An Analysis Of Mayo Clinic Search Query Logs For Cardiovascular Diseases, 2014 Wright State University
An Analysis Of Mayo Clinic Search Query Logs For Cardiovascular Diseases, Ashutosh Sopan Jadhav, Amit P. Sheth, Jyotishman Pathak
Increasingly, individuals are taking active participation in learning and managing their health by leveraging online resources. Understanding online health information searching behavior can help us to study what health topics users search for and how search queries are formulated. In this work, we analyzed 10 million cardiovascular diseases (CVD) related search queries from MayoClinic.com. We performed semantic analysis on the queries using UMLS MetaMap and analyzed structural and textual properties as well as linguistic characteristics of the queries.
Online Information Searching For Cardiovascular Diseases: An Analysis Of Mayo Clinic Search Query Logs, 2014 Wright State University
Online Information Searching For Cardiovascular Diseases: An Analysis Of Mayo Clinic Search Query Logs, Ashutosh Sopan Jadhav, Amit P. Sheth, Jyotishman Pathak
Since the early 2000’s, Internet usage for health information searching has increased significantly. Studying search queries can help us to understand users “information need” and how do they formulate search queries (“expression of information need”). Although cardiovascular diseases (CVD) affect a large percentage of the population, few studies have investigated how and what users search for CVD. We address this knowledge gap in the community by analyzing a large corpus of 10 million CVD related search queries from MayoClinic.com. Using UMLS MetaMap and UMLS semantic types/concepts, we developed a rule-based approach to categorize the queries into 14 ...
Characterization Of The Transcriptome, Nucleotide Sequence Polymorphism, And Natural Selection In The Desert Adapted Mouse Peromyscus Eremicus, Matthew D. Macmanes, Michael B. Eisen
Molecular, Cellular and Biomedical Sciences Scholarship
As a direct result of intense heat and aridity, deserts are thought to be among the most harsh of environments, particularly for their mammalian inhabitants. Given that osmoregulation can be challenging for these animals, with failure resulting in death, strong selection should be observed on genes related to the maintenance of water and solute balance. One such animal, Peromyscus eremicus, is native to the desert regions of the southwest United States and may live its entire life without oral fluid intake. As a first step toward understanding the genetics that underlie this phenotype, we present a characterization of the P ...
Investigating The Role Of Micrornas In The Response To Nitrogen Deprivation In The Green Alga Chlamydomonas Reinhardtii, 2014 University of Nebraska - Lincoln
Investigating The Role Of Micrornas In The Response To Nitrogen Deprivation In The Green Alga Chlamydomonas Reinhardtii, Adam Voshall
Dissertations and Theses in Biological Sciences
Microalgae are gaining attention as a potential feedstock for the production of biodiesel, mainly derived from triacylglycerols (TAG). In many algae, TAG synthesis increases dramatically upon certain stresses but this is often accompanied by growth retardation. Rational improvements to strain productivity are limited by the scant knowledge on algal lipid metabolism and gene regulatory mechanisms. In this context, systems-level approaches aimed at understanding and modeling metabolic and regulatory networks may enable hypothesis-driven genetic engineering strategies. The green microalga Chlamydomonas reinhardtii accumulates significant amounts of TAGs under nutrient starvation and provides a genetically tractable model for manipulating biosynthetic pathways. In order ...
Graphical User Interface On Analysis Of Mechanics And Dynamics Of Biopolymers In Living Cells, 2014 Purdue University
Graphical User Interface On Analysis Of Mechanics And Dynamics Of Biopolymers In Living Cells, Peter D. Russel, Shubham Agrawal, Taeyoon Kim, Abdel-Rahman Hassan
The Summer Undergraduate Research Fellowship (SURF) Symposium
The mechanical properties of cells depend on the qualities of filamentous-actin (f-actin for short), among other cytoskeletal polymers. The ability to quickly determine f-actin qualities in a sample will help cellular biologists with cytoskeletal protein research. The goal of this project is to create a Matlab program which would allow researchers to determine, with limited manual input, the average filament length and persistence lengths of selected filaments. Through the graphical user interface, the user loads the image stack and can optimize the tracking result by altering several expectations of the program such as the expected contrast between the filament and ...
