D
David I. Thurnham
Researcher at Ulster University
Publications - 114
Citations - 7432
David I. Thurnham is an academic researcher from Ulster University. The author has contributed to research in topics: Vitamin & Lutein. The author has an hindex of 42, co-authored 111 publications receiving 6893 citations.
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Journal ArticleDOI
Validation of dietary assessment methods in the UK arm of EPIC using weighed records, and 24-hour urinary nitrogen and potassium and serum vitamin C and carotenoids as biomarkers.
Sheila Bingham,Caroline Gill,Ailsa A Welch,Aedin Cassidy,Shirley A. Runswick,Suzy Oakes,Robert Lubin,David I. Thurnham,Timothy J. Key,Lynn Roe,Kay-Tee Khaw,Nicholas E. Day +11 more
TL;DR: Three methods (the 7-day diary, an improved FFQ, and the 24-hour recall) are used to assess diet and limited biomarker information amongst 200 UK EPIC participants supported the findings of the validation study.
Journal ArticleDOI
Adjusting plasma ferritin concentrations to remove the effects of subclinical inflammation in the assessment of iron deficiency: a meta-analysis
David I. Thurnham,Linda D McCabe,Sumanto Haldar,Frank T. Wieringa,Christine A. Northrop-Clewes,George P. McCabe +5 more
TL;DR: In this paper, the authors estimate the increase in ferritin in 32 studies of apparently healthy persons by using 2 acute phase proteins (APPs), C-reactive protein (CRP), and alpha(1)-acid glycoprotein (AGP), individually and in combination, and calculate factors to remove the influence of inflammation from ferritins concentrations.
Adjusting plasma ferritin concentrations to remove the effects of subclinical inflammation in the assessment of iron deficiency
David I. Thurnham,Linda D McCabe,Sumanto Haldar,Frank T. Wieringa,Christine A. Northrop-Clewes,George P. McCabe +5 more
TL;DR: Overall, inflammation increased ferritin by ap 30% and was associated with a 14% (CI: 7%, 21%) underestimation of ID, which is more common than CRP in young persons than in adults.
Journal ArticleDOI
Validation of weighed records and other methods of dietary assessment using the 24-h urine nitrogen technique and other biological markers
Sheila Bingham,Aedin Cassidy,Tim J Cole,Ailsa A Welch,Shirley A. Runswick,Alison E. Black,David I. Thurnham,Christopher J. Bates,Kay-Tee Khaw,Timothy J. Key,Nicholas E. Day +10 more
TL;DR: Despite problems of underreporting in overweight individuals in 20% of this sample, weighed records remained the most accurate method of dietary assessment, and only an estimated 7 d diary was able to approach this accuracy.
Journal ArticleDOI
β-Carotene Is an Important Vitamin A Source for Humans
Tilman Grune,Georg Lietz,Andreu Palou,A. Catharine Ross,Wilhelm Stahl,Guangweng Tang,David I. Thurnham,Shi An Yin,Hans Konrad Biesalski +8 more
TL;DR: Experts in the field of carotenoids met at the Hohenheim consensus conference in July 2009 to elucidate the current status of β-carotene research and to summarize the current knowledge with respect to the chemical properties, physiological function, and intake.