Life Lines by Dr. Dolittle

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Archive for May 2018

Comparative Physiologist: Berry Pinshow, PhD

I came across a really interesting interview of Dr. Barry Pinshow, a comparative physiologist and member of the American Physiological Society. In this Living History of Physiology video, Dr. Pinshow talks about growing up in South Africa and his decision to move to Israel as a teen. He also discusses how he became interested in science, his research in desert biology and the influential people in his career. Very inspiring!

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Caffeine redemption

Sometimes caffeine gets bad rap. But, not all caffeine drinks are created equal and certainly there are health issues related to over-consumption. But, as an avid coffee drinker, I’d like to think there are some benefits to my favorite morning treat. A recent article published in American Journal of Physiology – Endocrinology and Metabolism highlighted some of the health benefits of caffeine. Thank you AJP! Obesity is a complicated condition that can […]

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Sleep vs torpor

  I read an interesting review article published in Physiology comparing the low metabolic states of non-rapid eye movement sleep (NREM) and torpor. According to the article, all mammals experience NREM sleep patterns during which energy expenditure is decreased and body as well as brain temperatures decline. Animals that experience torpor (hummingbirds, arctic ground squirrels, some mice, bears, etc) have reduced metabolic rates and body temperatures that dip below baseline. NREM […]

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Green-blooded lizards

Researchers have known that some lizards have green blood due to bile pigments: In fact, six species of lizards found in New Guinea are known to have green blood. The levels of bile found in their blood are four times higher than the toxic level for humans. New research shows that green blood evolved independently 4 times in evolutionary history. These findings suggest that high levels of circulating green bile […]

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Pediatric obesity in marmoset monkeys begins in the womb

A new review article published in the American Journal of Physiology – Regulatory, Integrative and Comparative Physiology explored an interesting question: how do prenatal experiences along with the intrauterine environment impact the future development of pediatric and adult obesity in animals? Common marmosets (Callithrix jacchus) are New World monkeys that can spontaneously develop obesity early in life when living in captivity with high food availability and relatively low physical activity. Similar to […]

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