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Regenerative medicine (RM) is an interdisciplinary field that uses different approaches to accelerate the repair and regeneration or replace damaged or diseased human cells or tissues to achieve normal tissue function. These approaches include the stimulation of the body's own repair processes, transplantation of progenitor cells, stem cells, or tissues, as well as the use of cells and exosomes as delivery-vehicles for cytokines, genes, or other therapeutic agents. COVID-19 pneumonia is a specific disease consistent with diffuse alveolar damage resulting in severe hypoxemia. Therefore, the most serious cause of death from COVID-19 is lung dysfunction. Here, we consider RM approaches to cure COVID-19 pneumonia based on what RM has so far used to treat lung diseases, injuries, or pneumonia induced by other pathogens. These approaches include stem and progenitor cell transplantation, stem cell-derived exosomes, and microRNAs therapy., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)

The past decade has evidenced numerous developments in the treatment of heart diseases; however many patients with chronic heart failure suffer from low quality of life. Therapeutic methods, including drug-delivery as well as heart transplantation, have been used to improve quality of life. Cell therapy and tissue engineering have been recently introduced to the field of medicine as a novel therapeutic approach. Treatment of heart diseases has seen novel development through the introduction of cell therapy approaches. Based on the evidence, cell therapy has emerged as a promising therapeutic strategy for the treatment of cardiac diseases. Since the first cell transplant to patients, different types of (stem) cells have been studied. This study aims to provide a comprehensive review of different types of cells and their roles in cardiac cell-based therapy., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)