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Laura E Schroeder1, Ryan Furdock1, Cristina Rivera Quiles1

  • 1Department of Physiology, Michigan State University, East Lansing, MI 48114, United States.

Neuropeptides
|May 14, 2019
PubMed
Summary
This summary is machine-generated.

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This study maps neurotensin (Nts) neurons in the NtsCre;GFP mouse brain, identifying their locations and densities. This provides a crucial resource for understanding Nts neuron functions in physiology and disease.

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Physiology

Background:

  • Neurotensin (Nts) is a neuropeptide involved in numerous physiological processes, including cardiovascular regulation, pain, and behavior.
  • Understanding the specific roles of different Nts neuron populations is limited due to challenges in simultaneous identification and in vivo manipulation.
  • The NtsCre;GFP mouse line offers a tool for visualizing and modulating Nts neurons.

Purpose of the Study:

  • To comprehensively characterize the distribution and relative densities of Nts-GFP expressing neurons in the male NtsCre;GFP mouse brain.
  • To compare Nts-GFP distribution with Nts-In situ Hybridization (Nts-ISH) data to identify mature Nts populations.
  • To establish a foundational atlas for future functional studies of Nts neuron populations.
Keywords:
Central amygdalaGalaninLateral hypothalamusNucleus accumbensOlfactory tubercleParabrachial nucleusPeriaqueductal grayPreoptic areaThalamus

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Main Methods:

  • Utilized the NtsCre;GFP mouse line for visualization of Nts neurons.
  • Performed detailed mapping of Nts-GFP positive cell bodies throughout the male mouse brain.
  • Compared Nts-GFP expression patterns with Nts-ISH data from adult mouse brains.

Main Results:

  • Provided a comprehensive atlas detailing the distribution and relative densities of Nts-GFP neurons across various brain regions.
  • Identified Nts-GFP populations that may represent transient developmental expression rather than mature Nts expression.
  • Distinguished Nts-GFP populations suitable for Cre-mediated manipulation in adult NtsCre;GFP mice.

Conclusions:

  • The generated Nts-GFP atlas is essential for future research utilizing the NtsCre;GFP line.
  • This resource will facilitate the precise investigation of physiological functions mediated by distinct Nts neuron populations.
  • Understanding these functions may lead to novel therapeutic strategies for Nts-related disorders.