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Articles 31 - 60 of 717
Full-Text Articles in Medical Sciences
Parents’ Perspectives On The Utility Of Genomic Sequencing In The Neonatal Intensive Care Unit, Amy A. Lemke, Michelle L. Thompson, Emily C. Gimpel, Katelyn C. Mcnamara, Carla A. Rich, Candice R. Finnila, Meagan E. Cochran, James M.J. Lawlor, Kelly M. East, Kevin M. Bowling, Donald R. Latner, Susan M. Hiatt, Michelle D. Amaral, Whitley V. Kelley, Veronica Greve, David E. Gray, Stephanie A. Felker, Hannah Meddaugh, Ashley Cannon, Amanda Luedecke, Kelly E. Jackson, Laura G. Hendon, Hillary M. Janani, Marla Johnston, Lee Ann Merin, Sarah L. Deans, Carly Tuura, Trent Hughes
Parents’ Perspectives On The Utility Of Genomic Sequencing In The Neonatal Intensive Care Unit, Amy A. Lemke, Michelle L. Thompson, Emily C. Gimpel, Katelyn C. Mcnamara, Carla A. Rich, Candice R. Finnila, Meagan E. Cochran, James M.J. Lawlor, Kelly M. East, Kevin M. Bowling, Donald R. Latner, Susan M. Hiatt, Michelle D. Amaral, Whitley V. Kelley, Veronica Greve, David E. Gray, Stephanie A. Felker, Hannah Meddaugh, Ashley Cannon, Amanda Luedecke, Kelly E. Jackson, Laura G. Hendon, Hillary M. Janani, Marla Johnston, Lee Ann Merin, Sarah L. Deans, Carly Tuura, Trent Hughes
School of Medicine Faculty Publications
Background: It is critical to understand the wide-ranging clinical and non-clinical effects of genome sequencing (GS) for parents in the NICU context. We assessed parents’ experiences with GS as a first-line diagnostic tool for infants with suspected genetic conditions in the NICU. Methods: Parents of newborns (N = 62) suspected of having a genetic condition were recruited across five hospitals in the southeast United States as part of the SouthSeq study. Semi-structured interviews (N = 78) were conducted after parents received their child’s sequencing result (positive, negative, or variants of unknown significance). Thematic analysis was performed on all interviews. Results: …
Sars-Cov-2 Next Generation Sequencing (Ngs) Data From Clinical Isolates From The East Texas Region Of The United States, Rob E. Carpenter, Vaibhav K. Tamrakar, Advanta Genetics
Sars-Cov-2 Next Generation Sequencing (Ngs) Data From Clinical Isolates From The East Texas Region Of The United States, Rob E. Carpenter, Vaibhav K. Tamrakar, Advanta Genetics
Human Resource Development Faculty Publications and Presentations
The SARS-CoV-2 virus has evolved throughout the pandemic and is likely to continue evolving into new variants. Some of these variants may affect functional properties, including infectivity, interactions with host immunity, and disease severity. And compromised vaccine efficacy is an emerging concern with every new viral variant. Next-generation sequencing (NGS) has emerged as the tool of choice for discovering new variants and understanding the transmission dynamics of SARS-CoV-2. Deciphering the SARS-CoV-2 genome has enabled epidemiological survivance and forecast of altered etiologically. Clinical presentations of the infection are influenced by comorbidities such as age, immune status, diabetes, and the infecting variant. …
Genome Editing For Cystic Fibrosis, Guoshun Wang
Genome Editing For Cystic Fibrosis, Guoshun Wang
School of Medicine Faculty Publications
Cystic fibrosis (CF) is a monogenic recessive genetic disorder caused by mutations in the CF Transmembrane-conductance Regulator gene (CFTR). Remarkable progress in basic research has led to the discovery of highly effective CFTR modulators. Now ~90% of CF patients are treatable. However, these modulator therapies are not curative and do not cover the full spectrum of CFTR mutations. Thus, there is a continued need to develop a complete and durable therapy that can treat all CF patients once and for all. As CF is a genetic disease, the ultimate therapy would be in-situ repair of the genetic lesions in the …
X-Linked Variations In Shroom4 Are Implicated In Congenital Anomalies Of The Urinary Tract And The Anorectal, Cardiovascular And Central Nervous Systems, Caroline M. Kolvenbach, Tim Felger, Luca Schierbaum, Isabelle Thiffault, T Pastinen, Maria Szczepańska, Marcin Zaniew, Piotr Adamczyk, Allan Bayat, Öznur Yilmaz, Tobias T. Lindenberg, Holger Thiele, Friedhelm Hildebrandt, Katrin Hinderhofer, Ute Moog, Alina C Hilger, Bonnie Sullivan, Lauren E. Bartik, Piotr Gnyś, Phillip Grote, Benjamin Odermatt, Heiko M. Reutter, Gabriel C. Dworschak
X-Linked Variations In Shroom4 Are Implicated In Congenital Anomalies Of The Urinary Tract And The Anorectal, Cardiovascular And Central Nervous Systems, Caroline M. Kolvenbach, Tim Felger, Luca Schierbaum, Isabelle Thiffault, T Pastinen, Maria Szczepańska, Marcin Zaniew, Piotr Adamczyk, Allan Bayat, Öznur Yilmaz, Tobias T. Lindenberg, Holger Thiele, Friedhelm Hildebrandt, Katrin Hinderhofer, Ute Moog, Alina C Hilger, Bonnie Sullivan, Lauren E. Bartik, Piotr Gnyś, Phillip Grote, Benjamin Odermatt, Heiko M. Reutter, Gabriel C. Dworschak
Manuscripts, Articles, Book Chapters and Other Papers
Background: SHROOM4 is thought to play an important role in cytoskeletal modification and development of the early nervous system. Previously, single-nucleotide variants (SNVs) or copy number variations (CNVs) in SHROOM4 have been associated with the neurodevelopmental disorder Stocco dos Santos syndrome, but not with congenital anomalies of the urinary tract and the visceral or the cardiovascular system.
