To determine if erythropoietin affects megakaryocytopoiesis, we measured acetylcholinesterase (AchE) activity, a marker of the murine megakaryocytic lineage, after the addition of human recombinant erythropoietin to serumless murine bone marrow cultures. Erythropoietin increased AchE activity substantially. Moreover, when the hormone was added to serumless cultures of 426 isolated single megaka...

Methods To determine if erythropoietin affects megakaryocytopoiesis, we measured acetyicholinesterase (AchE) activity, a marker of the murine megakaryocytic lineage, after the addition of human recombinant erythropoietin to serumless murine bone marrow cultures. Erythropoietin increased AchE activity substantially. Moreover, when the hormone was added to seruihless cultures of 426 isolated sing...

BACKGROUND Hemoglobin levels measured after hemodialysis, as compared to hemoglobin levels measured before hemodialysis, are suggested to be a more accurate reflection of the hemoglobin levels between hemodialysis sessions, and to be a better reference point for adjusting erythropoietin dosing. OBJECTIVES The aim of this study was to compare the hemoglobin levels before and after hemodialysis...

Accessible online at: www.karger.com/onk Fax +49 761 4 52 07 14 E-mail [email protected] www.karger.com of the best selling pharmaceutical drugs. The recognition of anemia as an independent predictive factor for cancer treatment and of anemia’s role in the induction of tissue hypoxia – another unfavorable condition – led to widespread preclinical and clinical research aimed at improving can...

Although erythropoietin plays a significant role in human metabolism, relatively little attention has been devoted in scientific literature to its role and mechanisms regulating its secretion in pregnancy. The authors of this article discussed the following issues: - construction, biological role and regulation of erythropoietin secretion, - its extra-hematologic effect, - erythropoietin concen...

Production of immuno and biologically active erythropoietin was documented to occur in the human hepatoblastoma cell line HepG-2. The expression of the erythropoietin gene was further verified by Northern blot analysis using a single stranded RNA probe. In vitro studies showed that erythropoietin production by these cells was not stimulated by hypoxia or cobalt chloride, but was related to the ...

Background—Endogenous erythropoietin is increased in patients with heart failure (HF). Previous small-scale data suggest that these erythropoietin levels are related to prognosis. This study aims to analyze the clinical and prognostic value of erythropoietin levels in relation to hemoglobin in a large cohort of HF patients. Methods and Results—In patients hospitalized for HF, endogenous erythro...

The pharmacokinetics of recombinant human erythropoietin (rHuEpo) administered intravenously has been investigated in a group of five patients with chronic renal failure who were dialysis-dependent. The half-life of circulating erythropoietin decreased from 7.9±OA hr (mean ±SO) at the beginning of treatment to 6.2±O.6 hr after 6 weeks and 5A±O.9 hr after 4 months of treatment. In spite of t...

1. To clarify the relationship between nocturnal oxygen desaturation and erythropoietin production in patients with chronic obstructive pulmonary disease, we determined arterial oxygen saturation and serum immunoreactive erythropoietin levels over 24 h in eight patients with chronic obstructive pulmonary disease and in nine normal subjects. 2. In the normal subjects, there was a significant cir...