Placenta-specific methylation of the vitamin D 24-hydroxylase gene: implications for feedback autoregulation of active vitamin D levels at the fetomaternal interface [PDF]
, 2009 Plasma concentrations of biologically active vitamin D (1,25- (OH)2D) are tightly controlled via feedback regulation of renal 1-hydroxylase (CYP27B1; positive) and 24-hydroxylase (CYP24A1; catabolic) enzymes.
Albertson +101 more
core +3 more sources
Vitamin D. a dynamic molecule. how relevant might the dynamism for a vitamin be [PDF]
, 2015 Cholecalciferol, the precursor of Vitamin D3, is a very old, highly conserved, molecule. Its presence is evident in non-mineralized 750 million-year-old living species, such as plankton.
Mazzaferro, Sandro, Pasquali, Marzia
core +2 more sources
Determination of the urinary aglycone metabolites of vitamin K by HPLC with redox-mode electrochemical detection [PDF]
, 2005 We describe a method for the determination of the two major urinary metabolites of vitamin K as the methyl esters of their agyclone structures, 2-methyl-3-(3-3-carboxymethylpropyl)-1,4-naphthoquinone (5C-side-chain metabolite) and 2-methyl-3-(5-carboxy-3-
Edwards, C +5 more
core +1 more source
Serum 25-Hydroxyvitamin D and Intact Parathyroid Hormone Influence Muscle Outcomes in Children and Adolescents [PDF]
, 2018 Increases in 25-hydroxyvitamin D concentrations are shown to improve strength in adults; however, data in pediatric populations are scant and equivocal. In this ancillary study of a larger-scale, multi-sited, double-blind, randomized, placebo-controlled ...
Addison +55 more
core +1 more source
Alternatives for the substitution of synthetic vitamin B2 or vitamin B2 produced from GMOs [PDF]
, 2011 Today in conventional food and feed production added vitamin B2 is produced almost exclusively from a GMO,1 namely the genetically modified Bacillus subtilis.
Früh, Barbara +2 more
core
Adiposity, Cardiometabolic Risk, and Vitamin D Status: The Framingham Heart Study [PDF]
, 2009 OBJECTIVE: Because vitamin D deficiency is associated with a variety of chronic diseases, understanding the characteristics that promote vitamin D deficiency in otherwise healthy adults could have important clinical implications.
Booth, Sarah L. +13 more
core +3 more sources
TISSUE CHANGES FOLLOWING DEPRIVATION OF FAT-SOLUBLE A VITAMIN [PDF]
, 1925 S. B. Wolbach, Percy R. Howe
openalex +1 more source
THE COMPARATIVE ABSORPTION OF VITAMIN A FROM A WATER-MISCIBLE AND AN OILY PREPARATION BY NORMAL HUMAN ADULTS AND PATIENTS WITH STEATORRHEA 1 [PDF]
, 1950 Ben C. Barnes +2 more
openalex +1 more source
A vitamin K prophylaxis survey among breastfeeding mothers [PDF]
, 2014 A survey was distributed among new breastfeeding mothers in northern England to gain insight into their experiences with different forms of neonatal vitamin K prophylaxis.
Haining, Shona +4 more
core +1 more source