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Dana dolinoy

Ting Wang, Erica C Pehrsson, Deepak Purushotham, Daofeng Li, Xiaoyu Zhuo, Bo Zhang, Heather A Lawson, Michael A Province, Christopher Krapp, Yemin Lan, Cristian Coarfa, Tiffany A Katz, Wan Yee Tang, Zhibin Wang, Shyam Biswal, Sanjay Rajagopalan, Justin A Colacino, Zing Tsung-Yeh Tsai, Maureen A Sartor, Kari Neier, Dana C Dolinoy, Jayant Pinto, Robert B Hamanaka, Gokhan M Mutlu, Heather B Patisaul, David L Aylor, Gregory E Crawford, Tim Wiltshire, Lisa H Chadwick, Christopher G Duncan, Amanda E Garton, Kimberly A McAllister, Marisa S Bartolomei, Cheryl L Walker, Frederick L Tyson
No abstract text is available yet for this article.
March 6, 2018: Nature Biotechnology
Zachary M Laubach, Wei Perng, Dana C Dolinoy, Christopher D Faulk, Kay E Holekamp, Thomas Getty
Developmental plasticity, a phenomenon of importance in both evolutionary biology and human studies of the developmental origins of health and disease (DOHaD), enables organisms to respond to their environment based on previous experience without changes to the underlying nucleotide sequence. Although such phenotypic responses should theoretically improve an organism's fitness and performance in its future environment, this is not always the case. Herein, we first discuss epigenetics as an adaptive mechanism of developmental plasticity and use signaling theory to provide an evolutionary context for DOHaD phenomena within a generation...
January 21, 2018: Biological Reviews of the Cambridge Philosophical Society
Carolyn McCabe, Olivia S Anderson, Luke Montrose, Kari Neier, Dana C Dolinoy
PURPOSE OF REVIEW: The genetic material of every organism exists within the context of regulatory networks that govern gene expression-collectively called the epigenome. Animal models and human birth cohort studies have revealed key developmental periods that are important for epigenetic programming and vulnerable to environmental insults. Thus, epigenetics represent a potential mechanism through which sexually dimorphic effects of early-life exposures such as endocrine-disrupting chemicals (EDCs) manifest...
December 2017: Current Environmental Health Reports
Prajakta C Shimpi, Vijay R More, Maneesha Paranjpe, Ajay C Donepudi, Jaclyn M Goodrich, Dana C Dolinoy, Beverly Rubin, Angela L Slitt
BACKGROUND: Exposure to chemicals during critical windows of development may re-program liver for increased risk of nonalcoholic fatty liver disease (NAFLD). Bisphenol A (BPA), a plastics component, has been described to impart adverse effects during gestational and lactational exposure. Our work has pointed to nuclear factor E2-related factor 2 (Nrf2) being a modulator of hepatic lipid accumulation in models of NAFLD. OBJECTIVES: To determine if chemical exposure can prime liver for steatosis via modulation of NRF2 and epigenetic mechanisms...
August 4, 2017: Environmental Health Perspectives
Carrie V Breton, Carmen J Marsit, Elaine Faustman, Kari Nadeau, Jaclyn M Goodrich, Dana C Dolinoy, Julie Herbstman, Nina Holland, Janine M LaSalle, Rebecca Schmidt, Paul Yousefi, Frederica Perera, Bonnie R Joubert, Joseph Wiemels, Michele Taylor, Ivana V Yang, Rui Chen, Kinjal M Hew, Deborah M Hussey Freeland, Rachel Miller, Susan K Murphy
BACKGROUND: Characterization of the epigenome is a primary interest for children's environmental health researchers studying the environmental influences on human populations, particularly those studying the role of pregnancy and early-life exposures on later-in-life health outcomes. OBJECTIVES: Our objective was to consider the state of the science in environmental epigenetics research and to focus on DNA methylation and the collective observations of many studies being conducted within the Children's Environmental Health and Disease Prevention Research Centers, as they relate to the Developmental Origins of Health and Disease (DOHaD) hypothesis...
