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Articles 1 - 30 of 400
Full-Text Articles in Genetic Processes
Terahertz Electromagnetic Effects And Chirality-Induced Spin Selectivity In Dna, F. Matthew Mihelic Md
Terahertz Electromagnetic Effects And Chirality-Induced Spin Selectivity In Dna, F. Matthew Mihelic Md
Faculty Publications
The effects of terahertz electromagnetic stimulation of the DNA molecule can be understood through modeling of the quantum logical mechanics of the DNA molecule. Coherent conduction of electron spin states along the aromatic nucleotide base pairs and chirality-induced spin selectivity are two characteristics of the DNA molecule that are involved in the precise separation of the double-stranded DNA molecule at a specific location. Such modeling can inform predictions of DNA strand separation and has significant implications for understanding DNA transcription bubble formation.
Evaluating The Accuracy Of Face2gene Phenotyping Tools In South African Children With Neurodevelopmental Disorders, Hendrike Mcdonald, Zandrè Bruwer, Michal Zieff, Emma Eastman, Brigitte Melly, Rizqa Sulaiman-Bardien, Karen Fieggen, Shahida Moosa, Charles Newton, Amina Abubakar
Evaluating The Accuracy Of Face2gene Phenotyping Tools In South African Children With Neurodevelopmental Disorders, Hendrike Mcdonald, Zandrè Bruwer, Michal Zieff, Emma Eastman, Brigitte Melly, Rizqa Sulaiman-Bardien, Karen Fieggen, Shahida Moosa, Charles Newton, Amina Abubakar
Institute for Human Development, East Africa
Objectives Computational phenotyping tools, like Face2Gene, are increasingly used to support genetic diagnosis by analysing facial features. These tools perform well in Global North populations but are less accurate in other groups. This study aimed to assess the performance of Face2Gene’s DeepGestalt, FeatureMatcher, and D-Score in South African children with neurodevelopmental disorders (NDDs) and unaffected controls.
Methods Facial photographs of 301 children from the NeuroDev South Africa study were analysed including 36 children with NDDs with a confirmed molecular diagnosis, 176 with NDDs without a confirmed molecular diagnosis, and 89 controls. Diagnostic accuracy of DeepGestalt and FeatureMatcher was assessed by …
A Blended Genome And Exome Sequencing Method Captures Genetic Variation In An Unbiased And Cost-Effective Manner, Toni Boltz, Benjamin Chu, Matthew Defelice, Calwing Liao, Julia Sealock, Robert Ye, Jacqueline Goldstein, Lerato Majara, Jack Fu, Lukoye Atwoli
A Blended Genome And Exome Sequencing Method Captures Genetic Variation In An Unbiased And Cost-Effective Manner, Toni Boltz, Benjamin Chu, Matthew Defelice, Calwing Liao, Julia Sealock, Robert Ye, Jacqueline Goldstein, Lerato Majara, Jack Fu, Lukoye Atwoli
Internal Medicine, East Africa
Here we developed and deployed the blended genome exome (BGE) method, a DNA library approach that generates low-pass whole-genome (1–4× mean depth) and deep whole-exome (30–40× mean depth) data in a single sequencing run. BGE is cost-effective, empowers most genomic discoveries possible with deep whole-genome sequencing and captures global common single-nucleotide polymorphism diversity. We applied BGE to sequence >53,000 samples from the PUMAS Project (Populations Underrepresented in Mental Illness Associations Studies), including African, African American and Latin American populations. Imputed genotypes showed high concordance with Illumina Global Screening Array calls (R2 ≥ 95% for minor allele frequency ≥1%; …
The Role Of The Hs1582 Enhancer In The Regulation Of Spry1 In Human Neural Crest Cells, Maia Williams, Vershanna E Morris
The Role Of The Hs1582 Enhancer In The Regulation Of Spry1 In Human Neural Crest Cells, Maia Williams, Vershanna E Morris
Summer Research Program Abstracts
No abstract provided.
