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Topic: Androstenedione



  
 Andro: Mark McGwire
But the specific consequences of androstenedione were apparently not studied.
Athletes should be expected to behave in a manner that reflects the highest values of good health and sportsmanship and that promotes the proper growth and advancement of the sport itself.
But contrary to the advertisements promoting this supplement, there are no published scientific studies showing that androstenedione builds muscle mass, promotes healing, or improves performance.
http://www.hhp.ufl.edu/faculty/pbird/keepingfit/ARTICLE/andro.htm   (636 words)

  
 Creatine and Androstenedione
The sellers of creatine and androstenedione (pronounced androe-steen-die-own) make these sorts of claims although there are no long-term studies of the effectiveness or safety of these drugs.
It has shown to be somewhat effective in clinical studies in speeding up recovery from workouts, adding lean muscle mass, and it is quickly becoming as popular as multivitamin supplements, at least among athletes, though whether creatine is safe in the long term remains to be seen.
And McGwire himself may have set his sights on a new goal — beating new records such as Hank Aaron’s 755 career home runs, or Babe Ruth’s.690 slugging percentage, neither of which was achieved with the help of performance enhancing drugs.
http://eserver.org/zine375/swallow.html   (1497 words)

  
 Androstenedione Works!
Androstenedione is only one step behind testosterone in the production pathway.
These investigators suggested rather than DHEA or androstenediol, that androstenedione may be the dominant androgen within the body.
This can only enhance your results from training.
http://www.ast-ss.com/research/cribb/androstenedione_works4-17-00.htm   (1049 words)

  
 Androstenedione
By the time any of the athletes were drug tested, their testosterone levels would likely have fallen to within the range allowed by the testosterone/epitestosterone ratio test.
But the anabolic effects were significant only in castrated dogs, and even then were much weaker than effects of testosterone.(7) Like dozens of other androgens, androstenedione was consigned to research limbo.
You can take androstenedione until it flows out your ears, but conversion to testosterone occurs only to the tune of the gatekeeper.
http://www.musculardevelopment.com/oct/andro1.html   (1365 words)

  
 MGH research shows androstenedione can raise testosterone levels
Estrogen levels also increased in both the 100 and 300 mg groups: estrone increased 74 percent at 100 mg and 196 percent at 300 mg, and estradiol increased 42 percent at 100 mg and 128 percent at 300 mg.
"A lot of people have been taking androstenedione under the assumption that it will raise their testosterone levels," says Joel Finkelstein, MD, of the MGH Endocrine Unit, the report's senior author.
The research team -- led by Benjamin Leder, MD, also of the MGH Endocrine Unit -- enrolled 42 healthy men aged 20 to 40 with no previous history of taking androstenedione, steroids or any medication known to affect steroid levels.
http://www.eurekalert.org/pub_releases/2000-02/MGH-Mrsa-0802100.php   (710 words)

  
 Androstenedione
Because the elevated testosterone levels swiftly return to normal baseline levels, there is little risk of negative feedback suppression of the hypothalamus, pituitary or testicles.
For those whose testosterone levels may need a boost, 25-50 mg of androstenedione taken at bedtime, and perhaps again first thing in the morning, will mimic the body's normal diurnal rhythms.
Significantly, this testosterone increase was transient, and lasted only a couple of hours - and remained at peak-levels for only a few minutes -just as occurs naturally in our bodies.
http://www.thehormoneshop.com/androstenedione.htm   (1528 words)

  
 CNN - Study debunks androstenedione muscle benefits - June 1, 1999
Many body builders and athletes swear by supplements like androstenedione, but experts say it isn't the supplements that are making the difference in their physical performance.
Researchers found no difference between the muscle strength or testosterone levels in the blood of those who took androstenedione and those who took the placebo.
(CNN) -- Androstenedione, a popular supplement touted as enhancing athletic performance in men, does not increase testosterone in the blood or enhance muscle as previously believed and can be dangerous, according to a small study published in this week's Journal of the American Medical Association (JAMA).
http://www.cnn.com/HEALTH/men/9906/01/andro.letdown   (426 words)

