E. S. Atanasova

  • Citations Per Year
Learn More
Single intramural stimulation of the atropinized muscle strip of the guinea pig stomach by square pulses was accompanied by the formation of inhibitory postsynaptic potentials (IPSPs) in the muscle cells and by relaxation of the strip. The mean latent period of the IPSPs was 150±15 msec, and the time for its amplitude to rise and fall was 150±15 and 375±92(More)
Sucrose-gap and microelectrode techniques revealed that the spatial constant (value of electrotonic spread of the slow potential) was greater in fundal portion of stomach with removed body and antral portion than in intact stomach. This finding suggests an increased conductivity of the fundal portion muscle tissue after removal of evacuatory and(More)
In dogs, transection of the gastric wall at the level of incisura angularis, followed by end--to--end anastomosis, was made. The electrodes were implanted into the muscle wall of the two stomach segments. Electrical activity of the stomach wall on the 1st postoperative day showed dissociation in the spike activity between the two segments. 10 days later,(More)
Experiments were carried out on longitudinal and circular smooth-muscle strips isolated from the ileum and colon of healthy dogs (controls) and of dogs with local peritonitis. The changes in the contractile responses of the strips to carbachol administered cumulatively were studied, and the EC50 and pD2 values were calculated from the dose-response curves.(More)
In ten healthy volunteers and ten patients with diseases involving the upper section of the gastrointestinal tract (chronic cholecystitis, chronic gastritis) the electrical activity of the colon is registered noninvasively using skin electrodes to the projection site of sigmoid and colon descendens. Recordings are taken with original gastrograph. Apart from(More)
  • 1