Analysis Of Mechanics And Dynamics Of Biopolymers In Living Cells, 2014 Purdue University
Analysis Of Mechanics And Dynamics Of Biopolymers In Living Cells, Shubham Agrawal, Peter D. Russel, Abdel-Rahman Hassan, Taeyoon Kim
The Summer Undergraduate Research Fellowship (SURF) Symposium
F-actin polymers in the cytoskeleton provide mechanical strength and deformability to cells. Thus, understanding their dynamic responses to intracellular and extracellular cues is of critical importance for studying the biological and mechanical behaviors of cells. Unfortunately, to date, no computer software can provide researchers with adequate means to measure these responses since in vivo F-actin cytoskeleton is quite dynamic and complex unlike in vitro actin networks. We aim at developing a tool which would allow researchers to semi-automatically analyze time-lapse microscope images of these F-actin polymers and thus evaluate the length and stochastic dynamics of F-actins (filament elongation, shrinkage and ...
Applying Novel Tree-Based Frameworks To Big Data For Classification Of Heart Failure Patients And Prediction Of Clinical Responses, Yan Zhang, Nicholas Downing, Emily Bucholz, Suganthi Balasubramanian, Shu-Xia Li, Tara Liptak, Harlan Krumholz, Mark Gerstein
Yale Day of Data
Over 5 million Americans suffer from heart failure, a condition with a 5-year survival that eclipses all cancers apart from that of lung cancer. Conventional understanding of heart failure is simplistic: it is viewed as a single syndrome, despite real heterogeneity. In addition, models predicting outcomes focus on dichotomous results, like 30-day readmission. A novel approach to classification of heart failure may improve our ability to target interventions, improve patient experiences, and predict outcomes.
The Healthcare Cost and Utilization Project is a family of administrative claims databases that describes patient demographics, comorbidities, procedures, acute care utilization and outcomes, such as ...
Crisprseek: A Bioconductor Package To Identify Target-Specific Guide Rnas For Crispr-Cas9 Genome-Editing Systems, 2014 University of Massachusetts Medical School
Crisprseek: A Bioconductor Package To Identify Target-Specific Guide Rnas For Crispr-Cas9 Genome-Editing Systems, Lihua Julie Zhu, Benjamin R. Holmes, Neil Aronin, Michael H. Brodsky
Program in Gene Function and Expression Publications and Presentations
CRISPR-Cas systems are a diverse family of RNA-protein complexes in bacteria that target foreign DNA sequences for cleavage. Derivatives of these complexes have been engineered to cleave specific target sequences depending on the sequence of a CRISPR-derived guide RNA (gRNA) and the source of the Cas9 protein. Important considerations for the design of gRNAs are to maximize aimed activity at the desired target site while minimizing off-target cleavage. Because of the rapid advances in the understanding of existing CRISPR-Cas9-derived RNA-guided nucleases and the development of novel RNA-guided nuclease systems, it is critical to have computational tools that can accommodate a ...
Evaluation Of Microarray-Based Dna Methylation Measurement Using Technical Replicates: The Atherosclerosis Risk In Communities (Aric) Study, 2014 College of Saint Benedict and Saint John’s University
Evaluation Of Microarray-Based Dna Methylation Measurement Using Technical Replicates: The Atherosclerosis Risk In Communities (Aric) Study, Maitreyee Bose, Chong Wu, James S. Pankow, Ellen W. Demerath, Jan Bressler, Myriam Fornage, Megan L. Grove, Thomas H. Mosley, Chindo Hicks, Kari North, Wen Hong Kao, Yu Zhang, Eric Boerwinkle, Weihua Guan
Computer Science Faculty Publications
Background: DNA methylation is a widely studied epigenetic phenomenon; alterations in methylation patterns influence human phenotypes and risk of disease. As part of the Atherosclerosis Risk in Communities (ARIC) study, the Illumina Infinium HumanMethylation450 (HM450) BeadChip was used to measure DNA methylation in peripheral blood obtained from ~3000 African American study participants. Over 480,000 cytosine-guanine (CpG) dinucleotide sites were surveyed on the HM450 BeadChip. To evaluate the impact of technical variation, 265 technical replicates from 130 participants were included in the study.
Results: For each CpG site, we calculated the intraclass correlation coefficient (ICC) to compare variation of methylation ...
Applications And Improvements In The Molecular Modeling Of Protein And Ligand Interactions, 2014 University of Tennessee, Knoxville
Applications And Improvements In The Molecular Modeling Of Protein And Ligand Interactions, Jason Bret Harris
Understanding protein and ligand interactions is fundamental to treat disease and avoid toxicity in biological organisms. Molecular modeling is a helpful but imperfect tool used in computer-aided toxicology and drug discovery. In this work, molecular docking and structural informatics have been integrated with other modeling methods and physical experiments to better understand and improve predictions for protein and ligand interactions. Results presented as part of this research include:
1.) an application of single-protein docking for an intermediate state structure, specifically, modeling an intermediate state structure of alpha-1-antitrypsin and using the resulting model to virtually screen for chemical inhibitors that can ...
World Wide Diversity Of Phytophthora Capsici, 2014 University of Tennessee, Knoxville
World Wide Diversity Of Phytophthora Capsici, Dylan B. Storey
The plant pathogen Phytophthora capsici is a genetically diverse organism that is a global problem. It effects many crops across the Solanacea, Cucurbitacea, andLeguminosea. As a result of the large diversity between individuals (and by extension populations) it has been previously near impossible to make meaningful comparisons between individuals of geographically distinct locations. Here we present the results of applying Next Generation Sequencing (NGS) technologies to a representative panel of isolates. This information and data is further used to demonstrate how this diversity has a functionally relevent effect on a class of proteins responsible for the infectious process. We ...
Genomic Characterization Of Polyps In Familial Adenomatous Polyposis Patients And Identification Of Candidate Chemopreventive Drugs, 2014 Texas Medical Center Library
Genomic Characterization Of Polyps In Familial Adenomatous Polyposis Patients And Identification Of Candidate Chemopreventive Drugs, Francis A. San Lucas
UT GSBS Dissertations and Theses (Open Access)
Familial adenomatous polyposis (FAP) is an autosomal dominant disease characterized by APC germline mutations and the development of hundreds to thousands of premalignant adenomas in the gastrointestinal tract at a young age. If left untreated, these patients inevitably develop colon cancer (CRC) and small bowel tumors. We performed exome sequencing of samples from 12 FAP patients to characterize adenomas and to identify candidate genes of adenoma development that may serve as potential targets for chemoprevention drug development. From each patient, a blood and at least one polyp were sequenced with a total of 25 polyps analyzed. In some cases, normal ...
The Prediction Of B-Cell Epitope Via Biostatistical And Bioinformatic Methodology And Applications, 2014 University of Nebraska - Lincoln
The Prediction Of B-Cell Epitope Via Biostatistical And Bioinformatic Methodology And Applications, Bo Yao
Dissertations and Theses in Biological Sciences
By creating antibodies against antigens, B-cells, also named B-lymphocytes, play an important role in the immune system to fight against foreign invasion to the host body. Within the antigen specific to a certain B-cell antibody, the sections recognized and bound by antibody are called B-cell epitopes. As antigenic determinants, B-cell epitope identification is of vital importance in many immunological processes, such as vaccine design, immunodiagnostic tests, and antibody production. Towards this goal, biologists and immunologists have applied a variety of methods to identify B-cell epitopes through both experiments and bioinformatic predictions.
There are two kinds of B-cell epitopes: linear (continuous ...
Integrating Domain Knowledge To Improve Signal Detection From Electronic Health Records For Pharmacovigilance, 2014 Texas Medical Center Library
Integrating Domain Knowledge To Improve Signal Detection From Electronic Health Records For Pharmacovigilance, Ning Shang
UT SBMI Dissertations (Open Access)
The intent of this dissertation is to make a contribution to the field of pharmacovigilance. Pharmacovigilance, also known as post-marketing drug surveillance, is the process of continued monitoring for adverse drug reactions (ADRs) after drugs are released into the market. An ADR is a harmful or unpleasant reaction related to the use of a medical product. ADRs were reported to be between the fourth and sixth leading cause of death in the United States in 1994, accounting for 3-7% of medical hospital admissions. On account of the practice of pharmacovigilance, Vioxx (Rofecoxib) and Avandia (Rosiglitazone) are examples of high profile ...
Assisting Coordination During Crisis: A Domain Ontology Based Approach To Infer Resource Needs From Tweets, 2014 Wright State University
Assisting Coordination During Crisis: A Domain Ontology Based Approach To Infer Resource Needs From Tweets, Shreyansh Bhatt, Hemant Purohit, Andrew Hampton, Valerie L. Shalin, Amit P. Sheth, John Flach
Ubiquitous social media during crises provides citizen reports on the situation, needs and supplies. Previous research extracts resource needs directly from the text (e.g. "Power cut to Coney Island and Brighton beach" indicates a power need). This approach assumes that citizens derive and write about specific needs from their observations, properly specified for the emergency response system, an assumption that is not consistent with general conversational behavior. In our study, Twitter messages (tweets) from Hurricane Sandy in 2012 clearly indicate power blackouts, but not their probable implications (e.g. loss of power to hospital life support systems). We use ...
