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Drugs Antimicrobial Chemotherapy The use of drugs to treat a disease Antimicrobial drugs Interfere with the growth of microbes within a host Antibiotic Substance produced by a microbe that, in small amounts,inhibits another microbe Selective toxicity A drug that kills harmful microbes without damaging the host 1928 Fleming discovered penicillin, produced by Penicillium. 1940 Howard Florey and Ernst Chain performed first clinical trials of penicillin. Figure 20.1 Table 20.1 Table 20.2 The Action of Antimicrobial Drugs Broad-spectrum - may kill normal microbiota Superinfection - opportunistic infections Bactericidal Bacteriostatic Figure 20.2 Antibacterial Antibiotics Inhibitors of Cell Wall Synthesis Penicillin Natural penicillins Semisynthetic penicillins Penicillins Figure 20.6 Antibacterial Antibiotics Inhibitors of Cell Wall Synthesis Penicillin derivatives Penicilinase-resistant penicillins Extended-spectrum penicillins Penicillins + -lactamase inhibitors Carbapenems Monobactam Penicillinase or beta-lactamase Figure 20.8 Antibacterial Antibiotics Inhibitors of Cell Wall Synthesis Cephalosporins 2nd, 3rd, and 4th generations more effective against gramnegatives Figure 20.9 Antibacterial Antibiotics Inhibitors of Cell Wall Synthesis Polypeptide antibiotics Bacitracin Topical application Against gram-positives Vancomycin Glycopeptide Important "last line" against antibiotic resistant MRSA S. aureus Antibacterial Antibiotics Inhibitors of Cell Wall Synthesis Antimycobacterium antibiotics (i.e., TB) Isoniazid (INH) Inhibits mycolic acid synthesis Ethambutol Inhibits incorporation of mycolic acid Antibacterial Antibiotics Inhibitors of Protein Synthesis Chloramphenicol Broad spectrum Binds 50S subunit, inhibits peptide bond formation Aminoglycosides Streptomycin, neomycin, gentamycin Broad spectrum shape Changes of 30S subunit Figure 20.4 Antibacterial Antibiotics Injury to the Plasma Membrane Polymyxin B Topical Combined with bacitracin and neomycin in overthe-counter preparation Antibacterial Antibiotics Inhibitors of Nucleic Acid Synthesis Quinolones and fluoroquinolones Ciprofloxacin Inhibits DNA gyrase Urinary tract infections Antibacterial Antibiotics Competitive Inhibitors Sulfonamides (Sulfa drugs) Inhibit folic acid synthesis Broad spectrum Figure 5.7 Figure 20.13 Antiviral Drugs Nucleoside and Nucleotide Analogs Figure 20.16a Antiviral Drugs Nucleoside and Nucleotide Analogs Figure 20.16b, c Antiviral Drugs Enzyme Inhibitors Protease inhibitors Indinavir HIV Inhibit attachment Zanamivir Influenza Inhibit uncoating Amantadine Influenza Interferons prevent spread of viruses to new cells Viral hepatitis Antibiotic Resistance A variety of mutations can lead to antibiotic resistance. Mechanisms of antibiotic resistance 1. 2. 3. 4. Enzymatic destruction of drug Prevention of penetration of drug Alteration of drug's target site Rapid ejection of the drug (efflux pumps) Resistance genes are often on plasmids or transposons that can be transferred between bacteria. Antibiotic Resistance Misuse of antibiotics selects for resistance mutants. Misuse includes: Using outdated, weakened antibiotics Using antibiotics for the common cold and other inappropriate conditions Use of antibiotics in animal feed Failure to complete the prescribed regimen Using someone else's leftover prescription The Future of Chemotherapeutic Agents Antimicrobial peptides Broad spectrum antibiotics from plants and animals Squalamine (sharks) Protegrin (pigs) Magainin (frogs) Antisense agents Complementary DNA or peptide nucleic acids that binds to a pathogen's virulence gene(s) and prevents transcription
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bios 213 lecture 11
Path: N. Illinois >> BIOS >> 231 Spring, 2008
Description: Specific Defenses of the Host: The Immune Response Innate (nonspecific) Defenses against any pathogen Immunity Specific antibody and lymphocyte response to an antigen Antigen (Ag) A substances that causes the body to produce specific antibodies o...
