Academic literature on the topic 'Colon myenteric plexus'

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Journal articles on the topic "Colon myenteric plexus"

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Schusser, Gerald F., and Nathaniel A. White. "Morphologic and quantitative evaluation of the myenteric plexuses and neurons in the large colon of horses." Journal of the American Veterinary Medical Association 210, no. 7 (1997): 928–34. http://dx.doi.org/10.2460/javma.1997.210.07.928.

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Objective— To determine the number of myenteric plexuses and neurons in the large colon of clinically normal horses and whether the number was decreased in the large colon of horses with colon disease. Design— Prospective study. Sample Population— Colon samples from 15 clinically normal horses and 31 horses with colon disease. Procedure— Samples were obtained, fixed, and stained with H&E. The number of myenteric plexuses and neurons and longitudinal muscle thickness were determined in each segment of colon for clinically normal horses. Counts for segments were compared with each other and
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Meier-Ruge, William A., and Luzia A. Brunner. "Morphometric Assessment of Hirschsprung's Disease: Associated Hypoganglionosis of the Colonic Myenteric Plexus." Pediatric and Developmental Pathology 4, no. 1 (2001): 53–61. http://dx.doi.org/10.1007/s100240010115.

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At present, there are no generally acceptable criteria for the evaluation of hypoganglionosis of the myenteric plexus. The aim of this morphometrical investigation was to examine the most important quantitative characteristics of hypoganglionosis. Colon specimens from 35 children with Hirschsprung's disease were assessed morphometrically. Twenty specimens with Hirschsprung's disease and proximal hypoganglionosis of the myenteric plexus were compared with 15 specimens with Hirschsprung's disease and normal innervation in the proximal myenteric plexus. All native surgical specimens were caudocra
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Hagger, Robert, Sussan Gharaie, Caroline Finlayson, and Devinder Kumar. "Regional and transmural density of interstitial cells of Cajal in human colon and rectum." American Journal of Physiology-Gastrointestinal and Liver Physiology 275, no. 6 (1998): G1309—G1316. http://dx.doi.org/10.1152/ajpgi.1998.275.6.g1309.

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The interstitial cells of Cajal (ICC) are thought to play an important role in the control of gut motility. The regional and transmural pattern of distribution of ICC in the normal human colon and rectum was evaluated with immunohistochemistry using an anti-c- kit antibody. The transmural distribution of ICC was constant throughout the whole colon, the density of ICC was significantly greater at the myenteric plexus than at either the longitudinal or circular muscle layers, and in the rectum the transmural distribution was more even. Regionally, at the myenteric plexus, the transverse colon ha
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Adad, Sheila Jorge, Renata Margarida Etchebehere, and Alessandro Adad Jammal. "BLOOD VESSELS IN GANGLIA IN HUMAN ESOPHAGUS MIGHT EXPLAIN THE HIGHER FREQUENCY OF MEGAESOPHAGUS COMPARED WITH MEGACOLON." Revista do Instituto de Medicina Tropical de São Paulo 56, no. 6 (2014): 529–32. http://dx.doi.org/10.1590/s0036-46652014000600013.

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This study aimed to determine the existence of blood vessels within ganglia of the myenteric plexus of the human esophagus and colon. At necropsy, 15 stillborns, newborns and children up to two years of age, with no gastrointestinal disorders, were examined. Rings of the esophagus and colon were analyzed and then fixed in formalin and processed for paraffin. Histological sections were stained by hematoxylin-eosin, Giemsa and immunohistochemistry for the characterization of endothelial cells, using antibodies for anti-factor VIII and CD31. Blood vessels were identified within the ganglia of the
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Mandić, P., T. Filipović, N. Đukić, and V. Nedeljković. "MORPHOMETRIC AND STEREOLOGICAL ANALYSIS GANGLION STRUCTURES OF MYENTERIC NERVE PLEXUS, TERMINALLY PART OF HUMAN LARGE INTESTINE." Praxis medica 37, no. 2 (2009): 13–17. http://dx.doi.org/10.70949/pramed200902289m.

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<p>Myenteric nervous plexus is from rare importance for function of gastrointestinal tract. It perform one regulatory level autonomic nervous system which is situated within wall of digestive tract wherefore is directly exposed effect pathogenetic factors from extern ambiance. Aim of these study is that itself within terminal part of large intestine (sigmoid colon and rectum) particulary inquest myentric nervous plexus as part of autonomic nervous system. That itself describe shape and arrangement of ganglion structures, as well as, shape and arrangement of ganglion cells of myen
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Berezin, I., J. D. Huizinga, and E. E. Daniel. "Structural characterization of interstitial cells of Cajal in myenteric plexus and muscle layers of canine colon." Canadian Journal of Physiology and Pharmacology 68, no. 11 (1990): 1419–31. http://dx.doi.org/10.1139/y90-216.

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We have carried out a detailed ultrastructural study of the interstitial cells near the myenteric plexus of the canine colon and defined the structural characteristics which distinguish them from other resident non-neural cells. We have also examined the interconnections of these interstitial cells with nerves, the longitudinal muscle, and the circular muscle. In addition, we sought connections between interstitial cells of the myenteric plexus and those described earlier at the inner border of the circular muscle in proximal and distal colon. The interstitial cells of the myenteric plexus wer
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Wu, Luyao, Lei Xiang, Yingjian Chen, et al. "Three distinct classes of myenteric ganglia in mice and humans: insights from quantitative analyses." PeerJ 13 (April 24, 2025): e19329. https://doi.org/10.7717/peerj.19329.

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Background The myenteric plexus primarily consists of the myenteric ganglia, which include enteric neurons, synaptic neuropils, and glial cells. Abnormal myenteric plexus formation can result in gastrointestinal disorders. Comprehensive morphological classification studies of myenteric ganglia remain limited. Methods Whole-mount immunofluorescence staining was used to label myenteric ganglia in colon tissue of mice and children. The ganglionic area and the number of intraganglion neurons were quantified by the K-means clustering algorithm. The guts of embryonic day 11.5 (E11.5) mouse were cult
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Bistoletti, Michela, Giovanni Micheloni, Nicolò Baranzini, et al. "Homeoprotein OTX1 and OTX2 involvement in rat myenteric neuron adaptation after DNBS-induced colitis." PeerJ 8 (February 13, 2020): e8442. http://dx.doi.org/10.7717/peerj.8442.

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Background Inflammatory bowel diseases are associated with remodeling of neuronal circuitries within the enteric nervous system, occurring also at sites distant from the acute site of inflammation and underlying disturbed intestinal functions. Homeoproteins orthodenticle OTX1 and OTX2 are neuronal transcription factors participating to adaptation during inflammation and underlying tumor growth both in the central nervous system and in the periphery. In this study, we evaluated OTX1 and OTX2 expression in the rat small intestine and distal colon myenteric plexus after intrarectal dinitro-benzen
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Wester, T., D. S. O’Briain, and P. Puri. "Notable postnatal alterations in the myenteric plexus of normal human bowel." Gut 44, no. 5 (1999): 666–74. http://dx.doi.org/10.1136/gut.44.5.666.

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BACKGROUNDNitric oxide is the most important transmitter in non-adrenergic non-cholinergic nerves in the human gastrointestinal tract. Impaired nitrergic innervation has been described in Hirschsprung’s disease, hypertrophic pyloric stenosis, and intestinal neuronal dysplasia (IND). Recent findings indicate that hyperganglionosis, one of the major criteria of IND, is age dependent. However, information is scanty regarding the neurone density in normal human bowel in the paediatric age group.AIMSTo determine neurone density, morphology, and nitric oxide synthase distribution of the normal myent
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Baruhee, Divya. "Developing myenteric plexus in human foetal colon." Journal of the Anatomical Society of India 66 (August 2017): S86. http://dx.doi.org/10.1016/j.jasi.2017.08.270.

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Dissertations / Theses on the topic "Colon myenteric plexus"

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Girotti, Priscila Azevedo. "Análise morfoquantitativa dos neurônios mioentéricos e submucosos imunorreativos aos receptores P2X2 e P2X7, ao óxido nítrico sintase (NOS), à calretinina, à calbindina e à colina acetil transferase (ChAT) do colo distal de ratos submetidos à desnutrição e à renutrição protéica." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/42/42131/tde-09102008-125826/.

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Este projeto, analisou a distribuição dos neurônios nos plexos mioentérico (PM) e submucoso (PS) imunorreativos aos receptores P2X2 (ir) e P2X7 (ir), calbindina (Calb-ir), calretinina (Calr-ir), colina acetil transferase (ChAT-ir) e ao óxido nítrico sintase (NOS-ir) do colo distal de ratos submetidos à desnutrição a renutrição protéica. Utilizaram-se colos distais de ratos nutridos (N42), desnutridos (D42) e renutridos (RN42). Os resultados do plexo PM, demonstraram que 100% dos neurônios Calb-ir, Calr-ir, ChAT-ir e NOS-ir, expressavam os receptores P2X2-ir e P2X7-ir nos três grupos. A densida
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Arango, Lynda Jhailú Tamayo. "Avaliação histoquímica, imuno-histoquímica e morfométrica do plexo mioentérico do jejuno e do colo de ratos Wistar durante o desenvolvimento pós-natal." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/10/10132/tde-10082010-173147/.

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O objetivo desta pesquisa foi quantificar os neurônios mioentéricos do jejuno e do colo durante o desenvolvimento pós-natal de ratos Wistar utilizando morfometria com enfoque estereológico e analisar as mudanças na área ocupada por neurônios e axônios mediante Sistemas de Informação Geográfica (SIG). Foram usadas 20 fêmeas de ratos da linhagem Wistar, divididas em grupos de acordo com a idade pós-natal em dias (G0, G7, G21 e G60). A análise morfométrica foi realizada em preparados totais de membrana usando azul cuprolínico, histoquímica para acetilcolinesterase (AChE) e NADPH-diaforase (NADPH-
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Stojanovska, Vanesa. "Potential Mechanisms Underlying Oxaliplatin-Induced Enteric Neuropathy." Thesis, 2017. https://vuir.vu.edu.au/40586/.

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Cisplatin, carboplatin and oxaliplatin are platinum-based agents that are amongst the most widely used drugs for the treatment of cancer in the clinical setting. Despite their therapeutic efficacy, these platinum-based drugs are associated with a myriad of dose-limiting side-effects. These include acute and chronic peripheral neuropathies (paraesthesias, dysaesthesias), and gastrointestinal complications (nausea, vomiting, constipation and diarrhoea). These side-effects decrease quality of life and cause life-threatening cardiac and renal sequeale consequent to malnutrition, dehydration and fl
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Book chapters on the topic "Colon myenteric plexus"

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Galvis, Daniel A., Theadis R. Wells, Frank Sinatra, Benjamin H. Landing, and Masoud Shamszadeh. "Hypoplastic Myenteric (Auerbach) Plexus of Small Intestine and Colon of Premature Infants with Bronchopulmonary Dysplasia Who Had Nissen Fundoplication for Gastroesophageal Reflux." In Topics in Pediatrics. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-3230-8_13.

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