Results 81 to 90 of about 62,546,396 (134)

Relative bioavailability of 25-hydroxyvitamin D3 compared to vitamin D3 for laying performance and egg quality in laying hens from 41 to 48 weeks of age

open access: yesJournal of Applied Poultry Research
Summary: Currently, the primary supplemental forms of vitamin D (VD) for laying hens’ diets are traditional Vitamin D3 (VD3) and its intermediate metabolite, 25-hydroxyvitamin D3 (25-OHD).
Dongdong Li   +9 more
doaj   +1 more source

A new chromatographic system for vitamin D3, and its metabolites: resolution of a new vitamin D3, metabolite

open access: yesJournal of Lipid Research, 1971
A simple yet powerful new chromatographic procedure for vitamin D3 and its metabolites is described. Liquid–gel partition chromatography on Sephadex LH-20 using a solvent of various percentages of CHCl3 in Skellysolve B (petroleum ether, bp 67–69°C ...
M.F. HOLICK, H.F. DeLUCA
doaj   +1 more source

Serum levels of 25-hydroxycholecalciferol and 1,25-dihydroxycholecalciferol in dogs with hypercalcaemia.

open access: yes, 2004
1,25-Dihydroxycholecalciferol (1,25-(OH)2-D3) and 25-hydroxycholecalciferol (25-OH-D3) were measured among dogs with hypercalcaemia (total serum calcium > 3.01 mmol/L) due to various causes.
Reusch CE, Gerber B, Hauser B
core   +1 more source

Influence of vitamin D in endocrine metabolic diseases

open access: yesSemina: Ciências Biológicas e da Saúde, 2015
The vitamin D deficiency has been linked to the development of several endocrine metabolic diseases such as metabolic syndrome, obesity, hypertension and Type 2 diabetes mellitus.
Rafael Algusto Rafaelli   +5 more
doaj   +1 more source

Serum 25-hydroxycholecalciferol levels in women using oral contraceptives

open access: yes, 1981
A study has been made of the serum 25-hydroxycholecalciferol (25-HCC) levels in six groups of women. Significant differences were found between the one pregnant group and the two reference groups as well as between the one pregnant group and two of the ...
Berg, H. van den   +2 more
core  

Effect of supplementation with two levels of 25-hydroxycholecalciferol on egg internal and external quality in commercial laying hens

open access: yes, 2016
Hy-Line Brown layer hens were housed in individual cages from 19 to 80 weeks of age to study the effects of dietary supplementation with two levels of 25-hydroxycholecalciferol (25(OH)D3) on egg internal and external quality, and the amount of cuticle ...
Al-Zahrani, Khalid, Roberts, Julie R
core  

P450scc (CYP11A1) can hydroxylate vitamin D3 to 20-hydroxycholecalciferol with following sequential metabolism to other hydroxyderivatives [10].

open access: yes, 2013
P450scc (CYP11A1) can hydroxylate vitamin D3 to 20-hydroxycholecalciferol with following sequential metabolism to other hydroxyderivatives [10].
Michal A. Zmijewski (251101)   +6 more
core   +1 more source

GROWTH PARAMETERS AND VITAMIN D STATUS IN CHILDREN WITH THALASSEMIA MAJOR IN UPPER EGYPT.

open access: yesMediterranean Journal of Hematology and Infectious Diseases, 2014
Aim: the aim of this study is to assess the growth parameters, vitamin D, calcium, and phosphorous status in children with thalassemia major receiving packed red cells transfusion with chelation therapy.
Fahim M. Fahim, Khaled Saad
doaj  

Influence of vitamin D deficiency and vitamin D receptor polymorphisms on tuberculosis among Gujarati Asians in west London: a case-control study

open access: yes, 2000
BACKGROUND Susceptibility to disease after infection by Mycobacterium tuberculosis is influenced by environmental and host genetic factors.
Ajit Lalvani (182766)   +17 more
core   +2 more sources

Differential Modulation of 25-hydroxycholecalciferol on Innate Immunity of Broiler Breeder Hens

open access: yes, 2023
Past immunological studies in broilers focused on juveniles within the rapid pre-slaughter growth period and may not reflect adult immune responses, particularly in breeders managed with chronic feed restriction (R).
Pao-Chia Chou   +7 more
core  

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