Akiko Nagata, Kazuto Iijima, Ryota Sakamoto, Yuka Mizumoto, Miho Iwaki, Masaki Takiwaki, Yoshikuni Kikutani, Seketsu Fukuzawa, Minami Odagi, Masayuki Tera, Kazuo Nagasawa
Blood levels of the vitamin D3 (D3 ) metabolites 25-hydroxyvitamin D3 (25(OH)D3 ), 24 R ,25-dihydroxyvitamin D3 , and 1α,25-dihydroxyvitamin D3 (1,25(OH)2 D3 ) are recognized indicators for the diagnosis of bone metabolism-related diseases, D3 deficiency-related diseases, and hypercalcemia, and are generally measured by liquid-chromatography tandem mass spectrometry (LC-MS/MS) using an isotope dilution method. However, other D3 metabolites, such as 20-hydroxyvitamin D3 and lactone D3 , also show interesting biological activities and stable isotope-labeled derivatives are required for LC-MS/MS analysis of their concentrations in serum...
April 9, 2022: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry