3D Bioprinting for Regenerating COVID-19-Mediated Irreversibly Damaged Lung Tissue.

While the tension of COVID-19 is still increasing, patients who recovered from the infection are facing life-threatening consequences such as multiple organ failure due to the presence of angiotensin-converting enzyme 2 receptor in different organs. Among all the complications, death caused by respiratory failure is the most common because severe acute respiratory syndrome coronavirus 2 infects lung's type II epithelial, mucociliary, and goblet cells that eventually cause pneumonia and acute respiratory distress syndrome, which are responsible for the irreversible lung damage. Risk factors, such as age, comorbidities, diet, and lifestyle, are associated with disease severity.

Omicron variant of SARS-CoV-2: Genomics, transmissibility, and responses to current COVID-19 vaccines.

Currently, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has spread worldwide as an Omicron variant. This variant is a heavily mutated virus and designated as a variant of concern by the World Health Organization (WHO). WHO cautioned that the Omicron variant of SARS-CoV-2 held a very high risk of infection, reigniting anxieties about the economy's recovery from the 2-year pandemic.

Corticosteroids for COVID-19: worth it or not?

Pathogenesis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) induced COVID-19 implied the presence of excessive proinflammatory cytokines and chemokines in patients causing significant morbidity and mortality. To diminish systemic hyper inflammation, a few physicians and researchers have utilized corticosteroids. Corticosteroid implementation has increased after the publication of interim guidelines regarding corticosteroid use in COVID-19 patients by WHO, despite the remaining controversies regarding long-term side effects and disease progression capability of corticosteroids.

Prospect of 3D bioprinting over cardiac cell therapy and conventional tissue engineering in the treatment of COVID-19 patients with myocardial injury.

Due to multiple mutations of SARS-CoV-2, the mystery of defeating the virus is still unknown. Cardiovascular complications are one of the most concerning effects of COVID-19 recently, originating from direct and indirect mechanisms. These complications are associated with long-term Cardio-vascular diseases and can induce sudden cardiac death in both infected and recovered COVID-19 patients.