bios 213 lecture 12
Path: N. Illinois >> BIOS >> 231 Spring, 2008
Description: Disorders Associated with the Immune System Infection and immunosuppression are failures of the immune system. Superantigens cause release of cytokines that cause adverse host responses. Allergies and transplant rejection are harmful immune reacti...
chapter2
Path: University of Alberta >> STAT >> 151 Fall, 2007
Description: CHAPTER 2: DISPLAYING AND DESCRIBING DATA 2.1 Variables Consider a class of 30 students: . . Gender (male, female) Hair color (blond, brown, black,.) Height (in feet, inches) Weight (in pounds) Age (in years) Variable any characteristic of a pers...
Test 2 Geography 20502
Path: LSU >> GEOG >> 2050 Spring, 2008
Description: Test 2 Geography 2050 Geog 2-08-08 Solar Radiation is the primary heat source for the Atmosphere, it\'s the primary fuel for it and our weather We must balance between. Insolation is incoming solar radiation Absorption of terrestrial radiation by atmo...
chapter3
Path: University of Alberta >> STAT >> 151 Fall, 2007
Description: CHAPTER 3: EXPLORING RELATIONSHIPS 3.1 Response and Explanatory Variables What is the nature of the relationship? Which variable influences which? X Y (X influences Y) X = explanatory variable, Y = response variable. Age Pet ownership Blood Pressure...
Java_Tutorial
Path: Brandeis >> COSI >> 31a Spring, 2008
Description: Java, Linux, Emacs Tutorial COSI 31A 01/24/2008 Outline Simple java program Loops and statements Classes and objects Strings, Arrays, Vectors Inheritance Interfaces and Abstract classes Exceptions Linux commands Emacs 1 Java First Java ...
04. Equity Kidd version
Path: Old Dominion >> ECI >> 301 Fall, 2007
Description: What would you do? Ashley is a wiz at math. She \"gets\" everything instantly. It usually takes her only five minutes to do her math homework. Nick, on the other hand, struggles with math. He labors over math problems, sometimes for hours. Should...
case study
Path: LSU >> BLAW >> 3201 Spring, 2008
Description: case study chapter 7 State Farm Mutual automobile insurance v Campbell the question is whether, in the circumstances we shall recount, an award of 145 million in punitive damages where full compensatory damages are 1 million, is excessive an in viola...
hw2
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 1.3 18. 20. a. b. 52. Section 2.1 8. ...
chapter4
Path: University of Alberta >> STAT >> 151 Fall, 2007
Description: CHAPTER 4: PRODUCING DATA 4.1 Introduction How to verify the following statements? 1. 2. Pet owners are less likely to die of coronary heart disease. Regular large doses of vitamin C reduce the chance of getting a common cold. Response variable a v...
Geography
Path: LSU >> GEOG >> 2050 Spring, 2008
Description: Geography The science of geography Geography o The science that studies the relationships among natural systems, geographic areas, society, cultural activities, and the interdependence of all these over space Spatial- the nature and character of phy...
05. Accountability Kidd version
Path: Old Dominion >> ECI >> 301 Fall, 2007
Description: What do you think? Mrs. Bright is getting a huge bonus ($5,000) this year. Her fourth graders moved from an initial 3.1 grade eqivalency score in math at the start of the year to 5.0 at the end. Mr. Bummer works in another school across town. H...
series_solution1_examples_p2
Path: New Mexico >> CHNE >> 525 Fall, 2008
Description: 2 Series Solutions to Linear Ordinary Differential Equations II Examples: Solutions about an Ordinary Point yx c0 1 1 3 x 3 2 1 6 5 3 2 x6 c1 x 1 4 x 4 3 1 x7 7 6 4 3 This gives two solutions 1 3 1 1 y1 x 1 x x6 x9 3 2 6 5 3 2 9 8 6 5 3 2 1 ...
