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Manufactured by BioVendor

Testosterone, Free Human ELISA

  • Regulatory status:RUO
  • Type:Competitive ELISA, Immobilized antigen
  • Species:Human
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Cat. No. Size Price


RCD016R 96 wells (1 kit)
PubMed Product Details
Technical Data

Type

Competitive ELISA, Immobilized antigen

Applications

Serum

Sample Requirements

25 µl/well

Shipping

At ambient temperature. Upon receipt, store the product at the temperature recommended below.

Storage/Expiration

Store the complete kit at 2–8°C. Under these conditions, the kit is stable until the expiration date (see label on the box).

Calibration Curve

Calibration Range

0.25–125 pg/ml

Limit of Detection

0.17 pg/ml

Summary

Research topic

Steroid hormones

Summary

Testosterone is the most important male sex hormone, it is responsible for genital development, beard growth, muscle development and general male characteristics. The measurement of serum or plasma levels is an index of leydig cell function and high or low values correlate well with hypo or hyper gonadism. In females small amounts of testosterone are produced by the adrenals and ovaries. High levels of testosterone in females indicates excessive androgen production and are found in progressive hirsutism and virilization, Cushing’s syndrome and a deficiency in one or more of the specific enzymes required for normal steroid biosynthesis.

References to Summary

References to Testosterone

  • Check JH, Ubelacker L, Lauer CC. Falsely elevated steroidal assay levels related to heterophile antibodies against various animal species. Gynecol Obstet Invest. 1995;40 (2):139-40
  • Dechaud H, Lejeune H, Garoscio-Cholet M, Mallein R, Pugeat M. Radioimmunoassay of testosterone not bound to sex-steroid-binding protein in plasma. Clin Chem. 1989 Aug;35 (8):1609-14
  • Ekins R. Hirsutism: free and bound testosterone. Ann Clin Biochem. 1990 Jan;27 ( Pt 1):91-4
  • Joshi UM, Shah HP, Sudhama SP. A sensitive and specific enzymeimmunoassay for serum testosterone. Steroids. 1979 Jul;34 (1):35-46
  • Manni A, Pardridge WM, Cefalu W, Nisula BC, Bardin CW, Santner SJ, Santen RJ. Bioavailability of albumin-bound testosterone. J Clin Endocrinol Metab. 1985 Oct;61 (4):705-10
  • Marcus GJ, Durnford R. A simple enzyme-linked immunosorbent assay for testosterone. Steroids. 1985 Dec;46 (6):975-86
  • Oka K, Hirano T, Noguchi M. Changes in the concentration of testosterone in serum during the menstrual cycle, as determined by liquid chromatography. Clin Chem. 1988 Mar;34 (3):557-60
  • Palatsi R, Hirvensalo E, Liukko P, Malmiharju T, Mattila L, Riihiluoma P, Ylostalo P. Serum total and unbound testosterone and sex hormone binding globulin (SHBG) in female acne patients treated with two different oral contraceptives. Acta Derm Venereol. 1984;64 (6):517-23
  • Pardridge WM, Demers LM. Bioavailable testosterone in salivary glands. Clin Chem. 1991 Feb;37 (2):139-40
  • Rassaie MJ, Kumari GL, Rao PN, Shrivastav TG, Pandey HP. Influence of different combinations of antibodies and penicillinase-labeled testosterone derivatives on sensitivity and specificity of immunoassays. Steroids. 1992 Mar;57 (3):112-8
  • Sheldon PE, Coppenger CJ. A rapid radioimmunoassay for serum testosterone. Steroids. 1977 Aug;30 (2):149-57
  • Singer F, Zumoff B. Subnormal serum testosterone levels in male internal medicine residents. Steroids. 1992 Feb;57 (2):86-9
  • Swinkels LM, Meulenberg PM, Ross HA, Benraad TJ. Salivary and plasma free testosterone and androstenedione levels in women using oral contraceptives containing desogestrel or levonorgestrel. Ann Clin Biochem. 1988 Jul;25 ( Pt 4):354-9
  • Swinkels LM, Ross HA, Benraad TJ. A symmetric dialysis method for the determination of free testosterone in human plasma. Clin Chim Acta. 1987 Jun 15;165 (2-3):341-9
  • Tateiki, K., et al. Enzymeimmunoassay of serum Testosterone. Steroids. 30:25, 1977;
  • Wilke TJ, Utley DJ. Total testosterone, free-androgen index, calculated free testosterone, and free testosterone by analog RIA compared in hirsute women and in otherwise-normal women with altered binding of sex-hormone-binding globulin. Clin Chem. 1987 Aug;33 (8):1372-5
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