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Personalized epigenetics

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https://www.readbyqxmd.com/read/27918982/traffic-derived-particulate-matter-exposure-and-histone-h3-modification-a-repeated-measures-study
#1
Yinan Zheng, Marco Sanchez-Guerra, Zhou Zhang, Brian T Joyce, Jia Zhong, Jacob K Kresovich, Lei Liu, Wei Zhang, Tao Gao, Dou Chang, Citlalli Osorio-Yanez, Juan Jose Carmona, Sheng Wang, John P McCracken, Xiao Zhang, Yana Chervona, Anaite Díaz, Pier A Bertazzi, Petros Koutrakis, Choong-Min Kang, Joel Schwartz, Andrea A Baccarelli, Lifang Hou
BACKGROUND: Airborne particulate matter (PM) may induce epigenetic changes that potentially lead to chronic diseases. Histone modifications regulate gene expression by influencing chromatin structure that can change gene expression status. We evaluated whether traffic-derived PM exposure is associated with four types of environmentally inducible global histone H3 modifications. METHODS: The Beijing Truck Driver Air Pollution Study included 60 truck drivers and 60 office workers examined twice, 1-2 weeks apart, for ambient PM10 (both day-of and 14-day average exposures), personal PM2...
December 2, 2016: Environmental Research
https://www.readbyqxmd.com/read/27915479/trends-in-next-generation-sequencing-and-a-new-era-for-whole-genome-sequencing
#2
REVIEW
Sang Tae Park, Jayoung Kim
This article is a mini-review that provides a general overview for next-generation sequencing (NGS) and introduces one of the most popular NGS applications, whole genome sequencing (WGS), developed from the expansion of human genomics. NGS technology has brought massively high throughput sequencing data to bear on research questions, enabling a new era of genomic research. Development of bioinformatic software for NGS has provided more opportunities for researchers to use various applications in genomic fields...
November 2016: International Neurourology Journal
https://www.readbyqxmd.com/read/27914918/epigenetic-game-theory-how-to-compute-the-epigenetic-control-of-maternal-to-zygotic-transition
#3
REVIEW
Qian Wang, Kirk Gosik, Sujuan Xing, Libo Jiang, Lidan Sun, Vernon M Chinchilli, Rongling Wu
Epigenetic reprogramming is thought to play a critical role in maintaining the normal development of embryos. How the methylation state of paternal and maternal genomes regulates embryogenesis depends on the interaction and coordination of the gametes of two sexes. While there is abundant research in exploring the epigenetic interactions of sperms and oocytes, a knowledge gap exists in the mechanistic quantitation of these interactions and their impact on embryo development. This review aims at formulating a modeling framework to address this gap through the integration and synthesis of evolutionary game theory and the latest discoveries of the epigenetic control of embryo development by next-generation sequencing...
November 9, 2016: Physics of Life Reviews
https://www.readbyqxmd.com/read/27913501/mutations-in-aml-prognostic-and-therapeutic-implications
#4
Courtney D DiNardo, Jorge E Cortes
Acute myeloid leukemia (AML) is a heterogeneous hematologic malignancy characterized by the proliferation and aberrant differentiation of immature clonal myeloid cells. The prognosis of AML is variable, based on clinical features such as patient age, performance status, and comorbidities, as well as leukemia-specific genetic features including cytogenetics and molecular classification. The modern application of next-generation sequencing technology has uncovered marked heterogeneity and genomic complexity within AML, based on the presence or absence of cooperating mutations within functional categories such as epigenetic regulators, cell signaling and proliferation pathways, and master hematopoietic transcription factors...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27906527/behavioral-epigenetics
#5
David S Moore
Why do we grow up to have the traits we do? Most 20th century scientists answered this question by referring only to our genes and our environments. But recent discoveries in the emerging field of behavioral epigenetics have revealed factors at the interface between genes and environments that also play crucial roles in development. These factors affect how genes work; scientists now know that what matters as much as which genes you have (and what environments you encounter) is how your genes are affected by their contexts...
December 1, 2016: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/27903310/the-determinants-of-food-choice
#6
Gareth Leng, Roger A H Adan, Michele Belot, Jeffrey M Brunstrom, Kees de Graaf, Suzanne L Dickson, Todd Hare, Silvia Maier, John Menzies, Hubert Preissl, Lucia A Reisch, Peter J Rogers, Paul A M Smeets
Health nudge interventions to steer people into healthier lifestyles are increasingly applied by governments worldwide, and it is natural to look to such approaches to improve health by altering what people choose to eat. However, to produce policy recommendations that are likely to be effective, we need to be able to make valid predictions about the consequences of proposed interventions, and for this, we need a better understanding of the determinants of food choice. These determinants include dietary components (e...
