Turns out, a man's best friend might be at a higher risk of cancer due to six newfound genetic variants. The genetics study found cancer-linked variants in pre-disposed dog breeds, such as the Bernese mountain dog, the Rottweiler, and the Retriever. The study lead by Benoît Hédan at the University of Rennes resulted in "a known tumor-suppressor gene as a risk factor for histiocytic sarcoma — a rare and aggressive blood cancer that affects both dogs and humans — as well as identifying four new genetic loci associated with the disease."
More than 172 dogs were researched on and had their sequenced genomic DNA extracted from blood samples; those that tested with five or more mutations were found to be at a very high risk of developing blood cancer, along with other risks of lymphomas, osteosarcoma, and mast cell tumors.
Although a very sad discovery, it allows us a very understanding and study of these variations and cancer cells that will benefit dogs and humans as well.