T
Tai C. Chen
Researcher at Boston University
Publications - 276
Citations - 24140
Tai C. Chen is an academic researcher from Boston University. The author has contributed to research in topics: Vitamin D and neurology & Vitamin. The author has an hindex of 70, co-authored 276 publications receiving 22671 citations. Previous affiliations of Tai C. Chen include Boston Medical Center & Agricultural Research Service.
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Journal ArticleDOI
Decreased bioavailability of vitamin D in obesity
TL;DR: Obese subjects had significantly lower basal 25-hydroxyvitamin D concentrations and higher parathyroid hormone concentrations than did age-matched control subjects and the incremental increase in vitamin D(3) was 57% lower in obese than in nonobese subjects.
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Vitamin D deficiency : a worldwide problem with health consequences
Michael F. Holick,Tai C. Chen +1 more
TL;DR: Vitamin D deficiency causes rickets in children and will precipitate and exacerbate osteopenia, osteoporosis, and fractures in adults, and foods that are fortified with vitamin D are often inadequate to satisfy either a child's or an adult's vitamin D requirement.
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Human serum 25-hydroxycholecalciferol response to extended oral dosing with cholecalciferol
TL;DR: Current recommended vitamin D inputs are inadequate to maintain serum 25-hydroxycholecalciferol concentration in the absence of substantial cutaneous production of vitamin D.
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Vitamin D2 Is as Effective as Vitamin D3 in Maintaining Circulating Concentrations of 25-Hydroxyvitamin D
Michael F. Holick,Rachael M. Biancuzzo,Tai C. Chen,Ellen K. Klein,Azzie Young,Douglass Bibuld,Richard E. Reitz,Wael A. Salameh,Allen Ameri,Andrew D. Tannenbaum +9 more
TL;DR: A 1000 IU dose of vitamin D2 daily was as effective as 1000 IU vitamin D3 in maintaining serum 25-hydroxyvitamin D levels and did not negatively influence serum 25+/-7.7 ng/ml, therefore, vitamin D 2 is equally as effective in maintaining 25-Hydroxyv vitamin D status.
Journal ArticleDOI
Vitamin D insufficiency among free-living healthy young adults.
TL;DR: This study sought to examine the prevalence of vitamin D insufficiency in a group of free-living healthy young adults, consisting of mostly health care professionals, in Boston, Massachusetts.