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Steve Horvath

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https://www.readbyqxmd.com/read/28259012/dna-methylome-analysis-identifies-accelerated-epigenetic-ageing-associated-with-postmenopausal-breast-cancer-susceptibility
#1
Srikant Ambatipudi, Steve Horvath, Flavie Perrier, Cyrille Cuenin, Hector Hernandez-Vargas, Florence Le Calvez-Kelm, Geoffroy Durand, Graham Byrnes, Pietro Ferrari, Liacine Bouaoun, Athena Sklias, Véronique Chajes, Kim Overvad, Gianluca Severi, Laura Baglietto, Françoise Clavel-Chapelon, Rudolf Kaaks, Myrto Barrdahl, Heiner Boeing, Antonia Trichopoulou, Pagona Lagiou, Androniki Naska, Giovanna Masala, Claudia Agnoli, Silvia Polidoro, Rosario Tumino, Salvatore Panico, Martijn Dollé, Petra H M Peeters, N Charlotte Onland-Moret, Torkjel M Sandanger, Therese H Nøst, Elisabete Weiderpass, J Ramón Quirós, Antonio Agudo, Miguel Rodriguez-Barranco, José María Huerta Castaño, Aurelio Barricarte, Ander Matheu Fernández, Ruth C Travis, Paolo Vineis, David C Muller, Elio Riboli, Marc Gunter, Isabelle Romieu, Zdenko Herceg
AIM OF THE STUDY: A vast majority of human malignancies are associated with ageing, and age is a strong predictor of cancer risk. Recently, DNA methylation-based marker of ageing, known as 'epigenetic clock', has been linked with cancer risk factors. This study aimed to evaluate whether the epigenetic clock is associated with breast cancer risk susceptibility and to identify potential epigenetics-based biomarkers for risk stratification. METHODS: Here, we profiled DNA methylation changes in a nested case-control study embedded in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort (n = 960) using the Illumina HumanMethylation 450K BeadChip arrays and used the Horvath age estimation method to calculate epigenetic age for these samples...
February 28, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28237978/longitudinal-study-of-surrogate-aging-measures-during-human-immunodeficiency-virus-seroconversion
#2
Janice M Leung, Nick Fishbane, Meaghan Jones, Alexander Morin, Stella Xu, Joseph Cy Liu, Julie MacIsaac, M J Milloy, Kanna Hayashi, Julio Montaner, Steve Horvath, Michael Kobor, Don D Sin, P Richard Harrigan, Sf Paul Man
Persons living with human immunodeficiency virus (HIV) harbor an increased risk of age-related conditions. We measured changes in telomere length and DNA methylation in the peripheral blood of 31 intravenous drug users, who were followed longitudinally with blood samples pre-HIV (T1), immediately post-HIV (T2; 1.9±1 year from T1), and at a later follow-up time (T3; 2.2±1 year from T2). Absolute telomere length measurements were performed using polymerase chain reaction methods. Methylation profiles were obtained using the Illumina Human Methylation450 platform...
February 23, 2017: Aging
https://www.readbyqxmd.com/read/28231077/association-of-genetic-variation-in-the-tachykinin-receptor-3-locus-with-hot-flashes-and-night-sweats-in-the-women-s-health-initiative-study
#3
Carolyn J Crandall, JoAnn E Manson, Chancellor Hohensee, Steve Horvath, Jean Wactawski-Wende, Erin S LeBlanc, Mara Z Vitolins, Rami Nassir, Janet S Sinsheimer
OBJECTIVE: Vasomotor symptoms (VMS, ie, hot flashes or night sweats) are reported by many, but not all, women. The extent to which VMS are genetically determined is unknown. We evaluated the relationship of genetic variation and VMS. METHODS: In this observational study, we accessed data from three genome-wide association studies (GWAS) (SNP Health Association Resource cohort [SHARe], WHI Memory Study cohort [WHIMS+], and Genome-Wide Association Studies of Treatment Response in Randomized Clinical Trials [GARNET] studies, total n = 17,695) of European American, African American, and Hispanic American postmenopausal women aged 50 to 79 years at baseline in the Women's Health Initiative Study...
March 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28198702/epigenetic-clock-analysis-of-diet-exercise-education-and-lifestyle-factors
#4
Austin Quach, Morgan E Levine, Toshiko Tanaka, Ake T Lu, Brian H Chen, Luigi Ferrucci, Beate Ritz, Stefania Bandinelli, Marian L Neuhouser, Jeannette M Beasley, Linda Snetselaar, Robert B Wallace, Philip S Tsao, Devin Absher, Themistocles L Assimes, James D Stewart, Yun Li, Lifang Hou, Andrea A Baccarelli, Eric A Whitsel, Steve Horvath
Behavioral and lifestyle factors have been shown to relate to a number of health-related outcomes, yet there is a need for studies that examine their relationship to molecular aging rates. Toward this end, we use recent epigenetic biomarkers of age that have previously been shown to predict all-cause mortality, chronic conditions, and age-related functional decline. We analyze cross-sectional data from 4,173 postmenopausal female participants from the Women's Health Initiative, as well as 402 male and female participants from the Italian cohort study, Invecchiare nel Chianti...
February 14, 2017: Aging
https://www.readbyqxmd.com/read/28198392/coffee-consumption-is-associated-with-dna-methylation-levels-of-human-blood
#5
Yu-Hsuan Chuang, Austin Quach, Devin Absher, Themistocles Assimes, Steve Horvath, Beate Ritz
Beneficial health effects have been attributed to coffee consumption, but it is not yet known whether epigenetics may have a role in this process. Here we associate epigenome-wide DNA methylation levels to habitual coffee consumption from two studies with blood (2100 and 215 participants), and one with saliva samples (256 participants). Adjusting for age, gender, and blood cell composition, one CpG (cg21566642 near ALPPL2) surpassed genome-wide significance (P=3.7 × 10(-10)) and from among 10 additional CpGs significant at P≤5...
February 15, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28174738/microgeographic-proteomic-networks-of-the-human-colonic-mucosa-and-their-association-with-inflammatory-bowel-disease
#6
Xiaoxiao Li, James LeBlanc, David Elashoff, Ian McHardy, Maomeng Tong, Bennett Roth, Andrew Ippoliti, Gildardo Barron, Dermot McGovern, Keely McDonald, Rodney Newberry, Thomas Graeber, Steve Horvath, Lee Goodglick, Jonathan Braun
BACKGROUND & AIMS: Interactions between mucosal cell types, environmental stressors, and intestinal microbiota contribute to pathogenesis in inflammatory bowel disease (IBD). Here, we applied metaproteomics of the mucosal-luminal interface to study the disease-related biology of the human colonic mucosa. METHODS: We recruited a discovery cohort of 51 IBD and non-IBD subjects endoscopically sampled by mucosal lavage at 6 colonic regions, and a validation cohort of 38 no-IBD subjects...
September 2016: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28089957/the-epigenetic-clock-and-physical-development-during-childhood-and-adolescence-longitudinal-analysis-from-a-uk-birth-cohort
#7
Andrew J Simpkin, Laura D Howe, Kate Tilling, Tom R Gaunt, Oliver Lyttleton, Wendy L McArdle, Susan M Ring, Steve Horvath, George Davey Smith, Caroline L Relton
BACKGROUND: Statistical models that use an individual's DNA methylation levels to estimate their age (known as epigenetic clocks) have recently been developed, with 96% correlation found between epigenetic and chronological age. We postulate that differences between estimated and actual age [age acceleration (AA)] can be used as a measure of developmental age in early life. METHODS: We obtained DNA methylation measures at three time points (birth, age 7 years and age 17 years) in 1018 children from the Avon Longitudinal Study of Parents and Children (ALSPAC)...
