▲ Up
 
14:15 22-09-2017
АКИpress CA-News Tazabek Turmush
ADVERTISE WITH US SUBSCRIBE
KazakhstanKyrgyzstanMongoliaTajikistanTurkmenistanUzbekistanWorld
POLITICSBUSINESSINCIDENTSSOCIETYCULTURESPORTANALYSISSCIENCE
Smelling your food makes you fat, study suggests
16:51, 06 July 2017, 3725
Twitterfacebookprint

AKIPRESS.COM - Not being able to smell your food could have a surprising effect on your metabolism, potentially helping you remain thin even when you eat fatty foods, a new study of the University of California, Berkeleyin mice suggests.

To conduct the study, molecular biologist Andrew Dillin of the University of California, Berkeley, and colleagues turned to a variety of genetically altered mice. The scientists gave them regular doses of the diphtheria toxin—which causes a temporary loss of odor-sensing neurons—to suppress their sense of smell. They then fed the rodents either a normal diet or fatty foods—the mouse equivalent of cheesecake and pizza—that usually induce obesity.

After more than 3 months of noshing on regular chow, the odor-deprived rodents weighed slightly less than mice whose sense of smell was intact. In the group on the high-fat diet, however, the mice that couldn’t smell weighed 16% less than animals that could, which became obese. Losing the ability to smell also caused a different group of already-obese mice to lose weight, the researchers reveal today in Cell Metabolism.

The obvious explanation for this effect—that mice with impaired olfaction were eating less—turned out to be wrong. There was no difference in the animals’ food consumption. Nor were the slim rodents getting more exercise. They weren’t moving around their cages more than their porky counterparts.

Instead, the researchers determined, they stayed svelte because they burned more calories, especially in their brown fat. Unlike the white fat that accumulates on our bellies and thighs, brown fat is specialized to produce heat through metabolism. Adult humans have only a small amount of brown fat, but rodents carry plenty of it, and it’s crucial for maintaining their body temperature. Dillin and colleagues found that not only did the brown fat ramp up its activity in the smell-deficient animals, but some of their white fat also became more like brown fat. “They rewire their metabolic programming to burn more calories,” he says. When a mouse can’t smell its food, he speculates, it may “think” that it has eaten more than it really has, prompting it to use more energy.


Full access to all news articles in English

1 month2000 somsubscribe
year20000 somsubscribe
These subscription fees are for private individuals only. Please contact us via phone +996 (312) 900-776 or email info@akipress.org for corporate subscription inquiries
Twitterfacebookprint
LATEST NEWS
14:02 Leonardo DiCaprio: Kazakhstan will be the 1st country to bring wild tigers back to Central Asia14:02 Kyrgyzstanis gain 3 medals at Asian Chess Championship among PWD14:00 Kyrgyzstan has all conditions for production of solar collectors: Committee13:18 Kyrgyzstan's Varvara Petrova ranks 34 at ISU Junior Grand Prix of Figure Skating13:17 Maker Space Science Lab to open in Bishkek12:54 Atambayev congratulates Kyrgyzstanis on State Language Day12:50 Peace and stability vital for sustainable development in a fragile world, Kazakh FM says at UN Assembly12:43 Death of Queensland's largest crocodile in 30 years could spark violent power grab12:26 Woman rescued from burning apartment dies in Chui — Ministry of Emergency Situations12:23 Respublika—Ata-Jurt and Onuguu-Progress factions undecided on ratification of Kyrgyz-Uzbek state border deal12:13 Ukraine files WTO complaint over Kazakhstan steel duties12:05 Immunohistochemistry laboratory to appear in Osh11:55 Scientists of Kyrgyzstan will get their premiums tripled11:40 Kyrgyzstan's efforts to implement Istanbul Anti-corruption Action Plan positively assessed11:39 Training course on identifying potential foreign terrorist fighters at borders hosted in Tashkent11:36 Export grows by 27.1%, to EAEU countries – by 32.7% within 7 months – PM Isakov11:22 Istanbul's Ataturk airport reopens after jet crash, Turkish Airlines CEO says11:20 20% of Kyrgyzstanis in Syria are woman11:15 Economy of Almaty city is five times bigger than GDPs of Kyrgyzstan and Tajikistan, says Nazarbayev11:05 Swiss-Kyrgyz businessmen to meet in Kyrgyzstan
© AKIpress News Agency - 2001-2017. All rights reserved
Republication of any material is prohibited without a written agreement with AKIpress News Agency. Any citation must be accompanied by a hyperlink to akipress.com.
Our address:
Moskovskaya str. 189, Bishkek, the Kyrgyz Republic
e-mail: english@akipress.org, akipressenglish@gmail.com;
Tel/Fax: +996(312)65-03-06