Selenium and mercury concentrations in biological samples from patients with COVID-19.

BACKGROUND: Coronavirus disease 2019 (COVID-19) is a systemic disease affecting multiple organs. Furthermore, viral infection depletes several trace elements and promotes complex biochemical reactions in the body. Smoking has been linked to the incidence of COVID-19 and associated mortality, and it may impact clinical effects, viral and bacterial conversion, and treatment outcomes. OBJECTIVES: To study the relationship between severe acute respiratory syndrome coronavirus type 2 and the elemental concentrations of selenium (Se) and mercury (Hg) in biological samples from smokers and nonsmokers infected with the virus and in healthy individuals. METHOD: We evaluated changes in the concentrations of essential (Se) and toxic (Hg) elements in biological samples (blood, nasal fluid, saliva, sputum, serum, and scalp hair) collected from male smokers and nonsmokers (aged 29-59 years) infected with COVID-19 and from healthy men in the same age group. The patients lived in different cities in Sindh Province, Pakistan. The Se and Hg concentrations were determined using atomic absorption spectrophotometry. RESULTS: Se concentrations in all types of biological samples from smokers and nonsmokers with COVID-19 were lower than those of healthy smokers and nonsmokers. Hg concentrations were elevated in both smokers and nonsmokers with COVID-19. CONCLUSIONS: In the current study, persons infected with COVID-19 had higher concentrations of toxic Hg, which could cause physiological disorders, and low concentrations of essential Se, which can also cause weakness. COVID-19 infection showed positive correlations with levels of mercury and selenium. Thus, additional clinical and experimental investigations are essential.

When and which employees feel obliged: a personality perspective of how organizational identification develops / Cuándo están agradecidos los empleados y a qué aspectos: el desarrollo de la identificación con la organización desde la perspectiva de la personalidad

This paper examines the indirect effect of interpersonal and informational justice on organizational identification through psychological contract fulfillment across different levels of equity sensitivity. The data were collected using self-reported measures from 656 permanent employees working in five commercial banks in Pakistan. The statistical results of the study confirmed that the indirect effect of interpersonal and informational justice on organizational identification through psychological contract fulfillment is significant. However, the statistical results of the study also demonstrated that the indirect effect of interpersonal and informational justice does not differ across different levels of equity sensitivity. This study offers some implications for managers to maintain an effective employment relationship with the employees inside the organizations (AU)

Este artículo analiza el efecto indirecto de la justicia interpersonal e informativa en la identificación con la organización a través del cumplimiento del contrato psicológico en los diferentes niveles de sensibilidad a la equidad. Por medio de medidas de autoinforme se recogieron datos de 656 empleados fijos de cinco bancos comerciales de Paquistán. Los resultados estadísticos del estudio confirman que es significativo el efecto indirecto de la justicia interpersonal e informativa en la identificación con la organización a través del cumplimiento del contrato psicológico. No obstante, dichos resultados demuestran también que el efecto indirecto de la justicia interpersonal e informativa no es distinto en los distintos niveles de sensibilidad a la equidad. El estudio propone algunas implicaciones para que los directivos mantengan una relación eficaz de empleo con los empleados en el seno de las organizaciones (AU)