Table 2. Ten-point standardized rating scale for EAE clinical score monitoring.
Score | Description | |
Tail | 0 | Tail erected |
1 | Extremity of the tail flaccid with a tendency to fall | |
2 | Tail completely flaccid and drags on the table | |
Hind limbs | 0 | Energetic walk and doesn’t drag his paws |
1 | Either one of the following test is positive: (i) flip test: a delay suggests hind-limb weakness, (ii) on the wire cage top: one or both limbs frequently slip between the bars, sign of partial paralysis | |
2 | Both previous tests are positive | |
3 | One or both hind limbs show signs of paralysis but some movement is preserved | |
4 | Both hind legs are paralyzed and the mouse drags them when moving | |
Fore limbs | 0 | Front paws active for grasping and walking and head erected |
1 | Walking is difficult due to a weakness in one or both of the paws, another sign is head drooping | |
2 | One forelimb is paralyzed, head lost much of its muscle tone | |
3 | Cannot move, and food and water are unattainable | |
Bladder | 0 | Full control of bladder |
1 | Mouse incontinent |
The final score for each animal is determined by the addition of all the above mentioned categories. Note: Score = 15 for dead animal.