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Brain disorders: Impact of mild SARS-CoV-2 may shrink several parts of the brain
Puranam Revanth Kumar1, B Shilpa1, Rajesh Kumar Jha1
1Department of Electronics and Communication Engineering, IcfaiTech (Faculty of Science and Technology), IFHE University, Hyderabad, India.
Insights
Even mild coronavirus (COVID-19) infection can cause significant brain changes, including shrinkage and tissue damage, impacting cognitive functions and mood for months. Further research into these persistent neurological effects is crucial.
Area of Science:
- Neurology
- Neuroscience
- Infectious Diseases
Background:
- Coronavirus disease (COVID-19), originating in Wuhan, China, has led to a global pandemic with severe health and societal consequences.
- Beyond respiratory symptoms, COVID-19 has been linked to neurological complications, including encephalopathy.
- The long-term neurological and cognitive sequelae of COVID-19 require thorough investigation.
Purpose of the Study:
- To investigate the prolonged neurological clinical consequences and associated brain changes in individuals with mild COVID-19 infection.
- To analyze the impact of COVID-19 on brain structure and function months after initial infection.
Main Methods:
- Comparative analysis of brain imaging data between individuals who tested positive for COVID-19 and a control group.
- Assessment of neurological and cognitive functions in patients post-mild COVID-19.
Main Results:
- Individuals with a history of COVID-19 exhibited greater brain shrinkage, grey matter reduction, and tissue damage compared to controls.
- Neurological damage was concentrated in brain regions associated with olfactory function, cognitive processing, and mood regulation.
- These brain changes and associated symptoms, such as headaches and sensory abnormalities, persisted for several months post-infection.
Conclusions:
- Mild COVID-19 infection can result in persistent, measurable changes in brain structure and function.
- The findings underscore the necessity of monitoring for prolonged neurological signs in patients recovering from COVID-19.
- Further research is warranted to understand the full spectrum of long-term neurological impacts of COVID-19.
Abstract:
Coronavirus (COVID-19) is a highly infectious respiratory infection discovered in Wuhan, China, in December 2019. As a result of the pandemic, several individuals have experienced life-threatening diseases, the loss of loved ones, lockdowns, isolation, an increase in unemployment, and household conflict. Moreover, COVID-19 may cause direct brain injury via encephalopathy. The long-term impacts of this virus on mental health and brain function need to be analysed by researchers in the coming years. This article aims to describe the prolonged neurological clinical consequences related to brain changes in people with mild COVID-19 infection. When compared to a control group, people those who tested positive for COVID-19 had more brain shrinkage, grey matter shrinkage, and tissue damage. The damage occurs predominantly in areas of the brain that are associated with odour, ambiguity, strokes, reduced attention, headaches, sensory abnormalities, depression, and mental abilities for few months after the first infection. Therefore, in patients after a severe clinical condition of COVID-19, a deepening of persistent neurological signs is necessary.
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