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Articles 1 - 30 of 403
Full-Text Articles in Genetics and Genomics
Improvements To Bayesian Gene Activity State Estimation From Genome-Wide Transcriptomics Data, Craig Disselkoen, Nathan Hekman, Brian Gilbert, Sydney Benson, Matthew Anderson, Matthew Dejongh, Aaron Best, Nathan L. Tintle
Improvements To Bayesian Gene Activity State Estimation From Genome-Wide Transcriptomics Data, Craig Disselkoen, Nathan Hekman, Brian Gilbert, Sydney Benson, Matthew Anderson, Matthew Dejongh, Aaron Best, Nathan L. Tintle
Faculty Work Comprehensive List
An important question in many biological applications, is to estimate or classify gene activity states (active or inactive) based on genome-wide transcriptomics data. Recently, we proposed a Bayesian method, titled MultiMM, which showed superior results compared to existing methods. In short, MultiMM performed better than existing methods on both simulated and real gene expression data, confirming well-known biological results and yielding better agreement with fluxomics data. Despite these promising results, MultiMM has numerous limitations. First, MultiMM leverages co-regulatory models to improve activity state estimates, but information about co-regulation is incorporated in a manner that assumes that networks are known with …
Multiple Functions Of Creb-Binding Protein During Postembryonic Development: Identification Of Target Genes, Amit Roy, Smitha George, Subba Reddy Palli
Multiple Functions Of Creb-Binding Protein During Postembryonic Development: Identification Of Target Genes, Amit Roy, Smitha George, Subba Reddy Palli
Entomology Faculty Publications
Background: Juvenile hormones (JH) and ecdysteroids control postembryonic development in insects. They serve as valuable targets for pest management. Hence, understanding the molecular mechanisms of their action is of crucial importance. CREB-binding protein (CBP) is a universal transcriptional co-regulator. It controls the expression of several genes including those from hormone signaling pathways through co-activation of many transcription factors. However, the role of CBP during postembryonic development in insects is not well understood. Therefore, we have studied the role of CBP in postembryonic development in Tribolium, a model coleopteran insect.
Results: CBP is ubiquitously expressed in the red flour beetle, …
Nuclear Spindles Pave The Way To Metastasis, Patrick J. Hensley, Natasha Kyprianou
Nuclear Spindles Pave The Way To Metastasis, Patrick J. Hensley, Natasha Kyprianou
Urology Faculty Publications
No abstract provided.
Serine-Dependent Sphingolipid Synthesis Is A Metabolic Liability Of Aneuploid Cells, Sunyoung Hwang, H. Tobias Gustafsson, Ciara O’Sullivan, Gianna Bisceglia, Xinhe Huang, Christian Klose, Andrej Schevchenko, Robert C. Dickson, Paola Cavaliere, Noah Dephoure, Eduardo M. Torres
Serine-Dependent Sphingolipid Synthesis Is A Metabolic Liability Of Aneuploid Cells, Sunyoung Hwang, H. Tobias Gustafsson, Ciara O’Sullivan, Gianna Bisceglia, Xinhe Huang, Christian Klose, Andrej Schevchenko, Robert C. Dickson, Paola Cavaliere, Noah Dephoure, Eduardo M. Torres
Molecular and Cellular Biochemistry Faculty Publications
Aneuploidy disrupts cellular homeostasis. However, the molecular mechanisms underlying the physiological responses and adaptation to aneuploidy are not well understood. Deciphering these mechanisms is important because aneuploidy is associated with diseases, including intellectual disability and cancer. Although tumors and mammalian aneuploid cells, including several cancer cell lines, show altered levels of sphingolipids, the role of sphingolipids in aneuploidy remains unknown. Here, we show that ceramides and long-chain bases, sphingolipid molecules that slow proliferation and promote survival, are increased by aneuploidy. Sphingolipid levels are tightly linked to serine synthesis, and inhibiting either serine or sphingolipid synthesis can specifically impair the fitness …
Comparison Between Listeria Sensu Stricto And Listeria Sensu Lato Strains Identifies Novel Determinants Involved In Infection, Jakob Schardt, Grant Jones, Stefanie Müller-Herbst, Kristina Schauer, Sarah E. F. D'Orazio, Thilo M. Fuchs
Comparison Between Listeria Sensu Stricto And Listeria Sensu Lato Strains Identifies Novel Determinants Involved In Infection, Jakob Schardt, Grant Jones, Stefanie Müller-Herbst, Kristina Schauer, Sarah E. F. D'Orazio, Thilo M. Fuchs
Microbiology, Immunology, and Molecular Genetics Faculty Publications
The human pathogen L. monocytogenes and the animal pathogen L. ivanovii, together with four other species isolated from symptom-free animals, form the "Listeria sensu stricto" clade. The members of the second clade, "Listeria sensu lato", are believed to be solely environmental bacteria without the ability to colonize mammalian hosts. To identify novel determinants that contribute to infection by L. monocytogenes, the causative agent of the foodborne disease listeriosis, we performed a genome comparison of the two clades and found 151 candidate genes that are conserved in the Listeria sensu stricto species. Two factors were …
Integrated Transcriptomic Analysis Of Trichosporon Asahii Uncovers The Core Genes And Pathways Of Fluconazole Resistance., Haitao Li, Congmin Wang, Yong Chen, Shaoqiang Zhang, Rongya Yang
Integrated Transcriptomic Analysis Of Trichosporon Asahii Uncovers The Core Genes And Pathways Of Fluconazole Resistance., Haitao Li, Congmin Wang, Yong Chen, Shaoqiang Zhang, Rongya Yang
Faculty Scholarship for the College of Science & Mathematics
Trichosporon asahii (T. asahii) has emerged as a dangerous pathogen that causes rare but life-threatening infections. Its resistance to certain antifungal agents makes it difficult to treat, especially for patients undergoing long-term antibiotic therapy. In this study, we performed a series of fluconazole (FLC) perturbation experiments for two T. asahii strains, a clinical isolate stain CBS 2479 (T2) and an environmental isolate strain CBS 8904 (T8), to uncover potential genes and pathways involved in FLC resistance. We achieved 10 transcriptomes of T2 and T8 that were based on dose and time series of FLC perturbations. Systematic comparisons of the transcriptomes …
Effects Of Carbon Dioxide On Turkey Poult Performance And Behavior, M G.L Candido, Y Xiong, R S. Gates, I F.F. Tinoco, K W. Koelkebeck
Effects Of Carbon Dioxide On Turkey Poult Performance And Behavior, M G.L Candido, Y Xiong, R S. Gates, I F.F. Tinoco, K W. Koelkebeck
Department of Animal Science: Faculty Publications
Appropriate ventilation of poultry facilities is critical for achieving optimum performance. Ventilation promotes good air exchange to remove harmful gases, excessive heat, moisture, and particulate matter. In a turkey brooder barn, carbon dioxide (CO2) may be present at higher levels during the winter due to reduced ventilation rates to maintain high temperatures. This higher CO2 may negatively affect turkey poult performance. Therefore, the objective of this study was to evaluate the effects of subjecting tom turkey poults (commercial Large White Hybrid Converters) to different constant levels of atmospheric CO2 on their growth performance and behavior. In …
Data From: Target Sequence Capture Of Nuclear-Encoded Genes For Phylogenetic Analysis In Ferns, Paul G. Wolf, Tanner A. Robison, Matthew G. Johnson, Michael A. Sundue, Weston L. Testo, Carl J. Rothfels
Data From: Target Sequence Capture Of Nuclear-Encoded Genes For Phylogenetic Analysis In Ferns, Paul G. Wolf, Tanner A. Robison, Matthew G. Johnson, Michael A. Sundue, Weston L. Testo, Carl J. Rothfels
Browse all Datasets
Premise of the study: Until recently, most phylogenetic studies of ferns were based on chloroplast genes. Evolutionary inferences based on these data can be incomplete because the characters are from a single linkage group and are uniparentally inherited. These limitations are particularly acute in studies of hybridization, which is prevalent in ferns; fern hybrids are common and ferns are able to hybridize across highly diverged lineages, up to 60 million years since divergence in one documented case. However, it not yet clear what effect such hybridization has on fern evolution, in part due to a paucity of available biparentally inherited …
Mechanistic Insights Into The Regulation Of Mitochondrial Fission By Cyclin C, Vidyaramanan Ganesan, Katrina F Cooper, Randy Strich
Mechanistic Insights Into The Regulation Of Mitochondrial Fission By Cyclin C, Vidyaramanan Ganesan, Katrina F Cooper, Randy Strich
Rowan-Virtua School of Osteopathic Medicine Faculty Scholarship
Cyclin C is a component of the mediator complex of RNA polymerase II that localizes to the nucleus under normal conditions. In response to stress, cyclin C translocates to the cytosol and mitochondria and mediates stress‐induced mitochondrial fission and apoptosis. The molecular mechanisms by which cyclin C induces mitochondrial fission are unknown. Using in vitro experimental approaches, we sought to investigate the mechanistic basis of cyclin C mediated mitochondrial fission.
