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

 

Interest Rates: Wheeler Hikes OCR To 3% On Inflationary Pressures, Eyes Kiwi

Reserve Bank governor Graeme Wheeler lifted the official cash rate for the second time in as many months, saying non-tradable inflationary pressures were "becoming apparent" in an economy that’s picking up pace and he's watching the impact of a strong kiwi dollar on import prices. More>>

ALSO:

Scoop Business: Equity Crowd Funding Carries Risks, High Failure Rate

Equity crowd funding, which became legal in New Zealand this month, comes with a high risk of failure based on figures showing existing forays into social capital have a success rate of less than 50 percent, one new entrant says. More>>

ALSO:

Scoop Business: NZ Migration Rises To 11-Year High In March

The country gained a seasonally adjusted 3,800 net new migrants in March, the most since February 2003, said Statistics New Zealand. A net 400 people left for Australia in March, down from 600 in February, according to seasonally adjusted figures. More>>

ALSO:

Hugh Pavletich: New Zealand’s Bubble Economy Is Vulnerable

The recent Forbes e-edition article by Jesse Colombo assesses the New Zealand economy “ 12 Reasons Why New Zealand's Economic Bubble Will End In Disaster ”, seems to have created quite a stir, creating extensive media coverage in New Zealand. More>>

ALSO:

Thursday Market Close: Genesis Debut Sparks Energy Rally

New Zealand stock rose after shares in the partially privatised Genesis Energy soared as much as 18 percent in its debut listing on the NZX, buoying other listed energy companies in the process. Meridian Energy, MightyRiverPower, Contact Energy and TrustPower paced gains. More>>

ALSO:

Power Outages, Roads Close: Easter Storm Moving Down Country

The NZ Transport Agency says storm conditions at the start of the Easter break are making driving hazardous in Auckland and Northland and it advises people extreme care is needed on the regions’ state highways and roads... More>>

ALSO:

Get More From Scoop

 
 
Computer Power Plus
 
 
 
 
 
 
 
 
Sci-Tech
Search Scoop  
 
 
Powered by Vodafone
NZ independent news