December 1, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27895806/genome-wide-epigenomic-profiling-for-biomarker-discovery
#7
REVIEW
René A M Dirks, Hendrik G Stunnenberg, Hendrik Marks
A myriad of diseases is caused or characterized by alteration of epigenetic patterns, including changes in DNA methylation, post-translational histone modifications, or chromatin structure. These changes of the epigenome represent a highly interesting layer of information for disease stratification and for personalized medicine. Traditionally, epigenomic profiling required large amounts of cells, which are rarely available with clinical samples. Also, the cellular heterogeneity complicates analysis when profiling clinical samples for unbiased genome-wide biomarker discovery...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27891192/the-quest-for-an-effective-and-safe-personalized-cell-therapy-using-epigenetic-tools
#8
REVIEW
T A L Brevini, G Pennarossa, E F M Manzoni, C E Gandolfi, A Zenobi, F Gandolfi
In the presence of different environmental cues that are able to trigger specific responses, a given genotype has the ability to originate a variety of different phenotypes. This property is defined as plasticity and allows cell fate definition and tissue specialization. Fundamental epigenetic mechanisms drive these modifications in gene expression and include DNA methylation, histone modifications, chromatin remodeling, and microRNAs. Understanding these mechanisms can provide powerful tools to switch cell phenotype and implement cell therapy...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27882306/personalized-proteomics-the-future-of-precision-medicine
#9
Trevor T Duarte, Charles T Spencer
Medical diagnostics and treatment has advanced from a one size fits all science to treatment of the patient as a unique individual. Currently, this is limited solely to genetic analysis. However, epigenetic, transcriptional, proteomic, posttranslational modifications, metabolic, and environmental factors influence a patient's response to disease and treatment. As more analytical and diagnostic techniques are incorporated into medical practice, the personalized medicine initiative transitions to precision medicine giving a holistic view of the patient's condition...
2016: Proteomes
https://www.readbyqxmd.com/read/27880907/tet3-mediated-dna-demethylation-contributes-to-the-direct-conversion-of-fibroblast-to-functional-neuron
#10
Juan Zhang, Shuangquan Chen, Dongming Zhang, Zixiao Shi, Hong Li, Tongbiao Zhao, Baoyang Hu, Qi Zhou, Jianwei Jiao
The direct conversion of somatic cells to neurons by bypassing the multipotent cell state may be a powerful approach for personalized medicine. In addition to neuronal transcription factors and multiple small molecules, we find that epigenetic modification also contributes to the direct conversion of fibroblasts to neurons. Here, we show that Tet3, a DNA dioxygenase, can rapidly and efficiently convert fibroblasts directly into functional neurons. The induced neurons (iNs) express pan and mature neuronal markers such as Tuj1, Synapsin, and neuronal nuclei (NeuN)...
November 22, 2016: Cell Reports
https://www.readbyqxmd.com/read/27878451/beyond-genetics-what-causes-type-1-diabetes
#11
REVIEW
Zhen Wang, Zhiguo Xie, Qianjin Lu, Christopher Chang, Zhiguang Zhou
Type 1 diabetes (T1D) is an autoimmune disease resulting from T cell-mediated β cell destruction in the pancreas of genetically susceptible individuals. Extensive familial and population genetic studies uncovered the strong linkage and association between HLA gene variants and T1D. Non-HLA genes have also been associated with T1D, such as INS, CTLA4, and PTPN22. T1D is considered as one of the most heritable common diseases. However, evidence that monozygotic twins have incomplete concordance of disease susceptibility provides convincing proof that environmental factors also play important roles in the pathogenesis of the disease...
November 22, 2016: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/27860490/pharmacoepigenetics-an-element-of-personalized-therapy
#12
Aleksandra Majchrzak-Celińska, Wanda Baer-Dubowska
Epigenetics is a rapidly growing field describing heritable alterations in gene expression that do not involve DNA sequence variations. Advances in epigenetics and epigenomics have influenced pharmacology, leading to the development of a new specialty, pharmacoepigenetics, the study of the epigenetic basis for the individual variation in drug response. Areas covered: We present an overview of the major epigenetic mechanisms and their effects on the expression of drug-metabolizing enzymes and drug transporters, as well as thr epigenetic status of drug protein targets affecting therapy response...
November 18, 2016: Expert Opinion on Drug Metabolism & Toxicology
https://www.readbyqxmd.com/read/27857696/rethinking-schizophrenia-in-the-context-of-the-person-and-their-circumstances-seven-reasons
#13
Marino Pérez-Álvarez, José M García-Montes, Oscar Vallina-Fernández, Salvador Perona-Garcelán
We know a great deal about schizophrenia, but the current state of the art is one of uncertainty. Researchers are confused, and patients feel misunderstood. This situation has been identified as due largely to the fact that the dominant neurobiological perspective leaves out the person. The aim of the present article is to review and integrate a series of clinical, phenomenological, historical, cultural, epidemiological, developmental, epigenetic, and therapeutic phenomena in support of a suggestion that schizophrenia is above all a disorder of the person rather than of the brain...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27844020/epigenetics-in-diagnosis-of-colorectal-cancer
#14
REVIEW
Aga Syed Sameer, Saniya Nissar
Colorectal cancer (CRC) is a third most common epithelial carcinoma. CRC is known to develop from the early precancerous lesion to full blown malignancy via definite phases due to cumulative mutations and aberrant methylation of number of genes. The use of serum biomarkers that is non-invasive to discriminate cancer patients from healthy persons will prove to be an important tool to improve the early diagnosis of CRC. This will serve as the boon to the clinical management of the disease.
