Results 41 to 50 of about 23,054,062 (290)

Vitamin A and Pregnancy: A Narrative Review

open access: yesNutrients, 2019
Vitamin A is a crucial micronutrient for pregnant women and their fetuses. In addition to being essential for morphological and functional development and for ocular integrity, vitamin A exerts systemic effects on several fetal organs and on the fetal ...
Sabina Bastos Maia   +6 more
semanticscholar   +1 more source

Vitamin C—Sources, Physiological Role, Kinetics, Deficiency, Use, Toxicity, and Determination

open access: yesNutrients, 2021
Vitamin C (L-ascorbic acid) has been known as an antioxidant for most people. However, its physiological role is much larger and encompasses very different processes ranging from facilitation of iron absorption through involvement in hormones and ...
M. Doseděl   +10 more
semanticscholar   +1 more source

Vitamin A Transport Mechanism of the Multitransmembrane Cell-Surface Receptor STRA6. [PDF]

open access: yes, 2015
Vitamin A has biological functions as diverse as sensing light for vision, regulating stem cell differentiation, maintaining epithelial integrity, promoting immune competency, regulating learning and memory, and acting as a key developmental morphogen ...
Kassai, Miki   +4 more
core   +2 more sources

Retinoic acid attenuates oxidative injury in bovine mammary epithelial cells induced by hydrogen peroxide

open access: yesCzech Journal of Animal Science, 2017
The objective of this study was to explore how retinoic acid (RA) attenuates oxidative injury induced by hydrogen peroxide (H2O2) in bovine mammary epithelial cells (BMEC).
Lu Jin   +5 more
doaj   +1 more source

Vitamin D Supplements and Prevention of Cancer and Cardiovascular Disease

open access: yesNew England Journal of Medicine, 2019
BACKGROUND It is unclear whether supplementation with vitamin D reduces the risk of cancer or cardiovascular disease, and data from randomized trials are limited.
J. Manson   +15 more
semanticscholar   +1 more source

The health effects of vitamin D supplementation: evidence from human studies

open access: yesNature Reviews Endocrinology, 2021
Vitamin D supplementation can prevent and cure nutritional rickets in infants and children. Preclinical and observational data suggest that the vitamin D endocrine system has a wide spectrum of skeletal and extra-skeletal activities.
R. Bouillon   +5 more
semanticscholar   +1 more source

DO IT Trial: vitamin D Outcomes and Interventions in Toddlers - a TARGet Kids! randomized controlled trial. [PDF]

open access: yes, 2014
BackgroundVitamin D levels are alarmingly low (<75 nmol/L) in 65-70% of North American children older than 1 year. An increased risk of viral upper respiratory tract infections (URTI), asthma-related hospitalizations and use of anti-inflammatory ...
Birken, Catherine S   +10 more
core   +3 more sources

Dietary diversity and associated factors among infants and young children in three West African countries

open access: yesFrontiers in Public Health
Providing children healthy diversified diets is important for their optimal growth and development. The high prevalence of under-nourishment during the critical early life period is of serious concern in West Africa.
Amynah Janmohamed   +9 more
doaj   +1 more source

Vitamin A and vitamin D regulate the microbial complexity, barrier function, and the mucosal immune responses to ensure intestinal homeostasis

open access: yesCritical reviews in biochemistry and molecular biology, 2019
Diet is an important regulator of the gastrointestinal microbiota. Vitamin A and vitamin D deficiencies result in less diverse, dysbiotic microbial communities and increased susceptibility to infection or injury of the gastrointestinal tract. The vitamin
M. Cantorna   +2 more
semanticscholar   +1 more source

The Effects of Vitamin D on Immune System and Inflammatory Diseases

open access: yesBiomolecules, 2021
Immune cells, including dendritic cells, macrophages, and T and B cells, express the vitamin D receptor and 1α-hydroxylase. In vitro studies have shown that 1,25-dihydroxyvitamin D, the active form of vitamin D, has an anti-inflammatory effect.
Tomoka Ao, J. Kikuta, M. Ishii
semanticscholar   +1 more source

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