  
 Androstenedione Health Risks Confirmed, Benefit Questioned
"Androstenedione is basically a plant extract," explains Christopher Steidle, MD, a clinical associate professor of urology at Indiana State University in Fort Wayne.
Steven Petak, MD, chairman of the reproductive medicine committee of the American Association of Clinical Endocrinologists, tells WebMD that prescription products are much safer than androstenedione because the prohormone actually can cause a drop in the body's testosterone production.
"This finding supports what we have thought about androstenedione all along," says David Pearson, PhD, professor of exercise physiology in the Human Performance Laboratory at Ball State University in Fort Wayne, Ind. Pearson provided WebMD with an objective assessment of the study.
http://www.webmd.com/content/article/18/1676_52084   (955 words)

  
 Urinary Excretion of Steroid Metabolites after Chronic Androstenedione Ingestion -- Brown et al. 89 (12): 6235 -- ...
one subject in the androstenedione group was Asian.
Brown WJ, Basil MD, Bocarnea MC 2003 The influence of famous athletes on health beliefs and practices: Mark McGwire, child abuse prevention, and androstenedione.
variability in the response to androstenedione is highlighted
http://jcem.endojournals.org/cgi/content/full/89/12/6235   (2357 words)

  
 JAMA Study on Androstenedione -A Critique
For example, one possible outcome from taking oral androstenedione might have been no appreciable increase in blood serum levels.
According to Wright/Lenard, this balance may be desirable regarding prostate health and important in preventing prostate cancer.
One outcome of the present study might have been a change in LH indicating a reduction in the body's own production of testosterone.
http://www.afpafitness.com/articles/Androsten.html   (3127 words)

  
 Androstenedione
Androstenedione currently is sold widely at health and nutrition centers and on the Internet as a legal way to boost the body's levels of testosterone (right, above), which in turn increases one's ability to build muscle tissue and strength.
Hence it is entirely possible that athletes who make use of androstenedione are endangering their health for no compensating benefit.
Androstenedione (below, in a space-filling model) is indeed converted in the body to testosterone; just a cursory examination of the two structures above indicates how closely related the two substances are.
http://chemistry.umeche.maine.edu/MoM/androstene.html   (364 words)

  
 Androstenedione
Nonetheless, the researchers regarded the observed reduction as clinically relevant, and others have observed that the higher doses used by many body builders and athletes over longer periods of time could result in significant cardiovascular risk.
Marketers often neglect to mention, however, that this study involved only two subjects--both women.
Increased levels of androstenedione itself have been associated in some, but not all, studies with increased risk of prostate and pancreatic cancers.
http://www.pdrhealth.com/drug_info/nmdrugprofiles/nutsupdrugs/and_0022.shtml   (1083 words)

  
 Androstene 300 mg for Muscle Mass
If Androstenedione is taken as directed, and that is once a day prior to physical activity, the positive benefits can be had without any significant negative feedback response to your natural Testosterone production.
Tribulus Terrestris does not work the way prohormones such as Androstenedione and DHEA.
Secondary to this increase, effects are often seen such as Increased Energy, Enhanced Recovery, Mental Alertness, Muscle Growth, Heightened Sexual Arousal and Performance, as well as a Greater Sense of Well Being !!
http://www.pricespower.com/androstn.htm   (2378 words)

  
 Androstenedione
Many athletes claim that this product enhances muscle mass due to personal experience, but again that is not proven yet.
The high testosterone levels may lead to some longer lasting effects such as deep voice and increased facial hair (beard), enlargement of genitals and other masculine characteristics.
This study proved the androstenedione increased androstenedione, estrone and estradiol levels within the body.
http://www.udel.edu/chem/C465/senior/fall00/Performance1/andro.htm.html   (1040 words)

  
 CERI Q&A: Risks from androstenedione?
For men and women who may want a brief testosterone surge for 1) enhancing anabolic gains from strength exercises, or 2) enhancing libido for prosexual purposes, androstenedione can be an effective option.
Are there any down-side risks for its use.
I believe that many people will suffer estrogen-related side effects from androstenedione that will have far more negative impact on their health than the positive effects from androstenedione or testosterone.
http://www.ceri.com/q_v6n8q1.htm   (804 words)

  
 Health Effects of Androstenedione
By contrast, serum levels of estradiol and estrone were raised by ~50% by 2 weeks of therapy with 300 mg daily.
This, in conjunction with the known potential for site-of-action direct conversion of androstenedione to testosterone, leads to a conclusion of a direct relationship between risk of androgenic or estrogenic effects of treatment and dose and duration of treatment.
Androstenedione treatment did reduce HDL-C (good cholesterol) relative to placebo.
http://www.fda.gov/oc/whitepapers/andro.html   (1689 words)

  
 HHS LAUNCHES CRACKDOWN ON PRODUCTS CONTAINING ANDRO
"Androstenedione and other performance-enhancing drugs undercut these benefits by endangering our children's healthy development and teaching them that cheating is an acceptable component of pursuing excellence."
There is also evidence that the use of androgenic steroids such as androstenedione may have long-term adverse health consequences.
The American Academy of Pediatrics, the Endocrine Society, the American Medical Association, and other health professional groups have cautioned against the use of androgenic and anabolic steroids and their precursors, like androstenedione, because of their potential long-term adverse health consequences.
http://www.fda.gov/bbs/topics/news/2004/hhs_031104.html   (1013 words)

  
 The Andro Debate Report
Andro is also already made in your body.
Androstenedione is a natural chemical found in the body that produces testosterone.
Most of the health risks for Androstenedione are not known, and the long-term effects are not known at all.
http://www.angelfire.com/tx2/andro   (888 words)

  
 Androstenedione - A steroid by any other name is still a steroid
These latter effects may enable endurance athletes to train harder while minimizing overtraining.
Once released into the blood it is rapidly converted into testosterone, but there are also pathways through which androstenedione is converted into estrogen.
It has been touted as both a performance and recovery enhancer, and is being used by many athletes in many different sports.
http://www.rice.edu/~jenky/sports/andro.html   (704 words)

  
 Viggah™ - Androstenedione
Testosterone plays an important role in the maintenance of lean body mass, bone density, skin elasticity, cardiovascular health and last but not least, libido.
Androstenedione is a precursor to testosterone &; only one step away from becoming testosterone in the body’s chemical pathway.
There is growing evidence that although hormone production declines with age, testosterone may be the key to reversing symptoms such as reduced energy, endurance, stamina, sexual drive and performance, skin elasticity, muscle and bone strength.
http://www.springboard4health.com/products/viggah/viggah_main.html   (381 words)

  
 Nutritional Supplement Index: Androstenedione
I Gained About 15 lbs In A Month While Using Androstenedione.
Androstenedione and Creatine Have, I Believe, Caused Undesirable Side Effects.
I Was Wondering If I Will Be Able To Pass A Drug Test, Or Will The Androstenedione Show Up On The Drug Test?
http://www.nutritionalsupplements.com/indexandro.html   (1336 words)

  
 FDA Warning on Androstenedione (Andro): Consumer Advisory [NCCAM Health Information]
FDA Warning on Androstenedione (Andro): Consumer Advisory [NCCAM Health Information]
FDA White Paper, "Health Effects of Androstenedione": www.fda.gov/oc/whitepapers/andro.html (3/11/2004)
While ads claim that andro-containing supplements promote increased muscle mass, research has not shown this to be the case.
http://nccam.nih.gov/health/alerts/androstenedione/consumeradvisory.htm   (218 words)

