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Multi drug resistance microorganism

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https://www.readbyqxmd.com/read/28512606/antimicrobial-activity-of-nigerian-medicinal-plants
#1
REVIEW
Madubuike Umunna Anyanwu, Rosemary Chinazam Okoye
Antimicrobial resistance (AMR) is currently one of the major threats facing mankind. The emergence and rapid spread of multi- and pan-drug-resistant organisms (such as vancomycin-, methicillin-, extended-spectrum β-lactam-, carbapenem- and colistin-resistant organisms) has put the world in a dilemma. The health and economic burden associated with AMR on a global scale are dreadful. Available antimicrobials have been misused and are almost ineffective with some of these drugs associated with dangerous side effects in some individuals...
April 2017: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/28472505/the-antibiotic-resistant-target-seeker-arts-an-exploration-engine-for-antibiotic-cluster-prioritization-and-novel-drug-target-discovery
#2
Mohammad Alanjary, Brent Kronmiller, Martina Adamek, Kai Blin, Tilmann Weber, Daniel Huson, Benjamin Philmus, Nadine Ziemert
With the rise of multi-drug resistant pathogens and the decline in number of potential new antibiotics in development there is a fervent need to reinvigorate the natural products discovery pipeline. Most antibiotics are derived from secondary metabolites produced by microorganisms and plants. To avoid suicide, an antibiotic producer harbors resistance genes often found within the same biosynthetic gene cluster (BGC) responsible for manufacturing the antibiotic. Existing mining tools are excellent at detecting BGCs or resistant genes in general, but provide little help in prioritizing and identifying gene clusters for compounds active against specific and novel targets...
May 2, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28403894/antibiotic-resistant-airborne-bacteria-and-their-multidrug-resistance-pattern-at-university-teaching-referral-hospital-in-south-ethiopia
#3
Fithamlak Bisetegen Solomon, Fiseha Wada Wadilo, Amsalu Amache Arota, Yishak Leka Abraham
BACKGROUND: Hospitals provide a reservoir of microorganisms, many of which are multi-resistant to antibiotics. Emergence of multi-drug resistant strains in a hospital environment, particularly in developing countries is an increasing problem to infection treatment. This study aims at assessing antibiotic resistant airborne bacterial isolates. METHODS: A cross-sectional study was conducted at Wolaita Sodo university teaching and referral Hospital. Indoor air samples were collected by using passive air sampling method...
April 12, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28384858/antimicrobial-resistance-surveillance-among-intensive-care-units-of-a-tertiary-care-hospital-in-southern-india
#4
Kailash Moolchandani, Apurba Sankar Sastry, R Deepashree, Sujatha Sistla, B N Harish, Jharna Mandal
INTRODUCTION: Hospital Acquired Infections (HAIs) are the rising threat in the health care facilities across the globe. As most Intesive Care Unit (ICU) patients are frequently on broad spectrum antimicrobials, this induces selective antibiotic pressure which leads to development of Antimicrobial Resistance (AMR) among the microorganisms of ICUs. AIM: To study the occurrence of different types of HAIs in patients admitted to various ICUs of JIPMER and the AMR pattern of the bacterial pathogens isolated from them...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28368216/an-overview-of-antimicrobial-peptides-and-the-latest-advances-in-their-development
#5
Josep M Sierra, Ester Fusté, Francesc Rabanal, Teresa Vinuesa, Miguel Viñas
The recent dramatic increase in the incidence of antimicrobial resistance has been recognized by organizations such as the United Nations and World Health Organization as well as the governments of the USA and several European countries. A relatively new weapon in the fight against severe infections caused by multi-drug resistant bacteria is antimicrobial peptides (AMPs). These include colistin, currently regarded as the last line of antimicrobial therapy against multi-drug resistant microorganisms. Areas covered: Here, the authors provide an overview of the current research on AMPs...