March 2016: Molecular Biology Research Communications
https://www.readbyqxmd.com/read/27792016/epigenetic-biomarkers-for-parkinson-s-disease-from-diagnostics-to-therapeutics
#15
Jennifer L Jakubowski, Viviane Labrie
Parkinson's disease (PD) is a prevalent neurodegenerative illness that is often diagnosed after significant pathology and neuronal cell loss has occurred. Biomarkers of PD are greatly needed for early diagnosis, as well as for the prediction of disease progression and treatment outcome. In this regard, the epigenome, which is partially dynamic, holds considerable promise for the development of molecular biomarkers for PD. Epigenetic marks are modified by both DNA sequence and environmental factors associated with PD, and such marks could serve as a unifying predictor of at-risk individuals...
October 25, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27784002/next-generation-sequencing-and-its-applications-in-hpv-associated-cancers
#16
Musaffe Tuna, Christopher I Amos
Approximately 18% of all human cancers have a viral etiology, and human papillomavirus (HPV) has been identified as one of the most prevalent viruses that plays causative role in nearly all cervical cancers and, in addition, in subset of head and neck, anal, penile and vulvar cancers. The recent introduction of next generation sequencing (NGS) and other 'omics' approaches have resulted in comprehensive knowledge on the pathogenesis of HPV-driven tumors. Specifically, these approaches have provided detailed information on genomic HPV integration sites, disrupted genes and pathways, and common and distinct genetic and epigenetic alterations in different human HPV-associated cancers...
October 23, 2016: Oncotarget
https://www.readbyqxmd.com/read/27768585/future-of-environmental-research-in-the-age-of-epigenomics-and-exposomics
#17
Nina Holland
Environmental research and public health in the 21st century face serious challenges such as increased air pollution and global warming, widespread use of potentially harmful chemicals including pesticides, plasticizers, and other endocrine disruptors, and radical changes in nutrition and lifestyle typical of modern societies. In particular, exposure to environmental and occupational toxicants may contribute to the occurrence of adverse birth outcomes, neurodevelopmental deficits, and increased risk of cancer and other multifactorial diseases such as diabetes and asthma...
October 21, 2016: Reviews on Environmental Health
https://www.readbyqxmd.com/read/27763570/vitamin-d-status-and-its-consequences-for-health-in-south-africa
#18
Mary Norval, Anna K Coussens, Robert J Wilkinson, Liza Bornman, Robyn M Lucas, Caradee Y Wright
In this review, reports were retrieved in which vitamin D status, as assessed by serum 25-hydroxyvitamin D [25(OH)D] levels, was measured in South African population groups with varied skin colours and ethnicities. Healthy children and adults were generally vitamin D-sufficient [25(OH)D level >50 nmol/L] but the majority of those aged above 65 years were deficient. A major role for exposure to solar ultraviolet radiation (UVR) in determining 25(OH)D levels was apparent, with the dietary contribution being minor...
October 18, 2016: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/27755245/novel-insights-in-pathophysiology-of-antiblastic-drugs-induced-cardiotoxicity-and-cardioprotection
#19
Martino Deidda, Rosalinda Madonna, Ruggiero Mango, Pasquale Pagliaro, Pier P Bassareo, Lucia Cugusi, Silvio Romano, Maria Penco, Francesco Romeo, Giuseppe Mercuro
Despite advances in supportive and protective therapy for myocardial function, heart failure caused by various clinical conditions, including cardiomyopathy due to antineoplastic therapy, remains a major cause of morbidity and mortality. Because of the limitations associated with current therapies, investigators have been searching for alternative treatments that can effectively repair the damaged heart and permanently restore its function. Damage to the heart can result from both traditional chemotherapeutic agents, such as anthracyclines, and new targeted therapies, such as trastuzumab...
May 2016: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/27747094/summary-of-emerging-personalized-medicine-in-neuroendocrine-tumors-are-we-on-track
#20
REVIEW
Michael S Lee, Bert H O'Neil
Neuroendocrine tumors (NETs) comprise a heterogeneous group of malignancies, with differences in prognosis and effective therapies. Traditionally, NETs have been characterized by tumor grade, site of primary tumor, functional status, and presence of underlying familial syndrome. However, increased feasibility and utilization of next-generation sequencing and other methodologies have revealed new genomic and epigenetic aberrations. In the last decade, treatment options available for metastatic well-differentiated gastroenteropancreatic (GEP) NETs have expanded, with approval of antiangiogenic and mTOR-directed targeted therapies, and our armamentarium of active therapies is likely to further increase...
October 2016: Journal of Gastrointestinal Oncology
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