scholarly journals Antibiotic Resistance. Scale and Relevance of Studies of the Antibiotic-Resistant Isolates Circulation among Children

2021 ◽  
Vol 6 (4) ◽  
pp. 199-207
Author(s):  
I. I. Fohel ◽  
◽  
M. V. Kryvtsova ◽  
Y. Y. Bugir
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Genes ◽  
Bacterial Infections ◽  
Pediatric Population ◽  
Public Awareness ◽  
World Health ◽  
Antibiotic Resistant ◽  
Rapid Acquisition ◽  
The World ◽  
Life Threatening

Over the last decade, the phenomenon of antibiotic resistance of microorganisms has become a global problem for modern medicine around the world. Bacteria quickly acquire genes of resistance to the action of the antibiotics. Bacterial infections that used to be easy to treat, now, in some cases, can even be life-threatening. Resistant microorganisms pose a danger not only among the adult population but also among the pediatric population. According to the World Health Organization, up to 200,000 newborns die each year from infections caused by antibiotic-resistant microorganisms. Premature babies are at particular risk because their immune systems are still underdeveloped. The use of antibiotics in children should be reasonably approached, as recent studies have shown an increase of the spread of bacteria with resistance genes. Infections caused by resistant microorganisms are more difficult to treat and require special methods and approaches, especially for children, where the choice of antibiotics is already limited. The purpose of the study is to analyze the literature for the current state of the problem of antibiotic resistance, prospects for future development, relevance in pediatric practice. Materials and methods. The research materials are publications of national and foreign authors. Analytical methods were used as main research methods. This article considers the problem of antibiotic resistance, general mechanisms of its formation, research data on the prevalence of circulation of resistant strains in the pediatric population and their role in the initiation of resistant bacterial infections. Conclusion. It is concluded that bacteria insensitive to antibiotics are quite common among the pediatric population and in some cases are life-threatening. This phenomenon requires constant monitoring in order to detect and correctly treat persistent bacterial infections. There are many strains resistant to first- and second-generation antibiotics circulating in children. In some cases, the treatment of certain conditions in pediatrics may lead to the use of reserve antibiotics. Systemic coordinated work around the world and an individual approach in determining the sensitivity of microorganisms to antibiotics in each case can prevent the rapid acquisition of resistance genes by bacteria. It is also necessary to spread information about the threat of antibiotic resistance in order to raise public awareness and counteract the empirical use of antibiotics at home without a prescription. There is also an urgent need to invent new chemical compounds with bactericidal properties as soon as possible

scholarly journals A REVIEW ARTICLE ON: ANTIBIOTIC RESISTANCE

2020 ◽  
Vol 9 (3) ◽  
Author(s):  
Ajid K. Mule ◽  
Suraj Malpani ◽  
Shradha T. Nemane ◽  
Sushil S. Kore ◽  
Ayaj S. Pathan
Keyword(s):  
Antibiotic Resistance ◽  
Bacterial Infections ◽  
Animal Husbandry ◽  
World Health ◽  
Resistant Bacteria ◽  
High Morbidity ◽  
Antibiotic Resistant ◽  
The World ◽  
Tract Infections ◽  
The U.S

Antibiotics are the ‘wonder drugs’ to combat microbes. For decades, various types of antibiotics have not only been used for therapeutic purposes but practiced prophylactically across other industries such as agriculture and animal husbandry. Antibiotic-resistant infections correlate with the level of antibiotic consumption. Non-judicial use of antibiotics is one of the reason for making the microbes resistant. The antibiotic therapy store for emerging hard-to-treat multidrug-resistant bacterial infections is limited, resulting in high morbidity and mortality report. As per the World Health Organization “First worldwide Report on Antibiotic Resistance”, and the U.S. Centers for Disease Control & Prevention (CDC&P) and the spread of “superbugs” - bacteria that have changed in ways that provided antibiotics non effective against them - is a severe and growing threat around the world. Once common treatments for not only everyday intestinal and urinary tract infections but also pneumonia as well as infections in newborn and diseases like gonorrhea are no longer working in people. Thus, in 2013, two million people in the U.S. were affected by antibiotic-resistant bacteria, and 23,000 of them die each year as a result. Keywords: Wonder drugs, antibiotic resistance, CDC&P, Superbugs etc.

scholarly journals Conjugative delivery of CRISPR-Cas9 for the selective depletion of antibiotic-resistant enterococci

