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Vancouver biotech company discovering antibodies for COVID-19 treatment – Kamloops This Week

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VANCOUVER — There may be another valuable shield in the fight against COVID-19, and the head of a Vancouver biotech firm says it could buy time as researchers race to develop a vaccine.

Carl Hansen, CEO of AbCellera Biologics Inc., said a drug built with antibodies could be used to protect vulnerable populations until a vaccine is more widely available.

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The antibodies would give patients all the molecular material they need to fight the disease instead of depending on their bodies to develop their own as with a vaccine, giving them faster protection, he said.

“A prophylactic antibody could well be more effective than a vaccine,” he said.

On Sunday, Prime Minister Justin Trudeau announced $175 million federal funding for AbCellera to support its work in discovering those antibodies using a high-tech platform.

The funding also supports the company’s plans to build technology and manufacturing infrastructure for antibody therapies against future pandemic threats.

In partnership with pharmaceutical giant Eli Lilly, AbCellera is among a handful of companies on track for clinical trials this summer.

“There are many groups trying to rapidly develop vaccines for COVID-19 and vaccines are a very important part of the global response,” Hansen said.

“What we’re doing is different. What we’re doing is searching through an immune response that was generated from an actual infection and recovery in a patient and then finding that one antibody out of the literally millions that is best suited to stop the virus and that can be manufactured,” he said.

In 2012, Hansen said AbCellera recognized it could combine technologies from artificial intelligence, genomics, microfluidics and immunology to quickly search through natural immune systems to find antibodies that fight infection.

Two years ago, AbCellera began working with the Defense Advanced Research Projects Agency in the United States as part of a program to “radically accelerate” pandemic response, Hansen said. The company was working on simulations using its antibody-identifying technology when the COVID-19 pandemic struck.

“We quickly pivoted our efforts,” Hansen said.

Using blood samples from one of the first recovered COVID-19 patients in the United States on Feb. 25, AbCellera began screening millions of cells.

It narrowed down 500 unique human antibodies against the virus to a set of 24 that showed high promise of being therapeutic, he said.

“More recently we have further refined that set to a single antibody that is now being manufactured with the objective of having a first in-human trial start in July,” Hansen said.

What typically takes up to five years has been accelerated to less than four months, he said.

Vaccines and antibody-based prevention drugs work differently. With a vaccine, you inject a patient with a weakened virus or part of a virus to stimulate the immune system’s natural production of antibodies. With a prophylactic antibody, you insert the antibodies into the patient, Hansen said.

There are benefits and drawbacks. On one hand, prophylactics create more immediate protection because there’s no waiting period for the body to create its own antibodies. It’s also more broadly effective, because not all patients’ immune systems may be up to the task of producing their own antibodies.

On the other hand, a substantial number of antibodies must be administered to the patient in order to protect them.

“What that means is that the ability to manufacture hundreds of millions or even a billion doses of a vaccine is something well within the realm of possibility today. Making that many doses of antibodies is not,” he said.

That would mean giving the antibody to select groups of people at risk, such as health workers or the elderly, Hansen said.

The World Health Organization recommends that pharmacological treatment for COVID-19 should not be used outside of clinical trials.

On April 27, British Columbia’s COVID-19 therapeutics committee issued the same warning.

“There are no proven therapies for the prevention or treatment of COVID-19. All agents have the possibility of associated harm, and pharmaceutical supplies province-wide and nationally for many of the possible agents are severely limited,” it said.

For Hansen, research and development during the pandemic has not been business as usual.

“It’s not a race against our competitors nearly as much as it’s a race against the virus,” he said.

“What matters most is we get a therapy out there that works for patients and do so as quickly as possible.”

This report by The Canadian Press was first published May 5, 2020.

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Kevin Neil Friesen Obituary 2024 – Crossings Funeral Care

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It is with heavy hearts that we announce the peaceful passing of Kevin Neil Friesen age 53 on Thursday, March 28, 2024 at the Bethesda Regional Health Centre.

A funeral service will be held at 2:00 pm on Thursday, April 4, 2024 at the Bothwell Christian Fellowship Church, with viewing one hour prior to the service.

A longer notice to follow.  

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Spring allergies: Where is it worse in Canada? – CTV News

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The spring allergy season has started early in many parts of Canada, with high levels of pollen in some cities such as Toronto, Ottawa and Montreal.

Daniel Coates, director of Aerobiology Research Laboratories in Ottawa, expects the elevated amounts to continue next week for places, such as most of Ontario, if the temperature continues to rise. Aerobiology creates allergen forecasts based on data it collects from the air on various pollens and mould spores.

Pollens are fertilizing fine powder from certain plants such as trees, grass and weeds. They contain a protein that irritates allergy sufferers.

