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Bang CY, Choung SY., 2014. Enzogenol improves diabetes-related metabolic change in C57BL/KsJ-db/db mice, a model of type 2 diabetes mellitus. J Pharm Pharmacol. 66(6):875-85. (request pdf)

Chayasirisobhon, S., 2006. Use of a pine bark extract and antioxidant vitamin combination product as therapy for migraine in patients refractory to pharmacologic medication. Headache 46: 788-793. (request pdf)

Chayasirisobhon, S., 2013. Efficacy of pinus radiata bark extract and vitamin c combination product as a prophylactic therapy for recalcitrant migraine and long-term results. Acta Neurologica Taiwanica 22, 13-21. (request pdf)

Frevel, M. A., Pipingas, A., Grigsby, W. J., Frampton, C. M., Gilchrist, N. L., 2012. Production, composition and toxicology studies of enzogenol® pinus radiata bark extract. Food and Chemical Toxicology 50, 4316-4324. (request pdf)

Frevel, M., 2019. ENZOGENOL Pine Bark Extract – From An Ancient Remedy To A Natural Neurotherapeutic. in Natural Medicines – Clinical Efficacy, Safety and Quality. Ghosh, D. and Mukherjee, P.K. CRC Press.

Kim, D. S.; Kim, M. S.; Kang, S. W.; Sung, H. Y.; Kang, Y. H., 2010. Pine Bark Extract Enzogenol Attenuated Tumor Necrosis Factor-alpha-Induced Endothelial Cell Adhesion and Monocyte Transmigration. J Agric Food Chem 58: 7088. (request pdf)

Pipingas, A.; Silberstein, R. B.; Vitetta, L.; Rooy, C. V.; Harris, E. V.; Young, J. M., et al., 2008. Improved cognitive performance after dietary supplementation with a Pinus radiata bark extract Formulation. Phytotherapy Research 22:9 p1168-1174. (request pdf)

Senthilmohan, S. T.; Zhang, J.; Stanley, R. A., 2003. Effects of flavonoid extract Enzogenol® with vitamin C on protein oxidation and DNA damage in older human subjects. Nutrition Research 23: 1199-1210. (request pdf)

Shand, B.; Strey, C.; Scott, R.; Morrison, Z.; Gieseg, S. 2003. Pilot study on the clinical effects of dietary supplementation with Enzogenol, a flavonoid extract of pine bark and vitamin C. Phytother Res 17: 490-494. (request pdf)

Theodom, A., Mahon, S., Barker-Collo, S., McPherson, K., Rush, E., Vandal, A. C., Feigin, V. L., 2013. Enzogenol for cognitive functioning in traumatic brain injury: A pilot placebo-controlled rct. European Journal of Neurology 20: 1135-44. (request pdf)

Walter A, Finelli K, Bai X, Arnett P, Bream T, Seidenberg P, Lynch S, Johnson B, Slobounov S., 2017. Effect of Enzogenol® Supplementation on Cognitive, Executive, and Vestibular/Balance Functioning in Chronic Phase of Concussion. Developmental Neuropsychology 42: 93-103. (request pdf)

Wood, J. E.;Senthilmohan, S. T.;Peskin, A. V., 2002. Antioxidant activity of procyanidin-containing plant extracts at different pHs. Food Chemistry 77: 155-161. (request pdf)

Young, J. M.;Shand, B. I.;Mcgregor, P. M.;Scott, R. S.;Frampton, C. M., 2006. Comparative effects of enzogenol and vitamin C supplementation versus vitamin C alone on endothelial function and biochemical markers of oxidative stress and inflammation in chronic smokers. Free Radic Res 40: 85-94. (request pdf)