News tagged with drug
New device allows pacemaker patients to safely undergo MRIs
For many, it's a medical conundrum: The very pacemaker keeping their heart in rhythm prevents them from undergoing an MRI to diagnose other ailments, because interaction between the two devices could prove deadly.
Cardiology
May 25, 2012 |
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Rockefeller scientists pioneer new method to determine mechanisms of drug action
(Medical Xpress) -- Knowing that a drug works is great. Knowing how it works is a luxury. And until now, determining a drug’s mechanism of action has been a tedious and difficult process for scientists.
Medical research
May 25, 2012 |
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Thioridazine kills cancer stem cells in human while avoiding toxic side-effects of conventional cancer treatments
A team of scientists at McMaster University has discovered a drug, thioridazine, successfully kills cancer stem cells in the human while avoiding the toxic side-effects of conventional cancer treatments.
Cancer
May 24, 2012 |
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Research team uncovers mechanism behind drugs that cause altered immunity
(Medical Xpress) -- An Australian research team has opened the door to understanding why certain drugs cause a so called altered immunity response when offered as treatment for certain specific ailments. In their paper published ...
Immunology
May 24, 2012 |
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World's biggest stroke clot-buster trial reveals patient benefits
(Medical Xpress) -- Patients given a clot-busting drug within six hours of a stroke are more likely to make a better recovery than those who do not receive the treatment, new research has found.
Neuroscience
May 24, 2012 |
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Whole genome sequencing of rare olfactory neuroblastoma
The Translational Genomics Research Institute (TGen) and the Virginia G. Piper Cancer Center at Scottsdale Healthcare have conducted whole genome sequencing (WGS) of a rare nasal tract cancer called olfactory neuroblastoma ...
Genetics
May 23, 2012 |
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Anti-inflammatory drugs may improve survival from severe malaria
A novel anti-inflammatory drug could help to improve survival in the most severe cases of malaria by preventing the immune system from causing irrevocable brain and tissue damage.
Diseases, Conditions, Syndromes
May 23, 2012 |
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Chronic pain is relieved by cell transplantation in lab study (Update)
(Medical Xpress) -- Chronic pain, by definition, is difficult to manage, but a new study by UCSF scientists shows how a cell therapy might one day be used not only to quell some common types of persistent ...
Neuroscience
May 23, 2012 |
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Reverse engineering epilepsy's 'miracle' diet
For decades, neurologists have known that a diet high in fat and extremely low in carbohydrates can reduce epileptic seizures that resist drug therapy. But how the diet worked, and why, was a mystery—so much so that ...
Neuroscience
May 23, 2012 |
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British experts update addiction treatment guidelines
The British Association for Psychopharmacology (BAP) has released fresh guidelines on the best methods to treat substance abuse and addiction in the Journal of Psychopharmacology, published by SAGE. A panel of experts has ca ...
Addiction
May 23, 2012 |
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Scientists start explaining Fat Bastard's vicious cycle
Fat Bastard's revelation "I eat because I'm depressed and I'm depressed because I eat" in the Austin Powers film series may be explained by sophisticated neuroscience research being undertaken by scientists affiliated with ...
Overweight and Obesity
May 23, 2012 |
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Scientists see potential in novel leukemia treatment
Scientists at Virginia Commonwealth University Massey Cancer Center may be one step closer to developing a new therapy for acute myeloid leukemia (AML) after discovering that the targeted agents obatoclax and sorafenib kill ...
Cancer
May 22, 2012 |
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New tool helps decide what drugs to include in health care formularies
A new tool that could provide a useful framework for deciding what medicines to include in drug formularies is presented in this week's PLoS Medicine by the experts from Harvard Medical School and the University of Illino ...
Medications
May 22, 2012 |
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FDA clears test for mastocytosis diagnosis
The Food and Drug Administration has approved a new test to help physicians diagnose a group of rare cell disorders. The test, or assay, was developed by an expert at Virginia Commonwealth University in the field of mast ...
Medical research
May 22, 2012 |
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Reactions to HIV drug have autoimmune cause, reports AIDS journal
Potentially severe hypersensitivity reactions to the anti-HIV drug abacavir occur through an autoimmune mechanism, resulting from the creation of drug-induced immunogens that are attacked by the body's immune system, according ...
HIV & AIDS
May 22, 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.
