Related Experiment Video

Updated: Aug 11, 2026

Monitoring Dynamic Growth of Retinal Vessels in Oxygen-Induced Retinopathy Mouse Model
10:32

Monitoring Dynamic Growth of Retinal Vessels in Oxygen-Induced Retinopathy Mouse Model

Published on: April 2, 2021

Oxygen and retinopathy of prematurity

O D Saugstad1

  • 1Department of Pediatric Research, Rikshospitalet University Hospital, University of Oslo, Oslo, Norway. o.d.saugstad@medisin.uio.no

Journal of Perinatology : Official Journal of the California Perinatal Association
|February 17, 2006
PubMed

Insights

Strictly controlling oxygen levels (SaO2) in premature infants can prevent severe retinopathy of prematurity. Avoiding hyperoxia and fluctuations is key to managing this blinding eye condition.

Area of Science:

  • Neonatal ophthalmology
  • Perinatal medicine
  • Vascular biology

Background:

  • Retinopathy of prematurity (ROP) is a growing global health concern, causing blindness in 50,000 children annually.
  • Recent research clarifies the roles of hyperoxia, low gestational age, growth factors, and oxidative stress in ROP pathogenesis.
  • Understanding ROP mechanisms is crucial for developing effective therapeutic strategies.

Purpose of the Study:

  • To elucidate the complex interplay of factors contributing to retinopathy of prematurity.
  • To highlight the critical role of oxygen management in preventing severe ROP.
  • To inform potential therapeutic interventions based on current understanding.

Main Methods:

  • Review of current research on retinopathy of prematurity.
  • Analysis of the phases of ROP development, including vascular endothelial growth factor (VEGF) and insulin-like growth factor-1 (IGF-1) dynamics.
  • Examination of the impact of hyperoxia on ROP progression.

Main Results:

  • Hyperoxia initially inhibits VEGF, followed by a surge in VEGF and IGF-1, potentially leading to neovascularization around 32-34 weeks postconceptional age.
  • Strict avoidance of hyperoxia (SaO2 > 92-93%) and oxygen saturation fluctuations can prevent severe ROP.
  • The precise therapeutic implications of these findings remain under investigation.

Conclusions:

  • Managing oxygenation is paramount in preventing severe retinopathy of prematurity.
  • Maintaining stable, appropriate oxygen saturation levels in premature infants is an effective preventative measure.
  • Further research is needed to translate these insights into novel therapies for ROP.

More Related Videos

Oxygen-Induced Retinopathy Model for Ischemic Retinal Diseases in Rodents09:28

Oxygen-Induced Retinopathy Model for Ischemic Retinal Diseases in Rodents

Published on: September 16, 2020

Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies12:28

Quantification of Vascular Parameters in Whole Mount Retinas of Mice with Non-Proliferative and Proliferative Retinopathies

Published on: March 12, 2022

Related Concept Videos

Diabetic Retinopathy01:27

Diabetic Retinopathy

DefinitionDiabetic retinopathy is a microvascular complication of diabetes affecting the retinal blood vessels.Risk FactorsDiabetic retinopathy is present in almost all individuals with type 1 diabetes and more than 60% of those with type 2 diabetes after two decades of disease.The risk increases with poor glycemic control, hypertension, dyslipidemia, smoking, pregnancy, and puberty.Although cataracts and glaucoma are also more frequent in people with diabetes, retinopathy remains the leading...
Respiratory Assessment: Purpose and Indications01:19

Respiratory Assessment: Purpose and Indications

Respiratory assessment is a cornerstone of nursing assessments, crucial for the early detection of patient deterioration. This evaluation transcends routine procedures, representing a critical skill nurses must master to ensure optimal patient care.
Objectives and Importance:
The primary goal of respiratory assessment is to evaluate patients at early risk of clinical deterioration. Since respiratory distress often precedes other signs of declining health, breathing patterns and sounds become a...
Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure01:16

Treatment for Pulmonary Arterial Hypertension: Oxygen Therapy for Respiratory Failure

Oxygen therapy has emerged as a significant tool in enhancing the quality of life for patients suffering from pulmonary arterial hypertension (PAH). While this therapy has principally been studied on patients with significant hypoxemia, this therapeutic approach helps prevent potential organ damage and can be administered in the comfort of one's home.
Oxygen therapy is vital in increasing and maintaining blood oxygen levels in PAH patients. As a result, it aids in reducing fatigue, improving...
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:
Oxygen Transport in the Blood01:27

Oxygen Transport in the Blood

Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...