ArticleGastro hep advances2025
Functional and Structural Investigation of Myenteric Neurons in the Human Colon.
Article in Gastro hep advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Modulation of the microbiota-enteric nervous system axis by environmental factors: from adaptive plasticity to maladaptive neuroenteric remodeling.Frontiers in neuroscience · 2026Review
- Imaging the enteric nervous system.Frontiers in neuroanatomy · 2025Review
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Authors and funding
11 authors.
Funding
Abstract
Background and Aims: The enteric nervous system independently controls gastrointestinal function including motility, which is primarily mediated by the myenteric plexus, therefore also playing a crucial role in functional intestinal disorders. Live recordings from human myenteric neurons proved to be challenging due to technical difficulties. Using the neuroimaging technique, we are able to record human colonic myenteric neuronal activity and investigate their functional properties in a large cohort of patients. Methods: Activity from myenteric neurons in wholemount preparations of different sampling sites of fresh, human colonic tissue was recorded using neuroimaging with the voltage sensitive dye 1-(3-sulfanatopropyl)-4-[beta[2-(di-n-octylamino)-6-naphthyl]vinyl]pyridinium betaine. Neuronal responses were analyzed following stimulation with nicotine and serotonin (5-HT) for differences based on the donor's age, the disorder indicative for surgery and the colonic region. Immunohistochemistry was performed to calculate the total neuronal numbers. Results: Stimulation with nicotine and 5-HT elicited reproducible action potential discharge in a proportion of human myenteric neurons. The responses to 5-HT were significantly greater in tissues from older patients and from those with inflammatory disorders, while neuronal activity to nicotinergic stimulation was comparable in all patients. Neuronal numbers declined with rising patient's age and was highest in the sigmoid colon. Conclusion: Neuroimaging with 1-(3-sulfanatopropyl)-4-[beta[2-(di-n-octylamino)-6-naphthyl]vinyl]pyridinium betaine was successfully adapted to record reproducible responses from human colonic myenteric neurons upon pharmacological stimulation. Evidence exists for an impact of age and inflammation on the serotonergic neuronal signaling and for differences in neuronal numbers in the distinct colonic regions as well as a neuronal decrease with age.
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