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Medical Sciences Commons

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Medical Neurobiology

Liberty University

2020

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Full-Text Articles in Medical Sciences

Adverse Aftereffects Of Methotrexate As Chemotherapy On Cognitive Deficits In Rat Models, Jubin Kang Apr 2020

Adverse Aftereffects Of Methotrexate As Chemotherapy On Cognitive Deficits In Rat Models, Jubin Kang

Senior Honors Theses

Patients with acute lymphoblastic leukemia have a high five-year survival rate thanks to methotrexate (MTX). However, cognitive side effects are reported, characterized as chemo brain. The study investigated if impulsiveness is part of the aberrant cognitive functions after being exposed to MTX in the early stage of physical development. Adolescent rats were injected with either phosphate-buffered saline (PBS) or MTX. The novel object recognition (NOR) task was conducted a month after the injections to measure the memory deficits. The discounting task was performed after the rats completed training on a fixed-ratio one schedule for both levers. The NOR test showed …


Anxiety In Alzheimer's Disease, Zachary Cooper Apr 2020

Anxiety In Alzheimer's Disease, Zachary Cooper

Senior Honors Theses

Researchers familiar with Alzheimer’s disease have often noted the presence of comorbid anxiety symptomatology. Likewise, the occurrence of anxiety before the development of Alzheimer’s disease has been prevalent enough to warrant attention. This review seeks to elaborate on the pathophysiology behind these two conditions, and to accentuate overlapping aspects that promote a causal relationship between these two pathologies on the macroscopic and cellular levels. Subsequent evidence will show that these pathologies are not independent of each other, and that cellular mechanisms of pathology hint at their interrelatedness. Areas requiring further research that would clarify the relationship between Clinical Anxiety and …