Missense Mutations In The Snca Gene: Molecular Mechanisms And Clinical Implications, Pranaya Gade, Nishant Patel, Jamir Pitton Rissardo, Jorge Patino, Ana Fornari-Caprara, Ian Walker
Missense Mutations In The Snca Gene: Molecular Mechanisms And Clinical Implications, Pranaya Gade, Nishant Patel, Jamir Pitton Rissardo, Jorge Patino, Ana Fornari-Caprara, Ian Walker
Rowan-Virtua Research Day
The SNCA gene on chromosome 4 encodes the alpha-synuclein (αSyn) protein, which plays a central role in the pathogenesis of synucleinopathies, including Parkinson’s disease (PD), dementia with Lewy bodies (DLB), and multiple system atrophy (MSA). While αSyn has established roles in synaptic vesicle dynamics and neuronal signaling, alterations in SNCA regulation and sequence contribute to protein misfolding, aggregation, and loss of function. Alterations in secondary and tertiary structure, as well as protein aggregation, affect biochemical interactions, ultimately leading to pathogenesis. This review outlines the molecular architecture of the SNCA gene, including regulatory regions, alternative splicing, and untranslated regions that influence …
Human Biology Group Project, Wroud Saleh
Human Biology Group Project, Wroud Saleh
Open Educational Resources
No abstract provided.
Comparing Stress Levels And Experiences Between Mothers And Fathers Of Children With Angelman Syndrome, Katherine Helen Fix
Comparing Stress Levels And Experiences Between Mothers And Fathers Of Children With Angelman Syndrome, Katherine Helen Fix
Theses and Dissertations
Angelman syndrome (AS) is a neurogenetic disorder characterized by significant developmental and cognitive impairments, disruptive behaviors, and a hallmark happy demeanor. Past studies have shown that certain features of AS contribute to increased parental stress. Other studies report that in general the stress of parents of children with disabilities is influenced by stereotypical gender roles surrounding factors including daily care taking tasks, financial responsibility, and medical care involvement. This study aimed to compare perspectives among mothers and fathers of individuals with AS to identify discrepancies and themes relating to stress, specific hardships, and caregiving roles. Parents of children with AS …
Using Genetically Diverse Mice To Examine The Effects Of Environmental Enrichment Of The Transcriptome, Michael Richard Leonardo
Using Genetically Diverse Mice To Examine The Effects Of Environmental Enrichment Of The Transcriptome, Michael Richard Leonardo
Theses, Dissertations and Capstones
Environmental impoverishment is a model of early life stress with direct consequences across a wide range of neurological and physiological conditions. Neuron morphology and density as well as anxiety disorders and addiction have shown to have significant relationships with environmental impoverishment models. Conversely, environmental enrichment confers therapeutic benefits that are protective across these conditions. There is an observed spectrum of resistance or vulnerability to the effects of housing conditions across populations, indicating genetics as an influential factor. Understanding this interaction is critical for deepening our knowledge of how genes and environment interact in ways that confer resistance or vulnerability, and …
Corticobasal Syndrome With Mixed Pathology In The Absence Of Grn Mutation: A Clinico-Pathological Case Of Ftld-Tdp With Coexisting Alzheimer’S And Lewy Body Pathology, Hugo Zamarron, David Irwin, Jeffery Phillips, Edward Lee, Matthew Tisdall, Corey Mcmillan
Corticobasal Syndrome With Mixed Pathology In The Absence Of Grn Mutation: A Clinico-Pathological Case Of Ftld-Tdp With Coexisting Alzheimer’S And Lewy Body Pathology, Hugo Zamarron, David Irwin, Jeffery Phillips, Edward Lee, Matthew Tisdall, Corey Mcmillan
Research Colloquium
Background: Corticobasal syndrome (CBS) is a neurodegenerative disorder characterized by often asymmetric fronto-pariteal and extra-pyramidal features that is traditionally associated with tauopathy, but pathological findings are heterogenous, including other forms of frontotemporal lobar degeneration (FTLD) and mixed pathologies of aging. We present clinical, radiographic, and histopathologic features of asymmetry in a unique patient with CBS and underlying FTLD with TDP-43 pathology (FTLD-TDP), co-occurring with other age-related pathologies.
Case Presentation: A 76-year-old man presented with progressive cognitive and motor dysfunction including asymmetric parkinsonism, left-sided dystonia and rigidity, apraxia, visuospatial impairment, and a subtle social disorder including apathy and social withdrawal. The …
The Role Of Ceramides As Biomarkers And Therapeutic Targets For Cardiometabolic Disease And Its Intersection With Cellular Aging, Youssef Moustafa Shalaby
The Role Of Ceramides As Biomarkers And Therapeutic Targets For Cardiometabolic Disease And Its Intersection With Cellular Aging, Youssef Moustafa Shalaby
Thesis/ Dissertation Defenses
Ceramides (Cer), a subclass of sphingolipids with potent bioactive properties, have gained recognition as key players in the pathogenesis of cardiometabolic diseases (CMD). They modulate critical cellular functions such as apoptosis, inflammation, insulin signaling, and oxidative stress. This dissertation explores the dual role of Cer as both early diagnostic markers and therapeutic targets, bridging clinical insights with mechanistic understanding through a combination of human and experimental studies.
