. کرتها...
خیارهای دریایی تولید کننده انواع مختلفی از ترکیبات طبیعی زیست فعال به ویژه متابولیتهای ثانویه از جمله ساپونین می باشند. هدف از مطالعه حاضر بررسی فعالیت ضد باکتریایی ساپونین استخراج شده از خیار دریایی گونه (Stichopus hermanni) جمع آوری شده از خلیج فارس در برابر برخی باکتریهای گرم مثبت و منفی بود. ابتدا عصارهگیری با اتانول70% انجام شد و به منظور جداسازی ساپونین، عصاره اتانولی تغلیظ شده بر روی س...
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