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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 the sterol cycloartenol (plants). Both sterols are derived from the cyclization of the triterpene squalene.

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Wikipedia about steroids

Lanosterol-skeletal.png

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 the sterol cycloartenol (plants). Both sterols are derived from the cyclization of the triterpene squalene.

Origin

Steroids include estrogen (US spelling) or oestrogen (UK/AUS spelling), progesterone and testosterone. Estrogen and progesterone are made primarily in the ovary and in the placenta during pregnancy and testosterone in the testes. Testosterone is also converted into estrogen to regulate the supply of each, in the bodies of both females and males. Certain neurons and glia in the central nervous system (CNS) express the enzymes that are required for the local synthesis of pregnane neurosteroids, either de novo or from peripherally derived sources. The rate limiting step of steroid synthesis is the conversion of cholesterol to pregnenolone which occurs inside the mitochondrion.

Taxonomical/Functional

  • Animal steroids
  • Insect steroids
  • Ecdysteroids such as ecdysterone
  • Vertebrate steroids
  • Steroid hormones
  • Sex steroids are a subset of sex hormones that produce sex differences or support reproduction. They include androgens, estrogens, and progestagens.
  • Corticosteroids include glucocorticoids and mineralocorticoids. Glucocorticoids regulate many aspects of metabolism and immune function, whereas mineralocorticoids help maintain blood volume and control renal excretion of electrolytes.
  • Anabolic steroids are a class of steroids that interact with androgen receptors to increase muscle and bone synthesis. There are natural and synthetic anabolic steroids. In popular language the word "steroids" usually refers to anabolic steroids.
  • Cholesterol which modulates the fluidity of cell membranes and is the principle constituent of the plaques implicated in atherosclerosis.
  • Plant steroids
  • Phytosterols
  • Brassinosteroids
  • Fungus steroids
  • Ergosterols

Structural

It is also possible to classify steroids based upon their chemical composition. One example of how MeSH performs this classification is available at the Wikipedia MeSH catalog. Examples from this classification include:

See also

  • Batrachotoxin
  • List of steroid abbreviations
  • Steroid biosynthesis

    External links

Search results for Steroids

NIDA: Anabolic Steroids

National Institute on Drug Abuse Research Report on anabolic steroids.www.nida.nih.gov/ResearchReports/Steroids/AnabolicSteroids.h...

Steroids

You've probably heard about sports stars using steroids to get stronger. ... Let's talk about what steroids are, how they can affect your body, and why it's ...kidshealth.org/kid/stay_healthy/fit/steroids.html

GDCADA | Steroids - Facts and Statistics

content here ... Supplements may also have the same medical consequences as steroids. ... Abuse of anabolic steroids may result in harmful side-effects as well ...www.gdcada.org/statistics/steroids.htm

Steroids are a group of powerful compounds that are related chemically ...

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isteroids.com

Features resources and information concerning anabolic steroids.www.isteroids.com/

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News about Steroids

Pecos punished for steroids policy violation

The San Angelo Standard-TimesAUSTIN - Pecos High School was put on probation for one year and publicly reprimanded today after officials determined the school violated Texas' new steroids testing policies.http://gosanangelo.com/news/2008/sep/03/pecos-punished-for-s...

Pecos punished for Steroids Policy Violation. 9/3/08

CBS 7 West Texas(Pecos)-(AP)-Pecos High School was put on probation for one year and publicly reprimanded Wednesday for violating the state's new steroids testing policies.http://www.cbs7.com/news/details.asp?ID=8064

Study confirms harms of anabolic steroid abuse

Reuters via Yahoo! News Male bodybuilders who take muscle-building anabolic steroids risk sexual problems, reduced fertility and heart trouble, a study confirms.http://news.yahoo.com/s/nm/20080904/hl_nm/anabolic_steroid_d...

Pecos punished for steroids policy violation

The Bryan-College Station Eagle AUSTIN (AP) -- Pecos High School was put on probation for one year and publicly reprimanded Wednesday after officials determined the school violated Texas' new ... http://www.theeagle.com/texas/Pecos-punished-for-steroids-po...

Steroids testing criticized again

The San Angelo Standard-TimesDALLAS - The nation's largest steroids testing program caught only two Texas high school athletes taking unauthorized substances out of more than 10,000 students who were tested, according to results issued by the state Wednesday.http://gosanangelo.com/news/2008/jul/23/steroids-testing-cri...

News about Steroids

Starting Gate: The GOP’s Last Refuge?

CBS NewsOn the op-ed page of the New York Times, David Brooks agrees . “What we’re going to see, in short, is the Gingrich revolution in reverse and on steroids,” he writes. “There will be a big increase in spending and deficits. In normal times ... http://www.cbsnews.com/blogs/2008/10/14/politics/horserace/e...

Doping notes: Belgian team to cut Kohl; Basso plea bargains for €10 ...

International Herald TribuneLAKE FOREST, Illinois (AP) - Chicago Bears offensive linemen Terrence Metcalf was suspended for four games on Monday for an undisclosed violation of the NFL's policy on anabolic steroids and related substances. He was eligible to return to practice on ... http://www.iht.com/articles/2008/10/14/sports/doping14.php

Is now the time for a Wall Street sequel?

Guardian UnlimitedMore recently, their prey have been too bullish and forbidding; pumped full of steroids and glowing with artificial good health. (or at least they were until about this time last month.) So what sort of film can we expect of Money Never Sleeps ... http://www.guardian.co.uk/film/filmblog/2008/oct/14/wall-str...

