Video | Business Headlines | Internet | Science | Scientific Ethics | Technology | Search

 


Shivering could burn body fat by stimulating hormones

5 February 2014

Shivering against the cold may have the added benefit of burning body fat, a new study led by a University of Queensland researcher has found.

The study, which determined the role of hormones in regulating how humans respond to cold, showed that shivering caused the body to secrete hormones that transform ordinary white fat into fat-burning brown fat.

Dr Paul Lee, who led the study, is a UQ/National Health and Medical Research Council-funded endocrinologist and visiting fellow at the National Institutes of Health (NIH) in the United States.

“Unlike ordinary white fat, which primarily stores excess calories, brown fat may actually help the body burn calories when activated,” Dr Lee said.

Healthy volunteers were exposed to cold temperatures until they shivered and researchers collected blood samples during cooling to measure levels of different hormones.

“We found that the hormones irisin and FGF21 were released when the subjects grew cold, irisin from shivering muscle and FGF21 from activated brown fat,” Dr Lee said.

The team then treated human white fat cells with the two hormones in the laboratory and observed that treated fat cells took on the characteristics of heat-producing and energy-burning brown fat cells.

Previous studies have shown that people who are lean tend to have more brown fat than people who are overweight.

“Further research will establish whether these two hormones may be targeted to help the body produce more brown fat, which may benefit metabolism and weight control,” Dr Lee said.

The study was conducted at and supported by the Intramural Research Program of the National Institute of Diabetes and Digestive and Kidney Diseases at the NIH.

Dr Lee’s role in the study was also supported by the Australian National Health and Medical Research Council Early Career Fellowship, the Royal Australasian College of Physicians Foundation Diabetes Australia Fellowship, the Bushell Fellowship, and the School of Medicine at The University of Queensland.

Full study findings appear in the journal, published on 4 February 2014.

END

© Scoop Media

 
 
 
 
 
Business Headlines | Sci-Tech Headlines

 

Scoop Business: NZ Dollar Catches Breath After "Goldilocks" Slump

The New Zealand dollar edged up following its dramatic slump yesterday after the Reserve Bank confirmed speculation it intervened in the currency market last month and PM John Key suggested a “Goldilocks” level far lower than at present. More>>

ALSO:

Biosecurity: Kiwifruit Claim To Hold Officials Accountable For Psa

Kiwifruit growers have joined forces to hold Biosecurity NZ accountable in the courts for its negligence in allowing 2010’s Psa outbreak that devastated New Zealand’s kiwifruit industry and exports. Foundation claimants representing well ... More>>

ALSO:

Poison: Anglers Advised Not To Eat Trout In 1080 Areas

With the fishing season opening in just a few days (1 October 2014), anglers are being warned by the Department of Conservation(DOC) not to eat trout from pristine backcountry waters and their downstream catchments, where the department is conducting 1080 poisoning operations. More>>.

ALSO:

Quotas: MPI Swoop On Suspected Fraudulent Fishing Activity

Ministry for Primary Industries (MPI) compliance officers swooped on a Hawkes Bay fishing enterprise today to secure evidence in an investigation into suspected fraudulent activity... “The investigation involves activity throughout the commercial supply chain – catching, landing, processing and exporting.” More>>

ALSO:

Scoop Business: Fonterra Slashes 2015 Milk Payout, Earnings Tumble 76%

Fonterra Cooperative Group cut its forecast 2015 milk price payout by about 12 percent, citing weaker global dairy prices and said there is a risk of further declines given strong global milk production. More>>

ALSO:

Scoop Business: RBNZ Keeps OCR At 3.5%, Signals Slower Pace Of Future Hikes

Reserve Bank governor Graeme Wheeler kept the official cash rate at 3.5 percent and signalled he won’t be as aggressive with future rate hikes as previously thought as inflation remains tamer than expected. The kiwi dollar fell to a seven-month low. More>>

ALSO:

Weather: Dry Spells Take Hold In South Island

Many areas in the South Island are tracking towards record dry spells as relatively warm, dry weather that began in mid-August continues... for some South Island places, the current period of fine weather is quite rare. More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus

Standards New Zealand

Standards New Zealand

Mosh Social Media
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news