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The mechanism of antibiotics - Main Page - OpenWetWare

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The mechanism of antibiotics - Main Page - OpenWetWare

There are several different underlying molecular mechanisms to antibiotic resistance, and I will explain the mechanism specific to ampicillin. * Ampicillin resistance is achieved by the cleavage of the beta-lactam ring by the beta-lactamase enzyme.

http://openwetware.org/images/8/85/Mechanism_of_antibiotics.ppt

Date added: December 14, 2011 - Views: 119

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Antibiotic Resistance - Case School of Dental Medicine

Objectives. Mechanisms of action for commonly prescribed antibiotics. Cell wall inhibitors – penicillins, cephalosporins, vancomycin. Protein synthesis disruption – tetracycline, clindamycin, aminoglycosides

http://dental.case.edu/students/grad/516/Antibiotic_Resistance.pptx

Date added: January 2, 2013 - Views: 33

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Antibiotic Resistance - University of Michigan

Antibiotic Resistance The Miracle Revoked? Wilson “Bill” Muse 10/29/2009 ... There are three known mechanisms of fluoroquinolone resistance. Some types of efflux pumps can act to decrease intracellular quinolone concentration.

http://www-personal.umich.edu/~muse/Antibiotic%20resistance.ppt

Date added: May 6, 2013 - Views: 44

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Mechanisms and Clinical Implications of Antimicrobial Resistance

Title: Mechanisms and Clinical Implications of Antimicrobial Resistance Author: thdellit Last modified by: thdellit Created Date: 11/18/2004 9:11:28 PM

http://depts.washington.edu/idhmc/print/Antimicrobial_Resistance_Fellows_2009.ppt

Date added: November 9, 2011 - Views: 91

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Mechanisms of action of Antibiotics

Decreased permeability to the antibiotic. ... Sulfonamides Trimethoprim plus sulfamethoxazole Advantages of sulfonamide-trimethoprim combination SULFONAMIDE-RESISTANCE Results from multiple mechanisms. Altered dihydropteroate synthetase.

http://webmedia.unmc.edu/medicine/scholar/antibioticmechanismsA.ppt

Date added: May 6, 2013 - Views: 41

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There are four major mechanisms that mediate bacterial ...

Antimicrobial Drugs: Resistance PREPARED BY MOHANAD ABU LIHIA There are four major mechanisms that mediate bacterial resistance to drugs . (4) Bacteria actively export drugs using a "multidrug resistance pump" (MDR pump, or "efflux" pump).

http://site.iugaza.edu.ps/elmanama/files/2010/02/Antimicrobial_Drugs_ResistanceM.ppt

Date added: September 24, 2012 - Views: 7

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PowerPoint Presentation

Antimicrobial resistance Antimicrobial resistance and susceptibility testing May 2007 Learning objectives At the end of the presentation, participants should: Identify antimicrobial susceptibility testing needs Understand standard antimicrobial susceptibility testing Interpret antimicrobial ...

http://www.who.int/ihr/lyon/surveillance/drug_resistance/ihr_l15antimicrobialresistance_en.ppt

Date added: February 3, 2012 - Views: 149

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CHAPTER 20 ANTIBIOTIC RESISTANCE - Kennesaw State ...

They are associated with different resistance mechanisms. β-lactamase resistance Erythromycin resistance Production of aminoglycosides Operation of efflux pumps Microbiology: ... OVERVIEW ANTIBIOTIC RESISTANCE DEVELOPMENT OF RESISTANCE ..DEVELOPMENT OF RESISTANCE DEVELOPMENT OF RESISTANCE: ...

http://science.kennesaw.edu/~pachar/BIOL%202261/Lecture_Chapter_20.ppt

Date added: October 6, 2011 - Views: 69

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Human Genome Project - John Wiley & Sons

Sources of Antibiotics Antibiotic Mechanisms Antibiotic Examples b-Lactam antibiotics (e.g., Penicillin): ... Examples of Resistance Mechanisms of Resistance Enzyme-based resistance–break down or modify antibiotic.

http://www.wiley.com/college/pratt/0471393878/instructor/activities/bacterial_drug_resistance/resistance.ppt

Date added: August 8, 2013 - Views: 11

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Antibiotic Resistance Mechanisms - GPVEC

Title: Antibiotic Resistance Mechanisms Author: Dee Griffin Last modified by: Dee Griffin Created Date: 8/9/2004 9:27:28 PM Document presentation format

http://gpvec.unl.edu/files/Environment/Griffin-EnviroIssues%26CAFO.ppt

Date added: June 27, 2013 - Views: 11

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Antibiotic Pressure and Resistance in Bacteria

Antibiotic Resistance in Bacteria Antibiotic Resistant Bacteria Are: Bacteria that mutate and are able to resist the antibiotics that are meant to kill them.

http://faculty.ksu.edu.sa/70917/Documents/antibiotics%20resistance.ppt

Date added: October 31, 2012 - Views: 10

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PowerPoint Presentation

ANTIMICROBIAL RESISTANCE 9.21.12 * P aeruginosa and Acinetobacter are often resistant to multiple antibiotic agents.1 Resistance can be due to one or more of several mechanisms within the same strains that include1,2: production of ESBLs or AmpC b-lactamases active removal of antibiotic agent ...

http://peds.stanford.edu/Rotations/infectious_disease/documents/Antibiotic%20Resistance9.12.ppt

Date added: October 17, 2013 - Views: 4

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Antibiotic Resistance - Cal State LA - Instructional Web ...

Antibiotic Resistance Antibiotics were introduced as therapeutic agents against bacterial disease starting in 1943 - Major classes of antibiotics attained widespread use by 1960’s

http://instructional1.calstatela.edu/pkrug/Bio%20or%20Chem%20444/Lecture%2014,%20antibiotic%20resistance.ppt

Date added: October 14, 2011 - Views: 84

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PowerPoint Presentation

Mechanisms of antibiotic resistance 1. Enzymatic destruction of drug 2. Prevention of penetration of drug 3. Alteration of drug's target site 4. Rapid ejection of the drug Resistance genes are often on plasmids or transposons that can be transferred between bacteria.

http://facweb.northseattle.edu/estavney/Bio260/PowerPoint%20Lectures/a16%20Antimicrobials.ppt

Date added: June 13, 2012 - Views: 66

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Emergence of Antimicrobial Resistance

Outline Recent trends in emerging antibiotic resistance Epidemiology of resistance Clinical Impact on resistance Strategies ... Only a minority of patients become colonized when cared for in a contaminated room 1 Elucidation of mechanisms of VRE acquisition Implement more effective infection ...

http://www.dsf.health.state.pa.us/health/lib/health/Epidemiology_of_Antimicrobial_Resistance.ppt

Date added: October 16, 2011 - Views: 114

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Lecture 20 — Pseudomonas & Related Nonfermenters

Mechanism of Action of Exotoxin A REVIEW Mechanisms of Antibiotic Resistance in Pseudomonas aeruginosa REVIEW Review of Burkholderia cepacia Diseases Associated with Burkholderia spp. REVIEW Review of Stenotrophomonas maltophilia Stenotrophomonas maltophilia (cont.) REVIEW Review of ...

http://www.life.umd.edu/classroom/bsci424/Lectures/LecturePP20Pseudomonas&Nonfermenters.ppt

Date added: November 5, 2011 - Views: 100

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Methicillin Resistant Staphylococcus Aureus

... selective pressures which mediates the acquisition of resistance Objective To gain a broader understanding of the resistance mechanisms and virulence factors involved with MRSA ... Objective Research A Timeline Of Antibiotic Resistance History Of S aureus Resistance The ...

http://www.science.smith.edu/departments/Biology/cwhitezi/360%20documents/Student%20presentations/Jennings-Spring-Final-MRSA.ppt

Date added: October 16, 2011 - Views: 74

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Antibiotic Resistance of Staphylococcus aureus Biofilms

Mechanisms of antibiotic resistance: Nutrient depletion refers to the idea that oxygen and nutrients may diffuse slowly through the biofilm resulting in a different environment in the biofilm’s interior.

http://www.vcu.edu/csbc/bbsi/people/students/0809/neerukonda_s/Final_Presentation_for_Summer_09-Smitha.ppt

Date added: October 26, 2012 - Views: 32

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Considerations for minimizing antibiotic resistance:

Considerations for minimizing antibiotic resistance: Analyzing current practice in the context of Pseudomonas aeruginosa resistance patterns Becky Carlson

http://www.uky.edu/~hadleyr/PA2007/Carlson.ppt

Date added: June 30, 2012 - Views: 18

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The Recombination Molecular Motor of Escherichia coli

Antibiotic Resistance Consequences & Mechanisms Scott F. Singleton, PhD UNC Eshelman School of Pharmacy [email protected] * * * * * * This chart illustrates what microbes and their offspring might encounter over time as they follow the same path from one hospital bed to another under two ...

http://courses.bio.unc.edu/2010Fall/Biol062/powerpoints/AntibioticResistance.ppt

Date added: January 27, 2012 - Views: 30

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Antibiotic Resistance in Microbes - Portland State University

