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Stress Response System

Stress Response System

The stress response system, also known as the fight-or-flight response, is the body's automatic physiological reaction to perceived threats. Hans Selye introduced the concept of General Adaptation Syndrome (GAS) to describe the predictable pattern of changes that occur in response to stress. GAS consists of three sequential stages: alarm, resistance, and exhaustion. This model helps explain how chronic stress can contribute to health problems.
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Diversity in Cell Signaling Responses

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Regulation of the Unfolded Protein Response

Regulation of the Unfolded Protein Response

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The Unfolded Protein Response

The Unfolded Protein Response

The ER is the hub of protein synthesis in a cell. It has robust systems to quality control protein folding and also for degradation of terminally misfolded proteins. Under normal conditions, a small proportion of misfolded proteins that cannot be salvaged need to be transported to the cytoplasm by the ER-associated degradation or ERAD pathways. However, if the ERAD cannot handle the misfolded proteins, the cell activates the unfolded protein response or UPR to adjust the protein folding...

Other Stress Responses in Bacteria

Other Stress Responses in Bacteria

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GPCRs Regulate Adenylyl Cylase Activity

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Related Experiment Video

Updated: May 30, 2026

Evaluating Toxicity of Chemicals using a Zebrafish Vibration Startle Response Screening System

Evaluating Toxicity of Chemicals using a Zebrafish Vibration Startle Response Screening System

Published on: January 12, 2024

Startle response related genes.

Lei Zhang¹, Xian-Zhang Hu, He Li

¹Center for the Study of Traumatic Stress, Department of Psychiatry, Uniformed Services, University of the Health Sciences, Bethesda, MD 20814, United States. Lezhang@USUHS.mil

Medical Hypotheses

|August 23, 2011

Summary

This summary is machine-generated.

This systematic review examines gene variations linked to the startle response, a key indicator in stress-related mental disorders like PTSD. Findings may aid in developing biomarkers for diagnosis and treatment.

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Evaluating Toxicity of Chemicals using a Zebrafish Vibration Startle Response Screening System

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Biomarkers in an Animal Model for Revealing Neural, Hematologic, and Behavioral Correlates of PTSD

Biomarkers in an Animal Model for Revealing Neural, Hematologic, and Behavioral Correlates of PTSD

Published on: October 10, 2012

Area of Science:

Neuroscience
Genetics
Psychiatry

Background:

The startle reaction is a physiological and psychological response to sudden stimuli.
Abnormalities in startle response are linked to stress-related mental disorders, including schizophrenia and post-traumatic stress disorder (PTSD).
The molecular mechanisms and genetic associations of the startle response in stress-related conditions remain largely unknown.

Purpose of the Study:

To systematically review and synthesize existing research on the association between candidate gene molecular variations and the startle response.
To identify potential genetic biomarkers for the startle response.
To explore the translation of research findings into clinical utility for diagnosing and treating stress-induced mental disorders.

Main Methods:

Systematic literature review using PubMed with keywords 'startle gene' and a search date of September 15, 2010.
Inclusion of 486 publications related to genes associated with the startle response.
Categorization of studies into human, animal, and combined human-animal research.

Main Results:

A significant increase in publications linking genes to the startle response was observed from 2001 onwards, with over 70 papers in 2009.
Research spans studies in humans, animals, and both.
The review consolidates information on genetic associations with the startle reflex.

Conclusions:

The identified gene variations associated with the startle response hold potential for developing diagnostic biomarkers.
This research could facilitate clinical applications for stress-induced mental disorders.
Further investigation into genetic factors influencing the startle response is warranted for improved therapeutic strategies.