Kazaryan K V, Simonyan L G, Chibukhchyan R G
Ross Fiziol Zh Im I M Sechenova. 2015 Apr;101(4):433-40.
Simultaneous recording of spontaneous electrical activity was conducted from the ending areas of the ureter (the zone bordered with pyeloureteral anastomosis and bladder, respectively), as well as of the proximal part of the bladder. Normally the activity of the distal ureter zone is a propagating from the perirenal area action potentials with increased amplitude (100 microV). In these conditions from the bladder were recorded action potentials with relatively lower values of amplitude and frequency rhythm (31.9 microV and 17 min(-1), respectively). Isolation of investigating ureter areas from each other and from the bladder leads to the emergence of spike activity in the peribladder area different from that in norm: in the background of oscillating waves arises the action potential. Isolation of the ureter from the bladder also affects the nature of the initial activity. Of all analyzed parameters of activity change (decrease) only the amplitude and the frequency of action potentials reaching respectively 24.5 microV and 14.2 min(-1). The results indicate the presence of different types of autonomous spontaneous activity in the extreme zones of the ureter and bladder. The adjustment of these activity parameters in the areas can be provided by their relationship with each other.
对输尿管末端区域(分别与肾盂输尿管吻合处和膀胱相邻的区域)以及膀胱近端进行自发性电活动的同步记录。正常情况下,输尿管远端区域的活动是来自肾周区域的动作电位的传播,其振幅增加(100微伏)。在这些情况下,从膀胱记录到的动作电位的振幅和频率节律值相对较低(分别为31.9微伏和17次/分钟)。将所研究的输尿管区域彼此以及与膀胱隔离开来,会导致膀胱周围区域出现与正常情况不同的尖峰活动:在振荡波的背景下出现动作电位。将输尿管与膀胱隔离开来也会影响初始活动的性质。在所有分析的活动变化(降低)参数中,只有动作电位的振幅和频率分别达到24.5微伏和14.2次/分钟。结果表明,在输尿管和膀胱的极端区域存在不同类型的自主性自发活动。这些区域活动参数的调节可通过它们彼此之间的关系来实现。