Methods: Here, exome sequencing and CNV analyses besides expression studies in zebrafish and mouse and knockdown (KD) experiments using a splice blocking morpholino in zebrafish were performed to study the role of SHROOM4 during embryonic development.
Results: In this study, we identified putative …
Irf7 And Unc93b1 Variants In An Infant With Recurrent Herpes Simplex Virus Infection., Megan H. Tucker, Wei Yu, Heather Menden, Sheng Xia, Carl F. Schreck, Margaret Gibson, Daniel A. Louiselle, T Pastinen, Nikita Raje, Venkatesh Sampath
Irf7 And Unc93b1 Variants In An Infant With Recurrent Herpes Simplex Virus Infection., Megan H. Tucker, Wei Yu, Heather Menden, Sheng Xia, Carl F. Schreck, Margaret Gibson, Daniel A. Louiselle, T Pastinen, Nikita Raje, Venkatesh Sampath
Manuscripts, Articles, Book Chapters and Other Papers
Neonatal herpes simplex virus (HSV) infection is a devastating disease with substantial morbidity and mortality. The genetic basis of susceptibility to HSV in neonates remains undefined. We evaluated a male infant with neonatal skin/eye/mouth (SEM) HSV-1 disease, who had complete recovery after acyclovir but developed HSV-1 encephalitis at 1 year of age. An immune workup showed an anergic PBMC cytokine response to TLR3 stimulation but no other TLRs. Exome sequencing identified rare missense variants in IFN-regulatory factor 7 (IRF7) and UNC-93 homolog B1 (UNC93B1). PBMC single-cell RNA-Seq done during childhood revealed decreased expression of several innate immune genes and a …
An Unknown Essential Function Of Trna Splicing Endonuclease Is Linked To The Integrated Stress Response And Intron Debranching, Jennifer E Hurtig, Ambro Van Hoof
An Unknown Essential Function Of Trna Splicing Endonuclease Is Linked To The Integrated Stress Response And Intron Debranching, Jennifer E Hurtig, Ambro Van Hoof
Journal Articles
tRNA splicing endonuclease (TSEN) has a well-characterized role in transfer RNA (tRNA) splicing but also other functions. For yeast TSEN, these other functions include degradation of a subset of mRNAs that encode mitochondrial proteins and an unknown essential function. In this study, we use yeast genetics to characterize the unknown tRNA-independent function(s) of TSEN. Using a high-copy suppressor screen, we found that sen2 mutants can be suppressed by overexpression of SEN54. This effect was seen both for tRNA-dependent and tRNA-independent functions indicating that SEN54 is a general suppressor of sen2, likely through structural stabilization. A spontaneous suppressor screen identified mutations …
Development And Validation Of An Ultrahigh-Performance Liquid Chromatography–Tandem Mass Spectrometry Method To Investigate The Plasma Pharmacokinetics Of A KCa2.2/KCa2.3 Positive Allosteric Modulator In Mice, Mohammad Asikur Rahman, Devaraj Venkatapura Chandrashekar, Young-Woo Nam, Basir Syed, David Salehi, Hamidreza Montazeri Aliabadi, Miao Zhang, Reza Mehvar
Development And Validation Of An Ultrahigh-Performance Liquid Chromatography–Tandem Mass Spectrometry Method To Investigate The Plasma Pharmacokinetics Of A KCa2.2/KCa2.3 Positive Allosteric Modulator In Mice, Mohammad Asikur Rahman, Devaraj Venkatapura Chandrashekar, Young-Woo Nam, Basir Syed, David Salehi, Hamidreza Montazeri Aliabadi, Miao Zhang, Reza Mehvar
Pharmacy Faculty Articles and Research
Rationale
There is currently no treatment for spinocerebellar ataxias (SCAs), which are a group of genetic disorders that often cause a lack of coordination, difficulty walking, slurred speech, tremors, and eventually death. Activation of KCa2.2/KCa2.3 channels reportedly exerts beneficial effects in SCAs. Here, we report the development and validation of an analytical method for quantitating a recently developed positive allosteric modulator of KCa2.2/KCa2.3 channels (compound 2q) in mouse plasma.
