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vitamin

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Book Chapter
Series: World Review of Nutrition and Dietetics
Volume: 115
Published: 24 May 2016
10.1159/000442076
EISBN: 978-3-318-05685-3
... Abstract Vitamin A is essential for many physiological processes and is particularly crucial during early life, when vitamin A deficiency increases mortality through elevated rates of infection. This deadly aspect of vitamin A deficiency masks other effects that, while not lethal, may...
Book Chapter
Series: Developments in Ophthalmology
Volume: 38
Published: 21 December 2004
10.1159/000082767
EISBN: 978-3-318-01158-6
... scavengers or quenchers of activated states, comprise a vast number ofclasses of organic molecules including most prominently the phenolics. In this report, mechanismsof protection from oxidative damage by the antioxidants vitamin C and E andflavonoids, as present in most plant extracts used as natural drugs...
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Book Chapter
Series: Current Problems in Dermatology
Volume: 55
Published: 29 November 2021
10.1159/000517640
EISBN: 978-3-318-06608-1
... Abstract Vitamin D is generally accepted in its importance on the regulation of calcium homeostasis and bone metabolism. Moreover, further health effects due to vitamin D are under discussion. In its effect, vitamin D is more like a hormone. In the classic view, a vitamin is an essential...
Book Chapter
Series: World Review of Nutrition and Dietetics
Volume: 122
Published: 03 September 2021
10.1159/000514742
EISBN: 978-3-318-06647-0
...Key Messages Calcium, magnesium, and phosphorus are prominently involved in skeletal development, but all three also play critical roles in cellular function especially in metabolism. Vitamin D is critical for infant bone mineralization but the range of vitamin D levels that supports...
Book Chapter
Series: World Review of Nutrition and Dietetics
Volume: 122
Published: 03 September 2021
10.1159/000514771
EISBN: 978-3-318-06647-0
...Key Messages There is no high-quality evidence to base dietary recommendations for vitamins for preterm infants. Current dietary recommendations for vitamins are often inflated to follow the “concept of prudence.” A multimodal approach, including at least dietary intake assessment...
Book Chapter
Series: Aesthetic Dermatology
Volume: 5
Published: 09 February 2021
10.1159/000491843
EISBN: 978-3-318-06690-6
... are a class of lipophilic compounds which include retinol (vitamin A) and its natural and synthetic derivatives. Vitamin A is an essential nutrient required for a diverse array of biologic functions including vision, immune regulation, reproduction, embryonic development, and epithelium proliferation...
Book Chapter
Series: Aesthetic Dermatology
Volume: 5
Published: 09 February 2021
10.1159/000491844
EISBN: 978-3-318-06690-6
... include vitamin C, vitamin E, polyphenols, and flavonoids. Most are harvested and extracted from botanicals (e.g., green tea, red grapes, dark red berries, milk thistle, etc.) for use in both oral and topical preparations. Combinations of multiple AOX are most common in cosmeceuticals, as several AOX have...