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Correcting Glucose-6-Phosphate Dehydrogenase Deficiency With A Small-Molecule Activator, Sunhee Hwang, Karen Mruk, Simin Rahighi, Andrew G. Raub, Che-Hong Chen, Lisa E. Dorn, Naoki Horikoshi, Soichi Wakatsuki, James K. Chen, Daria Mochly-Rosen 2018 Stanford University

Correcting Glucose-6-Phosphate Dehydrogenase Deficiency With A Small-Molecule Activator, Sunhee Hwang, Karen Mruk, Simin Rahighi, Andrew G. Raub, Che-Hong Chen, Lisa E. Dorn, Naoki Horikoshi, Soichi Wakatsuki, James K. Chen, Daria Mochly-Rosen

Pharmacy Faculty Articles and Research

Glucose-6-phosphate dehydrogenase (G6PD) deficiency, one of the most common human genetic enzymopathies, is caused by over 160 different point mutations and contributes to the severity of many acute and chronic diseases associated with oxidative stress, including hemolytic anemia and bilirubin-induced neurological damage particularly in newborns. As no medications are available to treat G6PD deficiency, here we seek to identify a small molecule that corrects it. Crystallographic study and mutagenesis analysis identify the structural and functional defect of one common mutant (Canton, R459L). Using high-throughput screening, we subsequently identify AG1, a small molecule that increases the activity of the wild-type, the ...


Genetic Modification Of Inherited Retinopathy In Mice, Yang Kong 2018 The University of Maine

Genetic Modification Of Inherited Retinopathy In Mice, Yang Kong

Electronic Theses and Dissertations

The retina, as a critical component of the sensory system, consists of multiple cell types, of which, photoreceptors play a key role in receiving, integrating and transmitting light signals. The biofunctions of photoreceptors rely on their proper growth and development, which is predominantly governed by a cluster of molecules that comprise the transcriptional regulation for photoreceptor development. Any disruption of these molecules potentially incurs retinal pathologies.

It is known that deficiencies of nuclear receptor subfamily 2 group E member 3 (NR2E3) or neural retina leucine-zipper (NRL), two molecules in regulating photoreceptor cell development, cause photoreceptor dysplasia. In a sensitized chemical ...


Systematic Complex Haploinsufficiency-Based Genetic Analysis Of Candida Albicans Transcription Factors: Tools And Applications To Virulence-Associated Phenotypes, Virginia E. Glazier, Thomas Murante, Kristy Koselny, Daniel Murante, Marisol Esqueda, Gina A. Wall, Melanie Wellington, Chiung-Yu Hung, Anuj Kumar, Damian J. Krysan 2018 University of Iowa

Systematic Complex Haploinsufficiency-Based Genetic Analysis Of Candida Albicans Transcription Factors: Tools And Applications To Virulence-Associated Phenotypes, Virginia E. Glazier, Thomas Murante, Kristy Koselny, Daniel Murante, Marisol Esqueda, Gina A. Wall, Melanie Wellington, Chiung-Yu Hung, Anuj Kumar, Damian J. Krysan

Stead Family Department of Pediatrics Publications

Genetic interaction analysis is a powerful approach to the study of complex biological processes that are dependent on multiple genes. Because of the largely diploid nature of the human fungal pathogen


Identification Of P38 Mapk As A Novel Therapeutic Target For Friedreich's Ataxia., M Grazia Cotticelli, Shujuan Xia, Avinash Kaur, Daniel Lin, Yongping Wang, Eric Ruff, John W Tobias, Robert B Wilson 2018 Marian University - Indianapolis

Identification Of P38 Mapk As A Novel Therapeutic Target For Friedreich's Ataxia., M Grazia Cotticelli, Shujuan Xia, Avinash Kaur, Daniel Lin, Yongping Wang, Eric Ruff, John W Tobias, Robert B Wilson

Student Publications and Research

Friedreich ataxia (FRDA) is an autosomal recessive neuro- and cardio-degenerative disorder caused by decreased expression of frataxin, a protein that localizes to mitochondria and is critical for iron-sulfur-cluster (ISC) assembly. There are no proven effective treatments for FRDA. We previously screened a random shRNA library and identified a synthetic shRNA (gFA11) that reverses the growth defect of FRDA cells in culture. We now report that gFA11 decreases cytokine secretion in primary FRDA fibroblasts and reverts other changes associated with cell senescence. The gene-expression profile induced by gFA11 is remarkably similar to the gene-expression profile induced by the p38 MAPK inhibitor ...


