Steroid

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A 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


Britain bans 'legal high' drugs

Medicine & Health / Health

created Dec 23, 2009 | popularity 4 / 5 (4) | comments 1

Britain banned several drugs known as "legal highs" Wednesday amid mounting public concern about their health risks.





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Gene for devastating kidney disease discovered

Medicine & Health / Genetics

created Dec 22, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- Researchers from Children's Hospital Boston and Brigham and Women's Hospital have identified an important genetic cause of a devastating kidney disease that is the second leading cause of kidney failure in ...


Clinical Trial Examines Drug?s Potential for Protecting the Optic Nerve

Clinical Trial Examines Drug's Potential for Protecting the Optic Nerve

Medicine & Health / Research

created Dec 21, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Acute optic neuritis, an inflammation of the optic nerve, doesn't occur all that often. But for those who experience it, the vision loss, pain and nerve damage that often result are no small ...


Next generation lens promises more control

Next generation lens promises more control

Physics / Condensed Matter

created Dec 20, 2009 | popularity 4.8 / 5 (22) | comments 1

(PhysOrg.com) -- Duke University engineers have created a new generation of lens that could greatly improve the capabilities of telecommunications or radar systems to provide a wide field of view and greater ...



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