Diabetes is the fastest growing disease in the USA (mirroring increases in obesity rates) and is rising as a leading cause of death mostly from cardiovascular related pathologies. The current prevalence of diabetes is ~9% with a further ~30% as pre-diabetics. Estimated 2007 direct and indirect costs of diabetes in the USA are $174 billion. Compelling evidence has emerged implicating mitochondrial dysfunction in the pathophysiology of obesity, insulin resistance and type 2 diabetes. Insulin sensitizing agents used for the treatment of diabetes such as thiazoledinediones (TZDs) induce mitochondrial biogenesis and this may partly explain their therapeutic action. In spite of their therapeutic benefit they however, have the potential for serious side-effects. Flavonoids as TZDs have been reported to induce mitochondrial biogenesis favorably impacting cellular and organ bioenergetics. This class of natural compounds is in general, recognized as safe. However, their possible use as drugs for the treatment of pre-diabetes or diabetes has been poorly explored. Under this proposal, entitled """"""""Targeting cellular bioenergetics for the treatment of pre-diabetes and diabetes: A team approach"""""""", we will create a highly integrated, multidisciplinary research team specifically assembled to systematically explore the prospect of the cacao flavanol (-)-epicatechin (and novel synthetic derivatives) to favorably affect cellular/organ bioenergetics. We intend to gather preliminary data to dispel the common notion that flavanols act mainly as antioxidans and that """"""""the higher the dose, the greater the effect"""""""". Rather, we intend to generate evidence pertaining to their effect on specific cell receptors acting within specific dose-response profiles. During this initial seed period, we will fully assemble and integrate a unique and highly-experienced team consisting of basic scientists (molecular and organ physiologists) and translational experts to systematically examine the promise of epicatechin and novel derivatives as agents for the treatment of pre-diabetes and diabetes.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Resource-Related Research Projects (R24)
Project #
1R24DK092154-01
Application #
8150760
Study Section
Special Emphasis Panel (ZDK1-GRB-N (M3))
Program Officer
Pawlyk, Aaron
Project Start
2011-08-01
Project End
2013-07-31
Budget Start
2011-08-01
Budget End
2013-07-31
Support Year
1
Fiscal Year
2011
Total Cost
$459,413
Indirect Cost
Name
University of California San Diego
Department
Internal Medicine/Medicine
Type
Schools of Medicine
DUNS #
804355790
City
La Jolla
State
CA
Country
United States
Zip Code
92093
Ramírez-Sánchez, Israel; Rodríguez, Alonso; Moreno-Ulloa, Aldo et al. (2016) (-)-Epicatechin-induced recovery of mitochondria from simulated diabetes: Potential role of endothelial nitric oxide synthase. Diab Vasc Dis Res 13:201-10
Taub, Pam R; Ramirez-Sanchez, Israel; Patel, Minal et al. (2016) Beneficial effects of dark chocolate on exercise capacity in sedentary subjects: underlying mechanisms. A double blind, randomized, placebo controlled trial. Food Funct 7:3686-93
Moreno-Ulloa, Aldo; Nogueira, Leonardo; Rodriguez, Alonso et al. (2015) Recovery of Indicators of Mitochondrial Biogenesis, Oxidative Stress, and Aging With (-)-Epicatechin in Senile Mice. J Gerontol A Biol Sci Med Sci 70:1370-8
Barnett, Christopher F; Moreno-Ulloa, Aldo; Shiva, Sruti et al. (2015) Pharmacokinetic, partial pharmacodynamic and initial safety analysis of (-)-epicatechin in healthy volunteers. Food Funct 6:824-33
Moreno-Ulloa, Aldo; Mendez-Luna, David; Beltran-Partida, Ernesto et al. (2015) The effects of (-)-epicatechin on endothelial cells involve the G protein-coupled estrogen receptor (GPER). Pharmacol Res 100:309-20
DeCoux, Ashley; Lindsey, Merry L; Villarreal, Francisco et al. (2014) Myocardial matrix metalloproteinase-2: inside out and upside down. J Mol Cell Cardiol 77:64-72
Ortiz-Vilchis, Pilar; Yamazaki, Katrina Go; Rubio-Gayosso, Ivan et al. (2014) Co-administration of the flavanol (-)-epicatechin with doxycycline synergistically reduces infarct size in a model of ischemia reperfusion injury by inhibition of mitochondrial swelling. Eur J Pharmacol 744:76-82
Gutiérrez-Salmeán, Gabriela; Ortiz-Vilchis, Pilar; Vacaseydel, Claudia M et al. (2014) Acute effects of an oral supplement of (-)-epicatechin on postprandial fat and carbohydrate metabolism in normal and overweight subjects. Food Funct 5:521-7
Gutierrez-Salmean, Gabriela; Ciaraldi, Theodore P; Nogueira, Leonardo et al. (2014) Effects of (-)-epicatechin on molecular modulators of skeletal muscle growth and differentiation. J Nutr Biochem 25:91-4
Aguilar, Hugo; Fricovsky, Eduardo; Ihm, Sang et al. (2014) Role for high-glucose-induced protein O-GlcNAcylation in stimulating cardiac fibroblast collagen synthesis. Am J Physiol Cell Physiol 306:C794-804

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