Navigation Links
Androstenedione RIA Test

ProductsAndrostenedione RIA Test
Company Diagnostic Systems Laboratories, Inc.
Item Androstenedione RIA Test
Features Inquire
Description Androstenedione, produced in the adrenal gland and gonads, is the immediate precursor to both testosterone and estrone, both of which may be subsequently converted to estradiol. Androstenedione has relatively weak androgenic activity, estimated at ~(less than or equal to) 20% of testosterone [1]. However, serum androstenedione levels often exceed testosterone in both normal and disease states. Secretion and production rates also exceed those of testosterone in women in whom significant extra-adrenal conversion of androstenedione to testosterone occurs [1,2,3].

Measurement of serum androstenedione provides a useful marker of androgen biosynthesis. Elevated androstenedione levels have been demonstrated in virilizing congenital adrenal hyperplasia [4]. Serum androstenedione levels are also increased in polycystic ovary syndrome, ovarian stromal hyperthecosis, 3b-hydroxysteroid dehydrogenase deficiency, and other causes of hirsutism in women [3,5]. Elevated serum androstenedione levels may also occur in adrenal and ovarian virilizing tumors [3].

  1. 1. Dorfman RI, Shipley RA: Androgens. John Wiley and Sons, New York, 1956, pp.116-128.
  2. Horton R, Tait J: Androstenedione production and interconversion rates measured in peripheral blood and studies on the possible site of its conversion to testosterone. J Clin Invest 45:301-313, 1966.
  3. Pang S, Riddick L: Hirsutism. IN Lifshitz F (ed): Pediatric Endocrinology, A Clinical Guide, second edition. Marcel Dekker, Inc., New York, 1990, pp. 259-291.
  4. Cavallo A, Corn C, Bryan GT, Meyer WJ III: The use of plasma androstenedione in monitoring therapy of patients with congenital adrenal hyperplasia. J Pediatr 95: 33-37, 1979.
  5. Rittmaster RS, Thompson DL: Effects of leuprolide and dexamethasone on hair growth and hormone levels in hirsute women: the relative importance of the ovary and adrenal in the pathogenesis of hirsutism. J Clin Endocrinol Metab 70:1096-1102, 1990.
  6. Zwicker H, Rittmaster RS: Androsterone sulfate: physiology and significance in hirsute women. J Clin Endocrinol Metab 76:112-116, 1993.
  7. Barrett-Connor E, Garland C, McPhillips JB, Khaw K-T, Wingard DL: A prospective, population-based study of androstenedione, estrogens, and prostate cancer. Canc Res 50:169-173, 1990.
Info Diagnostic Systems Laboratories, Inc.
Customer Service: (800) 231-7970
Web site: http://www.dslabs.com

Related medicine products :

1. Androstenedione EIA Test
2. Androstenedione
... is a national reference laboratory and a ... development. ARUP offers an extensive test menu ... in clinical and anatomic pathology. Owned by ... include more than half of the nation's ...
... Laboratories is a national reference laboratory and ... and development. ARUP offers an extensive test ... tests in clinical and anatomic pathology. Owned ... clients include more than half of the ...
... national reference laboratory and a worldwide leader ... offers an extensive test menu of highly ... and anatomic pathology. Owned by the University ... than half of the nation's university teaching ...
... ARUP Laboratories is a national reference ... laboratory research and development. ARUP offers an ... unique medical tests in clinical and anatomic ... ARUP Laboratories' clients include more than half ...
Medicine Products:
(Date:10/12/2017)... Bethesda, MD (PRWEB) , ... October 12, 2017 , ... ... Award of Excellence to Carol Friedman, PhD, FACMI, during the Opening Session of AMIA’s ... 4 – 8. , In honor of Morris F. Collen, a pioneer in the ...
(Date:10/12/2017)... Rockville, Maryland (PRWEB) , ... October 12, 2017 ... ... a magnetic drug delivery system that we intend to develop to enable prevention ... regimens can lead to severe hearing loss, especially in pediatric patients. For cisplatin, ...
(Date:10/12/2017)... ... October 12, 2017 , ... HMP , a leader in healthcare events ... Magazine Eddie Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during the ... The annual award competition recognizes editorial and design excellence across a range of sectors. ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... On Saturday, ... a treadmill relay – Miles by Moonlight to raise money for the American Heart ... or more. , Teams will work together to keep their treadmills moving for ...
(Date:10/12/2017)... ... October 12, 2017 , ... Health Literacy Innovations (HLI), ... software tool, and the Cancer Patient Education Network (CPEN), an independent professional organization ... a new strategic alliance. , As CPEN’s strategic partner, HLI will help ...
Breaking Medicine News(10 mins):
(Date:10/2/2017)... 2017 Diplomat Pharmacy, Inc. (NYSE: ... Consulting, LLC , and named its founder as Diplomat,s ... Tennessee , will operate under Diplomat ... service offerings for health care partners to include IT ... "In an interoperable world, technology delivers comprehensive ...
(Date:10/2/2017)... PHILADELPHIA , Oct. 2, 2017 Halo Labs announces ... particle analysis system called the HORIZON at MIBio 2017 in ... analyzes subvisible and visible particulate matter in biopharmaceutical samples with unprecedented ... use of the novel technique Backgrounded Membrane Imaging. ... The HORIZON subvisible particle analysis system ...
(Date:9/28/2017)... Sept. 28, 2017 Cohen Veterans Bioscience and ... use of wearable and home sensors for real-time monitoring ... Signal Foundation, a nonprofit organization focused on disruptive health ... an affordable analytical system to record and integrate behavioral, ... ...
Breaking Medicine Technology: