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Related Concept Videos

Traumatic Brain Injury l: Introduction01:28

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...
Traumatic Memory01:20

Traumatic Memory

Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual remembers mundane...
Cellular Injury I: Introduction01:00

Cellular Injury I: Introduction

Cellular injury occurs when a cell cannot maintain homeostasis or adapt to stressors such as hypoxia, toxins, or trauma. Depending on severity and duration, injury may be reversible, allowing recovery, or irreversible, leading to cell death.General Mechanisms of Cell InjuryAlthough causes vary, most cellular injuries arise from a few key mechanisms that disrupt essential functions and often amplify one another. Cell survival depends on the extent and balance of these disturbances.ATP depletion...
Cellular Injury II: Classification01:21

Cellular Injury II: Classification

Cellular injury is any process that disrupts a cell’s ability to maintain homeostasis, leading to structural or functional changes. It is broadly classified based on etiology (cause) and mechanism of damage.Classification by EtiologyCellular injury may result from several causes. Hypoxic injury happens due to reduced oxygen delivery, most commonly from inadequate blood supply, such as arterial obstruction; for example, coronary artery thrombosis can cause myocardial infarction. Chemical injury...
Post-traumatic Stress Disorder01:27

Post-traumatic Stress Disorder

Post-traumatic stress disorder (PTSD) is a psychiatric condition that arises following exposure to traumatic events such as natural disasters, forced displacement, or severe accidents. It significantly impairs individuals' ability to cope with daily activities and disrupts their emotional and psychological equilibrium.
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events, are a...
Pneumothorax-I01:26

Pneumothorax-I

A pneumothorax is a condition where air builds up in the space between the lung and the chest wall, causing the lung to collapse. This condition arises when air enters the space between the parietal and visceral pleura, disrupting the negative pressure essential for lung inflation. This can lead to a partial or complete collapse of the lung.
Pneumothorax can be even further classified as spontaneous, traumatic, and tension pneumothorax.

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Related Experiment Video

Updated: Jun 1, 2026

Pseudofracture: An Acute Peripheral Tissue Trauma Model
10:08

Pseudofracture: An Acute Peripheral Tissue Trauma Model

Published on: April 18, 2011

Trauma is danger.

Paul F Hwang1, Nancy Porterfield, Dylan Pannell

  • 1Regenerative Medicine Department, Naval Medical Research Center, Silver Spring, MD, USA.

Journal of Translational Medicine
|June 17, 2011
PubMed
Summary
This summary is machine-generated.

Understanding Danger signals in trauma is crucial. These early immune response molecules offer potential therapeutic targets to mitigate post-injury inflammation, unlike past cytokine-focused approaches.

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A Novel In Vitro Model of Blast Traumatic Brain Injury
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A Novel In Vitro Model of Blast Traumatic Brain Injury

Published on: December 21, 2018

Related Experiment Videos

Last Updated: Jun 1, 2026

Pseudofracture: An Acute Peripheral Tissue Trauma Model
10:08

Pseudofracture: An Acute Peripheral Tissue Trauma Model

Published on: April 18, 2011

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
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A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials

Published on: May 18, 2015

A Novel In Vitro Model of Blast Traumatic Brain Injury
08:59

A Novel In Vitro Model of Blast Traumatic Brain Injury

Published on: December 21, 2018

Area of Science:

  • Immunology
  • Trauma Research

Background:

  • Trauma is a leading cause of mortality in young adults.
  • The precise immunological mediators of systemic trauma are not fully understood.
  • This study explores the immune response to trauma through the lens of the Danger model.

Purpose of the Study:

  • To elucidate the role of Danger signals in the immunologic response to systemic trauma.
  • To highlight the potential of Danger signals as early therapeutic targets.

Main Methods:

  • A comprehensive literature search was conducted using PubMed.
  • Pertinent articles on the Danger model in relation to trauma were identified and analyzed.

Main Results:

  • Current knowledge regarding Danger signals in traumatic injury remains limited.
  • Danger/alarmin signals represent the earliest molecular players in the immune cascade following trauma.

Conclusions:

  • A deeper understanding of Danger signals and their pathways is essential for effective intervention.
  • Targeting Danger signals early could offer a more effective strategy for blunting post-injury inflammation compared to previous cytokine-based therapies.