Bone marrow, for example, contains primitive cells that remain throughout life and that if stimulated, can produce new blood cells to repair damaged ones.
32.
All but two wallpaper symmetry groups are described with respect to primitive cell axes, a coordinate basis using the translation vectors of the lattice.
33.
For example, for wallpaper groups the fundamental domain is a factor 1, 2, 3, 4, 6, 8, or 12 smaller than the primitive cell.
34.
Maybe primitive cells from different tissues combine to form the brain, meaning that it is generated from more than one kind of stem cell.
35.
HSPCs are primitive cells capable of self-renewal and initially differentiate into common myeloid progenitor ( CMP ) or common lymphoid progenitor ( CLP ) cells.
36.
For convenience a Bravais lattice is depicted by a unit cell which is a factor 1, 2, 3 or 4 larger than the primitive cell.
37.
Now they have shown that in heart transplant patients, primitive cells from the patient travel to the new heart and grow new muscle and blood vessels.
38.
The researchers found evidence of the primitive cells with stem cell characteristics in the remnants of the old hearts, as well as in the donor hearts.
39.
By using this method, the smallest area ( or volume ) is enclosed in this way and is called the "'Wigner Seitz primitive cell " '.
40.
Anversa said the source of the new growth could be existing heart muscle cells or a primitive cell _ called a stem cell _ in the heart.