2019 ◽  
Author(s):  
Marinelle Rodrigues ◽  
Sara W. McBride ◽  
Karthik Hullahalli ◽  
Kelli L. Palmer ◽  
Breck A. Duerkop
Keyword(s):  
Antibiotic Resistance ◽  
Enterococcus Faecalis ◽  
Resistance Genes ◽  
Bacterial Infections ◽  
Antibiotic Resistance Genes ◽  
Multidrug Resistant ◽  
Conjugative Plasmid ◽  
Antibiotic Resistant ◽  
Resistance Determinants

AbstractThe innovation of new therapies to combat multidrug-resistant (MDR) bacteria is being outpaced by the continued rise of MDR bacterial infections. Of particular concern are hospital-acquired infections (HAIs) recalcitrant to antibiotic therapies. The Gram-positive intestinal pathobiontEnterococcus faecalisis associated with HAIs and some strains are MDR. Therefore, novel strategies to controlE. faecalispopulations are needed. We previously characterized anE. faecalisType II CRISPR-Cas system and demonstrated its utility in the sequence-specific removal of antibiotic resistance determinants. Here we present work describing the adaption of this CRISPR-Cas system into a constitutively expressed module encoded on a pheromone-responsive conjugative plasmid that efficiently transfers toE. faecalisfor the selective removal of antibiotic resistance genes. Usingin vitrocompetition assays, we show that these CRISPR-Cas-encoding delivery plasmids, or CRISPR-Cas antimicrobials, can reduce the occurrence of antibiotic resistance in enterococcal populations in a sequence-specific manner. Furthermore, we demonstrate that deployment of CRISPR-Cas antimicrobials in the murine intestine reduces the occurrence of antibiotic-resistantE. faecalisby several orders of magnitude. Finally, we show thatE. faecalisdonor strains harboring CRISPR-Cas antimicrobials are immune to uptake of antibiotic resistance determinantsin vivo. Our results demonstrate that conjugative delivery of CRISPR-Cas antimicrobials may be adaptable for future deployment from probiotic bacteria for exact targeting of defined MDR bacteria or for precision engineering of polymicrobial communities in the mammalian intestine.ImportanceCRISPR-Cas nucleic acid targeting systems hold promise for the amelioration of multidrug-resistant enterococci, yet the utility of such tools in the context of the intestinal environment where enterococci reside is understudied. We describe the development of a CRISPR-Cas antimicrobial, deployed on a conjugative plasmid, for the targeted removal of antibiotic resistance genes from intestinalEnterococcus faecalis. We demonstrate that CRISPR-Cas targeting reduces antibiotic resistance ofE. faecalisby several orders of magnitude in the intestine. Although barriers exist that influence the penetrance of the conjugative CRISPR-Cas antimicrobial among target recipientE. faecaliscells, the removal of antibiotic resistance genes inE. faecalisupon uptake of the CRISPR-Cas antimicrobial is absolute. In addition, cells that obtain the CRISPR-Cas antimicrobial are immunized against the acquisition of new antibiotic resistance genes. This study suggests a potential path toward plasmid based CRISPR-Cas therapies in the intestine.

scholarly journals Recalibration of the Antimicrobial MIC

2021 ◽  
Vol 2 (4) ◽  
pp. 01-02
Author(s):  
Daniel Amsterdam
Keyword(s):  
Antibiotic Resistance ◽  
The United States ◽  
World Health ◽  
Gram Negative Bacteria ◽  
Antibiotic Resistant ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
The World ◽  
Health Organization ◽  
Laboratory Assay

In 2009, the World health organization (WHO) referred to the problem of antibiotics and antibiotic resistance stating, “Antibiotic Resistance – one of the three greatest threats to human health.” In 2019 (i.e., just as the COVID-19 pandemic was evolving), more than 2.8 million antibiotic-resistant infections were identified in the United States, resulting in more than 35,000 deaths (CDC 2019). The initial laboratory assay which demonstrated the activity of an antibacterial compound was performed by Alexander Fleming. He showed that an extract from the mold, Penicillium rubens, could inhibit the growth of several species of Gram-positive bacteria – but not Gram-negative bacteria that were cross-streaked on agar against the diffused Penicillium compound.

scholarly journals Evaluation of Emerging Antimicrobials Resistance in Nosocomial Infections Caused by E. Coli: The Comparison Results of Observed Cases and Compartmental Model

