Frei, Balz

Ascorbate is an outstanding antioxidant in human blood plasma

Frei, B., England, L., & Ames, B. N. (1989) · Proceedings of the National Academy of Sciences

Antioxidant Activity and Oxidative StressVitamin C and Antioxidants Research

Cited by 1,870

Tea catechins and polyphenols: Health effects, metabolism, and antioxidant functions

Higdon, J. V., & Frei, B. (2003) · Critical Reviews in Food Science and Nutrition

Tea Polyphenols and EffectsPhytochemicals and Antioxidant Activities

Cited by 1,854

Coffee and Health: A Review of Recent Human Research

Higdon, J. V., & Frei, B. (2006) · Critical Reviews in Food Science and Nutrition

Coffee research and impactsAlcohol Consumption and Health Effects

Cited by 1,090

Toward a new recommended dietary allowance for vitamin C based on antioxidant and health effects in humans

Carr, A. C., & Frei, B. (1999) · The American Journal of Clinical Nutrition

Vitamin C and Antioxidants ResearchAntioxidant Activity and Oxidative Stress

Cited by 940

Ascorbic Acid Reverses Endothelial Vasomotor Dysfunction in Patients With Coronary Artery Disease

Levine, G. N., Frei, B., Koulouris, S. N., Gerhard, M. D., Keaney, J. F., & Vita, J. A. (1996) · Circulation

Cardiovascular Health and Disease PreventionNitric Oxide and Endothelin Effects

Cited by 582

A new proposed guidance system for beverage consumption in the United States

Popkin, B. M., Armstrong, L. E., Bray, G. M., Caballero, B., Frei, B., & Willett, W. C. (2006) · The American Journal of Clinical Nutrition

Nutritional Studies and DietObesity, Physical Activity, Diet

Cited by 431

Long-term ascorbic acid administration reverses endothelial vasomotor dysfunction in patients with coronary artery disease

Gokce, N., Keaney, J. F., Frei, B., Holbrook, M., Olesiak, M., Zachariah, B. J., Leeuwenburgh, C., Heinecke, J. W., & Vita, J. A. (1999) · Circulation

Cardiovascular Health and Disease PreventionNitric Oxide and Endothelin Effects

Cited by 387

Ascorbic acid oxidation product(s) protect human low density lipoprotein against atherogenic modification. Anti- rather than prooxidant activity of vitamin c in the presence of transition metal ions

Retsky, K. L., Freeman, M. W., & Frei, B. (1993) · Journal of Biological Chemistry

Antioxidant Activity and Oxidative StressVitamin C and Antioxidants Research

Cited by 271

Prevention of age-related spatial memory deficits in a transgenic mouse model of Alzheimer's disease by chronic Ginkgo biloba treatment

Stackman, R. W., Eckenstein, F., Frei, B., Kulhanek, D., Nowlin, J., & Quinn, J. F. (2003) · Experimental Neurology

Ginkgo biloba and Cashew ApplicationsAlzheimer's disease research and treatments

Cited by 230

Vitamin C Supplementation for Pregnant Smoking Women and Pulmonary Function in Their Newborn Infants: A Randomized Clinical Trial

McEvoy, C. T., Schilling, D., Clay, N., Jackson, K., Go, M. D., Spitale, P., Bunten, C., Leiva, M., Gonzales, D., Hollister-Smith, J., et al. (2014) · JAMA

Asthma and respiratory diseasesPrenatal Substance Exposure Effects

Cited by 217

The Role of Natural Antioxidants in Preserving the Biological Activity of Endothelium-Derived Nitric Oxide

Carr, A., & Frei, B. (2000) · Free Radical Biology and Medicine

Nitric Oxide and Endothelin EffectsAntioxidant Activity and Oxidative Stress

Cited by 190

Vitamin C prevents cigarette smoke-induced leukocyte aggregation and adhesion to endothelium in vivo.

