News tagged with drug resistance
Acne drug prevents HIV breakout (w/ Video)
Johns Hopkins scientists have found that a safe and inexpensive antibiotic in use since the 1970s for treating acne effectively targets infected immune cells in which HIV, the virus that causes AIDS, lies ...
Medicine & Health / HIV & AIDS
Mar 19, 2010 |
4.8 / 5 (21) |
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New compound defeats drug-resistant bacteria
It's no wonder that medicine's effort to combat bacterial infections is often described as an arms race. When new drugs are developed to combat infections, the bacterial target invariably comes up with a deterrent.
Nov 28, 2011 |
4.9 / 5 (14) |
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Antibiotics wrapped in nanofibers turn resistant disease-producing bacteria into ghosts
Encapsulating antibiotics inside nanofibers, like a mummy inside a sarcophagus, gives them the amazing ability to destroy drug-resistant bacteria so completely that scientists described the remains as mere ...
Mar 29, 2011 |
4.8 / 5 (11) |
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Australian mammals take on antibiotic-resistant bugs
The Australian wallaby and platypus could turn out to be key weapons in fighting the growing health threat of multidrug-resistant bacteria, a team involving University of Sydney researchers has discovered.
Sep 02, 2011 |
4.6 / 5 (9) |
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Nanoparticle-delivered RNA interference drug stops head and neck cancer growth
(Phys.org) -- A nanoparticle drug delivery vehicle for small interfering RNA molecules (siRNA), that is already being tested in human clinical trials, now shows promise for the treatment of head and neck cancer. Dong Shin, ...
Nanotechnology / Bio & Medicine
Apr 06, 2012 |
5 / 5 (8) |
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See how they grow: Monitoring single bacteria without a microscope
(PhysOrg.com) -- With an invention that can be made from some of the same parts used in CD players, University of Michigan researchers have developed a way to measure the growth and drug susceptibility of ...
Chemistry / Analytical Chemistry
Jan 17, 2011 |
4.9 / 5 (8) |
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'Nanobubbles' plus chemotherapy equals single-cell cancer targeting
Using light-harvesting nanoparticles to convert laser energy into "plasmonic nanobubbles," researchers at Rice University, the University of Texas MD Anderson Cancer Center and Baylor College of Medicine (BCM) ...
Nanotechnology / Bio & Medicine
Apr 09, 2012 |
4.9 / 5 (8) |
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Cancer drug effectiveness substantially advanced
Researchers have shown that a peptide (a chain of amino acids) called iRGD helps co-administered drugs penetrate deeply into tumor tissue. The peptide has been shown to substantially increase treatment efficacy against human ...
Apr 08, 2010 |
4.6 / 5 (8) |
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Antibiotic resistant bacteria proliferate in agricultural soils
Infectious diseases kill roughly 13 million people worldwide, annually, a toll that continues to rise, aided and abetted by resistance genes. Now a study, published in the March Antimicrobial Agents and Chemotherapy finds ...
Mar 20, 2012 |
4 / 5 (8) |
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Wild sharks, redfish harbor antibiotic-resistant bacteria
Scientists have found antibiotic-resistant bacteria in seven species of sharks and redfish captured in waters off Belize, Florida, Louisiana and Massachusetts. Most of these wild, free-swimming fish harbored ...
Jun 16, 2010 |
5 / 5 (6) |
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Promising new one-dose malaria drug discovered
Researchers have discovered a promising new malaria drug with the potential to treat resistant strains of the deadly disease in a single dose, according to a study published Thursday in the journal Science.
Medicine & Health / Medications
Sep 02, 2010 |
5 / 5 (6) |
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Berkeley lab scientists reveal path to protein crystallization (w/ Video)
(PhysOrg.com) -- Growth of two-dimensional S-layer crystals on supported lipid bilayers observed in solution using in situ atomic force microscopy. This movie shows proteins sticking onto the supported lipid ...
Sep 22, 2010 |
5 / 5 (6) |
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Chemistry trick renews hope against killer diseases
As infections such as tuberculosis have become immune to an ever widening range of antibiotics doctors have looked on helplessly.
Dec 28, 2011 |
5 / 5 (6) |
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Study finds how bacteria resist a 'Trojan horse' antibiotic
A new study describes how bacteria use a previously unknown means to defeat an antibiotic. The researchers found that the bacteria have modified a common "housekeeping" enzyme in a way that enables the enzyme ...
Mar 19, 2012 |
4.8 / 5 (6) |
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Researchers discover two new ways to kill tuberculosis (w/ Video)
Researchers at Albert Einstein College of Medicine of Yeshiva University have found two novel ways of killing the bacteria that cause tuberculosis (TB), a disease responsible for an estimated two million deaths each year. ...
Mar 21, 2010 |
4.3 / 5 (6) |
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Drug resistance
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.
For more information about Drug resistance, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