June 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28346030/antimicrobial-activity-of-eugenol-and-essential-oils-containing-eugenol-a-mechanistic-viewpoint
#6
Anna Marchese, Ramona Barbieri, Erika Coppo, Ilkay Erdogan Orhan, Maria Daglia, Seyed Fazel Nabavi, Morteza Izadi, Mohammad Abdollahi, Seyed Mohammad Nabavi, Marjan Ajami
Eugenol is a hydroxyphenyl propene, naturally occurring in the essential oils of several plants belonging to the Lamiaceae, Lauraceae, Myrtaceae, and Myristicaceae families. It is one of the major constituents of clove (Syzygium aromaticum (L.) Merr. & L.M. Perry, Myrtaceae) oil and is largely used in both foods and cosmetics as a flavoring agent. A large body of recent scientific evidence supports claims from traditional medicine that eugenol exerts beneficial effects on human health. These effects are mainly associated with antioxidant and anti-inflammatory activities...
March 27, 2017: Critical Reviews in Microbiology
https://www.readbyqxmd.com/read/28275372/non-disulfide-bridge-peptide-5-5-from-the-scorpion-hadrurus-gertschi-inhibits-the-growth-of-mycobacterium-abscessus-subsp-massiliense
#7
Monalisa M Trentini, Rogério C das Neves, Bruno de Paula Oliveira Santos, Roosevelt A DaSilva, Adolfo C Barros de Souza, Márcia R Mortari, Elisabeth F Schwartz, André Kipnis, Ana P Junqueira-Kipnis
Multi-drug resistant microorganisms have been a growing concern during the last decades due to their contribution in mortality rates worldwide. Antimicrobial peptides (AMPs) are broad spectrum antimicrobial agents that display potent microbicidal activity against a wide range of microorganisms. AMPs generally have a rapid mode of action that reduces the risk of resistance developing among pathogens. In this study, an AMP derived from scorpion venom, NDBP-5.5, was evaluated against Mycobacterium abscessus subsp...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28272303/effects-of-silver-nanoparticles-on-multiple-drug-resistant-strains-of-staphylococcus-aureus-and-pseudomonas-aeruginosa-from-mastitis-infected-goats-an-alternative-approach-for-antimicrobial-therapy
#8
Yu-Guo Yuan, Qiu-Ling Peng, Sangiliyandi Gurunathan
Recently, silver nanoparticles (AgNPs) have been widely used in various applications as antimicrobial agents, anticancer, diagnostics, biomarkers, cell labels, and drug delivery systems for the treatment of various diseases. Microorganisms generally acquire resistance to antibiotics through the course of antibacterial therapy. Multi-drug resistance (MDR) has become a growing problem in the treatment of infectious diseases, and the widespread use of broad-spectrum antibiotics has resulted in the development of antibiotic resistance by numerous human and animal bacterial pathogens...
March 6, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28088439/antimicrobial-activity-of-photodynamic-therapy-in-combination-with-colistin-against-a-pan-drug-resistant-acinetobacter-baumannii-isolated-from-burn-patient
#9
Ebrahim Boluki, Hossein Kazemian, Hadi Peeridogaheh, Mohammad Yousef Alikhani, Sima Shahabi, Leili Beytollahi, Roghayeh Ghorbanzadeh
Nosocomially-acquired multi-, extensively-, and pandrug resistant (MDR, XDR, and PDR) strains of microorganisms such as Acinetobacter baumannii remain a serious cause of infection and septic mortality in burn patients. Treatment of patients with nosocomial burn wound infections is often complicated by drug-resistant strains of A. baumannii. Today, many researchers are focusing on the investigation of novel non-antibiotic strategies such as photodynamic therapy (PDT). We report a new PDT strategy that suppresses colistin resistance in PDR A...
January 11, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28044296/microfluidic-based-bacteria-isolation-from-whole-blood-for-diagnostics-of-blood-stream-infection
#10
Sergey Zelenin, Harisha Ramachandraiah, Asim Faridi, Aman Russom
Bacterial blood stream infection (BSI) potentially leads to life-threatening clinical conditions and medical emergencies such as severe sepsis, septic shock, and multi organ failure syndrome. Blood culturing is currently the gold standard for the identification of microorganisms and, although it has been automated over the decade, the process still requires 24-72 h to complete. This long turnaround time, especially for the identification of antimicrobial resistance, is driving the development of rapid molecular diagnostic methods...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28025336/construction-of-antimicrobial-peptide-drug-combination-networks-from-scientific-literature-based-on-a-semi-automated-curation-workflow
#11
Paula Jorge, Martín Pérez-Pérez, Gael Pérez Rodríguez, Florentino Fdez-Riverola, Maria Olívia Pereira, Anália Lourenço
Considerable research efforts are being invested in the development of novel antimicrobial therapies effective against the growing number of multi-drug resistant pathogens. Notably, the combination of different agents is increasingly explored as means to exploit and improve individual agent actions while minimizing microorganism resistance. Although there are several databases on antimicrobial agents, scientific literature is the primary source of information on experimental antimicrobial combination testing...
2016: Database: the Journal of Biological Databases and Curation
https://www.readbyqxmd.com/read/27976597/mycobacterial-cell-wall-biosynthesis-a-multifaceted-antibiotic-target
#12
Katherine A Abrahams, Gurdyal S Besra
Mycobacterium tuberculosis (Mtb), the etiological agent of tuberculosis (TB), is recognized as a global health emergency as promoted by the World Health Organization. Over 1 million deaths per year, along with the emergence of multi- and extensively-drug resistant strains of Mtb, have triggered intensive research into the pathogenicity and biochemistry of this microorganism, guiding the development of anti-TB chemotherapeutic agents. The essential mycobacterial cell wall, sharing some common features with all bacteria, represents an apparent 'Achilles heel' that has been targeted by TB chemotherapy since the advent of TB treatment...
December 15, 2016: Parasitology
https://www.readbyqxmd.com/read/27892739/efflux-as-a-mechanism-of-antimicrobial-drug-resistance-in-clinical-relevant-microorganisms-the-role-of-efflux-inhibitors
#13
Clarissa Willers, Johannes Frederik Wentzel, Lissinda Hester du Plessis, Chrisna Gouws, Josias Hendrik Hamman
Microbial resistance against antibiotics is a serious threat to the effective treatment of infectious diseases. Several mechanisms exist through which microorganisms can develop resistance against antimicrobial drugs, of which the overexpression of genes to produce efflux pumps is a major concern. Several efflux transporters have been identified in microorganisms, which infer resistance against specific antibiotics and even multidrug resistance. Areas covered: This paper focuses on microbial resistance against antibiotics by means of the mechanism of efflux and gives a critical overview of studies conducted to overcome this problem by combining efflux pump inhibitors with antibiotics...
January 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/27873243/antibiotics-precious-goods-in-changing-times
#14
Peter Sass
Antibiotics represent a first line of defense of diverse microorganisms, which produce and use antibiotics to counteract natural enemies or competitors for nutritional resources in their nearby environment. For antimicrobial activity, nature has invented a great variety of mechanisms of antibiotic action that involve the perturbation of essential bacterial structures or biosynthesis pathways of macromolecules such as the bacterial cell wall, DNA, RNA, or proteins, thereby threatening the specific microbial lifestyle and eventually even survival...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27842536/antibacterial-and-cytotoxic-cytochalasins-from-the-endophytic-fungus-phomopsis-sp-harbored-in-garcinia-kola-heckel-nut
#15
Jean-Bosco Jouda, Jean-de-Dieu Tamokou, Céline Djama Mbazoa, Clovis Douala-Meli, Prodipta Sarkar, Prasanta Kumar Bag, Jean Wandji
BACKGROUND: The continuous emergence of multidrug-resistant (MDR) bacteria drastically reduced the efficacy of our antibiotic armory and consequently, increased the frequency of therapeutic failure. The search for bioactive constituents from endophytic fungi against MDR bacteria became a necessity for alternative and promising strategies, and for the development of novel therapeutic solutions. We report here the isolation and structure elucidation of antibacterial and cytotoxic compounds from Phomopsis sp...
