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Cannabis extracts may reduce the risk of dying from Covid-19 by preventing the immune system from attacking
- Canadian researchers tested seven cannabis extracts for cytokine levels
- Cytokines are produced naturally by the immune system in response to infection
- But in patients with Covid-19, their immune system produces too many cytokines
- This so-called ‘cytokine storm’ can be fatal and is what is inhibited by three of the cannabis extracts tested
Certain cannabis extracts may reduce the risk of dying from Covid-19 by preventing a patient’s faulty immune system from attacking themselves, research shows.
A “cytokine storm” is a process by which the immune system breaks down and attacks healthy tissue instead of just the virus.
In many severe cases of Covid, this is what proves fatal, and finding a way to mitigate this process has been a priority for doctors.
Today, researchers at the University of Lethbridge studied how plant extracts of Cannabis sativa interact with cytokines.
They found three strains that are very effective in reducing the levels of two of the chemicals that play an integral role in the cytokine storm.
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Specific cannabis extracts may reduce risk of dying from Covid-19 by preventing faulty immune system from inflicting damage (stock)
The researchers have over 200 cannabis variants in their collection and have narrowed that number down to seven for their study, which has yet to be peer reviewed and is being published as a preprint on Research Square.
“In this study, we identified three extracts that are very, very good strains; some strains identified in previous studies were also quite good, ”says Dr. Olga Kovalchuk, co-author of the study.
The strains are known only as the numbers four, eight and 14.
Stopping the cytokine storm has been a priority for researchers since it was first identified in the early days of the pandemic.
It persists even when the virus has been eradicated from the body and leads to acute respiratory distress syndrome (ARDS) which can be a fatal condition.
It can also cause pulmonary fibrosis, which is when the lung tissue is damaged and scarred and therefore unable to function properly.
The study used professionally grown cannabis plants that were carefully extracted and applied to models and the researchers say their results do not mean that smoking marijuana or using CBD oil offers protection against Covid- 19 (stock)
It is a debilitating condition that is difficult to treat, with only a lung transplant providing a cure for patients.
“When we started reading the literature about what makes ARDS” it was very clear that it is driven by the same molecules that are involved in many autoinflammatory and autoimmune diseases, ”said Dr Kovalchuk.
“One of them is interleukin-6 (IL-6) and the other is called tumor necrosis factor alpha (TNF-a).”
In experiments performed on a “ 3D model of human skin tissue, ” designed to mimic the human body, researchers found three cannabis extracts that lowered levels of IL-6 and TNF-a.
The study used professionally grown cannabis plants that were carefully extracted and applied to models, and the researchers say their results do not mean that smoking marijuana or using CBD oil offers protection against it. Covid-19.
Dr Kovalchuk and his team had previously found that chemicals in cannabis could prevent SARS-CoV-2 from infecting human cells.
The next step in the research is to get cannabis treatments into clinical trials to see if they are effective in treating severe Covid-19 patients in intensive care.
Earlier this month, data was released that two anti-inflammatory drugs already used to treat arthritis are effective in stopping the cytokine storm.
In one of the biggest medical breakthroughs of the pandemic, scientists found that the drugs could increase the chances of survival of patients already taking dexamethasone, a steroid that British scientists found could reduce mortality in patients. sickest Covid patients during the summer.
Matt Hancock also described the discovery as “another landmark development in the search for a way out of this pandemic.”
The results come from the REMAP-CAP trial which involved 3,900 people with severe Covid in 15 countries. The drugs, marketed under the brand name Actemra and Kevzara, are given by intravenous infusion over one hour.
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