Inhibition of brain FAAH activity by analogues of compound 3 bearing
different substituents on the meta- or para- position of the proximal phenyl
ring; a) Dose-dependent inhibition of brain FAAH activity by
p-hydroxymethyl (21), p-carboxyl
(29), p-sulfate (30) and
m-hydroxy (35) derivatives of compound
3 in Swiss Webster mice; doses were 0.3–75 mg/kg (s.c.);
b) Effects of pharmacological blockade of the Abcg2 transporter (Ko-143, 15
mg/kg, i.p., closed bars) on brain inhibition of FAAH activity caused by a
sub-effective dose (selected from the dose-response study: 3 (25);
21 (10); 29 (40); 30 (75);
35 (40) in mg/kg, s.c., open bars) of analogues of compound
3 bearing different functionalities on the meta- position of
the distal phenyl ring. Results are expressed as mean ± s.e.m. (n = 3-4).
*** P< 0.001, ** P< 0.01
vs non-Ko-143 treated group.