Table 2.
Extracts/ partitions/ compounds | CB receptor displacement (%) (10 µg/mL) |
Opioid receptor displacement (%) (10 µg/mL) |
|||
---|---|---|---|---|---|
CB1 | CB2 | δ | κ | μ | |
N. nucifera (white flower) EtOH extract | 17 | 14 | 13 | 46 | - |
N. nucifera (pink flower) EtOH extract | 4 | 7 | 25 | 54 | - |
N. nucifera (white flower) basic CHCl3 partition | - | 5 | 71 | 91 | 91 |
N. nucifera (pink flower) basic CHCl3 partition | 26 | 26 | 53 | 95 | 96 |
N. nucifera (white flower) acidic CHCl3 partition | 2 | 12 | 14 | 18 | 20 |
N. nucifera (pink flower) acidic CHCl3 partition | 37 | 34 | 18 | 15 | 26 |
Fraction G (PA:LA; 63.9:36.1)a | 6 | 12 | 91 | 51 | 87 |
Fraction H (PA:LA; 89.5:10.5)a | 17 | - | 64 | 19 | 24 |
Armepavine (4) | - | 14 | 46 | 66 | 65 |
O-Methylcoclaurine (5) | - | 30 | 49 | 83 | 85 |
N-Methylcoclaurine (6) | - | 13 | 55 | 92 | 83 |
Coclaurine (7) | 15 | 8 | 51 | 91 | 83 |
Neferine (10)b | - | - | 88 | 91 | 93 |
Linoleic acid (LA)b | 30 | 14 | 60 | 19 | 34 |
Palmitic acid (PA)b | 16 | 19 | 57 | 9 | 16 |
LA + PA (1:1 mixture) | 4 | 7 | 96 | 50 | 69 |
CP-55,940b | 96 | 100 | -c | -c | -c |
Naloxone HClb | -c | -c | 100 | 100 | 101 |
Palmitic and linoleic acid mixture analyzed by GC/MS;
Tested at 10 µM,
Not applicable,
-: Not active