A highly sensitive liquid chromatography–tandem mass spectrometry (LC-MS/MS) method was developed and validated to quantify intracellular levels of specific Cer species, including CerC16:0, CerC18:0, CerC22:0, CerC24:0, and CerC24:1. This method was translated into …
Pcsk9–Dyslipidemia Interplay In Children And Adolescents With Type 1 Diabetes: A Potential Modulator Of Vasculopathy, Eman Ramadan
Pcsk9–Dyslipidemia Interplay In Children And Adolescents With Type 1 Diabetes: A Potential Modulator Of Vasculopathy, Eman Ramadan
Pharmacy
BACKGROUND: Proprotein convertase subtilisin/kexin type-9 (PCSK9) has recently emerged as an important vasculopathy modulator. However, limited data exist on its level and expression in children and adolescents with type 1 diabetes (T1D). AIM: To assess serum PCSK9 and gene expression among children and adolescents with T1D and correlate them with glycemia, dyslipidemia, and microvascular complications. METHODS: Fifty children and adolescents with T1D were compared to 50 matched healthy controls. Serum PCSK9 enzyme-linked immunosorbent assay (ELISA) and reverse transcription polymerase chain reaction (RT-PCR) gene expression, glycated-hemoglobin, fundus, urinary albumin-to-creatinine ratio (uACR) and fasting lipids were assessed with calculation of the estimated-glucose …
An Integrative Genomics Approach For The Discovery Of Potential Clinically Actionable Diagnostic And Prognostic Biomarkers In Colorectal Cancer, Mark Fertel, Duaa Mohammad Alawad, Chindo Hicks
An Integrative Genomics Approach For The Discovery Of Potential Clinically Actionable Diagnostic And Prognostic Biomarkers In Colorectal Cancer, Mark Fertel, Duaa Mohammad Alawad, Chindo Hicks
School of Graduate Studies Faculty Publications
Background: Despite remarkable progress in clinical management of patients and intensified screening, colorectal cancer remains the second most common cause of cancer-related death in the United States. The recent surge of next generation sequencing has enabled genomic analysis of colorectal cancer genomes. However, to date, there is little information about leveraging gene expression data and integrating it with somatic mutation information to discover potential biomarkers and therapeutic targets. Here, we integrated gene expression data with somatic mutation information to discover potential diagnostic and prognostic biomarkers and molecular drivers of colorectal cancer. Methods: We used publicly available gene expression and somatic …
Advancing Novel Contrast Agents For Applications In Fluorescence-Guided Neurosurgery Using Fluorescence Cryotomography, Augustino Vittorio Scorzo
Advancing Novel Contrast Agents For Applications In Fluorescence-Guided Neurosurgery Using Fluorescence Cryotomography, Augustino Vittorio Scorzo
Dartmouth College Ph.D Dissertations
Fluorescence guided surgery (FGS) is an emerging surgical technique that aims to help surgeons identify tissue types to assist in surgical decision making - ideally providing “cut-by-color” guidance. A primary application for this approach is the identification of tumor tissue to achieve more accurate and complete tumor removal while simultaneously minimizing damage to surrounding normal tissue. The cornerstone of tumor visualization for FGS is the administration of fluorescent contrast agents, or in some cases metabolic precursors, designed to accumulate specifically in tumor tissue, and a wide range of agents that use different targeting mechanisms are currently under investigation. Although these …
Correlation Between Clinical Classification And Genetic Analysis Of Familial Hypercholesterolemia In Premature Coronary Artery Disease In A Cohort Of Egyptian Patients, Eman Ramadan
Pharmacy
Background: Familial Hypercholesterolemia (FH) is a major risk factor for premature Coronary Artery Disease (CAD). Genetic testing is the gold standard for FH diagnosis. The purpose of this Observational Analytical Cross-sectional study was to estimate the proportion of genetically confirmed Familial Hypercholesterolemia in Patients with premature Coronary Artery Disease in a cohort of Egyptian patients.
Methods: Next generation sequencing (NGS) was conducted for 7 genes (LDLR, PCSK9, APOB, APOE, ABCG5, ABCG8 and LDLRAP1) commonly associated with FH in 94 patients with Premature CAD from 2 tertiary hospitals in Cairo and Alexandria, Egypt. Individuals were clinically assessed using the Dutch Lipid …
Pharmacogenetics Of Plasma Dolutegravir Exposure During 1-Month Rifapentine/Isoniazid Treatment Of Latent Tuberculosis, Nia Covington, Anne F Luetkemeyer, Marjorie Z Imperial, Rodney Dawson, Yoninah Cramer, Sue Rosenkranz, Susan Swindells, Irina Gelmanova, Anchalee Avihingsanon, Roberto C Arduino, Wadzanai Samaneka, Kelly E Dooley, Rada Savic, Anthony T Podany, David W Haas
Pharmacogenetics Of Plasma Dolutegravir Exposure During 1-Month Rifapentine/Isoniazid Treatment Of Latent Tuberculosis, Nia Covington, Anne F Luetkemeyer, Marjorie Z Imperial, Rodney Dawson, Yoninah Cramer, Sue Rosenkranz, Susan Swindells, Irina Gelmanova, Anchalee Avihingsanon, Roberto C Arduino, Wadzanai Samaneka, Kelly E Dooley, Rada Savic, Anthony T Podany, David W Haas
Faculty, Staff and Student Publications
In Advancing Clinical Therapeutics Globally protocol A5372, a pharmacokinetic study of dolutegravir with 1-month of daily rifapentine/isoniazid, twice-daily dolutegravir offset the induction effects of rifapentine on plasma dolutegravir trough concentrations (C trough ). Here, we characterize the impact on dolutegravir C trough of UGT1A1 , AADAC , and NAT2 polymorphisms that affect dolutegravir, rifapentine, and isoniazid, respectively. People with HIV receiving dolutegravir-based antiretroviral therapy with an indication to treat latent tuberculosis underwent pharmacokinetic sampling during dolutegravir 50 mg once daily alone, and on day 28 of dolutegravir 50 mg twice daily with rifapentine/isoniazid. Multivariable linear regression models characterized genetic associations …
Whole Genome Sequencing Identifies Monogenic Disease In 56.1% Of Families With Early-Onset Steroid-Resistant Nephrotic Syndrome, Eman Ramadan
Pharmacy
Genetic causes of steroid-resistant-nephrotic-syndrome (SRNS) represent a rapidly growing number of monogenic diseases. The reported diagnostic yield of various studies applying genetic panels and exome-sequencing to diagnose SRNS is usually < 30%. We performed genome-sequencing in a cohort of Egyptian SRNS patients. We recruited 47 SRNS patients belonging to 41 unrelated families [28 males/19 females; median (range): 6 (0.5-22 years)]. We established a pipeline for genome sequencing, bioinformatics analysis, variant curation and protein modeling at the Egypt Center for Research and Regenerative Medicine (ECRRM). Disease-causing variants were detected in 27/47 patients (57.4%) belonging to 23/41 families (56.1%), including nine novel variants in NPHS1, NPHS2, COL4A3, MYO1E, NUP93, PLCE1, PODXL, SMARCAL1 and WT1. Novel variants were confirmed by Sanger sequencing and were segregated in families of affected patients. NPHS2 was the most common causative gene in 8/23 (34.8%) of confirmed families, followed by NPHS1, WT1, and SMARCAL1 in 2/23 families (8.7%) each. All detected missense variants were evaluated through protein modeling and were predicted deleterious. Our study expanded the spectrum of SRNS disease-causing variants and revealed a monogenic cause in 56.1% of investigated families. In our cohort, no deep intronic or regulatory variants were detected by genome-sequencing. Pursuing genetic diagnosis in SRNS patients is crucial to inform clinical decision making, genetic counseling, transplantation strategy and prenatal diagnosis thus improving clinical outcome of affected patients.
