Commentary to the in‐focus issue “Perinatal brain injury leading to later neurodevelopmental disorders: Early detection and treatment options”

Tan, Sidhartha; Shi, Zhijun

doi:10.1002/jnr.25130

J of Neuroscience Research

2022

DOI: 10.1002/jnr.25130

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Commentary to the in‐focus issue “Perinatal brain injury leading to later neurodevelopmental disorders: Early detection and treatment options”

Sidhartha Tan

Zhijun Shi

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2024

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Cited by 1 publication

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Development of a New Scoring System in Higher Animals for Testing Cognitive Function in the Newborn Period: Effect of Prenatal Hypoxia-Ischemia

Shi,

Sharif,

Luo

et al. 2024

Dev Neurosci

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Introduction: Enhanced models for assessing cognitive function in the neonatal period are imperative in higher animals. Postnatal motor deficits, characteristic of cerebral palsy, emerge in newborn kits within our prenatal rabbit model of hypoxia-ischemia (HI). In humans, prenatal HI leads to intellectual disability and cerebral palsy. In a study examining cognitive function in newborn rabbits, we explored several questions. Is there a distinction between conditioned and unconditioned kits? Can the kits discern the human face or the laboratory coat? Do motorically normal kits, born after prenatal HI, exhibit cognitive deficits? Methods: The conditioning protocol was randomly assigned to kits from each litter. For conditioning, the same human, wearing a laboratory coat, fed the rabbit kits for 9 days before the cognitive test. The 6-arm radial maze was chosen for its simplicity and ease of use. Normally appearing kits, born after uterine ischemia at 79% or 92% term in New Zealand White rabbits, were compared to naïve kits. On postpartum day 22/23 or 29/30, the 6-arm maze helped determine if the kits recognized the original feeder from bystander (test 1) or the laboratory coat on bystander (test 2). The use of masks of feeder/bystander (test 3) assessed confounding cues. A weighted score was devised to address variability in entry to maze arms, time, and repeated-trial learning. Results: In conditioned kits, both naïve and HI kits exhibited a significant preference for the face of the feeder but not the laboratory coat. Cognitive deficits were minimal in normal-appearing HI kits. Conclusion: The weighted score was amenable to statistical manipulation.

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Development of a New Scoring System in Higher Animals for Testing Cognitive Function in the Newborn Period: Effect of Prenatal Hypoxia-Ischemia

Shi,

Sharif,

Luo

et al. 2024

Dev Neurosci

View full text Add to dashboard Cite

show abstract

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Commentary to the in‐focus issue “Perinatal brain injury leading to later neurodevelopmental disorders: Early detection and treatment options”

Cited by 1 publication

References 16 publications

Development of a New Scoring System in Higher Animals for Testing Cognitive Function in the Newborn Period: Effect of Prenatal Hypoxia-Ischemia

Development of a New Scoring System in Higher Animals for Testing Cognitive Function in the Newborn Period: Effect of Prenatal Hypoxia-Ischemia

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