April 2017: Environmental Health Perspectives
Joseph Kochmanski, Luke Montrose, Jaclyn M Goodrich, Dana C Dolinoy
Epigenetic drift and age-related methylation have both been used in the literature to describe changes in DNA methylation that occurs with aging. However, ambiguity remains regarding the exact definition of both of these terms, and neither of these fields of study explicitly considers the impact of environmental factors on the aging epigenome. Recent twin studies have demonstrated longitudinal, pair-specific discordance in DNA methylation patterns, suggesting an effect of the environment on age-related methylation and/or epigenetic drift...
April 1, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
Olivia S Anderson, Jung H Kim, Karen E Peterson, Brisa N Sanchez, Karilyn E Sant, Maureen A Sartor, Caren Weinhouse, Dana C Dolinoy
There is compelling evidence that epigenetic modifications link developmental environmental insults to adult disease susceptibility. Animal studies have associated perinatal bisphenol A (BPA) exposure to altered DNA methylation, but these studies are often limited to candidate gene and global non-loci-specific approaches. By using an epigenome-wide discovery platform, we elucidated epigenetic alterations in liver tissue from adult mice offspring (10 months) following perinatal BPA exposure at human physiologically relevant doses (50-ng, 50-μg, and 50-mg BPA/kg diet)...
January 1, 2017: Endocrinology
Elizabeth H Marchlewicz, Dana C Dolinoy, Lu Tang, Samantha Milewski, Tamara R Jones, Jaclyn M Goodrich, Tanu Soni, Steven E Domino, Peter X K Song, Charles F Burant, Vasantha Padmanabhan
Maternal diet and metabolism impact fetal development. Epigenetic reprogramming facilitates fetal adaptation to these in utero cues. To determine if maternal metabolite levels impact infant DNA methylation globally and at growth and development genes, we followed a clinical birth cohort of 40 mother-infant dyads. Targeted metabolomics and quantitative DNA methylation were analyzed in 1st trimester maternal plasma (M1) and delivery maternal plasma (M2) as well as infant umbilical cord blood plasma (CB). We found very long chain fatty acids, medium chain acylcarnitines, and histidine were: (1) stable in maternal plasma from pregnancy to delivery, (2) significantly correlated between M1, M2, and CB, and (3) in the top 10% of maternal metabolites correlating with infant DNA methylation, suggesting maternal metabolites associated with infant DNA methylation are tightly controlled...
October 7, 2016: Scientific Reports
Kyle J Burghardt, Jacyln M Goodrich, Dana C Dolinoy, Vicki L Ellingrod
OBJECTIVES: Atypical antipsychotics (AAPs) carry a significant risk of cardiometabolic side effects, including insulin resistance. It is thought that the insulin resistance resulting from the use of AAPs may be associated with changes in DNA methylation. We aimed to identify and validate a candidate gene associated with AAP-induced insulin resistance by using a multi-step approach that included an epigenome-wide association study (EWAS) and validation with site-specific methylation and metabolomics data...
August 2016: Bipolar Disorders
Joseph Kochmanski, Elizabeth H Marchlewicz, Matthew Savidge, Luke Montrose, Christopher Faulk, Dana C Dolinoy
Environmental factors, including exogenous exposures and nutritional status, can affect DNA methylation across the epigenome, but effects of exposures on age-dependent epigenetic drift remain unclear. Here, we tested the hypothesis that early-life exposure to bisphenol A (BPA) and/or variable diet results in altered epigenetic drift, as measured longitudinally via target loci methylation in paired mouse tail tissue (3 wks/10 mos old). Methylation was quantified at two repetitive elements (LINE-1, IAP), two imprinted genes (Igf2, H19), and one non-imprinted gene (Esr1) in isogenic mice developmentally exposed to Control, Control+BPA (50μg/kg diet), Mediterranean, Western, Mediterranean+BPA, or Western+BPA diets...
