News tagged with drug
Light-induced delivery of nitric oxide eradicates drug-resistant bacteria
Researchers at the University of California, Santa Cruz, have developed a novel approach for eradicating drug-resistant bacteria from wounds and skin infections, using light to trigger the controlled release of nitric oxide. ...
1 hour ago |
not rated yet |
0
|
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 |
5 / 5 (2) |
0
|
New study shows why swine flu virus develops drug resistance
Professor Adrian Mulholland and Dr Christopher Woods from Bristol's School of Chemistry, together with colleagues in Thailand, used graphics processing units (GPUs) to simulate the molecular processes that take place when ...
May 29, 2012 |
5 / 5 (1) |
0
|
New type of biosensor is fast, super-sensitive
(Phys.org) -- A whole new class of biosensor that can detect exceptionally small traces of contaminants in liquids in just 40 minutes has been developed by a UNSW-led team of researchers.
Chemistry / Analytical Chemistry
May 29, 2012 |
5 / 5 (1) |
1
|
Manufacturing genes to attack flu virus
An international research team has manufactured a new protein that can combat deadly flu epidemics.
May 27, 2012 |
not rated yet |
0
|
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) |
5
|
Planned coincidence: Antibody-based search for new chemical reactions
(Phys.org) -- Many discoveries are made by chance, but it is also possible to help it along: The chance of finding something interesting increases when the number of experiments rises. French researchers have ...
May 22, 2012 |
5 / 5 (1) |
0
|
Researchers develop way to strengthen proteins with polymers
Proteins are widely used as drugs — insulin for diabetics is the best known example — and as reagents in research laboratories, but they react poorly to fluctuations in temperature and are known to degrade in storage.
May 21, 2012 |
not rated yet |
0
|
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 |
5 / 5 (8) |
0
|
'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 |
4 / 5 (3) |
0
|
Energy in action: For two molecules on blind date, new method predicts potential for attraction or repulsion
(Phys.org) -- Krzysztof Szalewicz, professor of physics and astronomy at the University of Delaware, and Rafal Podeszwa of the University of Silesia Institute of Chemistry in Poland have developed and validated ...
May 16, 2012 |
not rated yet |
0
|
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 |
5 / 5 (1) |
0
|
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) |
1
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 |
5 / 5 (4) |
0
|
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) |
0
|
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.
