Abstract
It has been suggested that increased intramedullary apoptosis may explain the paradox between peripheral blood cytopenias and the hyper- or normo-cellular bone marrow observed in the myelodysplastic syndromes (MDS). We wished to see if culture performance could be related to the presence of apoptotic cells in a group of patients with MDS (12 patients) and other patients with peripheral blood cytopenias (six patients) which caused diagnostic difficulty. There was no correlation between LTBMC or adherent cell growth and the presence of apoptotic cells in the original marrow sample. A variable degree of apoptosis was observed in both groups of patients. LTBMC profiles correlated well with diagnosis but were unrelated to the extent of intramedullary apoptosis. This suggests that apoptosis is a much more ubiquitous process in disease than previously thought.
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