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Shah RG, Salafia CM, Girardi T, Rukat C, Brunner J, Barrett ES, O'Connor TG, Misra DP, Miller RK. Maternal affective symptoms and sleep quality have sex-specific associations with placental topography. J Affect Disord 2024; 360:62-70. [PMID: 38806063 DOI: 10.1016/j.jad.2024.05.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 04/10/2024] [Accepted: 05/21/2024] [Indexed: 05/30/2024]
Abstract
BACKGROUND The impacts of prenatal maternal affective symptoms on the placental structure are not well-established. Employing Geographic Information System (GIS) spatial autocorrelation, Moran's I, can help characterize placental thickness uniformity/variability and evaluate the impacts of maternal distress on placental topography. METHODS This study (N = 126) utilized cohort data on prenatal maternal affective symptoms and placental 2D and 3D morphology. Prenatal maternal depression, stress, anxiety and sleep quality were scored for each trimester using the Edinburgh Postnatal Depression Scale (EPDS), Stressful Life Event Scale (SLE), Penn State Worry Questionnaire (PSWQ), and Pittsburgh Sleep Quality Index (PSQI), respectively. Placental shape was divided into Voronoi cells and thickness variability among these cells was computed using Moran's I for 4-nearest neighbors and neighbors within a 10 cm radius. Sex-stratified Spearman correlations and linear regression were used to study associations between mean placental thickness, placental GIS variables, placental weight and the average score of each maternal variable. RESULTS For mothers carrying boys, poor sleep was associated with higher mean thickness (r = 0.308,p = 0.035) and lower placental thickness uniformity (r = -0.36,p = 0.012). Lower placental weight (r = 0.395,p = 0.003), higher maternal depression (r = -0.318,p = 0.019) and worry/anxiety (r = -0.362,p = 0.007) were associated with lower placental thickness uniformity for mothers carrying girls. LIMITATIONS The study is exploratory and not all GIS models were developed. Excluding high-risk pregnancies prevented investigating pregnancy complications related hypotheses. A larger sample size is needed for greater confidence for clinical application. CONCLUSIONS Placental topography can be studied using GIS theory and has shown that prenatal maternal affective symptoms and sleep have sex-specific associations with placental thickness.
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Affiliation(s)
- Ruchit G Shah
- Placental Analytics, LLC, New Rochelle, USA and New York State Institute for Basic Research, Staten Island, USA.
| | - Carolyn M Salafia
- Placental Analytics, LLC, New Rochelle, USA and New York State Institute for Basic Research, Staten Island, USA
| | - Theresa Girardi
- Placental Analytics, LLC, New Rochelle, USA and New York State Institute for Basic Research, Staten Island, USA
| | - Cate Rukat
- Placental Analytics, LLC, New Rochelle, USA and New York State Institute for Basic Research, Staten Island, USA
| | - Jessica Brunner
- Department of Obstetrics and Gynecology, University of Rochester School of Medicine and Dentistry, Rochester, USA
| | - Emily S Barrett
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health; Environmental and Occupational Health Sciences Institute, Piscataway, USA
| | - Thomas G O'Connor
- Departments of Psychiatry, Obstetrics/Gynecology, Pediatrics, University of Rochester, School of Medicine and Dentistry, Rochester, USA
| | - Dawn P Misra
- Department of Epidemiology and Biostatistics, Michigan State University, MI, USA
| | - Richard K Miller
- Departments of Obstetrics and Gynecology, Environmental Medicine, Pathology, and Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester, USA
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Meredith Weiss S, Aydin E, Lloyd-Fox S, Johnson MH. Trajectories of brain and behaviour development in the womb, at birth and through infancy. Nat Hum Behav 2024:10.1038/s41562-024-01896-7. [PMID: 38886534 DOI: 10.1038/s41562-024-01896-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 04/04/2024] [Indexed: 06/20/2024]
Abstract
Birth is often seen as the starting point for studying effects of the environment on human development, with much research focused on the capacities of young infants. However, recent imaging advances have revealed that the complex behaviours of the fetus and the uterine environment exert influence. Birth is now viewed as a punctuate event along a developmental pathway of increasing autonomy of the child from their mother. Here we highlight (1) increasing physiological autonomy and perceptual sensitivity in the fetus, (2) physiological and neurochemical processes associated with birth that influence future behaviour, (3) the recalibration of motor and sensory systems in the newborn to adapt to the world outside the womb and (4) the effect of the prenatal environment on later infant behaviours and brain function. Taken together, these lines of evidence move us beyond nature-nurture issues to a developmental human lifespan view beginning within the womb.