March 2017: Reproductive Toxicology
Jaclyn M Goodrich, Poovendhree Reddy, Rajen N Naidoo, Kareshma Asharam, Stuart Batterman, Dana C Dolinoy
The in utero environment has the potential to influence epigenetic programming and subsequently the health of offspring. Even though pregnant women living in urban Africa are exposed to multiple chemicals and infectious agents that may impact their developing children, the neonatal epigenome has not been studied in these regions. We assessed whether prenatal exposures to air pollution and maternal human immunodeficiency virus (HIV) are associated with changes to DNA methylation throughout the epigenome using a pilot sample from the Mother and Child Environmental (MACE) birth cohort, of which 36% of the mothers are HIV positive...
July 13, 2016: Environmental Science. Processes & Impacts
Christopher Faulk, Jung H Kim, Tamara R Jones, Richard C McEachin, Muna S Nahar, Dana C Dolinoy, Maureen A Sartor
Bisphenol A (BPA), a high production volume chemical widely used in consumer products, is an endocrine active compound associated with complex epigenetic responses in animal models and humans. Developmental BPA exposure in mice previously revealed widespread changes in the mouse liver methylome. Here, we undertake the first epigenome-wide analysis of the effect of BPA concentration on human fetal liver DNA methylation. Enzymatic enrichment of genomic DNA for high CG density and methylation followed by next-generation sequencing yielded data for positional methylation across the genome...
December 2015: Environmental Epigenetics
Caren Weinhouse, Maureen A Sartor, Christopher Faulk, Olivia S Anderson, Karilyn E Sant, Craig Harris, Dana C Dolinoy
Developmental exposure to the endocrine-active compound bisphenol A (BPA) has been linked to epigenotoxic and potential carcinogenic effects in rodent liver, prostate, and mammary glands. A dose-dependent increase in hepatic tumors in 10-month mice perinatally exposed to one of three doses of BPA (50 ng, 50 µg, or 50 mg BPA/kg chow) was previously reported. These tumors represent early-onset disease and lack classical sexual dimorphism in incidence. Here, adult epigenome-wide liver DNA methylation profiles to identify gene promoters associated with perinatal BPA exposure and disease in 10-month mice with and without liver tumors were investigated...
July 2016: Environmental and Molecular Mutagenesis
Christopher Faulk, Jung H Kim, Olivia S Anderson, Muna S Nahar, Tamara R Jones, Maureen A Sartor, Dana C Dolinoy
Developmental exposure to bisphenol A (BPA) has been shown to induce changes in DNA methylation in both mouse and human genic regions; however, the response in repetitive elements and transposons has not been explored. Here we present novel methodology to combine genomic DNA enrichment with RepeatMasker analysis on next-generation sequencing data to determine the effect of perinatal BPA exposure on repetitive DNA at the class, family, subfamily, and individual insertion level in both mouse and human samples...
July 2, 2016: Epigenetics: Official Journal of the DNA Methylation Society
Karilyn E Sant, Dana C Dolinoy, Joseph L Jilek, Maureen A Sartor, Craig Harris
Mono-2-ethylhexl phthalate (MEHP) is the primary metabolite of di-2-ethylhexyl phthalate (DEHP), a ubiquitous contaminant in plastics. This study sought to determine how structural defects caused by MEHP in mouse whole embryo culture were related to temporal and spatial patterns of redox state and gene expression. MEHP reduced morphology scores along with increased incidence of neural tube defects. Glutathione (GSH) and cysteine (Cys) concentrations fluctuated spatially and temporally in embryo (EMB) and visceral yolk sac (VYS) across the 24h culture...
August 2016: Reproductive Toxicology
Jianfeng Wu, Xiaoquan William Wen, Christopher Faulk, Kevin Boehnke, Huapeng Zhang, Dana C Dolinoy, Chuanwu Xi
Heavy metal pollution is a principle source of environmental contamination. Epidemiological and animal data suggest that early life lead (Pb) exposure results in critical effects on epigenetic gene regulation and child and adult weight trajectories. Using a mouse model of human-relevant exposure, we investigated the effects of perinatal Pb exposure on gut microbiota in adult mice, and the link between gut microbiota and bodyweight changes. Following Pb exposure during gestation and lactation via maternal drinking water, bodyweight in A(vy) strain wild-type non-agouti (a/a) offspring was tracked through adulthood...
June 2016: Toxicological Sciences: An Official Journal of the Society of Toxicology
Jamie E Moscovitz, Muna S Nahar, Stuart L Shalat, Angela L Slitt, Dana C Dolinoy, Lauren M Aleksunes
Because of its widespread use in the manufacturing of consumer products over several decades, human exposure to bisphenol A (BPA) has been pervasive. Fetuses are particularly sensitive to BPA exposure, with a number of negative developmental and reproductive outcomes observed in rodent perinatal models. Xenobiotic transporters are one mechanism to extrude conjugated and unconjugated BPA from the liver. In this study, the mRNA expression of xenobiotic transporters and relationships with total, conjugated, and free BPA levels were explored utilizing human fetal liver samples...
July 2016: Drug Metabolism and Disposition: the Biological Fate of Chemicals
Rajendra Prasad Parajuli, Jaclyn M Goodrich, Hwai-Nan Chou, Stephen E Gruninger, Dana C Dolinoy, Alfred Franzblau, Niladri Basu
BACKGROUND/AIMS: Mercury (Hg) is a potent toxicant of concern to the general public. Recent studies suggest that several genes that mediate Hg metabolism are polymorphic. We hypothesize that single nucleotide polymorphisms (SNPs) in such genes may underline inter-individual differences in exposure biomarker concentrations. METHODS: Dental professionals were recruited during the American Dental Association (ADA) 2012 Annual Meeting. Samples of hair, blood, and urine were collected for quantifying Hg levels and genotyping (88 SNPs in classes relevant to Hg toxicokinetics including glutathione metabolism, selenoproteins, metallothioneins, and xenobiotic transporters)...
August 2016: Environmental Research
Caren Weinhouse, Ingrid L Bergin, Craig Harris, Dana C Dolinoy
Bisphenol A (BPA) is an endocrine disrupting chemical (EDC) that has been implicated as a potential carcinogen and epigenotoxicant. We have previously reported dose-dependent incidence of hepatic tumors in 10-month-old isogenic mice perinatally exposed to BPA. Here, we evaluated DNA methylation at 3 candidate genes (Esr1, Il-6st, and Stat3) in liver tissue of BPA-exposed mice euthanized at 2 time points: post-natal day 22 (PND22; n = 147) or 10-months of age (n = 78, including n = 18 with hepatic tumors). Additionally, DNA methylation profiles were analyzed at human homologs of murine candidate genes in human fetal liver samples (n = 50) with known liver tissue BPA levels...
2015: Epigenetics: Official Journal of the DNA Methylation Society
Karilyn E Sant, Dana C Dolinoy, Joseph L Jilek, Brian J Shay, Craig Harris
Histiotrophic nutrition pathways (HNPs) are processes by which the organogenesis-stage conceptus obtains nutrients, amino acids, vitamins and cofactors required for protein biosynthesis and metabolic activities. Nutrients are captured from the maternal milieu as whole proteins and cargoes via receptor-mediated endocytosis in the visceral yolk sac (VYS), degraded by lysosomal proteolysis and delivered to the developing embryo (EMB). Several nutrients obtained by HNPs are required substrates for one-carbon (C1) metabolism and supply methyl groups required for epigenetic processes, including DNA and histone methylation...
January 2016: Journal of Nutritional Biochemistry
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