For the quantitative detection of 11-Ketotestosterone
Androgenic hormones, such as testosterone, affect many male organisms’ growth, size, and reproduction. In teleost fish, along with testosterone, 11-ketotestosterone plays a significant role by inducing reproductive characteristics in both males and females. In particular male fish, 11-ketotestosterone levels increase during spermatogenesis in the spawning season, while in some female fish, 11-ketotestosterone increases before yolk deposition to regulate ovarian development. The presence and involvement of 11-ketotestosterone in other species, such as humans, have only recently been established. In contrast to fish, primate serum 11-ketotestosterone concentrations were not significantly different in males and females, despite males having significantly higher circulating testosterone. This evidence suggests that 11-ketotestosterone production in these species may not be testis-dependent and primarily originates from adrenal-derived 11-oxyandrogen precursors. Recent studies have discovered more 11-ketotestosterone than its precursors, androstenedione, and testosterone, in prepubertal children and postmenopausal women compared to men. This discovery highlights the potential use of 11-ketotestosterone as a clinical biomarker to screen adrenal androgen excess in disease conditions such as polycystic ovary syndrome (PCOS) and hirsutism in women.
| Marque | Invitrogen |
|---|---|
| Réf. B-LABO | BL-RE-171982 |
| Réf. fabricant | 18061653 |
| Plage de dosage | 8.2 to 2000 pg/mL |
| Sensibilité du dosage | 1.85 pg/mL |
| Conjugué | HRP |
| Type de produit | ELISA |
| Type d’échantillon | Plasma |
| À utiliser avec (équipement) | Colorimetric Microplate Reader |
| Coefficient de variation inter-dosage | <8% |
| Coefficient de variation intra-dosage | <6% |
| Contenus des kits | Pre-coated 96 well plate, Standard, Antibody, HRP-Conjugated Detection Antibody, Assay Buffer Concentrate, Wash Buffer, TMB Substrate, Stop Solution, Adhesive Plate Covers |
| Marqueur ou colorant | HRP |
| Quantité | 96 Tests |
| État réglementaire | RUO |
| Volume d’échantillon | 50 µL |
| Conditions de stockage | -20°C |
| Cible | Chemical |
| Heure du test | 1 hr 20 min |
| Durée totale du dosage | 2 hr 30 min |
