scholarly journals Development of interstitial cells of Cajal in the human digestive tract as the result of reciprocal induction of mesenchymal and neural crest cells

2017 ◽  
Author(s):  
Goran Radenkovic ◽  
Dina Radenkovic ◽  
Aleksandra Velickov
Keyword(s):  
Neural Crest ◽  
Digestive Tract ◽  
Interstitial Cells Of Cajal ◽  
Neural Crest Cells ◽  
Interstitial Cells ◽  
Human Digestive Tract ◽  
Cells Of Cajal

scholarly journals Abnormalities of digestive tract innervation in rat fetus treated with ethylenethiourea

2012 ◽  
Vol 27 (3) ◽  
pp. 244-250 ◽  
Author(s):  
Sidney Pereira Pinto Lemos ◽  
José Luiz Martins ◽  
Patrícia Veruska Ribeiro Barbosa Lemos ◽  
Silvio Romero Gonçalves e Silva ◽  
Fernando Leandro dos Santos ◽  
...  
Keyword(s):  
Gastrointestinal Tract ◽  
Digestive Tract ◽  
Myenteric Plexus ◽  
Interstitial Cells Of Cajal ◽  
Muscle Layer ◽  
Interstitial Cells ◽  
Female Rats ◽  
Nerve Plexus ◽  
Cells Of Cajal ◽  
Experimental Group

PURPOSE: The pathophysiology of abnormalities associated with myenteric plexus lesions remains imperfectly understood. Such abnormalities have been correlated with subocclusive intestinal conditions in children with Hirschsprung's disease, cases of chronic constipation and, postoperatively, in cases of anorectal anomalies. This study evaluated abnormalities of the myenteric plexus in fetus from female rats that received ethylenethiourea. METHODS: Female rats were exposed to ethylenethiourea on the 11th day of pregnancy (experimental group) or to 0.9% physiological solution (control group). Abnormalities were only found in the experimental group. The digestive tract muscle layer was analyzed morphometrically and changes to the frequencies of nerve plexus cells and interstitial cells of Cajal were evaluated, using hematoxylin-eosin, S-100 protein, neuron-specific enolase and C-Kit, respectively. RESULTS: Muscle and skeletal abnormalities were observed in 100%, anorectal anomalies in 86%, absent tail in 71%, short tail in 29%, duodenal atresia in 5%, esophageal atresia in 5% and persistent omphalomesenteric duct in 5%. Histopathological analysis showed a thinner muscle layer associated with lower frequencies of ganglion cells and interstitial cells of Cajal, in all gastrointestinal tract. CONCLUSION: Severe nerve plexus abnormalities associated with muscle layer atrophy were observed throughout the gastrointestinal tract in newborn rats exposed to ethylenethiourea.

Sodium current in human small intestinal interstitial cells of cajal

2001 ◽  
Vol 120 (5) ◽  
pp. A201-A201 ◽  
Author(s):  
P STREGE ◽  
A RICH ◽  
Y OU ◽  
S GIBBONS ◽  
M SARR ◽  
...  
Keyword(s):  
Interstitial Cells Of Cajal ◽  
Sodium Current ◽  
Interstitial Cells ◽  
Small Intestinal ◽  
Cells Of Cajal

Effects of Morphine on Interstitial Cells of Cajal in Rabbit Colon and Small Intestinal Transit: An Experimental Study

2020 ◽  
Vol 20 (3) ◽  
pp. 240-246
Author(s):  
Heng Yang ◽  
Xiao-Ju Jin ◽  
Hong Luo ◽  
Yuan-Hai Li
Keyword(s):  
Protein Expression ◽  
Interstitial Cells Of Cajal ◽  
Interstitial Cells ◽  
Saline Control ◽  
Morphine Group ◽  
Small Intestinal Transit ◽  
Medium Concentration ◽  
Epidural Puncture ◽  
Mrna And Protein Expression ◽  
Cells Of Cajal

Objective: This study aims to investigate the effect of morphine with naloxone on intestinal peristalsis and the number of interstitial cells of Cajal (ICC) in colon tissues of rabbits. Methods: Thirty rabbits were randomly divided into five groups (n=6, each group): saline control group (NS group), low concentration of morphine group (L group), medium concentration of morphine group (M group), high concentration of morphine group (H group), medium concentration of morphine and naloxone mixed with antagonist group (NM group). Rabbits in these five groups were administered with an epidural puncture tube and dorsal epidural analgesia pump, and were continuously infused for seven days. Fecal characteristics were observed, and the ink propulsion rate was calculated. The expression level of ICC C-kit protein in colon tissues was tested by western blot. Results: The stool characteristics in the L, M and H groups were more severe than those in the NS and NM groups. Furthermore, the intestinal propulsion rate in the L, M and H groups was lower than that in the NS and NM groups. The C-kit mRNA and protein expression in the colon of rabbits were significantly lower in the L, M and H groups, when compared to the NS and NM groups. Conclusions: Naloxone blocked the mRNA and protein expression of C-kit, and improved intestinal motor function.

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