A systematic review of neurological symptoms and brain abnormalities in SARS-CoV-2 infections by Daniel Montoya, Jacobo Albert, Sarah Lopez-Martin

“…Other symptoms included headaches, anosmia and ageusia, facial droop, and paralysis, among others. …”
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Urine amino acid and gamma aminobutyric acid level in COVID 19 patients by Cemal Kazezoglu, Arzu İrvem, Yasemin Tuba Sutasir, Büşra Çakiroglu, Banu Kirgiz, Habip Yilmaz, Ali Kocatas

“…Neurological symptoms can also be seen in the clinical course of the disease, and anosmia is the most common. The main objective of our study was to examine the urinary amino acid profiles of moderately severe patients diagnosed with COVID-19 with a positive RT-PCR test and try to find metabolic changes associated with the infection. …”
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Pharmacovigilance imbalance analysis of VEGFR-TKI-related taste and smell disorders by Zhong-hua Fu, Chenglong Zhao, Yaqin Wang, Lei Zhang, Lei Wang

“…Cabozantinib showed the highest number of reports and strongest correlation with ageusia, taste disorder, parosmia, and anosmia. The study found significant association between the reports of TSDs and the use of VEGFR-TKIs, indicating the monitoring of TSD development and appropriate management in clinical is necessary.…”
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COVID-19 encephalopathy with severe neurological symptoms: a clinical case presentation with literature review by G. Baranauskienė, N. Tutlienė, G. Kaubrys

“…Although SARS-CoV-2 virus is commonly associated with damage to the respiratory system, it has been observed that about half of patients with COVID-19 infection may also develop various neurological symptoms such as anosmia, dysgeusia, headache, myalgia, or dizziness. …”
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Magnetic resonance imaging does not distinguish Kallmann syndrome from normosmic isolated hypogonadotropic hypogonadism by Małgorzata Kałużna, Katarzyna Katulska, Katarzyna Ziemnicka, Pola Kompf, Bartłomiej Budny, Paweł Komarnicki, Michał Rabijewski, Jerzy Moczko, Jarosław Kałużny, Marek Ruchała

“…MRI patterns of the pituitary gland and olfactory system were studied in 46 patients, of whom 29 (63%) were classified on the basis of olfactometry as having Kallmann syndrome (KS) (16 patients with anosmia and 13 patients with hyposmia) and 17 (37%) as having normosmic IHH (nIHH). …”
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A Clinical Monitoring Program of COVID-19 Outpatients: A Prospective Cohort Study by Hossein Kasiri, Cyrus Mahjub, Mohammadreza Mazaeri, Fahimeh Naderi-Behdani, Aliyeh Bazi, Monireh Ghazaeian, Sahar Fallah

“…Forty patients were not symptom-free after the one-month follow-up, and 8 patients (7.6%) were required to revisit without the need for hospitalization. Anosmia (18.1%) and fatigue (17.1%) were the most common persisted symptoms. …”
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Socio-economic inequalities in access to COVID-19 tests in France in 2020: evidence from the EPICOV socio-epidemiological cohort by Pierre-Yves Geoffard, Pierre-Yves Geoffard, Florence Jusot, Antoine Sireyjol, Josiane Warszawski, Nathalie Bajos

“…The first group consisted of individuals who had no close relative test positive but reported experiencing COVID-19-like symptoms, such as cough, fever, dyspnea, or sudden onset of ageusia, dysgeusia, or anosmia (N = 12,729). The second group included individuals, with or without symptoms, who reported that a close relative had tested positive for COVID-19 (N = 5,360).FindingsIn both groups, testing was more frequent among individuals living in urban areas. …”
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NRF2 Antioxidant Response and Interferon‐Stimulated Genes Are Differentially Expressed in SARS‐CoV‐2‐Positive Young Subjects by Walter Toscanelli, Matteo Fracella, Marta De Angelis, Carolina Scagnolari, Leonardo Sorrentino, Elena Piselli, Maria Elena Marcocci, Fabio Midulla, Enrica Mancino, Raffaella Nenna, Laura Petrarca, Anna Teresa Palamara, Guido Antonelli, Alessandra Pierangeli, Lucia Nencioni

“…Interestingly, symptomatic patients with anosmia/ageusia showed pronounced expression of apurinic/apyrimidinic endonuclease1/redox factor 1 (APE1), together with Type I IFNs, ISG56, and the inflammasome component NLRP3. …”
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Dysregulated autoantibodies targeting AGTR1 are associated with the accumulation of COVID-19 symptoms by Dennyson Leandro M. Fonseca, Maj Jäpel, Michael Adu Gyamfi, Igor Salerno Filgueiras, Gabriela Crispim Baiochi, Yuri Ostrinski, Gilad Halpert, Yael Bublil Lavi, Elroy Vojdani, Thayna Silva-Sousa, Júlia Nakanishi Usuda, Juan Carlo Santos e Silva, Paula P. Freire, Adriel Leal Nóbile, Anny Silva Adri, Pedro Marçal Barcelos, Yohan Lucas Gonçalves Corrêa, Fernando Yuri Nery do Vale, Letícia Oliveira Lopes, Solveig Lea Schmidt, Xiaoqing Wang, Carl Vahldieck, Benedikt Fels, Lena F. Schimke, Gustavo Cabral-Miranda, Mario Hiroyuki Hirata, Taj Ali AKhan, Yen-Rei A. Yu, Rodrigo JS Dalmolin, Howard Amital, Aristo Vojdani, Haroldo Dutra Dias, Helder Nakaya, Hans D. Ochs, Jonathan I. Silverberg, Jason Zimmerman, Israel Zyskind, Avi Z. Rosenberg, Kai Schulze-Forster, Harald Heidecke, Rusan Catar, Guido Moll, Alexander Hackel, Kristina Kusche-Vihrog, Yehuda Shoenfeld, Gabriela Riemekasten, Reza Akbarzadeh, Alexandre H. C. Marques, Otavio Cabral-Marques

“…Significant correlations were identified between specific AABs and symptoms such as fever, muscle aches, anosmia, and dysgeusia. Notably, anti-AGTR1 antibodies, which contribute to endothelial glycocalyx (eGC) degradation, a process reversed by losartan, have emerged as strong predictors of core symptoms. …”
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