Several mature peptides encoded by kiss-1 gene including kisspeptin-54, -14, -13 and -10, all of their carboxyl terminus is a motif of arginine-phenylalanine-NH2 (RF-NH2), and each can activate GPR54 with equal biopotency
(Kotani et al.
The round table discussion addressed the following topics: * Valid biomarkers for vitamin E function in humans * Relevance of plasma levels in establishing biopotency
for different forms of vitamin E * Appropriate biopotency
ratio of natural vs.
The median in vivo biopotency
(with the 95% confidence intervals) measured by one laboratory was 15 400 (14 200-16 800) IU/mg, whereas in the other laboratory, it was 10 300 (8360-12 600) IU/mg.
Parker's group has proposed reexamining the 10-to-1 ratio of biopotency
for alpha-tocopherol versus gamma-tocopherol because the official numbers come almost entirely from research on animals.
Bioavailability and Biopotency
of Vitamin E in Humans: An Ongoing Controversy
With a motif of arginine phenylalanine-NH2 (RF-NH2) at the carboxyl terminus, each peptide can activate GPR54 with equal biopotency
(Kotani et al.
The data demonstrated relative biopotency
of oral insulin was 20% (median) in the first hour after administration, which is the most critical time period when the first-phase insulin response should be replicated in a Type 2 diabetic.
Poster #537 :: Release, Biopotency
, and Stability of Recombinant Human Platelet-Derived Growth Factor-BB (rhPDGF-BB) from Freeze-Dried Bone Allograft (FDBA) for use in Tissue Repair and Regeneration
Among them, d-[alpha]-tocopherol has the highest biopotency