Results 11 to 20 of about 43,857 (235)
Primary, Non-Refluxive Megaureters: Ureteral Peristalsis Detected on Initial Ultrasound Is Not a Valid Predictor for Spontaneous Resolution [PDF]
ChildrenBackground/Objectives: Primary non-refluxing megaureters (PM) are common congenital anomalies of the urinary tract. While spontaneous resolution is frequent, reliable non-invasive predictors of outcome are scarce.
Christa Gernhold +3 more
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Weak and absent peristalsis [PDF]
Neurogastroenterology and Motility, 2012 AbstractBackground Weak and absent esophageal peristalsis are frequently encountered esophageal motility disorders, which may be associated with dysphagia and which may contribute to gastroesophageal reflux disease. Recently, rapid developments in the diagnostic armamentarium have taken place, in particular, in high‐resolution manometry with or ...
Mark R Fox
exaly +3 more sources
Mechanics of small intestine motility for oral macromolecular delivery: modelling segmentation versus peristalsis [PDF]
Drug DeliveryIntestinal motility, including peristalsis and segmentation, drives complex fluid movements critical for the oral delivery of biologics and other macromolecules.
Benyamin Naranjani +6 more
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Esophageal acid burden in reflux patients with normal endoscopy: Does esophageal peristalsis matter?
Journal of the Formosan Medical Association, 2022 Background: A majority of patients with gastroesophageal reflux disease (GERD) have normal endoscopy. We aimed to investigate whether esophageal primary and secondary peristalsis influence esophageal reflux parameters in patients with normal endoscopy ...
Ming-Wun Wong +7 more
doaj +1 more source
Science, Engineering and Technology, 2023 This paper emphasized an inclined magnetohydrodynamics (MHD) effects in tapered asymmetric porous channel with peristalsis in the presence of slip boundary conditions. Here we considered the two-dimensional channel with a porous medium.
Anum Tanveer, Sharak Jarral
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Peristalsis by pulses of activity [PDF]
Physical Review E, 2021 Peristalsis by actively generated waves of muscle contraction is one of the most fundamental ways of producing motion in living systems. We show that peristalsis can be modeled by a train of rectangular-shaped solitary waves of localized activity propagating through otherwise passive matter.
Gorbushin, N, Truskinovsky, L
openaire +3 more sources
Differences in the Control of Secondary Peristalsis in the Human Esophagus: Influence of the 5-HT4 Receptor versus the TRPV1 Receptor. [PDF]
PLoS ONE, 2016 Acute administration of 5-hydroxytryptamine4 (5-HT4) receptor agonist, mosapride or esophageal infusion of the transient receptor potential vanilloid receptor-1 (TRPV1) agonist capsaicin promotes secondary peristalsis.
Chih-Hsun Yi +6 more
doaj +1 more source
A Computational Analysis for Active Flow and Pressure Control Using Moving Roller Peristalsis
Computation, 2021 Peristaltic motion arises in many physiological, medical, pharmaceutical and industrial processes. Control of the fluid volume rate and pressure is crucial for pumping applications, such as the infusion of intravenous liquid drugs, blood transportation ...
Iosif Moulinos +2 more
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Frontiers in Physiology, 2023 Gut peristalsis, recognized as a wave-like progression along the anterior-posterior gut axis, plays a pivotal role in the transportation, digestion, and absorption of ingested materials.
Yuuki Shikaya +4 more
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Gastrointestinal Neurons Expressing HCN4 Regulate Retrograde Peristalsis
Cell Reports, 2020 Summary: Peristalsis is indispensable for physiological function of the gut. The enteric nervous system (ENS) plays an important role in regulating peristalsis. While the neural network regulating anterograde peristalsis, which migrates from the oral end
Kensuke Fujii +10 more
doaj +1 more source