The subject of the article is to investigate the mechanism of increased reactions by electrical stimulation of the sympathetic nerve. Materials and methods: Experiments on dogs have shown that stimulant reactions during blockade of a-adrenergic by phentolamine and (3-adrenergic receptors with propranolol were completely eliminated by lizer-gol —the blocker of 5-HT12-receptors. Results: Infusion of lizergol did not influence on duodenal motor activity and the function of the vagus nerve. Conclusion: Effector neuron is found out to be serotonergic and its action is provided by 5-HT1 2 receptors
Sveshnikov D.S., Kirichuk V.F., Smirnov V.M., Myasnikov I. L, Kuchuk A.M., Trofimova J.E., Trubetskaya M.A. Study of nerve fibers nature reinforcing duodenal contractions by electrical stimulation of sympathetic nerve // Saratov Journal of Medical Scientific Research, Vol. 7, Issue 3, 2011, pp. 580-583

80 cytological preparations derived by fibrogastroduodenoscopy from 20 patients with cerebrospinal trauma at cervical part level served as the research subject. Dynamics of the progression of acute erosive ulcered lesions of mucous membrane of the upper parts of the gastrointestinal tract was studied on the basis of the cytological analyses of mucous membrane biopsy materials. In the course of our work we used endoscopic (fibrogastroduodenoscopy) and cytological research methods. Cytological analyses of mucous membrane biopsy materials were carried out on the 7th, 14th, 21st and 28th day. Biopsy material cellular composition was evaluated on the grounds of the calculation of neutrophilic leukocytes and epithelial cells with the use of an immersion objective. In so doing we registered neutrophilic leukocyte number for 100 cells and determined neutrophilic and epithelial index. Monitoring of neutrophilic leukocyte number enables to determine presence or absence of inflammatory changes in stomach mucous membrane and duodenum in different periods of cerebrospinal trauma
Norkin I.A., Ulyanov V.Yu., Konyuchenko E.A. Cytological evaluation and prediction of progression of acute erosive ulcered lesions of upper parts of gastrointestinal tract in acute and early periods of cerebrospinal trauma // Saratov Journal of Medical Scientific Research, Vol. 6, Issue 3, 2010, pp. 701-703