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Although pollen levels declined after a cold spell in some places, he said they are soaring again across parts of Canada.

“So the worst is definitely British Columbia right now, followed by Ontario and Quebec and then the Prairies and Atlantic Canada for the upcoming weeks,” said Coates in a video interview with CTVNews.ca. “We are seeing pollen pretty much everywhere, including the Maritimes.”

He said pollen has increased over the past 20 years largely due to longer periods of warm weather in Canada.

Meanwhile, the Maritimes is one of the best places to live in Canada if you have seasonal allergies, in part because of its rocky territory, Coates said.

With high levels of cedar and birch pollen, British Columbia is the worst place for allergy sufferers in Canada, he added.

“British Columbia is going strong,” Coates explained, noting the allergy season started “very early” in the province in late January. “It has been going strong since late January, early February and it’s progressing with high levels of pollen, mostly cedar, but birch as well, and birch is highly allergenic.”

Causes of high pollen levels

Coates expects a longer allergy season if the warm weather persists. He notes pollen is increasing in Canada and worldwide, adding that in some cases the allergy season is starting earlier and lasting longer than 15 years ago.

He says tree pollen produced last year is now being released into the air because of warmer weather.

“Mother nature acts like a business,” he said. “So you have cyclical periods where things go up and down. … So when it cooled down a little bit, we saw (pollen) reduce in its levels, but now it’s going to start spiking.”

Along with warmer weather, another factor in higher pollen levels is people planting more male trees in urban areas because they don’t produce flowers and fruits and are less messy as a result, he said. But male trees produce pollen while female ones mostly do not.

Moulds

Coates said moulds aren’t as much of a problem.

“They’ve been mainly at lower levels so far this season,” he explained. “Moulds aren’t as bad in many areas of Canada, but they’re really, really bad in British Columbia.”

In B.C., moulds are worse because of its wet climate and many forested areas, he said.

Coping with allergies

Dr. Blossom Bitting, a naturopathic doctor and herbal medicine expert who works for St. Francis Herb Farm, says a healthy immune system is important to deal with seasonal allergies.

“More from a holistic point of view, we want to keep our immune system strong,” she said in a video interview with CTVNews.ca from Shediac, N.B. “Some would argue allergies are an overactive immune system.”

Bitting said ways to balance and strengthen the immune system include managing stress levels and getting seven to nine hours of restful sleep. “There is some research that shows that higher amounts of emotional stress can also contribute to how much your allergies react to the pollen triggers,” Bitting said.

Eating well by eating more whole foods and less processed foods along with exercising are also important, she added. She recommends foods high in Omega-3 Fatty Acids such as flaxseeds, flaxseed oil, walnuts and fish. Fermented foods with probiotics such as yogurt, kimchi and miso, rather than pasteurized ones, can keep the gut healthy, she added. Plant medicines or herbs such as astragalus, reishi mushrooms, stinging nettle and schisandra can help bodies adapt to stressors, help balance immune systems or stabilize allergic reactions, she said.

To cope with allergies, she recommends doing the following to reduce exposure to pollen:

  • Wear sunglasses to get less pollen into the eyes;
  • Wash outdoor clothes frequently, use outer layers for outside and remove them when you go inside the house;
  • Use air purifiers such as with HEPA (high efficiency particulate air) filters;
  • Wash pets and children after they go outside;
  • Keep the window closed on days with high pollen counts.

Mariam Hanna, a pediatric allergist, clinical immunologist and associate professor with McMaster University in Hamilton, Ont., says immunotherapy can help patients retrain their bodies by working with an allergist so they become more tolerant to pollens and have fewer symptoms.

“Some patients will need medications like over-the-counter antihistamines or speaking with their doctor about the right types of medications to help with symptom control,” she said in a video interview with CTVNews.ca.

Coates recommends people check pollen forecasts and decrease their exposure to pollen since no cure exists for allergies. “The best is knowing what’s in the air so that you can adjust your schedules, or whatever you’re doing, around the pollen levels.”

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Do you need a spring COVID-19 vaccine? Research backs extra round for high-risk groups

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Recent studies suggest staying up-to-date on COVID shots helps protect high-risk groups from severe illness

New guidelines suggest certain high-risk groups could benefit from having another dose of a COVID-19 vaccine this spring — and more frequent shots in general — while the broader population could be entering once-a-year territory, much like an annual flu shot.

Medical experts told CBC News that falling behind on the latest shots can come with health risks, particularly for individuals who are older or immunocompromised.

Even when the risk of infection starts to increase, the vaccines still do a really good job at decreasing risk of severe disease, said McMaster University researcher and immunologist Matthew Miller.

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Who needs another COVID shot?