  
 Androstenedione - Wikipedia, the free encyclopedia
Because androstenedione is converted in part to estrogens, persons taking this supplement may have estrogenic side effects.
Although andro has been touted as an anabolic steroid, the substance does not increase blood levels of testosterone, and does not increase muscle size or strength in young healthy men.
Some androstenedione is also secreted into the plasma, and may be converted in peripheral tissues to testosterone and estrogens.
http://en.wikipedia.org/wiki/Androstenedione   (377 words)

  
 Androstenedione
Androstenedione does raise testosterone levels with use, so in this regard it is an effective supplement.
However it has also been demonstrated to raise estrogen levels even more significantly, due to the fact that androstenedione may also be directly converted to estrone (an estrogen) in the body.
It is therefore an effective supplement, but also seems to be the prohormone most capable of inducing gynecomastia.
http://www.natural-steroids.com/androstenedione.htm   (122 words)

  
 Androstenedione
Although further studies need to be performed to see if higher doses of Androstenedione 100
This fact is important as there are other substances that convert to testosterone but also convert to estrogens as well.
an enzyme in the liver acts on the molecular structure of androstenedione, and through this one reaction converts it to testosterone.
http://www.angelfire.com/on/fit98/2.html   (945 words)

  
 Viggah™ Androstenedione-More Info
Unfortunately, studies on androstenedione taken orally indicated that in some individuals it increased estrogen levels which in turn could increase the risk of cancer and heart disease.
Along with that decline there is a subtle, often progressive drop in energy, endurance, stamina, willpower and mood.
McGwire revealed that his career had been stymied for several years because of nagging athletic injuries; injuries which did not occur during the two seasons he used androstenedione.
http://www.springboard4health.com/products/viggah/viggah_more_01.html   (1351 words)

  
 FDA/CFSAN - Questions and Answers: Androstenedione
Androstenedione is an anabolic steroid precursor because it is converted to testosterone in the body.
Women may also be at increased risk for breast cancer and endometrial cancer.  Children and adolescents are at risk for androgenic and estrogenic effects as in adults, for early onset of puberty, and for premature cessation of growth, such that they will be short as adults.
A: FDA concluded that there is inadequate information to establish that a dietary supplement containing androstenedione will reasonably be expected to be safe.  In fact, FDA believes that these products may increase the risk of serious health problems because they are converted in the body to testosterone which is an androgenic and anabolic steroid.
http://www.cfsan.fda.gov/~dms/androqa.html   (708 words)

  
 Androstenedione
Some reports claim that androstenedione may help certain types of sexual dysfunction and impotence by stimulating the libido (sex drive).
Many people have reported rapid increases in muscle size, strength and recovery from exercise from androstenedione alone!
The statements in this website have not been evaluated by the Food and Drug Administration.
http://www.tigerfitness.com/Androstenedione.htm   (380 words)

  
 Androstenedione definition - Medical Dictionary definitions of popular medical terms
Androstenedione definition - Medical Dictionary definitions of popular medical terms
Has been used as a supplement to increase muscle strength.
Androstenedione: A pivotal adrenal steroid that is a precursor to testosterone and other androgens.
http://www.medterms.com/script/main/art.asp?articlekey=31441   (165 words)

  
 CNN - Concern grows over McGwire's muscle mass supplement - September 24, 1998
The hormone, which is produced naturally in the body, increases levels of testosterone that help build muscle.
Steroids and muscle enhancers have been around for years, but the hormone androstenedione has only recently gained notoriety with Cardinals star slugger Mark McGwire's acknowledgement that he has been using the substance for more than a year.
Some heath experts are concerned androstenedione could carry the same health risks as steroids.
http://www.cnn.com/HEALTH/9809/24/espn.andro   (473 words)

  
 Androstenedione
Study debunks androstenedione muscle benefits - CNN, 6/1/99
Androstenedione Use May Increase Testosterone And Estrogen Levels
DION increased (p < 0.05) serum androstenedione (342%), free testosterone (38%), dihydrotestosterone (71%), and estradiol (103%) concentrations.
http://qualitycounts.com/fpandrostenedione.html   (941 words)

