This document provides information on antibiotics and their use. It defines antibiotics as medications used to treat bacterial infections. There are two main types of antibiotics - bactericidal, which kill bacteria, and bacteriostatic, which inhibit bacterial growth. Ideal antibiotics kill or inhibit bacteria without harming the host. The document then discusses specific antibiotics like ampicillin and chloramphenicol, explaining their origins, modes of action in inhibiting bacterial cell wall formation or protein synthesis, and common uses to treat infections.
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Academic writing assignment ii-ppt presentation
1. MOOC ON
SUBJECTIVE ASSIGNMENT II
Name: Dr. Leji Latheef
Course name: Academic writing (UGC19_GE03)
Application No.: 7b0acb7ae68f11e9b14463548a31851f
Affiliation: Al-Ameen College, Edathala
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Date: 30/10/2019
2. DRUGS
The compounds which exert various physiological effects of
therapeutic value are known as drugs
The treatment of diseases using suitable chemical compounds
is known as chemotherapy
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3. Antibiotics
Medications used to treat bacterial infections
Ideally, before beginning antibiotic therapy, the suspected areas of
infection should be cultured to identify the causative organism and
potential antibiotic susceptibilities.
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5. Ideal Qualities
To kill or inhibit the growth of bacteria
Cause no damage to the host
Cause no allergic reaction to the host
It is effective in specific tissues in the body
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6. How Antibiotics Work
Block protein formation
Inhibit cell wall formation
Interfere with DNA formation
Prevent folic acid synthesis
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7. Ampicillin
First introduced in the 1940s
Bactericidal: inhibit cell wall
synthesis
Kill a wide variety of bacteria
Also called beta-lactams D-alpha amino benzyl pencillin
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8. Mode of Action
Beta lactum antibiotics (pencillin and ampicillin) act by
inhibition of cell wall formation in bacteria
Disrupt of peptidoglycan synthesis
Inhibiting the action of the enzyme trans peptidase that is
necessary for crosslinking of peptidoglycan, which form the
skeleton of bacterial cell wall
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10. Chloramphenicol (Chloromycetin)
It is a broad spectrum of antibiotic
Produced by Streptomyces Venezuelae, an organism first isolated in
1947 from a soil sample collected in Vanezuela
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D-(-)-threo-2-dichloroacetamino-1-p-nitrophenyl propane-1,3-diol
11. Mode of Action
Inhibit microbial protein synthesis
Binds reversibly to the 50S ribosomal subunit of bacteria
Inhibit the peptidyl transferase step of protein synthesis
Prevents the formation of peptide bonds
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12. Uses
Treatment of
Typhoid fever
Influenza, meningitis
Chronic bronchitis
Infection of eyes
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13. FeedBackonAcademicWriting
This Course really worth for me to enriched my knowledge on
How to write literature review
The importance of cohesion and coherence
How to write PhD thesis and research proposal
How to avoid plagiarism
Awareness on journal matrics and author matrics
My sincere thaks to the Academic Writing coordinators for their effors to make this course
successful
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