Immunocytochemical study of serotonin and neuropeptide in the nervous system of cercariae – Metorchis bilis and Sanguinicola armata

Abstract

Neurotransmitters serotonin and neuropeptide FMRFamide were visualised by immunocytochemically in the nervous system of two cercariae – Metorchis bilis (Opisthorchidae) and Sanguinicola armata (Sanguinicolidae). The investigated compounds were demonstrated in the central and peripheral nervous system of cercariae. The obtained results and literature data on the presence and distribution of the studied neurotransmitters in different representatives of cercariae are analyzed.

Keywords

• trematodes
• cercariaes
• nervous system
• neuromediators
• serotonin
• neuropeptides