Results 171 to 180 of about 11,706 (220)
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Myenteric plexus in spastic motility disorders
Journal of Gastrointestinal Surgery, 2001Previous studies have often revealed an absence or reduction of ganglia in Auerbach's plexus in many patients with achalasia, which has been postulated to be related to the elevated lower esophageal sphincter pressure in these patients. We undertook a prospective study to determine whether microscopic changes were present in the myenteric plexus of ...
J K, Champion, N, Delise, T, Hunt
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Hyperplasia of the Myenteric Plexus
American Journal of Diseases of Children, 1982• An infant with cutaneous criteria for neurofibromatosis had hyperplasia of the intestinal myenteric plexus and a clinical presentation mimicking Hirschsprung's disease. Many of his phenotypic features are also found in multiple endocrine neoplasia type IIb, a condition in which hyperplasia of the myenteric plexus is common.
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Structural and Chemical Organization of the Myenteric Plexus
Annual Review of Physiology, 1988The most striking characteristics of the myenteric plexus are the heterogeneity of its neuronal populations and the complexity of its organization. Myenteric neurons greatly differ in their morphological characteristics, projection patterns, and topographical arrangement within the ganglia.
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Myenteric plexus injury and apoptosis in experimental colitis
Autonomic Neuroscience, 2005Intestinal inflammatory conditions are associated with structural and functional alterations of the enteric nervous system (ENS). While injury to the enteric nervous system is well described, the mechanisms of neuronal injury and neuronal cell loss remain unclear. The aim of the present study was to examine the neural consequences of distal colitis and
Lee, Boyer +6 more
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Evidence that substance P is a neurotransmitter in the myenteric plexus
Nature, 1980Substance P (SP) is an undecapeptide originally isolated from the gut and since shown to occur within neurones in several parts of the peripheral and central nervous systems. Immunohistochemical studies indicate an exceedingly dense network of SP-containing nerves within the myenteric plexus of the guinea pig ileum.
K, Morita, R A, North, Y, Katayama
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Diagnosis and Treatment of Aganglionosis of the Myenteric Plexus
Archives of Surgery, 1957One of the most important advances in pediatric surgery during the past 10 years has been the clarification of the etiology of congenital megacolon and the evolution of a satisfactory form of surgical treatment. Many newborn infants who formerly died of "volvulus of the sigmoid," or "locked bowels," have been saved, and hundreds of older children have ...
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Effects of morphine on myenteric plexus neurones
Neuropharmacology, 1976Abstract Intracellular recordings were made from neurones in the isolated myenteric plexus of the guinea-pig ileum. Approximately 50% of neurones responded to bath application of normorphine (10 nM−1 μM) with an immediate hyperpolarization. The hyperpolarization was usually associated with a fall in membrane resistance. The effect reversed on washing
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Immunocytochemical localization of GABA in cat myenteric plexus
Neuroscience Letters, 1987Transverse sections through various levels of the feline gastrointestinal tract (antrum pyloricum, duodenum, jejunum, ileum and colon) were obtained from animals perfused with a mixture of glutaraldehyde and paraformaldehyde, and incubated with an antiserum specific for glutaraldehyde-fixed GABA.
S, Davanger +2 more
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The Comparative Analysis of the Myenteric Plexus in Pigeon and Hen
Anatomia, Histologia, Embryologia, 2003SummaryUsing the thiocholine method and histological techniques the myenteric plexuses of pigeon and hen were studied. Investigations revealed the presence of a nervous network in the wall of the small intestine of both animals. It consists of many nerve fibres crossing each other and creating meshes in a variety of shapes.
T, Kuder +3 more
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Familial absence of myenteric plexus (congenital megacolon)
The Journal of Pediatrics, 1965Six families with agenesis of myenteric plexus are described, including monozygotic twins. Out of 6 families reported in 4 instances there were long segments as well as short segments. Parents of a child with Hirschsprung's disease should be advised that the probability of another sibling having the disease is rather unlikely (in the range of 2 to 3 ...
B, EMANUEL, M P, PADORR, O, SWENSON
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