Small trials using younger donors and elderly recipients hint that mesenchymal stem cell transfers might reduce frailty.
January 11, 2002|
The Plasmodium yoelii yoelli genome contains around 35 genes encoding 235 kD rhoptry proteins (Py235) that are involved in erythrocyte invasion and parasite virulence. In the January 11 issue of Science, Preiser et al. describe the transcription pattern of py235 genes during the parasite's life cycle and their role in cell invasion (Science 2002, 295:342-345).Immunofluorescence analysis using antibodies recognizing distinct Py235 proteins revealed differences between pre-erythrocytic and erythro