Lessons on love and fidelity have long been learned from the canine kingdom; now add cancer and aging.
The Gerald P. Murphy Cancer Foundation, a not-for-profit research foundation headquartered in West Lafayette, Indiana, has a mission “to accelerate medical progress in the fields of cancer treatment, cancer prevention, and aging,” and is coming up with useful data through studies of pet dogs. (The center was named posthumously, after his untimely death, for founder Gerald Murphy, developer of the Prostate Specific Antigen (PSA) test that remains the gold standard for early detection of prostate cancer.) Most recently comes news of discoveries made with the help of Kona, a Rottweiler who is getting along in years herself. It was reported last week on MSNBC by by Anne Marie Tiernon of WTHR-TV.
There are new clues about why some of us live longer than others. A new study of dogs has revealed a new role for the ovaries. Ovaries produce eggs and hormones and also have a primary role in bearing children. But the study in West Lafayette points to a larger ovarian ecology, meaning the ovaries have a role in how long we live.
Kona, a 13-year-old Rottweiler from Cleveland, has achieved exceptional longevity for her breed. Most live about nine years. Data about Kona and 304 other Rottweilers was collected and analyzed at the Gerald P. Murphy Cancer Foundation.’We are trying to find ways to promote exceptional longevity in pets and people,’ said Dr. David Waters, DVM PhD. director of the Exceptional Living Studies Center.
In combing through the dog data, the Center’s researchers found links between ovaries and a long life.
‘To reach exceptional longevity is to live about 30 percent longer, similar to the difference between a 100-year-old person and a person that would only live, let’s say, 72 years,’ Dr. Waters said. So we are talking about a big difference and that keeping ovaries longer was associated with an increased likelihood of reaching exceptional longevity.’
Being a female, Kona was born with a 2-to-1 advantage over male dogs to reach her 13th birthday.
‘But the interesting part was when we take a look at the dogs who lose their ovaries, the females who lose their ovaries in the first four years, now the female survival advantage disappears,’ Dr. Waters said.
Dr. Waters, whose research work has extended to a variety of complex issues relating to cancer and aging, sums up the bottom line for women:
The takeaway from these studies, including the one with Kona? That doctors and women will pause and question the routine removal of ovaries during a hysterectomy. In the United States, the standard practice for decades has been to remove the ovaries during a hysterectomy to prevent ovarian cancer and maybe some breast cancers that are estrogen-fed.
The findings are something new to add to your plus and minus columns when making a decision with your doctor.