Life Lines by Dr. Dolittle

Sponsored by the American Physiological Society

Diet and Exercise

Mice run better with SOCCs?

The Ohio Physiological Society is holding their 34th annual meeting at Wright State University September 20th-21st! The Keynote Address of the meeting will be given by Dr. Robert T. Dirksen, Professor and Chair at the University of Rochester. Dr. Dirksen’s research focuses on how muscular dystrophy and heart disease develop as well as potential treatments for these conditions. His talk is titled, “Why do mice run better with SOCCs?” No, […]

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Don’t feed the birds – urban crows have higher cholesterol

If you have ever been to a fast food restaurant, you may have noticed that people are not the only consumers of fast food. In fact, some species of birds are known to frequent fast food chains where they can get a quick meal of food leftover or intentionally dropped by customers. While people may delight in tossing our feathered friends a french fry on occasion, a new study published […]

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Does size matter?

  When it comes to how blood vessels function, the answer is yes. A new study published in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology examined this question for the first time in toads (Rhinella marina). Regulation of blood vessel diameter, and hence blood pressure, is a complex process involving a variety of factors that are secreted by cells in the vascular wall in addition to factors found […]

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Animals that eat plastic?

Have you seen this? A video just released by Yellowstone National Park talks about how some heat-loving microorganisms can break down plastics. Pretty cool.   Not so cool was the recent finding published in the Proceedings of the Royal Society B: Biological Sciences that Astrangia poculata coral polyps are eating microplastics instead of brine shrimp eggs…on purpose. In the lab, the team were able to observe the corals consuming nearly […]

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Rapid switches in metabolism of hibernating animals

  In a new study published in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology, researchers examined how changes in metabolism during torpor are regulated in 13-lined ground squirrels (Ictidomys tridecemlineatus). During hibernation, these animals cycle between bouts of torpor (about 2 weeks each) when their metabolism is reduced by 95% and body temperature can drop to 5degC and short states of interbout euthermia when both temperature […]

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Editor’s picks for 2018

The Editor’s Picks for 2018 have been released for the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology. According to the editorial team, the focus of this journal is on “the regulation of whole organismal function that requires the interplay of multiple organ and tissue systems.” The top comparative physiology articles of 2018 included: An article by Hersh et al., who provided evidence that little skates may be useful […]

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Birds have a unique way of preventing muscle wasting

Muscle wasting is a major complication associated with cirrhosis and liver failure. Normally the liver functions to convert ammonia into urea. But with liver failure, this process does not work well leading to high levels of circulating ammonia, which is thought to contribute to muscle wasting in mammals. A new study published in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology, explored whether birds have the same muscle wasting […]

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