Background: Preliminary studies of COVID-19 have provided some evidence that electrolyte disturbances may also be present in patients. In this study we aimed to evaluate the role of the arrival electrolytes and symptoms in prediction of Lung damage in CT scan based on the CO-RADS system. Methods: This was a retrospective cross-sectional analytical study. We included patients with laboratory confirmed COVID-19 infection, June 15 to July 7. Patients were included in study if there were no previous history of kidney disease. Demographic, clinical characteristics, laboratory findings, and CO-RADS High-resolution computed tomography (HRCT) of lung report were collected. Univariate logistic regression was employed first to identify the effective, correlated items. All statistics were performed with SPSS version 18.0. Results: In the current study, 36 (20 male- 16 female) patients with mean age of the 54.7 (STD:17.5) years old were studied. Most common symptom at the arrival was the Fever (52.8%), followed by Fatigue (18%), and dyspnea (44.4%). Computed tomography assessment revealed CO-RADS 2 in 4 (11.1%) patients, CO-RADS 3 in 1 (2.8%), CO-RADS 4 in 20 (55.6%), and CO-RADS 5 in 11 (30.6%) patients. In the comparison with the study groups based on the HRCT status (CO-RADS II,III vs. CO-RADS IV,V), patients with severe HRCT damage had significantly lower level of Phosphorus (P<0.05). Univariate logistic regression analysis showed that only one factors was associated with HRCT damage status (Phosphorus, P=0.040). Phosphorus upper than 4.5 was associated with better HRCT results with OR ratio of 3.71 (X2(1)=5.69; p=0.017). Conclusion: Our study illustrates that higher phosphate levels may be associated with better CT scan of lung outcomes in COVID-19; while hypophosphatemia is associated with severe lung injuries. This could help clinicians to manage hospitalized patients and may link the COVID-19 and parathyroid gland.
Background Given the observed olfactory and gustatory dysfunctions in patients with COVID-19 and recent findings on taste receptors possible important activities in the immune system, we elected to estimate the correlation between COVID-19 mortality and polymorphism of a particular type of bitter taste receptor gene called TAS2R38, in a worldwide epidemiological point of view. Methods Pooled rate of each of the rs713598, rs1726866, rs10246939, and PAV/AVI polymorphisms of the TAS2R38 gene was obtained in different countries using a systematic review methodology and its relationship with the mortality of COVID-19. Data were analyzed by the comprehensive meta-analysis software and SPSS. Results There was only a significant reverse Pearson correlation in death counts and PAV/AVI ratio, p = 0.047, r = −0.503. Also, a significant reverse correlation of PAV/AVI ratio and death rate was seen, r = −0.572 p = 0.021. rs10246939 ratio had a significant positive correlation with death rate, r = 0.851 p = 0.031. Further analysis was not significant. Our results showed that the higher presence of PAV allele than AVI, and a higher rate of G allele than A in rs10246939 polymorphism in a country, could be associated with lower COVID-19 mortality. While assessing all three polymorphisms showed a huge diversity worldwide. Conclusion Due to extraoral activities of bitter taste receptor genes, especially in mucosal immunity, this gene seems to be a good candidate for future studies on COVID-19 pathophysiology. Also, the high worldwide diversity of TAS2R38 genes polymorphism and its possible assassination with mortality raises concerns about the efficiency of vaccine projects in different ethnicities.
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