Peripheral Arterial Disease is a disease in which arteries throughout the body are clogged by plaque, calcium or cholesterol. It occurs frequently in aging populations and in tandem with coronary artery disease. Most of the damage happens before a patient is diagnosed.
In March, Dr. Grant Pierce, executive director of research at St. Boniface General Hospital, concluded a two-year, $2 million study into new therapies for Peripheral Arterial Disease patients.
The study followed 250 patients suffering from Peripheral Arterial Disease as they consumed three tablespoons of ground flax daily. Based on animal data, Pierce believes flaxseed can alleviate pain associated with the disease and avert abnormal heart function that could lead to stroke or heart attacks.
By September, about six months after human trials concluded, Pierce hopes to have tangible data showing the effect of flax on human patients.
If successful, the test bodes well for Canada’s flaxseed growers. About 80 per cent of the world’s flaxseed supply comes from Western Canada.
Pierce returned to Canada from a successful post-doc career at the University of California, Los Angeles with an agenda.
“You want to contribute to your home,” says Pierce.
Pierce’s study holds the potential to contribute to human health and economic prosperity in Canada.
Saskatchewan
Canadian Light Source
When the NRU reactor at Chalk River shut down, Canada experienced a drawn out shortage of isotopes. In 2010, the Canadian Government announced a $35 million plan to explore alternative methods of isotope production. The Canadian Light Source, located at the University of Saskatchewan, led the charge with a proposal to develop an isotope production program using an electron linear accelerator.
The Canadian Light Source is one of the largest science projects in Canada. With a price tag of $174 million and five years of construction, it made Canada one of only 15 countries using synchrotron science to investigate matter.
The process uses photoneutron reaction to create isotopes. A linear accelerator propely electrons to nearly the speed of light and collides them with a metal filter, producing x-rays. The x-rays irradiate a target made of molybdenum-100, with each of the the X-rays removing a single neutron from atoms in the metal, making molybdenum-99. The molybdenum target containing both toe 100 and 99 is dissolved in a liquid and shipped to hospitals, and the molybdenum-99 decays to technetium-99m, the isotope useful in medical imaging. Once the molybdenum 99 is removed, the molybdenum-100 is recovered and recycled into additional targets.
The process produces no nuclear waste and limits the amount of isotope lost to decay during transport.
Alberta
Oncolytics and Dr. Matt Coffee
Starting as early as 2013, Calgary-based Oncolytics Biotech Inc. wants to treat cancer with a virus.
Reolysin is the company’s formulation of the human reovirus. The virus is believed to inhabit the respiratory and bowel systems in humans and is found naturally in sewage and water supplies. By age 12, half of all children show evidence of exposure CANADAand almost all people show signs of exposure by adulthood.
During research at the University of Calgary, Dr. Matt Coffee, Chief Scientific Officer at Oncolytics, discovered the virus reproduces particularly well in various cancer cell lines.
Reolysin replicates well in tumour cells bearing an activated Ras pathway, a mutation that may play a role in more than two thirds of all human cancers.
The drug is in human clinical trials alone, as well as in conjunction with chemotherapy and radiation. The company hopes to start clinical trials in as many as 11 countries in the coming months.
British Columbia
Dr. Michael Hayden
Using genetic markers from rare patients with natural insensitivity to pain, Dr. Michael Hayden, Professor in the Faculty of Medicine at the University of British Columbia and Director of the Centre for Molecular Medicine and Therapeutics at the Child & Family Research Institute, developed a therapy to induce insensitivity to pain without the addictive side effects of morphine.
“We recognized early that if we can understand why these patients feel no pain, we may have a new pain treatment for the rest of the population,” says Hayden. “These patients were shown to have a loss of function in a particular gene. So if we caused loss of function in humans with a drug, we could treat pain. Right now we have phase-two clinical data that is very promising.”
Hayden believes the drug development process is flawed, evidenced by substantial drug failures as late as stage-three.
“There’s not sufficient validation of the target to prove that moderation of a target by a certain drug will solve the problem,” he says.
Hayden employs genetic and genomic technologies to validate patient targets before moving a therapy into trials.