Methods
Mouse plasma samples (10 μL) containing various concentrations of 2q were subjected to protein precipitation in the presence of a structurally similar …
The Presence Of Childhood Obesity In Nebraska And The Physiological Repercussions Of The Disease, Madison R. Bezousek
The Presence Of Childhood Obesity In Nebraska And The Physiological Repercussions Of The Disease, Madison R. Bezousek
Honors Theses
Childhood Obesity can cause lifelong repercussions in children and adults. There has been stigma around the causes of obesity and its relation to lifestyle choices, without consideration of the genetic and syndromic causes. In this literature review the causes of obesity were investigated, along with the effect on the physiological systems and the enviornmental factors that are continuing the obesity epidemic. Preventing and treating lifestyle obesity is something that is seen to have the greatest effect on youth, especially with intergenerational obesity. Nebraska schools have implemented programs to encourage healthy living, and ongoing research is being implemented to reduce the …
Refinement Of Saliva Microrna Biomarkers For Sports-Related Concussion, Steven D. Hicks, Cayce Onks, Raymond Y. Kim, Kevin J. Kim, Kevin J. Zhen, Jayson Loeffert, Andrea C. Loeffert, Robert P. Olympia, Gregory Fedorchak, Samantha Devita, Zofia Gagnon, Callan Mcloughlin, Miguel M. Madeira, Scott L. Zuckerman, Timothy Lee, Matthew Heller, Chuck Monteith, Thomas R. Campbell, Christopher Neville, Elise Fengler, Michael N. Dretsch
Refinement Of Saliva Microrna Biomarkers For Sports-Related Concussion, Steven D. Hicks, Cayce Onks, Raymond Y. Kim, Kevin J. Kim, Kevin J. Zhen, Jayson Loeffert, Andrea C. Loeffert, Robert P. Olympia, Gregory Fedorchak, Samantha Devita, Zofia Gagnon, Callan Mcloughlin, Miguel M. Madeira, Scott L. Zuckerman, Timothy Lee, Matthew Heller, Chuck Monteith, Thomas R. Campbell, Christopher Neville, Elise Fengler, Michael N. Dretsch
Rehabilitation Sciences Faculty Publications
Purpose
Recognizing sport-related concussion (SRC) is challenging and relies heavily on subjective symptom reports. An objective, biological marker could improve recognition and understanding of SRC. There is emerging evidence that salivary micro-ribonucleic acids (miRNAs) may serve as biomarkers of concussion; however, it remains unclear whether concussion-related miRNAs are impacted by exercise. We sought to determine whether 40 miRNAs previously implicated in concussion pathophysiology were affected by participation in a variety of contact and non-contact sports. Our goal was to refine a miRNA-based tool capable of identifying athletes with SRC without the confounding effects of exercise.
Methods
This case-control study harmonized …
The Ethical Dilemmas Epigenetic Editing In Utero Presents To Christians, Victoria Hendrix
The Ethical Dilemmas Epigenetic Editing In Utero Presents To Christians, Victoria Hendrix
Senior Honors Theses
The development of CRISPR epigenetic editing technology was initially impactful due to its potential for disease treatment. However, despite the potential benefits of epigenetic technology, there exist ethical dilemmas surrounding its use in utero. The review of the ethical dilemmas of epigenetic editing in utero from a Christian perspective showed that research in epigenetic editing is promising, yet fraught with peril. The basic ethical issues of epigenetic editing in utero stem from its inaccuracy, lack of research concerning its effects on offspring, an incomplete understanding of gene interactions, and its connection to eugenics. The ethical concerns particularly relevant to Christians …
The Revolutionary Genome Editor: Crispr-Cas9 Systems, Grace Spade
The Revolutionary Genome Editor: Crispr-Cas9 Systems, Grace Spade
Senior Honors Theses
Genetic engineering is the modification of an organism's genetic material to alter its traits through adding, deleting, or changing specific genes. CRISPR-Cas9 systems are groundbreaking tools for genetic engineering, in short utilizing a molecule called RNA to guide a protein called Cas9 to a specific location in DNA to add, delete, or replace genes. The history of how the CRISPR-Cas9 systems came into existence, how it was adapted from a natural defense system in bacteria, and its mechanism of action in both are explained. Its applications, both present and future, competing genetic modifiers, advantages and disadvantages, and the ethical dilemmas …
