Evidence is emerging that vitamin D—and possibly vitamins K and A—might help combat COVID-19. A new study from the University of Bristol published in the journal of the German Chemical Society Angewandte Chemie has shown ...
Biochemistry
Jan 29, 2021
1
2274
Human teeth hold vital information about Vitamin D deficiency, a serious but often hidden condition that can now be identified by a simple dental X-ray, McMaster anthropologists Lori D'Ortenzio and Megan Brickley have found.
Analytical Chemistry
Nov 7, 2017
0
356
The popular idea that Northern Europeans developed light skin to absorb more UV light so they could make more vitamin D – vital for healthy bones and immune function – is questioned by UC San Francisco researchers in ...
Evolution
Jun 30, 2014
17
0
New research from Portland State University finds vitamin D, or a lack thereof can trigger or suspend embryonic development in a species of fish. The study also provides evidence suggesting the vitamin is critical to the ...
Cell & Microbiology
Nov 19, 2018
0
125
In one of the first studies of its kind, Australian scientists have investigated the health and economic status of a group of migrant settlers to colonial South Australia from an examination of skeletal remains at the Anglican ...
Archaeology
Apr 7, 2022
0
241
Variations in skin color provide one of the best examples of evolution by natural selection acting on the human body and should be used to teach evolution in schools, according to a Penn State anthropologist.
Evolution
Feb 20, 2011
55
0
For the first time, a team from the Institut de Génétique et de Biologie Moléculaire et Cellulaire, France, has obtained a high-resolution, full 3D image of a small but vital molecule locked up within our cells: ...
Biochemistry
Jan 24, 2012
0
0
Researchers at McMaster University have found a rich new record of vitamin D deficiency, one that resides in the teeth of every person and remains viable for hundreds of years or more.
Archaeology
Jul 18, 2016
0
352
Popeye might want to consider switching to broccoli. British scientists recently unveiled a new breed of the vegetable that experts say packs a big nutritional punch.
Plants & Animals
Oct 26, 2011
3
0
A natural remedy that delays and reduces the severity of mastitis infection in dairy cattle is being investigated by scientists at the U.S. Department of Agriculture (USDA).
Plants & Animals
Jun 19, 2012
1
0
Vitamin D is a group of fat-soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol). The term vitamin D also refers to metabolites and other analogues of these substances. Vitamin D3 is produced in skin exposed to sunlight, specifically ultraviolet B radiation.
Vitamin D plays an important role in the maintenance of organ systems.
Vitamin D deficiency can result from inadequate intake coupled with inadequate sunlight exposure; disorders that limit its absorption; conditions that impair conversion of vitamin D into active metabolites, such as liver or kidney disorders; or, rarely, by a number of hereditary disorders. Deficiency results in impaired bone mineralization and leads to bone softening diseases rickets in children and osteomalacia in adults, and possibly contributes to osteoporosis. However, sunlight exposure, to avoid deficiency, carries other risks, including skin cancer; this risk is avoided with dietary absorption, either through diet or as a dietary supplement.
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