Dna Barcoding Of Quercus Falcata, Quercus Palustris, Quercus Rubra, And Their Hybrids Using Rbcl, Matk, And Ycf1, Mckinzie Johnson, Tim Trott
Dna Barcoding Of Quercus Falcata, Quercus Palustris, Quercus Rubra, And Their Hybrids Using Rbcl, Matk, And Ycf1, Mckinzie Johnson, Tim Trott
Research in Biology
No abstract provided.
Revision Of The Species Of Lytopylus From Area De Conservación Guanacaste, Northwestern Costa Rica (Hymenoptera, Braconidae, Agathidinae), Ilgoo Kang, Eric G. Chapman, Daniel H. Janzen, Winnie Hallwachs, Tanya Dapkey, M. Alex Smith, Michael J. Sharkey
Revision Of The Species Of Lytopylus From Area De Conservación Guanacaste, Northwestern Costa Rica (Hymenoptera, Braconidae, Agathidinae), Ilgoo Kang, Eric G. Chapman, Daniel H. Janzen, Winnie Hallwachs, Tanya Dapkey, M. Alex Smith, Michael J. Sharkey
Entomology Faculty Publications
Thirty two new species of Lytopylus (Agathidinae) are described with image plates for each species: Lytopylus alejandromasisi sp. n., Lytopylus alfredomainieri sp. n., Lytopylusanamariamongeae sp. n., Lytopylus angelagonzalezae sp. n., Lytopylus cesarmorai sp. n., Lytopylus eddysanchezi sp. n., Lytopylus eliethcantillanoae sp. n., Lytopylus ericchapmani sp. n., Lytopylus gahyunae sp. n., Lytopylus gisukae sp. n., Lytopylus guillermopereirai sp. n., Lytopylusgustavoindunii sp. n., Lytopylus hartmanguidoi sp. n., Lytopylus hernanbravoi sp. n., Lytopylushokwoni sp. n., Lytopylus ivanniasandovalae sp. n., Lytopylus johanvalerioi sp. n., Lytopylusjosecortesi sp. n. …
Deep Experimental Profiling Of Microrna Diversity, Deployment, And Evolution Across The Drosophila Genus, Jaaven Mohammed, Alex S. Flynt, Alexandra M. Panzarino, Md Mosharrof Hossain Mondal, Matthew Decruz, Adam Siepel, Eric C. Lai
Deep Experimental Profiling Of Microrna Diversity, Deployment, And Evolution Across The Drosophila Genus, Jaaven Mohammed, Alex S. Flynt, Alexandra M. Panzarino, Md Mosharrof Hossain Mondal, Matthew Decruz, Adam Siepel, Eric C. Lai
Faculty Publications
To assess miRNA evolution across the Drosophila genus, we analyzed several billion small RNA reads across 12 fruit fly species. These data permit comprehensive curation of species- and clade-specific variation in miRNA identity, abundance, and processing. Among well-conserved miRNAs, we observed unexpected cases of clade-specific variation in 5′ end precision, occasional antisense loci, and putatively noncanonical loci. We also used strict criteria to identify a large set (649) of novel, evolutionarily restricted miRNAs. Within the bulk collection of species-restricted miRNAs, two notable subpopulations are splicing-derived mirtrons and testes-restricted, recently evolved, clustered (TRC) canonical miRNAs. We quantified miRNA birth and death …
Expression And Role Of Gonadotropin-Releasing Hormone 2 And Its Receptor In Mammals, Amy Desaulniers, Rebecca A. Cederberg, Clay A. Lents, Brett R. White
Expression And Role Of Gonadotropin-Releasing Hormone 2 And Its Receptor In Mammals, Amy Desaulniers, Rebecca A. Cederberg, Clay A. Lents, Brett R. White
Department of Animal Science: Faculty Publications
Gonadotropin-releasing hormone 1 (GnRH1) and its receptor (GnRHR1) drive mammalian reproduction via regulation of the gonadotropins. Yet, a second form of GnRH (GnRH2) and its receptor (GnRHR2) also exist in mammals. GnRH2 has been completely conserved throughout 500 million years of evolution, signifying high selection pressure and a critical biological role. However, the GnRH2 gene is absent (e.g., rat) or inactivated (e.g., cow and sheep) in some species but retained in others (e.g., human, horse, and pig). Likewise, many species (e.g., human, chimpanzee, cow, and sheep) retain the GnRHR2 gene but lack the appropriate coding sequence to produce a full-length …
