an androgen, C19H30O2, less potent than testosterone, secreted by the testis, ovary, and adrenal cortex.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Androstanedione with a double bond between C-4 and C-5; an androgenic steroid of weaker biologic potency than testosterone; secreted by the testis, ovary, and adrenal cortex.
Farlex Partner Medical Dictionary © Farlex 2012
An unsaturated androgenic steroid, C19H26O2, that is secreted by the testis, ovary, and adrenal cortex and is a precursor of both androgens and estrogens. Until 2005, when its nonprescription sale and use became illegal in the United States, synthetic androstenedione was used as a dietary supplement to enhance athletic performance.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
androstenedione An androgenic steroid less potent than testosterone, which is produced by the adrenal cortex, ovary and testis and converted to estrone in fat and the liver; in men, overproduction of androstendione may cause feminisation.
Cushing syndrome; ovarian, testicular or adrenocortical tumours; adrenal hyperplasia; polycystic ovary disease.
Hypogonadism, Addison’s disease.
Women (premenopausal)—0.5–3 ng/mL; women (postmenopausal)—0.3-8 ng/mL; men—0.9–1.7 ng/mL.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
androstenedione An androgenic steroid, less potent than testosterone, which is produced by the adrenal cortex and gonads, and converted to estrone in fat and the liver; in ♂, overproduction of androstendione may cause feminization; androstenedione is ↑ in Cushing syndrome, ovarian, testicular, or adrenocortical tumors, adrenal hyperplasia, polycystic ovary disease; it is ↓ in hypogonadism, Addison's disease
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
An androgenic steroid of weaker biologic potency than testosterone; secreted by the testis, ovary, and the cortex of the suprarenal gland.
See also: performance enhancing drug
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Also called "andro," this hormone occurs naturally during the making of testosterone and estrogen.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
Patient discussion about androstenedione
Q. What is the difference between ADD and ADHD? My Son has been diagnosed with ADD. Is this the same as ADHD?
A. Here is the general description:
ADHD: Think of these types of children as the energizer bunnies in constant motion. They tend to move about excessively, fidgeting and squirming, and always into things. Remaining seated when expected to is often an impossible task.
ADD: Children with predominately inattentive behaviors, more commonly referred to as ADD, may act very differently. These are the “daydreamers.” They may appear spacey, forgetful, and distracted. They move from one activity to the next, never quite able to complete a task. Often times they begin a task without waiting for the directions and end up frustrated and uncertain. They may seem rather messy, careless and disorganized.
Q. Is there any connection between ADD and Autism? I refer to ADD, not ADHD
A. there is a theory that ADD and learning disabilities are a "continuum" up to Asperger syndrome and autism. due to similarities in brain function and symptoms. mind you- it's a theory.
Q. What is the difference between ADD and ADHD? I know that H stands for hyperactivity, but what does it mean by symptoms? does It have the same treatment?
A. They differ by ADHD kids tend to move around all the time (not like ADD who can sit but not listen), and they are more then careless. They tend to injure themselves over childhood. <br>I saw a nice video that explains about those disorders! <br><object width='425' height='355' id='FiveminPlayer'><param name='allowfullscreen' value='true'/><param name='movie' value='http://www.5min.com/Embeded/5538/'/><embed src='http://www.5min.com/Embeded/5538/' type='application/x-shockwave-flash' width='425' height='355' allowfullscreen='true'></embed></object>More discussions about androstenedione
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