As the SARS-CoV-2 virus responsible for the COVID-19 disease continues to infect people and claim lives across the globe, scientists and medical professionals are learning more about its impact on patients.
One interesting phenomenon that’s been observed is that some coronavirus patients experience relatively mild to moderate symptoms, while others experience severe, life-threatening problems that can land them in the ER. According to Sharp Health News, the virus itself may not be entirely to blame for this, but rather, an overreaction by the body’s immune system.
When a foreign agent, such as a virus, invades your body, your immune cells secrete cytokines, which are molecules that initiate an immune response. However, in some cases, immune cells continue to secrete cytokines, even after a sufficient immune response has been mounted. This is called a ‘cytokine storm’ and the overproduction of these molecules can cause a harmful inflammatory response in the body.
Certain people are more susceptible to cytokine storms than others; for example, there is evidence that those with genetic mutations in their immune cells are more vulnerable. According to creakyjoints.org, those with autoimmune conditions often have abnormally high levels of these cytokines, which is why autoimmune patients often take immune-suppressing medications. However, a cytokine storm isn’t the same as an autoimmune disease flare, though they can be related.
As detailed by creakyjoints.org, some autoimmune patients end up with cytokine storms unrelated to COVID-19. Dr. Randy Cron, a pediatric rheumatologist and author of the book Cytokine Storm Syndrome commented, “About 10% of patients with juvenile idiopathic arthritis will experience [a cytokine storm]; in some cases, multiple times.”
With regards to COVID-19, which is respiratory in nature, a cytokine storm can gravely impact a patient. Acute lung injury (ALI) is a common consequence of a cytokine storm occurring in the lungs, and if a lung infection is severe, the inflammation will spread to the rest of the body via one’s blood circulation and cause sepsis. In some cases, the immune response to an infection can even be deadly.
That’s why it’s important to ‘calm the storm’ and prevent a cytokine storm before it even happens. One type of treatment being explored for COVID-19 is hydroxychloroquine, which is an antiviral and immunosuppressant drug used to treat malaria and autoimmune diseases like lupus, rheumatoid arthritis (RA) and Sjogren’s. Although the medication is still undergoing clinical trials, many are hopeful that this drug will serve as a treatment to halt the progression of COVID-19.
Besides pharmaceutical therapies, Sharp Health News cites curcumin, a compound found in turmeric, as beneficial for its anti-inflammatory properties. A 2015 study states that in lab experiments, researchers found that curcumin blocked the release of the cytokines that are responsible for inflammation.
All in all, it’s important for autoimmune patients to guard against the coronavirus by adhering to strict hygiene guidelines, such as hand washing thoroughly with soap and water, avoiding close contact with others, and disinfecting surfaces routinely. Remember, prevention is the best form of treatment, and can help those with autoimmune disease to avoid a damaging cytokine storm.