In vitro proliferative and differentiating characteristics of CD133(+) and CD34(+) cord blood cells in the presence of thrombopoietin (TPO) or erythropoietin (EPO). Potential implications for hematopoietic cell transplantation.

We investigated the characteristics of cord blood (CD) CD133(+) and CD34(+) cells, by flow cytometry, clonogenic assays and assessment of the replating ability (area under the curve (AUC)) following 7-day liquid culture in the presence of early acting growth factors and either thrombopoietin (TPO) or erythropoietin (EPO). The CD34(+) population showed a more effective proliferation in all parameters tested and TPO proved to be more effective than EPO. On the contrary, the CD133(+) cell fraction retained and expanded more immature elements in a modest but consistent manner with either TPO or EPO.

Management of childhood diseases during the Byzantine period: V - hydrocephalus.

Hydrocephalus was a recognizable medical problem during the Byzantine period. In the medical texts of the time it was attributed to the pressure that was applied on the newborn's head during labour. The suggested treatments focused on the relief of the symptoms only and surgical methods were believed to be helpful in very rare cases.

Management of childhood diseases during the Byzantine period: IV -- juvenile diabetes mellitus.

Although Byzantine physicians seemed to recognize the clinical entity and the symptoms of juvenile diabetes mellitus very well, they did not mention many details about the treatment of the disease. Most probably they treated the young patients in the same way as the adults. It is worth mentioning that diabetes was considered a difficult medical problem.

Management of childhood diseases during the Byzantine period: III-- respiratory diseases of childhood.

Evidence on herbal, veterinary and chemical substances used in various forms for respiratory problems of childhood such as acute otitis, acute tonsillitis and parotitis was investigated in the Byzantine medical treatizes, from the 4th to the 15th century ad. The problem of asthma in childhood was well known during the Byzantine period. Despite the existent Hippocratic tradition, the physicians of the times developed their own methods of treatment.