A Multi-Level Gene-Diet Interaction Analysis Of Fish Oil And 14 Polyunsaturated Fatty Acid Traits Identifies The Fads And Gpr12 Loci, Susan Adanna Ihejirika, Alexandra Huong Chiang, Aryaman Singh, Eunice Stephen, Han Chen, Kaixiong Ye
A Multi-Level Gene-Diet Interaction Analysis Of Fish Oil And 14 Polyunsaturated Fatty Acid Traits Identifies The Fads And Gpr12 Loci, Susan Adanna Ihejirika, Alexandra Huong Chiang, Aryaman Singh, Eunice Stephen, Han Chen, Kaixiong Ye
Faculty, Staff and Student Publications
Fish oil supplements (FOS) are known to alter circulating levels of polyunsaturated fatty acids (PUFAs) but in a heterogeneous manner across individuals. These varied responses may result from unidentified gene-FOS interactions. To identify genetic factors that interact with FOS to alter the circulating levels of PUFAs, we performed a multi-level genome-wide interaction study (GWIS) of FOS on 14 plasma measurements in 200,060 unrelated European-ancestry individuals from the UK Biobank. From our single-variant tests, we identified genome-wide significant interacting SNPs (p < 5 × 10-8) in the FADS1-FADS2 gene cluster for total omega-3, omega-3%, docosapentaenoic acid (DHA), DHA%, and the omega-6 to omega-3 ratio. Among the interaction signals for omega-3%, the lead SNP, rs35473591 (C>CT, CT allele frequency = 0.34), had a lower association effect size in the FOS-taking group (β = 0.35 for …
Ion-Dna Interactions As A Key Determinant Of Uracil Dna Glycosylase Activity., Sharon N Greenwood, Alexis N Dispensa, Matthew Wang, Justin R Bauer, Timothy D Vaden, Zhiwei Liu, Brian P Weiser
Ion-Dna Interactions As A Key Determinant Of Uracil Dna Glycosylase Activity., Sharon N Greenwood, Alexis N Dispensa, Matthew Wang, Justin R Bauer, Timothy D Vaden, Zhiwei Liu, Brian P Weiser
Rowan-Virtua School of Osteopathic Medicine Departmental Research
Because of their ubiquitous presence, ions interact with numerous macromolecules in the cell and affect critical biological processes. Here, we discuss how cations including Mg2+ alter the enzymatic activity of a DNA glycosylase by tuning its affinity for DNA. The response of uracil DNA glycosylase (UNG2) to Mg2+ ions in solution is biphasic and paradoxical, where low concentrations of the ion stimulate the enzyme, but high concentrations inhibit the enzyme. We analyzed this phenomenon by modeling experimental data with a statistical framework that we empirically derived to understand molecular systems that display biphasic behaviors. Parameters from our statistical …
Role Of Evolutionarily Conserved G4 Structures In Enhancer-Promotor Interactions, Shahem Alqudah
Role Of Evolutionarily Conserved G4 Structures In Enhancer-Promotor Interactions, Shahem Alqudah
Honors Theses
Gene regulation is governed by complex networks of interactions between enhancers and promoters, regions of the genome that are typically distant from one another yet functionally linked through chromatin looping. Recent research has revealed the significant role of Gquadruplexes (G4s) in facilitating these interactions. This thesis explores the role of long Gquadruplex regions (LG4s) in enhancer–promoter communication, proposing that these regions mediate physical interactions between enhancers and their target promoters through direct G4:G4 interactions. Using a chromatin conformation capture (EQuIP-seq), electrophoretic mobility shift assays (EMSA), and luciferase reporter assays, the study demonstrates that LG4s may drive gene expression by promoting …
A Comparative Analysis Of Nf-Κb1 Gene Regulatory Sequence Methylation In Normotensive And Hypertensive Kenyans, Aaryan Barlas Piracha
A Comparative Analysis Of Nf-Κb1 Gene Regulatory Sequence Methylation In Normotensive And Hypertensive Kenyans, Aaryan Barlas Piracha
Honors Theses
Accounting for the majority of deaths worldwide, non-communicable diseases (NCDs) present the greatest health challenge of the twenty-first century. Specifically, cardiovascular diseases (CVDs) exceed all other NCDs in annual deaths and especially affect low- and middle-income countries (LMICs). Hypertension, being the primary risk factor for CVD, affects over 75% of adults in LMICs due to inadequate health care and preventative measures. Additionally, epigenetic modifications of DNA are important mechanisms that regulate gene expression; DNA methylation, in particular, affects cytosine residues in cytosine-phosphate-guanine (CpG) islands on regulatory sequences. Previous research in our laboratory analyzed percent methylation at 8 different CpG islands …
Elucidating The Multi-Omics Of Early-Onset Colorectal Cancer, Jumanah Alshenaifi
Elucidating The Multi-Omics Of Early-Onset Colorectal Cancer, Jumanah Alshenaifi
