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Postnatal development of vasoactive intestinal polypeptide-expressing GABAergic interneurons in mouse somatosensory cortex.
Acta Physiol (Oxf)
February 2025
Institute for Physiology, University Medical Centre of the Johannes Gutenberg University Mainz, Mainz, Germany.
Aim: Despite dysfunctional vasoactive intestinal polypeptide-positive interneurons (VIP-INs) being linked to the emergence of neurodevelopmental disorders, the temporal profile of VIP-IN functional maturation and cortical network integration remains unclear.
Methods: Postnatal VIP-IN development was traced with patch clamp experiments in the somatosensory cortex of Vip-IRES-cre x tdTomato mice. Age groups were chosen during barrel field formation, before and after activation of main sensory inputs, and in adult animals (postnatal days (P) P3-4, P8-10, P14-16, and P30-36).
Evaluation of Ocular Irritation Sensitivity: Implications of Clinical Parameters, Pain Sensitivity, and Tear Neuromediator Profiles.
J Clin Med
December 2024
Department of Ophthalmology, Chonnam National University Medical School and Hospital, Gwangju 61469, Republic of Korea.
Sensitivity to ocular irritation varies among individuals, being influenced by clinical, subjective, and biochemical factors. This study aimed to evaluate individual variability in ocular irritation sensitivity, focusing on clinical parameters, pain perception, and tear neuromediator profiles. Sixty female participants aged 20-40 were classified into high-sensitivity and low-sensitivity groups based on their response to an irritant (Tween20).
View Article and Find Full Text PDFDistribution and neurochemical characterisation of neurons containing neuregulin 1 in the enteric nervous system within the porcine small intestine.
J Vet Res
December 2024
Institute of Biology, College of Natural Sciences, University of Rzeszów, 35-310 Rzeszów, Poland.
Introduction: The enteric nervous system (ENS) in the wall of the gastrointestinal tract is complex and comprises many neurons, which are differentiated in terms of structure, function and neurochemistry. Neuregulin 1 (NRG 1) is one of the neuronal factors synthesised in the ENS about the distribution and functions of which relatively little is known. The present study is the first description of the distribution of NRG 1 in the ENS in various segments of the porcine small intestine.
View Article and Find Full Text PDFThe effect of prenatal fumonisin B exposure on bone innervation in newborn Wistar rats.
J Vet Res
December 2024
Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, 20-950 Lublin, Poland.
Introduction: This study explored the effects of prenatal exposure to fumonisins B (FB) on bone innervation in newborn Wistar rats.
Material And Methods: Pregnant dams (n = 6 per group) were assigned to either the control or one of two FB-exposed groups (60 mg or 90 mg/kg body weight) from the 7 day of gestation until parturition. On the day of parturition, one male pup from each litter (n = 6 per group) was randomly selected and euthanised, and their femurs were dissected for analysis.
Modulating intestinal neuroimmune VIPergic signaling attenuates the reduction in ILC3-derived IL-22 and hepatic steatosis in MASLD.
Hepatol Commun
November 2024
Department of Cell Biology, New York University School of Medicine, New York, New York, USA.
Article Synopsis
- MASLD (formerly NAFLD) is a significant cause of liver disease and there are limited treatment options available to prevent liver fat accumulation.
- Research indicates that vasoactive intestinal peptide-producing neurons (VIP-neurons) impact fat absorption and IL-22 production, which may help protect the liver.
- In experiments on mice, decreased communication between VIP-neurons and type 3 innate lymphoid cells (ILC3) led to increased IL-22 production and reduced liver fat, suggesting this neuroimmune pathway could be a promising target for new therapies.
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