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Vagotomy suppresses food intake by increasing GLP-1 secretion via the M3 AChR-AMPKα pathway in mice.
Mol Cell Endocrinol
January 2025
Gastric Cancer Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China. Electronic address:
Objective: The gut-brain axis (GBA) is involved in the modulation of multiple physiological activities, and the vagus nerve plays an important role in this process. However, the association between vagus nerve function and nutritional regulation remains unclear. Here, we explored changes in the nutritional status of mice after vagotomy and investigated the underlying mechanisms responsible for these changes.
View Article and Find Full Text PDFLiver Cancer Neuroscience: Regulating Liver Tumors via Selective Hepatic Vagotomy.
Methods Protoc
December 2024
Thoracic and Gastrointestinal Malignancies Branch, Center for Cancer Research (CCR), National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD 20892, USA.
Both the prevalence and mortality of liver cancers continue to rise. Early surgical interventions, including liver transplantation or resection, remain the only curative treatment. Nerves in the periphery influence tumor growth within visceral organs.
View Article and Find Full Text PDFThe unique role of fluoxetine in alleviating depression and anxiety by regulating gut microbiota and the expression of vagus nerve-mediated serotonin and melanocortin-4 receptors.
Biomed Pharmacother
January 2025
School of Pharmacy and Institute of New Drug Development, Jeonbuk National University Jeonju 54896, Republic of Korea. Electronic address:
Fluoxetine is a selective serotonin reuptake inhibitor (SSRI) widely used for depression, but its potential effects on gut microbiota regulation and vagus nerve-mediated serotonin receptor expression have not been well studied. We investigated changes in the gut microbiome regulated by fluoxetine and vagus nerve-mediated expression of several serotonin (5-HT) receptor types associated with anxiety and depression. Oral administration of fluoxetine alleviated lipopolysaccharide (LPS)-induced depressive and anxiety behaviors, increased 5-HT1A, 2 C, and melanocortin 4 (MC4) receptor expression, and the composition of Lactobacillus in mice's gut microbiome.
View Article and Find Full Text PDFVagal innervation limits brain injury by inhibiting gut-selective integrin-mediated intestinal immunocyte migration in intracerebral hemorrhage.
Theranostics
December 2024
Department of Neurology, The People's Hospital of Zhengzhou University & Henan Provincial People's Hospital, 450003, Zhengzhou, P. R. China.
: The vagus nerve, which connects the brain and gastrointestinal tract, helps to maintain immune balance in the intestines. Gut-specific integrins, on the other hand, help to keep immune cells in the intestines. Since immune cells from outside the intestines can significantly affect the outcome of strokes, we investigated how immune cells from the intestines affect the immune response in the brain during intracerebral hemorrhage (ICH).
View Article and Find Full Text PDFThe vagus nerve: An old but new player in brain-body communication.
Brain Behav Immun
February 2025
Chiba University Center for Forensic Mental Health, Chiba, Japan. Electronic address:
The vagus nerve is a crucial component of the parasympathetic nervous system, facilitating communication between the brain and various organs, including the ears, heart, lungs, pancreas, spleen, and gastrointestinal tract. The caudal nucleus of the solitary tract in the brainstem is the initial site regulated by the vagus nerve in brain-body communication, including the interactions with immune system. Increasing evidence suggests that the gut-brain axis, via the vagus nerve, may play a role in the development and progression of psychiatric, neurologic, and inflammation-related disorders.
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