Potential Mirna Biomarkers And Therapeutic Targets For Early Atherosclerotic Lesions, Genesio M. Karere, Jeremy P. Glenn, Ge Li, Ayati Konar, John L. Vandeberg, Laura A. Cox
Potential Mirna Biomarkers And Therapeutic Targets For Early Atherosclerotic Lesions, Genesio M. Karere, Jeremy P. Glenn, Ge Li, Ayati Konar, John L. Vandeberg, Laura A. Cox
School of Medicine Publications and Presentations
Identification of potential therapeutic targets and biomarkers indicative of burden of early atherosclerosis that occur prior to advancement to life-threatening unstable plaques is the key to eradication of CAD prevalence and incidences. We challenged 16 baboons with a high cholesterol, high fat diet for 2 years and evaluated early-stage atherosclerotic lesions (fatty streaks, FS, and fibrous plaques, FP) in formalin-fixed common iliac arteries (CIA). We used small RNA sequencing to identify expressed miRNAs in CIA and in baseline blood samples of the same animals. We found 412 expressed miRNAs in CIA and 356 in blood samples. Eight miRNAs (miR-7975, -486-5p, …
H2s, Sg-1002, Protects Against Myocardial Oxidative Damage And Hypertrophy In Vitro Via Induction Of Cystathionine Β-Synthase And Antioxidant Proteins, Rahib K. Islam, Erinn Donnelly, Erminia Donnarumma, Fokhrul Hossain, Jason D. Gardner, Kazi N. Islam
H2s, Sg-1002, Protects Against Myocardial Oxidative Damage And Hypertrophy In Vitro Via Induction Of Cystathionine Β-Synthase And Antioxidant Proteins, Rahib K. Islam, Erinn Donnelly, Erminia Donnarumma, Fokhrul Hossain, Jason D. Gardner, Kazi N. Islam
School of Medicine Faculty Publications
Endogenously produced hydrogen sulfide (H2S) is critical for cardiovascular homeostasis. Therapeutic strategies aimed at increasing H2S levels have proven cardioprotective in models of acute myocardial infarction (MI) and heart failure (HF). The present study was undertaken to investigate the effects of a novel H2S prodrug, SG-1002, on stress induced hypertrophic signaling in murine HL-1 cardiac muscle cells. Treatment of HL-1 cells with SG-1002 under serum starvation without or with H2O2 increased the levels of H2S, H2S producing enzyme, and cystathionine β-synthase (CBS), as well as antioxidant protein levels, such as super oxide dismutase1 (SOD1) and catalase, and additionally decreased oxidative …
Modified Linear Peptides Effectively Silence Stat-3 In Breast Cancer And Ovarian Cancer Cell Lines, Dindyal Mandal, Sandeep Lohan, Muhammad Imran Sajid, Abdulelah Alhazza, Rakesh Kumar Tiwari, Keykavous Parang, Hamidreza Montazeri Aliabadi
Modified Linear Peptides Effectively Silence Stat-3 In Breast Cancer And Ovarian Cancer Cell Lines, Dindyal Mandal, Sandeep Lohan, Muhammad Imran Sajid, Abdulelah Alhazza, Rakesh Kumar Tiwari, Keykavous Parang, Hamidreza Montazeri Aliabadi
Pharmacy Faculty Articles and Research
RNA interference (RNAi) has drawn enormous attention as a powerful tool because of its capability to interfere with mRNA and protein production. However, designing a safe and efficient delivery system in RNAi therapeutics remains challenging. Herein, we have designed and synthesized several linear peptides containing tryptophan (W) and arginine (R) residues separated by the β-alanine (βA) spacer and attached to a lipophilic fatty acyl chain, cholesterol, or PEG. The peptide backbone sequences were: Ac-C-βA-βA-W4-βA-βA-R4-CO-NH2 and Ac-K-βA-βA-W4-βA-βA-R4-CO-NH2, with only a difference in N-terminal amino acid. The cysteine side chain in the first sequence was used for the conjugation with PEG2000 and …
Multi-Ancestry Transcriptome-Wide Association Analyses Yield Insights Into Tobacco Use Biology And Drug Repurposing, Fang Cheng, Xingyan Wang, Seon-Kyeong Jang, Bryan C. Quach, J. Dylan Weissenkampen, Chachrit Khunsriraksakul, Lina Yang, John Blangero, Joanne E. Curran, Ravindranath Duggirala, Juan M. Peralta
Multi-Ancestry Transcriptome-Wide Association Analyses Yield Insights Into Tobacco Use Biology And Drug Repurposing, Fang Cheng, Xingyan Wang, Seon-Kyeong Jang, Bryan C. Quach, J. Dylan Weissenkampen, Chachrit Khunsriraksakul, Lina Yang, John Blangero, Joanne E. Curran, Ravindranath Duggirala, Juan M. Peralta
School of Medicine Publications and Presentations
