TABLE 2

Regional [35S]TBPS binding to rat brain sections and its modulation by niflumate or furosemide in the presence of 3 μM GABA as revealed by quantitative autoradiography

Values in the presence of niflumate or furosemide are percentages of the corresponding GABA-modulated [35S]TBPS binding value. Values are mean ± S.E. (n = 4).

+ Niflumate + Furosemide
Brain Region 3 μM GABA % of Basal 10 μM 30 μM 100 μM 300 μM 1,000 μM 100 μM
nCi/g % %
Cerebellum 19 ± 2 11 ± 1 104 ± 12 117 ± 11 135 ± 17 114 ± 18 19 ± 3** 334 ± 45**
    Granule cell layer 46 ± 2 31 ± 2 144 ± 8** 160 ± 4** 200 ± 14** 189 ± 8** 54 ± 2** 332 ± 36***
    Molecular layer 6 ± 2 3 ± 1 58 ± 31 49 ± 22 9 ± 6* 1 ± 1* 0 ± 0* 124 ± 27
Cortex 124 ± 18 24 ± 3 85 ± 11 68 ± 10 34 ± 3** 12 ± 1** 1 ± 1** 95 ± 7
Striatum 79 ± 10 31 ± 3 90 ± 7 72 ± 5* 39 ± 2** 10 ± 0** 0 ± 0** 106 ± 8
Thalamus 125 ± 9 29 ± 1 86 ± 6 68 ± 5** 39 ± 2** 20 ± 1** 2 ± 0** 108 ± 8
Hippocampus 35 ± 2 14 ± 1 114 ± 10 104 ± 9 54 ± 2** 17 ± 2** 0 ± 0** 131 ± 12*
Inferior colliculus 319 ± 14 56 ± 2 63 ± 3** 50 ± 3** 25 ± 1** 10 ± 0** 0 ± 0** 87 ± 7
  • * , P < 0.05; **, P < 0.01; ***, P < 0.001, significantly different from the corresponding control values (one-way ANOVA followed by Dunnett's post hoc test for niflumate, Student's t test for furosemide).