January 15, 2017: International Journal of Epidemiology
https://www.readbyqxmd.com/read/28058013/aging-related-methylation-influences-the-gene-expression-of-key-control-genes-in-colorectal-cancer-and-adenoma
#8
Orsolya Galamb, Alexandra Kalmár, Barbara Kinga Barták, Árpád V Patai, Katalin Leiszter, Bálint Péterfia, Barnabás Wichmann, Gábor Valcz, Gábor Veres, Zsolt Tulassay, Béla Molnár
AIM: To analyze colorectal carcinogenesis and age-related DNA methylation alterations of gene sequences associated with epigenetic clock CpG sites. METHODS: In silico DNA methylation analysis of 353 epigenetic clock CpG sites published by Steve Horvath was performed using methylation array data for a set of 123 colonic tissue samples [64 colorectal cancer (CRC), 42 adenoma, 17 normal; GEO accession number: GSE48684]. Among the differentially methylated age-related genes, secreted frizzled related protein 1 (SFRP1) promoter methylation was further investigated in colonic tissue from 8 healthy adults, 19 normal children, 20 adenoma and 8 CRC patients using bisulfite-specific PCR followed by methylation-specific high resolution melting (MS-HRM) analysis...
December 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27955697/dna-methylation-signatures-of-chronic-low-grade-inflammation-are-associated-with-complex-diseases
#9
Symen Ligthart, Carola Marzi, Stella Aslibekyan, Michael M Mendelson, Karen N Conneely, Toshiko Tanaka, Elena Colicino, Lindsay L Waite, Roby Joehanes, Weihua Guan, Jennifer A Brody, Cathy Elks, Riccardo Marioni, Min A Jhun, Golareh Agha, Jan Bressler, Cavin K Ward-Caviness, Brian H Chen, Tianxiao Huan, Kelly Bakulski, Elias L Salfati, Giovanni Fiorito, Simone Wahl, Katharina Schramm, Jin Sha, Dena G Hernandez, Allan C Just, Jennifer A Smith, Nona Sotoodehnia, Luke C Pilling, James S Pankow, Phil S Tsao, Chunyu Liu, Wei Zhao, Simonetta Guarrera, Vasiliki J Michopoulos, Alicia K Smith, Marjolein J Peters, David Melzer, Pantel Vokonas, Myriam Fornage, Holger Prokisch, Joshua C Bis, Audrey Y Chu, Christian Herder, Harald Grallert, Chen Yao, Sonia Shah, Allan F McRae, Honghuang Lin, Steve Horvath, Daniele Fallin, Albert Hofman, Nicholas J Wareham, Kerri L Wiggins, Andrew P Feinberg, John M Starr, Peter M Visscher, Joanne M Murabito, Sharon L R Kardia, Devin M Absher, Elisabeth B Binder, Andrew B Singleton, Stefania Bandinelli, Annette Peters, Melanie Waldenberger, Giuseppe Matullo, Joel D Schwartz, Ellen W Demerath, André G Uitterlinden, Joyce B J van Meurs, Oscar H Franco, Yii-Der Ida Chen, Daniel Levy, Stephen T Turner, Ian J Deary, Kerry J Ressler, Josée Dupuis, Luigi Ferrucci, Ken K Ong, Themistocles L Assimes, Eric Boerwinkle, Wolfgang Koenig, Donna K Arnett, Andrea A Baccarelli, Emelia J Benjamin, Abbas Dehghan
BACKGROUND: Chronic low-grade inflammation reflects a subclinical immune response implicated in the pathogenesis of complex diseases. Identifying genetic loci where DNA methylation is associated with chronic low-grade inflammation may reveal novel pathways or therapeutic targets for inflammation. RESULTS: We performed a meta-analysis of epigenome-wide association studies (EWAS) of serum C-reactive protein (CRP), which is a sensitive marker of low-grade inflammation, in a large European population (n = 8863) and trans-ethnic replication in African Americans (n = 4111)...