Most transcriptome-wide association studies (TWASs) so far focus on European ancestry and lack diversity. To overcome this limitation, we aggregated genome-wide association study (GWAS) summary statistics, whole-genome sequences and expression quantitative trait locus (eQTL) data from diverse ancestries. We developed a new approach, TESLA (multi-ancestry integrative study using an optimal linear combination of association statistics), to integrate an eQTL dataset with a multi-ancestry GWAS. By exploiting shared phenotypic effects between ancestries and accommodating potential effect heterogeneities, TESLA improves power over other TWAS methods. When applied to tobacco use phenotypes, TESLA identified 273 new genes, up to 55% more compared with …
Differential Strain-Dependent Ovarian And Metabolic Responses In A Mouse Model Of Pcos, April K. Binder, Danielle L. Peecher, Amanda J. Qvigstad, Silvia D. Gutierrez, Jennifer Magaña, David B. Banks, Kenneth S. Korach
Differential Strain-Dependent Ovarian And Metabolic Responses In A Mouse Model Of Pcos, April K. Binder, Danielle L. Peecher, Amanda J. Qvigstad, Silvia D. Gutierrez, Jennifer Magaña, David B. Banks, Kenneth S. Korach
Biology Faculty Scholarship
Several mouse models have been developed to study polycystic ovarian syndrome (PCOS), a leading cause of infertility in women. Treatment of mice with dihydrotestosterone (DHT) for 90-days causes ovarian and metabolic phenotypes similar to women with PCOS. We used this 90-day DHT treatment paradigm to investigate the variable incidence and heterogeneity in two inbred mouse strains, NOD/ShiLtJ and 129S1/SvlmJ. NOD mice naturally develop type 1 diabetes, and recent meta-analysis found increased androgen excess and PCOS in women with type 1 diabetes. 129S1 mice are commonly used in genetic manipulations. Both NOD and 129S1 DHT treated mice had early vaginal opening, …
Inhibition Of Ribosome Assembly Factor Pno1 By Crispr/Cas9 Technique Suppresses Lung Adenocarcinoma And Notch Pathway: Clinical Application, Sanjit K. Roy, Shivam Srivastava, Andrew Hancock, Anju Shrivastava, Jason Morvant, Sharmila Shankar, Rakesh K. Srivastava
Inhibition Of Ribosome Assembly Factor Pno1 By Crispr/Cas9 Technique Suppresses Lung Adenocarcinoma And Notch Pathway: Clinical Application, Sanjit K. Roy, Shivam Srivastava, Andrew Hancock, Anju Shrivastava, Jason Morvant, Sharmila Shankar, Rakesh K. Srivastava
School of Medicine Faculty Publications
Growth is crucially controlled by the functional ribosomes available in cells. To meet the enhanced energy demand, cancer cells re-wire and increase their ribosome biogenesis. The RNA-binding protein PNO1, a ribosome assembly factor, plays an essential role in ribosome biogenesis. The purpose of this study was to examine whether PNO1 can be used as a biomarker for lung adenocarcinoma and also examine the molecular mechanisms by which PNO1 knockdown by CRISPR/Cas9 inhibited growth and epithelial–mesenchymal transition (EMT). The expression of PNO1 was significantly higher in lung adenocarcinoma compared to normal lung tissues. PNO1 expression in lung adenocarcinoma patients increased with …
Advancement In Human Face Prediction Using Dna, Aamer Alshehhi, Aliya Almarzooqi, Khadija Alhammadi, Naoufel Werghi, Guan Kwang Tay, Habiba Alsafar
Advancement In Human Face Prediction Using Dna, Aamer Alshehhi, Aliya Almarzooqi, Khadija Alhammadi, Naoufel Werghi, Guan Kwang Tay, Habiba Alsafar
Research outputs 2022 to 2026
The rapid improvements in identifying the genetic factors contributing to facial morphology have enabled the early identification of craniofacial syndromes. Similarly, this technology can be vital in forensic cases involving human identification from biological traces or human remains, especially when reference samples are not available in the deoxyribose nucleic acid (DNA) database. This review summarizes the currently used methods for predicting human phenotypes such as age, ancestry, pigmentation, and facial features based on genetic variations. To identify the facial features affected by DNA, various two-dimensional (2D)- and three-dimensional (3D)-scanning techniques and analysis tools are reviewed. A comparison between the scanning …
A Facile Strategy For The Fabrication Of Cell-Laden Porous Alginate Hydrogels Based On Two-Phase Aqueous Emulsions, Wen Xue, Donghee Lee, Yunfan Kong, Mitchell A. Kuss, Ying Huang, Taesung Kim, Soonkyu Chung, Andrew T. Dudley, Seung-Hyun Ro, Bin Duan
A Facile Strategy For The Fabrication Of Cell-Laden Porous Alginate Hydrogels Based On Two-Phase Aqueous Emulsions, Wen Xue, Donghee Lee, Yunfan Kong, Mitchell A. Kuss, Ying Huang, Taesung Kim, Soonkyu Chung, Andrew T. Dudley, Seung-Hyun Ro, Bin Duan
Journal Articles: Genetics, Cell Biology & Anatomy
