Scientist who used dogs in controversial study explains for the first time what was happening

Key scientist at the center of a controversial cardiac study done on dogs Is defending the importance of his work for the first time since London, Ontario. The laboratory was closed and the premier of Ontario threatened to ban dogs in research.

Frank Prieto gave an exclusive interview to CBC London after learning that two separate animal ethics committees had cleared him of all charges of animal abuse.

In August, an article by Bureau of Investigative Journalism And Postmedia revealed that scientists at the Lawson Research Institute were secretly inducing three-hour heart attacks before euthanizing dogs and puppies and removing their hearts for further study.

According to the article citing whistleblowers, research conducted at St. Joseph’s Hospital in London allegedly involved animals being brought to the hospital, hidden in boxes covered with blankets, as loud music was played to suppress their barking.

St. Joseph’s halted Prieto’s research after a public outcry, including from Ontario Premier Doug Ford. who swore to “hunt” Scientists are experimenting on animals. their government too proposed legislation Would ban “invasive medical research” on cats and dogs.

Prieto denied that his work was done in secret, noting that he began using dogs in 1982 to see what happened after a heart attack in the hospital. They suggest that informants do not understand animal behavior, especially after surgery.

“The dogs have been completely sedated. Unlike a human being, who feels great pain when having a heart attack, dogs do not feel pain at all. The dog model shows great promise in understanding diseases like heart attack, what happens after it, and how one recovers. This work is saving many lives.”

Animal model ‘suitable’, investigation finds

an independent review by In September the Animal Care Committee (ACC) of Western University, and the Canadian Council on Animal Care The CCAC found in October that allegations of wrongdoing by Prieto’s laboratory were unfounded, according to a memorandum obtained by CBC News.

both probes This included site visits, review of records, and in-depth interviews with people directly involved in the program. They found that the study did not cause heart failure and the dogs did not feel pain during the procedure.

ACC president Arthur Brown of Western University wrote, “After careful evaluation of the evidence, we report that the research program was fully consistent with its approved AUP (animal use protocol) and followed all regulatory requirements.”

“The animal model was appropriate and the research program made an important contribution to the clinical management of myocardial infarction patients worldwide.”

Following surgery, the university review found that the dogs were actively monitored by a clinical veterinarian at least four times a day from the beginning, and then up to twice a day as recovery progressed. Brown noted that the animals were with other dogs 24/7, and animal care staff interacted with them several times a day to provide them with socialization activities.

The review found that the dogs were well cared for, with proper bedding, toys and nutrition.

I was just devastated and upset that here was the end of something that could have saved so many lives-Frank Prieto, scientist

CBC News contacted Brown for comment, who directed inquiries to Western. A spokesperson confirmed that a review took place but had no further comment.

St Joseph’s Health Care London also launched an external review after the research was finished, and a hospital spokesperson said these findings would be available in the coming weeks.

Why dogs?

Prieto said he is speaking out now because he believes stopping this type of research will prevent progress in the treatment and cure of heart disease.

“We were in In the midst of finding new treatments for heart failure, and there are 750,000 heart failure patients in this country,” he said. “I was just devastated and upset that here was the end of something that could have saved so many lives.”

Prieto explained that dogs were initially used for cardiovascular research in the ’80s because of the limitations of MRI equipment. He said dogs have a greater similarity to the human heart than other animals such as pigs, rats or mice.

Although most of the blood in the human body is delivered by a coronary artery, a secondary artery is responsible for about 20 percent of blood flow, Prieto said. It often takes about two hours for a heart attack to develop in both humans and dogs, he said, making their cardiovascular systems “essentially the same.”

“It is the architecture of the blood vessels that makes the dog the only model to study this technique appropriately,” Prato said, adding that the dogs were not puppies and were full-sized lab-bred dogs.

Prieto’s team will reduce blood flow to the dog’s heart area, similar to what happens during a regular heart attack. They later removed the blockage and restored blood flow.

Prieto said the results have affected his career and personal life, but he is more concerned about its impact on heart patients.

“I understand that dogs have come to be part of our society as companions, and they provide tremendous emotional support to people. Where it gets ugly to me is the fact that now, we’re talking about a dog’s life that is more valuable than a million patients.”