Final Flashcards

(36 cards)

1
Q

Penicillin G

A

only Gram + injection

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2
Q

Penicillin V

A

only Gram + oral

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3
Q

Aminopenicillins

A

Gram + (enterococcus) and - (E. coli, salmonella)

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4
Q

Pseudomonal Penicillins

A

pseuodomonas

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5
Q

Clavulanic Acid

A

used with penicillin, inhibits B-lactamase

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6
Q

Penicillinase-resistant penicillin

A

Gram + , resistant by hiding C-N bond

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7
Q

Cephalasporins

A

two variable R groups

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8
Q

1st generation Ceph

A

Gram +

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9
Q

2nd generation Ceph

A

Gram - and anaerobic organsism

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10
Q

3rd generation Ceph

A

Gram - and central nervous system

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11
Q

4th generation Ceph

A

Gram + and -

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12
Q

Vancomycin

A

LAST RESORT changes D-Alanine to D-lactate or D-serine

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13
Q

Bacitracin

A

Gram +, only used on skin

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14
Q

Isoniazid

A

effective only against Mycobacterium tuberculosis

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15
Q

Aminoglycosides

A

binds to 30S ribosomal subunit causing misreading of mRNA message

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16
Q

Tetracyclines

A

binds to 30S ribosomal subunit and inhibits entrance of tRNA’s

17
Q

Chloramphenicol

A

binds to 50S ribosomal subunit and inhibits the formation of a peptide bond

18
Q

Macrolides

A

binds to 50S ribosomal subunit and prevents translocation of ribosome

19
Q

Para Amino Benzoic Acid

A

bacteria use it to make folic acid

20
Q

Platensimycin

A

disrupts fatty acid synthesis

21
Q

Therapeutic index

A

[toxicity]/[effectiveness]

22
Q

Kirby-Bauer Method

A

measure diameter of zone of inhibition

23
Q

Amantidine or Rimantadine

A

disrupt ion transport that makes it more acidic for uncoating

24
Q

HAART

A

highly active anti-retroviral therapy

25
interferon
coordinate the transcription of anti-viral proteins
26
Known resistance mechanisms
lacks the target; impermeable to antibiotic; alter the antibiotic; alter the target of antibiotic; pump out the antibiotic; shut down a metabolic pathway
27
Bacteriophage therapy
use of virulent phage to treat bacterial infections; specific targeting, no side effects, no resistance, simple and cheap production
28
Biofilm
microbial community attached to surface; not choosy; 2/3 of bacteria use this
29
Quorum sensing
microbial communication; use autoinducers
30
autoinducers
go back into the cell to start a 30-45% change in protein transcription
31
cyclic dimeric guanosine monophosphate
inhibits flagellar motion; secretes exopolysaccharide
32
Autoinducer in Gram -
Autoinducer Z
33
Autoinducer in Gram +
short peptides
34
furanones
can bind autoinducers; halogens added to increase variability
35
Silver
used to treat biofilms
36
Why form biofilms?
protection; stability; gene transfer; quorum sensing