Results 41 to 50 of about 1,048,498 (312)

Vitamin A supplementation coverage and associated factors for children aged 6 to 59 months in integrated and campaign-based delivery systems in four sub-Saharan African countries

open access: yesBMC Public Health
Background Vitamin A deficiency (VAD) is a leading contributor to the poor health and nutrition of young children in sub-Saharan Africa. Funding constraints are compelling many countries to shift from longstanding campaigns to integrating vitamin A ...
Amynah Janmohamed   +8 more
doaj   +1 more source

Implications of standardization of serum 25-hydroxyvitamin D data for the evaluation of vitamin D status in Germany, including a temporal analysis

open access: yesBMC Public Health, 2018
Background Comparability of 25-hydroxyvitamin D (25(OH)D) measurements is hampered by method-related differences in measurement values. International standardization of laboratory assays has been suggested to solve this problem.
Martina Rabenberg   +10 more
doaj   +1 more source

Prevalence and risk factors for vitamin C deficiency in North and South India: A two centre population based study in people aged 60 years and over [PDF]

open access: yes, 2011
BackgroundStudies from the UK and North America have reported vitamin C deficiency in around 1 in 5 men and 1 in 9 women in low income groups. There are few data on vitamin C deficiency in resource poor countries.ObjectivesTo investigate the prevalence ...
K. Gupta Sanjeev   +53 more
core   +2 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Role of micronutrients in the modulation of immune system and platelet activating factor in patients with COVID-19; a narrative review

open access: yesFrontiers in Nutrition, 2023
BackgroundDietary micronutrients may play important roles in the improvement of the immune responses against SARS-CoV-2. This study aimed to assess the effect of micronutrients on platelet activating factor (PAF) and immunity with a special focus on the ...
Saeid Doaei, Afrouz Mardi, Maryam Zare
doaj   +1 more source

A metabolomic investigation of the effects of vitamin E supplementation in humans [PDF]

open access: yes, 2012
Background Vitamin E is a nutrient with both antioxidant and non-antioxidant activities and has been shown to modulate the function of a number of cell types in vitro and in human studies.
John K Lodge   +5 more
core   +3 more sources

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

Hospital admissions for vitamin D related conditions and subsequent immune-mediated disease: record-linkage studies. [PDF]

open access: yes, 2013
BACKGROUND: Previous studies have suggested that there may be an association between vitamin D deficiency and the risk of developing immune-mediated diseases.
Giulio Disanto   +9 more
core   +2 more sources

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Vitamin D supplementation as an adjuvant therapy for patients with T2DM : an 18-month prospective interventional study [PDF]

open access: yes, 2012
Background Vitamin D deficiency has been associated with impaired human insulin action, suggesting a role in the pathogenesis of diabetes mellitus type 2 (T2DM).
Al-Othman, Abdulaziz   +29 more
core   +1 more source

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