Summary
Intraperitoneal injections of cupric chloride prevent neuronal degeneration in the hemizygous brindled motled mouse, MObr/Y, a murine model of kinky hair syndrome (KHS) in humans. At 6–9 months after two i.p. injections, the brain of MObr/Y revealed slightly increased amounts of lipofuscin pigments in the cerebral cortical neurons, cytoplasmic inclusions in the thalamic neurons, and axonal spheroid formation in the tuber cinereum, cerebellum, and brain stem. Increased numbers of mitoses, bizarre hyperchromatic giant nuclei, and numerous clear vacuoles were frequently seen in the proximal renal tubular epithelium. Numerous myelin figures were conspicuous features in these epithelial cells at ultrastructural level. Such changes were not found in the littermate controls but in the heterozygous brindled mottled mouse, MObr/+, identical changes were noted in equal or even higher frequency. These observations suggest that cupric chloride injections effectively modify the expression of the genetic defect in MObr/Y.
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Supported in part by research grants NS-03356, NS-10803, NS-10885, and HD-01799 and a training grant for experimental neuropathology, NS-07098, from the National Institutes of Health, USPHS, USA
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Suzuki, K., Nagara, H. Brindled mottled mouse: Morphological changes of brain and visceral organs in hemizygous males following copper supplementation. Acta Neuropathol 55, 251–255 (1981). https://doi.org/10.1007/BF00690986
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DOI: https://doi.org/10.1007/BF00690986