Lehr, H. A., Frei, B., & Arfors, K. E. (1994) · Proceedings of the National Academy of Sciences

Cell Adhesion Molecules ResearchVitamin C and Antioxidants Research

Cited by 167

Effects of black tea consumption on plasma catechins and markers of oxidative stress and inflammation in patients with coronary artery disease

Widlansky, M. E., Duffy, S. J., Hamburg, N. M., Gokce, N., Warden, B. A., Wiseman, S., Keaney, J. F., Frei, B., & Vita, J. A. (2005) · Free Radical Biology and Medicine

Tea Polyphenols and EffectsPhytochemicals and Antioxidant Activities

Cited by 162

Human Genetic Variation Influences Vitamin C Homeostasis by Altering Vitamin C Transport and Antioxidant Enzyme Function

Michels, A. J., Hagen, T. M., & Frei, B. (2013) · Annual Review of Nutrition

Vitamin C and Antioxidants ResearchNutrition, Genetics, and Disease

Cited by 139

Ergothioneine Prevents Copper-Induced Oxidative Damage to DNA and Protein by Forming a Redox-Inactive Ergothioneine−Copper Complex

Zhu, B.-Z., Mao, L., Fan, R.-M., Zhu, J.-G., Zhang, Y.-N., Wang, J., Kalyanaraman, B., & Frei, B. (2011) · Chemical Research in Toxicology

Sulfur Compounds in BiologyFree Radicals and Antioxidants

Cited by 122

Myths, Artifacts, and Fatal Flaws: Identifying Limitations and Opportunities in Vitamin C Research

Michels, A., & Frei, B. (2013) · Nutrients

Vitamin C and Antioxidants ResearchAntioxidant Activity and Oxidative Stress

Cited by 111

Impact of Frequency of Multi-Vitamin/Multi-Mineral Supplement Intake on Nutritional Adequacy and Nutrient Deficiencies in U.S. Adults

Blumberg, J., Frei, B., Fulgoni, V., Weaver, C., & Zeisel, S. (2017) · Nutrients

Nutrition and Health StudiesNutritional Studies and Diet

Cited by 99

Iron Chelation Inhibits NF-κB–Mediated Adhesion Molecule Expression by Inhibiting p22 phox Protein Expression and NADPH Oxidase Activity

Li, L., & Frei, B. (2006) · Arteriosclerosis, Thrombosis, and Vascular Biology

Nitric Oxide and Endothelin EffectsNeutrophil, Myeloperoxidase and Oxidative Mechanisms

Cited by 49

Vitamin C fails to protect amino acids and lipids from oxidation during acute inflammation

Gaut, J. P., Belaaouaj, A., Byun, J., Roberts, L. J., Maeda, N., Frei, B., & Heinecke, J. W. (2006) · Free Radical Biology and Medicine

Vitamin C and Antioxidants ResearchAntioxidant Activity and Oxidative Stress

Cited by 48

A purified Feverfew extract protects from oxidative damage by inducing DNA repair in skin cells via a PI3-kinase-dependent Nrf2/ARE pathway

Rodriguez, K. J., Wong, H.-K., Oddos, T., Southall, M., Frei, B., & Kaur, S. (2013) · Journal of Dermatological Science

Genomics, phytochemicals, and oxidative stressSkin Protection and Aging

Cited by 34

A Randomized Controlled Trial of Long-Term (R)-α-Lipoic Acid Supplementation Promotes Weight Loss in Overweight or Obese Adults without Altering Baseline Elevated Plasma Triglyceride Concentrations

Bobe, G., Michels, A. J., Zhang, W.-J., Purnell, J. Q., Woffendin, C., Pereira, C., Vita, J. A., Thomas, N. O., Traber, M. G., Frei, B., et al. (2020) · The Journal of Nutrition

Biochemical Acid Research StudiesPharmacology and Obesity Treatment

Cited by 22