hw3
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 2.1 6. 20. 22. Section 2.4 4. 6. ...
chapter5
Path: University of Alberta >> STAT >> 151 Fall, 2007
Description: CHAPTER 5: PROBABILITY 5.1 What is probability? Random experiment results in one of a number of possible outcomes. The outcome that occurs cannot be predicted with certainty. Examples: Tossing a coin, rolling a die. Sample Space (S) - the list of a...
power_series_ode_solution1
Path: New Mexico >> CHNE >> 525 Fall, 2008
Description: Series Solutions to Linear Ordinary Differential Equations I Power Series Solution for the Harmonic Oscillator Equation : ODE: Transform independent variable Transform derivatives d2y dx 2 2 y 0 x dy dy d dx d dx d2y dx 2 d2y dx 2 dy d d dx 2 ...
hw6
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 5.1 10. and are perpendicular when . So, Section 5.2 2. 6. 16. ...
hw8
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 6.2 2. 6. 12. 14. ...
hw1a
Path: Brandeis >> COSI >> 30a Spring, 2008
Description: Michael Sipser Introduction To The Theory Of Computation 2nd Edition Chapter 0 (0.3) a. b. c. d. e. f. (0.5) (0.6) 1 2 3 4 5 (0.8) 6 7 6 7 6 1 2 3 4 5 6 7 8 9 10 10 10 10 10 10 7 8 9 10 6 7 7 8 8 9 9 8 7 6 10 6 6 6 6 6 a. b. c. d. e. 1 4 (0.10...
hw4
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 2.3 4. 6. 16. 20. ...
hw1
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 1.2 2. 4. 6. 8. ...
hw5
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 3.3 2. Redundant vectors: Basis of image: Basis of kernel: 4. Redundant vectors: none Basis of image: Basis of kernel: 6. Redundant vectors: Basis of image: Basis of kernel: 8. R...
hw7
Path: Brandeis >> MATH >> 15a Spring, 2008
Description: Otto Bretscher Linear Algebra with Applications 3rd Edition Section 6.1 10. By Sarrus\'s rule, is invertible. 24. is not invertible when , which is when . 32. By Fact 6.1.6, 44. For an matrix , : For any : For any matrix . , , , so . , so Th...
05series_solution2_frobenius_examples
Path: New Mexico >> CHNE >> 525 Fall, 2008
Description: Series Solutions to Linear Ordinary Differential Equations III Examples: Frobenius\' Solution about Regular Singular Points Text Example 2, pp. 253, 3rd ed Text Example 2, pp. xxx, 2nd ed ODE: 3xy\' \' y\' y 0 1 1 Standard form: y\' \' y\' y 0 3x 3x 1 Px 3x...
frobenius_p3
Path: New Mexico >> CHNE >> 525 Fall, 2008
Description: Series Solutions to Linear Ordinary Differential Equations III 3 Method of Frobenius Note: The indicial equation yields tow values for r. These are labeled r1 and r2 . By convention we take r1 to be the larger root r1 r2 . We get some information abo...
chapter1
Path: University of Alberta >> STAT >> 151 Fall, 2007
Description: CHAPTER 1: INTRODUCTION 1.1 What is Statistics? Questions to explore: 1. What is the population of Canada? What is the population of Alberta? Canada: 31,612,897, Alberta: 3,306, 359 (2006). Census (every member of the population counted). Also data c...
ProblemSet-6-2005
Path: New Mexico >> CHNE >> 524 Fall, 2008
Description: NE-524 Interaction of radiation with Matter Problem Set #6 (Complete by 11/20/2005) 1) Aluminum bronze, an alloy containing 90% Cu and 10% Al by weight has a density of 7.6 g/cc. What are the linear and mass attenuation coefficients? ( Cu = 9.91 and ...
frobenius
Path: New Mexico >> CHNE >> 525 Fall, 2008
Description: Series Solutions to Linear Ordinary Differential Equations III Method of Frobenius ODE for a 2nd order linear differential equation with a regular singular point x x 0 2 y \' \' x x 0 p x y\' q x y 0 This requires p(x) and q(x) are analytic at x x 0 Me...
ProblemSet-4-2005
Path: New Mexico >> CHNE >> 524 Fall, 2008
Description: NE-524 Interaction of radiation with Matter Problem Set #4 (Complete by 11/6/2005) 1) Give 1 gram of At-218 (T1/2 = 1.5 seconds), and assuming that all the alphas (E=6.694 MeV) interact with an Aluminum absorber in 0.1 seconds, how much energy is dep...
ProblemSet-5-2005
Path: New Mexico >> CHNE >> 524 Fall, 2008
Description: NE-524 Interaction of radiation with Matter Problem Set #5 (Complete by 11/13/2005) 1) A beam of 0.52 MeV electrons pass into a large reservoir of He at 3 atm pressure, 20 oC (electrons are totally absorbed). a) What is the range of the electrons? b)...
04terminology_ideal_rocket07
Path: New Mexico >> CHNE >> 515 Fall, 2006
Description: Rocket Terminology Total Impulse: The integral of thrust over time tb IT 0 Fdt where t b is the burn time. I T Ft b Constant thrust Specific Impulse: Total impulse divided by the weight of propellant burned tb Fdt Is g0 0 0 tb m dt Constant thr...
02fluid_eqns07part1
Path: New Mexico >> CHNE >> 515 Fall, 2006
Description: FLUID MODELS: Part 1 Basic Equations Consider a control volume of volume V fixed in space. Fluid is free to cross the surface of the volume. A surface element is denoted as dA and a unit normal vector outward from the surface is ^ denoted by n . u ...
03fluid_eqns07part2
Path: New Mexico >> CHNE >> 515 Fall, 2006
Description: FLUID MODELS: Part 2 Reduced Equations Splitting the energy equation: We can use the momentum equation and the continuity equation to write the energy equation in a shorter form. First take the dot product of u with the Du u p differential form o...
01rocket_eqn_momentum07
Path: New Mexico >> CHNE >> 515 Fall, 2006
Description: Thrust Equation - Momentum Transfer Consider a vehicle made up of mass m m moving at velocity v at time t. At time t t mass m has been ejected from the vehicle with a relative velocity v 2 so that m has a velocity v v 2 . The velocity of mass ...
05quasi1d_thrust_eqn_cv07
Path: New Mexico >> CHNE >> 515 Fall, 2006
Description: Steady Quasi-One Dimensional Flow Consider the control volume shown below. We will consider steady quasi-one-dimensional flow through the volume. Material enters the control volume at the inlet of area A1 with velocity v1 at pressure p1 , mass densit...
ENES102 hw 1
Path: Maryland >> ENES >> 102 Spring, 2008
Description: Problem 1.2: Problem 1.3: Problem 1.14: - Problem 1.16: Problem 1.21(a,f): -- Problem 1.22: Problem 1.27: Problem 1.28(a,d): ...
History_80_fullsyllabus[1]
Path: UCSB >> HIST >> 80 Spring, 2008
Description: History 80: East Asian Civilization Spring Quarter 2008 T-TH 9:30-10:45, Buchanan Hall, 1910 Sections as assigned. Instructor: Anthony Barbieri-Low HSSB 4225 805-893-4065 (no msg.) barbieri-low@history.ucsb.edu Office Hours: Tues. 12:30-2:30 TA\'s: ...
ENES102 hw 2
Path: Maryland >> ENES >> 102 Spring, 2008
Description: Problem 2.16: Problem 2.17: Problem 2.18: - Problem 2.19: Problem 2.21: Problem 2.22: Problem 2.25: Problem 2.26: Problem 2.33: - Problem 2.34: Problem 2.37(a): Problem 2.37(b): Problem 2.38(a): Problem 2.39(b): Problem 2.39(d): Prob...
ENES102 hw 3
Path: Maryland >> ENES >> 102 Spring, 2008
Description: Problem 3.6: Problem 3.7: Problem 3.9: Alternate Method: Problem 3.10: Problem 3.11: Problem 3.16: Problem 3.18: Problem 3.18 - Alternate Method: Problem 3.19: Problem 3.19 - Alternate Method: Problem 3.21: Problem 3.22: Problem 3.23: P...
ENES102 hw 6
Path: Maryland >> ENES >> 102 Spring, 2008
Description: Problem 6.8: Problem 6.10: Problem 6.12: Problem 6.13: Problem 6.13: (con\'t) Problem 6.17: Problem 6.20: Problem 6.23: Problem 6.23: (con\'t) Problem 6.25: Problem 6.26: Problem 6.27: Problem 6.30: Problem 6.31: Problem 6.35: ...
ENES102 hw 4
Path: Maryland >> ENES >> 102 Spring, 2008
Description: Problem 4.1: Problem 4.4: Problem 4.6: Problem 4.7: Problem 4.9: Problem 4.13: Problem 4.18: -- Problem 4.19: Problem 4.22: Problem 4.25: Problem 4.27: Problem 4.27: (con\'t) Problem 4.28: Problem 4.31: Problem 4.32: Problem 4.35: Pro...
CSDL1P1
Path: Syracuse >> CSD >> 315/615 Spring, 2008
Description: Anatomy 615 Index cards: Why did you enroll in this course? What do you expect to gain from this course? What are your concerns about the course? 1 CSD 315 ...
06. Obsolescence Kidd Version
Path: Old Dominion >> ECI >> 301 Fall, 2007
Description: Are dinosaurs cold-blooded or warm? What did you learn in school? From books? Dinosaur ectothermy (cold-bloodedness) remained a prevalent view until Robert T. \"Bob\" Bakker, an early proponent of dinosaur endothermy (warmbloodedness), published...
history80Essay1[1]
Path: UCSB >> HIST >> 80 Spring, 2008
Description: History 80: East Asian Civilization Spring 2008 Essay no. 1: DUE IN LECTURE: TUESDAY, APRIL 22, 2008 Your first essay will be an exercise in creative historical fiction, drawing from the lecture on the Warring States\' philosophers and from the passag...
Principles_of_Statistics_-_Exam_1
Path: CUNY City >> ECONOMICS >> 290 Spring, 2007
Description: Principles of Statistics First Examination Fall 2007 Name: Date: Instructions: Answer ALL the questions in the blue book. There is no need to write an explanation for the true or false questions or for the multiple-choice questions. For the problems...
212624
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
CSDL1P2
Path: Syracuse >> CSD >> 315/615 Spring, 2008
Description: Anatomy Of Respiration Respiration Respiration Inspiration Inhalation Breathing in Brings oxygen to the body\'s cells Expiration Exhalation Breathing out Eliminates waste products 1 Boyle\'s Law Pressure =force distributed over area P=F/A An incre...
Principles_of_Statistics_-_Exam_2
Path: CUNY City >> ECONOMICS >> 290 Spring, 2007
Description: Principles of Statistics Second Examination Fall 2007 Name: Date: Instructions: Answer ALL the questions in the blue book. There is no need to write an explanation for the true or false questions or for the multiple-choice questions. For the problem...
212655
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
PStats_-_H3_-_GH
Path: CUNY City >> ECONOMICS >> 290 Spring, 2007
Description: Homework PRINCIPLES OF STATISTICS 3 Spring 2008, Homework 3 Name 1: Name 2: Name 3: Name 4: Name 5: Instructions This homework consists of 5 questions. You must provide interpretations of your answers, not just calculations. The homework is due ...
212717
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
212852
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
PStats_-_H4_-_GH
Path: CUNY City >> ECONOMICS >> 290 Spring, 2007
Description: Homework PRINCIPLES OF STATISTICS 4 Spring 2008, Homework 4 Name 1: Name 2: Name 3: Name 4: Name 5: Instructions This homework consists of 7 questions. You must provide interpretations of your answers, not just calculations. The homework is due ...
103EX2-practice_ans
Path: CUNY City >> CHEM >> 103 Spring, 2007
Description: THE CITY COLLEGE Department of Chemistry Chemistry 103 ANSWERS TO PRACTICE EXAMINATION II Work problems out to the correct number of significant figures! 1. (8 pts) a) In the SI system , the derived units for pressure in Pascals are kg/m .s2 . b) Ch...
212808
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
213541
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
212744
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
212830
Path: Texas >> BIO >> 325 Spring, 2008
Description: ...
urban anthro study guide 2
Path: Bucknell >> EDUC >> 243 Winter, 2008
Description: Urban Anthro. STUDY GUIDE 2 Urbanism- UL (61-63) Definitions of City How does a person define the concept of a city? Where exactly is the line drawn between city, suburb, and rural areas? Personal reference is a subjective way to define a city. Where...
learnring log 2
Path: Bucknell >> EDUC >> 243 Winter, 2008
Description: Learning Log 2 Knowledge It is necessary to understand how children grow and develop to realize how to effectively teach, and in the second chapter of the text, the Piaget, Vygotsky, and Erikson views of cognitive, personal and social development are...
learning log 10
Path: Bucknell >> EDUC >> 243 Winter, 2008
Description: Learning Log 10 Knowledge The main idea of chapter 10 is that motivation, which is an internal process that activates, guides, and maintains behavior over time, is critically important for students and teachers in the classroom. Theories of motivatio...
learning log 3
Path: Bucknell >> EDUC >> 243 Winter, 2008
Description: Learning Log: Chapter 3 Knowledge The main idea is that children develop physically through changes in muscle development at early ages and later in life through puberty, mentally by becoming fully literate, socially with peer interaction and cogniti...
urban anthropolgy study guide 1
Path: Bucknell >> ANTHRO >> 290 Winter, 2008
Description: URBAN ANTHROPOLOGY-STUDY GUIDE EXAM 1 Urban Danger: Life in a Neighborhood of Strangers Sally Engle Merry pp.115-126 Ethnographic study of a multiethnic housing project in a high-crime neighborhood shows how the boundaries between social groups cont...
162C HW_2
Path: UCSB >> ECE >> 162c Spring, 2008
Description: ECE 162C: PROBLEM SET #2 DUE WEDNESDAY, APRIL 16, 2008 PROBLEMS: 1. Derive an expression for the confinement factor of single mode fibers defined as the fraction of the total mode power contained inside the core . Use the Gaussian approximation for...
HW_Set_13_1
Path: LSU Shreveport >> CHEM >> 121 Fall, 2008
Description: ...
CSDL3
Path: Syracuse >> CSD >> 315/615 Spring, 2008
Description: Anatomy Of Respiration Structures of Respiration Bony thorax Visceral thorax Muscles 1 The Rib Cage Forms the front, sides, and back of the bony thorax Mobility Consists of 12 thoracic vertebrae Sternum 12 pairs of ribs The Rib Cage 2 The Ribs ...
HW_Set_13_2
Path: LSU Shreveport >> CHEM >> 121 Fall, 2008
Description: ...
HW_Set_14_1
Path: LSU Shreveport >> CHEM >> 121 Fall, 2008
Description: ...
HW_Set_14_2
Path: LSU Shreveport >> CHEM >> 121 Fall, 2008
Description: ...
jjjournal1
Path: Kutztown >> CRJ >> 221 Spring, 2008
Description: Dr. Khondaker Juvenile Justice System Journal Entry #1 1. Having a separate justice system for juveniles can be traced back all the way to common law in England. They stated that children under seven should not face legal punishments. However, in the...