Detection of molecules related to the GABAergic system in a single-cell eukaryote, Paramecium primaurelia

Maria U. Delmonte Corrado, Marzia Ognibene, Francesca Trielli, Huguette Politi, Mario Passalacqua, Carla Falugi

Research output: Contribution to journalArticle


γ-Aminobutyric acid (GABA)-related molecules were identified in Paramecium primaurelia by immunocytochemical methods, and GABAA receptors by their histochemical BODIPY-binding sites. Confocal microscope analysis showed different localizations according to the stages of the developmental cycle. A comparison was made with the cholinergic molecules, such as the acetylcholine biosynthetic enzyme (choline acetyltransferase), in double-labelled cells by confocal microscopy. In vivo experiments suggested the involvement of GABA-related molecules in cell-cell interaction.

Original languageEnglish
Pages (from-to)65-68
Number of pages4
JournalNeuroscience Letters
Issue number1
Publication statusPublished - Aug 23 2002



  • γ-Aminobutyric acid
  • γ-Aminobutyric acid receptor
  • Acetylcholine
  • Cell-cell interaction
  • Choline acetyltransferase
  • GABAse activity

ASJC Scopus subject areas

  • Neuroscience(all)

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