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Neuroscience and Neurobiology

Dysphagia

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Full-Text Articles in Pathological Conditions, Signs and Symptoms

Effect Of Dosage On Severity Of Dysphagia In A Toxicological Rat Model Of Parkinson's Disease, Shivam Patel, Taylor Good, Nicholas Zanghi, Francois Gould May 2024

Effect Of Dosage On Severity Of Dysphagia In A Toxicological Rat Model Of Parkinson's Disease, Shivam Patel, Taylor Good, Nicholas Zanghi, Francois Gould

Rowan-Virtua Research Day

Parkinson’s Disease (PD) is a prevalent and devastating neurodegenerative disorder that causes progressively worsening motor symptoms affecting locomotor and oropharyngeal function. There is limited research in animal models on swallowing dysfunction in PD. To examine how neurodegeneration in PD produces progressive impairment in the oropharyngeal and locomotor processes, rotenone, a type II mitochondrial inhibitor, was injected into Lewis rat models to reproduce a parkinsonian phenotype. We hypothesized that the animal models injected with the rotenone will exhibit both oropharyngeal dysfunction and locomotor deficiency with an increased deficit that correlates with prolonged treatment. We utilized 18 rats receiving either 2.75 mg/kg …


Swallowing Disrupts Tongue-Jaw Coordination During Chewing In A Rat Model Of Parkinson's Disease, Meejan Palhang, N. Charles, Francois Gould May 2023

Swallowing Disrupts Tongue-Jaw Coordination During Chewing In A Rat Model Of Parkinson's Disease, Meejan Palhang, N. Charles, Francois Gould

Rowan-Virtua Research Day

The primary motor symptoms of Parkinson’s disease, including bradykinesia, rigidity, and tremor, are associated with difficulties regulating transitions between motor behaviors due to basal ganglia dysfunction. Chewing and swallowing, which are disordered in most patients with Parkinson’s disease, are two complex motor behaviors which overlap in time and share some neuromuscular components. The objective of this study is to identify how Parkinson’s disease affects the coordination of chewing and swallowing. We hypothesize that as a result of impaired regulation of shift between motor patterns, chewing cycles that occur with a swallow will be more affected that chewing cycles occurring in …