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. 2011 Mar;336(3):940–951. doi: 10.1124/jpet.110.175117

TABLE 1.

Affinity values (Ki) of MTD analogs, lobeline, MTD, and standard compounds for nicotinic receptors, DAT, SERT, and VMAT2 binding and function

Compound [3H]Nicotine Binding Ki ± S.E.M. [3H]MLA Binding Ki ± S.E.M. DAT [3H]DA Uptake Ki ± S.E.M. SERT [3H]5-HT Uptake Ki ± S.E.M. VMAT2 [3H]DTBZ Binding Ki ± S.E.M. VMAT2 [3H]DA Uptake Ki ± S.E.M.
μM
Nicotine 0.003 ± 0.0002a 0.37 ± 0.08a N.D. N.D. N.D. N.D.
GBR 12909 N.D. N.D. 0.00097 ± 0.0001a N.D. N.D. N.D.
Fluoxetine N.D. N.D. N.D. 0.0065 ± 0.0001a N.D. N.D.
Ro-4-1284 N.D. N.D. N.D. N.D. 0.028 ± 0.003a 0.018 ± 0.002a
Lobeline 0.004 ± 0.0001 6.26 ± 1.30 28.2 ± 6.73 46.8 ± 3.70 2.04 ± 0.26b 1.27 ± 0.46
MTD >100c >100c 0.10 ± 0.01 7.00 ± 1.30 9.88 ± 2.22b 0.46 ± 0.11
UKMH-101 >100 >100 11.5 ± 1.90 0.71 ± 0.09 31.8 ± 5.84 0.88 ± 0.19
UKMH-102 >100 >100 25.1 ± 2.93 1.37 ± 0.09 12.3 ± 4.70 0.22 ± 0.05
UKMH-103 >100 >100 16.2 ± 1.20 2.10 ± 0.51 20.3 ± 3.73 0.79 ± 0.18
UKMH-104 >100 >100 5.25 ± 0.46 2.67 ± 0.51 15.0 ± 5.22 0.88 ± 0.26
UKMH-105 >100 >100 6.27 ± 0.60 18.3 ± 7.50 4.60 ± 1.70 0.22 ± 0.01
UKMH-106 >100 >100 6.90 ± 1.10 20.7 ± 4.90 41.3 ± 14.3 0.32 ± 0.12
UKMH-107 >100 >100 68.2 ± 6.93 0.51 ± 0.05 7.27 ± 2.28 1.03 ± 0.19
UKMH-108 >100 >100 39.0 ± 16.3 0.61 ± 0.08 3.42 ± 0.26 0.33 ± 0.08
UKMH-109 >100 >100 >100 16.3 ± 4.10 91.3 ± 26.2 2.27 ± 1.13
UKMH-110 >100 >100 58.1 ± 18.7 13.4 ± 4.10 10.4 ± 2.62 0.36 ± 0.12
UKMH-111 >100 >100 >100 16.1 ± 2.91 32.6 ± 6.79 3.82 ± 1.99
UKMH-112 >100 >100 5.50 ± 0.26 0.71 ± 0.19 15.5 ± 1.61 0.58 ± 0.08

N.D., not determined. UKMH-110, (3Z,5Z)-1-methyl-3,5-bis(thiophen-3-ylmethylene)piperidine; UKMH-111, (3Z,5Z)-3,5-bis(furan-2-ylmethylene)-1-methylpiperidine.

a

n = 3–4 rats.

b

Data taken from Zheng et al., 2005.

c

Data taken from Miller et al., 2001.