Feb 5, 2007 - We previously made the surprising finding that cultures of multipotent precursors can be grown from the dermis of neonatal and adult mammalian skin. These skin-derived precursors (SKPs) display multi-lineage differentiation potential, producing both

Karl J.L Fernandes, Jean G Toma, Freda D Miller

Oct 6, 2015 - Sap transport in trees has long fascinated scientists, and a vast literature exists on experimental and modelling studies of trees during the growing season when large negative stem pressures are generated by transpiration from leaves. Much less

Isabell Graf, Maurizio Ceseri, John M. Stockie

Jun 29, 1993 - Fibroblast growth factors (FGFs) represent a group of polypeptide mitogens eliciting a wide variety of responses depending on the target cell type. The knowledge of the cell surface receptors mediating the effects of FGFs has recently expanded

Aug 16, 2005 - For 30 years there has been experimental work aimed at transplanting islets for the treatment of diabetes with a view to curing the disease and preventing the secondary complications. Many technical difficulties were experienced, first in isolating

Roy Calne

Oct 6, 2017 - Many of the most important evolutionary variations that generated phenotypic adaptations and originated novel taxa resulted from complex cellular activities affecting genome content and expression. These activities included (i) the symbiogenetic

James A. Shapiro

Jun 29, 1995 - Recent work has shown that dyes travelling in the transpiration stream in dicotyledon leaves become concentrated in the vessels of the finest veins where water enters the symplast. Such concentrations are called sumps. Using X-ray microanalysis of

Dec 15, 1987 - Cell-free systems from eggs of the frog Xenopus laevis are able to perform most of the acts of eukaryotic chromosome replication in vitro. This now includes the crucial regulatory step of initiation, which had only been achieved for viral systems

Oct 30, 1995 - During embryogenesis, a single cell gives rise to different cell types, tissues and organs which are arranged in a biologically meaningful context, or pattern. The resulting basic body organization of higher plants, which is expressed in the seedling