Articles: sars-cov-2.
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J. Korean Med. Sci. · Jun 2020
The Burden of Disease due to COVID-19 in Korea Using Disability-Adjusted Life Years.
The world is currently experiencing a pandemic of coronavirus disease 2019 (COVID-19). In Korea, as in other countries, the number of confirmed cases and deaths due to COVID-19 have been rising. This study aimed to calculate the burden of disease due to COVID-19 in Korea. ⋯ This study provided the estimates of DALYs due to COVID-19 in Korea. Most of the disease burden from COVID-19 was derived from YLL; this indicates that decision-makers should focus and make an effort on reducing fatality for preparing the second wave of COVID-19.
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Infection caused by SARS-CoV-2 can result in severe respiratory complications and death. Patients with a compromised immune system are expected to be more susceptible to a severe disease course. In this report we suggest that patients with systemic lupus erythematous might be especially prone to severe COVID-19 independent of their immunosuppressed state from lupus treatment. ⋯ These arguments suggest that inherent epigenetic dysregulation in lupus might facilitate viral entry, viremia, and an excessive immune response to SARS-CoV-2. Further, maintaining disease remission in lupus patients is critical to prevent a vicious cycle of demethylation and increased oxidative stress, which will exacerbate susceptibility to SARS-CoV-2 infection during the current pandemic. Epigenetic control of the ACE2 gene might be a target for prevention and therapy in COVID-19.
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Laboratory testing is an integral diagnostic tool, contributing to 70% of diagnoses in the NHS today. Its use has been steadily increasing despite estimates that ≤40% of blood tests ordered are unnecessary. Understanding blood-testing patterns is a fundamental step to tackling overuse. ⋯ Routine general practice data revealed important trends in blood testing. Trends uncovered can inform innovative and targeted solutions to reduce unnecessary blood testing.
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Since the outbreak of COVID-19 many studies have been published showing possible therapies, here the author discusses the end of stage disease related drugs, like Tocilizumab which is currently being used in ARDS patients. In some patients, disease progression leads to an enormous secretion of cytokines, known as cytokine storm, among those cytokines IL-6 plays an important role. Here the author shows how IL-6 has both pro and anti-inflammatory properties, depending on the pathway of transduction: soluble (trans-signaling) or membrane-related (classic signaling), and suggests how targeting only the pro-inflammatory pathway, with SGP130Fc, could be a better option then targeting them both. Other possible IL-6 pathway inhibitors such as Ruxolitinib and Baricinitib are then analyzed, underlying how they lack the benefit of targeting only the pro-inflammatory pathway.
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Journal of virology · Jun 2020
Computational Inference of Selection Underlying the Evolution of the Novel Coronavirus, Severe Acute Respiratory Syndrome Coronavirus 2.
The novel coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that recently emerged in China is thought to have a bat origin, as its closest known relative (BatCoV RaTG13) was described previously in horseshoe bats. We analyzed the selective events that accompanied the divergence of SARS-CoV-2 from BatCoV RaTG13. To this end, we applied a population genetics-phylogenetics approach, which leverages within-population variation and divergence from an outgroup. ⋯ In practical terms, the level of constraint provides indications about which proteins/protein regions are better suited as possible targets for the development of antivirals or vaccines. We also detected limited signals of positive selection in three viral ORFs. However, we warn that, in the absence of knowledge about the chain of events that determined the human spillover, these signals should not be necessarily interpreted as evidence of an adaptation to our species.