Non-alcoholic fatty illness (NAFLD). Octopamine showed a reduction in hepatic histopathology and metabolic benefits, emphasizing its role as a mechanistic fat biomarker of liver with potential therapeutic applications (1).
Octopamine, a trace amine in mammals, is a major neurotransmitter linked to important biological processes in insects (2).
There is a need for safety and efficacy studies in both animals and humans involving the oral administration of p-octopamine (3).
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(1) Brial F, Le Lay A, Hedjazi L, Tsang T, Fearnside JF, Otto GW, Alzaid F, Wilder SP, Venteclef N, Cazier JB, Nicholson JK, Day C, Burt AD, Gut IG, Lathrop M, Dumas ME, Gauguier D. Systems Genetics of Hepatic Metabolome Reveals Octopamine as a Target for Non-Alcoholic Fatty Liver Disease Treatment. Sci Rep. 2019 Mar 6;9(1):3656. doi: 10.1038/s41598-019-40153-0.
(2) Arancibia S, Marambio M, Campusano JM, Fierro A. Modeling of the binding of octopamine and dopamine in insect monoamine transporters reveals structural and electrostatic differences. ACS Chem Neurosci. 2019 Jan 3. doi: 10.1021/acschemneuro.8b00631.
(3) Stohs SJ. Physiological functions and pharmacological and toxicological effects of p-octopamine. Drug Chem Toxicol. 2015 Jan;38(1):106-12. doi: 10.3109/01480545.2014.900069.
Abstract. p-Octopamine occurs naturally in plants, invertebrates and animals with diverse functions and effects. This review summarizes the chemistry, metabolism, receptor binding characteristics, known physiological functions, and pharmacological and toxicological effects of p-octopamine. Databases used included PubMed and Google Scholar Advanced. p-Octopamine binds to neuroreceptors in insects that are not present in humans, while exhibiting poor binding to α-1, α-2, β-1, and β-2 adrenergic receptors in mammalian systems. p-Octopamine modestly binds to β-3 adrenergic receptors and may therefore promote lipolysis and weight loss. p-Octopamine is produced in brain and nerve tissues of mammals and is present and can be measured in the blood of normal human subjects. p-Octopamine is considered to be a CNS stimulant in spite of the fact that it binds poorly to adrenergic receptors. Variations occur in blood levels in association with neurological and hepatic diseases. Its precise role in normal neurophysiology is unclear. No human studies have been reported that demonstrate adverse cardiovascular effects following oral administration. No human studies have examined the effects of p-octopamine on athletic performance or weight loss and weight management. A need exists for both animal and human safety and efficacy studies involving oral administration of p-octopamine.
Octopamine 