Back in January, Canada’s national vaccine advisory body set the stage for another round of spring vaccinations. In a statement (new window), the National Advisory Committee on Immunization (NACI) stated that starting in spring 2024, individuals at an increased risk of severe COVID may get an extra dose of the latest XBB.1.5-based vaccines, which better protect against circulating virus variants.

That means:

  • Adults aged 65 and up.
  • Adult residents of long-term care homes and other congregate living settings for seniors.
  • Anyone six months of age or older who is moderately to severely immunocompromised.

The various spring recommendations don’t focus on pregnancy, despite research (new window) showing clear links between a COVID infection while pregnant, and increased health risks. However, federal guidance does note that getting vaccinated during pregnancy can protect against serious outcomes.

Vaccinated people can also pass antibodies to their baby through the placenta and through breastmilk, that guidance states (new window).

What do the provinces now recommend?

Multiple provinces have started rolling out their own regional guidance based on those early recommendations — with a focus on allowing similar high-risk groups to get another round of vaccinations.

B.C. is set to announce guidance on spring COVID vaccines in early April, officials told CBC News, and those recommendations are expected to align with NACI’s guidance.

In Manitoba (new window), high-risk individuals are already eligible for another dose, provided it’s been at least three months since their latest COVID vaccine.

Meanwhile Ontario’s latest guidance (new window), released on March 21, stresses that high-risk individuals may get an extra dose during a vaccine campaign set to run between April and June. Eligibility will involve waiting six months after someone’s last dose or COVID infection.

Having a spring dose is particularly important for individuals at increased risk of severe illness from COVID-19 who did not receive a dose during the Fall 2023 program, the guidance notes.

And in Nova Scotia (new window), the spring campaign will run from March 25 to May 31, also allowing high-risk individuals to get another dose.

Specific eligibility criteria vary slightly from province-to-province, so Canadians should check with their primary care provider, pharmacist or local public health team for exact guidelines in each area.

WATCH: Age still best determines when to get next COVID vaccine dose, research suggests:

 

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Age still best determines when to get COVID vaccines, new research suggests

It’s been four years since COVID-19 was declared a pandemic, and new research suggests your age may determine how often you should get a booster shot.

Why do the guidelines focus so much on age?

The rationale behind the latest spring guidelines, Miller said, is that someone’s age remains one of the greatest risk factors associated with severe COVID outcomes, including hospitalization, intensive care admission and death.

So that risk starts to shoot up at about 50, but really takes off in individuals over the age of 75, he noted.

Canadian data (new window) suggests the overwhelming majority of COVID deaths have been among older adults, with nearly 60 per cent of deaths among those aged 80 or older, and roughly 20 per cent among those aged 70 to 79.

People with compromised immune systems or serious medical conditions are also more vulnerable, Miller added.

Will people always need regular COVID shots?

While the general population may not require shots as frequently as higher-risk groups, Miller said it’s unlikely there will be recommendations any time soon to have a COVID shot less than once a year, given ongoing uncertainty about COVID’s trajectory.

Going forward, I suspect for pragmatic reasons, [COVID vaccinations] will dovetail with seasonal flu vaccine campaigns, just because it makes the implementation much more straightforward, Miller said.

And although we haven’t seen really strong seasonal trends with SARS-CoV-2 now, I suspect we’ll get to a place where it’s more seasonal than it has been.

In the meantime, the guidance around COVID shots remains simple at its core: Whenever you’re eligible to get another dose — whether that’s once or twice a year — you might as well do it.

What does research say?

One analysis, published in early March in the medical journal Lancet Infectious Diseases (new window), studied more than 27,000 U.S. patients who tested positive for SARS-CoV-2, the virus behind COVID, between September and December 2023.

The team found individuals who had an updated vaccine reduced their risk of severe illness by close to a third — and the difference was more noticeable in older and immunocompromised individuals.

Another American research team from Stanford University recently shared the results from a modelling simulation looking at the ideal frequency for COVID vaccines.

The study in Nature Communications (new window) suggests that for individuals aged 75 and up, having an annual COVID shot could reduce severe infections from an estimated 1,400 cases per 100,000 people to around 1,200 cases — while bumping to twice a year could cut those cases even further, down to 1,000.

For younger, healthier populations, however, the benefit of regular shots against severe illness was more modest.

The outcome wasn’t a surprise to Stanford researcher Dr. Nathan Lo, an infectious diseases specialist, since old age has consistently been a risk factor for severe COVID.

It’s almost the same pattern that’s been present the entire pandemic, he said. And I think that’s quite striking.

More frequent vaccination won’t prevent all serious infections, he added, or perhaps even a majority of those infections, which highlights the need for ongoing mitigation efforts.

Lauren Pelley (new window) · CBC News

 

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