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Simple method measures how long bacteria can wait out antibiotics

A new method, MDK99, measures bacterial tolerance to antibiotics, allowing clinicians to effectively treat antimicrobial-tolerant strains. This metric can also estimate the duration of antibiotic treatments and provide insights into the prevalence of tolerance, ultimately reducing treatment failure and resistance.

SourceCell Press·JournalBiophysical Journal·DateJun 20, 2017

Why antibiotics fail

UCSB biologists develop new antimicrobial susceptibility test that mimics conditions in the body, identifying effective treatments for diverse bacteria. The revised test has significant implications for public health, allowing physicians to choose alternative drugs immediately if a standard test fails.

New approach to antibiotic therapy is a dead end for pathogens

A team of researchers at Kiel University has developed a new strategy to combat multi-resistant pathogens by identifying which antibiotics can lead to increased susceptibility to other drugs. This concept, known as 'collateral sensitivity', offers hope in the fight against antibiotic resistance.

The next enchanted ring?

Researchers at Washington University in St. Louis have developed a method to synthesize ß-lactone peptides, a new class of antibiotics, by copying bacterial enzymes. These peptides inhibit serine hydrolases and may be useful in treating cancer, obesity, and infectious diseases.

SourceWashington University in St. Louis·JournalNature Chemical Biology·DateMay 30, 2017

New antibiotic packs a punch against bacterial resistance

Scientists at Scripps Research Institute have discovered a way to make vancomycin, an existing antibiotic, even more potent by adding three independent mechanisms of action. This new version has a 1,000-fold increase in activity against bacteria, making it a promising alternative to combat antibiotic-resistant infections.

SourceScripps Research Institute·JournalProceedings of the National Academy of Sciences·DateMay 29, 2017

Comparison of antibiotic treatments for cellulitis

A recent study published in JAMA compared the effectiveness of antibiotics with and without MRSA activity for treating cellulitis. The results showed that while certain groups may benefit from these regimens, further research is needed to confirm the findings. The study also highlights limitations in the current trial design.

SourceJAMA Network·JournalJAMA·DateMay 23, 2017

Key to 'superbug' antibiotic resistance discovered

A global health threat, superbugs are bacteria resistant to commonly used antibiotics. Monash University researchers identified the first important clues on how to counter superbug strategies, using electron microscopes and comparing data from antibiotic-resistant Staphylococcus aureus samples with non-resistant strains.

SourceMonash University·JournalmBio·DateMay 16, 2017

Market pressures and inadequate production are hampering access to essential antibiotics

The lack of access to essential antibiotics, particularly for treating sick babies and children, is a pressing concern. The high costs involved in registering medicines in multiple countries are the primary cause of this issue, combined with the relatively small market for these antibiotics.

SourceEuropean Society of Clinical Microbiology and Infectious Diseases·JournalClinical Microbiology and Infection·DateMay 14, 2017

New hope in the fight against superbugs

Researchers at McGill University have discovered how specific bacterial enzymes, known as kinases, confer resistance to macrolide antibiotics. The study provides a detailed atomic view of the kinases and their interaction with different macrolide antibiotics, paving the way for the design of next-generation antibiotics.

SourceMcGill University·JournalStructure·DateMay 3, 2017

Lighting up antibiotic resistance

Chinese scientists have developed a fluorogenic probe, CVB-1, to detect the activity of multidrug-resistant carbapenemases in an assay system. This technique allows for rapid detection of antibiotic resistance activity by fluorescence, enabling specific treatment strategies and reducing the overuse of ineffective drugs.

SourceWiley·JournalAngewandte Chemie International Edition·DateMar 24, 2017

Fighting MRSA with new membrane-busting compounds

Researchers have developed a new class of compounds called lysine-conjugated aliphatic norspermidine analogues (LANAs) that effectively kill certain bacteria, including MRSA. Testing on mice showed that the compounds can eliminate MRSA skin infections with no signs of acute toxicity or resistance development.

SourceAmerican Chemical Society·JournalBioconjugate Chemistry·DateMar 15, 2017

One-two punch may floor worst infections

McMaster researchers have discovered a new combination therapy that effectively treats the world's worst infectious diseases, including superbugs resistant to all known antibiotics. The treatment targets Gram-negative bacteria with an intrinsically impenetrable outer shell, making infections deadly in hospital settings.

SourceMcMaster University·JournalNature Microbiology·DateMar 6, 2017

How to solve a problem like antibiotic resistance

Innovative ways to target antibiotic resistance include combining antibiotics with non-antibiotics, such as loperamide, which enhances effectiveness against multi-drug resistant bacteria. Rapid diagnostic tests that can quickly identify bacterial infections and their resistance to antibiotics are also crucial in reducing further develo...

SourceBiochemical Society·JournalEssays in Biochemistry·DateMar 3, 2017