erythropoietin (epo) was first known as a factor for red blood cell proliferation and differentiation. recent studies show the effects of epo on immune system. in this study the antihuman leukocyte antibody (anti-hla) titer were determined in five groups of rats, which had been sensitized with human lymphocyte. also, the effects of stimulation's frequency and dose of recombinant human eryt...

The presence of hypoxic areas is a common feature of solid tumors and has been associated with decreased sensitivity of the tumors to radiation therapy and oxygen-dependent chemotherapeutic agents, as well as worsened outcomes, including survival. Anemia is also common in cancer patients and is believed to contribute to tumor hypoxia. Thus, the rationale exists for administering recombinant hum...

UNLABELLED Recombinant human erythropoietin (rHuEpo) increases haemoglobin mass (Hb(mass)) and maximal oxygen uptake (v O(2 max)). PURPOSE This study defined the time course of changes in Hb(mass), v O(2 max) as well as running time trial performance following 4 weeks of rHuEpo administration to determine whether the laboratory observations would translate into actual improvements in running ...

BACKGROUND AND OBJECTIVE Anemia leading to transfusion is probably the most important problem in patients with myelodysplastic syndromes (MDS). Human recombinant erythropoietin (rHuEpo) and granulocyte colony-stimulating factor (G-CSF) have been used to treat patients with anemia of MDS, but fewer than 50% respond. The aim of this work was to evaluate the benefit of rHuEpo +/- G-CSF treatment a...

Chronically anemic baboons on a continuous hydroxyurea regimen were treated with pulsed doses of recombinant human erythropoietin (rHuEpo) to test whether the combination of these two compounds, which individually induce F-cell production, can enhance further F-cell output. A low-F-cell-responding animal under chronic hydroxyurea treatment was given three separate pulses of Epo and responded wi...

We present here a novel conjugated aptamer-gold nanoparticle (Apt-AuNPs) fluorescent probe and its application for specific detection of recombinant human erythropoietin-α (rHuEPO-α). In this nanobiosensor, 12 nm AuNPs function as both a nano-scaffold and a nano-quencher (fluorescent energy acceptor), on the surface of which the complementary sequences are linked (as cODN-AuNPs) and pre-hybridi...

A direct detection method for anti-doping control of recombinant human erythropoietin (rHuEPO) abuse in racehorses is proposed. This method involves screening of plasma (or serum) by an enzyme-linked immunosorbent assay specific for human EPO and confirmation in urine samples by characterization of the urinary EPO isoelectric profile. This method was tested on horses that were administered epoe...

In this study we determined the levels of circulating soluble transferrin receptor (sTfR) in six untransfused and two transfused patients affected by beta-thalassemia intermedia during low-dose rHuEPO administration. While the majority of the untransfused patients showed a temporary increment during the first month of treatment, a higher and enduring increase in sTfR concentration was observed ...

Sir, A recent review of recombinant human erythropoietin (rHuEPO)-associated pure red cell aplasia (PRCA) cautioned re-challenge with the same or alternative rHuEPO products in the face of continued anaemia in patients with end-stage renal failure [1]. The mainstay of treatment should involve withdrawal of epoetin therapy, immunosuppression and supportive correction of anaemia with blood transf...

Patients with thalassemia major are considered to have high erythropoietin (Epo) activity.' However, Hammond et a1 reported that thalassemic patients had much less serum Epo activity compared with patients with hypoplastic anemia.* Determination of serum Epo levels in 32 patients from our clinic with homozygous p-thalassemia major and intermedia showed that Epo activity was not significantly hi...