. Energy News .

Bees decrease food intake, live longer when given compound found in red wine
by Staff Writers
Tempe, AZ (SPX) Sep 25, 2012

ASU researchers have confirmed that not only does resveratrol, a compound found in red wine, extend the lifespan of honey bees by 33 to 38 percent, it also changes the decisions that bees make about food by triggering a "moderation effect" when they eat. Photo by: Brenda Rascon.

The idea that drinking red wine may provide health benefits - or possibly even extend your life - is an appealing thought for many people. Now, there may be added attraction. Researchers have found that when given resveratrol, a compound found in red wine, bees consume less food.

Previous scientific studies on resveratrol show that it lengthens the lifespan of diverse organisms ranging from unicellular yeast to fruit flies and mice. Since bees are social animals like humans, a team of scientists from Arizona State University, the Norwegian University of Life Sciences, and Harvard Medical School, decided to test the effects of the chemical on the honey bee.

In a series of experiments published in the journal Aging, the scientists tested the effects of resveratrol on the lifespan, learning ability, and food perception in honey bees.

Their research has confirmed that not only does this compound extend the lifespan of honey bees by 33 to 38 percent, it also changes the decisions that bees make about food by triggering a "moderation effect" when they eat.

"For the first time, we conducted several tests on the effects of resveratrol by using the honey bee as a model," said Brenda Rascon, an ASU alumnus and doctoral student with Gro Amdam, an associate professor in ASU's School of Life Sciences and the Norwegian University of Life Sciences. "We were able to confirm that under normal living conditions, resveratrol lengthened lifespan in honey bees."

Since resveratrol is an antioxidant, researchers also questioned whether it would be capable of diminishing the damaging effects of "free radicals" - often released during stressful conditions. Free radicals are believed to cause damage to cells, and have an effect on how we age. Resveratrol did not, however, prove to extend lives of bees living under stressful conditions.

Yet, since the bees tested with the compound were living longer, researchers asked the next question: What's happening that is causing them to live longer?

"Because what we eat is such an important contributor to our physical health, we looked at the bees' sensitivity to sugar and their willingness to consume it," said Amdam. "Bees typically gorge on sugar and while it's the best thing for them, we know that eating too much is not necessarily a good thing."

Interestingly, Amdam, Rascon, and their research team discovered that bees given the compound were less sensitive to sugar.

By using different sugar solutions - some very diluted and some with stronger concentrations - they found that bees receiving resveratrol were not as interested in eating the sugar solutions unless the sugar was highly concentrated. The bees basically changed their perception about food.

In a final experiment, they measured how much food the bees would consume if given the opportunity to eat as much sugar water as they possibly could.

"Surprisingly, the bees that received the drug decreased their food intake," said Rascon.

"The bees were allowed to eat as much as they pleased and were certainly not starving - they simply would not gorge on the food that we know they like. It's possible resveratrol may be working by some mechanism that is related to caloric restriction - a dietary regimen long known to extend lifespan in diverse organisms."

Related Links
Arizona State University
Farming Today - Suppliers and Technology

Get Our Free Newsletters Via Email
Buy Advertising Editorial Enquiries


. Comment on this article via your Facebook, Yahoo, AOL, Hotmail login.

Share this article via these popular social media networks
del.icio.usdel.icio.us DiggDigg RedditReddit GoogleGoogle

Horticultural hijacking
Newark, DE (SPX) Sep 24, 2012
It's a battleground down there - in the soil where plants and bacteria dwell. Even though beneficial root bacteria come to the rescue when a plant is being attacked by pathogens, there's a dark side to the relationship between the plant and its white knight. According to research reported by a University of Delaware scientific team in the September online edition of Plant Physiology, ... read more

Apple fans complain of missing landmarks in new map system

Pioneering UK project to improve land carbon intelligence accuracy and reliability

More satellite launches planned for upgrading maritime monitoring

Astrium installs new terminal in Mexico to receive SPOT 6 and SPOT 7 imagery

Improved positioning indoors

ITT Exelis announces new capability in GPS interference, detection and geolocation

Countdown: a month to go to Galileo's next launch

Monitech Announces Zero-Installation Tracking System for Automotive Industry

Nunavut's mysterious ancient life could return by 2100

Forest killer plant study explores rapid environmental change factors

Research study trees chopped down

Old Deeds, Witness Trees Offer Glimpse of Pre-settlement Forest in West Virginia

New Uses for Old Tools Could Boost Biodiesel Output

Most biofuels are not green

World's first biofuel jet flight to take off in Canada

Sorghum Eyed as a Southern Bioenergy Crop

Two-thirds of the world's new solar panels were installed in Europe in 2011

SolarBridge Technologies Introduces New Monitoring System

AREVA integrates energy storage in its Solar CLFR design

Panasonic Marks First Shipment of Branded Solar Panels to North America

Wind power faces tax credit uncertainty

Sufficient wind energy available to meet global demands without damaging climate

Report backs greater role for wind energy

Wind could meet many times world's total power demand by 2030

Australian coal projects mega polluters?

Australian coal basin may be top 10 polluter: Greenpeace

Coal mining jobs slashed in Australia

China mine accident kills 10

China police kill homeowner in demolition protest

Chinese man wrongly sent to labour camp: panel

H.K. students protest over 'brainwashing' classes

China villager bombs local government office

Memory Foam Mattress Review

Newsletters :: SpaceDaily Express :: SpaceWar Express :: TerraDaily Express :: Energy Daily
XML Feeds :: Space News :: Earth News :: War News :: Solar Energy News


The content herein, unless otherwise known to be public domain, are Copyright 1995-2012 - Space Media Network. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement,agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement