Biogenic amines in the brain of Manduca sexta during larval-pupal metamorphosis |
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| Affiliation: | 1. Shandong University of Finance and Economics, Jinan, Shandong province, China;2. University of International Business and Economics, Beijing, China;3. School of Accounting, Xijing University, Xi''an, Shaanxi, China;4. Southampton Business School, University of Southampton, Southampton, United Kingdom |
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| Abstract: | 1. The extracts of brains (cerebral ganglion) of the tobacco hornworm larvae contain octopamine, dopamine and 5-hydroxytryptamine, but not norepinephrine via analysis using a 16-channel electrochemical array HPLC system.2. A comprehensive daily analysis reveals the patterns of biogenic amine levels in the brain during larval—pupal metamorphosis.3. Monoamine oxidase-based amine metabolites are not present at detectable levels. N-β-Alanyldopamine is the predominant metabolite of dopamine present in the brain during the postwandering phase of the last larval stadium. |
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