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  • 1 I: Laboratory of Comparative Physiology, Institute for Developmental Biology, II: Laboratory of Physiology and Pathology of Brain I: RAS, 26 Vavilov str., Moscow, 119909 Russia, II: Tbilisi State University, 2 University str., Tbilisi, 380043 Georgia
  • | 2 Laboratory of Comparative Physiology, Institute for Developmental Biology RAS, 26 Vavilov str., Moscow, 119909 Russia
  • | 3 Laboratory of Comparative Physiology, Institute of Developmental Biology, Russian Academy of Sciences Vavilova 26, 119991 Moscow, Russia
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In the pond snail Lymnaea stagnalis, D-glucose action was investigated on electrical activity of identified central neurons. In the CNS preparations isolated from specimens that starved for 24-96 h, D-glucose added to a standard or HiDi saline at 500-700 mg/ml effectively hyperpolarized ca. 90% of feeding related neurons B1, SO and CGC. However, not all feeding-related neurons examined were responsive to glucose. Experiments on cells of the serotonergic Pedal A cluster have shown that hyperpolarizing action of D-glucose is retained following complete isolation of «hunger» neurons. Threshold concentration producing 1-3 mV hyperpolarization was ca. 50 mg/ml. The results suggest a direct glucose involvement in the mechanisms that control feeding behavior in Lymnaea.

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Editorial Board

      Csányi, Vilmos (Göd)
      Dudits, Dénes (Szeged)
      Falus, András (Budapest)
      Fischer, Ernő (Pécs)
      Gábriel, Róbert (Pécs)
      Gulya, Károly (Szeged)
      Gulyás, Balázs (Stockholm)
      Hajós, Ferenc (Budapest)
      Hámori, József (Budapest)
      Heszky, László (Gödöllő)
      Hideg, Éva (Szeged)
      E. Ito (Sanuki)
      Janda, Tibor (Martonvásár)
      Kavanaugh, Michael P. (Missoula)
      Kása, Péter (Szeged)
      Klein, Éva (Stockholm)
      Kovács, János (Budapest)
      Brigitte Mauch-Mani (Neuchâtel)
      Nässel, Dick R. (Stockholm)
      Nemcsók, János (Szeged)
      Péczely, Péter (Gödöllő)
      Roberts, D. F. (Newcastle-upon-Tyne)
      Sakharov, Dimitri A. (Moscow)
      Singh, Meharvan (Fort Worth)
      Sipiczky, Mátyás (Debrecen)
      Szeberényi, József (Pécs)
      Székely, György (Debrecen)
      Tari, Irma (Szeged)
      Vágvölgyi, Csaba (Szeged),
      L. Zaborszky (Newark)

 

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Acta Biologica Hungarica
Language English
Size  
Year of
Foundation
1950
Publication
Programme
changed title
Volumes
per Year
 
Issues
per Year
 
Founder Magyar Tudományos Akadémia
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5383 (Print)
ISSN 1588-256X (Online)