Bayesian Prediction Intervals For Assessing P-Value Variability In Prospective Replication Studies, Olga A. Vsevolozhskaya, Gabriel Ruiz, Dmitri Zaykin
Bayesian Prediction Intervals For Assessing P-Value Variability In Prospective Replication Studies, Olga A. Vsevolozhskaya, Gabriel Ruiz, Dmitri Zaykin
Biostatistics Faculty Publications
Increased availability of data and accessibility of computational tools in recent years have created an unprecedented upsurge of scientific studies driven by statistical analysis. Limitations inherent to statistics impose constraints on the reliability of conclusions drawn from data, so misuse of statistical methods is a growing concern. Hypothesis and significance testing, and the accompanying P-values are being scrutinized as representing the most widely applied and abused practices. One line of critique is that P-values are inherently unfit to fulfill their ostensible role as measures of credibility for scientific hypotheses. It has also been suggested that while P-values …
Ran Translation At C9orf72-Associated Repeat Expansions Is Selectively Enhanced By The Integrated Stress Response, Katelyn M. Green, M. Rebecca Glineburg, Michael G. Kearse, Brittany N. Flores, Alexander E. Linsalata, Stephen J. Fedak, Aaron C. Goldstrohm, Sami J. Barmada, Peter K. Todd
Ran Translation At C9orf72-Associated Repeat Expansions Is Selectively Enhanced By The Integrated Stress Response, Katelyn M. Green, M. Rebecca Glineburg, Michael G. Kearse, Brittany N. Flores, Alexander E. Linsalata, Stephen J. Fedak, Aaron C. Goldstrohm, Sami J. Barmada, Peter K. Todd
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Repeat-associated non-AUG (RAN) translation allows for unconventional initiation at disease-causing repeat expansions. As RAN translation contributes to pathogenesis in multiple neurodegenerative disorders, determining its mechanistic underpinnings may inform therapeutic development. Here we analyze RAN translation at G4C2 repeat expansions that cause C9orf72-associated amyotrophic lateral sclerosis and frontotemporal dementia (C9RAN) and at CGG repeats that cause fragile X-associated tremor/ataxia syndrome. We find that C9RAN translation initiates through a cap- and eIF4A-dependent mechanism that utilizes a CUG start codon. C9RAN and CGG RAN are both selectively enhanced by integrated stress response (ISR) activation. ISR-enhanced RAN translation requires an …
Validation Of A New Rapid Hybridization Buffer For Fluorescence In Situ Hybridization With A Review On The Kinetics Of Dna Hybridization, Christine O'Connor
Validation Of A New Rapid Hybridization Buffer For Fluorescence In Situ Hybridization With A Review On The Kinetics Of Dna Hybridization, Christine O'Connor
Honors Scholar Theses
Abbott Molecular recently developed the rapid Vysis IntelliFISH Hybridization Buffer for use in fluorescence in situ hybridization (FISH) assays. The hybridization step in a standard FISH assay requires an overnight incubation, thus the turnaround time for a patient result is at least 24 hours. The IntelliFISH buffer was designed to reduce hybridization time of probes to target DNA to about two hours, allowing the entire assay to be performed in a single day. A review of methodologies and commercial products has highlighted the importance of hybridization kinetics to a successful FISH assay. The purpose of the research was to investigate …
In Silico Study Of Newly Synthesized Opioid Analgesics Bound To Three Opioid Receptors, Abdullah Allaoa, Mai Zahran
In Silico Study Of Newly Synthesized Opioid Analgesics Bound To Three Opioid Receptors, Abdullah Allaoa, Mai Zahran
Publications and Research
