Articles: coronavirus.
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Frontiers in immunology · Jan 2020
Excessive Neutrophils and Neutrophil Extracellular Traps in COVID-19.
Background: Cases of excessive neutrophil counts in the blood in severe coronavirus disease (COVID-19) patients have drawn significant attention. Neutrophil infiltration was also noted on the pathological findings from autopsies. It is urgent to clarify the pathogenesis of neutrophils leading to severe pneumonia in COVID-19. ⋯ Increasing neutrophil counts paralleled lesion CT values (slope: 0.8 and 0.3-1.2), reflecting neutrophilia-induced lung injury in severe patients. Transcriptome analysis revealed that neutrophil activation was correlated with 17 neutrophil extracellular trap (NET)-associated genes in COVID-19 patients, which was related to innate immunity and interacted with T/NK/B cells, as supported by a protein-protein interaction network analysis. Conclusion: Excessive neutrophils and associated NETs could explain the pathogenesis of lung injury in COVID-19 pneumonia.
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The outbreak of novel coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread worldwide. Nasopharyngeal swabs are widely used in polymerase chain reaction (PCR) test to detect SARS-CoV-2. ⋯ The usefulness of saliva screening tests is compared to conventional swab tests in this report. The results suggest that saliva could be a reliable sample for detecting SARS-CoV-2.
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Ecancermedicalscience · Jan 2020
EditorialManagement of cervical cancer patients during the COVID-19 pandemic: a challenge for developing countries.
During the COVID-19 pandemic, health services worldwide are going through important adaptations to assist patients infected with COVID-19, at the same time as continuing to provide assistance to other potentially life-threatening diseases. Although patients with cancer may be at increased risk for severe events related to COVID-19 infection, their oncologic treatments frequently cannot be delayed for long periods without jeopardising oncologic outcomes. ⋯ Although cervical cancer is the fourth cause of cancer death among women, it receives little attention from international Oncology societies and scientific research studies. In this review paper, we discuss the cervical cancer landscape and provide specialists recommendations for its management during the COVID-19 pandemic, particularly focused on LMICs' reality.
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Frontiers in immunology · Jan 2020
COVID-19: Underlying Adipokine Storm and Angiotensin 1-7 Umbrella.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the third coronavirus leading to a global health outbreak. Despite the high mortality rates from SARS-CoV-1 and Middle-East respiratory syndrome (MERS)-CoV infections, which both sparked the interest of the scientific community, the underlying physiopathology of the SARS-CoV-2 infection, remains partially unclear. SARS-CoV-2 shares similar features with SARS-CoV-1, notably the use of the angiotensin conversion enzyme 2 (ACE2) as a receptor to enter the host cells. ⋯ We discuss how adipocyte dysfunction leads to a specific immune environment that predisposes obese patients to respiratory failure during COVID-19. We also hypothesize that an ACE2-cleaved protein, angiotensin 1-7, has a beneficial action on immune deregulation and that its low expression during the SARS-CoV-2 infection could explain the severity of infection. This introduces angiotensin 1-7 as a potential candidate of interest in therapeutic research on CoV infections.
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Rev Assoc Med Bras (1992) · Jan 2020
The diagnostic process of covıd-19 in the emergency department: laboratory and ımaging methods.
The 2019 Novel coronavirus disease puts a serious burden on the health system. Therefore, the detection of particularly serious patients at an early stage is extremely important in terms of controlling the outbreak and improving the prognosis. We investigated the role of inflammatory markers studied in patients suspected of COVID-19 at an emergency department in predicting PCR and CT results. ⋯ Laboratory is not specific enough in the pre-diagnosis. In addition, this result does not alter with PCR or CT positivity. However, minimal changes observed in laboratory results may be partially guiding in patients in whom both PCR and CT are positive.