Abstract:
:By using an antiserum raised against a crustacean beta-pigment-dispersing hormone (PDH), the distribution and chemical neuroanatomy of PDH-like immunoreactive neurons was investigated in the central nervous system of the gastropod snails, Helix pomatia and Lymnaea stagnalis. The number of immunoreactive cells in the Helix central nervous system was found to be large (700-900), whereas in Lymnaea, only a limited number (50-60) of neurons showed immunoreactivity. The immunostained neurons in Helix were characterized by rich arborizations in all central ganglia and revealed massive innervation of all peripheral nerves and the neural (connective tissue) sheath around the ganglia and peripheral nerve trunks. A small number of Helix nerve cell bodies in the viscero-parietal ganglion complex were also found to be innervated by PDH-like immunoreactive processes. Hence, a complex central and peripheral regulatory role, including neurohormonal actions, is suggested for a PDH-like substance in Helix, whereas the sites of action may be more limited in Lymnaea.
journal_name
Cell Tissue Resjournal_title
Cell and tissue researchauthors
Elekes K,Nässel DRdoi
10.1007/s004410051240subject
Has Abstractpub_date
1999-02-01 00:00:00pages
339-48issue
2eissn
0302-766Xissn
1432-0878journal_volume
295pub_type
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journal_title:Cell and tissue research
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journal_title:Cell and tissue research
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