The optimal choices of animal models of white matter injury

Area of Science:

• Neonatal Neurology
• Neuroscience Research
• Developmental Neuroscience

Background:

• White matter injury is the most common neurological insult in preterm infants, leading to chronic neurological conditions like cerebral palsy.
• While progress has been made in understanding its mechanisms, the pathogenesis of white matter injury in newborns remains incompletely understood, necessitating further research and therapeutic development.
• Animal models are essential for investigating the pathogenesis, treatment strategies, and prognosis of white matter injury in preterm infants.

Purpose of the Study:

• To review commonly used animal models for studying white matter injury in preterm infants.
• To discuss the modeling methods, advantages, and limitations of various animal models.
• To highlight clinically relevant models that replicate insults contributing to human infant white matter injury.

Main Methods:

• Review of existing literature on animal models of white matter injury.
• Analysis of modeling techniques, including species used (rodents, rabbits, sheep, non-human primates).
• Evaluation of the suitability of small and large animal models for different research aspects (mechanistic vs. translational).

Main Results:

• Small animal models offer cost-effective investigation of molecular and cellular mechanisms.
• Large animal models are valuable for pathophysiological and clinical-translational studies.
• Clinically relevant models can reproduce insults associated with human infant white matter injury.

Conclusions:

• A variety of animal models exist for studying white matter injury in preterm infants, each with unique strengths and weaknesses.
• The choice of animal model depends on the specific research question, from mechanistic studies to translational applications.
• Further development and application of appropriate animal models are critical for advancing the understanding and treatment of neonatal white matter injury and its long-term consequences.