Porous alginate (Alg) hydrogels possess many advantages as cell carriers. However, current pore generation methods require either complex or harsh fabrication processes, toxic components, or extra purification steps, limiting the feasibility and affecting the cellular survival and function. In this study, a simple and cell-friendly approach to generate highly porous cell-laden Alg hydrogels based on two-phase aqueous emulsions is reported. The pre-gel solutions, which contain two immiscible aqueous phases of Alg and caseinate (Cas), are cross-linked by calcium ions. The porous structure of the hydrogel construct is formed by subsequently removing the Cas phase from the ion-cross-linked Alg hydrogel. Those …
Powerful, Scalable And Resource-Efficient Meta-Analysis Of Rare Variant Associations In Large Whole Genome Sequencing Studies, Xihao Li, Corbin Quick, Hufeng Zhou, Sheila M. Gaynor, John Blangero, Joanne E. Curran, Ravindranath Duggirala, Harald H. H. Goring, Michael Mahaney, Juan M. Peralta
Powerful, Scalable And Resource-Efficient Meta-Analysis Of Rare Variant Associations In Large Whole Genome Sequencing Studies, Xihao Li, Corbin Quick, Hufeng Zhou, Sheila M. Gaynor, John Blangero, Joanne E. Curran, Ravindranath Duggirala, Harald H. H. Goring, Michael Mahaney, Juan M. Peralta
School of Medicine Publications and Presentations
Meta-analysis of whole genome sequencing/whole exome sequencing (WGS/WES) studies provides an attractive solution to the problem of collecting large sample sizes for discovering rare variants associated with complex phenotypes. Existing rare variant meta-analysis approaches are not scalable to biobank-scale WGS data. Here we present MetaSTAAR, a powerful and resource-efficient rare variant meta-analysis framework for large-scale WGS/WES studies. MetaSTAAR accounts for relatedness and population structure, can analyze both quantitative and dichotomous traits and boosts the power of rare variant tests by incorporating multiple variant functional annotations. Through meta-analysis of four lipid traits in 30,138 ancestrally diverse samples from 14 studies of …
Disrupted Ca2+ Homeostasis And Immunodeficiency In Patients With Functional Ip3 Receptor Subtype 3 Defects, Julika Neumann, Erika Van Nieuwenhove, Lara E Terry, Frederik Staels, Taylor R Knebel, Kirsten Welkenhuyzen, Kourosh Ahmadzadeh, Mariah R Baker, Margaux Gerbaux, Mathijs Willemsen, John S Barber, Irina I Serysheva, Liesbeth De Waele, François Vermeulen, Susan Schlenner, Isabelle Meyts, David I Yule, Geert Bultynck, Rik Schrijvers, Stephanie Humblet-Baron, Adrian Liston
Disrupted Ca2+ Homeostasis And Immunodeficiency In Patients With Functional Ip3 Receptor Subtype 3 Defects, Julika Neumann, Erika Van Nieuwenhove, Lara E Terry, Frederik Staels, Taylor R Knebel, Kirsten Welkenhuyzen, Kourosh Ahmadzadeh, Mariah R Baker, Margaux Gerbaux, Mathijs Willemsen, John S Barber, Irina I Serysheva, Liesbeth De Waele, François Vermeulen, Susan Schlenner, Isabelle Meyts, David I Yule, Geert Bultynck, Rik Schrijvers, Stephanie Humblet-Baron, Adrian Liston
Journal Articles
Calcium signaling is essential for lymphocyte activation, with genetic disruptions of store-operated calcium (Ca2+) entry resulting in severe immunodeficiency. The inositol 1,4,5-trisphosphate receptor (IP3R), a homo- or heterotetramer of the IP3R1-3 isoforms, amplifies lymphocyte signaling by releasing Ca2+ from endoplasmic reticulum stores following antigen stimulation. Although knockout of all IP3R isoforms in mice causes immunodeficiency, the seeming redundancy of the isoforms is thought to explain the absence of variants in human immunodeficiency. In this study, we identified compound heterozygous variants of ITPR3 (a gene encoding IP3R subtype 3) in two unrelated Caucasian patients presenting with immunodeficiency. To determine whether ITPR3 …
Sustainable Development Goal For Quality Education (Sdg 4): A Study On Sdg 4 To Extract The Pattern Of Association Among The Indicators Of Sdg 4 Employing A Genetic Algorithm, Munish Saini, Eshan Sengupta, Madanjit Singh, Harnoor Singh, Jaswinder Singh
Sustainable Development Goal For Quality Education (Sdg 4): A Study On Sdg 4 To Extract The Pattern Of Association Among The Indicators Of Sdg 4 Employing A Genetic Algorithm, Munish Saini, Eshan Sengupta, Madanjit Singh, Harnoor Singh, Jaswinder Singh
Journal Articles
