Fig. 5.
Urinary bladder dysfunction onset precedes motor dysfunction in SYN-OE mice. Urinary bladder dysfunction was observed in SYN-OE mice at 4 months of age and persisted to the last age studied (16 months of age). The presence (score of 1) of urinary bladder dysfunction preceded motor dysfunction by 7 months in SYN-OE mice. Motor dysfunction was not observed (absence; score of 0) in SYN-OE evaluated using rotarod testing (Fig. 2) and gait analyses (Fig. 3) from 1-10 months of age. Urinary bladder dysfunction was not observed (absence; score of 0) using conscious cystometry in SYN-OE mice evaluated from 1-3 months of age.