Steroid
hideA steroid is a terpenoid lipid characterized by its sterane or steroid nucleus: a carbon skeleton with four fused rings, generally arranged in a 6-6-6-5 fashion. Steroids vary by the functional groups attached to these rings and the oxidation state of the rings. Hundreds of distinct steroids are found in plants, animals, and fungi. All steroids are made in cells either from the sterol lanosterol (animals and fungi) or from the sterol cycloartenol (plants). Both sterols are derived from the cyclization of the triterpene squalene.
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News tagged with steroids
Bodybuilding with steroids damages kidneys
Oct 29, 2009 |
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Athletes who use anabolic steroids may gain muscle mass and strength, but they can also destroy their kidney function, according to a paper being presented at the American Society of Nephrology's 42nd Annual Meeting and Scientific ...
Case studies: Dietary supplements with steroids pose health danger
Aug 04, 2009 |
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Three cases of patients suffering from the adverse affects of steroid-enriched dietary supplements have been reported by researchers at Henry Ford Hospital.
BALCO agent searches for steroids in supplements
Jul 24, 2009 |
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(AP) -- The investigator who led the BALCO probe has taken aim at a San Francisco-area supplement manufacturer, claiming the products they sell are laced with designer steroids.
Powerful nutrient cocktail can put kids with Crohn's into remission
Jun 16, 2009 |
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Treating children with inflammatory bowel disease (IBD) usually involves the same steroids-based medication prescribed to adults. But such treatments can have negative side effects for kids and teens dealing with IBD.
A natural hormone may protect muscle from atrophy
Jun 11, 2009 |
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Researchers have found a potential new treatment for the common problem of muscle atrophy.
Obesity does not worsen asthma, but may reduce response to medications
Jun 03, 2009 |
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Being overweight or obese does not make asthma worse in patients with mild and moderate forms of the disease, according to a study by National Jewish Health researchers, although it may reduce the response to medications.
Vitamin D levels linked to asthma severity
Apr 23, 2009 |
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New research provides evidence for a link between vitamin D insufficiency and asthma severity.
'Antedrugs': A safer approach to drug therapy
Apr 17, 2009 |
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Corticosteroids are powerful drugs used to treat inflammatory conditions such as asthma and other chronic diseases which has made them among the most widely prescribed drugs. Although the anti-inflammatory drugs offer swift ...
Steroid doping tests ignore vital ethnic differences in hormone activity
Mar 12, 2009 |
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Current steroid (testosterone) doping tests should be scrapped for international sport, because they ignore vital ethnic differences in hormone activity, suggests research published ahead of print in the British Journal of ...
Steroids ineffective in young children with wheeze
Feb 23, 2009 |
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New research involving medical experts at The University of Nottingham has found that steroid tablets do not reduce the symptoms of virus-induced wheezing in pre-school children.
New test to identify illegal steroids in cattle
Feb 20, 2009 |
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In an effort to curb the illegal use of steroids in the European beef industry, scientists in the United Kingdom are reporting the development of a new test that can identify steroids with higher accuracy, more convenience, ...
Study finds 'rescue course' of antenatal steroids improves outcome in premature babies
Jan 29, 2009 |
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In a study to be presented today at the Society for Maternal-Fetal Medicine's (SMFM) annual meeting, researchers will unveil findings that show that premature babies born before 34 weeks have a 31 percent reduction in serious ...
Steroids aid recovery from pneumonia, researchers say
Oct 14, 2008 |
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Adding corticosteroids to traditional antimicrobial therapy might help people with pneumonia recover more quickly than with antibiotics alone, UT Southwestern Medical Center scientists have found.
Low sperm count may be associated with prenatal testosterone excess
Sep 23, 2008 |
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Exposure to an excess of sexual steroids, like testosterone, during fetal development may be a potential risk factor for low sperm count and motility, according to a new study accepted for publication in Endocrinology, a ...
Cells that mediate steroid-resistant asthma identified by scientists at Children's Hospital
Sep 19, 2008 |
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Children's Hospital of Pittsburgh of UPMC researchers have identified cells that may play a key role in some forms of steroid-resistant asthma, a complication of the condition that makes treatment even more challenging.
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