Navigation Links
Free Testosterone RIA Test

ProductsFree Testosterone RIA Test
Company Diagnostic Systems Laboratories, Inc.
Item Free Testosterone RIA Test
Features 
Description Only 1-2% of circulating testosterone exists as unbound or free testosterone. The majority, approximately 60%, is bound to SHBG with high affinity [1], while the remainder is loosely bound to albumin. Both the albumin-bound and free fractions may be biologically active, while SHBG effectively inhibits testosterone action. Measurement of the free or unbound fraction of serum testosterone has been proposed as a means of estimating the physiologically bioactive hormone. Free testosterone levels are elevated in women with hyperandrogenism associated with hirsutism in the presence or absence of polycystic ovarian disease [1,2,3]. In addition, free testosterone measurements may be more useful than total testosterone in situations where SHBG is increased or decreased (e.g. hypothyroidism, obesity and hyperinsulism).

Traditional methods for measurement of free testosterone involve the use [3H]-testosterone combined with labor-intensive separation techniques to calculate bound and free fractions. The DSL method, however, utilizes an I-125 labeled testosterone analog which has low affinity for SHBG and albumin for direct estimation of unlabeled free testosterone levels in unextracted samples.

  1. Cumming DC & Wall SR. J Clin Endocrinol Metab 61:873-876, 1985.
  2. Westphal U. Steroid-Protein Interactions. Springer-Verlag, Berlin, 1986
  3. Pugeat M, et al.: Androgens in polycystic ovarian syndrome. IN Tolis G, Bringer J, Chrousos GP (eds): Intraovarian regulators and polycystic ovarian syndrome. NY Academy of Sciences, New York, 1993, pp. 124-135.
Info Diagnostic Systems Laboratories, Inc.
Customer Service: (800) 231-7970
Web site: http://www.dslabs.com

Related medicine products :

1. Testosterone EIA Reproductive Markers 020-DR-1559
2. Free Testosterone EIA Test
3. Ultra-Sensitive Testosterone EIA
4. Testosterone EIA Test
5. Testosterone EIA
6. Testosterone EIA kit
7. Testosterone ELISA
8. Testosterone Enzyme Immunoassay Test Kit
9. Testosterone RIA Test
10. Testosterone, Adult Male
11. Testosterone, Bioavailable & Sex Hormone Binding Globulin (Includes Total Testosterone), Adult Male
Streck-CD3500 Hemoglobin/Lyse is a lytic reagent for the quantitative determination of hemoglobin on the Abbott CELL-DYN® 3500 and 3700. The shelf life is two years from the date of manufacture....
... solution manufactured for use as a diluent ... III is for use on the Coulter® ... S-Plus IV, V, VI with three-part differential ... 1600. The shelf life is two years ...
Streck-Detergent IIIA is a balanced electrolyte solution for use as a rinsing and hemoglobin blanking diluent. It is manufactured specifically for use on the Abbott CELL-DYN® 1700 and 1800. The s...
... is a 5-part differential control that controls ... CELL-DYN 3200, 3500, 3700 and 4000 instruments. ... red blood cells that can be analyzed ... assay contains automated and manual reticulocyte values ...
Medicine Products:
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... Apple ... care services, staged a mock evacuation of the facility as part of a disaster ... Fire Department, Echo Hose EMS and Shelton City Emergency Manager, as well as the ...
(Date:10/13/2017)... , ... October 13, 2017 , ... Global Healthcare Management’s ... Alexandria Park in Milford, NJ. This free event, sponsored by Global Healthcare Management’s ... The fun run is geared towards children of all ages; it is a ...
(Date:10/13/2017)... ... October 13, 2017 , ... “The Journey: From the ... danger possible to save lost souls in the Philippines. “The Journey: From the Mountains ... a dedicated teacher of the Bible. She has taught all ages and currently teaches ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the largest and ... plans to open a flagship location in Covington, LA at 401 N. U.S. Highway ... store next to Office Depot in the Holiday Square shopping center. Its location allows ...
(Date:10/12/2017)... ... 2017 , ... Asante, a nationally recognized health system in ... existing home health joint venture through an agreement, effective October 1, 2017, to ... home health company with Asante, delivering clinically integrated care, for the past eight ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... -- NDS received FDA 510(k) clearance in May 2017 for its highly ... designed for endoscopy environments. An innovative secondary monitor solution, ZeroWire ... support the improvement of patient outcomes, procedural efficiency, and the lowering ... ... ...
(Date:10/4/2017)... 4, 2017  South Korean-based healthcare product Development Company ... "cprCUBE" on Kickstarter. The device will educate the user ... with better efficiency compared to the dated and pricey ... on efficacy of the compression for a more informed ... goal to raise $5,000. ...
(Date:10/2/2017)... 2017  Eli Lilly and Company (NYSE: ... third quarter of 2017 on Tuesday, October 24, 2017. ... day with the investment community and media to further ... call will begin at 9 a.m. Eastern time. Investors, ... webcast of the conference call through a link that ...
Breaking Medicine Technology: