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Acquisition of a High-precision Skilled Forelimb Reaching Task in Rats
Published on: June 22, 2015
Soy protein diet increases skilled forelimb reaching function after stroke in rats
Joseph L Cheatwood1, Derek Burnet, Dustie N Butteiger
1Department of Anatomy, Southern Illinois University School of Medicine, Carbondale, IL, USA. jcheatwood@siumed.edu
Behavioural Brain Research
|October 2, 2010
Summary
A soy protein diet may protect against stroke damage. Rats fed soy protein isolate after a stroke showed fewer motor deficits compared to those on a casein diet, suggesting dietary benefits for stroke recovery.
Area of Science:
- Neuroscience
- Nutrition Science
- Dietary Interventions
Background:
- Stroke is a primary cause of long-term disability.
- Dietary modifications are accessible lifestyle changes for stroke prevention and recovery.
- Previous studies on soy diets post-stroke focused on short-term effects and did not use defined soy protein isolates.
Purpose of the Study:
- To investigate the long-term effects of soy protein isolate-based diets on stroke outcomes.
- To determine if a defined soy protein diet offers neuroprotection following ischemic stroke.
Main Methods:
- Male Long Evans Hooded rats were fed either sodium caseinate (CAS) or soy protein isolate (SP) diets.
- Rats were trained on a skilled forelimb reaching task before undergoing middle cerebral artery occlusion (MCAO) to induce stroke.
- Post-stroke, rats continued their assigned diets and were assessed daily for 8 weeks on the reaching task.
Main Results:
- Rats on the soy protein isolate diet (SP) exhibited significantly less severe motor deficits in the first week post-stroke compared to the casein diet group (CAS) (p<0.05).
- The study observed sustained dietary effects over an 8-week recovery period.
Conclusions:
- A soy protein-based diet demonstrates significant neuroprotective effects against middle cerebral artery occlusion (MCAO) stroke in a rat model.
- Dietary soy protein isolate may be a beneficial intervention for improving functional recovery after stroke.
