Obesity (DENND1B-related)
Obesity is a common health concern in dogs. While factors like diet, exercise, and lifestyle all play important roles in a dog’s weight, genetics also have a significant influence.
A mutation in a gene called DENN Domain Containing 1B (DENND1B) seems to play a role as risk factor. This gene plays an important role in a brain signaling system that helps regulate appetite and energy balance (known as MC4R). When this system is disrupted, it can lead to increased hunger and reduced energy use, both of which promote weight gain.