Genome-Wide Association Study Of Offspring Birth Weight In 86 577 Women Identifies Five Novel Loci And Highlights Maternal Genetic Effects That Are Independent Of Fetal Genetics, Robin N. Beaumont, Nicole M. Warrington, Alana Cavadino, Jessica Tyrrell, Michael Nodzenski, Momoko Horikoshi, Frank Geller, Ronny Myhre, Rebecca C. Richmond, Lavinia Paternoster, Jonathan P. Bradfield, Eskil Kreiner-Møller, Ville Huikari, Sarah Metrustry, Kathryn L. Lunetta, Jodie N. Painter, Jouke-Jan Hottenga, Catherine Allard, Sheila J. Barton, Ana Espinosa, Julie A. Marsh, Catherine Potter, Ge Zhang, Wei Ang, Diane J. Berry, Luigi Bouchard, Shikta Das, Hakon Hakonarson, Jani Heikkinen, Øyvind Helgeland, Berthold Hocher, Albert Hofman, Hazel M. Inskip, Samuel E. Jones, Manolis Kogevinas, Penelope A. Lind, Letizia Marullo, Sarah E. Medland, Anna Murray, Jeffrey C. Murray, Pål R. Njølstad, Ellen A. Nohr, Christoph Reichetzeder, Susan M. Ring, Katherine S. Ruth, Loreto Santa-Marina, Denise M. Scholtens, Sylvain Sebert, Verena Sengpiel, Marcus A. Tuke, Marc Vaudel, Michael N. Weedon, Gonneke Willemsen, Andrew R. Wood, Hanieh Yaghootkar, Louis J. Muglia, Meike Bartels, Caroline L. Relton, Craig E. Pennell, Leda Chatzi, Xavier Estivill, John W. Holloway, Dorret I. Boomsma, Grant W. Montgomery, Joanne M. Murabito, Tim D. Spector, Christine Power, Marjo-Ritta Järvelin, Hans Bisgaard, Struan F A Grant, Thorkild I A Sørensen, Vincent W. Jaddoe, Bo Jacobsson, Mads Melbye, Mark I. McCarthy, Andrew T. Hattersley, M Geoffery Hayes, Timothy M. Frayling, Marie-France Hivert, Janine F. Felix, Elina Hyppönen, William L. Lowe, David M. Evans, Debbie A. Lawlor, Bjarke Feenstra, Rachel M. Freathy 2018 University of Iowa

Genome-Wide Association Study Of Offspring Birth Weight In 86 577 Women Identifies Five Novel Loci And Highlights Maternal Genetic Effects That Are Independent Of Fetal Genetics, Robin N. Beaumont, Nicole M. Warrington, Alana Cavadino, Jessica Tyrrell, Michael Nodzenski, Momoko Horikoshi, Frank Geller, Ronny Myhre, Rebecca C. Richmond, Lavinia Paternoster, Jonathan P. Bradfield, Eskil Kreiner-Møller, Ville Huikari, Sarah Metrustry, Kathryn L. Lunetta, Jodie N. Painter, Jouke-Jan Hottenga, Catherine Allard, Sheila J. Barton, Ana Espinosa, Julie A. Marsh, Catherine Potter, Ge Zhang, Wei Ang, Diane J. Berry, Luigi Bouchard, Shikta Das, Hakon Hakonarson, Jani Heikkinen, Øyvind Helgeland, Berthold Hocher, Albert Hofman, Hazel M. Inskip, Samuel E. Jones, Manolis Kogevinas, Penelope A. Lind, Letizia Marullo, Sarah E. Medland, Anna Murray, Jeffrey C. Murray, Pål R. Njølstad, Ellen A. Nohr, Christoph Reichetzeder, Susan M. Ring, Katherine S. Ruth, Loreto Santa-Marina, Denise M. Scholtens, Sylvain Sebert, Verena Sengpiel, Marcus A. Tuke, Marc Vaudel, Michael N. Weedon, Gonneke Willemsen, Andrew R. Wood, Hanieh Yaghootkar, Louis J. Muglia, Meike Bartels, Caroline L. Relton, Craig E. Pennell, Leda Chatzi, Xavier Estivill, John W. Holloway, Dorret I. Boomsma, Grant W. Montgomery, Joanne M. Murabito, Tim D. Spector, Christine Power, Marjo-Ritta Järvelin, Hans Bisgaard, Struan F A Grant, Thorkild I A Sørensen, Vincent W. Jaddoe, Bo Jacobsson, Mads Melbye, Mark I. Mccarthy, Andrew T. Hattersley, M Geoffery Hayes, Timothy M. Frayling, Marie-France Hivert, Janine F. Felix, Elina Hyppönen, William L. Lowe, David M. Evans, Debbie A. Lawlor, Bjarke Feenstra, Rachel M. Freathy