Antibiotic Resistance in Microbes A few microbes to be concerned about How some antibiotics and Antimicrobials work Resistance mechanisms Some factors involved in resistance

http://alrlab.pdx.edu/media/MICROBES2.PPT

Date added: May 5, 2013 - Views: 13

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No Slide Title

Associated Antibiotic Resistance Among Common Hospital- and Community-Acquired ... A need for new antimicrobial agents with activity against resistant pathogens Associated Resistance Resistance mechanisms that affect multiple members of a class or subclass Resistance traits that may ...

http://www.fda.gov/ohrms/dockets/ac/03/slides/3931S2_01_Jorgensen.ppt

Date added: October 24, 2011 - Views: 20

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Antibiotic Stewardship (long) - Research and Teaching ...

Arbitrarily set by a committee Outline Introduction Key Terms Susceptibility Testing Methods Factors Contributing to Antibiotic Resistance Mechanisms of Resistance Clinical Examples Conclusion MIC = 6.25 mcg/mL Minimum Inhibitory Concentration Well Plate for MIC Testing Many Labs Use ...

http://www.wakehealth.edu/uploadedFiles/User_Content/SchoolOfMedicine/Departments/CAUSE/PPT_and_PDF_files/AS_Microbiology_and_Antibiotic_Resistance_Sep_2012.ppt

Date added: July 25, 2013 - Views: 22

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Lectures 7 & 8 Chemotherapy of Bacterial Infections

... nutrients Stability of drug Size of inoculum Length of incubation Metabolic activity of organisms Antibiotic Mechanisms of Action ... Mechanism of Action Mechanism of Action Mechanism of Action Mechanism of Action Resistance Physiological Mechanisms Resistance Physiological ...

http://www.life.umd.edu/classroom/bsci424/Lectures/LecturePP7&8Antibiotics.ppt

Date added: October 11, 2011 - Views: 53

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Conjugative DNA transfer, antibiotic resistance and MDR bacteria

Conjugative DNA transfer, antibiotic resistance and MDR bacteria Antibiotics ... How did that 1st drug resistant bug arise? A couple of pieces of information Can you think of other mechanisms of drug resistance?

http://courses.bio.unc.edu/2010Fall/Biol062/powerpoints/MatsonMDR.ppt

Date added: January 28, 2013 - Views: 8

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ANTIMICROBIAL RESISTANCE - ksg.ly

Bacterial Mechanisms of Antibiotic Resistance 1. Production of enzymes that destroy the antibiotic before it reaches its target. b-lactamases: In G -ve: ...

http://www.ksg.ly/PowerPoint/Lectures/ANTIMICROBIAL%20RESISTANCE.ppt

Date added: May 26, 2013 - Views: 9

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Mechanisms of Evolution - Cochise College

Mechanisms of Evolution 16.1 Causes of microevolution What is microevolution? Evolution within a population Example: industrial melanism Best current day examples antibiotic resistance Flu virus What are some causes of microevolution—1?

http://skywalker.cochise.edu/ashraft/web/BIO%20156/PPT/16_mechanisms_of_evolution.ppt

Date added: May 3, 2013 - Views: 10

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How Antibiotics Work - Westwood Collegiate

Mechanisms of Action Most antibiotics act by selectively interfering with the synthesis of one of the large-molecule constituents of the cell—the cell wall or proteins or nucleic acids. ... and these can transfer multiple antibiotic resistance between very dissimilar species of bacteria.

http://westwood.sjsd.net/~shoesmith/FOV1-0004A5C3/FOV1-0004ADCA/FOV1-0004AE55/Antibiotics.ppt

Date added: May 12, 2013 - Views: 7

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Antibiotics - UP Ol

Antibiotics I. Consequences of inappropriate antibiotic therapy Inappropriate antibiotic therapy can lead to increases in: mortality morbidity resistance selection Inappropriate antibiotic therapy can be defined as: ineffective empiric treatment of bacterial infection the wrong choice, dose or ...

http://www.lf.upol.cz/fileadmin/user_upload/LF-kliniky/mikrobiologie/general_medicine/Antibiotics_I_web.ppt

Date added: December 21, 2013 - Views: 4

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Implementing Antimicrobial Stewardship at HIS – It Must Be Done

Objectives. Classify key mechanisms of bacterial antimicrobial resistance. Distinguish current trends in antimicrobial resistance. Summarize the role of Antimicrobial Stewardship Programs

http://phscof.org/docs/presentations2012/Thursday/Pharmacy/Gildow2012_Antimicrobial%20Resistance%20Curbing%20the%20Current%20Public%20Health%20Problem.pptx

Date added: May 4, 2013 - Views: 9

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Chapter 16 - Enterobacteriaceae - Austin Community College ...

