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
... TISSEEL VH Fibrin Sealant has been ... in surgical repair. Containing uniform, reproducible concentrations ... Sealant simulates the final stage of the ... matrix clot that firmly adheres to connective ...
The Icy catheter is inserted into the femoral vein and resides in the inferior vena cava. Saline flow within the balloons creates a proprietary vortex flow pattern which maximizes heat exchange with...
...
Designed to minimize emblolic debris in SVGs and carotids...
Medicine Products:
(Date:12/4/2016)... ... 03, 2016 , ... Penrose Senior Care Auditors® was announced ... evening at the 26th Annual SMU Cox Dallas 100™ Awards Ceremony and Banquet ... for Entrepreneurship. Dallas 100™, co-founded by the Caruth Institute, honors the ingenuity, commitment ...
(Date:12/4/2016)... , ... December 04, 2016 , ... ... major cosmetic surgery can now take advantage of a cosmetic procedure known as ... rejuvenation treatment that reduces the appearance of age spots, fine lines, uneven ...
(Date:12/4/2016)... PITTSBURGH, PA (PRWEB) , ... December 04, 2016 , ... ... not enough. One must brush properly to achieve optimal results. This important necessity inspired ... saw a need for a way to ensure that people break or avoid bad ...
(Date:12/2/2016)... ... ... Lori G. Cohen and Sara K. Thompson , shareholders in ... Conference Institute’s 21st Drug & Medical Device Litigation Conference , taking place in New ... Cohen, who chairs the firm’s Pharmaceutical, Medical Device & Health Care Litigation Practice and ...
(Date:12/2/2016)... DIEGO, Calif. (PRWEB) , ... December 02, 2016 , ... ... Event at the Hard Rock Hotel San Diego honoring the 2016 MPN Heroes—eight individuals ... myeloproliferative neoplasms (MPNs) by going above and beyond the standard of care, demonstrating leadership ...
Breaking Medicine News(10 mins):
(Date:12/5/2016)... Health and Gateway Health proudly announce a dynamic collaboration that ... plan members with specific high risk needs. In ... group of consumers, Wellbridge combines technology and population expertise with ... members, daily behaviors and lifestyle. ... , , ...
(Date:12/5/2016)...  New research by the CVS Health (NYSE: ... U.S. Department of Health and Human Services, Office ... (ASPR), published online today in JAMA Internal ... patients with chronic conditions to refill medications prior ... affirms that public-private partnerships can facilitate timely pharmacy ...
(Date:12/5/2016)... 5, 2016  BD (Becton, Dickinson and Company) (NYSE: ... company, will demonstrate an enhanced technology platform designed with ... the company,s leading Pyxis™ and Alaris™ systems, at this ... Midyear Meeting being held in Las ... national data show that approximately 68 percent of medication ...
Breaking Medicine Technology: