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Tag Archive for ‘obesity’

Obese Horses

Abigail Harms, an undergraduate student at Beloit College working with Dr. Kathryn Johnson, also presented her research today at the Experimental Biology 2019 conference examining the effects of obesity in horses. Just like humans and pets, horses are increasingly becoming obese. Her research is seeking ways to measure hormonal changes that occur with obesity in different breeds of horses.  

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Leptin influences mammalian bone development

Leptin is a hormone that was discovered in 1994 and was once heavily studied by researchers who had hoped it might be useful in promoting weight loss.  It is produced by fat cells and signals to the brain whether those fat cells have sufficient energy, at which time it suppresses hunger and thereby promotes weight loss (WebMD; Klok et al., 2007). One of the reasons it failed as a weight […]

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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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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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How Ossabaw Island swine are helping us understand obesity and diabetes

         Ossabaw Island off the coast of Georgia (United States) is home to feral swine brought over by early Spanish explorers. In relative isolation on the island, with the exception of the introduction of a Hampshire pig, the Ossabaw pigs have become genetically distinct from those living on the mainland. Ossabaw pigs are prone to obesity and are the only miniature pigs known to develop type 2 […]

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Is your pet overweight?

A new study conducted by the Banfield Pet Hospital (Vancouver, Washington) reports that as many as 1 in 3 dogs and cats living in the United States are overweight. The study was based on data collected by Banfield veterinary clinics on 2.5 million dogs and half a million cats over the past year. Obesity in pets was not related to the weight status of their owners. In fact, overweight pets were less prevalent in states whose populations […]

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Having pets can reduce the risk of developing allergies and obesity

A recent study published in Microbiome from researchers at the University of Alberta shows that babies from families with pets had nearly two-fold increases in the amount of two specific microbes in their guts, Ruminococcus and Oscillospira. These particular microbes are associated with reduced risks of developing childhood allergies as well as obesity. According to study author Dr. Anita Kozyrskyj, “There’s definitely a critical window of time when gut immunity and microbes […]

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Obesity gene found in Labrador retrievers

Researchers at the University of Cambridge in Britain recently studied ‘willpower’ in pet Labrador retrievers. After allowing each dog to smell a hot dog, the researchers placed the hot dog in a hamster cage and sealed it shut with duct tape. While some dogs showed only mild interest in the sealed-up hot dog, others were fixated on the out-of-reach treat. One dog, named Ash, broke apart the contraption to obtain the treat. This […]

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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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