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Affiliation(s)
- Staci Meredith Weiss
- University of Cambridge, Department of Psychology, Cambridge, UK.
- University of Roehampton, School of Psychology, London, UK.
| | - Ezra Aydin
- University of Cambridge, Department of Psychology, Cambridge, UK
- Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA
| | - Sarah Lloyd-Fox
- University of Cambridge, Department of Psychology, Cambridge, UK
| | - Mark H Johnson
- University of Cambridge, Department of Psychology, Cambridge, UK
- Centre for Brain and Cognitive Development, Birkbeck, University of London, London, UK
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3
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Santaguida E, Bergamasco M. A perspective-based analysis of attachment from prenatal period to second year postnatal life. Front Psychol 2024; 15:1296242. [PMID: 38840732 PMCID: PMC11150629 DOI: 10.3389/fpsyg.2024.1296242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 05/08/2024] [Indexed: 06/07/2024] Open
Abstract
Attachment is one of the foundational themes in the history of the psychological development of human beings. For this reason, we assume that it must be approached by taking into account multiple scientific perspectives. The present review aims at analyzing the state of the art regarding the genetic, neurobiological and cognitive mechanisms underlying the development of attachment bonding, considering the child as the frame of reference. We hypothesize that attachment may be present in prototypical forms even in the prenatal period, thus our analysis has a temporal origin in the intrauterine period preceding birth. The intrauterine period is assumed to be a period of maximum sensitivity to stimuli and in particular to those coming from a potential primary caregiver: the biological mother. We conclude with a reframing of the state of the art and propose that future research work would benefit from a superordinate model of attachment, capable of containing and regulating all its components and variables.
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Affiliation(s)
- Erica Santaguida
- Institute of Mechanical Intelligence, Scuola Superiore Sant’Anna, Pisa, Italy
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4
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Mottola F, Palmieri I, Carannante M, Barretta A, Roychoudhury S, Rocco L. Oxidative Stress Biomarkers in Male Infertility: Established Methodologies and Future Perspectives. Genes (Basel) 2024; 15:539. [PMID: 38790168 PMCID: PMC11121722 DOI: 10.3390/genes15050539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024] Open
Abstract
Male fertility can be affected by oxidative stress (OS), which occurs when an imbalance between the production of reactive oxygen species (ROS) and the body's ability to neutralize them arises. OS can damage cells and influence sperm production. High levels of lipid peroxidation have been linked to reduced sperm motility and decreased fertilization ability. This literature review discusses the most commonly used biomarkers to measure sperm damage caused by ROS, such as the high level of OS in seminal plasma as an indicator of imbalance in antioxidant activity. The investigated biomarkers include 8-hydroxy-2-deoxyguanosine acid (8-OHdG), a marker of DNA damage caused by ROS, and F2 isoprostanoids (8-isoprostanes) produced by lipid peroxidation. Furthermore, this review focuses on recent methodologies including the NGS polymorphisms and differentially expressed gene (DEG) analysis, as well as the epigenetic mechanisms linked to ROS during spermatogenesis along with new methodologies developed to evaluate OS biomarkers. Finally, this review addresses a valuable insight into the mechanisms of male infertility provided by these advances and how they have led to new treatment possibilities. Overall, the use of biomarkers to evaluate OS in male infertility has supplied innovative diagnostic and therapeutic approaches, enhancing our understanding of male infertility mechanisms.
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Affiliation(s)
- Filomena Mottola
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy; (F.M.); (I.P.); (M.C.); (A.B.)
| | - Ilaria Palmieri
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy; (F.M.); (I.P.); (M.C.); (A.B.)
| | - Maria Carannante
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy; (F.M.); (I.P.); (M.C.); (A.B.)
| | - Angela Barretta
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy; (F.M.); (I.P.); (M.C.); (A.B.)
| | | | - Lucia Rocco
- Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, University of Campania Luigi Vanvitelli, 81100 Caserta, Italy; (F.M.); (I.P.); (M.C.); (A.B.)