Dissertations and Theses (Open Access)
The incidence and mortality rates of sporadic early-onset colorectal cancer have increased in recent decades, but there is no clear etiological basis for this trend. EOCRC is commonly defined as colon and rectal cancers diagnosed before the age of 50 years. The rising incidence of EOCRC has made it the second most common cancer and the third leading cause of cancer death in this age group. The rising incidence of EOCRC is also documented internationally in more than 20 countries across different continents. Clinically, EOCRC has a distinct, more aggressive clinical profile than LOCRC. While approximately 15% of EOCRC cases …
Developing A Small Molecule To Inhibit Hsf1 Expression In Cancer And Evaluating Natural Genetic Variation In Small Molecule Toxicity., Michaela Kendal Foley
Developing A Small Molecule To Inhibit Hsf1 Expression In Cancer And Evaluating Natural Genetic Variation In Small Molecule Toxicity., Michaela Kendal Foley
Theses and Dissertations
Each year cancer affects nearly 20 million people worldwide and genetic differences across populations can impact cancer onset and progression. Specifically, tumors with high levels of HSF1, the master regulator of the cytoprotective heat shock response (HSR), are correlated with poor patient outcomes in multiple cancers such as prostate, breast, and melanoma. Subsequently, the development of pharmacological inhibitors of HSF1 represents a promising strategy for anticancer therapeutics. Using a luciferase-based transcriptional reporter, two small molecule libraries were screened for inhibitors of HSF1 expression in human embryonic kidney cells, yielding ten compounds that decrease HSF1 expression. To identify if cancer lines …
Genome-Wide Association Meta-Analyses Of Drug-Resistant Epilepsy, Costin Leu, Andreja Avbersek, Remi Stevelink, Helena Martins Custodio, Siwei Chen, Doug Speed, Caitlin A Bennett, Lina Jonsson, Unnur Unnsteinsdóttir, Andrea L Jorgensen, Gianpiero L Cavalleri, Norman Delanty, John J Craig, Chantal Depondt, Michael R Johnson, Bobby P C Koeleman, Emadeldin Hassanin, Maryam Erfanian Omidvar, Roland Krause, Holger Lerche, Anthony G Marson, Terence J O'Brien, Josemir W Sander, Graeme J Sills, Pasquale Striano, Federico Zara, Hreinn Stefansson, Kari Stefansson, Patrick May, Benjamin M Neale, Dennis Lal, Samuel F Berkovic, Epi25 Collaborative, Epipgx Consortium, Sanjay M Sisodiya
Genome-Wide Association Meta-Analyses Of Drug-Resistant Epilepsy, Costin Leu, Andreja Avbersek, Remi Stevelink, Helena Martins Custodio, Siwei Chen, Doug Speed, Caitlin A Bennett, Lina Jonsson, Unnur Unnsteinsdóttir, Andrea L Jorgensen, Gianpiero L Cavalleri, Norman Delanty, John J Craig, Chantal Depondt, Michael R Johnson, Bobby P C Koeleman, Emadeldin Hassanin, Maryam Erfanian Omidvar, Roland Krause, Holger Lerche, Anthony G Marson, Terence J O'Brien, Josemir W Sander, Graeme J Sills, Pasquale Striano, Federico Zara, Hreinn Stefansson, Kari Stefansson, Patrick May, Benjamin M Neale, Dennis Lal, Samuel F Berkovic, Epi25 Collaborative, Epipgx Consortium, Sanjay M Sisodiya
Faculty, Staff and Student Publications
Background: Epilepsy is one of the most common neurological disorders, affecting over 50 million people worldwide. One-third of people with epilepsy do not respond to currently available anti-seizure medications, constituting one of the most important problems in epilepsy. Little is known about the molecular pathology of drug resistance in epilepsy, in particular, possible underlying genetic factors are largely unknown.
Methods: We performed a genome-wide association study (GWAS) in two epilepsy cohorts of European ancestry, comparing drug-resistant (N = 4208) to drug-responsive individuals (N = 2618) followed by meta-analyses across the studies. Next, we performed subanalyses split into two broad subtypes: …
Heredity, Chris Burley, Lisa K. Lashley, Charles J. Golden
Heredity, Chris Burley, Lisa K. Lashley, Charles J. Golden
Essays in Developmental Psychology
Heredity is the sum of biological processes that result in the transmission of genetic traits from parents to their offspring, making each individual unique. Through the transmission of genetic traits, heredity is responsible for each individual’s genotype, as well as his or her phenotype. The genes that are passed down from generation to generation have a considerable influence on psychological characteristics including intelligence, personality, mental health, and patterns of behavior. However, when considering psychological characteristics passed down through heredity, it is vital that environmental aspects are also considered.
