There are multiple definitions:

1. maximal anal resting pressure(English)

   • MSP
   • Gastroenterology

2. muscle ankyrin repeat protein(English)

3. Microglial Aβ Response Protein(English)

   • reflects heterogeneity of microglial alterations during early, middle and advanced stages of Aβ deposition
   • Aβ, AD
   • Alzheimer's disease
   • https://doi.org…554/eLife.54083