December 12, 2016: Genome Biology
https://www.readbyqxmd.com/read/27926864/low-cd38-identifies-progenitor-like-inflammation-associated-luminal-cells-that-can-initiate-human-prostate-cancer-and-predict-poor-outcome
#10
Xian Liu, Tristan R Grogan, Haley Hieronymus, Takao Hashimoto, Jack Mottahedeh, Donghui Cheng, Lijun Zhang, Kevin Huang, Tanya Stoyanova, Jung Wook Park, Ruzanna O Shkhyan, Behdokht Nowroozizadeh, Matthew B Rettig, Charles L Sawyers, David Elashoff, Steve Horvath, Jiaoti Huang, Owen N Witte, Andrew S Goldstein
Inflammation is a risk factor for prostate cancer, but the mechanisms by which inflammation increases that risk are poorly understood. Here, we demonstrate that low expression of CD38 identifies a progenitor-like subset of luminal cells in the human prostate. CD38(lo) luminal cells are enriched in glands adjacent to inflammatory cells and exhibit epithelial nuclear factor κB (NF-κB) signaling. In response to oncogenic transformation, CD38(lo) luminal cells can initiate human prostate cancer in an in vivo tissue-regeneration assay...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27919067/genome-wide-changes-in-lncrna-splicing-and-regional-gene-expression-patterns-in-autism
#11
Neelroop N Parikshak, Vivek Swarup, T Grant Belgard, Manuel Irimia, Gokul Ramaswami, Michael J Gandal, Christopher Hartl, Virpi Leppa, Luis de la Torre Ubieta, Jerry Huang, Jennifer K Lowe, Benjamin J Blencowe, Steve Horvath, Daniel H Geschwind
Autism spectrum disorder (ASD) involves substantial genetic contributions. These contributions are profoundly heterogeneous but may converge on common pathways that are not yet well understood. Here, through post-mortem genome-wide transcriptome analysis of the largest cohort of samples analysed so far, to our knowledge, we interrogate the noncoding transcriptome, alternative splicing, and upstream molecular regulators to broaden our understanding of molecular convergence in ASD. Our analysis reveals ASD-associated dysregulation of primate-specific long noncoding RNAs (lncRNAs), downregulation of the alternative splicing of activity-dependent neuron-specific exons, and attenuation of normal differences in gene expression between the frontal and temporal lobes...
December 15, 2016: Nature
https://www.readbyqxmd.com/read/27717399/an-epigenetic-clock-for-gestational-age-at-birth-based-on-blood-methylation-data
#12
Anna K Knight, Jeffrey M Craig, Christiane Theda, Marie Bækvad-Hansen, Jonas Bybjerg-Grauholm, Christine S Hansen, Mads V Hollegaard, David M Hougaard, Preben B Mortensen, Shantel M Weinsheimer, Thomas M Werge, Patricia A Brennan, Joseph F Cubells, D Jeffrey Newport, Zachary N Stowe, Jeanie L Y Cheong, Philippa Dalach, Lex W Doyle, Yuk J Loke, Andrea A Baccarelli, Allan C Just, Robert O Wright, Mara M Téllez-Rojo, Katherine Svensson, Letizia Trevisi, Elizabeth M Kennedy, Elisabeth B Binder, Stella Iurato, Darina Czamara, Katri Räikkönen, Jari M T Lahti, Anu-Katriina Pesonen, Eero Kajantie, Pia M Villa, Hannele Laivuori, Esa Hämäläinen, Hea Jin Park, Lynn B Bailey, Sasha E Parets, Varun Kilaru, Ramkumar Menon, Steve Horvath, Nicole R Bush, Kaja Z LeWinn, Frances A Tylavsky, Karen N Conneely, Alicia K Smith
BACKGROUND: Gestational age is often used as a proxy for developmental maturity by clinicians and researchers alike. DNA methylation has previously been shown to be associated with age and has been used to accurately estimate chronological age in children and adults. In the current study, we examine whether DNA methylation in cord blood can be used to estimate gestational age at birth. RESULTS: We find that gestational age can be accurately estimated from DNA methylation of neonatal cord blood and blood spot samples...
October 7, 2016: Genome Biology
https://www.readbyqxmd.com/read/27702440/epigenetic-aging-and-immune-senescence-in-women-with-insomnia-symptoms-findings-from-the-women-s-health-initiative-study
#13
Judith E Carroll, Michael R Irwin, Morgan Levine, Teresa E Seeman, Devin Absher, Themistocles Assimes, Steve Horvath
BACKGROUND: Insomnia symptoms are associated with vulnerability to age-related morbidity and mortality. Cross-sectional data suggest that accelerated biological aging may be a mechanism through which sleep influences risk. A novel method for determining age acceleration using epigenetic methylation to DNA has demonstrated predictive utility as an epigenetic clock and prognostic of age-related morbidity and mortality. METHODS: We examined the association of epigenetic age and immune cell aging with sleep in the Women's Health Initiative study (N = 2078; mean 64...