Investigating Genetic Regulators Of Crystal Cell Development In Drosophila Melanogaster, Andrea Feria, Nyla Walbrook, Anisa Turaeva, Rebecca Spokony
Investigating Genetic Regulators Of Crystal Cell Development In Drosophila Melanogaster, Andrea Feria, Nyla Walbrook, Anisa Turaeva, Rebecca Spokony
Publications and Research
Crystal cells, a subset of Drosophila melanogaster hemocytes, are important for melanization, a crucial immune response. While the genetic regulation of crystal cell develop remains incompletely understood, this study investigates the functions of five candidate genes: ACXB, ACXA, Gp210, CG4390, and Cyp4s3; identidied through previous genome-wide association studies. Using the Gal4/UAS system along with RNA interference (RNAi), we exclusively knocked down each gene in third instar larvae and quantified crystal cell populations following heat shock-induced melanization. Our results imply that the knockdown of ACXB and ACXA significantly increased crystal cell counts in both sexes, suggesting these genes either act as …
A Long Non-Coding Erna Forms R-Loops To Shape Emotional Experience-Induced Behavioral Adaptations, Rose Marie Akiki
A Long Non-Coding Erna Forms R-Loops To Shape Emotional Experience-Induced Behavioral Adaptations, Rose Marie Akiki
MUSC Theses and Dissertations
Emotional experiences often evoke neural plasticity that supports adaptive changes in behavior, including maladaptive plasticity associated with mood and substance use disorders. These adaptations are supported in part by experience-dependent activation of immediate-early response genes, such as Npas4. We discovered that a conserved, long non-coding enhancer RNA (lnc-eRNA) transcribed from an activity-sensitive enhancer produces DNA-RNA hybrid R-loop structures that support 3D chromatin-looping of the enhancer and proximal promoter and stimulus-induced, rapid Npas4 gene induction. We also show that this Npas4 lnceRNA and its R-loops are required for the development of behavioral adaptations produced by chronic psychosocial stress or cocaine exposure, …
Deciphering Genotype-Phenotype Connections: Leveraging Pangenomes And Comprehensive Genome Variation, Flavia Villani
Deciphering Genotype-Phenotype Connections: Leveraging Pangenomes And Comprehensive Genome Variation, Flavia Villani
Alternative Theses and Dissertations (AETDs)
My thesis explores the application of advanced techniques for discovery of genetic variation and pangenomic approaches to enhance our understanding of genetic variation and genotype-phenotype relationships in two key model organisms: the HXB/BXH recombinant inbred rat family and the BXD mouse family. Through deep sequencing and innovative computational methods, I constructed com- prehensive pangenome graphs that captured genetic diversity beyond what is accessible through conventional single-reference approaches. In the HXB rat family, I identified approximately 200 million base pairs of sequence absent from the reference genome and discovered novel variants associated with glucose metabolism and chromogranin expression through phenome-wide association …
Rare Damaging Ccr2 Variants Are Associated With Lower Lifetime Cardiovascular Risk, Marios K Georgakis, Rainer Malik, Omar El Bounkari, Natalie R Hasbani, Jiang Li, Jennifer E Huffman, Gabrielle Shakt, Reinier W P Tack, Tamara N Kimball, Yaw Asare, Alanna C Morrison, Noah L Tsao, Renae Judy, Braxton D Mitchell, Huichun Xu, May E Montasser, Ron Do, Eimear E Kenny, Ruth J F Loos, James G Terry, John Jeffrey Carr, Joshua C Bis, Bruce M Psaty, W T Longstreth, Kendra A Young, Sharon M Lutz, Michael H Cho, Jai Broome, Alyna T Khan, Fei Fei Wang, Nancy Heard-Costa, Sudha Seshadri, Ramachandran S Vasan, Nicholette D Palmer, Barry I Freedman, Donald W Bowden, Lisa R Yanek, Brian G Kral, Lewis C Becker, Patricia A Peyser, Lawrence F Bielak, Farah Ammous, April P Carson, Michael E Hall, Laura M Raffield, Stephen S Rich, Wendy S Post, Russel P Tracy, Kent D Taylor, Xiuqing Guo, Michael C Mahaney, Joanne E Curran, John Blangero, Shoa L Clarke, Jeffrey W Haessler, Yao Hu, Themistocles L Assimes, Charles Kooperberg, Jürgen Bernhagen, Christopher D Anderson, Scott M Damrauer, Ramin Zand, Jerome I Rotter, Paul S De Vries, Martin Dichgans
