[Effect of decreased locomotor activity on hindlimb muscles in a rat model of Parkinson's disease].
[Effect of decreased locomotor activity on hindlimb muscles in a rat model of Parkinson's disease].
AI-authored example based only on the available abstract or description. Supporting quotes match the source; interpretations have not had expert review.
In brief
Does a Parkinson-like condition in rats go along with less movement and changes in leg muscles over about three weeks?
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The purpose of this study was to examine effects of decreased locomotor activity on mass, Type I and II fiber cross-sectional areas of ipsilateral and contralateral hindlimb muscles 21 days after establishing the Parkinson's disease rat model.
The researchers injected 6-OHDA, a toxin, into one side of the brain to create the animal model. They compared 17 model rats with 8 sham-treated rats and measured movement and muscle tissue.
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Adult male Sprague-Dawley rats were assigned to one of two groups; the Parkinson's disease group (PD; n=17) and a sham group (S; n=8).
After 21 days, rats in the model group moved less. A lower-leg muscle on the opposite side had lower weight and smaller muscle-fiber cross-sections than in the comparison group.
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Weights and Type I and II fiber cross-sectional areas of the contralateral soleus muscle of the PD group were significantly lower than those of the S group.
This was a short experiment in male rats with toxin-induced injury. It does not test a treatment that halts Parkinson's in people.
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Adult male Sprague-Dawley rats were assigned to one of two groups
This is evidence about consequences of the model, particularly muscle changes. It is not direct evidence about a root cause or cure.
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Contralateral soleus muscle atrophy occurs 21 days after establishing the Parkinson's disease rat model.