Antibiotic Mechanisms of Action and Resistance MLAB 2434 – Microbiology Keri Brophy-Martinez * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Overview Antimicrobial Therapy Broad term for use of chemical compounds to treat diseases caused by microorganisms Antimicrobial agents ...

http://www.austincc.edu/mlt/micro/micro_notes_Antimicrobial_Mechanisms_13_STUDENT.ppt

Date added: August 28, 2013 - Views: 10

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No Slide Title

Mechanisms of antimicrobial action directed against the bacterial cell wall and corresponding resistance mechanisms M-4 Advanced Therapeutics Course

http://med.umich.edu/lrc/therademo/course_topics_refs/refs/infection/mechanisms/CellWallAgents.ppt

Date added: December 27, 2013 - Views: 3

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Antibiotic mechanisms - University of Chicago

Antibiotic mechanisms Author: Ken Alexander Last modified by: Ken Alexander Created Date: 2/25/2003 5:00:11 PM Document presentation format: On-screen Show Company: Duke University Other titles:

http://pediatrics.uchicago.edu/chiefs/documents/SortingOutAntibioticsHandout.ppt

Date added: October 5, 2011 - Views: 30

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Antibiotic Selection - Winston-Salem/Forsyth County Schools

Antimicrobial Drug Resistance Mechanisms Altered permeability Altered influx Mutation in a transporter necessary to import antibiotic can lead to resistance.

http://www.wsfcs.k12.nc.us/cms/lib/NC01001395/Centricity/Domain/3098/Biotech%20II/Unit%20A%20Laboratory%20Research/Antibiotics.ppt

Date added: May 3, 2013 - Views: 12

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Appropriate Use of Antibiotics - University of Pittsburgh

CDC Educational Activities to Combat Antimicrobial Resistance Activities to Prevent Antibiotic Resistance in Foodborne ... resistance as an emerging and global problem Human health consequences of agricultural use of antimicrobial agents Antibiotic classes, mechanisms of resistance ...

http://www.pitt.edu/~super4/Vet/vet0221.ppt

Date added: May 3, 2013 - Views: 9

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Antibiotic resistance - Queen Mary University of London

Mechanisms of resistance 1. Antibiotic modification: some bacteria have enzymes that cleave or modify antibiotics: e.g. b lactamase inactivates penicillin 2. Denied access: membrane becomes impermeable for antibiotic: e.g. imipenem 3.

http://chittkalab.sbcs.qmul.ac.uk/chittkalab/Teaching/evolution/antibiotics.ppt

Date added: October 9, 2011 - Views: 50

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Principles and Definitions - University of South Carolina

Antimicrobial Drug Resistance Mechanisms Altered permeability Altered influx Mutation in a transporter necessary to import antibiotic can lead to resistance.

http://pathmicro.med.sc.edu/2010-bactppt/29%20Antibiotics%2010.ppt

Date added: August 24, 2013 - Views: 16

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Introduction to Antibacterial Therapy - CareGate

Outline Basic Clinical Bacteriology Antibiotics Categories Pharmacology Mechanisms of Resistance Antibiotic Stewardship “Pearls” Scheme for the Four Major Classes of Bacterial Pathogens in Hospitalized Patients Gram Positive Cocci Gram Negative Rods Fastidious Gram Negative Organisms ...

http://phdres.caregate.net/conferences/AY%2013-14%20PPT%20Presentations/Introduction%20to%20Antibacterial%20Therapy%20071113.ppt

Date added: July 25, 2013 - Views: 14

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Antibiotic resistance and medicinal drug policy

Antibiotic Resistance and Medicinal Drug Policy Dr. Ken Harvey School of Public Health, La Trobe University, Melbourne, Australia * Lecture outline Why the concern about antibiotic resistance?

http://www.pitt.edu/~super7/1011-2001/1811.ppt

Date added: October 7, 2011 - Views: 34

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hauger(2) - Texas Department of State Health Services

Antibiotic Pressure and Resistance in Bacteria Sarmistha B. Hauger M.D. Director, Pediatric Infectious Disease Children s Hospital of Austin Austin, Texas Antibiotic Pressure and Resistance in Bacteria What is it and why is it important? How extensive is it? How does it happen? What factors ...

http://www.dshs.state.tx.us/idcu/health/antibiotic_resistance/educational/hauger.ppt

Date added: October 18, 2011 - Views: 38

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Modelling and Control Issues Arising from Antibiotic ...

