Knowledge of the potential effect of genetic background in disease models is important. The @entity182 - @entity24869 transgenic @entity19 is the most widely used model in @entity746 ( @entity746 ). Since these animals show considerable variability both in the onset and the progression of the disease, this study aimed to characterize the potential differences between the two most widely used strains, C56BL/6 (B6) and B6SJL. A rotarod test was carried out to assess strength and motor coordination, while electrophysiology tests were performed to evaluate the function of upper and lower motor neurons. Survival of the animals and motor neuron loss were also studied. The results did not show any background effect regarding the rotarod test, despite the differences in the pattern of decline in central and peripheral motor conduction. The onset of motor neuron abnormalities was later in B6SJL @entity19 , but progressed more rapidly. Lifespan was longer for B6 than for B6SJL animals. In conclusion, background differences in disease onset and progression are important. The characteristics of the strain should be taken into account in experimental design of therapeutic studies.

Effect of genetic background on onset and disease progression in the @entity182 - @entity24869 model of XXXX .

@entity24869 :: ('c|SUB|G|93|A', 'DNAMutation') :: ['G93A'] @entity19 :: ('10090', 'Species') :: ['mice', 'mouse'] @entity182 :: ('20655(Tax:10090)', 'Gene') :: ['SOD1'] @entity746 :: ('MESH:D000690', 'Disease') :: ['ALS', 'amyotrophic lateral sclerosis']
@entity746 :: (MESH:D000690,Disease) :: ['amyotrophic lateral sclerosis']
