Search results for thermogenesis

Cell & Microbiology Oct 16, 2013

Mapping subcellular temperature profiles with genetically-encoded thermosensors

(Phys.org) —If you asked a biologist what any given cell is going to do next, they might ask you first to tell them its electrical potential, oxygenation, pH, osmolarity or glucose concentration. Depending on how finely-scaled ...

Aug 06, 2008

Hot peppers really do bring the heat

Chili peppers can do more than just make you feel hot, reports a study in the August 1 Journal of Biological Chemistry; the active chemical in peppers can directly induce thermogenesis, the process by which cells convert ...

Jan 23, 2008

Adaptive functional evolution of leptin in cold-adaptive pika family

Researchers at the Northwest Institute of Plateau Biology, Chinese Academy of Sciences have put forward the viewpoint for the first time that adaptive functional evolution may occur in the leptin protein of the pika (Ochotona) ...

Evolution Apr 08, 2019

Woolly mammoths and Neanderthals may have shared genetic traits

A new Tel Aviv University study suggests that the genetic profiles of two extinct mammals with African ancestry—woolly mammoths, elephant-like animals that evolved in the arctic peninsula of Eurasia around 600,000 years ...

Materials Science Oct 07, 2016

Light-emitting dyes measure heat generation within living cells with subcellular accuracy

A technique that uses fluorescent dyes to measure the temperature inside living cells is helping to reveal the mechanism by which living organisms generate heat.

Evolution Jul 19, 2016

Where the buffalo have evolutionarily roamed

Once almost wiped out from existence, the mighty bison has recovered to become a symbol of pride for the American West and European conversation efforts.

Biotechnology Apr 25, 2014

Researchers find first evidence of fat-regulating hormone in avian species

(Phys.org) —Since leptin was discovered 20 years ago, more than 115,000 papers have been published on this protein in humans, and another 5,000 have appeared on leptin in mice.

Plants & Animals Feb 10, 2014

How do polar bears stay warm? Research finds an answer in their genes

(Phys.org) —In the winter, brown and black bears go into hibernation to conserve energy and keep warm.

Plants & Animals May 17, 2012

New research discovers metabolic adaptation to high altitudes

When mammals are cold, they can employ physical changes to stay warm -- such as intense shivering. Like any form of aerobic exercise, though, "shivering thermogenesis" is especially challenging at high altitudes because there ...

Evolution Jun 22, 2011

Scientist cites enlarged skeletal muscles as reason birds exist

A developmental biologist at New York Medical College is proposing a new theory of the origin of birds, which traditionally has been thought to be driven by the evolution of flight. Instead, Stuart A. Newman, Ph.D., credits ...

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