CHAPTER 12
  

Drugs, Microbes, Host Elements of Chemotherapy 


Contents


I. Critical Thinking Questions

 

History
 

What you should know on antimicrobial drug groups
  Causative microbial agents of disease

  •  Bacteria
  •  Fungi
  •  Protozoa
  •  Helminths
  •  Viruses

II. Technical terms

III. Search related internet sites

  •   Antibiotics
  •   Antibiotic resistance
  •   Fluoroquinolones
  •   Bacterial infections
  •   Fungal infections
  •   Helminthic infections
  •   Viral infections


I.   Critical Thinking Questions

History 

  •   Discuss the meaning of the Greek word Pharmakeutikos
  •   Be sure to know Robert Koch's postulates
  •   What was the contribution of Paul Ehrlich to chemotherapy?
  •   Explain what is "salvarsan"
  •   Contribution of Gerhard Domagk to chemotherapy
  •   How does a sulfa drug work in the human body?
  •   Describe how Alexander Fleming discovered penicillin
  •   What did Howard Florey and Ernst Chain prove?

What you should know on antimicrobial drug groups

  • Mechanisms that explain how bacteria become resistant to antibiotics
  • Source of penicillin
  • How does penicillin work on bacteria?
  • Draw the molecular structure of penicillin and indicate its major parts
  • What are semisynthetic penicillins?
  • List main penicillase-resistant penicillins
  • What are the main differences between penicillin G and V?
  • List 10 penicillin drugs and indicate their advantages and disadvantages
  • What are cephalosporins?
  • Draw the molecular structure of cephalosporins and indicate the major active site
  • What is a beta-lactam antibiotic?
  • What is the importance of Imipenem?
  • What is the microbial source of aztreonam and what does it control?
  • What is an aminoglycoside drug?
  • Sources of aminoglycosidic compounds for chemotherapy
  • Be sure to know the molecular components of an aminoglycoside
  • Main properties of aminoglycosides
  • Liste five aminoglycoside antibiotics
  • Uses of tetracyclines
  • Source of isolation of tetracyclines
  • Discuss the molecular structure of tetracyclines
  • Disadvantages of tetracyclines
  • What is chloramphenicol?
  • Source of isolation of chloramphenicol and erythromycin
  • Why vancomycin is used only in the most serious cases?
  • Correlation of vancomycin and an emerging intestine disease (consult)
  • Source and mode of action of rifampin
  • What kind of diseases are treated with rifampin?
  • What antibiotics are isolated from Bacillus subtilis?
  • What are sulfa drugs or sulfonamides?
  • Mode of action of fluoroquinolones?
  • Name the two principal fluoroquinolones and what do they treat?
  • List the main 4 groups of  agents to treat diseases caused by fungi
  • Source of griseofulvin
  • What is ketoconazole?
  • Describe Flucytosine and what does it treat?
  • What is quinine?
  • List some synthesized quinolines
  • How does antihelminthic drugs work in human body?
  • List two antiprotozoan drugs
  • List some antiviral chemotherapeutic medicines
  • Mode of action of acyclovir
  • What is AZT and on what does it work?
  • Define interferon.  Where is it produced?
  • What does amantadine treat?

Causative microbial agents of disease   (Learn by heart!!)

a.  Bacteria 
  • Syphilis
  • Meningitis
  • Skin abscesses
  • Tuberculosis
  • Anthrax
  • Leprosy
  • Plague
  • Tularemia
  • Lyme disease
  • Rocky Mountain spotted fever
  • Typhoid fever and salmonellosis
  • Neocardiosis
  • Strep throat
  • Gangrene
  • Tetanus
  • Brucellosis
  • Pertussis
  • Gonorrhea
  • Cholera
  • What diseases does E. coli cause in humans?
  • What does Mycoplasma cause in humans?
  • A bacterial source of pneumonia is
  • A bacterial source of dysentery is
b.  Fungi 
  • Athlete's foot (2 genera))
  • Ringworm diseases (consult)
  • Candidiasis
  • Valley fever
  • Aspergillosis
  • Blastomycosis
  • Cryptococcosis
  • Sporotrichosis
c.  Protozoa 
  • Sleeping sickness
  • Amebiasis
  • Trichomoniasis
  • Chaga's disease
  • Malaria
  • Giardiasis
  • What protozoal agent causes dysentery?
  • What protozoal agent causes pneumonia?
d. Helminths 
  • Ascariosis
  • Tapeworm
  • Schistosomiasis
e.  Viruses
  • Genital herpes
  • Oral herpes
  • Shingles
  • AIDS
  • Hepatitis A, B, C, D (consult)

II.    Technical Terms

  • Medical microbiology
  • Prophylaxis
  • Chemotherapeutic drug
  • Antimicrobial chemotherapy
  • Antibiotics
  • Antimicrobics
  • Narrow-spectrum
  • Broad-spectrum
  • Sulfonamides
  • Competitive inhibition
  • Metabolic analogs
  • Synergism
  • Antagonism
  • Drug resistance
  • R-factor
  • Beta-lactamases
  • MRSA
  • Side effect
  • Superinfection
  • Flora
  • MIC
  • Enzyme
  • Cofactor
  • Substrate
  • Spore

III.    Search related internet sites

  • Antibiotics
  • Vancomycin
  • Antibiotic resistance
  • Fluoroquinolones
  • Bacterial infections
  • Fungal infections
  • Helminthic infections
  • Viral infections