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- Pediatrics
Disruption of Myelin Structure and Oligodendrocyte Maturation in a Macaque Model of Congenital Zika Infection
Tisoncik-Go et al., Nature Communications. 2024.
https://www.nature.com/articles/s41467-024-49524-2
Maternal infection during pregnancy can have severe consequences on fetal development and survival. Using a pigtail macaque model for Zika virus infection, researchers show that in utero exposure of a fetus to Zika virus due to maternal infection results in significantly decreased myelin formation around neurons. Myelin is a protective sheath that forms around neurons and is required for brain processing speed. This study suggests that reduced myelin resulting from Zika infection in utero is likely a contributing factor to severe deficits in brain development and microcephaly. Supported by ORIP (P51OD010425), NEI, and NIAID.
Genetic Diversity of 1,845 Rhesus Macaques Improves Genetic Variation Interpretation and Identifies Disease Models
Wang et al., Nature Communications. 2024.
https://www.nature.com/articles/s41467-024-49922-6
Nonhuman primates are ideal models for certain human diseases, including retinal and neurodevelopmental disorders. Using a reverse genetics approach, researchers profiled the genetic diversity of rhesus macaque populations across eight primate research centers in the United States and uncovered rhesus macaques carrying naturally occurring pathogenic mutations. They identified more than 47,000 single-nucleotide variants in 374 genes that had been previously linked with retinal and neurodevelopmental disorders in humans. These newly identified variants can be used to study human disease pathology and to test novel treatments. Supported by ORIP (P51OD011107, P51OD011106, P40OD012217, S10OD032189), NEI, NIAID, and NIMH.