Table 1

Brain homogenate levels (nanograms per gram wet tissue) of DA, DOPAC, HVA, noradrenaline (NA), DHPG, and MHPG of both sexes of GBR 12909-treated (20 mg/kg, i.p.) Comt gene-disrupted mice

MaleFemale
WTHETHOMWTHETHOM
Striatum
 DA13,160  ± 60616,051  ± 7431-a 17,184  ± 7361-aa 13,745  ± 78615,886  ± 74216,795  ± 800
 DOPAC501  ± 30859  ± 461-aa 2,743  ± 1191-248 1-249 460  ± 28677  ± 481-a 1-b 2,429  ± 721-248 1-249
 HVA1,840  ± 1071,527  ± 84N.D.1,381  ± 521-bb 1,247  ± 751-b N.D.
 NA59.4  ± 5.659.6  ± 2.777.7  ± 4.71-c 58.4  ± 4.059.0  ± 4.598.8  ± 7.6
 DHPGN.D.N.D.158  ± 5N.D.N.D.143  ± 6
 MHPG61.2  ± 1.766.8  ± 2.5N.D.59.6  ± 2.159.8  ± 1.6N.D.
Cortex
 DA36.8  ± 4.651.0  ± 3.71-a 52.7  ± 3.439.0  ± 2.348.4  ± 2.648.4  ± 3.6
 DOPAC14.4  ± 4.024.3  ± 1.7130.8  ± 9.41-248 1-249 11.4  ± 1.022.1  ± 2.9140.7  ± 17.51-248 1-249
 NA374  ± 21442  ± 15408  ± 15385  ± 14418  ± 13332  ± 201-cc 1-b
 DHPGN.D.N.D.223  ± 7N.D.N.D.197  ± 11
 MHPG48.5  ± 18.447.4  ± 5.8N.D.26.3  ± 3.640.1  ± 10.8N.D.
Hypothalamus
 DA330  ± 21445  ± 37795  ± 1811-a 448  ± 42515  ± 56637  ± 66
 DOPAC108  ± 8206  ± 8792  ± 681-248 1-249 108  ± 5197  ± 22796  ± 511-248 1-249
 HVA315  ± 13252  ± 101-aa N.D.259  ± 121-bb 252  ± 251-aa N.D.
 NA1,419  ± 741,455  ± 831,575  ± 1281,326  ± 931,426  ± 1001,517  ± 114
 DHPGN.D.N.D.482  ± 33N.D.N.D.452  ± 21
 MHPG128  ± 12125  ± 8N.D.100  ± 9106  ± 15N.D.

DHPG levels of WT and HET, and cortical HVA levels were under the detection limit.

    • WT, wild-type; HET, heterozygous; HOM, homozygous; N.D., not detectable.

    • Statistics:

    • 1-a  p < 0.05,

    • 1-aa  p < 0.01, and

    • 1-248  p < 0.001 indicate the difference between the corresponding WT groups.

    • 1-b  p < 0.05 and

    • 1-bb  p < 0.01 indicate the difference between the corresponding male. HOM marked with

    • 1-c  p < 0.05,

    • 1-cc  p < 0.01 and

    • 1-249  p < 0.001 were compared with corresponding HET group. Data are means ± S.E.M. of 8 to 11 animals.