It is this retrograde flow of F-actin, within the growth cone
, that appears to supply the traction needed for the advancement of the growth cone
It also marks the first time aggregate growth cones
were used in FOMC policy deliberations.
The arrival of acetylcholine seems to lead to a rapid influx of calcium into the cell, the appearance of many cellular fingers on the side of the growth cone
facing the needle, and, finally, turning.
Using genetic engineering, he and his colleagues created nematodes whose "touch" neurons make a special receptor protein on their growth cone
This trend continued into the first half of 1990, as growth in depository credit all but ceased--though overall debt growth continued at a moderate pace--and M3 fell well below the lower bound of its annual growth cone
In May, M2 fell to the lower edge of the parallel band associated with its annual target range, and M3 slipped just below the bottom of its growth cone
Because activated FAK is important in cell adhesion, we hope to observe active FAK located within the neurite extensions, primarily in the growth cones
, where it would be important in regulating neurite adhesion and projection.
The investigators report that in lab dishes, the drugs affect nerve cell extensions known as growth cones
by, for example, increasing their size.
New evidence shows that while collapsin repulses some tips, called growth cones
, it attracts others, says Tessier-Lavigne.