Techniques for measuring vitamin A activity from β-carotene : New Developments in Carotenoids ResearchGUANGWEN TANG.The American journal of clinical nutrition. 2012, Vol 96, Num 5, issn 0002-9165, S1185-S1188Article

Bioconversion of dietary provitamin A carotenoids to vitamin A in humansGUANGWEN TANG.The American journal of clinical nutrition. 2010, Vol 91, Num 5, issn 0002-9165, 1468S-1473SConference Paper

Differentiation between central and excentric cleavage of β-caroteneGUANGWEN TANG; KRINSKY, N. I.Methods in enzymology. 1993, Vol 214, pp 69-74, issn 0076-6879Article

Deuterium enrichment of retinol in humans determined by gas chromatography electron capture negative chemical ionization mass spectrometryGUANGWEN TANG; JIAN QIN; DOLNIKOWSKI, G. G et al.Journal of nutritional biochemistry. 1998, Vol 9, Num 7, pp 408-414, issn 0955-2863Article

Effects of mobile phase ratios on the separation of plant carotenoids by HPLC with a C30 columnLEI LI; JIAN QIN; YIN, Shi-An et al.Chromatographia (Wiesbaden). 2007, Vol 65, Num 1-2, pp 91-94, issn 0009-5893, 4 p.Article

Serum retinoic acid levels in patients with resected benign and malignant colonic neoplasias on β-carotene supplementationGUANGWEN TANG; SHIAU, A; RUSSELL, R. M et al.Nutrition and cancer. 1995, Vol 23, Num 3, pp 291-298, issn 0163-5581Article

Short-term (intestinal) and long-term (postintestinal) conversion of β-carotene to retinol in adults as assessed by a stable-isotope reference methodGUANGWEN TANG; JIAN QIN; DOLNIKOWSKI, Gregory G et al.The American journal of clinical nutrition. 2003, Vol 78, Num 2, pp 259-266, issn 0002-9165, 8 p.Article

Measurement of carotenoids, retinoids, and tocopherols in human lensesKYUNG-JIN YEUM; TAYLOR, A; GUANGWEN TANG et al.Investigative ophthalmology & visual science. 1995, Vol 36, Num 13, pp 2756-2761, issn 0146-0404Article

Retinoids and pulmonary hypertensionPRESTON, Ioana R; GUANGWEN TANG; TILAN, Jason U et al.Circulation (New York, N.Y.). 2005, Vol 111, Num 6, pp 782-790, issn 0009-7322, 9 p.Article

Supplementing ferrets with canthaxanthin affects the tissue distributions of canthaxanthin, other carotenoids, vitamin A and vitamin EGUANGWEN TANG; BLANCO, M. C; FOX, J. G et al.The Journal of nutrition. 1995, Vol 125, Num 7, pp 1945-1951, issn 0022-3166Article

Spinach or carrots can supply significant amounts of vitamin A as assessed by feeding with intrinsically deuterated vegetablesGUANGWEN TANG; JIAN QIN; DOLNIKOWSKI, Gregory G et al.The American journal of clinical nutrition. 2005, Vol 82, Num 4, pp 821-828, issn 0002-9165, 8 p.Article

Bioavailability of lutein in humans from intrinsically labeled vegetables determined by LC-APCI-MSLIENAU, Annette; GLASER, Tobias; GUANGWEN TANG et al.Journal of nutritional biochemistry. 2003, Vol 14, Num 11, pp 663-670, issn 0955-2863, 8 p.Article

Characterization of β-apo-13-carotenone and β-apo-14'-carotenal as enzymatic products of the excentric cleavage of β-caroteneGUANGWEN TANG; XIANG-DONG WANG; RUSSELL, R. M et al.Biochemistry (Easton). 1991, Vol 30, Num 41, pp 9829-9834, issn 0006-2960Article

Golden Rice is an effective source of vitamin AGUANGWEN TANG; JIAN QIN; DOLNIKOWSKI, Gregory G et al.The American journal of clinical nutrition. 2009, Vol 89, Num 6, pp 1776-1783, issn 0002-9165, 8 p.Article

β-carotene-vitamin A equivalence in Chinese adults assessed by an isotope dilution techniqueZHIXU WANG; SHIAN YIN; XIANFENG ZHAO et al.British journal of nutrition. 2004, Vol 91, Num 1, pp 121-131, issn 0007-1145, 11 p.Article

Use of a short-term isotope-dilution method for determining the vitamin A status of childrenGUANGWEN TANG; JIAN QIN; HAO, Lan-Ying et al.The American journal of clinical nutrition. 2002, Vol 76, Num 2, pp 413-418, issn 0002-9165Article

Serum carotenoids and retinoids in ferrets fed canthaxanthinGUANGWEN TANG; DOLNIKOWSKI, G. G; BLANCO, M. C et al.Journal of nutritional biochemistry. 1993, Vol 4, Num 1, pp 58-63, issn 0955-2863Article

Determination of Carotenoids in Yellow Maize, the Effects of Saponification and Food PreparationsMUZHINGI, Tawanda; YEUM, Kyung-Jin; RUSSELL, Robert M et al.International journal for vitamin and nutrition research. 2008, Vol 78, Num 3, pp 112-120, issn 0300-9831, 9 p.Article

Intestinal perfusion of β-carotene in the ferret raises retinoic acid level in portal bloodXIANG-DONG WANG; RUSSELL, R. M; MARINI, R. P et al.Biochimica et biophysica acta, L. Lipids and lipid metabolism. 1993, Vol 1167, Num 2, pp 159-164, issn 0005-2760Article

Yellow maize with high β-carotene is an effective source of vitamin A in healthy Zimbabwean menMUZHINGI, Tawanda; GADAGA, Tendekayi H; SIWELA, Andrew H et al.The American journal of clinical nutrition. 2011, Vol 94, Num 2, pp 510-519, issn 0002-9165, 10 p.Article

Assessment of total body stores of vitamin A in guatemalan elderly by the deuterated-retinol-dilution methodRIBAYA-MERCADO, J. D; MAZARIEGOS, M; GUANGWEN TANG et al.The American journal of clinical nutrition. 1999, Vol 69, Num 2, pp 278-284, issn 0002-9165Article

Kinetic Analysis Shows that Vitamin A Disposal Rate in Humans Is Positively Correlated with Vitamin A StoresCIFELLI, Christopher J; GREEN, Joanne B; ZHIXU WANG et al.The Journal of nutrition. 2008, Vol 138, Num 5, pp 971-977, issn 0022-3166, 7 p.Article

Enzymatic and oxidative metabolites of lycopeneDOS ANJOS FERREIRA, Ana Lucia; YEUM, Kyung-Jin; RUSSELL, Robert M et al.Journal of nutritional biochemistry. 2003, Vol 14, Num 9, pp 531-540, issn 0955-2863, 10 p.Article

β-Carotene in Golden Rice is as good as β-carotene in oil at providing vitamin A to childrenGUANGWEN TANG; YUMING HU; YIN, Shi-An et al.The American journal of clinical nutrition. 2012, Vol 96, Num 3, pp 658-664, issn 0002-9165, 7 p.Article

Determination of 9-cis β-carotene and ζ-carotene in biological samplesJIAN QIN; YEUM, Kyung-Jin; JOHNSON, Elizabeth J et al.Journal of nutritional biochemistry. 2008, Vol 19, Num 9, pp 612-618, issn 0955-2863, 7 p.Article