Opioids are the most widely used drugs for the treatment of moderate to severe, chronic pain. They achieve antinociception by activation of mu (MOR-1), kappa (KOR-1), and delta (DOR-1) opioid receptors. Natural products found in kratom plant, Mitragyna speciosa, represent diverse chemical groups with opioid activity, providing opportunities to better understand opioid pharmacology. Pharmacology studies show that Mitragynine pseudoindoxyl is a mu agonist/delta antagonist opioid with a signaling bias for G-protein-mediated signaling pathways in vitro and which produced potent antinociception in vivo. Respiratory depression assays along with other behavioral testing also showed that some of the major problems …
Validation Of Minimally-Invasive Sample Collection Methods For Measurement Of Telomere Length, Stephanie A. Stout, Jue Lin, Natalie Hernandez, Elysia Poggi Davis, Elizabeth Blackburn, Judith E. Carroll, Laura M. Glynn
Validation Of Minimally-Invasive Sample Collection Methods For Measurement Of Telomere Length, Stephanie A. Stout, Jue Lin, Natalie Hernandez, Elysia Poggi Davis, Elizabeth Blackburn, Judith E. Carroll, Laura M. Glynn
Psychology: Faculty Scholarship
Objective: The discovery of telomere length (TL) as a biomarker of cellular aging and correlate of age-related disease has generated a new field of research in the biology of healthy aging. Although the most common method of sample collection for TL is venous blood draw, less-invasive DNA collection methods are becoming more widely used. However, how TL relates across tissues derived from these sample collection methods is poorly understood. The current study is the first to characterize the associations in TL across three sample collection methods: venous whole blood, finger prick dried blood spot and saliva.
Methods: TL …
Small Rna-Dependent Gene Silencing In The Green Alga Chlamydomonas Reinhardtii: Functions And Mechanisms, Eun Jeong Kim
Small Rna-Dependent Gene Silencing In The Green Alga Chlamydomonas Reinhardtii: Functions And Mechanisms, Eun Jeong Kim
School of Biological Sciences: Dissertations, Theses, and Student Research
Small RNAs (sRNAs), ~20-30 nucleotides in length, are non-coding RNAs that play essential roles in the regulation of gene expression in eukaryotes. They lead to inactivation of cognate sequences at the post-transcriptional level via a variety of mechanisms involved in translation inhibition and/or RNA degradation.
In the Chlorophyta Chlamydomonas reinhardtii, however, the molecular machinery responsible for sRNA-mediated translational repression remains unclear. To address the mechanisms of translation inhibition by sRNA, we have isolated an RNAi defective mutant (Mut26), which contains a deletion of the gene encoding the homolog of CCR4 in Chlamydomonas. We investigated the expression of …
Human Dispersal From Siberia To Beringia: Assessing A Beringian Standstill In Light Of The Archaeological Evidence, Kelly E. Graf, Ian Buvit
Human Dispersal From Siberia To Beringia: Assessing A Beringian Standstill In Light Of The Archaeological Evidence, Kelly E. Graf, Ian Buvit
All Faculty Scholarship for the College of the Sciences
With genetic studies showing unquestionable Asian origins of the first Americans, the Siberian and Beringian archaeological records are absolutely critical for understanding the initial dispersal of modern humans in the Western Hemisphere. The genetics-based Beringian Standstill Model posits a three-stage dispersal process and necessitates several expectations of the archaeological record of northeastern Asia. Here we present an overview of the Siberian and Beringian Upper Paleolithic records and discuss them in the context of a Beringian Standstill. We report that not every expectation of the model is met with archaeological data at hand.