Rare Damaging Ccr2 Variants Are Associated With Lower Lifetime Cardiovascular Risk, Marios K Georgakis, Rainer Malik, Omar El Bounkari, Natalie R Hasbani, Jiang Li, Jennifer E Huffman, Gabrielle Shakt, Reinier W P Tack, Tamara N Kimball, Yaw Asare, Alanna C Morrison, Noah L Tsao, Renae Judy, Braxton D Mitchell, Huichun Xu, May E Montasser, Ron Do, Eimear E Kenny, Ruth J F Loos, James G Terry, John Jeffrey Carr, Joshua C Bis, Bruce M Psaty, W T Longstreth, Kendra A Young, Sharon M Lutz, Michael H Cho, Jai Broome, Alyna T Khan, Fei Fei Wang, Nancy Heard-Costa, Sudha Seshadri, Ramachandran S Vasan, Nicholette D Palmer, Barry I Freedman, Donald W Bowden, Lisa R Yanek, Brian G Kral, Lewis C Becker, Patricia A Peyser, Lawrence F Bielak, Farah Ammous, April P Carson, Michael E Hall, Laura M Raffield, Stephen S Rich, Wendy S Post, Russel P Tracy, Kent D Taylor, Xiuqing Guo, Michael C Mahaney, Joanne E Curran, John Blangero, Shoa L Clarke, Jeffrey W Haessler, Yao Hu, Themistocles L Assimes, Charles Kooperberg, Jürgen Bernhagen, Christopher D Anderson, Scott M Damrauer, Ramin Zand, Jerome I Rotter, Paul S De Vries, Martin Dichgans
Faculty, Staff and Student Publications
BACKGROUND: Previous work has shown a role of CCL2, a key chemokine governing monocyte trafficking, in atherosclerosis. However, it remains unknown whether targeting CCR2, the cognate receptor of CCL2, provides protection against human atherosclerotic cardiovascular disease.
METHODS: Computationally predicted damaging or loss-of-function (REVEL > 0.5) variants within CCR2 were detected in whole-exome-sequencing data from 454,775 UK Biobank participants and tested for association with cardiovascular endpoints in gene-burden tests. Given the key role of CCR2 in monocyte mobilization, variants associated with lower monocyte count were prioritized for experimental validation. The response to CCL2 of human cells transfected with these variants was tested …
The Application And Innovation Of Casgevy On Sickle Cell Disease, Emily Tackett, Le Thien Truc Pham, Hannah Salamie, Arin Wade, Allison Provenzale, Alexander Defranco, Ashley Jacob, Brianna Lu, Joshua Honaker, Amy Stockert
The Application And Innovation Of Casgevy On Sickle Cell Disease, Emily Tackett, Le Thien Truc Pham, Hannah Salamie, Arin Wade, Allison Provenzale, Alexander Defranco, Ashley Jacob, Brianna Lu, Joshua Honaker, Amy Stockert
Pharmacy and Wellness Review
Casgevy, sickle cell anemia, SCA, sickle cell disease, SCD, CRISPR/Cas9, hydroxyurea, hemoglobin, Hb, l-glutamine, voxelotor, Crizanlizumab, Lyfgenia, stem cells, genetics, pharmacogenetics, pharmacogenomics
Genetic Profile Of Premature Coronary Artery Disease Associated With Dyslipidemia: A Preliminary Study In Tertiary Hospitals, Eman Ramadan
Genetic Profile Of Premature Coronary Artery Disease Associated With Dyslipidemia: A Preliminary Study In Tertiary Hospitals, Eman Ramadan
Pharmacy
Background Familial Hypercholesteolemia (FH) represents significant risk for premature Coronary Artery Disease (CAD) development. Testing for causative mutations is the gold standard diagnostic test for FH. This study aimed to estimate the prevalence of genetically-confirmed Familial Hypercholesterolemia in premature Coronary Artery Disease patients in an Egyptian cohort. Methods: An Observational Analytical Cross-sectional study was conducted at Kobri Alqoba military hospital in Egypt in 2022, including 47 participants. All participants underwent Next generation sequencing for 7 genes linked with FH development in 47 patients with Premature CAD. Results: 9 Variants of Uncertain Significance (VUS) were found in LDLR, APOB, and APOE …