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• W4367156944 abstract "Introduction. Covid-19 has become a new problem of our time. Incidence in the world is rapidly increasing, and with it, attention to the study of the mechanisms of virus pathogenesis is increasing. New symptoms of SARS-CoV-2 persistence in the human body appear. It has been established that not only respiratory manifestations are observed in infected person, but neurological symptoms are increasingly coming to the fore. The main and common manifestation of Covid-19 infection is a headache in the pre- and post-Covid period. Determining the possible routes of entry of the pathogen into the nerve cell, establishing the specifics of Covid-associated headache remains an urgent problem in medicine. The aim of the study. To analyze the data of the world scientific literature regarding the possible mechanisms of invasion of the SARS-CoV-2 virus into the nervous system and their influence on the development of headache in the pre- and post-covid period. Materials and methods. A retrospective analysis of the literature of scientific databases Scopus, PubMed, MedLines, Web of Science for 2020-2022 was carried out. Results. The latest data of the researchers indicate the neurovirulence of the pathogen. SARS-CoV-2 infects humans using the angiotensin-converting enzyme 2 (ACE2) receptor, which is present in the olfactory region, cerebral cortex, basal ganglia, hypothalamus, brain stem, and endothelial cells. The detailed mechanisms of penetration into the central nervous system (CNS) have not yet been fully understood, but the following transmission routes are considered: through the olfactory nerve, the brain is subsequently affected, the second route is cellular invasion, infected monocytes and macrophages, which are a reservoir for the virus for further distribution to other tissues, the next mechanism is infection of endothelial cells of the blood-brain and epithelial blood-liquid barrier. The researchers explain the mechanism of the appearance of headache due to the direct invasion of the endings of the trigeminal nerve in the nasopharyngeal cavity, which leads to the activation of the trigeminal vascular system. Headache is observed at the beginning of the disease and can last more than 180 days after recovery. It is characterized as bilateral, compressive in nature, lasts for hours, resistant to conventional painkillers, intensifies in the morning, with coughing and physical activity. Conclusions. The SARS-CoV-2 virus causes infection using ACE2 receptors, some of which are localized in different parts of the central nervous system, causing neurological symptoms. Headache is one of the most pronounced symptoms of COVID-19, its characteristics and evolution may reflect various pathophysiological mechanisms, which makes their study necessary for a more thorough understanding of headache in the pre- and post-сovid period and the search for options for its elimination." @default.
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• W4367156944 date "2022-11-28" @default.
• W4367156944 modified "2023-09-30" @default.
• W4367156944 title "Headache on the background of coronavirus infection: features of the clinical picture" @default.
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• W4367156944 doi "https://doi.org/10.26565/2313-6693-2022-45-08" @default.
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