Study of Sensory, Motor, and Behavioral Deficits in Mice with Sanfilippo Syndrome Type B
Author Information
Author(s): Heldermon Coy D., Hennig Anne K., Ohlemiller Kevin K., Ogilvie Judith M., Herzog Erik D., Breidenbach Annalisa, Vogler Carole, Wozniak David F., Sands Mark S.
Primary Institution: Washington University in St. Louis, School of Medicine
Hypothesis
The MPS IIIB mouse model will exhibit phenotypic alterations similar to those observed in human MPS IIIB.
Conclusion
The MPS IIIB mouse model shows significant sensory, motor, and behavioral deficits that parallel the human disease.
Supporting Evidence
- MPS IIIB mice showed a progressive inability to coordinate movement.
- Electroretinography revealed a decrease in retinal function in MPS IIIB mice.
- Auditory-evoked brainstem responses indicated progressive hearing deficits in MPS IIIB mice.
- Histological analysis showed significant loss of Purkinje cells in the cerebellum of MPS IIIB mice.
- MPS IIIB mice had altered circadian rhythms compared to wild-type controls.
Takeaway
Mice with Sanfilippo Syndrome Type B have trouble with movement, hearing, and seeing, just like kids with the same condition.
Methodology
The study involved testing MPS IIIB mice for motor function, circadian rhythm, vision, and hearing, and correlating these with histological findings.
Potential Biases
Potential bias in the interpretation of behavioral tests due to the subjective nature of some assessments.
Limitations
The study's findings may not fully translate to human conditions due to species differences.
Participant Demographics
Mice of mixed gender, specifically the C57BL/6 Naglu-deficient strain.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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