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5
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Sosa-Larios TC, Ortega-Márquez AL, Rodríguez-Aguilera JR, Vázquez-Martínez ER, Domínguez-López A, Morimoto S. A low-protein maternal diet during gestation affects the expression of key pancreatic β-cell genes and the methylation status of the regulatory region of the MafA gene in the offspring of Wistar rats. Front Vet Sci 2023; 10:1138564. [PMID: 36992977 PMCID: PMC10040775 DOI: 10.3389/fvets.2023.1138564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/21/2023] [Indexed: 03/16/2023] Open
Abstract
Maternal nutrition during gestation has important effects on gene expression-mediated metabolic programming in offspring. To evaluate the effect of a protein-restricted maternal diet during gestation, pancreatic islets from male progeny of Wistar rats were studied at postnatal days (PND) 36 (juveniles) and 90 (young adults). The expression of key genes involved in β-cell function and the DNA methylation pattern of the regulatory regions of two such genes, Pdx1 (pancreatic and duodenal homeobox 1) and MafA (musculoaponeurotic fibrosarcoma oncogene family, protein A), were investigated. Gene expression analysis in the pancreatic islets of restricted offspring showed significant differences compared with the control group at PND 36 (P < 0.05). The insulin 1 and 2 (Ins1 and Ins2), Glut2 (glucose transporter 2), Pdx1, MafA, and Atf2 (activating transcription factor 2), genes were upregulated, while glucokinase (Gck) and NeuroD1 (neuronal differentiation 1) were downregulated. Additionally, we studied whether the gene expression differences in Pdx1 and MafA between control and restricted offspring were associated with differential DNA methylation status in their regulatory regions. A decrease in the DNA methylation levels was found in the 5' flanking region between nucleotides −8118 to −7750 of the MafA regulatory region in restricted offspring compared with control pancreatic islets. In conclusion, low protein availability during gestation causes the upregulation of MafA gene expression in pancreatic β-cells in the male juvenile offspring at least in part through DNA hypomethylation. This process may contribute to developmental dysregulation of β-cell function and influence the long-term health of the offspring.
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Affiliation(s)
- Tonantzin C. Sosa-Larios
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City, Mexico
| | - Ana L. Ortega-Márquez
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City, Mexico
| | - Jesús R. Rodríguez-Aguilera
- Departamento de Biología Celular y Desarrollo, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Edgar R. Vázquez-Martínez
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Aaron Domínguez-López
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Sumiko Morimoto
- Departamento de Biología de la Reproducción, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubirán”, Mexico City, Mexico
- *Correspondence: Sumiko Morimoto
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Noro F, Santonastaso F, Marotta A, Bonaccio M, Orlandi S, Tirozzi A, Costanzo S, De Curtis A, Gianfagna F, Di Castelnuovo A, Brighenti F, Cerletti C, Donati MB, de Gaetano G, Iacoviello L, Gialluisi A, Izzi B, de Gaetano G, Donati MB, Bonaccio M, Bonanni A, Cerletti C, Costanzo S, De Curtis A, Di Castelnuovo A, Gialluisi A, Gianfagna F, Persichillo M, Di Prospero T, Vermylen J, Pegoraro R, Spagnolo A, Assanelli D, Rago L, Costanzo S, Olivieri M, Panzera T, Di Castelnuovo A, Bonaccio M, Costanzo S, Esposito S, Gialluisi A, Gianfagna F, Orlandi S, Ruggiero E, Tirozzi A, De Curtis A, Magnacca S, Noro F, Tirozzi A, Persichillo M, Bracone F, Panzera T, Bonanni A. Association of nutritional glycaemic indices with global DNA methylation patterns: results from the Moli-sani cohort. Clin Epigenetics 2022; 14:189. [PMID: 36578055 PMCID: PMC9798643 DOI: 10.1186/s13148-022-01407-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 12/13/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND High dietary glycaemic index (GI) and load (GL) have been associated with increased risk of various cardiometabolic conditions. Among the molecular potential mechanisms underlying this relationship, DNA methylation has been studied, but a direct link between high GI and/or GL of diet and global DNA methylation levels has not been proved yet. We analyzed the associations between GI and GL and global DNA methylation patterns within an Italian population. RESULTS Genomic DNA methylation (5mC) and hydroxymethylation (5hmC) levels were measured in 1080 buffy coat samples from participants of the Moli-sani study (mean(SD) = 54.9(11.5) years; 52% women) via ELISA. A 188-item Food Frequency Questionnaire was used to assess food intake and dietary GI and GL for each participant were calculated. Multiple linear regressions were used to investigate the associations between dietary GI and GL and global 5mC and 5hmC levels, as well as the proportion of effect explained by metabolic and inflammatory markers. We found negative associations of GI with both 5mC (β (SE) = - 0.073 (0.027), p = 0.007) and 5hmC (- 0.084 (0.030), p = 0.006), and of GL with 5mC (- 0.14 (0.060), p = 0.014). Circulating biomarkers did not explain the above-mentioned associations. Gender interaction analyses revealed a significant association of the gender-x-GL interaction with 5mC levels, with men showing an inverse association three times as negative as in women (interaction β (SE) = - 0.16 (0.06), p = 0.005). CONCLUSIONS Our findings suggest that global DNA methylation and hydroxymethylation patterns represent a biomarker of carbohydrate intake. Based on the differential association of GL with 5mC between men and women, further gender-based separate approaches are warranted.
