The 24-hour excretion of 17-ketosteroids and 17-hydroxycorticosteroids has been estimated in a series of male duodenal ulcer subjects and compared with that of 56 normal male controls. It has been found that both 17-ketosteroid and 17-hydroxycorticosteroid excretion is less in ulcer subjects than in the control group; these differences are not large but in the case of 17-hydroxycorticosteroids ...

In this issue of Blood, Hertlein and colleagues present compelling in vitro and in vivo evidence that the novel HSP90 inhibitor 17-DMAG is a potent and selective killer of CLL cells that mediates its effects through the targeted inhibition of NF-B. Their findings describe a promising new therapeutic approach for the treatment of this disease.