Alterations of the Enteric Nervous System in Neonatal Necrotizing Enterocolitis Revealed by Whole-Mount Immunohistochemistry

1998 ◽  
Vol 18 (1) ◽  
pp. 57-70 ◽  
Author(s):  
Th. Wedel ◽  
H. J. Krammer ◽  
W. Kuhnel ◽  
W. Sigge
2021 ◽  
Vol 17 ◽  
Author(s):  
Pavithra Chandramowlishwaran ◽  
Shreya Raja ◽  
Akhil Maheshwari ◽  
Shanthi Srinivasan

Background: The pathophysiology of necrotizing enterocolitis (NEC) is not clear, but increasing information suggests that the risk and severity of NEC may be influenced by abnormalities in the enteric nervous system (ENS). Objective: The purpose of this review was to scope and examine the research related to ENS-associated abnormalities that have either been identified in NEC or have been noted in other inflammatory bowel disorders (IBDs) with histopathological abnormalities similar to NEC. The aim was to summarize the research findings, identify research gaps in existing literature, and disseminate them to key knowledge end-users to collaborate and address the same in future studies. Methods: Articles that met the objectives of the study were identified through an extensive literature search in the databases PubMed, EMBASE, and Scopus. Results : The sources identified through the literature search revealed that: (1) ENS may be involved in NEC development and post-NEC complications, (2) NEC development is associated with changes in the ENS, and (3) NEC-associated changes could be modulated by the ENS. Conclusions: The findings from this review identify the enteric nervous as a target in the development and progression of NEC. Thus, factors that can protect the ENS can potentially prevent, and treat NEC and post-NEC complications. This review serves to summarize the existing literature and highlights a need for further research on the involvement of ENS in NEC.


2019 ◽  
Vol 56 (2) ◽  
pp. 113-117
Author(s):  
Jacqueline Nelisis ZANONI ◽  
Gleison Daion PIOVEZANA BOSSOLANI

ABSTRACT BACKGROUND: Few studies regarding arthritic diseases have been performed to verify the presence of the neurodegeneration. Given the increased oxidative stress and extra-articular effects of the rheumatoid arthritis, the gastrointestinal studies should be further investigated aiming a better understanding of the systemic effects the disease on enteric nervous system. OBJECTIVE: To determine whether the rheumatoid arthritis affects the nitrergic density and somatic area of the nNOS- immunoreactive (IR) myenteric neurons, as well as the morphometric areas of CGRP and VIP-IR varicosities of the ileum of arthritic rats. METHODS: Twenty 58-day-old male Holtzmann rats were distributed in two groups: control and arthritic. The arthritic group received a single injection of the Freund’s Complete Adjuvant in order to induce arthritis model. The whole-mount preparations of ileum were processed for immunohistochemistry to VIP, CGRP and nNOS. Quantification was used for the nitrergic neurons and morphometric analyses were performed for the three markers. RESULTS: The arthritic disease induced a reduction 6% in ileal area compared to control group. No significant differences were observed in nitrergic density comparing both groups. However, arthritic group yielded a reduction of the nitrergic neuronal somatic area and VIP-IR varicosity areas. However, an increase of varicosity CGRP-IR areas was also observed. CONCLUSION: Despite arthritis resulted in no alterations in the number of nitrergic neurons, the retraction of ileal area and reduction of nitrergic somatic and VIP-IR varicosity areas may suggest a negative impact the disease on the ENS.


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