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Affiliation(s)
- Fabrizia Noro
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Federica Santonastaso
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy ,grid.510779.d0000 0004 9414 6915Present Address: Human Technopole, Viale Rita Levi Montalcini 1, 20157 Milan, Italy ,grid.4708.b0000 0004 1757 2822Present Address: European School of Molecular Medicine, University of Milan, 20122 Milan, Italy
| | - Annalisa Marotta
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy ,grid.412451.70000 0001 2181 4941Present Address: Center of Predictive Molecular Medicine, Center for Excellence on Ageing and Translational Medicine (CAST), University of Chieti-Pescara, Chieti, Italy
| | - Marialaura Bonaccio
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Sabatino Orlandi
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Alfonsina Tirozzi
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Simona Costanzo
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Amalia De Curtis
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Francesco Gianfagna
- grid.18147.3b0000000121724807EPIMED Research Center, Department of Medicine and Surgery, University of Insubria, Varese, Italy ,grid.477084.80000 0004 1787 3414Mediterranea Cardiocentro, Naples, Italy
| | | | - Furio Brighenti
- grid.10383.390000 0004 1758 0937Department of Food and Drug, University of Parma, Parma, Italy
| | - Chiara Cerletti
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Maria Benedetta Donati
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Giovanni de Gaetano
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
| | - Licia Iacoviello
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy ,grid.18147.3b0000000121724807EPIMED Research Center, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Alessandro Gialluisi
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy ,grid.18147.3b0000000121724807EPIMED Research Center, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Benedetta Izzi
- grid.419543.e0000 0004 1760 3561Department of Epidemiology and Prevention, IRCCS Neuromed, Via Dell’Elettronica, 86077 Pozzilli, IS Italy
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Liu B, Li H, Niu P, Tao W, Huang F, Wang J, Gao Q. Effects of Different Energy Diets on FSHR mRNA Expression and DNA Methylation in Promoter Region of Duolang Sheep During Diestrus. DNA Cell Biol 2022; 41:643-656. [PMID: 35793535 DOI: 10.1089/dna.2021.1018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The aim of this study was to study the relationship between the methylation level of the promoter region of follicle-stimulating hormone receptor (FSHR) gene and the mRNA expression of Duolang sheep fed different energy diets. In this experiment, three groups of diets with different energy levels (dietary nutrient level reference (NY/T816 - 2004)) were designed to obtain medium energy level diets with metabolic energy of 10.88 MJ/d. The treatments with high and low energy levels increased and decreased by 15%, 12.51, and 9.25 MJ/d, respectively, on the basis of medium energy level. Total RNA and genomic DNA were extracted from the ovaries of Duolang sheep, and qPCR was performed. Bisulfite genomic sequencing PCR and sequence alignment were used to detect the relationship between the relative expression level of FSHR and methylation. The results showed that the expression of FSHR in high-energy group and medium-energy group was significantly higher than that in low-energy group (p < 0.01), and there was no significant difference between high-energy group and medium-energy group (p > 0.05). The methylation rate of the target fragment in the promoter region of FSHR gene was 41.67% in the high-energy group, 75.00% in the medium-energy group, and 83.33% in the low-energy group. This study revealed that different dietary energy levels had certain effects on DNA methylation level of FSHR gene and then affected gene expression, and the expression level was negatively correlated with methylation level.