January 15, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/27690265/dna-methylation-based-measures-of-biological-age-meta-analysis-predicting-time-to-death
#14
Brian H Chen, Riccardo E Marioni, Elena Colicino, Marjolein J Peters, Cavin K Ward-Caviness, Pei-Chien Tsai, Nicholas S Roetker, Allan C Just, Ellen W Demerath, Weihua Guan, Jan Bressler, Myriam Fornage, Stephanie Studenski, Amy R Vandiver, Ann Zenobia Moore, Toshiko Tanaka, Douglas P Kiel, Liming Liang, Pantel Vokonas, Joel Schwartz, Kathryn L Lunetta, Joanne M Murabito, Stefania Bandinelli, Dena G Hernandez, David Melzer, Michael Nalls, Luke C Pilling, Timothy R Price, Andrew B Singleton, Christian Gieger, Rolf Holle, Anja Kretschmer, Florian Kronenberg, Sonja Kunze, Jakob Linseisen, Christine Meisinger, Wolfgang Rathmann, Melanie Waldenberger, Peter M Visscher, Sonia Shah, Naomi R Wray, Allan F McRae, Oscar H Franco, Albert Hofman, André G Uitterlinden, Devin Absher, Themistocles Assimes, Morgan E Levine, Ake T Lu, Philip S Tsao, Lifang Hou, JoAnn E Manson, Cara L Carty, Andrea Z LaCroix, Alexander P Reiner, Tim D Spector, Andrew P Feinberg, Daniel Levy, Andrea Baccarelli, Joyce van Meurs, Jordana T Bell, Annette Peters, Ian J Deary, James S Pankow, Luigi Ferrucci, Steve Horvath
Estimates of biological age based on DNA methylation patterns, often referred to as "epigenetic age", "DNAm age", have been shown to be robust biomarkers of age in humans. We previously demonstrated that independent of chronological age, epigenetic age assessed in blood predicted all-cause mortality in four human cohorts. Here, we expanded our original observation to 13 different cohorts for a total sample size of 13,089 individuals, including three racial/ethnic groups. In addition, we examined whether incorporating information on blood cell composition into the epigenetic age metrics improves their predictive power for mortality...
September 28, 2016: Aging
https://www.readbyqxmd.com/read/27689435/specific-premature-epigenetic-aging-of-cartilage-in-osteoarthritis
#15
Laura Vidal-Bralo, Yolanda Lopez-Golan, Antonio Mera-Varela, Ignacio Rego-Perez, Steve Horvath, Yuhua Zhang, Álvaro Del Real, Guangju Zhai, Francisco J Blanco, Jose A Riancho, Juan J Gomez-Reino, Antonio Gonzalez
Osteoarthritis (OA) is a disease affecting multiple tissues of the joints in the elderly, but most notably articular cartilage. Premature biological aging has been described in this tissue and in blood cells, suggesting a systemic component of premature aging in the pathogenesis of OA. Here, we have explored epigenetic aging in OA at the local (cartilage and bone) and systemic (blood) levels. Two DNA methylation age-measures (DmAM) were used: the multi-tissue age estimator for cartilage and bone; and a blood-specific biomarker for blood...
September 28, 2016: Aging
https://www.readbyqxmd.com/read/27644593/maintenance-of-age-in-human-neurons-generated-by-microrna-based-neuronal-conversion-of-fibroblasts
#16
Christine J Huh, Bo Zhang, Matheus B Victor, Sonika Dahiya, Luis Fz Batista, Steve Horvath, Andrew S Yoo
Aging is a major risk factor in many forms of late-onset neurodegenerative disorders. The ability to recapitulate age-related characteristics of human neurons in culture will offer unprecedented opportunities to study the biological processes underlying neuronal aging. Here, we show that using a recently demonstrated microRNA-based cellular reprogramming approach, human fibroblasts from postnatal to near centenarian donors can be efficiently converted into neurons that maintain multiple age-associated signatures...
