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Tag Archive for ‘Experimental Biology’

Sponging up bacterial infections

Antibiotic-resistant bacteria are a pretty scary thing, which is why researchers are working so hard to come up with new and creative ways to fight them off. Take for example nanosponges. In a presentation from the Experimental Biology meeting in Chicago last month, researchers from the University of California in San Diego are testing the use of nanosponges (shown on the right in the figure below) to bind and inactivate […]

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Experimental Biology 2017 – Day 5

Here are the highlights from the final day of the meeting: Carbon monoxide (CO) is not all that bad: Michael Tift, graduate student at Scripps Institute of Oceanography, described how the body naturally produces CO when red blood cells are broken down and CO can actually be protective against inflammation at low doses. His research was focused on measuring whether species that have more hemoglobin (from living in hypoxic environments) also have […]

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Experimental Biology – Day 4

The August Krogh Distinguished lecture was awarded to Dr. Warren Burggren, who gave a fantastic lecture on epigenetics, or modifications to gene expression. He discussed how epigenetic changes to our genes are reversible. So when a stimulus like hypoxia changes our genes, these epigenetic changes to the genes go away rather quickly when the hypoxic insult is gone, which contrasts genetic mutations that arise from modifications to the genetic code leading […]

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Experimental Biology – Day 3

Highlights from today’s sessions included: Norelia Ordonez-Castillo, undergraduate student from Fort Hays State University, presented her research on channel catfish. According to Norelia, these fish can become obese so her research was geared towards trying to find out how their receptor for LDL cholesterol differs from rodents and humans. But what I want to know is whether the obese catfish tastes better… Christine Schwartz, Investigator from University of Wisconsin-La Crosse, studied how […]

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Experimental Biology – Day 2

Yesterday was a great day for comparative physiology! Highlights from the seminars on comparative physiology: Melissa Reiterer, graduate student from Florida Atlantic University, presented her research on how freshwater turtles (Trachemys scripta) survive for long periods of time without oxygen and do not develop oxidative stress after oxygen is restored. The turtles are able to do this by creating their own antioxidants as well as eliminating oxidative stress. In contrast, mammals including humans, develop […]

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Experimental Biology – Day 1

Day 1 of the meeting was as inspiring as usual. The Porter Fellow Reunion Reception took place this evening. This 50 year-old program is designed to support trainees as they conduct research projects in physiology and learn to become independent researchers. It was amazing to see so many past and present fellows and to hear about their accomplishments since receiving the award. Following the Porter reception, I moseyed on over to the Walter B. Cannon memorial lecture. This […]

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Experimental Biology – Day 5

Today was the final day of the meeting. Dr. Joe Thompson (Franklin and Marshall College) spoke about oblique striated muscles, which get their name from the diagonal pattern formed by the location of the Z-lines. This type of muscle is common among cephalopods, nematodes, tunicates, molluscs, etc. Dr. John Whiteman (University of Wyoming) gave a fascinating talk about polar bears and whether hunting on the shore as compared to the sea […]

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Experimental Biology – Day 3

I LOVE THIS MEETING! DAY 3 included several very interesting comparative physiology sessions. Eldon Braun (University of Arizona) spoke about how birds have a unique way to prevent water loss and thereby dehydration. In mammals, the kidneys are responsible for recovering water from the urine. However when birds are well-hydrated, the urine enters the colon and moves backwards up the gastrointestinal tract to facilitate water reabsorption prior to voiding the […]

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Experimental Biology 2016 – Day 4

Still going strong…here are the highlights from several sessions held on Day 4: John Eme (California State University, San Marcos) presented data testing the effects of varying temperatures mimicking overwintering conditions on embryonic development of Lake whitefish. He found that indeed exposure to variable incubation temperatures between 2-8 deg C resulted in increased mortality. Moreover, the embryos hatched earlier and were smaller than animals exposed to constant temperatures. Nariman Hossein-Javaheri et al., (University […]

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Experimental Biology 2016 – August Krogh Distinguished Lecturer: Dr. Jon Harrison

This year’s August Krogh Distinguished lecture, the highest award given to an accomplished Comparative Physiologist from the Comparative and Evolutionary Physiology section of the American Physiological Society was awarded to Dr. Jon Harrison, Arizona State University. Dr. Harrison gave an outstanding seminar in which he reviewed some of his major research discoveries. His work has included examining how insects tolerate various temperatures and how changes in the levels of atmospheric […]

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