after s.c. administration , the semilogarithmic plots of morphine content ( plasma , brain , cerebrospinal fluid ( csf ) or spinal cord ) and morphine antinociception showed linearity for both sham-operated ( sham ) and adrenalectomized rats ( adx ) , and the regression lines for adx showed leftward shifts ( 1.5-1.9-fold ) compared with those for sham .
C0423896
content
C0006104
brain