Final answer:
Hemopoietic growth factors such as erythropoietin, thrombopoietin, colony-stimulating factors, and interleukins play a crucial role in the production of blood elements and can alleviate symptoms of genetic disorders like hemophilia by stimulating the production of clotting factors. In cases where bone marrow is compromised, extramedullary hemopoiesis ensures the continued generation of blood components.
Step-by-step explanation:
To determine which form of hemopoiesis can improve the symptoms of each condition, let's first understand that hemopoiesis is the production of the formed elements of blood. For conditions like hemophilia, where there is an inadequate synthesis of clotting factors, the key would lie in increasing the production of these specific proteins. One way this can be addressed is through the use of hemopoietic growth factors that stimulate the production and differentiation of precursor cells into the needed clotting factors.
In conditions where hemopoiesis itself is impaired, such as with bone cancer that destroys the bone marrow, extramedullary hemopoiesis in organs like the liver and spleen can compensate by generating the necessary blood components. Chemical signals such as erythropoietin, thrombopoietin, colony-stimulating factors, and interleukins are central to regulating this process. These growth factors act on hematopoietic stem cells in the bone marrow or extra medullary tissue, prompting them to proliferate and differentiate into the required formed elements of the blood.