نتایج جستجو برای: antibiotic resistant
تعداد نتایج: 257029 فیلتر نتایج به سال:
World population growth and requirement to global food security, application of genetic engineering and utilization of transgenic organisms have made more important. Using this technology, without regarding to its risks, can cause loses to environment. To generate transgenic organisms, selection systems are applied that cause to selective growth of transformed cells. Antibiotic resistance genes...
Streptococcus pneumonia is one of the most common pathogens in the humaun beings, specially in childhood. Knowing of it’s “Antibiotic resistance” is very important for antibiotic administration by medical persons. Between 1996-1997 nasopharyngeal culture has been done in 170 healthy child whom stayed in day care centers. Of 170, 51/8% (mean age=3.98years) were female and 48.2% (mean age=3.99ye...
Patients with cancer are at high risk for infections caused by antibiotic resistant gram-negative bacteria. In this review, we summarize trends among the major pathogens and clinical syndromes associated with antibiotic resistant gram-negative bacterial infection in patients with malignancy, with special attention to carbapenem and expanded-spectrum β-lactam resistance in Escherichia coli, Kleb...
Some transformable bacteria have acquired target-mediated antibiotic resistance by horizontal genetic exchange of fragments of chromosomal genes. The resistant strains express variants of the antibiotic target that are metabolically active but exhibit a lowered affinity for the antibiotic. The alleles encoding these resistant proteins are mosaics comprising DNA derived from the host and other b...
We assessed horizontal gene transfer between bacteria in the gastrointestinal (GI) tract. During the last decades, the emergence of antibiotic resistant strains and treatment failures of bacterial infections have increased the public awareness of antibiotic usage. The use of broad spectrum antibiotics creates a selective pressure on the bacterial flora, thus increasing the emergence of multires...
The emergence of clinically relevant ?-lactam-resistant bacteria poses a serious threat to human health and presents major challenge for medical treatment. How opportunistic pathogenic acquire antibiotic resistance the prevalence antibiotic-resistant in environment are still unclear. In this study, we further confirmed that selective pressure heavy metals contributes increase ampicillin-resista...
BACKGROUND Recently isolated Vibrio parahaemolyticus strains have displayed multiple antibiotic resistance. Alternatives to conventional antibiotics are needed, especially for the multiple-antibiotic-resistant V. parahaemolyticus pandemic strain. METHODS A bacteriophage, designated pVp-1, showed effective infectivity for multiple-antibiotic-resistant V. parahaemolyticus and V. vulnificus, inc...
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