نتایج جستجو برای: arsenic resistant bacteria

تعداد نتایج: 371960  

2014
Xiangyang Li Linshuang Zhang Gejiao Wang

So far, numerous genes have been found to associate with various strategies to resist and transform the toxic metalloid arsenic (here, we denote these genes as "arsenic-related genes"). However, our knowledge of the distribution, redundancies and organization of these genes in bacteria is still limited. In this study, we analyzed the 188 Burkholderiales genomes and found that 95% genomes harbor...

Journal: :archives of pediatric infectious diseases 0
mohammad rahmati roodsari shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) fatemeh fallah pediatric infections research center, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) arezou taherpour department of microbiology, kurdistan university of medical sciences, sanandaj, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی کردستان (kordestan university of medical sciences) mojdeh hakemi vala department of microbiology, shahid beheshti university of medical sciences, tehran, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) ali hashemi department of microbiology, shahid beheshti university of medical sciences, tehran, ir iran; department of microbiology, shahid beheshti university of medical sciences, p. o. box: 19857-17443, tehran, ir iran. tel: +98-2123872556, fax: +98-2144503530سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

carbapenemase producing bacteria frequently possess resistance mechanisms to a wide-range of antibacterial agents, and are associated with high mortality and morbidity rates. some enzymes like extended-spectrum β-lactamase (esbl), new delhi metallo-beta-lactamase-1 (ndm-1), klebsiella pneumoniae carbapenemase (kpc), and oxa-producing enterobacteriaceae are very important in frequently isolated ...

Objective: Burn wound infection is a severe complication of thermal injury. Patients with severe burn injuries need urgent care to diminish complications after severe burns. Wound infections are commonly considered one of the most serious burn complications, particularly those that are caused by extensively drug-resistant (XDR) bacteria with few therapeutic choices. The objective of this study ...

Background & Objective: Klebsiella pneumoniae has received attention due to a wide range of diseases and antibiotic resistance.The resistance to fluoroquinolones in gram-negative bacteria is often due to chromosomal mutations in the gyr and par genes. This research aimed at investigating the pattern of fluoroquinolone resistance and its relation with a mutation in the parC gene among clinical i...

2011
Xuefeng Ren Maria Aleshin William J. Jo Russel Dills David A. Kalman Christopher D. Vulpe Martyn T. Smith Luoping Zhang

BACKGROUND In humans, inorganic arsenic (iAs) is metabolized to methylated arsenical species in a multistep process mainly mediated by arsenic (+3 oxidation state) methyltransferase (AS3MT). Among these metabolites is monomethylarsonous acid (MMAIII), the most toxic arsenic species. A recent study in As3mt-knockout mice suggests that unidentified methyltransferases could be involved in alternat...

Journal: :Frontiers in Environmental Science 2021

High concentrations of non-essential heavy metals/metalloids (arsenic, cadmium, and lead) in soils irrigation water represent a threat to the environment, food safety, human animal health. Microbial bioremediation has emerged as promising strategy reduce concentration metals environment due demonstrated ability microorganisms, especially bacteria, sequester transform these compounds. Although s...

Journal: :Applied sciences 2022

Among inorganic contaminants, arsenic (As) is known for its toxicity and the risks to environment human health that could derive from presence. Phytoremediation represents an effective strategy removal of contaminated soil, provided suitable plant species adequate operational plans are exploited. With reference a disused area located in Southern Italy which was subject previous study, this work...

D. Tatlı E. U. Turhan, Z. Erginkaya

In this study, the antibiotic resistance (AR) of lactic acid bacteria (LAB) isolated from traditional Turkish fermented dairy products was investigated. Yogurt, white cheese, tulum cheese, cokelek, camız cream and kefir as dairy products were collected from various supermarkets. Lactic acid bacteria such as Lactobacillus spp., Streptococcus spp., Bifidobacterium spp., and Enterecoccus spp. were...

ژورنال: Medical Laboratory Journal 2015
Bagheri, H, Behnampour, N, Ghaemi, EA, Najafi, F,

Abstract Background and objective: The periodic evaluation of antimicrobial activity of different antibiotic is essential because antibiotic sensitivity pattern may also changed during short courses. The aim of this study was to assess the frequency of Multi-drug Resistance (MDR) in Gram negative uropathogens. Material and Methods: This study was conducted on 111 gram negative uropatho...

2013
Zhangqi Shen Jing Han Yang Wang Orhan Sahin Qijing Zhang

Arsenic, a toxic metalloid, exists in the natural environment and its organic form is approved for use as a feed additive for animal production. As a major foodborne pathogen of animal origin, Campylobacter is exposed to arsenic selection pressure in the food animal production environments. Previous studies showed that Campylobacter isolates from poultry were highly resistant to arsenic compoun...

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