Republican National Committee: Obama's Insufficient Funds

CNBCWhat we're going to see, in short, is the Gingrich revolution in reverse and on steroids. There will be a big increase in spending and deficits." (David Brooks, Op-Ed, "Big Government Ahead," The New York Times, 10/14/08) OBAMA'S SHIFTING ... http://www.cnbc.com/id/27181344

After Kohl Doping Case, Austrian Media Call for Stronger Controls

Eflux MediaA former business partner of Matschiner was found guilty of trade with anabolic steroids in 2001. This summer, Dutch steeplechase runner Simon Vroemen, another client of Matschiner, tested positive for steroids. Late on Monday, the association of ... http://www.efluxmedia.com/news_After_Kohl_Doping_Case_Austri...

Search results for Steroids

Steroids - steroids information

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Articles, drug profiles, side effects, and cycle information.http://www.isteroids.com/

Steroids (Anabolic) - NIDA Drugs of Abuse and Related Topics

Brief Description: Mostly synthetic substances similar to the male sex hormone testosterone. Some people, especially athletes, abuse anabolic steroids to enhance performance and ... http://www.nida.nih.gov/DrugPages/Steroids.html

Bodybuilding.com - Steroids Articles!

Great Steroids articles! Learn the secrets to success! ... Featured Steroids Article: Drug Testing - Is It Fair? 40 Years Later! By: Mauro Di Pasqualehttp://www.bodybuilding.com/fun/bbinfo.php?page=Steroids
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Videos found for Steroids

Former NFL Star Fights Rampant Teen...

Former NFL Star Fights Rampant Teen Steroid UseWith competition tougher that ever in high school sports, many teens turn to steroids – but the cheating often has tragic results. A former NFL star is trying to keep young...Windows Media - Video

Torre Talks Steroids

Torre Talks SteroidsExcerpt from Monday's "Conversations with Michael Eisner', premiering 2/25 at 9p/12a ET on CNBC. http://eisner.cnbc.comFlash - Video

Britney Spears Uses Steroids!

Britney Spears Uses Steroids!I HAD TO HAVE IT! PLEASE SUBSCRIBE! Brit news- BLAH! but I make it fun! LOL Also- Marion Jones?! SAD! Stay tuned for OUT TAKES! Maybe I will "Have to have it" AND I LOVE PUSHING...Flash - Video

Family Guy Peter on Steroids

Family Guy Peter on SteroidsMeg gets PunchedFlash - Video

Baseball Steroid Report Out, Pt. 4

Baseball Steroid Report Out, Pt. 4George Mitchell, who headed the committee investigating drug use, says hundreds of thousands of young players are now using steroids.Windows Media - Video

Videos found for Steroids

Acute Therapies: Steroids, IVIG, Pl...

Acute Therapies: Steroids, IVIG, Plasma Exchange, CytoxanAcute Therapies: Steroids, IVIG, Plasma Exchange, Cytoxan Transverse Myelitis Association 37 min 58 sec - Jul 20, 2006 2006 Rare Neuroimmunologic Disorders Symposium Acute Therapies: Steroids, IVIG,...flash: 0 MB w:320px - h:241px

Phil Garner on Bonds and Steroids

Phil Garner on Bonds and SteroidsHouston Astros manager Phil Garner says he has no plans to pitch to Barry Bonds when his team plays the Giants, and he has a very candid discussion with Y! Sports about steroid use in MLB.wmv: 0 MB w:793px - h:608px

Court allows steroids test data

Court allows steroids test dataSports talk host Arnie Spanier discusses implications of baseball players' drug tests revealed. (December 27)wmv: 0 MB w:793px - h:608px

Dangers of Steroids

Dangers of SteroidsDangers of Steroidsmsmedia: 10.0 MB w:320px - h:240px

Grimsley's steroids

Grimsley's steroidsHear from the D'Backs and MLB commish Bud Selig about Jason Grimsley's drug investigation. Grimsley failed a drug test in 2003 and admitted to using human growth hormone, amphetamines and steroids.msmedia: 12.5 MB w:320px - h:240px

Answers for Steroids

ChiSlugger

How long do steroids stay in your system in order to test positive?

ChiSluggerThe length of time that steroids stay in the body varies. Injected steroids may be detected in the body for 3 to 4 months while the oral types may remain for 1 to 4 weeks. Good luck on your paper.
RabidWolverinefan4real

When will steroids stop being in any sport including wrestling?

RabidWolverinefan4realThat is a good question. I think steroids will unfortunately be in use in ALL sports, as long as the athletes are continually pushed by coaches, managers, wrestling promoters and sometimes even pare...
addisonsmom17

Can anabolic steroids cause problems in babies whose fathers are using when they get wife pregnant?

addisonsmom17my hubby is a gym junkie, hes got alot of freinds who use these steroids, from what hes heard its not safe at all, there is a risk of heart problems, and other defects in the baby, a freind of ours h...
KenRagge

What is the mandated treatment for using anabolic steroids in baseball?

KenRaggeYes, the treatment is suspension for full year plus no pay. The no pay is the treatment.
Isi

What is the risk or side effects of using medicines called topical steroids for a long period?

IsiDermovate is a very potent topical steroid.Generally topical steroids side effects are effects at the site they are applied such as thinning of the skin, easy bruising, skin infection,etc. As a very p...

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