Kidneys with a complete parenchymal bridge in the sinus, which is diagnostic for a duplex collecting system, were also excluded from the study. The children were between 1 month and 18 years old (mean age, 6.1 Â± 5.9 years).he objective of our study was to develop, by use of ultrasound, nomograms of renal parenchymal thickness, medullary pyramid thickness (height), renal length, and the ratio of medullary pyramid thickness to parenchymal thickness in healthy children.
erythropoietin. a glycoprotein hormone secreted by the kidney in the adult and by the liver in the fetus, which acts on stem cells of the bone marrow to stimulate red blood cell production (erythropoiesis).
Red blood cells are an important aspect of life, and erythropoietin is a hormone directly connected to the production and maintenance of these cells. For those wishing to take control over their endocrine health, understanding erythropoietin and its role in the body will help. Erythropoietin, also known as EPO, is a hormone that the kidneys produce to stimulate production and maintenance of crucial red blood cells. The hormone does this in two ways: First, it stimulates bone marrow cells to produce red blood cells. Then, it works to protect the cells from destruction once they are in the body. What does erythropoietin? Erythropoietin stimulates other tissues in the body to produce and protect red blood cells.