objective: the peroxisome proliferator-activated receptors (ppars) are a group of nuclear receptor proteins whose functions as transcription factors regulate gene expressions. ppars play essential roles in the regulation of cellular differentiation, development, and metabolism (carbohydrate, lipid, protein), and tumorigenesis of higher organisms. this study attempts to determine the effect of b...

U URING the embryonic and fetal development of mammals, erythropoiesis, first localized in the yolk sac, continues in some transitional blood forming organs, such as liver and spleen; only in the second half of the fetal period does erythropoiesis become definitely localized in the bone marrow. The differentiation of erythroid elements is incompletely understood, although extensive work has dem...