Question

help please!!

21) "The paradigm that the adult heart is a post mitotic organ was established in the 1970s. Later, this concept was changed because of the growing body of evidence challenging this traditional view. In adults, myocardium can regenerate from the cardiac stem cells that enter the cell cycle, contributing to changes in the myocardial mass. A low level of cardiomyocyte renewal may occur throughout life, which may be in response to cardiac stem cell activity or migration of stem cells from distant tissues. Such repair following myocardial infarction is grossly inadequate to compensate for the severe loss of functional cardiomyocytes. Existing therapies lower the early mortality rates, prevent additional damage to the heart muscle, and reduce the risk of further heart attacks. However, there is need for a treatment to improve the clinical conditions by replacing the damaged heart cells. Thus, the cardiac tissue regeneration with the application of stem cells may be an effective therapeutic option." How would you classify the cardiac stem cells? a) Labile b) Stable c) Permanent obna bohow. ort owwe 22) Overall, how would you qualify the regenerative capacity of the adult heart? va) High b) Very limited en los colon ne in c) Normal Otello lobbyisme et loire

Answer 1

21, Cardiac stem cells are tissue-specific and have more definite features. It has stable benefits on contract function and remodeling the infarcted heart. cardiac stem cells have potential sources for myocardium regeneration and have therapeutic values. it has a stable benefit outcome and an impact on ventricular remodeling associated with cardiogenesis in the infarct heart. Stem cells therapy in heart failure regenerate smooth muscle and endothelial tissue, contractibility performance, elastic stability. cardiac stem cells oxidative has optimum for controlling genetic stability. reactive nitrogen oxide chemically reaches the byproduct of aerobic metabolism.
22, b, very limited
The adult heart has a low regenerative capacity, it has regenerate capacity to complete the regeneration it takes 5 years or more after heart injury. Human cardiomyocytes have high polyploidy during growth in disease heart. It generates new myocytes after cardiac injury and has low hemostasis.