Over the course of 40 years, biologist Sharon Long has become an expert in symbiotic bacteria that help alfalfa grow. She has published over 150 papers on this one topic but when she realized her lab's decades of highly focused ...
Ecology
21 hours ago
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87
"Resurrecting" the ancestors of key proteins yields evolutionary insights into their role in human cells and in most cancers, a new study finds.
Molecular & Computational Biology
Aug 13, 2019
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58
Researchers from North Carolina State University have found that an elastic polymer possesses broad-spectrum antimicrobial properties, allowing it to kill a range of viruses and drug-resistant bacteria in just minutes—including ...
Polymers
Aug 01, 2019
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89
Researchers at the Indian Institute of Science (IISc) have designed an antimicrobial peptide (AMP) that can effectively and quickly kill a notorious multidrug-resistant bacterium called Acinetobacter baumannii.
Biochemistry
Jul 30, 2019
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134
Researchers in Japan have identified multiple promising new drug candidates to treat antibiotic-resistant infections, including the superbug MRSA (methicillin-resistant Staphylococcus aureus). The team developed a new technique ...
Biochemistry
Jul 08, 2019
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0
The solution to the problem of increasing drug resistance among malaria-causing parasites could come from the North, according to a study published in Chemical Communications by researchers from Université Laval and the ...
Biochemistry
Jun 05, 2019
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6
Imagine a world where your odds of surviving minor surgery were one to three. A world in which a visit to the dentist could spell disaster. This is the world into which your great-grandmother was born. And if humanity loses ...
Cell & Microbiology
Jun 05, 2019
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8
May 30—Our cells' process for transforming genes into useful proteins works much like an automobile factory's assembly line; there are schematics, parts, workers, motors, quality control systems and even recycling crews. ...
Cell & Microbiology
May 30, 2019
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126
During the height of the Civil War, the Confederate Surgeon General commissioned a guide to traditional plant remedies of the South, as battlefield physicians faced high rates of infections among the wounded and shortages ...
Cell & Microbiology
May 22, 2019
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5836
A growing number of infections—such as pneumonia, gonorrhea and tuberculosis—are becoming harder to treat, as bacteria evolve defenses against antibiotics faster than we can develop new drugs to replace them.
Cell & Microbiology
May 16, 2019
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54
Drug resistance is the reduction in effectiveness of a drug in curing a disease or improving a patient's symptoms. When the drug is not intended to kill or inhibit a pathogen, then the term is equivalent to dosage failure or drug tolerance. More commonly, the term is used in the context of diseases caused by pathogens.
Pathogens are said to be drug-resistant when drugs meant to neutralize them have reduced effect. When an organism is resistant to more than one drug, it is said to be multidrug resistant.
Drug resistance is an example of evolution in microorganisms. Individuals that are not susceptible to the drug effects are capable of surviving drug treatment, and therefore have greater fitness than susceptible individuals. By the process of natural selection, drug resistant traits are selected for in subsequent offspring, resulting in a population that is drug resistant.
This text uses material from Wikipedia, licensed under CC BY-SA
