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Neuroscience and Neurobiology

St. John's University

Theses and Dissertations

Theses/Dissertations

2021

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Alpha-Synuclein Multimerization Is Dependent On Structural Characteristics Of Repeated Ktkegv Regions, Benjamin Ira Rosen Jan 2021

Alpha-Synuclein Multimerization Is Dependent On Structural Characteristics Of Repeated Ktkegv Regions, Benjamin Ira Rosen

Theses and Dissertations

Parkinson’s disease (PD) is the most common movement disorder and is characterized by neuronal loss and the presence of Lewy bodies in dopaminergic neurons of the substantia nigra pars compacta. PD is a chronic, progressive, and irreversible neurodegenerative disorder associated with the selective loss of dopaminergic neurons. Initially described in an Ayurvedic medical treatise and Galen’s writings, and later by James Parkinson in 1817, the most common symptoms of PD are resting tremors, abnormal posture and gait, and muscle rigidity. Approximately 1 million people are living with PD in the United States and worldwide estimates are between 7 and 10 …


Microrna Regulation And Cellular Proteostasis In Parkinson's Disease, Alberim Kurtishi Jan 2021

Microrna Regulation And Cellular Proteostasis In Parkinson's Disease, Alberim Kurtishi

Theses and Dissertations

Parkinson’s disease (PD) is a chronic and progressive neurodegenerative disorder predominately affecting the aging population. It is the second most common neurodegenerative disorder after Alzheimer’s disease (AD) affecting over 1 million individuals in the US alone. Recent studies have tried to understand the exact nature in which healthy neurons transition to a degenerative state in PD. There are a multitude of combinatory factors that can lead to the development of PD including environmental factors, genetic factors, and aging. The majority of PD cases are sporadic in nature, however familial cases account for 5-10% of total PD cases world-wide. The hallmark …


Rna Splicing In Neuron Physiology And Neurodegenerative Diseases, Md Faruk Hossain Jan 2021

Rna Splicing In Neuron Physiology And Neurodegenerative Diseases, Md Faruk Hossain

Theses and Dissertations

Gene expression is regulated at multiple levels, including transcription, RNA editing, pre-mRNA splicing, mRNA export, translation, and posttranslational modifications. Alternative splicing is a process by which exons can be included or excluded, giving rise to multiple mRNA isoforms from the same transcript. Alternative splicing is an important mechanism in developmental, tissue- and cell-specific control of gene expression, and it is key for expanding proteomic diversity and complexity from a limited number of genes. Moreover, more than 95% of multiexon genes undergo alternative splicing in humans, and about half of all disease-causing point mutations in humans affect pre-mRNA splicing, including neurological …