Medicine and Health Sciences Commons^™

Dashing Away Hypertension: Evaluating The Efficacy Of The Dietary Approaches To Stop Hypertension Diet In Controlling High Blood Pressure, Preeya Shah Phd, Kyle D. Maxwell, Joseph I. Shapiro Md

Biochemistry and Microbiology

The dietary approaches to stop hypertension (DASH) diet has been developed and popularized as a non-pharmaceutical intervention for high blood pressure reduction since 1995. However, to date, a comprehensive description of the biochemical rationale behind the diet’s principal guidelines has yet to be compiled. With rising interest for healthy and reliable life-style modifications to combat cardiovascular disease, this review aims to compile the most recent and relevant studies on this topic and make an informed assessment as to the efficacy of and underlying mechanisms operant in the DASH diet. Specifically, the merits of lowering dietary intake of sodium and saturated …

Pnaktide Inhibits Na/K-Atpase Reactive Oxygen Species Amplification And Attenuates Adipogenesis, Komal Sodhi, Kyle Maxwell, Yanling Yan, Jiang Liu, Muhammad Chaudhry, Morgan Getty, Zijian Xie, Nader G. Abraham, Joseph I. Shapiro Md

Biochemistry and Microbiology

Obesity has become a worldwide epidemic and is a major risk factor for metabolic syndrome. Oxidative stress is known to play a role in the generation and maintenance of an obesity phenotype in both isolated adipocytes and intact animals. Because we had identified that the Na/K-ATPase can amplify oxidant signaling, we speculated that a peptide designed to inhibit this pathway, pNaKtide, might ameliorate an obesity phenotype. To test this hypothesis, we first performed studies in isolated murine preadipocytes (3T3L1 cells) and found that pNaKtide attenuated oxidant stress and lipid accumulation in a dose-dependent manner. Complementary experiments in C57Bl6 mice fed …

Fructose Mediated Non-Alcoholic Fatty Liver Is Attenuated By Ho-1-Sirt1 Module In Murine Hepatocytes And Mice Fed A High Fructose Diet, Komal Sodhi, Nitin Puri, Gaia Favero, Sarah Stevens, Charles Meadows, Nader G. Abraham, Rita Rezzani, Hayden A. Ansinelli, Edward Lebovics, Joseph I. Shapiro

Biochemistry and Microbiology

Background

Oxidative stress underlies the etiopathogenesis of nonalcoholic fatty liver disease (NAFLD), obesity and cardiovascular disease (CVD). Heme Oxygenase-1 (HO-1) is a potent endogenous antioxidant gene that plays a key role in decreasing oxidative stress. Sirtuin1 (SIRT1) belongs to the family of NAD-dependent de-acyetylases and is modulated by cellular redox.

Hypothesis

We hypothesize that fructose-induced obesity creates an inflammatory and oxidative environment conducive to the development of NAFLD and metabolic syndrome. The aim of this study is to determine whether HO-1 acts through SIRT1 to form a functional module within hepatocytes to attenuate steatohepatitis, hepatic fibrosis and cardiovascular dysfunction.

Methods …