Bicarbonate ion transport by the electrogenic Na + /HCO 3 − cotransporter, NBCe1, is required for normal electrical slow‐wave activity in mouse small intestine

2021 ◽  
Author(s):  
Wenchang Zhao ◽  
Liwen Zhang ◽  
Leonid G. Ermilov ◽  
Maria Gabriela Colmenares Aguilar ◽  
David R. Linden ◽  
...  
Keyword(s):  
Small Intestine ◽  
Ion Transport ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Mouse Small Intestine

scholarly journals Sa1122 – The Electrogenic Na+/HCO3- CO-Transporter (NBCE1/SLC4A4) is Necessary FOR Normal Electrical Slow Wave Activity in the Mouse Small Intestine

2019 ◽  
Vol 156 (6) ◽  
pp. S-276
Author(s):  
Wenchang Zhao ◽  
Leonid Ermilov ◽  
Amelia Mazzone ◽  
Jose M. Silva ◽  
Seth T. Eisenman ◽  
...  
Keyword(s):  
Small Intestine ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Mouse Small Intestine

Characterization of Slow Wave Activity in Ex-vivo Porcine Small Intestine Segments

2021 ◽  
Author(s):  
Nipuni D. Nagahawatte ◽  
Niranchan Paskaranandavadivel ◽  
Leo K. Cheng
Keyword(s):  
Small Intestine ◽  
Slow Wave ◽  
Ex Vivo ◽  
Wave Activity ◽  
Slow Wave Activity

Modelling slow wave activity in the small intestine

2006 ◽  
Vol 242 (2) ◽  
pp. 356-362 ◽  
Author(s):  
Anita Shu-Han Lin ◽  
Martin L. Buist ◽  
Nicolas P. Smith ◽  
Andrew J. Pullan
Keyword(s):  
Small Intestine ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity

scholarly journals Experimental and Automated Analysis Techniques for High-resolution Electrical Mapping of Small Intestine Slow Wave Activity

2013 ◽  
Vol 19 (2) ◽  
pp. 179-191 ◽  
Author(s):  
Timothy R Angeli ◽  
Gregory O'Grady ◽  
Niranchan Paskaranandavadivel ◽  
Jonathan C Erickson ◽  
Peng Du ◽  
...  
Keyword(s):  
Small Intestine ◽  
High Resolution ◽  
Slow Wave ◽  
Automated Analysis ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Analysis Techniques ◽  
Electrical Mapping

A linked oscillator model of electrical activity of human small intestine

1975 ◽  
Vol 229 (2) ◽  
pp. 384-388 ◽  
Author(s):  
BH Brown ◽  
HL Duthie ◽  
AR Horn ◽  
RH Smallwood
Keyword(s):  
Small Intestine ◽  
Electrical Activity ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Electronic Relaxation ◽  
Relaxation Oscillators ◽  
Human Small Intestine ◽  
A Chain ◽  
Frequency Gradient

The electrical slow-wave activity of the human small intestine has been simulated by a chain of 64 coupled electronic relaxation oscillators. The model simulates the frequency gradient of recorded patoentials in the human small intestine and when transected, behaves in a similar way to the transected canine small intestine. The model exhibits a spontaneous effect whereby several adjacent oscillators periodically are in the same state. This effect travels down the model in the time of 20-30 min.

Effect of Ethanol Exposure on Slow Wave Activity and Smooth Muscle Contraction in the Rat Small Intestine

2015 ◽  
Vol 60 (12) ◽  
pp. 3579-3589 ◽  
Author(s):  
Sandeep B. Subramanya ◽  
Betty Stephen ◽  
Soumya S. Nair ◽  
Karl-Herbert Schäfer ◽  
Wim J. Lammers
Keyword(s):  
Smooth Muscle ◽  
Small Intestine ◽  
Muscle Contraction ◽  
Slow Wave ◽  
Smooth Muscle Contraction ◽  
Wave Activity ◽  
Ethanol Exposure ◽  
Slow Wave Activity ◽  
Rat Small Intestine

scholarly journals Motor patterns of the small intestine explained by phase-amplitude coupling of two pacemaker activities: the critical importance of propagation velocity

