Trematodes are important in economic and public health. Ornithobilharzia turkestanicum (O. turkestanicum) is one of the important economic trematodes in domestic animals. Ornithobilharzia infection in intermediate host (Lymnaea gedrosiana ) can be detected by either exposing snails to light to induce cercarial shedding or by squeezing them between glass slides to detect parasites. The current...

ingestion of infective metacercariae, attached to watercress or other various species of water and terrestrial plants, has been implicated as the main source of human contamination by fasciolid flukes. presence of several species of aromatic wild grown plants, which are eaten fresh on the table or used for preparation of some plant-made foods (delar, mixture of salt and ground local plants, as ...

A novel G-protein-coupled receptor (GRL106) resembling neuropeptide Y and tachykinin receptors was cloned from the mollusc Lymnaea stagnalis. Application of a peptide extract from the Lymnaea brain to Xenopus oocytes expressing GRL106 activated a calcium-dependent chloride channel. Using this response as a bioassay, we purified the ligand for GRL106, Lymnaea cardioexcitatory peptide (LyCEP), an...

The present work aimed at studying the effect of Ambrosia maritima (Damsissa) on the viability of Lymnaea snails. Lymnaea snails used in these trials were acclimatized to laboratory conditions before use in the toxicity test. The snails were exposed to various concentrations (100-3000 mg/l) of dry powdered Damsissa, Ambrosia maritima was lethal to Lymnaea snails at concentration of 3000 mg/L af...

background: freshwater pulmonate family lymnaeidae are well-known for their role in transmission of diginean trematodes worldwide. objectives: the study was aimed to investigate the ecology and effects of physical and chemical components of the environment on their distribution and populaion density. methods: the lymnaeid snails were randomly collected from 16 freshwater habitats in west azarba...

The pond snail Lymnaea stagnalis is among several mollusc species that have been well investigated due to the simplicity of their nervous systems and large identifiable neurons. Nonetheless, despite the continued attention given to the physiological characteristics of its nervous system, the genetic information of the Lymnaea central nervous system (CNS) has not yet been fully explored. The abs...

Neuropeptides are known to be important signaling molecules in several neural systems of the pond snail Lymnaea stagnalis. Although the functions of these peptides have been studied in many neurons, the nature of the postsynaptic signal transduction is mainly unknown. The cloning and characterization of neuropeptide receptors in Lymnaea thus would be very valuable in further elucidating peptide...

interacting neuronal networks make adaptive behavioral decisions. Further new avenues opened up by recent work on Lymnaea may lead to an understanding of how learning and homeostatic processes interact, to the building of sophisticated computer models of functional connectivity and interacting networks, and even to the development of applications to artificial complex systems. At a different le...