Human Metapneumovirus Induces Formation Of Inclusion Bodies For Efficient Genome Replication And Transcription, Nicolás P. Cifuentes-Muñoz, Jean Branttie, Kerri Beth Slaughter, Rebecca Ellis Dutch
Human Metapneumovirus Induces Formation Of Inclusion Bodies For Efficient Genome Replication And Transcription, Nicolás P. Cifuentes-Muñoz, Jean Branttie, Kerri Beth Slaughter, Rebecca Ellis Dutch
Molecular and Cellular Biochemistry Faculty Publications
Human metapneumovirus (HMPV) causes significant upper and lower respiratory disease in all age groups worldwide. The virus possesses a negative-sense single-stranded RNA genome of approximately 13.3 kb encapsidated by multiple copies of the nucleoprotein (N), giving rise to helical nucleocapsids. In addition, copies of the phosphoprotein (P) and the large RNA polymerase (L) decorate the viral nucleocapsids. After viral attachment, endocytosis, and fusion mediated by the viral glycoproteins, HMPV nucleocapsids are released into the cell cytoplasm. To visualize the subsequent steps of genome transcription and replication, a fluorescence in situ hybridization (FISH) protocol was established to detect different viral RNA …
As Technologies For Nucleotide Therapeutics Mature, Products Emerge, Jennifer M. Beierlein, Laura M. Mcnamee, Fred D. Ledley
As Technologies For Nucleotide Therapeutics Mature, Products Emerge, Jennifer M. Beierlein, Laura M. Mcnamee, Fred D. Ledley
Natural & Applied Sciences Faculty Publications
The long path from initial research on oligonucleotide therapies to approval of antisense products is not unfamiliar. This lag resembles those encountered with monoclonal antibodies, gene therapies, and many biological targets and is consistent with studies of innovation showing that technology maturation is a critical determinant of product success. We previously described an analytical model for the maturation of biomedical research, demonstrating that the efficiency of targeted and biological development is connected to metrics of technology growth. The present work applies this model to characterize the advance of oligonucleotide therapeutics. We show that recent oligonucleotide product approvals incorporate technologies and …
Common Tdp1 Polymorphisms In Relation To Survival Among Small Cell Lung Cancer Patients: A Multicenter Study From The International Lung Cancer Consortium, Pawadee Lohavanichbutr, Lori C. Sakoda, Christopher I. Amos, Susanne M. Arnold, David C. Christiani, Michael P. A. Davies, John K. Field, Eric B. Haura, Rayjean J Hung, Takashi Kohno, Maria Teresa Landi, Geoffrey Liu, Yi Liu, Michael W. Marcus, Grainne M. O'Kane, Matthew B. Schabath, Kouya Shiraishi, Stacey A. Slone, Adonina Tardón, Ping Yang, Kazushi Yoshida, Ruyang Zhang, Xuchen Zong, Gary E. Goodman, Noel S. Weiss, Chu Chen
Common Tdp1 Polymorphisms In Relation To Survival Among Small Cell Lung Cancer Patients: A Multicenter Study From The International Lung Cancer Consortium, Pawadee Lohavanichbutr, Lori C. Sakoda, Christopher I. Amos, Susanne M. Arnold, David C. Christiani, Michael P. A. Davies, John K. Field, Eric B. Haura, Rayjean J Hung, Takashi Kohno, Maria Teresa Landi, Geoffrey Liu, Yi Liu, Michael W. Marcus, Grainne M. O'Kane, Matthew B. Schabath, Kouya Shiraishi, Stacey A. Slone, Adonina Tardón, Ping Yang, Kazushi Yoshida, Ruyang Zhang, Xuchen Zong, Gary E. Goodman, Noel S. Weiss, Chu Chen
Internal Medicine Faculty Publications
Background—DNA topoisomerase inhibitors are commonly used for treating small-cell lung cancer (SCLC). Tyrosyl-DNA phosphodiesterase (TDP1) repairs DNA damage caused by this class of drugs and may therefore influence treatment outcome. In this study, we investigated whether common TDP1 single-nucleotide polymorphisms (SNP) are associated with overall survival among SCLC patients.
