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Articles 1 - 4 of 4
Full-Text Articles in Other Cell and Developmental Biology
A Persistent Homology Framework For Scrna-Seq: Assessing Clustering Robustness And Quantifying Preprocessing And Integration Effects On Topological Features., Jonah Daneshmand
A Persistent Homology Framework For Scrna-Seq: Assessing Clustering Robustness And Quantifying Preprocessing And Integration Effects On Topological Features., Jonah Daneshmand
Electronic Theses and Dissertations
As single-cell RNA sequencing (scRNA-seq) data expands, robust methods for integrating diverse datasets are critical. This dissertation applies Persistent Homology (PH), a technique from Topological Data Analysis (TDA), to a collection of scRNA-seq datasets spanning eight tissue types to quantify how data integration affects topological features and biological interpretability. We assessed global topological structure using Betti curves, Euler characteristics, and persistence landscapes across raw, normalized, and integrated data representations. Our analysis revealed a performance inversion: while conventional methods excelled on unintegrated data, high-granularity topological methods, particularly those sensitive to global data structure, became superior after integration. This suggests a synergy …
Investigating The Mechanisms Through Which Autophagy Controls Lipid Levels In Cyst Stem Cells., Jared Langdon
Investigating The Mechanisms Through Which Autophagy Controls Lipid Levels In Cyst Stem Cells., Jared Langdon
College of Arts & Sciences Senior Theses
With an increase in the average age of the American population, incidents of age-related diseases and illnesses are rising across healthcare communities. Addressing these pathologies with a focus towards novel treatments warrants further research into their mechanistic origins. Lipid build up within cells has been correlated with increased risk for certain pathologies, namely Alzheimer's disease and type-2 diabetes (Demarco, 2020). In this study I aimed to investigate the origin of the increase in lipids, specifically we consider the effects of lipid build up on the maintenance of stem cell populations.
Functional Role Of Ppal And Potential For Moss In Industrial Applications., Susana Perez Martinez
Functional Role Of Ppal And Potential For Moss In Industrial Applications., Susana Perez Martinez
Electronic Theses and Dissertations
This dissertation is an examination and characterization of the functional roles of PPAL. PROTEIN PRENYLTRANSFERASE ALPHA SUBUNIT-LIKE (PPAL) is a recently discovered gene. PPAL homologs are present in all plants and many animals, where its function is largely unknown. It is possible that PPAL could participate in prenylation processes since it shares similarity to the α subunits of known prenylation enzymes. Prenylation is a post-translational modification of proteins that involves the addition of a lipid moiety to proteins to facilitate membrane targeting and association and promote protein-protein interactions. Prenylation has important roles in plant growth and development, including …
Serpinb1 Effects On Human Pancreatic Ductal Cells, Praneeth Goli
Serpinb1 Effects On Human Pancreatic Ductal Cells, Praneeth Goli
College of Arts & Sciences Senior Theses
Rebuilding or expanding the body’s ability to regulate blood glucose levels by restoring or increasing the body’s ability to produce insulin, long-term, would be a major advancement in diabetes (type-1 and type-2) treatment and could serve as a potential cure [1]. Therefore, the holy grail of diabetes treatment and cure research is to regenerate or increase the insulin producing cells in diabetic individuals (type-1 and type-2) [1, 2]. SerpinB1 has been implicated as a biomolecular signal that stimulates an increase in insulin cell mass in murine and zebrafish models that exhibit physiologically normal compensatory islet hyperplasia. In humans, SerpinB1 is …