September 20, 2016: ELife
https://www.readbyqxmd.com/read/27511193/an-epigenetic-clock-analysis-of-race-ethnicity-sex-and-coronary-heart-disease
#17
Steve Horvath, Michael Gurven, Morgan E Levine, Benjamin C Trumble, Hillard Kaplan, Hooman Allayee, Beate R Ritz, Brian Chen, Ake T Lu, Tammy M Rickabaugh, Beth D Jamieson, Dianjianyi Sun, Shengxu Li, Wei Chen, Lluis Quintana-Murci, Maud Fagny, Michael S Kobor, Philip S Tsao, Alexander P Reiner, Kerstin L Edlefsen, Devin Absher, Themistocles L Assimes
BACKGROUND: Epigenetic biomarkers of aging (the "epigenetic clock") have the potential to address puzzling findings surrounding mortality rates and incidence of cardio-metabolic disease such as: (1) women consistently exhibiting lower mortality than men despite having higher levels of morbidity; (2) racial/ethnic groups having different mortality rates even after adjusting for socioeconomic differences; (3) the black/white mortality cross-over effect in late adulthood; and (4) Hispanics in the United States having a longer life expectancy than Caucasians despite having a higher burden of traditional cardio-metabolic risk factors...
August 11, 2016: Genome Biology
https://www.readbyqxmd.com/read/27479945/huntington-s-disease-accelerates-epigenetic-aging-of-human-brain-and-disrupts-dna-methylation-levels
#18
Steve Horvath, Peter Langfelder, Seung Kwak, Jeff Aaronson, Jim Rosinski, Thomas F Vogt, Marika Eszes, Richard L M Faull, Maurice A Curtis, Henry J Waldvogel, Oi-Wa Choi, Spencer Tung, Harry V Vinters, Giovanni Coppola, X William Yang
Age of Huntington's disease (HD) motoric onset is strongly related to the number of CAG trinucleotide repeats in the huntingtin gene, suggesting that biological tissue age plays an important role in disease etiology. Recently, a DNA methylation based biomarker of tissue age has been advanced as an epigenetic aging clock. We sought to inquire if HD is associated with an accelerated epigenetic age. DNA methylation data was generated for 475 brain samples from various brain regions of 26 HD cases and 39 controls...
July 2016: Aging
https://www.readbyqxmd.com/read/27470971/rheology-and-structure-of-surface-crosslinked-surfactant-activated-microgels
#19
Dongcui Li, Raymond Hsu, Brian Figura, Robert Jacobs, Sinan Li, Steve Horvath, Ted Clifford, Krishnan Chari
Nonionic surfactant-activated microgels (SAMs), composed of hydrophobic alkyl acrylates and hydrophilic hydroxyalkyl esters that utilize the effects of surfactant mediated swelling and interaction to provide pH-independent rheological properties, were previously reported as a new pathway to the rheology modification of surfactant solutions. Crosslinking was shown to play an important role in the properties of these soft microgel systems. To understand the impact of crosslinking chemistry on SAM polymers, we have compared two types of SAM polymers: a conventionally crosslinked SAM polymer via allyl pentaerythritol and a novel SAM polymer, where the surface is self-crosslinked via a reactive surfactant...
September 14, 2016: Soft Matter
https://www.readbyqxmd.com/read/27457926/menopause-accelerates-biological-aging
#20
Morgan E Levine, Ake T Lu, Brian H Chen, Dena G Hernandez, Andrew B Singleton, Luigi Ferrucci, Stefania Bandinelli, Elias Salfati, JoAnn E Manson, Austin Quach, Cynthia D J Kusters, Diana Kuh, Andrew Wong, Andrew E Teschendorff, Martin Widschwendter, Beate R Ritz, Devin Absher, Themistocles L Assimes, Steve Horvath
Although epigenetic processes have been linked to aging and disease in other systems, it is not yet known whether they relate to reproductive aging. Recently, we developed a highly accurate epigenetic biomarker of age (known as the "epigenetic clock"), which is based on DNA methylation levels. Here we carry out an epigenetic clock analysis of blood, saliva, and buccal epithelium using data from four large studies: the Women's Health Initiative (n = 1,864); Invecchiare nel Chianti (n = 200); Parkinson's disease, Environment, and Genes (n = 256); and the United Kingdom Medical Research Council National Survey of Health and Development (n = 790)...
August 16, 2016: Proceedings of the National Academy of Sciences of the United States of America
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