  
 Androstenedione Warning
The Endocrine Society, representing the specialists who conduct hormone research and treat disorders of the endocrine system, wants you to know some important facts about androstenedione -- "Andro" for short.
They increase body hair, facial hair and acne; deepen the voice; enhance prostate growth; and promote muscle growth.
Androstenedione is not a banned androgenic steroid in baseball, but it is banned in most other sports, both in the U.S. and abroad.
http://www.quackwatch.org/01QuackeryRelatedTopics/DSH/andro.html   (337 words)

  
 ESPN.com: GEN - Steroids bill aims to take andro off shelves
Biden cited a study published in the Journal of the American Medical Association concluding that "orally administered androstenedione increases testosterone and estrogen levels in healthy men, particularly at higher doses." The study also notes that long-term administration could be hazardous, particularly in women and children.
Andro increases both testosterone and estrogen levels in the body.
The bill would also ban THG, the substance at the center of a growing scandal involving several elite athletes.
http://espn.go.com/gen/news/2003/1024/1645745.html   (1171 words)

  
 DietFraud.com - Supplements that make outrageous claims
In the study, Andro did NOT enhance muscle-building or increase testosterone in the blood.
The new rule, effective Aug. 1, states that NCAA member schools may only provide non-muscle building nutritional supplements and only to give athletes calories and electrolytes, such as those that are found in energy bars, carbohydrate boosters and sports drinks.
Attorney General Bill Lockyer filed suit against nearly three dozen manufacturers and distributors of popular bodybuilding "androstenedione" supplements for failure to warn consumers that the product is a form of anabolic steroids and can cause significant fertility problems.
http://www.dietfraud.com/action_supplement.html   (443 words)

  
 Vitalabs Inc.- the Natural Choice
ANDROSTENEDIONE: This naturally-occurring prohormone is a precursor to testosterone and helps elevate the levels of this important male hormone.
ASPARAGUS: The Chinese believe that this herb will increase feelings of love and passion.
http://www.vitalabs.com/glossary.html   (2121 words)

  
 AskMen.com - Androstenedione side effects
Even if the dosage of testosterone received is sufficient, you may experience certain side effects.
Health & Life Advice > Androstenedione side effects
IGN's enterprise databases running Oracle, SQL and MySQL are professionally monitored and managed by Pythian Remote DBA.
http://www.askmen.com/sports/health_60/91c_mens_health.html   (690 words)

  
 ANDROSTENEDIONE
There are two different pathways the body can create androstenedione: either from DHEA (dehydroepiandrosterone) or from a hormone called "17 alpha-hydroxyprogesterone." Scientists found androstenedione can be converted to testosterone (and vice versa).
It occurs naturally in both men and women, also found in the pollen of Scotch pine trees.
When it comes to "drug-free" testosterone boosters, the first place trophy goes to the adrenal hormone androstenedione (pronounced, "an-dro-sten-de-own") or Andro for short.
http://www.internalhealth.com/androstenedione.htm   (376 words)

  
 Andro - Andro Supplements Sale Information - Testosterone Stack - Andro Ban by FDA<
Studies indicate that Andro is a direct testosterone precursor and when taken orally, will increase blood levels of both androstenedione and testosterone.
I can honestly say that Androstenedione is the one and only supplement that has worked for me!"
According to the German patent for androstenedione, 50 mg given orally to men raised plasma testosterone levels from 140% to 183% of normal, 100 mg of oral androstenedione raised levels from 211% to 337% of normal.
http://www.wholesale-andro.com   (480 words)

  
 steroid major league baseball steroid policy winstrol use
04.20.05 - Adulterated Androstenedione: What FDA's Action Means for Industry
http://testosterone.gggtown.com   (1077 words)

  
 Anti Aging - Anti Aging Treatment ☼
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http://www.anti-aging-secrets.info/antiagingtreatment   (2026 words)

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