Sustainable Development Goals (SDG) are at the forefront of government initiatives across the world. The SDGs are primarily concerned with promoting sustainable growth via ensuring wellbeing, economic growth, environmental legislation, and academic advancement. One of the most prominent goals of the SDG is to provide learners with high-quality education (SDG 4). This paper aims to look at the perspectives of the Sustainable Development Goals improvised to provide quality education. We also analyze the existing state of multiple initiatives implemented by the Indian government in the pathway to achieving objectives of quality education (SDG 4). Additionally, a case study is considered …
Case Report: Sex-Specific Characteristics Of Epilepsy Phenotypes Associated With Xp22.31 Deletion: A Case Report And Review, Yi Wu, Dan Wu, Yulong Lan, Shaocong Lan, Duo Li, Zexin Zheng, Hongwu Wang, Lian Ma
Case Report: Sex-Specific Characteristics Of Epilepsy Phenotypes Associated With Xp22.31 Deletion: A Case Report And Review, Yi Wu, Dan Wu, Yulong Lan, Shaocong Lan, Duo Li, Zexin Zheng, Hongwu Wang, Lian Ma
Research outputs 2022 to 2026
Deletion in the Xp22.31 region is increasingly suggested to be involved in the etiology of epilepsy. Little is known regarding the genomic and clinical delineations of X-linked epilepsy in the Chinese population or the sex-stratified difference in epilepsy characteristics associated with deletions in the Xp22.31 region. In this study, we reported two siblings with a 1.69 Mb maternally inherited microdeletion at Xp22.31 involving the genes VCX3A, HDHD1, STS, VCX, VCX2, and PNPLA4 presenting with easily controlled focal epilepsy and language delay with mild ichthyosis in a Chinese family with a traceable 4-generation history of skin ichthyosis. Both brain magnetic resonance …
Molecular Subtyping And Survival Analysis Of Osteosarcoma Reveals Prognostic Biomarkers And Key Canonical Pathways, Siddesh Southekal, Sushil Kumar Shakyawar, Prachi Bajpai, Amr Elkholy, Upender Manne, Nitish Kumar Mishra, Chittibabu Guda
Molecular Subtyping And Survival Analysis Of Osteosarcoma Reveals Prognostic Biomarkers And Key Canonical Pathways, Siddesh Southekal, Sushil Kumar Shakyawar, Prachi Bajpai, Amr Elkholy, Upender Manne, Nitish Kumar Mishra, Chittibabu Guda
Journal Articles: Genetics, Cell Biology & Anatomy
Osteosarcoma (OS) is a common bone malignancy in children and adolescents. Although histological subtyping followed by improved OS treatment regimens have helped achieve favorable outcomes, a lack of understanding of the molecular subtypes remains a challenge to characterize its genetic heterogeneity and subsequently to identify diagnostic and prognostic biomarkers for developing effective treatments. In the present study, global analysis of DNA methylation, and mRNA and miRNA gene expression in OS patient samples were correlated with their clinical characteristics. The mucin family of genes, MUC6, MUC12, and MUC4, were found to be highly mutated in the OS patients. …
Rescue Of Auditory Function By A Single Administration Of Aav-Tmprss3 Gene Therapy In Aged Mice Of Human Recessive Deafness Dfnb8, Wan Du, Volkan Ergin, Corena Loeb, Mingqian Huang, Stewart Silver, Ariel Miura Armstrong, Zaohua Huang, Channabasavaiah B. Gurumurthy, Hinrich Staecker, Xuezhong Liu, Zheng-Yi Chen
Rescue Of Auditory Function By A Single Administration Of Aav-Tmprss3 Gene Therapy In Aged Mice Of Human Recessive Deafness Dfnb8, Wan Du, Volkan Ergin, Corena Loeb, Mingqian Huang, Stewart Silver, Ariel Miura Armstrong, Zaohua Huang, Channabasavaiah B. Gurumurthy, Hinrich Staecker, Xuezhong Liu, Zheng-Yi Chen
Journal Articles: Genetics, Cell Biology & Anatomy
Patients with mutations in the TMPRSS3 gene suffer from recessive deafness DFNB8/DFNB10. For these patients, cochlear implantation is the only treatment option. Poor cochlear implantation outcomes are seen in some patients. To develop biological treatment for TMPRSS3 patients, we generated a knockin mouse model with a frequent human DFNB8 TMPRSS3 mutation. The Tmprss3A306T/A306T homozygous mice display delayed onset progressive hearing loss similar to human DFNB8 patients. Using AAV2 as a vector to carry a human TMPRSS3 gene, AAV2-hTMPRSS3 injection in the adult knockin mouse inner ear results in TMPRSS3 expression in the hair cells and the spiral ganglion neurons. …
Conformational Rearrangements In The Sensory Rcsf/Omp Complex Mediate Signal Transduction Across The Bacterial Cell Envelope, Sarah R Lach, Santosh Kumar, Seonghoon Kim, Wonpil Im, Anna Konovalova