Stead Family Department of Pediatrics Publications

Genome-wide association studies of birth weight have focused on fetal genetics, whereas relatively little is known about the role of maternal genetic variation. We aimed to identify maternal genetic variants associated with birth weight that could highlight potentially relevant maternal determinants of fetal growth. We meta-analysed data on up to 8.7 million SNPs in up to 86 577 women of European descent from the Early Growth Genetics (EGG) Consortium and the UK Biobank. We used structural equation modelling (SEM) and analyses of mother-child pairs to quantify the separate maternal and fetal genetic effects. Maternal SNPs at 10 loci (MTNR1B ...


Novel Combination Bmp7 And Hgf Gene Therapy Instigates Selective Myofibroblast Apoptosis And Reduces Corneal Haze In Vivo, Suneel Gupta, Michael K. Fink, Arkasubhra Ghosh, Ratnakar Tripathi, Prashant R. Sinha, Ajay Sharma, Nathan P. Hesemann, Shyam S. Chaurasia, Elizabeth A. Giuliano, Rajiv R. Mohan 2018 Harry S. Truman Memorial Veterans’ Hospital

Novel Combination Bmp7 And Hgf Gene Therapy Instigates Selective Myofibroblast Apoptosis And Reduces Corneal Haze In Vivo, Suneel Gupta, Michael K. Fink, Arkasubhra Ghosh, Ratnakar Tripathi, Prashant R. Sinha, Ajay Sharma, Nathan P. Hesemann, Shyam S. Chaurasia, Elizabeth A. Giuliano, Rajiv R. Mohan

Pharmacy Faculty Articles and Research

PURPOSE. We tested the potential of bone morphogenic protein 7 (BMP7) and hepatocyte growth factor (HGF) combination gene therapy to treat preformed corneal fibrosis using established rabbit in vivo and human in vitro models.

METHODS. Eighteen New Zealand White rabbits were used. Corneal fibrosis was produced by alkali injury. Twenty-four hours after scar formation, cornea received topically either balanced salt solution (BSS; n ¼ 6), polyethylenimine-conjugated gold nanoparticle (PEI2-GNP)-naked plasmid (n ¼ 6) or PEI2-GNP plasmids expressing BMP7 and HGF genes (n ¼ 6). Donor human corneas were used to obtain primary human corneal fibroblasts and myofibroblasts for mechanistic ...


Streamlined Ex Vivo And In Vivo Genome Editing In Mouse Embryos Using Recombinant Adeno-Associated Viruses, Yeonsoo Yoon, Dan Wang, Phillip W. L. Tai, Joy Riley, Guangping Gao, Jaime A. Rivera-Perez 2018 University of Massachusetts Medical School

Streamlined Ex Vivo And In Vivo Genome Editing In Mouse Embryos Using Recombinant Adeno-Associated Viruses, Yeonsoo Yoon, Dan Wang, Phillip W. L. Tai, Joy Riley, Guangping Gao, Jaime A. Rivera-Perez

Pediatric Publications and Presentations

Recent advances using CRISPR-Cas9 approaches have dramatically enhanced the ease for genetic manipulation in rodents. Notwithstanding, the methods to deliver nucleic acids into pre-implantation embryos have hardly changed since the original description of mouse transgenesis more than 30 years ago. Here we report a novel strategy to generate genetically modified mice by transduction of CRISPR-Cas9 components into pre-implantation mouse embryos via recombinant adeno-associated viruses (rAAVs). Using this approach, we efficiently generated a variety of targeted mutations in explanted embryos, including indel events produced by non-homologous end joining and tailored mutations using homology-directed repair. We also achieved gene modification in vivo ...