2021 ◽  
Author(s):  
Mahshid Nasehi ◽  
Babak Eshrati ◽  
Hamidreza Baradaran ◽  
Leila Janani ◽  
Sasan Ghorbani-Kalkhajeh ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Antimicrobial Resistance ◽  
World Health Organization ◽  
Nosocomial Infections ◽  
World Health ◽  
Antibiotic Resistant ◽  
Microbial Resistance ◽  
E Coli ◽  
The World ◽  
Health Organization

Abstract Background: The World Health Organization repeatedly emphasizes the spread and association of nosocomial infections with microbial resistance. In a 2014 report, the World Health Organization cited microbial resistance as a global threat. In recent years, the world has seen the rapid growth of antibiotic-resistant E. coli in most areas, which poses a serious threat to public health. A high percentage of bacteria that cause nosocomial infections have been resistant to treatment. The most common bacterial agent among these nosocomial infections is E. coli. This bacterium is one of the main causes of nosocomial infections among hospitalized patients. One of the most important goals of the Global Antimicrobial Resistance and Use Surveillance System (GLASS) is timely identification and transmission of Emerging Antimicrobial Resistance (EAR) or outbreak of antibiotic resistance. One of the main ways to identify this "emerging" at the national or local level is to identify deviations from the expected resistance in drug compounds. As a result, if the observed cases of a drug-resistant pathogen are significantly higher than expected, it could indicate "emerging".Purpose: This study aimed to identify and transmit EAR or outbreak of antibiotic resistance among antibiotics used in the treatment of nosocomial infections caused by E. coli. This was done by comparing the observed cases of resistant E. coli with the predicted cases of resistant E. coli, which were predicted by the compartment model.Methods: This is a hospital-based study that used data from the nosocomial infection survelliance system to investigate observed cases of antibiotic resistance. In this study, the results of 12,954 antibiogram tests related to 57 hospitals located in 31 provinces of Iran were divided into two parts (results related to the first half of 2017 and results related to the second half of 2017). The model was developed in the second half of the year to predict expected cases. Before developeing model to predict the expected cases of resistant E. coli, the validity of the model was evaluated by implementing the model in the first half of the year. Finally, the predicted cases of resistant E. coli were compared with those observed in 2017. If the difference between the two was statistically significant, it indicated the outbreak of E.coli. This model evaluated 11 antibiotics recommended by the World Health Organization that are used to treat nosocomial infections caused by E. coli.Results: The results of this study showed that the outbreak of E. coli resistant to ampicillin and ceftazidime occurred in 2017 in hospitals of Iran. This means that resistance to ampicillin and ceftazidime antibiotics in nosocomial infections caused by E. coli is higher than expected and has become "emerging".Conclusion: This study showed how the outbreak of antibiotic resistance in the country's hospitals can be investigated. Using the method of this study, we can investigate the outbreak of antibiotic-resistant E. coli in the coming years and in different substrates. The results of this study showed that the administration and use of antibiotics should be reconsidered.

scholarly journals Evaluation of Emerging Antimicrobials Resistance in Nosocomial Infections Caused by E. Coli: the Comparison Results of Observed Cases and Compartmental Model

2021 ◽  
Author(s):  
Mahshid Nasehi ◽  
Babak Eshrati ◽  
Hamid Reza Baradaran ◽  
Leila Janani ◽  
Sasan Ghorbani Kalkhajeh ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Antimicrobial Resistance ◽  
World Health Organization ◽  
Nosocomial Infections ◽  
World Health ◽  
Antibiotic Resistant ◽  
Microbial Resistance ◽  
E Coli ◽  
The World ◽  
Health Organization