2015 ◽  
Vol 309 (6) ◽  
pp. C403-C414 ◽  
Author(s):  
Jan D. Huizinga ◽  
Sean P. Parsons ◽  
Ji-Hong Chen ◽  
Andrew Pawelka ◽  
Marc Pistilli ◽  
...  
Keyword(s):  
Small Intestine ◽  
Slow Wave ◽  
Propagation Velocity ◽  
Motor Pattern ◽  
Low Frequency ◽  
Frequency Component ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Motor Patterns ◽  
Phase Amplitude

Phase-amplitude coupling of two pacemaker activities of the small intestine, the omnipresent slow wave activity generated by interstitial cells of Cajal of the myenteric plexus (ICC-MP) and the stimulus-dependent rhythmic transient depolarizations generated by ICC of the deep muscular plexus (ICC-DMP), was recently hypothesized to underlie the orchestration of the segmentation motor pattern. The aim of the present study was to increase our understanding of phase-amplitude coupling through modeling. In particular the importance of propagation velocity of the ICC-DMP component was investigated. The outcome of the modeling was compared with motor patterns recorded from the rat or mouse intestine from which propagation velocities within the different patterns were measured. The results show that the classical segmentation motor pattern occurs when the ICC-DMP component has a low propagation velocity (<0.05 cm/s). When the ICC-DMP component has a propagation velocity in the same order of magnitude as that of the slow wave activity (∼1 cm/s), cluster type propulsive activity occurs which is in fact the dominant propulsive activity of the intestine. Hence, the only difference between the generation of propagating cluster contractions and the Cannon-type segmentation motor pattern is the propagation velocity of the low-frequency component, the rhythmic transient depolarizations originating from the ICC-DMP. Importantly, the proposed mechanism explains why both motor patterns have distinct rhythmic waxing and waning of the amplitude of contractions. The hypothesis is brought forward that the velocity is modulated by neural regulation of gap junction conductance within the ICC-DMP network.

Sa1640 NONINVASIVE MEASUREMENT OF SMALL BOWEL SLOW WAVE ACTIVITY IN NEONATES - A PILOT STUDY

2020 ◽  
Vol 158 (6) ◽  
pp. S-364
Author(s):  
Suseela Somarajan ◽  
Nicole D. Muszynski ◽  
Aurelia s. Monk ◽  
Joseph D. Olson ◽  
Alexandra Russell ◽  
...  
Keyword(s):  
Pilot Study ◽  
Small Bowel ◽  
Slow Wave ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Noninvasive Measurement

Slow Wave Activity Related to Working Memory Maintenance in the N-Back Task

2016 ◽  
Vol 30 (4) ◽  
pp. 141-154 ◽  
Author(s):  
Kira Bailey ◽  
Gregory Mlynarczyk ◽  
Robert West
Keyword(s):  
Working Memory ◽  
Slow Wave ◽  
Time Course ◽  
Relevant Information ◽  
Wave Activity ◽  
Slow Wave Activity ◽  
Response Accuracy ◽  
Functional Neuroanatomy ◽  
Stimulus Interval ◽  
Back Task

Abstract. Working memory supports our ability to maintain goal-relevant information that guides cognition in the face of distraction or competing tasks. The N-back task has been widely used in cognitive neuroscience to examine the functional neuroanatomy of working memory. Fewer studies have capitalized on the temporal resolution of event-related brain potentials (ERPs) to examine the time course of neural activity in the N-back task. The primary goal of the current study was to characterize slow wave activity observed in the response-to-stimulus interval in the N-back task that may be related to maintenance of information between trials in the task. In three experiments, we examined the effects of N-back load, interference, and response accuracy on the amplitude of the P3b following stimulus onset and slow wave activity elicited in the response-to-stimulus interval. Consistent with previous research, the amplitude of the P3b decreased as N-back load increased. Slow wave activity over the frontal and posterior regions of the scalp was sensitive to N-back load and was insensitive to interference or response accuracy. Together these findings lead to the suggestion that slow wave activity observed in the response-to-stimulus interval is related to the maintenance of information between trials in the 1-back task.

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