A Plasma Telomeric Cell-Free Dna Level In Unaffected Women With Brca1 Or/And Brca2 Mutations: A Pilot Study, Shatovisha Dey, Natascia Marino, Kanokwan Bishop, Paige N. Dahlgren, Aditi Shendre, Anna Maria Storniolo, Chunyan He, Hiromi Tanaka 2018 Indiana University

A Plasma Telomeric Cell-Free Dna Level In Unaffected Women With Brca1 Or/And Brca2 Mutations: A Pilot Study, Shatovisha Dey, Natascia Marino, Kanokwan Bishop, Paige N. Dahlgren, Aditi Shendre, Anna Maria Storniolo, Chunyan He, Hiromi Tanaka

Internal Medicine Faculty Publications

Plasma cell-free DNA (cfDNA) is a small DNA fragment circulating in the bloodstream originating from both non-tumor- and tumor-derived cells. A previous study showed that a plasma telomeric cfDNA level decreases in sporadic breast cancer patients compared to controls. Tumor suppressor gene products including BRCA1 and BRCA2 (BRCA1&2) play an important role in telomere maintenance. In this study, we hypothesized that the plasma telomeric cfDNA level is associated with the mutation status of BRCA1&2 genes. To test this hypothesis, we performed plasma telomeric cfDNA quantitative PCR (qPCR)-based assays to compare 28 women carriers of the BRCA1&2 ...


The Effect Of Dna Methylation On Tp73 Expression In Tumorgenesis, Nujuma A. Moussa 2018 Virginia Commonwealth University

The Effect Of Dna Methylation On Tp73 Expression In Tumorgenesis, Nujuma A. Moussa

Undergraduate Research Posters

Abstract: The Effect of DNA Methylation on TP73 Expression in Tumorgenesis

Nujuma Moussa, Zhixing Yao, Zaki A. Sherif

Department of Biochemistry & Molecular Biology, Howard University College of Medicine

TP73 is a member of the TP53 family of proteins that acts as a transcription factor to help regulate cellular distress. This tumor protein may play a dual role as a tumor suppressor and tumor promoter. The TP73 gene is mapped to chromosome 1p36, a frequently deleted region in neuroblastoma and other types of tumors. While mutations in the TP53 gene are commonly known to cause noxious cancers, 30% of cancers result ...


An Overview Of Technical Considerations When Using Quantitative Real-Time Pcr Analysis Of Gene Expression In Human Exercise Research, Jujiao Kuang, Xu Yan, Amanda Genders, Cesare Granata, David J. Bishop 2018 Edith Cowan University

An Overview Of Technical Considerations When Using Quantitative Real-Time Pcr Analysis Of Gene Expression In Human Exercise Research, Jujiao Kuang, Xu Yan, Amanda Genders, Cesare Granata, David J. Bishop

ECU Publications Post 2013

Gene expression analysis by quantitative PCR in skeletal muscle is routine in exercise studies. The reproducibility and reliability of the data fundamentally depend on how the experiments are performed and interpreted. Despite the popularity of the assay, there is a considerable variation in experimental protocols and data analyses from different laboratories, and there is a lack of consistency of proper quality control steps throughout the assay. In this study, we present a number of experiments on various steps of quantitative PCR workflow, and demonstrate how to perform a quantitative PCR experiment with human skeletal muscle samples in an exercise study ...


Analysis Of Diagnostic, Preventive, And Disease-Modifying Therapeutic Measures Of Alzheimer’S Disease, Ghazal Habib Havoutis 2017 Nova Southeastern University

Analysis Of Diagnostic, Preventive, And Disease-Modifying Therapeutic Measures Of Alzheimer’S Disease, Ghazal Habib Havoutis

HCNSO Student Capstones

Alzheimer’s disease (AD) is the most common late-onset neurodegenerative disorder and cause of dementia, characterized by the formation of neurofibrillary tangles and senile plaque deposits. The heterogeneous nature of the disease (both genetically and environmentally) makes it difficult to prevent or cure. Without prevention, the prevalence of AD is expected to triple by 2050. However, because the diagnosis of AD is usually preceded by years of cognitive impairment, early detection may aid in reducing prevalence. Thus, there is a need for validated diagnostic measures for early and improved diagnosis and prevention. In this review, current and ongoing classifiers of ...


Amelioration Of Prenatal Alcohol Effects By Environmental Enrichment In A Mouse Model Of Fasd, Aniruddho Chokroborty-Hoque 2017 The University of Western Ontario

Amelioration Of Prenatal Alcohol Effects By Environmental Enrichment In A Mouse Model Of Fasd, Aniruddho Chokroborty-Hoque

Electronic Thesis and Dissertation Repository

Maternal alcohol consumption during pregnancy results in a spectrum of behavioural and cognitive deficits collectively known as Fetal Alcohol Spectrum Disorders (FASD). Currently, little is know about if and how the external environment may modulate these deficits. I have used C57BL/6 mice to study this interaction between prenatal alcohol exposure and the postnatal environment. Alcohol exposure during synaptogenesis produces high levels of anxiety-like traits and decreased memory performance. Alcohol-exposed mice (and matched unexposed controls) were put in 'environmentally-enriched' conditions of voluntary exercise, physical activities and cognitive stimulation to ascertain the effects of a positive postnatal environment. The results show ...


