We have used a monoclonal antibody against the murine transferrin receptor to study the expression of the transferrin receptor on the hematopoietic progenitor cells (BFU-E, CFU-E, and CFU-C) present in mouse bone marrow. Elutriation and cell-sorting data are consistent with the hypothesis that most CFU-E are transferrin receptor positive while most BFU-E express much less transferrin receptor. ...

The treatment of acute nonlymphocytic leukemia results in predictable bone marrow hypoplasia and eventual cellular repopulation. In order to study this postchemotherapy repopulation, assays for hematopoietic progenitor cells were performed on bone marrow samples obtained from seven patients with acute nonlymphocytic leukemia who had received similar chemotherapeutic induction regimens. Burst-fo...

We have studied the sensitivities of four hematopoietic stem cell types to heat stress as well as their abilities to develop thermotolerance. Granulocyte-macrophage colony forming units were the most heat resistant bone marrow progenitors tested. Of the erythroid progenitors tested, erythrocyte colony forming units were more resistant than the two more primitive erythrocyte burst forming units....

We have studied the sensitivities of four hematopoietic stem cell types to heat stress as well as their abilities to develop thermotolerance. Granulocyte-macrophage colony forming units were the most heat resistant bone marrow progenitors tested. Of the erythroid progenitors tested, erythrocyte colony forming units were more resistant than the two more primitive erythrocyte burst forming units....

<span lang="EN-US">Colony forming units counting is a conventional process carry out in bacteriological laboratories, and it used to follow the behavior of bacteria different conditions. Currently exist systems, automatic or semi-automatic, colony exits, but, general, many laboratories continue using manual counting, which consumes considerable time effort from researchers laboratory empl...

The various types of chemiluminescent and bioluminescent reactions are described. Applications of luminescence in the analysis of substancs of clinical interest are surveyed. The advantages, disadvantages, and prospects for luminescent assays are discussed.

Erratum Unfortunately, the original version of this article [1] contained an error. There are two references in the text to the threshold for defining VAP as greater than 10^4 colony forming units/ml. These should read greater OR EQUAL to 10^4 colony forming units/ml. The error is in the abstract and in the intervention sections. In the abstract, please replace: Patients with clinically suspect...

Further in vitro studies of hematopoietic regulation were carried out in two patients with polycythemia vera who were also heterozygotes (Gd(B)/Gd(A)) for glucose-6-phosphate-dehydrogenase (G-6-PD). While only G-6-PD type A was detectable in circulating erythrocytes, granulocytes and platelets, cultures of peripheral blood and marrow from one patient revealed a substantial number of G-6-PD type...

The Smurf Assay (SA) was initially developed in the model organism Drosophila melanogaster where a dramatic increase of intestinal permeability has been shown to occur during aging (Rera et al., 2011). We have since validated the protocol in multiple other model organisms (Dambroise et al., 2016) and have utilized the assay to further our understanding of aging (Tricoire and Rera, 2015; Rera et...