Methods—Two TDP1 SNPs (rs942190 and rs2401863) were analyzed in 890 patients from 10 studies in the International Lung Cancer Consortium (ILCCO). The Kaplan–Meier method and Cox regression analyses were used to evaluate genotype associations with overall mortality at 36 months postdiagnosis, adjusting for age, sex, race, and tumor stage. …
24-Month Hiv-Free Survival Among Infants Born To Hiv-Positive Women Enrolled In Option B+ Program In Kigali, Rwanda: The Kabeho Study, Michelle Gill, Heather J. Hoffman, Dieudonne Ndatimana, Placidie Mugwaneza, Laura Guay, +Several Additional Authors
24-Month Hiv-Free Survival Among Infants Born To Hiv-Positive Women Enrolled In Option B+ Program In Kigali, Rwanda: The Kabeho Study, Michelle Gill, Heather J. Hoffman, Dieudonne Ndatimana, Placidie Mugwaneza, Laura Guay, +Several Additional Authors
Genomics and Precision Medicine Faculty Publications
Lifelong antiretroviral therapy (ART) provision to all pregnant HIV-positive women (“Option B+”) has been recommended by the World Health Organization since 2013, but there remain limited data on the effects of Option B+ on long-term HIV-free survival in breastfeeding HIV-exposed infants. The Kigali Antiretroviral and Breastfeeding Assessment for the Elimination of HIV (Kabeho) study enrolled HIV-positive women from the third trimester of pregnancy to 2 weeks postpartum in 14 heath facilities implementing Option B+ in Kigali, Rwanda. Mother–child pairs in the longitudinal observational cohort were followed until 24 months postpartum, with HIV diagnostic testing at 6 weeks, and 9, 18 …
Plasma Fibroblast Growth Factor-21 Levels In Patients With Inborn Errors Of Metabolism, Brian Kirmse, Juan Cabrera-Luque, Omar Ayyub, Kristina Cusmano-Ozog, Kimberly A. Chapman, Marshall L. Summar
Plasma Fibroblast Growth Factor-21 Levels In Patients With Inborn Errors Of Metabolism, Brian Kirmse, Juan Cabrera-Luque, Omar Ayyub, Kristina Cusmano-Ozog, Kimberly A. Chapman, Marshall L. Summar
Pediatrics Faculty Publications
Fibroblast growth factor-21 (FGF21) levels are elevated in patients with primary mitochondrial disorders but have not been studied in patients with inborn errors of metabolism (IEM) known to have secondary mitochondrial dysfunction. We measured plasma FGF21 by ELISA in patients with and without IEM. FGF21 levels were higher in patients with IEM compared to without IEM (370 pg/dL vs. 0–65 pg/dL). Further study of FGF21 as a biomarker in IEM is warranted.
Heritable Sperm Chromatin Epigenetics: A Break To Remember, Ralph G. Meyer, Chelsea C. Ketchum, Mirella L. Meyer-Ficca
Heritable Sperm Chromatin Epigenetics: A Break To Remember, Ralph G. Meyer, Chelsea C. Ketchum, Mirella L. Meyer-Ficca
UAES Publications
Sperm chromatin not only has a unique structure to condense and protect the paternal DNA in transit, but also provides epigenetic information that supports embryonic development. Most of the unique sperm nuclear architecture is formed during the sweeping postmeiotic chromatin remodeling events in spermiogenesis, where the majority of nucleosomes are removed and replaced by protamines. The remaining histones and other chromatin proteins are located in structurally and transcriptionally relevant positions in the genome and carry diverse post-translational modifications relevant to the control of embryonic gene expression. How such postmeiotic chromatin-based programming of sperm epigenetic information proceeds, and how susceptible the …
Oystershell Scale Impacts And Mitigation Options On The Kaibab And Coconino Nf’S, Amanda M. Grady
Oystershell Scale Impacts And Mitigation Options On The Kaibab And Coconino Nf’S, Amanda M. Grady
Aspen Bibliography
This report documents a site visit to evaluate aspen stands experiencing oystershell scale damage on the Kaibab and Coconino National Forest’s. The site visit was requested by Kaibab NF, foresters including; Josh Giles, Jessi Outzs, Michael Sedgeman, Woody Rokala and Coconino Silviculturist, Mark Nabel. On November 19, 2016, Amanda Grady accompanied the individuals listed above, to evaluate stand conditions within three aspen exclosures. Two were located on the Williams Ranger District, Kaibab NF in the vicinity of Spring Valley. The third exclosure was located on the Flagstaff RD, Coconino NF and accessed from HWY 89-A via the Pump House Wash …
