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Related Concept Videos

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Peripheral thermosensation is the perception of external temperature. A change in temperature (on the surface of the skin and other tissues) is detected by a family of temperature-sensitive ion channels called Transient Receptor Potential, or TRP, receptors. These receptors are located on free nerve endings. Those detecting cold temperatures are closer to the surface of the skin than the nerve endings detecting warmth. These thermoTRP channels, while temperature selective, have relatively...
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Diencephalon: Hypothalamus and Coordination01:23

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The hypothalamus is a small yet highly complex and essential brain region that plays a crucial role in regulating various bodily functions. Anatomically, it is located at the base of the brain, just above the brainstem and below the thalamus, forming part of the limbic system.
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Neural circuits and neuronal pools are two of the main structures found in the nervous system. Neural circuits are networks of neurons that work together to carry out a specific task or process. They consist of interconnected neurons and glial cells, which provide structural and metabolic support.
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Thermoregulation01:26

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The human body has a sophisticated thermoregulation system that employs negative feedback mechanisms to maintain an optimal core temperature. When the core temperature drops, peripheral and central thermoreceptors send signals to the hypothalamus, activating the heat-promoting center. This center triggers several responses aimed at increasing the core temperature. First, vasoconstriction reduces the flow of warm blood from internal organs to the skin so that the heat is not lost from the skin,...
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The Role of Ion Channels in Neuronal Computation01:19

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A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
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Related Experiment Video

Updated: Nov 5, 2025

Recording Temperature-induced Neuronal Activity through Monitoring Calcium Changes in the Olfactory Bulb of Xenopus laevis
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QPLOT Neurons-Converging on a Thermoregulatory Preoptic Neuronal Population.

Brian A Upton1,2,3,4, Shane P D'Souza1,2,3, Richard A Lang1,2,5,6

  • 1The Visual Systems Group, Abrahamson Pediatric Eye Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.

Frontiers in Neuroscience
|May 21, 2021
PubMed
Summary

Researchers identified a specific neuronal population in the hypothalamus, termed QPLOT neurons, that suppresses thermogenesis. These neurons integrate various signals to regulate metabolism and body temperature.

Keywords:
Leptin receptorOpn5PTGER3QRFPTacr3neuropsinthermoregulationtorpor

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Area of Science:

  • Neuroscience
  • Metabolic regulation
  • Hypothalamic function

Background:

  • The preoptic area of the hypothalamus is crucial for homeostatic control.
  • Neurons in this region regulate vital functions including sleep, reproduction, hydration, and thermogenesis.
  • Recent studies suggest specific preoptic neuronal subtypes play a role in suppressing thermogenesis.

Purpose of the Study:

  • To consolidate findings on a specific preoptic neuronal population involved in thermogenesis suppression.
  • To propose a unified name and description for these neurons, highlighting their broader metabolic regulatory roles.
  • To characterize the QPLOT neurons as an excitatory population integrating diverse stimuli.

Main Methods:

  • Reanalysis of single-cell/nucleus RNA-sequencing datasets from the preoptic nucleus.
  • Review and synthesis of recent studies on preoptic neuronal populations and thermogenesis.
  • Comparison of chemogenetic modulation and synaptic tracing data across different stimuli responses.

Main Results:

  • Evidence converges on a common neuronal population sufficient to suppress thermogenesis when activated.
  • These neurons exhibit similar responses to cold, inflammatory stimuli, and violet light.
  • A unified description of QPLOT neurons is presented, encompassing their molecular markers and functions.

Conclusions:

  • QPLOT neurons are a key excitatory population in the preoptic area.
  • These neurons integrate thermal, metabolic, hormonal, and environmental cues.
  • QPLOT neurons play a significant role in regulating metabolism and thermogenesis.