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Abstract Differentiation of murine erythroleukaemia cells by various inducers involves a step of irreversible commitment, after which the presence of the inducer is not required for completion of the process. Some cells become partially committed and give rise to differentiated as well as...
Abstract The theory that links cell division in epiphyseal cartilage plates to overall growth of long bones has been extended from linear growth systems to those in which proliferating and hypertrophied cells are not arranged in columns. Consideration has also been given to the analysis of...
Abstract A hypothesis is proposed that the oscillations in blood cell numbers are the result of suppressed productivity of the bone marrow and its ability to satisfy both the demands of the erythroid and myeloid cell lines. The hypothesis is used as the basis for a mathematical model which...
Abstract The intraperitoneal administration of several substances (biliverdin, heat-killed bacteria and diatomaceous earth) to rats caused the prompt appearance of a mitotic wave in the liver. Autoradiographic analysis of livers of treated animals showed no evidence of (3H)-thymidine uptake by...
Abstract The kinetics of ovarian follicle growth and death have been estimated in virgin inbred mice using a compartmental model and data obtained from differential follicle counts in histologically sectioned ovaries. The results showed that both growth and death rates are dependent on stage of...
Abstract A mathematical model of cell renewal in epidermis is proposed for describing how psoriatic lesions might develop, based on available cell kinetic data for normal and psoriatic epidermis. Our simulations clearly demonstrate that an increase in the turnover rate in the germinative cell...
Abstract The proliferation kinetics and population renewal of recombinant interleukin-2 (rIL-2)-induced murine lymphokine activated killers (LAK) arising from splenic precursors was studied. Extensive proliferation has been shown to accompany the de novo generation of LAK cytotoxicity. In this...
Abstract A modification of the conventional grain count halving (GCH) method is presented. By determining the decrease of the mean grain number of all interphase cells in addition to that of all labelled interphase cells on the same autoradiographs, the potential doubling time Tpot (or the cell...
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