Calmodulation Meta-Analysis: Predicting Calmodulin Binding Via Canonical Motif Clustering, 2014 University of Massachusetts Medical School
Calmodulation Meta-Analysis: Predicting Calmodulin Binding Via Canonical Motif Clustering, Karen Mruk, Brian M. Farley, Alan W. Ritacco, William R. Kobertz
Biochemistry and Molecular Pharmacology Publications and Presentations
The calcium-binding protein calmodulin (CaM) directly binds to membrane transport proteins to modulate their function in response to changes in intracellular calcium concentrations. Because CaM recognizes and binds to a wide variety of target sequences, identifying CaM-binding sites is difficult, requiring intensive sequence gazing and extensive biochemical analysis. Here, we describe a straightforward computational script that rapidly identifies canonical CaM-binding motifs within an amino acid sequence. Analysis of the target sequences from high resolution CaM-peptide structures using this script revealed that CaM often binds to sequences that have multiple overlapping canonical CaM-binding motifs. The addition of a positive charge discriminator ...
Semantic Modelling Of Smart City Data, 2014 Wright State University
Semantic Modelling Of Smart City Data, Stefan Bischof, Athanasios Karapantelakis, Cosmin-Septimiu Nechifor, Amit P. Sheth, Alessandra Mileo, Payam Barnaghi
Cities present an opportunity for rendering Web of Things-enabled services. According to the World Health Organization, population in cities will double by the middle of this century, while cities deal with increasingly pressing issues such as environmental sustainability, economic growth and citizen mobility. In this paper, we propose a discussion around the need for common semantic descriptions for smart city data to facilitate future services in "smart cities". We present examples of data that can be collected from cities, discuss issues around this data and put forward some preliminary thoughts for creating a semantic description model to describe and help ...
Active Learning With Efficient Feature Weighting Methods For Improving Data Quality And Classification Accuracy, 2014 Wright State University
Active Learning With Efficient Feature Weighting Methods For Improving Data Quality And Classification Accuracy, Justin Martineau, Lu Chen, Doreen Cheng, Amit P. Sheth
Many machine learning datasets are noisy with a substantial number of mislabeled instances. This noise yields sub-optimal classification performance. In this paper we study a large, low quality annotated dataset, created quickly and cheaply using Amazon Mechanical Turk to crowdsource annotations. We describe computationally cheap feature weighting techniques and a novel non-linear distribution spreading algorithm that can be used to iteratively and interactively correcting mislabeled instances to significantly improve annotation quality at low cost. Eight different emotion extraction experiments on Twitter data demonstrate that our approach is just as effective as more computationally expensive techniques. Our techniques save a considerable ...
Semantics-Enhanced Geoscience Interoperability, Analytics, And Applications, 2014 Wright State University
Semantics-Enhanced Geoscience Interoperability, Analytics, And Applications, T. K. Prasad, Amit P. Sheth
We present our research ideas for developing cyberinfrastructure for Geoscience applications developed in the context of the EarthCube initiative, and our NSF-sponsored work on incorporating spatial-temporal-thematic semantics for enhanced querying and feature extraction from sensor data streams.
Differential Gene Expression Analysis And Clinical Correlations Within Endemic Burkitt Lymphoma, 2014 University of Massachusetts Medical School
Differential Gene Expression Analysis And Clinical Correlations Within Endemic Burkitt Lymphoma, Yasin Kaymaz, Cliff I. Oduor, John Vulule, Juliana A. Otieno, Ann M. Moormann, Jeffrey A. Bailey
UMass Center for Clinical and Translational Science Research Retreat
Endemic Burkitt lymphoma (eBL) is the most common pediatric cancer in equatorial Africa and is associated with malaria and Epstein-Barr virus co-infections. Molecular alterations within the eBL tumor genome and transcriptome have not been adequately investigated or compared to sporadic Burkitt lymphoma (sBL). Given that eBL has distinct clinical presentations in the jaw as opposed to the abdomen which are associated with survival, we hypothesize that transcriptome sequencing (RNA-seq) and potentially underlying genetic alterations will enhance our understanding of pathogenesis. Our results compare genome-wide RNA transcript abundances between eBL tumors from children (ages 6-7 yrs) with Stage I (Jaw tumor ...