Significance of behavioural tests in a transgenic mouse model of amyotrophic lateral sclerosis (ALS) - PubMed (original) (raw)
. 2010 Nov 12;213(1):82-7.
doi: 10.1016/j.bbr.2010.04.042. Epub 2010 May 5.
Affiliations
- PMID: 20450936
- DOI: 10.1016/j.bbr.2010.04.042
Significance of behavioural tests in a transgenic mouse model of amyotrophic lateral sclerosis (ALS)
Sarah Knippenberg et al. Behav Brain Res. 2010.
Abstract
Amyotrophic Lateral Sclerosis (ALS) is a devastating adult-onset motor neuron disorder with marginal therapeutic options. The disease is characterized by progressive degeneration of motor neurons in spinal cord and motor cortex. Transgenic mice carrying the G93A mutation of the superoxide dismutase 1 (SOD1) gene develop a neurodegenerative disease closely mimicking human ALS. Several methods are currently used to record disease onset and progression of the animals in preclinical studies. For the interpretation of these preclinical trials, it is important to assess neurological function as sensitively as possible. In the present study, five different parameters (rotarod performance, weight, footprint analysis for both step length and runtime and the general condition of the mice scored from 1 to 5) were compared with respect to their significance to detect symptom onset and to monitor disease progression in transgenic G93A ALS mice. The rotarod and footprint analyses were performed weekly while the weight was recorded up to three times a week at later time points. General condition was assessed daily. First deficits were detected by rotarod testing and step length analyses. General condition score and weight showed first changes two weeks later. For preclinical testing of novel drug treatments rotarod and footprint analysis for step length therefore seem to be the most effective methods to detect symptom onset and potential treatment induced improvements.
(c) 2010 Elsevier B.V. All rights reserved.
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