Featured Research

from universities, journals, and other organizations

Tweaking energy consumption to combat muscle wasting, obesity

Date:
December 16, 2013
Source:
Rockefeller University Press
Summary:
Using a new technique to evaluate working muscles in mice, researchers have uncovered physiological mechanisms that could lead to new strategies for combating metabolism-related disorders like muscle wasting and obesity.

Using a new technique to evaluate working muscles in mice, researchers have uncovered physiological mechanisms that could lead to new strategies for combating metabolism-related disorders like muscle wasting and obesity. The study appears in The Journal of General Physiology.

ATP-sensitive potassium (KATP) channels, which link membrane excitability to cell metabolism, are abundant in skeletal muscle and play an important role in regulating muscle function and energy consumption. However, it is not clear how KATP activation affects muscles under physiological conditions and how this translates to energy use.

Researchers from the University of Iowa Carver College of Medicine developed a technique to evaluate muscle function in the tibialis anterior leg muscle of living mice. They found that, during low-level exercise, which triggered the opening of KATP channels, muscles with disrupted KATP function had higher peak force, calcium release, and heat production -- which is associated with increased energy consumption -- than muscles with normal KATP function.

The results show how KATP channels control energy use even during mundane, low-intensity activity. Modulating KATP channel activity could therefore provide a new strategy to combat metabolic disorders like muscle wasting and cachexia, when the goal is to conserve energy, or obesity, when increasing energy consumption is desired.


Story Source:

The above story is based on materials provided by Rockefeller University Press. Note: Materials may be edited for content and length.


Journal Reference:

  1. Z. Zhu, A. Sierra, C. M.- L. Burnett, B. Chen, E. Subbotina, S. R. K. Koganti, Z. Gao, Y. Wu, M. E. Anderson, L.-S. Song, D. J. Goldhamer, W. A. Coetzee, D. M. Hodgson-Zingman, L. V. Zingman. Sarcolemmal ATP-sensitive potassium channels modulate skeletal muscle function under low-intensity workloads. The Journal of General Physiology, 2013; DOI: 10.1085/jgp.201311063

Cite This Page:

Rockefeller University Press. "Tweaking energy consumption to combat muscle wasting, obesity." ScienceDaily. ScienceDaily, 16 December 2013. <www.sciencedaily.com/releases/2013/12/131216142002.htm>.
Rockefeller University Press. (2013, December 16). Tweaking energy consumption to combat muscle wasting, obesity. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2013/12/131216142002.htm
Rockefeller University Press. "Tweaking energy consumption to combat muscle wasting, obesity." ScienceDaily. www.sciencedaily.com/releases/2013/12/131216142002.htm (accessed July 22, 2014).

Share This




More Health & Medicine News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Courts Conflicted Over Healthcare Law

Courts Conflicted Over Healthcare Law

AP (July 22, 2014) Two federal appeals courts issued conflicting rulings Tuesday on the legality of the federally-run healthcare exchange that operates in 36 states. (July 22) Video provided by AP
Powered by NewsLook.com
Why Do People Believe We Only Use 10 Percent Of Our Brains?

Why Do People Believe We Only Use 10 Percent Of Our Brains?

Newsy (July 22, 2014) The new sci-fi thriller "Lucy" is making people question whether we really use all our brainpower. But, as scientists have insisted for years, we do. Video provided by Newsy
Powered by NewsLook.com
Scientists Find New Way To Make Human Platelets

Scientists Find New Way To Make Human Platelets

Newsy (July 22, 2014) Boston scientists have discovered a new way to create fully functioning human platelets using a bioreactor and human stem cells. Video provided by Newsy
Powered by NewsLook.com
Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

Gilead's $1000-a-Pill Drug Could Cure Hep C in HIV-Positive People

TheStreet (July 21, 2014) New research shows Gilead Science's drug Sovaldi helps in curing hepatitis C in those who suffer from HIV. In a medical study, the combination of Gilead's Hep C drug with anti-viral drug Ribavirin cured 76% of HIV-positive patients suffering from the most common hepatitis C strain. Hepatitis C and related complications have been a top cause of death in HIV-positive patients. Typical medication used to treat the disease, including interferon proteins, tended to react badly with HIV drugs. However, Sovaldi's %1,000-a-pill price tag could limit the number of patients able to access the treatment. TheStreet's Keris Lahiff reports from New York. Video provided by TheStreet
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins