Melanin Concentrating Hormone (MCH), a 19 amino acid cyclic peptide, is largely expressed in the hypothalamus. Melanin Concentrating Hormone is implicated in the control of general arousal and goal-orientated behaviours in mammals, and appears to be a key
Potent melanin-concentrating hormone (MCH) receptor agonist (EC50 values are 17 and 54 nM at MCH1 and MCH2 receptors respectively). Displays some selectivity towards MCH1 over MCH2 (Ki values are 0.16 and 34 nM respectively).
Ac-hMCH(6-16)-NH2 shows non-selective agonist activity towards both MCH-1R and MCH-2R, which are human MCH receptors in the brain. The compound effectively binds to and activates these receptors, with IC 50 values of 0.16 nM and 2.7 nM for MCH-1R and MCH-2R, respectively.
The ω-3 polyunsaturated fatty acids (PUFAs) found in fish oils provide cardiovascular benefits. Docosahexaenoic acid (DHA), a C22:6 PUFA, is the most abundant ω-3 fatty acid in neural tissues, especially in the retina and brain. It can be synthesized from other dietary ω-3 PUFAs or taken as a nutritional supplement. Docosahexaenoyl glycine consists of DHA with glycine attached at its carboxy terminus.
OSK-1 is a potent potassium channel blocker belonging to the α-KTx3 toxins. It exhibits IC50 values of 0.6 nM, 5.4 nM, and 0.014 nM for Kv1.1, Kv1.2, and Kv1.3 channels, respectively. Additionally, OSK-1 acts as a moderate blocker of the calcium-activated KCa3.1 channel, with an IC50 of 225 nM. Consequently, OSK-1 finds application as an immunosuppressive drug.