Related Experiment Video

Updated: Jun 18, 2026

The Hypoxic Ischemic Encephalopathy Model of Perinatal Ischemia
08:47

The Hypoxic Ischemic Encephalopathy Model of Perinatal Ischemia

Published on: November 19, 2008

Hypoxic-ischemic encephalopathy in the term infant

Ali Fatemi1, Mary Ann Wilson, Michael V Johnston

  • 1Kennedy Krieger Institute, Department of Neurology, Johns Hopkins Medical Institutions, 707 N Broadway, Baltimore, MD 21205, USA.

Clinics in Perinatology
|December 1, 2009
PubMed

Insights

Perinatal hypoxia-ischemia causes cerebral palsy. Researchers identified molecular mechanisms and potential therapeutic targets for hypoxic-ischemic encephalopathy, but treatments remain limited.

Area of Science:

  • Neuroscience
  • Pediatrics
  • Molecular Biology

Background:

  • Perinatal hypoxia-ischemia is a leading cause of cerebral palsy and childhood disabilities.
  • Significant research advances in understanding hypoxic-ischemic encephalopathy (HIE) over the past two decades.
  • Current therapeutic interventions for HIE remain limited despite identified molecular mechanisms.

Purpose of the Study:

  • To review molecular pathways implicated in perinatal hypoxia-ischemia.
  • To discuss potential therapeutic targets for HIE based on recent molecular discoveries.

Main Methods:

  • Literature review of recent research on hypoxia-ischemia.
  • Analysis of identified molecular mechanisms in HIE.
  • Discussion of potential therapeutic strategies.

Main Results:

  • Several key molecular pathways involved in the pathophysiology of hypoxia-ischemia have been elucidated.
  • New insights into the complex biological processes underlying HIE.
  • Identification of several promising molecular targets for future therapeutic development.

Conclusions:

  • Despite advances in understanding HIE molecular mechanisms, effective treatments are still lacking.
  • Targeting identified molecular pathways offers potential for novel therapeutic interventions.
  • Further research is needed to translate molecular findings into clinical practice for HIE.

More Related Videos

A Piglet Model of Neonatal Hypoxic-Ischemic Encephalopathy10:30

A Piglet Model of Neonatal Hypoxic-Ischemic Encephalopathy

Published on: May 16, 2015

Related Concept Videos

Ischemic Stroke ll: Pathophysiology01:15

Ischemic Stroke ll: Pathophysiology

An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
Hepatic Encephalopathy01:29

Hepatic Encephalopathy

DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...
Cytotoxic Edema: Pathophysiology01:21

Cytotoxic Edema: Pathophysiology

Cytotoxic edema is a form of cerebral edema characterized by intracellular swelling of neurons, astrocytes, and other glial cells. It develops when the mechanisms responsible for maintaining ionic gradients across the cell membrane become impaired. Under normal physiological conditions, the sodium–potassium ATPase actively transports sodium ions out of the cell and potassium ions into the cell, preserving osmotic balance and enabling electrical signaling. This pump requires a continuous supply...
Encephalitis l: Introduction01:19

Encephalitis l: Introduction

Encephalitis is inflammation of the brain parenchyma, most often due to infections or autoimmune processes. It presents with neuropsychiatric features such as fever, altered mental status, behavioral changes, cognitive dysfunction, seizures, focal deficits, and sometimes autonomic instability. In some cases, the meninges are also involved, resulting in meningoencephalitis.Infectious CausesInfectious encephalitis is most commonly viral but can also result from bacterial, fungal, or parasitic...
Hypoxia01:23

Hypoxia

Hypoxia is a medical condition characterized by an inadequate oxygen supply to body tissues. It typically manifests as a bluish discoloration of the skin and mucosae, especially in fair-skinned individuals, when hemoglobin (Hb) saturation drops below 75%.
Types of Hypoxia
There are four primary types of hypoxia, each resulting from a different cause:
1. Anemic hypoxia: This type occurs due to insufficient oxygen delivery caused by a lack of red blood cells (RBCs) or RBCs with abnormal or...
Acute Respiratory Failure-II01:21

Acute Respiratory Failure-II

Type I Respiratory Failure, or hypoxemic respiratory failure, occurs when the partial pressure of oxygen (PaO2) in arterial blood falls below 60 mmHg while breathing room air without a corresponding increase in arterial carbon dioxide levels (PaCO2). This condition highlights a significant impairment in the lungs' capacity to oxygenate the blood.
The underlying physiological abnormalities that contribute to hypoxemic respiratory failure include: