The pyrethroid insecticide deltamethrin disrupts neuropeptide and monoamine signaling pathways in the gastrointestinal tract
2024

Deltamethrin Insecticide Disrupts Gut Signaling

publication 10 minutes Evidence: moderate

Author Information

Author(s): White Alexandria C., Krout Ian N., Mouhi Sabra, Chang Jianjun, Kelly Sean D., Caudle W. Michael, Sampson Timothy R.

Primary Institution: Emory University

Hypothesis

Deltamethrin affects the functional status of enteroendocrine cells (EECs) and alters gastrointestinal signaling pathways.

Conclusion

Deltamethrin exposure leads to significant disruptions in monoaminergic signaling and intestinal motility.

Supporting Evidence

  • Deltamethrin impacts serotonergic pathways and inhibits GLP-1 hormone release in EECs.
  • Oral exposure to deltamethrin induces transient constipation in mice.
  • Significant decrease in peripheral serotonin production was observed after deltamethrin exposure.
  • Deltamethrin interferes with nutrient-stimulated hormone signaling in vivo.

Takeaway

Deltamethrin, a common insecticide, can mess up how our gut cells communicate and move food through our intestines.

Methodology

The study used EEC cell line STC-1 and a mouse model to evaluate the effects of deltamethrin on signaling pathways and intestinal motility.

Limitations

The study primarily focuses on acute effects and may not fully represent chronic exposure outcomes.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1101/2024.12.14.628386

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