Dnmt3a Haploinsufficiency Provokes Hematologic Malignancy Of B-Lymphoid, T-Lymphoid, And Myeloid Lineage In Mice, Garland Michael Upchurch 2017 University of Nebraska Medical Center

Dnmt3a Haploinsufficiency Provokes Hematologic Malignancy Of B-Lymphoid, T-Lymphoid, And Myeloid Lineage In Mice, Garland Michael Upchurch

Theses & Dissertations

DNA methyltransferase 3A (DNMT3A) is a master epigenetic regulator of benign and malignant hematopoiesis. To dissect the biological consequences of homozygous and heterozygous Dnmt3a inactivation in malignant hematopoiesis, we generated Dnmt3a homozygous null (Dnmt3aΔ/Δ) and Dnmt3a heterozygous (Dnmt3a+/) mice and compared the presentations of hematologic malignancies between cohorts. Bi-allelic inactivation of Dnmt3a results in the presentation of mature lymphoid neoplasms resembling chronic lymphocytic leukemia (CLL; B220+CD19+CD5+; 88% penetrance (37/42)) and CD8+ peripheral T-cell lymphoma (PTCL; TCRβ+CD3+CD8+CD4; 40% penetrance (17/42)). In contrast, mono-allelic inactivation of Dnmt3a results in the presentation of CLL ...


Germ-Line Gene Editing And Congressional Reaction In Context: Learning From Almost 50 Years Of Congressional Reactions To Biomedical Breakthroughs, Russell A. Spivak, J.D., I. Glenn Cohen, J.D., Eli Y. Adashi, M.D., M.S. 2017 Harvard Law School

Germ-Line Gene Editing And Congressional Reaction In Context: Learning From Almost 50 Years Of Congressional Reactions To Biomedical Breakthroughs, Russell A. Spivak, J.D., I. Glenn Cohen, J.D., Eli Y. Adashi, M.D., M.S.

Journal of Law and Health

On December 18, 2015, President Obama signed into law a policy rider forestalling the therapeutic modification of the human germ line. The rider, motivated by the science’s potential unethical ends, is only the most recent instance in which the legislature cut short the ongoing national conversation on the acceptability of a developing science. This essay offers historical perspective on what bills were proposed and passed surrounding four other then-developing scientific breakthroughs—Recombinant DNA, in vitro fertilization, Cloning, Stem Cells—to better analyze how Congress is, and should, regulate this exciting and promising science.


Pas Signaling Mechanisms In Aer And Aer2, Darysbel Garcia 2017 Loma Linda University

Pas Signaling Mechanisms In Aer And Aer2, Darysbel Garcia

Loma Linda University Electronic Theses, Dissertations & Projects

PAS domains are widespread signal sensors that share a conserved three-dimensional αβ fold that consists of a central β-sheet flanked by several α- helices. The aerotaxis receptor Aer from Escherichia coli and the Aer2 chemoreceptor from Pseudomonas aeruginosa both contain PAS domains. Aer senses oxygen (O2) indirectly via an FAD cofactor bound to its PAS domain, while Aer2 directly binds O2 to its PAS b-type heme cofactor. The Aer and Aer2 PAS domains both interact with a signal transduction domain known as a HAMP domain. The PAS-HAMP arrangement differs between Aer and Aer2, with Aer- PAS residing adjacent to its ...


Investigating The Role Of Dispatched In Hedgehog Ligand Transport And Delivery, William Bodeen 2017 University of Tennessee Health Science Center

Investigating The Role Of Dispatched In Hedgehog Ligand Transport And Delivery, William Bodeen

Theses and Dissertations (ETD)

During the development of all metazoans, the Hedgehog (Hh) signaling pathway provides instructional cues influencing a variety of cellular processes. The pathway ligand, Hh, is dually lipidated by cholesterol and palmitate, which effectively anchors the molecule to the lipid bilayer of the signal producing cell. To complicate the Hh pathway induction process, the Hh ligand is often produced at a significant distance from the cells it influences. Only one known conserved molecule, Dispatched (Disp), can alleviate the membrane tethering imparted by Hh lipidation. Underscoring the importance of Disp protein during development, knockout animals succumb to lethality at E9.5, an ...


