Vassileva P
Acta Physiol Pharmacol Bulg. 1977;3(2):47-53.
The effect of histamine and serotonin is studied on strips of the two smooth-muscle layers from the different sections of the complex stomach. Histamine in concentration of 10(-9) to 10(-4) g/ml has no visible effect on preparations from the rumen and reticulum. In strips from the omasum as well as from the proximal and antral regions of the abomasum inhibitory effect is observed mainly with respect to the spontaneous phasic activity of the strips. Serotonin in concentrations of 10(-8) to 10(-4) g/ml has an excitatory effect in almost all preparations studied. Of the forestomach strips it is mostpronouced in rumen strips. The effect consists in an increase of the tone of the preparations. In the proximal region of the abomasum is effect also consists in a rise of the tone, while in strips from the antral region it causes a rise in the amplitude and frequency of the phasic contractions. Serotonin in the concentrations tested has an inhibitory effect only on omasum preparations.
研究了组胺和血清素对复合胃不同部位的两层平滑肌条的作用。浓度为10（-9）至10（-4）克/毫升的组胺对瘤胃和网胃的标本没有明显作用。在来自瓣胃以及皱胃近端和胃窦区域的条带上，主要观察到对条带自发阶段性活动的抑制作用。浓度为10（-8）至10（-4）克/毫升的血清素在几乎所有研究的标本中都有兴奋作用。在前胃条带中，瘤胃条带的作用最为明显。其作用在于增加标本的张力。在皱胃近端区域，其作用也在于张力升高，而在胃窦区域的条带中，它会导致阶段性收缩的幅度和频率增加。所测试浓度的血清素仅对瓣胃标本有抑制作用。