Abstract Background: The World Health Organization repeatedly emphasizes the spread and association of nosocomial infections with microbial resistance. In a 2014 report, the World Health Organization cited microbial resistance as a global threat. In recent years, the world has seen the rapid growth of antibiotic-resistant E. coli in most areas, which poses a serious threat to public health. A high percentage of bacteria that cause nosocomial infections have been resistant to treatment. The most common bacterial agent among these nosocomial infections is E. coli. This bacterium is one of the main causes of nosocomial infections among hospitalized patients. One of the most important goals of the Global Antimicrobial Resistance and Use Surveillance System (GLASS) is timely identification and transmission of Emerging Antimicrobial Resistance (EAR) or outbreak of antibiotic resistance. One of the main ways to identify this "emerging" at the national or local level is to identify deviations from the expected resistance in drug compounds. As a result, if the observed cases of a drug-resistant pathogen are significantly higher than expected, it could indicate "emerging".Purpose: This study aimed to identify and transmit EAR or outbreak of antibiotic resistance among antibiotics used in the treatment of nosocomial infections caused by E. coli. This was done by comparing the observed cases of resistant E. coli with the predicted cases of resistant E. coli, which were predicted by the compartment model.Methods: This is a hospital-based study that used data from the nosocomial infection survelliance system to investigate observed cases of antibiotic resistance. In this study, the results of 12,954 antibiogram tests related to 57 hospitals located in 31 provinces of Iran were divided into two parts (results related to the first half of 2017 and results related to the second half of 2017). The model was developed in the second half of the year to predict expected cases. Before developeing model to predict the expected cases of resistant E. coli, the validity of the model was evaluated by implementing the model in the first half of the year. Finally, the predicted cases of resistant E. coli were compared with those observed in 2017. If the difference between the two was statistically significant, it indicated the outbreak of E.coli. This model evaluated 11 antibiotics recommended by the World Health Organization that are used to treat nosocomial infections caused by E. coli.Results: The results of this study showed that the outbreak of E. coli resistant to ampicillin and ceftazidime occurred in 2017 in hospitals of Iran. This means that resistance to ampicillin and ceftazidime antibiotics in nosocomial infections caused by E. coli is higher than expected and has become "emerging".Conclusion: This study showed how the outbreak of antibiotic resistance in the country's hospitals can be investigated. Using the method of this study, we can investigate the outbreak of antibiotic-resistant E. coli in the coming years and in different substrates. The results of this study showed that the administration and use of antibiotics should be reconsidered.

scholarly journals Antibiotic-resistant microbiota of water and soil ecosystems as risk factors for human health

2021 ◽  
Vol 32 (1) ◽  
pp. 67-70
Author(s):  
T. Yu. Matylonok ◽  
O. Ye. Pakhomov ◽  
N. M. Polishchuck
Keyword(s):  
Antibiotic Resistance ◽  
Human Health ◽  
Resistance Genes ◽  
Large Scale ◽  
Resistant Bacteria ◽  
Antibacterial Drugs ◽  
Antibiotic Resistant ◽  
Soil Ecosystems ◽  
The World ◽  
Resistant Strains

Bacterial resistance to antibiotics is one of the three major health challenges of the 21st century. One of the most important reasons for the acquisition and spread of antibiotic resistance in the environment is the irrational and uncontrolled use of antibacterial drugs, not only for medical but also other purposes, and their improper disposal. The microbiome of aquatic and soil ecosystems is characterized by the acquisition of antibiotic resistance through mobile genetic elements, contact with antibacterial drugs and their residues, the action of heavy metals and environmental stress. Also, according to the literature, it is noted that the resistance of microorganisms to antibacterial drugs in the environment existed much earlier than in clinical strains. These facts can not help but worry, because antibiotic-resistant strains of the environment have an extremely negative impact on human health. Once in the human body with water and food, they significantly complicate and / or make it impossible to further treat life-threatening diseases. Also, antibacterial residues circulating in aquatic and soil ecosystems, entering the human body can cause cancer, allergic reactions or disruption of the natural intestinal microflora. These ecosystems are characterized by large-scale spread of antibiotic-resistant microorganisms, antibacterial drugs and their residues. The aim of our work was to analyze with the help of theoretical methods of scientific research the reasons for the acquisition and spread of antibiotic resistance among environmental microbiota, namely in aquatic and soil ecosystems. To determine the impact of antibiotic-resistant bacteria of these ecosystems on human health. We have found that antibacterial drugs, antibiotic-resistant strains and resistance genes are a particular problem for wastewater treatment. Antibiotics can provide a selective load, as the mechanisms that break them down can promote resilience and selectively enrich. Wastewater treatment plants can be a favorable factor for the horizontal transfer of genes and the development of bacterial polyresistance, and high-resistance genes can be preserved even after disinfection. Soil is also an important reservoir for antibiotic-resistant bacteria and resistance genes. Microorganisms are in a constant struggle for existence in this ecosystem and try to colonize the micro-scale with the most favorable for their ecotype habitat. Antibiotic-resistant soil bacteria are in close contact with other members of the microbiota, which in turn promotes the horizontal transfer of resistance genes, even between cells of different species or genera through genetic determinants. Conclusion: ecosystems are characterized by large-scale spread of antibiotic-resistant microorganisms, antibacterial drugs and their residues. Therefore, this problem should be properly addressed, as the presence of antibiotic-resistant microorganisms, antibacterial drugs and their residues in the environment can cause unpredictable environmental consequences and adversely affect human health with more severe incurable infectious diseases. Monitoring programs for antibiotic-resistant microorganisms and resistance genes in soil and aquatic ecosystems are necessary and very relevant today. After all, this microbiota poses a serious threat to both the environment and human health and can easily spread from one part of the world around the world.

