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Pharmacokinetics and Pharmacodynamics of Fructose

2014-08-27 03:31:16 | BioPortfolio

Summary

The purpose of this study is to determine whether sucrose vs high fructose corn syrup from a soft drink results in differences in various metabolic byproducts such as fructose, glucose, serum uric acid, triglyceride and lactate.

Description

Fructose consumption has risen sharply during the past several decades. Since its introduction to the United States in 1967, high fructose corn syrup (HFCS) has overtaken sucrose as the main sweetener in manufactured foods and beverages, and thus, is responsible for the approximately 30% increase in fructose in our diet. Numerous studies have shown that excessive fructose consumption can cause a variety of harmful metabolic effects, suggesting that fructose may partially be responsible for the current epidemic in obesity, hypertension, metabolic syndrome, and diabetes.

This preliminary study will investigate the pharmacokinetics and pharmacodynamics of fructose in a broad population. Specifically, the goal of our research are to compare the impact of the two main sources of dietary fructose, sucrose versus HFCS, on fructose bioavailability and acute metabolic changes by measuring response phenotypes, such as serum uric acid, lactate, and triglyceride levels.

Study Design

Time Perspective: Prospective

Conditions

Healthy

Intervention

Dr Pepper sweetened with sucrose or high fructose corn syrup

Location

University of Florida, Department of Pharmacy Practice, Center for Pharmacogenomics
Gainesville
Florida
United States
32610

Status

Active, not recruiting

Source

University of Florida

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:31:16-0400

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PubMed Articles [12561 Associated PubMed Articles listed on BioPortfolio]

Whole cell immobilization of refractory glucose isomerase using tris(hydroxymethyl)phosphine as crosslinker for preparation of high fructose corn syrup at elevated temperature.

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Medical and Biotech [MESH] Definitions

Syrup made from corn used widely in foods and beverages as a cheaper alternative sweetener to SUCROSE (common table sugar). It is generated by enzymatic processing of natural corn syrup to produce a liquid most widely composed of 42 or 55% FRUCTOSE, GLUCOSE, and various POLYSACCHARIDES.

MONOSACCHARIDES and DISACCHARIDES present in food, such as those present in fruits and vegetables and milk products, or those added to food such as DIETARY SUCROSE (table sugar) or HIGH FRUCTOSE CORN SYRUP.

An autosomal recessive fructose metabolism disorder due to deficient fructose-1-phosphate aldolase (EC 2.1.2.13) activity, resulting in accumulation of fructose-1-phosphate. The accumulated fructose-1-phosphate inhibits glycogenolysis and gluconeogenesis, causing severe hypoglycemia following ingestion of fructose. Prolonged fructose ingestion in infants leads ultimately to hepatic failure and death. Patients develop a strong distaste for sweet food, and avoid a chronic course of the disease by remaining on a fructose- and sucrose-free diet.

Carbohydrates present in food comprising digestible sugars and starches and indigestible cellulose and other dietary fibers. The former are the major source of energy. The sugars are in beet and cane sugar, fruits, honey, sweet corn, corn syrup, milk and milk products, etc.; the starches are in cereal grains, legumes (FABACEAE), tubers, etc. (From Claudio & Lagua, Nutrition and Diet Therapy Dictionary, 3d ed, p32, p277)

A common spice from fruit of PIPER NIGRUM. Black pepper is picked unripe and heaped for a few days to ferment. White Pepper is the ripe fruit dehulled by maceration in water. Piperine is a key component used medicinally to increase gastrointestinal assimilation of other supplements and drugs.

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