Although large dogs tend to live shorter lives than small dogs, researchers have discovered that their brains tend to age at the same rate. A University of Arizona team is launching a multiyear study to better understand cognitive aging in dogs.
Evan MacLean leads the Arizona Canine Cognition Center at UA’s vet school. His team plans to study 75 medium-sized dogs, focusing on how a specific growth hormone affects cognitive aging.
The goal is to understand why some dogs maintain cognitive health while others experience impairments and signs of dementia.
“We're hoping that by answering these questions, we'll not only be able to make discoveries that can advance dog health, but that we’ll also learn things that are very relevant to human cognitive health, and specifically which may help us develop effective treatments and interventions for conditions like Alzheimer's disease," he said.
His team plans to study 75 medium-sized dogs, focusing on how a specific growth hormone affects cognitive aging.
“So there are a lot of great scientific things that we can do with dogs that can generate answers to deep scientific questions relatively quickly and potentially advance and accelerate things in human medicine," MacLean said.
The research team is asking community dog owners for assistance in the study. They’re seeking dogs of 10 to 13 years old who weigh between 30 and 55 pounds.
-
The Department of Interior rolled back habitat protection rules in the Endangered Species Act in July. Arizona and about 20 other states say in new legal filings that the Trump administration acted illegally.
-
Conservationists argue there are only a little more than 300 Mexican gray wolves, and they continue to need protection.
-
The letter comes after an August roundup in northwest Colorado, where the BLM gathered 894 wild horses. Nine died in the operation.
-
Live cattle imports from Mexico were again halted after a more than year-long pause to protect against the New World screwworm. Now, the border is back open in Douglas.
-
In the Sonoran Sky Islands region, one organization is working to bring back native species. But it’s running up against a lengthening border wall.