News tagged with drug
Magnetic nanochain detonates chemo barrage inside tumors
Medicine-toting nanochains slip into tumors and explode a chemotherapy drug into hard-to-reach cores of cancer, engineers and scientists at Case Western Reserve University report.
Nanotechnology / Bio & Medicine
Apr 18, 2012 |
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Strategy discovered to activate genes that suppress tumors and inhibit cancer
(Medical Xpress) -- A team of scientists has developed a promising new strategy for "reactivating" genes that cause cancer tumors to shrink and die. The researchers hope that their discovery will aid in the ...
May 21, 2012 |
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Device may inject a variety of drugs without using needles
Getting a shot at the doctor’s office may become less painful in the not-too-distant future.
May 24, 2012 |
4.4 / 5 (7) |
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Tool-wielding robots crawl in bodies for surgery
Imagine a tiny snake robot crawling through your body, helping a surgeon identify diseases and perform operations.
May 29, 2012 |
4.2 / 5 (5) |
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Study shows potential to revive abandoned cancer drug by nanoparticle drug delivery
Current nanomedicine research has focused on the delivery of established and novel therapeutics. But a UNC team is taking a different approach. They developed nanoparticle carriers to successfully deliver therapeutic doses ...
Nanotechnology / Bio & Medicine
May 02, 2012 |
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Pinpointing how antibiotics work
Penicillin and other antibiotics have revolutionized medicine, turning once-deadly diseases into easily treatable ailments. However, while antibiotics have been in use for more than 70 years, the exact mechanism ...
Apr 20, 2012 |
4.3 / 5 (4) |
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Medical treatments from 200 miles up
In the hunt for cancer treatments, researchers have had some help from higher authorities -- way higher. The International Space Station, orbiting the Earth at more than 200 miles in the sky, houses scientific ...
Space & Earth / Space Exploration
May 28, 2012 |
5 / 5 (3) |
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Invention could help pharmaceutical industry save money
Two Michigan State University researchers have invented a protein purifier that could help pharmaceutical companies save time and money.
May 01, 2012 |
4.7 / 5 (3) |
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Target: Drug-resistant bacteria
Over the past several decades, scientists have faced challenges in developing new antibiotics even as bacteria have become increasingly resistant to existing drugs. One strategy that might combat such resistance ...
Nanotechnology / Bio & Medicine
May 04, 2012 |
4.3 / 5 (3) |
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'Copper pump's' potential benefit in cancer treatment
(Phys.org) -- A team of University of California, San Diego researchers has made new discoveries about a copper-transporting protein in the membranes of human cells that drug-discovery scientists can co-opt ...
May 17, 2012 |
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Speeding up drug discovery with rapid 3-D mapping of proteins
A new method for rapidly solving the three-dimensional structures of a special group of proteins, known as integral membrane proteins, may speed drug discovery by providing scientists with precise targets ...
4 hours ago |
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Trashing old, unused medications best for reducing environmental impact
Returning extra medicine to the pharmacy for disposal might not be worth the extra time, money or greenhouse gas emissions, according to a University of Michigan study that is the first to look at the net ...
May 16, 2012 |
4 / 5 (2) |
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Police bust online narcotics 'Farmers Market'
US authorities announced the bust of an online narcotics "Farmers Market" where people around the globe could buy LSD, ecstasy and other illicit substances.
Apr 17, 2012 |
5 / 5 (1) |
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Research team gives drug dropouts a second chance
(Phys.org) -- A cross-disciplinary team of researchers at the University of Maryland has designed a molecular container that can hold drug molecules and increase their solubility, in one case up to nearly ...
May 07, 2012 |
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New research reveals challenges in genetically engineered crop regulatory process
A new innovation can completely reshape an industry-- inspiring both optimism and debate. The development of genetically engineered (GE) crops in the 1980's ignited a buzz in the agricultural community with the potential ...
May 08, 2012 |
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Drug
A drug, broadly speaking, is any substance that, when absorbed into the body of a living organism, alters normal bodily function. There is no single, precise definition, as there are different meanings in drug control law, government regulations, medicine, and colloquial usage.
In pharmacology, Dictionary.com defines a drug as "a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being." Drugs may be prescribed for a limited duration, or on a regular basis for chronic disorders.
Recreational drugs are chemical substances that affect the central nervous system, such as opioids or hallucinogens. They may be used for perceived beneficial effects on perception, consciousness, personality, and behavior. Some drugs can cause addiction and habituation.
Drugs are usually distinguished from endogenous biochemicals by being introduced from outside the organism.[citation needed] For example, insulin is a hormone that is synthesized in the body; it is called a hormone when it is synthesized by the pancreas inside the body, but if it is introduced into the body from outside, it is called a drug.[citation needed]
Many natural substances such as beers, wines, and some mushrooms, blur the line between food and drugs, as when ingested they affect the functioning of both mind and body.
For more information about Drug, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
