Results 31 to 40 of about 479,304 (279)

Effect of vitamin D3 derivatives on cholesterol synthesis and HMG-CoA reductase activity in cultured cells.

open access: yesJournal of Lipid Research, 1989
Treatment of logarithmically growing rat intestinal epithelial cells (IEC-6) in culture with vitamin D3 (cholecalciferol), 25-hydroxy vitamin D3 (25-hydroxy cholecalciferol), 1,25-dihydroxy vitamin D3 (1,25-dihydroxycholecalciferol), and 24,25 dihydroxy ...
A K Gupta, R C Sexton, H Rudney
doaj   +1 more source

Dietary supplementation of 25-hydroxycholecalciferol and its impact on performance, intestinal morphology, and vitamin D status in broilers subjected to coccidiosis vaccine

open access: yesJournal of Applied Poultry Research, 2023
SUMMARY: The objective of this study was to compare the effect of dietary vitamin D3 and 25-OH-D3 metabolite on performance, intestinal integrity, and vitamin-D status of broilers administered a 2X-dose coccidiosis vaccine.
J.C. Suarez   +6 more
doaj   +1 more source

Should we be giving enhanced vitamin D intakes to all? [PDF]

open access: yes, 2011
It is widely established that vitamin D is critical for bone health. There is also an increasing body of evidence from observational studies that low levels of vitamin D are associated with a range of other disorders, including cancer and cardiovascular ...
BJ Boucher   +3 more
core   +1 more source

Cobalt‐Catalyzed [2σ+2π] Cycloaddition via Site‐Selective Capture of Bicyclobutane Diradical

open access: yesAngewandte Chemie, EarlyView.
We report a Co(II)‐catalyzed strategy that combines thermal activation of bicyclo[1.1.0]butane (BCBs) with site‐selective radical capture to furnish head‐to‐head fused bicyclo[2.1.1]hexanes via [2σ+2π] cycloaddition with indoles. Detailed mechanistic studies (31P NMR, EPR, CV, and DFT) support the catalytic pathway, while phosphine‐oxide trapping and X‐
Tanmayee Nanda   +8 more
wiley   +2 more sources

Long-term follow-up for mortality and cancer in a randomized placebo-controlled trial of vitamin D3 and/or calcium (RECORD Trial) [PDF]

open access: yes, 2012
Context: Vitamin D or calcium supplementation may have effects on vascular disease and cancer. Objective: Our objective was to investigate whether vitamin D or calcium supplementation affects mortality, vascular disease, and cancer in older people ...
McDonald, AM   +54 more
core   +1 more source

Vitamin D Status of HIV-Infected Women and its Association with HIV Disease Progression, Anemia, and Mortality. [PDF]

open access: yes, 2010
Vitamin D has a potential role in slowing HIV disease progression and preventing mortality based on its extensive involvement in the immune system; however, this relationship has not been examined in large studies or in resource-limited settings. Vitamin
Mugusi, Ferdinand M   +37 more
core   +2 more sources

The Association between Vitamin D Receptor Expression and Prolonged Overall Survival in Breast Cancer. [PDF]

open access: yes, 2011
Summary In this study, we analyzed vitamin D receptor (VDR) expression and survival in a breast cancer patient cohort of 82 breast cancer patients. Immunohistochemical analysis was possible in 91.5% of the patients (75/82). Staining was evaluated using
Lenhard, Miriam   +17 more
core   +1 more source

Vitamin D and endothelial function in chronic kidney disease [PDF]

open access: yes, 2014
PhDVitamin D deficiency in patients with chronic kidney disease, measured by reduced serum concentrations of 25 hydroxy vitamin D, is highly prevalent and associated with both endothelial dysfunction and an increased risk of cardiovascular disease ...
Dreyer, Gavin
core   +4 more sources

Effect of vitamin D supplementation on blood pressure:a systematic review and meta-analysis incorporating individual patient data [PDF]

open access: yes, 2015
Importance Low levels of vitamin D are associated with elevated blood pressure (BP) and future cardiovascular events. Whether vitamin D supplementation reduces BP and which patient characteristics predict a response remain unclear.Objective To ...
Gepner, Adam D.   +31 more
core   +1 more source

HPLC-UV Method Development and Validation for Vitamin D3 (Cholecalciferol) Quantitation in Drugs and Dietary Supplements

open access: yesРазработка и регистрация лекарственных средств, 2021
ErratumIntroduction. An inadequate diet and living in the northern regions can lead to a lack of vitamin D3 and the development of diseases, including a decrease in immunity.
I. E. Shohin   +5 more
doaj   +1 more source

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