November 14, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27799206/multicenter-study-of-method-dependent-epidemiological-cutoff-values-for-detection-of-resistance-in-candida-spp-and-aspergillus-spp-to-amphotericin-b-and-echinocandins-for-the-etest-agar-diffusion-method
#16
A Espinel-Ingroff, M Arendrup, E Cantón, S Cordoba, E Dannaoui, J García-Rodríguez, G M Gonzalez, N P Govender, E Martin-Mazuelos, M Lackner, C Lass-Flörl, M J Linares Sicilia, M A Rodriguez-Iglesias, T Pelaez, R K Shields, G Garcia-Effron, J Guinea, M Sanguinetti, J Turnidge
Method-dependent Etest epidemiological cutoff values (ECVs) are not available for susceptibility testing of either Candida or Aspergillus species with amphotericin B or echinocandins. In addition, reference caspofungin MICs for Candida spp. are unreliable. Candida and Aspergillus species wild-type (WT) Etest MIC distributions (microorganisms in a species-drug combination with no detectable phenotypic resistance) were established for 4,341 Candida albicans, 113 C. dubliniensis, 1,683 C. glabrata species complex (SC), 709 C...
January 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27771149/esbl-producing-gram-negative-organisms-in-the-healthcare-environment-as-a-source-of-genetic-material-for-resistance-in-human-infections
#17
M Muzslay, G Moore, N Alhussaini, A P R Wilson
BACKGROUND: The increasing prevalence of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae in the healthcare setting and in the community despite established infection control guidelines indicates that these microorganisms may possess survival strategies that allow them to persist in the environment. AIMS: To determine the extent and variation in endemic ESBL-carrying species in different ward environments, and to investigate the potential for cephalosporin resistance to be transferred from environmental isolates to human pathogens...
January 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/27757265/antibacterial-synergy-between-rosmarinic-acid-and-antibiotics-against-methicillin-resistant-staphylococcus-aureus
#18
Sanmuga Priya Ekambaram, Senthamil Selvan Perumal, Ajay Balakrishnan, Nathiya Marappan, Sabari Srinivasan Gajendran, Vinodhini Viswanathan
AIM/BACKGROUND: Medicinal plants have ability to resist microorganisms by synthesizing secondary metabolites such as phenols. Rosmarinic acid (RA) is a phenylpropanoid widely distributed in plants and well known as therapeutic and cosmetic agent. Methicillin-resistant Staphylococcus aureus (MRSA) which is resistant to all kinds of β-lactams, threatens even most potent antibiotics. To improve the efficiency of antibiotics against multi-drug resistant bacteria and to reduce the antibiotic dose, the antibacterial activity and the synergistic effect of RA with standard antibiotics against S...
September 2016: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/27737336/synergistic-activity-of-doped-zinc-oxide-nanoparticles-with-antibiotics-ciprofloxacin-ampicillin-fluconazole-and-amphotericin-b-against-pathogenic-microorganisms
#19
Neha Sharma, Savita Jandaik, Sanjeev Kumar
Combination therapy of antibiotics and nanoparticles can be used against multi drug resistant microorganisms. Nanoparticles (NPs) have been reported to show antimicrobial activity. The antimicrobial activities of doped ZnO nanoparticles (ZnO NPs) were studied against fungi, gram-positive and gram-negative bacteria using the standard microdilution method. The interaction between the nanoparticle and the antibiotic was estimated by calculating the fractional inhibitory concentration (FIC index) of the combination through checkerboard assay...
2016: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/27642751/identification-and-characterization-of-cefotaxime-resistant-bacteria-in-beef-cattle
#20
Raies A Mir, Thomas A Weppelmann, Judith A Johnson, Douglas Archer, J Glenn Morris, KwangCheol Casey Jeong
Third-generation cephalosporins are an important class of antibiotics that are widely used in treatment of serious Gram-negative bacterial infections. In this study, we report the isolation of bacteria resistant to the third-generation cephalosporin cefotaxime from cattle with no previous cefotaxime antibiotic exposure. The prevalence of cefotaxime-resistant bacteria was examined by a combination of culture based and molecular typing methods in beef cattle (n = 1341) from 8 herds located in North Central Florida...
2016: PloS One
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