We develop a numerical method for estimating parameters in a structured erythropoiesis model consisting of a nonlinear system of partial differential equations. Convergence theory for the computed parameters is provided. Numerical results for estimating the growth rate of precursor cells as a function of the erythropoietin concentration and the decay rate of erythropoietin as a function of the total number of precursor cells from computationally generated data are provided. Standard errors for such parameters are also given.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.3934/mbe.2008.5.601 | DOI Listing |
Vet Pathol
December 2024
Pfizer Inc., Cambridge, MA.
The kidney plays an important role in iron homeostasis and mesangial cells (MCs) are phagocytic cells important for glomerular homeostasis. Sickle hemoglobin (HbS) modulators are promising clinical candidates for treatment of sickle cell disease. Although they prevent disease pathophysiology of HbS polymerization and red blood cell (RBC) sickling by increasing hemoglobin oxygen affinity, higher oxygen affinity can also cause transient tissue hypoxia with compensatory increases in erythropoiesis and subsequent increases in RBC turnover.
View Article and Find Full Text PDFBackground: Red blood cell (RBC) enucleation is a crucial step in the process of erythropoiesis. By removing the nucleus, RBCs gain greater flexibility, enabling them to traverse narrow capillaries with ease, thereby enhancing the efficiency of oxygen and carbon dioxide transport. This transformation underscores the intricate balance between cellular structure and function essential for maintaining homeostasis.
View Article and Find Full Text PDFExp Hematol
January 2025
Department of Biology, School of Education, Waseda University, Shinjuku-ku, Tokyo, Japan; Integrative Bioscience and Biomedical Engineering, Graduate School of Advanced Science and Engineering, Waseda University, Shinjuku-ku, Tokyo, Japan. Electronic address:
Diversity in the granulocyte repertoire, including neutrophils, basophils, and eosinophils, has been reported in vertebrate species. Medaka fish (Oryzias latipes) have only neutrophils; however, the storage pool of granulopoiesis tissues and the molecular mechanism of granulopoiesis in medaka fish have not been explored. Granulocyte colony-stimulating factor (G-CSF) is a cytokine responsible for neutrophil differentiation, survival, and proliferation.
View Article and Find Full Text PDFChemMedChem
November 2024
Department of Zoology, Uluberia College, University of Calcutta, Uluberia, Howrah, 711315, India.
Here, we present a pleiotropic nanomedicine-a smart, functionalized redox buffering nanoparticle-that may be used to treat hematological diseases, associated splenic hyperplasia, and issues related to restricted erythropoiesis. With a diameter of 5-7 nm, the spherical nanomaterial is made of manganese oxide and citrate. Here, we have produced the novel nanomaterial and, using cutting-edge electron microscopic and spectroscopic techniques, extensively assessed its redox buffering potential in vitro with its structural integrity.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!