Antibiotic Resistance Most enterococci have inherent resistance to various drugs Cephalosporins Semi-synthetic ... Development of Multi-drug Resistance Variety of different mechanisms for bacterial mating Pheromone responsive plasmids Broad host-range plasmids Transfer among ...

http://math.la.asu.edu/~kuang/workshop/Horn.ppt

Date added: May 20, 2012 - Views: 10

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Antimicrobial Therapy - University of Northern Colorado

... no such antibiotic exists Mechanisms of action Cell wall synthesis inhibitors Cell ... compete with PABA for the active site of DHPS Nucleic Acid Synthesis Inhibitors DHPS Resistance to Antimicrobial Drugs Mechanisms of resistance Enzymes that cleave or otherwise inactivate ...

http://www.unco.edu/schountz/Path_Micro_files/10%20Antimicrobial%20Therapy.ppt

Date added: August 28, 2013 - Views: 9

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Peran Uji Mikrobiologi

Peran Uji Mikrobiologi & sensitivitas test MMDEAHHapsari UKK –IPT- IDAI * * * * Bacteria have evolved numerous mechanisms to evade antimicrobial drugs.

http://xa.yimg.com/kq/groups/15854266/773899838/name/Peran+Uji+Mikrobiologi++dan+sensitivitas+tes.ppt

Date added: November 18, 2013 - Views: 15

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Antibiotics - Middle East Critical Care Assembly

Lowy, Franklin D. Mechanisms of Antibiotic Resistance in Staphylococcus aureus. Up To Date (12.3). 2004. Richard, Grady. Safety profile of quinolone antibiotics in the pediatric population. The Pediatric Infectious Disease Journal. 22(12 ...

http://www.mecriticalcare.net/downloads/lectures/Antibiotics.ppt

Date added: May 7, 2013 - Views: 10

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Antimicrobial Drugs - Miami Dade College

Mechanisms of antibiotic resistance 1. Enzymatic destruction of drug 2. Prevention of penetration of drug 3. Alteration of drug's target site 4. Rapid ejection of the drug Resistance genes are often on plasmids or transposons that can be transferred between bacteria.

http://faculty.mdc.edu/sbutler/MCB%202013/Antimicrobial%20Drugs.ppt

Date added: October 18, 2011 - Views: 37

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Antimicrobials 2: - Trinity College, Dublin

Antimicrobials 3: Resistance Dr Fiona Walsh Objectives of lecture Genetics of resistance Mechanisms of resistance Current and future problems What’s new About Resistance?

http://www.maths.tcd.ie/~ecoli/Lectures/3MLecture3.ppt

Date added: January 27, 2012 - Views: 9

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Antimicrobials

Resistance to antimicrobial agents Innate resistance (insensitivity) Phenotypic adaptation Mutation Antibiotic resistance genes Inactivation of antibiotic Active efflux of antibiotic Alteration of target site Metabolic bypass Mechanisms of antibiotic resistance Resistance genes: Inactivation of ...

http://elearning.najah.edu/OldData/pdfs/6426Antibiotics_2.ppt

Date added: July 28, 2013 - Views: 3

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Antibacterial Agents - Yola

Resistance stems from the methylation of the 23's ribosomal RNA which prevents binding of the antibiotic. Other mechanisms include ... destruction of drug Prevention of penetration of drug Alteration of drug's target site Rapid ejection of the drug Mechanisms of Antibiotic Resistance ...

http://jude2010.yolasite.com/resources/Micro./Antibacterial%20Agents.ppt

Date added: September 8, 2013 - Views: 5

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Biofilms, resistenza agli antibiotici ed implicazioni per la ...

The fact that all these antibiotic resistance mechanisms are inherently multicellular helps to explain why bacteria dispersed from biofilms rapidly revert to a susceptible phenotype” * * * * * * * * * * Title:

http://www.allegriallergia.org/congresso_2008/rel/coticchia.pps

Date added: August 3, 2013 - Views: 7

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Active Efflux in Clinically-Important Gram-Negative Bacteria

Role of the Efflux Pumps in Antimicrobial Resistance in E. coli Patrick Plésiat Bacteriology Department Teaching Hospital Besançon, France Bacterial targets for antibiotics Main resistance mechanisms to drugs Gram-negative species with known efflux systems Efflux mechanisms: practical ...

http://www.unil.ch/webdav/site/cnfmi/shared/abstracts_and_lectures/PPlesiat.ppt

Date added: November 12, 2011 - Views: 43