1.   The endogenous PPT gene or the PPT promoter when linked to a reporter construct is expressed to high levels in cultured adult rat ganglia.

2.   At the University of Florida, Gainesville, researchers led by Drs. Paul Reier and Doug Anderson transplant rat fetal tissue into these cavities in adult rats.

3.   Adult rats separated from their mothers for a few hours each day soon after birth show exaggerated cortisol secretion in response to stress, researchers have found.

4.   Four of the astronauts collaborated in the dissection of nine adult male rats, preserving the brain and other tissues responsible for balance, navigation and coordination of movement.

5.   Fourteen young rats that began the mission at an older age remained healthy as did a small population of adult rats.

6.   It involved adult rats whose spinal cords were completely severed, leaving a gap of about one-fifth of an inch.

7.   The scientists took adult rats whose spinal cords were completely severed, and transplanted nerves from elsewhere in the body.

8.   Two areas in the adult rat brain have these cells, which have not yet specialized into the various types of mature brain cells.