Navigation Links
Fructose sugar makes maturing human fat cells fatter, less insulin-sensitive
Date:6/21/2010

Fructose, the sugar widely used as high-fructose corn syrup in soft drinks and processed foods, often gets some of the blame for the widespread rise in obesity. Now a laboratory study has found that when fructose is present as children's fat cells mature, it makes more of these cells mature into fat cells in belly fat and less able to respond to insulin in both belly fat and fat located below the skin.

The results will be presented Sunday at The Endocrine Society's 92nd Annual Meeting in San Diego by lead author Georgina Coade, a PhD student at the University of Bristol in the U.K.

"Our results suggest that high levels of fructose, which may result from eating a diet high in fructose, throughout childhood may lead to an increase in visceral [abdominal] obesity, which is associated with increased cardiometabolic risk," Coade said.

Defined by a large waistline, abdominal obesity raises the risk of heart disease and Type 2 diabetes. The abdominal cavity contains one of two major types of fat in the body: visceral fat. The other type, subcutaneous fat, is found below the surface of the skin.

Although researchers have shown the negative effects of fructose on the fat distribution of rodents, the effects of this sugar on human adipocytes, or fat cells, are not clear, according to Coade. Therefore, she and her fellow researchers studied biopsy specimens of both subcutaneous and visceral fat from 32 healthy-weight children who had not yet gone through puberty.

From the biopsy samples, the investigators obtained preadipocytesthe precursors to fat cells that have the potential to differentiate, or mature, into fat-containing adipocytes. They then allowed the precursor cells to mature for 14 days in culture media containing normal glucose (the main sugar found in the bloodstream and the principal source of energy in the body), high glucose or high fructose. The researchers assessed cell differentiation by measuring activity of an enzyme (GPDH) and the abundance of the adipocyte fatty acid binding protein, which are both present only in mature fat cells.

Fructose, the research team found, had different effects to that of glucose and caused the fat cells to differentiate morethat is, to form more mature fat cellsbut only in visceral fat.

For both types of fat cells, maturation in fructose decreased the cells' insulin sensitivity, which is the ability to successfully take up glucose from the bloodstream into fat and muscles. Decreased insulin sensitivity is a characteristic of Type 2 diabetes.

Although prolonged exposure to fructose had a negative effect on insulin sensitivity, when Coade and her co-workers exposed mature fat cells, rather than preadipocytes, to fructose for 48 hours, the cells' insulin sensitivity increased. The reason why is unknown. However, she said, "Fructose alters the behavior of human fat cells if it is present as the fat cells mature. We can maybe compare this [timing] to periods in children when they are making their fat."


'/>"/>

Contact: Aaron Lohr
alohr@endo-society.org
240-482-1380
The Endocrine Society
Source:Eurekalert

Related medicine news :

1. New Simply...Go-Gurt Contains No High Fructose Corn Syrup, Artificial Flavors or Colors
2. Junk Food Sugar May Help Some Fat Cells Proliferate
3. Key Blood Sugar Test Seems to Differ By Race
4. University of Pennsylvania: Contrary to popular models, sugar is not burned by self-control tasks
5. Glucose Tattoo Could Track Blood Sugar Levels for Diabetics
6. Fewer Sugary Drinks, Less High Blood Pressure
7. Sugar Before Shots Helps Infants Cope
8. ApexTwo and SugarCRM Announce New Implementation Partnership
9. Tight Blood Sugar Control May Not Harm Diabetics
10. Added Sugars in Diet Threaten Heart Health
11. Novel Method Eyed for Normalizing Blood Sugar
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/23/2017)... (PRWEB) , ... February 23, 2017 , ... ... an official 2017 partnership with The Jensie Gran Fondo of Marin. For the ... UVB rays with Thinksport’s broad-spectrum, mineral-based sunscreen. , “We are thrilled to provide ...
(Date:2/23/2017)... ... 2017 , ... The American Cleft Palate-Craniofacial Association (ACPA) is pleased to announce ... a longtime supporter of the event. , "We are pleased that KLS Martin is ... Havlik, 2017 ACPA President. "KLS Martin has a long track record of support of ...
(Date:2/23/2017)... ... February 23, 2017 , ... On April 13, ... symposium on “Doping in Sport: How the Culture Might Change,” in ... LLP. The symposium will be held at Pepperdine University in Malibu, California. , ...
(Date:2/23/2017)... ... February 23, 2017 , ... Healthcare ... for those in the fight against cancer, has produced a seminal study that ... HRA will release top-line findings in a webinar, Defining Compassionate Care Through the ...
(Date:2/23/2017)... York (PRWEB) , ... February 23, 2017 , ... Curemark, ... the safety and efficacy of CM-AT in children aged 3-8 with Autism, is now ... clinical sites already enrolling children across the United States. , “There are currently ...
Breaking Medicine News(10 mins):
(Date:2/24/2017)... NEW YORK , Feb. 23, 2017  This ... US$ Thousand by the following Products: ... analyzed in the report include Pharmaceuticals, and Agrochemicals. The ... Japan , Europe , ... provided for the period 2015 through 2022. Also, a ...
(Date:2/24/2017)... -- Research and Markets has announced the addition of ... report to their offering. ... The latest research Urinary Incontinence Drugs Price Analysis ... the global Urinary Incontinence market. The research answers the following ... marketed for Urinary Incontinence and their clinical attributes? How are they ...
(Date:2/23/2017)... Feb. 23, 2017  Cogentix Medical, Inc. (NASDAQ: CGNT), ... innovative proprietary products for the urology market, will release ... ended December 31, 2016 before the market open on ... will host a conference call and webcast to discuss ... 9, 2017 at 11:00 a.m. Eastern Time (10:00 a.m. ...
Breaking Medicine Technology: