Linus Pauling Institute

Blumberg JB, Frei B, Fulgoni VL, Weaver CM, Zeisel SH.  2017.  Contribution of Dietary Supplements to Nutritional Adequacy by Socioeconomic Subgroups in Adults of the United States.. Nutrients. 10(1)

Yilmazer-Musa M, Griffith AM, Michels AJ, Schneider E, Frei B.  2012.  Grape seed and tea extracts and catechin 3-gallates are potent inhibitors of α-amylase and α-glucosidase activity.. J Agric Food Chem. 60(36):8924-9.

Kerr DCR, Zava DT, Piper WT, Saturn SR, Frei B, Gombart AF.  2015.  Associations between vitamin D levels and depressive symptoms in healthy young adult women.. Psychiatry Res. 227(1):46-51.

Michels AJ, Hagen TM, Frei B.  2013.  Human genetic variation influences vitamin C homeostasis by altering vitamin C transport and antioxidant enzyme function.. Annu Rev Nutr. 33:45-70.

Frei B, Birlouez-Aragon I, Lykkesfeldt J.  2012.  Authors' perspective: What is the optimum intake of vitamin C in humans? Crit Rev Food Sci Nutr. 52(9):815-29.

Zhang WJian, Frei B.  2003.  Intracellular metal ion chelators inhibit TNFalpha-induced SP-1 activation and adhesion molecule expression in human aortic endothelial cells.. Free Radic Biol Med. 34(6):674-82.

Sowell J, Frei B, Stevens JF.  2004.  Vitamin C conjugates of genotoxic lipid peroxidation products: structural characterization and detection in human plasma.. Proc Natl Acad Sci U S A. 101(52):17964-9.

Zhang WJian, Stocker R, McCall MR, Forte TM, Frei B.  2002.  Lack of inhibitory effect of HDL on TNFalpha-induced adhesion molecule expression in human aortic endothelial cells.. Atherosclerosis. 165(2):241-9.

Lotito SB, Frei B.  2006.  Consumption of flavonoid-rich foods and increased plasma antioxidant capacity in humans: cause, consequence, or epiphenomenon? Free Radic Biol Med. 41(12):1727-46.

Li C, Zhang W-J, Choi J, Frei B.  2016.  Quercetin affects glutathione levels and redox ratio in human aortic endothelial cells not through oxidation but formation and cellular export of quercetin-glutathione conjugates and upregulation of glutamate-cysteine ligase.. Redox Biol. 9:220-228.

Lotito SB, Frei B.  2004.  Relevance of apple polyphenols as antioxidants in human plasma: contrasting in vitro and in vivo effects.. Free Radic Biol Med. 36(2):201-11.

Zhang W-J, Frei B.  2002.  Albumin selectively inhibits TNF alpha-induced expression of vascular cell adhesion molecule-1 in human aortic endothelial cells.. Cardiovasc Res. 55(4):820-9.

Blumberg JB, Frei B, Fulgoni VL, Weaver CM, Zeisel SH.  2017.  Contribution of Dietary Supplements to Nutritional Adequacy in Various Adult Age Groups.. Nutrients. 9(12)

Lotito SB, Zhang W-J, Yang CS, Crozier A, Frei B.  2011.  Metabolic conversion of dietary flavonoids alters their anti-inflammatory and antioxidant properties.. Free Radic Biol Med. 51(2):454-63.

Higdon JV, Frei B.  2003.  Tea catechins and polyphenols: health effects, metabolism, and antioxidant functions.. Crit Rev Food Sci Nutr. 43(1):89-143.

Mastaloudis A, Yu T-W, O'Donnell RP, Frei B, Dashwood RH, Traber MG.  2004.  Endurance exercise results in DNA damage as detected by the comet assay.. Free Radic Biol Med. 36(8):966-75.

Li C, Zhang W-J, Frei B.  2016.  Quercetin inhibits LPS-induced adhesion molecule expression and oxidant production in human aortic endothelial cells by p38-mediated Nrf2 activation and antioxidant enzyme induction.. Redox Biol. 9:104-113.

Visioli F, Smith A, Zhang W, Keaney JF, Hagen T, Frei B.  2002.  Lipoic acid and vitamin C potentiate nitric oxide synthesis in human aortic endothelial cells independently of cellular glutathione status.. Redox Rep. 7(4):223-7.

Zhang W-J, Wei H, Hagen T, Frei B.  2007.  Alpha-lipoic acid attenuates LPS-induced inflammatory responses by activating the phosphoinositide 3-kinase/Akt signaling pathway.. Proc Natl Acad Sci U S A. 104(10):4077-82.

Li L, Frei B.  2009.  Prolonged exposure to LPS increases iron, heme, and p22phox levels and NADPH oxidase activity in human aortic endothelial cells: inhibition by desferrioxamine.. Arterioscler Thromb Vasc Biol. 29(5):732-8.

Higdon JV, Frei B.  2006.  Coffee and health: a review of recent human research.. Crit Rev Food Sci Nutr. 46(2):101-23.

Lotito SB, Frei B.  2006.  Dietary flavonoids attenuate tumor necrosis factor alpha-induced adhesion molecule expression in human aortic endothelial cells. Structure-function relationships and activity after first pass metabolism.. J Biol Chem. 281(48):37102-10.

Michels AJ, Frei B.  2013.  Myths, artifacts, and fatal flaws: identifying limitations and opportunities in vitamin C research.. Nutrients. 5(12):5161-92.

Higdon JV, Frei B.  2005.  Is there a gender difference in the effect of antioxidants on cancer risk? Br J Nutr. 94(2):139-40.

Traber MG, Frei B, Beckman JS.  2008.  Vitamin E revisited: do new data validate benefits for chronic disease prevention? Curr Opin Lipidol. 19(1):30-8.