March 28, 2024

Researchers Discover Connection Between Traumatic Brain Injury and Long COVID

The details of the continuing illness, Ron states, are fuzzy. When the severe signs stopped and when the long COVID symptoms began, theres no clear delineation of.
” It never ever actually went away,” he states.
Ron, whose name has been changed for this story, is part of the Linseman Laboratorys study on the long-term brain health impacts of COVID-19 in people with and without traumatic brain injury (TBI).
The lab, which is run by University of Denver College of Natural Sciences and Mathematics teacher Dan Linseman, is part of the Knoebel Institute for Healthy Aging. The labs work concentrates on neuroinflammation, neurodegeneration, neurotrauma and now long-neurological COVID.
Distressing brain injury (TBI) is a form of mental retardation resulting from an unexpected external force or impact that interrupts the typical function of the brain. It can be triggered by events such as falls, car mishaps, sports injuries, or violence, and ranges in intensity from mild concussions to extreme brain damage. TBI might lead to irreversible or temporary cognitive, physical, and psychological problems, with signs including headaches, amnesia, trouble focusing, state of mind swings, and transformed speech or motor functions. Treatment and healing depend on the severity of the injury and may include medical intervention, rehabilitation, and ongoing support.
Allison Grossberg, a fourth-year doctoral student in the cellular and molecular biology program, is leading the research study, which began in 2022 and partners with National Jewish Health and Resilience Code. Grossberg and Linseman desired to understand whether individuals with a history of both brain trauma and COVID-19 have gotten worse long-term neurological and mental symptoms, increased inflammation, or an increased danger of neurodegenerative illness and/or auto-immunity.
” Certain infections like COVID-19 and Lyme illness can lead to inflammation in the brain– so why should they be any various?” Grossberg says..
Far, the Linseman Lab has initial data for 48 of the studys individuals, 28 of whom, like Ron, had COVID-19 and one or more TBIs; 11 had only a TBI; and five had just COVID. And four individuals– the control group– had no history of COVID or TBI.
The study gathers its data through a yearly visit in which participants finish a detailed questionnaire and a cognitive assessment and have actually blood drawn.
Linseman and Grossberg state its possible the findings may change over the five-year research study as more participants are hired. As of now, the initial information is clear: Those with a history of COVID-19 and TBI reported more severe long COVID signs, a greater sign concern, and more regular signs.
For a number of the studys participants who have actually had a concussion, including Ron, its been years because their injury.
” Concussions you get when you are young can cause persistent underlying damage, and some of that damage is likely consistent neuroinflammation,” Linseman states. “For example, we discovered that people who have Lyme illness have a particular cadre of neurological signs, however if they have a history of concussions, those signs are much worse. I think its similar with COVID. These are all neurotropic, so they enter the brain. They trigger inflammation. If they do that on a background of continual persistent neuroinflammation like a history of head injury, it generally becomes a cumulative result on the brain.”.
The research study individuals ranged in age from 18-83. Everybody who reported contracting COVID-19 had mild to moderate signs. Nasal congestion was the most reported, and chest discomfort and tightness were the most serious.
Those who reported having COVID-19 and TBI reported worse depressive symptoms, worse practical results, and increased tiredness.
The research study isnt just taping information through an unique detailed survey. Grossberg and Linseman are likewise analyzing biomarkers from the blood samples of each individual. Every cell in the body secretes lipid vesicles, Grossberg says, which are used to interact with other cells in the body.
” Theyre tagged with little markers that are specific to each cell type that releases them,” Grossberg says. “Inside these little packages are lots of crucial signaling molecules that help us understand whats going on in somebodys brain as opposed to just whats happening in the blood stream.”.
Then researchers can take the vesicles, or exosomes, from each client and breed them with cells grown in the laboratory.
” We anticipate that the exosomes from individuals with history of COVID and TBI bring cargo that might cause an inflammatory action in the cell that is worse compared to exosomes from healthy control participants,” Grossberg states. “We anticipate it to look similar to the inflammatory response in cells exposed directly to a bacterial endotoxin, a lipopolysaccharide, which is known to cause inflammation,” Grossberg states.
According to the preliminary information, exosomes from those who had a combined history of COVID-19 and TBI caused swelling in the lab-grown astrocytes.
Whats more, Linseman states, is the potential link in between age and long COVID. When the research study started, they anticipated that older individuals with a history of concussions would report the worst long COVID symptoms. Up until now in their findings, the opposite is true.
” Thats leading me into supporting the theory with the body immune system and neuroinflammation thats adding to the symptomology,” Linseman says. “The most significant distinction in between older and younger individuals is that more youthful individuals have a more robust immune system.”.
If their hypothesis is appropriate, and theres a neuroinflammatory pathway thats overthrown by COVID and TBI, researchers can start to check out potential treatments, like one that inhibits the inflammatory path.
While that discovery might be years in the making, the Linseman Labs research study is making strides in the ideal direction.
For Ron, a DU graduate who was a partner in a danger management seeking advice from firm, getting involved in this research study suggests something– a tangible method to make an effect.
” If it could be helpful to society in general, not always just me, it would be nice. Who understands if it will keep others from getting it in the future,” Ron says. “I have a lot of time on my hands, may as well utilize it to contribute some good.”.

The Linseman Laboratorys research study examines long-term brain health impacts of COVID-19 in people with and without traumatic brain injury (TBI). The Linseman Laboratory is studying the long-term brain health effects of COVID-19 in individuals with and without distressing brain injury (TBI). 2 years later, hes not able to work as he still suffers from severe fatigue and brain fog– a by-product of his battle with long COVID.
Terrible brain injury (TBI) is a type of brain damage resulting from an unexpected external force or effect that disrupts the regular function of the brain. When the study began, they prepared for that older people with a history of concussions would report the worst long COVID symptoms.

The Linseman Laboratorys research study examines long-lasting brain health effects of COVID-19 in people with and without distressing brain injury (TBI). Initial findings suggest those with a history of both COVID-19 and TBI experience more severe long COVID signs. The study likewise checks out biomarkers in blood samples, indicating that exosomes from these people cause inflammation in lab-grown astrocytes. This research might possibly cause treatments that inhibit the inflammatory pathway.
The Linseman Laboratory is studying the long-term brain health impacts of COVID-19 in people with and without terrible brain injury (TBI). Initial data recommend that those with a history of both COVID-19 and TBI experience more severe long COVID symptoms. The research study is also analyzing blood biomarkers to understand age-related distinctions in long COVID and check out potential treatments targeting neuroinflammatory paths.
In January 2021, Ron Millers life was upended. The then-39-year-old, who described his health at the time as perfectly great, contracted COVID-19. 2 years later, hes unable to work as he still struggles with severe fatigue and brain fog– a by-product of his fight with long COVID.
Rons not alone. In fact, hes among the almost 20% of people whove experienced sticking around COVID-19 symptoms.