Nanoantibiotics: Future nanotechnologies to combat antibiotic resistance.

Nanoantibiotics: Future nanotechnologies to combat antibiotic resistance. Front Biosci (Elite Ed). 2018 Mar 01;10:352-374 Authors: Muzammil S, Hayat S, Fakhar-E-Alam M, Aslam B, Siddique MH, Nisar MA, Saqalein M, Atif M, Sarwar A, Khurshid A, Amin N, Wang Z Abstract The discovery of antibiotics was hailed as a historic breakthrough for the human race in the fight against bacterial and malignant infections. However, in a very short time, owing to their acute and aggressive nature, bacteria have developed resistance against antibiotics and other chemotherapeutics agents. Potentially, this situation could again result in bacterial infection outbreaks. Metal and metal oxide nanoparticles have been proven as better alternatives; the combination of antibiotics and metal oxide nanoparticles was shown to decrease the toxicity and enhance the antibacterial, antiviral, and anticancer efficacy of the agents. This review provides a detailed view about the role of metal and metal oxide nanoparticles in the treatment of infections in conjunction with antibiotics, their modes of action, and synergism. In addition, the problems of multidrug resistance are addressed and will allow the development of a comprehensive, reliable, and rational treatment plan. It is expected that this comprehensive review will lead to new research opportunities, which should be helpful for future applications in biomedical science. PMID: 29293463 [PubMed - in process]
Source: Frontiers in Bioscience - Elite - Category: Biomedical Science Tags: Front Biosci (Elite Ed) Source Type: research

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Publication date: Available online 13 February 2020Source: Food ControlAuthor(s): Dan Hai, Xingpeng Yin, Zhaoxin Lu, Fengxia Lv, Haizhen Zhao, Xiaomei BieAbstractSalmonella is considered one of the most important foodborne pathogens and is commonly associated with the consumption of eggs, chicken meat, chicken intestines and other animal products. Multidrug resistant (MDR) Salmonella strains are highly adaptive and have been responsible for several foodborne disease outbreaks. We investigated the genetic relatedness, antibiotic resistance and virulence genes of 160 strains which were recovered from 920 samples. The samples...
Source: Food Control - Category: Food Science Source Type: research
In this study, we report for the first time the isolation of a strain of the recently described novel species Lactococcus petauri, from rainbow trout suffering from lactococcosis. The aim of this study was to determine the complete genome sequence of L. petauri strain LG_SAV_20 and to characterize its antimicrobial resistance and virulence. The genome of L. petauri LG_SAV_20 consists of 2,078,949 base pair (bp) with a GC content of 38.05%, 1950 predicted coding sequence (CDS), and 60 RNAs (51 tRNAs, 3 ncRNAs, and 6 rRNAs). Phylogenetic analysis revealed that L. petauri LG_SAV_20 shares most of its genome with L. garvieae s...
Source: Current Microbiology - Category: Microbiology Authors: Tags: Curr Microbiol Source Type: research
Abstract Invasive candidiasis (IC) is the most frequent health care associated invasive fungal infection. It is also associated with high morbidity, mortality, and cost. The most frequent etiologic agent is Candida albicans, but non-albicans species are increasing and associated with reduced antifungal susceptibility and outbreaks. Candida auris is an emerging multidrug-resistant species recently described. IC presents as a spectrum of disease, going from fungemia to deep-seated candidiasis, and to septic shock with multiorgan failure. Diagnosis of IC is challenging. Several biomarkers and molecular methods are av...
Source: Respiratory Care - Category: Respiratory Medicine Authors: Tags: Semin Respir Crit Care Med Source Type: research
Semin Respir Crit Care Med 2020; 41: 003-012 DOI: 10.1055/s-0040-1701215Invasive candidiasis (IC) is the most frequent health care associated invasive fungal infection. It is also associated with high morbidity, mortality, and cost. The most frequent etiologic agent is Candida albicans, but non-albicans species are increasing and associated with reduced antifungal susceptibility and outbreaks. Candida auris is an emerging multidrug-resistant species recently described. IC presents as a spectrum of disease, going from fungemia to deep-seated candidiasis, and to septic shock with multiorgan failure. Diagnosis of IC is challe...
Source: Seminars in Respiratory and Critical Care Medicine - Category: Respiratory Medicine Authors: Tags: Review Article Source Type: research
CONCLUSION: Because of the presence of multiple resistance genes among some K. pneumoniae strains, antibiotic agents should be used with caution to preserve their efficacy in case of life-threatening infections. PMID: 31995023 [PubMed - as supplied by publisher]
Source: Infectious Disorders Drug Targets - Category: Infectious Diseases Authors: Tags: Infect Disord Drug Targets Source Type: research
AbstractAlong with the recent spread of multidrug-resistant bacteria, outbreaks of extended-spectrum β-lactamase (ESBL) and carbapenemase-producing bacteria present a serious challenge to clinicians. β-lactam antibiotics are the most frequently used antibacterial agents and ESBLs, and carbapenemases confer resistance not only to carbapenem antibiotics but also to penicillin and cephem antibiotics . The mechanism of β-lactam resistance involves an efflux pump, reduced permeability, altered transpeptidases, and inactivation by β-lactamases. Horizontal gene transfer is the most common mechanism associated ...
Source: Journal of Intensive Care - Category: Intensive Care Source Type: research
We describe the epidemiology and antimicrobial susceptibility patterns of Salmonella enterica serovar Typhi (S. Typhi) infection in Laos based on isolates accrued over 18 years at Mahosot Hospital, Vientiane. All blood cultures collected from patients presenting with fever submitted to the Microbiology Laboratory at Mahosot Hospital (February 2000-December 2018) were included. This included patients from Vientiane and four provincial hospitals and one typhoid outbreak investigation. A total of 913 (1.5%) of 60,384 blood cultures were positive for S. Typhi. The majority of isolates with data available (712/898, 79.3%) were ...
Source: The American Journal of Tropical Medicine and Hygiene - Category: Tropical Medicine Authors: Tags: Am J Trop Med Hyg Source Type: research
Publication date: Available online 20 December 2019Source: Journal of Hospital InfectionAuthor(s): B. Pilmis, T. Billard-Pomares, M. Martin, C. Clarempuy, C. Lemezo, C. Saint-Marc, N. Bourlon, D. Seytre, E. Carbonnelle, J-R. ZaharSUMMARYBackgroundLittle is known about patient risk factors associated with environmental contamination.AimTo evaluate the rate of environmental contamination and to investigate individual risk factors.MethodsA prospective cohort study was conducted. Each day, five rooms occupied by patients were selected. Five critical surfaces were systematically swabbed twice a day before and after cleaning. Cl...
Source: Journal of Hospital Infection - Category: Infectious Diseases Source Type: research
In this study, 43 Salmonella phages were isolated from environmental resources and among them, phage D1-2 was selected since it exhibited the most potent lytic ability and the broadest host spectrum against tested Salmonella strains. Further study demonstrated that D1-2 shows high pH and thermal tolerances and a short latent period, together with a low frequency of emergence of phage resistance. D1-2 effectively inhibited the growth of two MDR Salmonella strains in liquid egg white and egg yolk at both 4 °C and 25 °C. Morphology and phylogeny indicated that D1-2 belongs to the Myoviridae family. Genome analysis of ...
Source: Food Research International - Category: Food Science Source Type: research
This study sheds light on the virulence and AMR potential of E. coli ST302 strains and informs AMR genomic surveillance.
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
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