Conformational Rearrangements In The Sensory Rcsf/Omp Complex Mediate Signal Transduction Across The Bacterial Cell Envelope, Sarah R Lach, Santosh Kumar, Seonghoon Kim, Wonpil Im, Anna Konovalova
Journal Articles
Timely detection and repair of envelope damage are paramount for bacterial survival. The Regulator of Capsule Synthesis (Rcs) stress response can transduce the stress signals across the multilayered gram-negative cell envelope to regulate gene expression in the cytoplasm. Previous studies defined the overall pathway, which begins with the sensory lipoprotein RcsF interacting with several outer membrane proteins (OMPs). RcsF can also interact with the periplasmic domain of the negative regulator IgaA, derepressing the downstream RcsCDB phosphorelay. However, how the RcsF/IgaA interaction is regulated at the molecular level to activate the signaling in response to stress remains poorly understood. In this …
The Circadian E3 Ligase Fbxl21 Regulates Myoblast Differentiation And Sarcomere Architecture Via Myoz1 Ubiquitination And Nfat Signaling, Ji Ye Lim, Eunju Kim, Collin M Douglas, Marvin Wirianto, Chorong Han, Kaori Ono, Sun Young Kim, Justin H Ji, Celia K Tran, Zheng Chen, Karyn A Esser, Seung-Hee Yoo
The Circadian E3 Ligase Fbxl21 Regulates Myoblast Differentiation And Sarcomere Architecture Via Myoz1 Ubiquitination And Nfat Signaling, Ji Ye Lim, Eunju Kim, Collin M Douglas, Marvin Wirianto, Chorong Han, Kaori Ono, Sun Young Kim, Justin H Ji, Celia K Tran, Zheng Chen, Karyn A Esser, Seung-Hee Yoo
Journal Articles
Numerous molecular and physiological processes in the skeletal muscle undergo circadian time-dependent oscillations in accordance with daily activity/rest cycles. The circadian regulatory mechanisms underlying these cyclic processes, especially at the post-transcriptional level, are not well defined. Previously, we reported that the circadian E3 ligase FBXL21 mediates rhythmic degradation of the sarcomere protein TCAP in conjunction with GSK-3β, and Psttm mice harboring an Fbxl21 hypomorph allele show reduced muscle fiber diameter and impaired muscle function. To further elucidate the regulatory function of FBXL21 in skeletal muscle, we investigated another sarcomere protein, Myozenin1 (MYOZ1), that we identified as an FBXL21-binding protein from …
North American Genetic Counselors' Approach To Collecting And Using Ancestry In Clinical Practice, Alexandra Hubbel, Elizabeth Hogan, Anne Matthews, Aaron Goldenberg
North American Genetic Counselors' Approach To Collecting And Using Ancestry In Clinical Practice, Alexandra Hubbel, Elizabeth Hogan, Anne Matthews, Aaron Goldenberg
Student Scholarship
Current guidelines from the National Society of Genetic Counselors (NSGC) recommend that patients' ancestry be obtained when taking a family history. However, no study has explored how consistently genetic counselors obtain or utilize this information. The goals of this study included assessing how genetic counselors collect their patients' ancestry, what factors influence this decision, and how they view the utility of this information. Genetic counselors working in a direct patient care setting in the US or Canada were recruited to participate in an anonymous survey via an NSGC email blast. Most participants (n = 115) obtain information about their patients' …
Editorial: Epigenetics And Molecular Genetics Of Rare Tumors, Mauro Tognon, George A. Calin, Luis Del Valle
Editorial: Epigenetics And Molecular Genetics Of Rare Tumors, Mauro Tognon, George A. Calin, Luis Del Valle
School of Medicine Faculty Publications
No abstract provided.
Risk Factors For Thoracic Aortic Dissection, Zhen Zhou, Alana C Cecchi, Siddharth K Prakash, Dianna M Milewicz
Risk Factors For Thoracic Aortic Dissection, Zhen Zhou, Alana C Cecchi, Siddharth K Prakash, Dianna M Milewicz
Journal Articles
Thoracic aortic aneurysms involving the root and/or the ascending aorta enlarge over time until an acute tear in the intimal layer leads to a highly fatal condition, an acute aortic dissection (AAD). These Stanford type A AADs, in which the tear occurs above the sinotubular junction, leading to the formation of a false lumen in the aortic wall that may extend to the arch and thoracoabdominal aorta. Type B AADs originate in the descending thoracic aorta just distal to the left subclavian artery. Genetic variants and various environmental conditions that disrupt the aortic wall integrity have been identified that increase …