Genetic Signatures For Helicobacter Pylori Strains Of West African Origin, Kennady K. Bullock, Carrie L. Shaffer, Andrew W. Brooks, Ousman Secka, Mark H. Forsyth, Mark S. Mcclain, Timothy L. Cover
Genetic Signatures For Helicobacter Pylori Strains Of West African Origin, Kennady K. Bullock, Carrie L. Shaffer, Andrew W. Brooks, Ousman Secka, Mark H. Forsyth, Mark S. Mcclain, Timothy L. Cover
Veterinary Science Faculty Publications
Helicobacter pylori is a genetically diverse bacterial species that colonizes the stomach in about half of the human population. Most persons colonized by H. pylori remain asymptomatic, but the presence of this organism is a risk factor for gastric cancer. Multiple populations and subpopulations of H. pylori with distinct geographic distributions are recognized. Genetic differences among these populations might be a factor underlying geographic variation in gastric cancer incidence. Relatively little is known about the genomic features of African H. pylori strains compared to other populations of strains. In this study, we first analyzed the genomes of …
Linkage, Whole Genome Sequence, And Biological Data Implicate Variants In Rab10 In Alzheimer's Disease Resilience., Perry G Ridge, Celeste M Karch, Simon Hsu, Ivan Arano, Craig C Teerlink, Mark T W Ebbert, Josue D Gonzalez Murcia, James M Farnham, Anna R Damato, Mariet Allen, Xue Wang, Oscar Harari, Victoria M Fernandez, Rita Guerreiro, Jose Bras, John Hardy, Ronald Munger, Maria Norton, Celeste Sassi, Andrew Singleton, Steven G Younkin, Dennis W Dickson, Todd E Golde, Nathan D Price, Nilüfer Ertekin-Taner, Carlos Cruchaga, Alison M Goate, Christopher Corcoran, Joann Tschanz, Lisa A Cannon-Albright, John S K Kauwe
Linkage, Whole Genome Sequence, And Biological Data Implicate Variants In Rab10 In Alzheimer's Disease Resilience., Perry G Ridge, Celeste M Karch, Simon Hsu, Ivan Arano, Craig C Teerlink, Mark T W Ebbert, Josue D Gonzalez Murcia, James M Farnham, Anna R Damato, Mariet Allen, Xue Wang, Oscar Harari, Victoria M Fernandez, Rita Guerreiro, Jose Bras, John Hardy, Ronald Munger, Maria Norton, Celeste Sassi, Andrew Singleton, Steven G Younkin, Dennis W Dickson, Todd E Golde, Nathan D Price, Nilüfer Ertekin-Taner, Carlos Cruchaga, Alison M Goate, Christopher Corcoran, Joann Tschanz, Lisa A Cannon-Albright, John S K Kauwe
Articles, Abstracts, and Reports
BACKGROUND: While age and the APOE ε4 allele are major risk factors for Alzheimer's disease (AD), a small percentage of individuals with these risk factors exhibit AD resilience by living well beyond 75 years of age without any clinical symptoms of cognitive decline.
METHODS: We used over 200 "AD resilient" individuals and an innovative, pedigree-based approach to identify genetic variants that segregate with AD resilience. First, we performed linkage analyses in pedigrees with resilient individuals and a statistical excess of AD deaths. Second, we used whole genome sequences to identify candidate SNPs in significant linkage regions. Third, we replicated SNPs …
Transcriptome-Wide Identification Of The Rna-Binding Landscape Of The Chromatin-Associated Protein Parp1 Reveals Functions In Rna Biogenesis, Manana Melikishvili, Julia H. Chariker, Eric C. Rouchka, Yvonne N. Fondufe-Mittendorf
Transcriptome-Wide Identification Of The Rna-Binding Landscape Of The Chromatin-Associated Protein Parp1 Reveals Functions In Rna Biogenesis, Manana Melikishvili, Julia H. Chariker, Eric C. Rouchka, Yvonne N. Fondufe-Mittendorf
Molecular and Cellular Biochemistry Faculty Publications
Recent studies implicate Poly (ADP-ribose) polymerase 1 (PARP1) in alternative splicing regulation, and PARP1 may be an RNA-binding protein. However, detailed knowledge of RNA targets and the RNA-binding region for PARP1 are unknown. Here we report the first global study of PARP1–RNA interactions using PAR–CLIP in HeLa cells. We identified a largely overlapping set of 22 142 PARP1–RNA-binding peaks mapping to mRNAs, with 20 484 sites located in intronic regions. PARP1 preferentially bound RNA containing GC-rich sequences. Using a Bayesian model, we determined positional effects of PARP1 on regulated exon-skipping events: PARP1 binding upstream and downstream of the skipped exons …