El Acceso Y Uso De Las Pruebas Genéticas Para La Detección Precoz De Enfermedades Congénitas En Mujeres Embarazadas En La Ciudad Autónoma De Buenos Aires En El Año 2017 \ The Access And Use Of Genetic Tests For Early Detection Of Congenital Diseases In Pregnant Women In The Autonomous City Of Buenos Aires In The Year 2017, Anna Anna Bauer 2017 SIT Study Abroad

El Acceso Y Uso De Las Pruebas Genéticas Para La Detección Precoz De Enfermedades Congénitas En Mujeres Embarazadas En La Ciudad Autónoma De Buenos Aires En El Año 2017 \ The Access And Use Of Genetic Tests For Early Detection Of Congenital Diseases In Pregnant Women In The Autonomous City Of Buenos Aires In The Year 2017, Anna Anna Bauer

Independent Study Project (ISP) Collection

Las pruebas genéticas son una herramienta útil para la prevención y el diagnóstico de defectos congénitos en las mujeres embarazadas. Esta investigación explora el acceso y uso de estas pruebas para mujeres que residen en la Ciudad Autónoma de Buenos Aires en el año 2017. Se trata de un tema amerita una investigación porque la tecnología para hacer estudios genéticos todavía es algo novedosa. Además, a través de las pruebas genéticas es posible detectar si el feto tiene un alto riesgo para desarrollar un defecto congénito, el cual es una de las causas más importantes de la mortalidad prenatal y ...


P33. Design And Evaluation Of An Escherichia Coli Biomarker For Indication Of Ph, Kevin X. Zhou, Luana Langlois, Ashmita Singh, John Prince 2017 Western University

P33. Design And Evaluation Of An Escherichia Coli Biomarker For Indication Of Ph, Kevin X. Zhou, Luana Langlois, Ashmita Singh, John Prince

Western Research Forum

Measuring pH is one of the most commonly used techniques in both the laboratory as well as the field due to its importance in a multitude of biochemical processes. Traditional methods of measuring pH may be highly developed in accuracy and precision but often involve disruption of the environment. Biological markers offer an alternative that allows for long-term pH monitoring. This innovative approach allows for vast applications such as in the manufacturing, food processing and research industries. Under moderate acidic conditions, the asr (acid shock RNA) gene is highly inducible and has been demonstrated to be crucial for growth at ...


Sleep Disturbances And Depression: The Role Of Genes And Trauma, Mackenzie J. Lind 2017 Virginia Commonwealth University

Sleep Disturbances And Depression: The Role Of Genes And Trauma, Mackenzie J. Lind

Theses and Dissertations

Sleep disturbances and insomnia are prevalent, with around 33% of adults indicating that they experience at least one main symptom of insomnia, and bidirectional relationships exist with common psychopathology, particularly major depressive disorder (MDD). However, genetic and environmental (e.g., traumatic event exposure) contributions to the etiology of these phenotypes are not yet well understood. A genetically informative sample of approximately 12,000 Han Chinese women aged 30-60 (50% with recurrent MDD) was used to address several gaps within the sleep literature. Sleep disturbances were assessed in all individuals using a general item addressing sleeplessness (GS). A sleep within depression ...


Employing The Enzyme Cofactor Function Of Ascorbic Acid To Affect Oncogenic Pathways In Human Melanoma: Modulating Hypoxia Inducible Factor-1Α And Dna Demethylation To Reduce Malignant Potential, Adam Patrick Fischer 2017 Marshall University

Employing The Enzyme Cofactor Function Of Ascorbic Acid To Affect Oncogenic Pathways In Human Melanoma: Modulating Hypoxia Inducible Factor-1Α And Dna Demethylation To Reduce Malignant Potential, Adam Patrick Fischer

Theses, Dissertations and Capstones

Dioxygenase enzymes such as the HIF hydroxylases (PHD1-3, FIH) and the Ten-eleven translocation (TET1-3) enzymes regulate the activity of the hypoxia inducible factor-1a (HIF1a) transcription factor and the DNA methylation status of cells, respectively. Aberrant accumulation and activation of HIF-1a can allow malignant cells to acquire attributes that promote progression, chemotherapy resistance, and survival, while aberrant hypermethylation of gene promoters can silence the expression of tumor suppressor genes essential to preventing tumorigenesis. Inadequate levels of intracellular ascorbic acid (AA), a necessary cofactor for optimal dioxygenase enzyme function, could potentiate these tumorigenic conditions. In fact, plasma levels of ...


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