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Inhibitors of Bacterial Protein Synthesis01:25

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Aminoglycosides constitute a highly potent class of bactericidal antibiotics that exert their antimicrobial effects by targeting the bacterial ribosome, specifically disrupting protein synthesis. These polycationic molecules consist of amino-modified sugars linked via glycosidic bonds to an aminocyclitol core such as 2-deoxystreptamine or streptamine. Their strong positive charges facilitate tight binding to the negatively charged phosphate backbone of ribosomal RNA (rRNA), primarily at the 16S...
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Aminoglycosides are a class of antibiotics used to treat various bacterial infections. Clinicians must determine the elimination rate constant (k) and volume of distribution (VD) to optimize therapeutic efficacy and minimize toxicity. The k value represents the rate at which the drug is removed from the body, and the VD reflects the degree to which the drug distributes into body tissues. Accurately estimating these parameters allows healthcare professionals to tailor drug dosing to individual...
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Positive inotropic agents are commonly used as the first line of treatment for heart failure. One such agent is digoxin, derived from the genus Digitalis, which has been known for centuries but effectively utilized since 1785. However, these cardiac glycosides can have potentially toxic effects due to their mechanism of action, which involves inhibiting Na+/K+-ATPase and increasing contractility. Digoxin is absorbed orally and distributed in various tissues, including the CNS. It has a long...
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Aminoglycosides: An Overview.

Kevin M Krause1, Alisa W Serio1, Timothy R Kane1

  • 1Achaogen, South San Francisco, California 94080.

Cold Spring Harbor Perspectives in Medicine
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PubMed
Summary
This summary is machine-generated.

Aminoglycosides, early antibiotics, are regaining interest due to their synergy with other drugs and effectiveness against multidrug-resistant bacteria. Optimized dosing may improve their safety and efficacy.

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Area of Science:

  • Microbiology
  • Pharmacology
  • Infectious Diseases

Background:

  • Aminoglycosides are natural or semisynthetic antibiotics derived from actinomycetes.
  • They were among the first antibiotics used clinically but were later superseded by other classes.
  • Their broad-spectrum and bactericidal properties remain significant.

Purpose of the Study:

  • To highlight the renewed interest in aminoglycosides.
  • To discuss their synergistic potential with other antibacterial agents.
  • To explore the possibility of improving aminoglycoside therapy through optimized dosing.

Main Methods:

  • Literature review of aminoglycoside antibiotics.
  • Analysis of historical and current antimicrobial chemotherapy trends.
  • Examination of antibiotic synergy and resistance patterns.

Main Results:

  • Aminoglycosides exhibit broad-spectrum activity and rapid bactericidal effects.
  • They demonstrate synergistic activity when combined with other antibiotic classes.
  • Increasing multidrug-resistant bacteria necessitates exploring alternative or adjunct therapies.

Conclusions:

  • Aminoglycosides are valuable antibacterials with potential for renewed clinical application.
  • Synergistic combinations and optimized dosing regimens are key to their future use.
  • Their role in combating multidrug-resistant infections warrants further investigation.