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MRI Characteristics of Japanese Macaque Encephalomyelitis (JME): Comparison to Human Diseases

Tagge et al., Journal of Neuroimaging. 2021.

https://onlinelibrary.wiley.com/doi/10.1111/jon.12868

Magnetic resonance imaging data (MRI) were obtained from 114 Japanese macaques, including 30 animals of both sexes that presented with neurological signs of Japanese macaque encephalomyelitis (JME). Quantitative estimates of blood-brain barrier permeability to gadolinium-based-contrast agent (GBCA) were obtained in acute, GBCA-enhancing lesions, and longitudinal imaging data were acquired for 15 JME animals. Intense, focal neuroinflammation was a key MRI finding in JME. Several features of JME compare directly to human inflammatory demyelinating diseases. The development and validation of noninvasive imaging biomarkers in JME provides the potential to improve diagnostic specificity and contribute to the understanding of human demyelinating diseases. Supported by ORIP (P51OD011092, S10OD018224), NINDS, and NIBIB.