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Multi drug resistance microorganism

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https://www.readbyqxmd.com/read/28625995/novel-antibiotic-resistance-determinants-from-agricultural-soil-exposed-to-antibiotics-widely-used-in-human-medicine-and-animal-farming
#1
Calvin Ho-Fung Lau, Kalene van Engelen, Stephen Gordon, Justin Renaud, Edward Topp
Antibiotic resistance has emerged globally as one of the biggest threats to human and animal health. Although the excessive use of antibiotics is recognized for accelerating the selection for resistance, there is a growing body of evidence suggesting that natural environments are "hotspots" for the development of both ancient and contemporary resistance mechanisms. Given that pharmaceuticals can be entrained onto agricultural land through anthropogenic activities, this could be a potential driver for the emergence and dissemination of resistance in soil bacteria...
June 16, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28610560/prevalence-and-molecular-characteristics-of-staphylococcus-aureus-including-methicillin-resistant-strains-isolated-from-bulk-can-milk-and-raw-milk-products-in-pastoral-communities-of-south-west-uganda
#2
Benon B Asiimwe, Rossella Baldan, Alberto Trovato, Daniela M Cirillo
BACKGROUND: Staphylococcus aureus strains are now regarded as zoonotic agents. In pastoral settings where human-animal interaction is intimate, multi-drug resistant microorganisms have become an emerging zoonotic issue of public health concern. The study of S. aureus prevalence, antimicrobial resistance and clonal lineages in humans, animals and food in African settings has great relevance, taking into consideration the high diversity of ethnicities, cultures and food habits that determine the lifestyle of the people...
June 13, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28584446/antimicrobial-activity-of-various-ethanolic-plant-extracts-against-pathogenic-multi-drug-resistant-candida-spp
#3
Shaista Khan, Mohd Imran, Mohammed Imran, Nuzhat Pindari
A total of 50 Candida isolates were isolated and identified from clinical specimens and these were tested for resistance to various antifungal drugs. It was observed multi-drug resistance in all candida isolates by 84%, 62%, 60%, 76%, 46, 30%, and 22% against fluconazole, clotrimazole, Amphotericin B, itraconazole, ketoconazole, miconazole and nystatin tested respectively. The isolates, which were found to be resistant to antifungal drugs were selected and subjected to antifungal testing against six ethanolic plants, extract namely Azadiracta indica, Allium sativum, Cordia dichotoma Ocimum sanctum, Syzygium cumini and Trigonella foenum grecum...
2017: Bioinformation
https://www.readbyqxmd.com/read/28577494/antibacterial-modulatory-activity-of-antibiotics-and-toxicity-from-rhinella-jimi-stevaux-2002-anura-bufonidae-glandular-secretions
#4
Débora Lima Sales, Maria Flaviana Bezerra Morais-Braga, Antonia Thassya Lucas Dos Santos, Antonio Judson Targino Machado, João Antonio de Araujo Filho, Diógenes de Queiroz Dias, Francisco Assis Bezerra da Cunha, Rogério de Aquino Saraiva, Irwin Rose Alencar de Menezes, Henrique Douglas Melo Coutinho, José Galberto Martins Costa, Felipe Silva Ferreira, Rômulo Romeu da Nóbrega Alves, Waltécio de Oliveira Almeida
The increase in microorganisms with resistance to medications has caused a strong preoccupation within the medical and scientific community. Animal toxins studies, such as parotoid glandular secretions from amphibians, possesses a great potential in the development of drugs, such as antimicrobials, as these possess bioactive compounds. It was evaluated Rhinella jimi (Stevaux, 2002) glandular secretions against standard and multi-resistant bacterial strains; the effect of secretions combined with drugs; and determined the toxicity using two biologic in vivo models, and a in vitro model with mice livers...
May 31, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28570651/polydim-i-antimicrobial-activity-against-mdr-bacteria-and-its-model-membrane-interaction
#5
Marisa Rangel, Fabíola Fernandes Dos Santos Castro, Lilian Daiene Mota-Lima, Patricia Bianca Clissa, Danubia Batista Martins, Marcia Perez Dos Santos Cabrera, Marcia Renata Mortari
The rapid spread of multi-drug resistant pathogens represents a serious threat to public health, considering factors such as high mortality rates, treatment restrictions and high prevalence of multi-drug resistant bacteria in the hospital environment. Antimicrobial peptides (AMPs) may exhibit powerful antimicrobial activity against different and diverse microorganisms, also presenting the advantage of absence or low toxicity towards animal cells. In this study, the evaluation of the antimicrobial activity against multi-drug resistant bacteria of a recently described AMP from wasp, Polydim-I, was performed...
2017: PloS One
https://www.readbyqxmd.com/read/28560237/elizabethkingia-miricola-a-rare-non-fermenter-causing-urinary-tract-infection
#6
Parakriti Gupta, Kamran Zaman, Balvinder Mohan, Neelam Taneja
Elizabethkingia miricola (E. miricola) is a gram-negative non-fermentative bacterium which is rarely encountered. It is usually misidentified or considered as a contaminant in routine microbiology laboratories due to the limitations in conventional biochemical techniques. However, with the advent of the matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS), the identification of non-fermenters has become easy and this has led to enhanced understanding of the clinical significance of these uncommonly isolated microorganisms...
May 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28512606/antimicrobial-activity-of-nigerian-medicinal-plants
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
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
#19
REVIEW
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
#20
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
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