scholarly journals Antibiotic Resistance in Bacillus-based Biopesticide Products

2021 ◽  
Author(s):  
Mo Kaze ◽  
Mark Sistrom ◽  
Lauren Brooks
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Genes ◽  
Bacterial Infections ◽  
Antibiotic Resistance Genes ◽  
Agricultural Practices ◽  
Resistant Bacteria ◽  
Multiple Drug ◽  
Antibiotic Resistant ◽  
Microbiological Techniques ◽  
High Concentrations

The crisis of antibiotic resistant bacterial infections is one of the most pressing public health issues. Common agricultural practices have been implicated in the generation of antibiotic resistant bacteria. Biopesticides, live bacteria used for pest control, are non-pathogenic and considered safe for consumption. Application of bacteria-based pesticides to crops in high concentrations raises the possibility of unintentional contributions to the movement and generation of antibiotic resistance genes in the environment. However, the presence of clinically relevant antibiotic resistance genes and their resistance phenotypes are currently unknown. Here we use a combination of multiple bioinformatic and microbiological techniques to define resistomes of widely used biopesticides and determine how the presence of suspected antibiotic resistance genes translates to observable resistance phenotypes in several biopesticide products. Our results demonstrate that biopesticide products are reservoirs of clinically relevant antibiotic resistance genes and bear resistance to multiple drug classes.

scholarly journals Development of antimicrobial therapy methods to overcome the antibiotic resistance of Acinetobacter baumannii

Acta Naturae ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 34-45
Author(s):  
Olga V. Kisil ◽  
Tatiana A. Efimenko ◽  
Nina I. Gabrielyan ◽  
Olga V. Efremenkova
Keyword(s):  
Antibiotic Resistance ◽  
Acinetobacter Baumannii ◽  
Pathogenic Bacteria ◽  
Uv Light ◽  
Outer Membrane Proteins ◽  
World Health ◽  
Antibiotic Resistant ◽  
The World ◽  
Clinically Significant ◽  
Health Organization

The spread of antibiotic resistance among pathogens represents a threat to human health around the world. In 2017, the World Health Organization published a list of 12 top-priority antibiotic-resistant pathogenic bacteria for which new effective antibiotics or new ways of treating the infections caused by them are needed. This review focuses on Acinetobacter baumannii, one of these top-priority pathogens. The pathogenic bacterium A. baumannii is one of the most frequently encountered infectious agents in the world; its clinically significant features include resistance to UV light, drying, disinfectants, and antibiotics. This review looks at the various attempts that have been made to tackle the problem of drug resistance relating to A. baumannii variants without the use of antibiotics. The potential of bacteriophages and antimicrobial peptides in the treatment of infections caused by A. baumannii in both planktonic and biofilm form is assessed. Such topics as research into the development of vaccines based on the outer membrane proteins of A. baumannii and the use of silver nanoparticles, as well as photodynamic and chelate therapy, are also covered.

scholarly journals Surveillance of antibiotic resistance in Salmonella

1997 ◽  
Vol 2 (3) ◽  
pp. 19-20 ◽  
Author(s):  
A Brisabois ◽  
I Cazin ◽  
J Breuil ◽  
E Collatz
Keyword(s):  
Antibiotic Resistance ◽  
World Health Organisation ◽  
World Health ◽  
Antibiotic Resistant ◽  
The World ◽  
Resistant Strains ◽  
Intensive Breeding

The World Health Organisation has recently pointed out an alarming increase in the incidence of antibiotic resistant strains of Salmonella, which are due to the use of antibiotics in intensive breeding. In France, until recent years, no or few cases of a

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