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Possible Role of Endocannabinoids in Olfactory and Taste Dysfunctions in COVID-19 Patients and Volumetric Changes in the Brain     
Yazarlar
Prof. Dr. Zafer ERGÜL Prof. Dr. Zafer ERGÜL
Türkiye
Zülal Kaptan
Türkiye
Ayhan Kars
Türkiye
Gülşah Biçer
Türkiye
Çetin Kılınç
Türkiye
Emine Petekkaya
Kastamonu Üniversitesi, Türkiye
Nilay Çöplü
Türkiye
Özet
COVID-19 infection develops neurologic symptoms such as smell and taste loss. We aimed to determine the volumetric changes in the brain and correlation of possible related biochemical parameters and endocannabinoid levels after COVID-19 recovery. Brain magnetic resonance images of recovered COVID-19 patients and healthy volunteers, whose olfactory and gustatory scores were obtained through a questionnaire, were taken, and the volumes of the brain regions associated with taste and smell were measured by automatic and semiautomatic methods. Endocannabinoids (EC), which are critical in the olfactory system, and vitamin B12, zinc, iron, ferritin, thyroid-stimulating hormone (TSH), and thyroxine (T4) levels, which are reported to have possible roles in olfactory disorders, were measured in peripheral blood. Taste and smell disorder scores and EC levels were found to be higher in recovered COVID-19 patients compared to controls. EC levels were negatively correlated with bilateral entorhinal cortex (ENT) volumes in the COVID-19 group. Subgenual anterior cingulate cortex volumes showed correlations with gustatory complaints and ferritin in recovered COVID-19 patients. The critical finding of our study is the high EC levels and negative correlation between EC levels and left ENT volumes in recovered COVID-19 patients. It is possible that ECs are potential neuromodulators in many conditions leading to olfactory disorders, including COVID-19.
Anahtar Kelimeler
Ageusia | Anosmia | COVID-19 | Endocannabinoids | Voxel-based morphometry
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Chemosensory Perception
Dergi ISSN 1936-5802
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q3
Makale Dili İngilizce
Basım Tarihi 10-2022
Cilt No 15
Sayı 2
Sayfalar 135 / 144
Doi Numarası 10.1007/s12078-022-09301-1
Makale Linki https://link.springer.com/article/10.1007/s12078-022-09301-1