Background: A considerable proportion of people experience lingering symptoms after Coronavirus Disease 2019 (COVID-19). The aim of this study was to investigate the frequency, pattern and functional implications of cognitive impairments in patients at a long-COVID clinic who were referred after hospitalisation with COVID-19 or by their general practitioner.
Methods: Patients underwent cognitive screening and completed questionnaires regarding subjective cognition, work function and quality of life. Patients' cognitive performance was compared with that of 150 age-, sex-, and education-matched healthy controls (HC) and with their individually expected performance calculated based on their age, sex and education.
Results: In total, 194 patients were assessed, on average 7 months (standard deviation: 4) after acute COVID-19.44-53 % of the patients displayed clinically relevant cognitive impairments compared to HC and to their expected performance, respectively. Moderate to large impairments were seen in global cognition and in working memory and executive function, while mild to moderate impairments occurred in verbal fluency, verbal learning and memory. Hospitalised (n = 91) and non-hospitalised (n = 103) patients showed similar degree of cognitive impairments in analyses adjusted for age and time since illness. Patients in the cognitively impaired group were older, more often hospitalised, had a higher BMI and more frequent asthma, and were more often female. More objective cognitive impairment was associated with more subjective cognitive difficulties, poorer work function and lower quality of life.
Limitations: The study was cross-sectional, which precludes causality inferences.
Conclusions: These findings underscore the need to assess and treat cognitive impairments in patients at long-COVID clinics.
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http://dx.doi.org/10.1016/j.jad.2022.12.122 | DOI Listing |
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Department of Anesthesiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, No. 197, Ruijn 2 Road, Shanghai 200025, China.
The latest studies have demonstrated that aberrant expression of microRNA-146a is related to cognitive decline. The rs57095329 polymorphism occurring in the miR-146a promoter modulates its expression and causes downstream pathogenicity. A case-control study in a Chinese Han population was established to investigate the genetic association between the miR-146a rs57095329 polymorphism and postoperative cognitive dysfunction (POCD).
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Department of Physiology, Touro College of Osteopathic Medicine, Middletown, USA.
Down syndrome (DS) is a genetic intellectual disorder caused by trisomy of chromosome 21 (Hsa21) and presents with a variety of phenotypes. The correlation between the chromosomal abnormality and the resulting symptoms is unclear, partly due to the spectrum of impairments observed. However, it has been determined that trisomy 21 contributes to neurodegeneration and impaired neurodevelopment resulting from decreased neurotransmission, neurogenesis, and synaptic plasticity.
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Psychiatry, LifeStream Behavioral Center, Leesburg, USA.
Patients with schizophrenia often find themselves in vulnerable situations because their cognitive impairments can make them more susceptible to exploitation and crime. A prevalent misconception is that schizophrenia is synonymous with violence, possibly fueled by selective media coverage that highlights instances of violent crimes involving individuals with schizophrenia. In reality, a large percentage of people with schizophrenia do not display violent behavior.
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Department of Neurobiology, Care Sciences and Society, Division of Neurogeriatrics, Center for Alzheimer Research, Karolinska Institutet, Stockholm, Sweden.
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June 2025
Department of Pharmacy, University of Mountains, P.O. Box 208, Bangangté, Cameroon.
Background And Aim: To date, there is no treatment to prevent the development of temporal lobe epilepsy, the most common form of drug-resistant epilepsy. A recent study revealed the antiepileptic-like effect of the aqueous extract of . Given the potential of this extract, the antiepileptogenic- and learning and memory-facilitating-like effects of the aqueous extract of were assessed using the kainate-induced post- model.
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