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Affiliation(s)
- Bo Liu
- College of Animal Science, TarimUniversity, Alar, China
| | - Hongjian Li
- Xinjiang Urumqi Animal Husbandry and Veterinary General Station, Urumqi, China
| | - Peng Niu
- College of Animal Science, TarimUniversity, Alar, China
| | - Weikun Tao
- College of Animal Science, TarimUniversity, Alar, China
| | - Fei Huang
- College of Animal Science, TarimUniversity, Alar, China
| | - Jie Wang
- Xinjiang Urumqi Animal Husbandry and Veterinary General Station, Urumqi, China
| | - Qinghua Gao
- College of Animal Science, TarimUniversity, Alar, China.,College of Life Sciences, TarimUniversity, Alar, China.,Key Laboratory of Tarim Animal Husbandry Science and Technology, Xinjiang Production & Construction Corps, Alar, China
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Beneficial metabolic effects of probiotic supplementation in dams and offspring following hypercaloric diet during pregnancy. NUTR CLIN METAB 2022. [DOI: 10.1016/j.nupar.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Saito T, Whatmore P, Taylor JF, Fernandes JMO, Adam AC, Tocher DR, Espe M, Skjærven KH. Micronutrient supplementation affects DNA methylation in male gonads with potential intergenerational epigenetic inheritance involving the embryonic development through glutamate receptor-associated genes. BMC Genomics 2022; 23:115. [PMID: 35144563 PMCID: PMC8832813 DOI: 10.1186/s12864-022-08348-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2021] [Accepted: 01/28/2022] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND DNA methylation has an important role in intergenerational inheritance. An increasing number of studies have reported evidence of germline inheritance of DNA methylation induced by nutritional signals in mammals. Vitamins and minerals as micronutrients contribute to growth performance in vertebrates, including Atlantic salmon (Salmo salar), and also have a role in epigenetics as environmental factors that alter DNA methylation status. It is important to understand whether micronutrients in the paternal diet can influence the offspring through alterations of DNA methylation signatures in male germ cells. RESULTS Here, we show the effect of micronutrient supplementation on DNA methylation profiles in the male gonad through a whole life cycle feeding trial of Atlantic salmon fed three graded levels of micronutrient components. Our results strongly indicate that micronutrient supplementation affects the DNA methylation status of genes associated with cell signalling, synaptic signalling, and embryonic development. In particular, it substantially affects DNA methylation status in the promoter region of a glutamate receptor gene, glutamate receptor ionotropic, NMDA 3A-like (grin3a-like), when the fish are fed both medium and high doses of micronutrients. Furthermore, two transcription factors, histone deacetylase 2 (hdac2) and a zinc finger protein, bind to the hyper-methylated site in the grin3a-like promoter. An estimated function of hdac2 together with a zinc finger indicates that grin3a-like has a potential role in intergenerational epigenetic inheritance and the regulation of embryonic development affected by paternal diet. CONCLUSIONS The present study demonstrates alterations of gene expression patterns and DNA methylation signatures in the male gonad when Atlantic salmon are fed different levels of micronutrients. Alterations of gene expression patterns are of great interest because the gonads are supposed to have limited metabolic activities compared to other organs, whereas alterations of DNA methylation signatures are of great importance in the field of nutritional epigenetics because the signatures affected by nutrition could be transferred to the next generation. We provide extensive data resources for future work in the context of potential intergenerational inheritance through the male germline.
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Affiliation(s)
| | | | - John F Taylor
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Scotland, UK
| | | | | | - Douglas R Tocher
- Institute of Aquaculture, Faculty of Natural Sciences, University of Stirling, Scotland, UK
| | - Marit Espe
- Institute of Marine Research, Bergen, Norway
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Ellur G, Sukhdeo SV, Khan MT, Sharan K. Maternal high protein-diet programs impairment of offspring's bone mass through miR-24-1-5p mediated targeting of SMAD5 in osteoblasts. Cell Mol Life Sci 2021; 78:1729-1744. [PMID: 32734584 PMCID: PMC11071892 DOI: 10.1007/s00018-020-03608-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 12/25/2022]
Abstract
Maternal nutrition is crucial for the offspring's skeleton development and the onset of osteoporosis later in life. While maternal low protein diet has been shown to regulate bone mass negatively, the effect of a high protein diet (HP) remains unexplored. Here, we found that C57BL/6 mice fed with HP delivered offspring with decreased skeletal mineralization at birth and reduced bone mass throughout their life due to a decline in their osteoblast maturation. A small RNA sequencing study revealed that miR-24-1-5p was highly upregulated in HP group osteoblasts. Target prediction and validation studies identified SMAD-5 as a direct target of miR-24-1-5p. Furthermore, mimic and inhibitor studies showed a negative correlation between miR-24-1-5p expression and osteoblast function. Moreover, ex vivo inhibition of miR-24-1-5p reversed the reduced maturation and SMAD-5 expression in the HP group osteoblasts. Together, we show that maternal HP diminishes the bone mass of the offspring through miR-24-1-5p.
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Affiliation(s)
- Govindraj Ellur
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysore, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Shinde Vijay Sukhdeo
- Department of Biochemistry, CSIR-Central Food Technological Research Institute, Mysore, India
| | - Md Touseef Khan
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysore, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Kunal Sharan
- Department of Molecular Nutrition, CSIR-Central Food Technological Research Institute, Mysore, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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11
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Calvani M, Anania C, Cuomo B, D’Auria E, Decimo F, Indirli GC, Marseglia G, Mastrorilli V, Sartorio MUA, Santoro A, Veronelli E. Non-IgE- or Mixed IgE/Non-IgE-Mediated Gastrointestinal Food Allergies in the First Years of Life: Old and New Tools for Diagnosis. Nutrients 2021; 13:226. [PMID: 33466746 PMCID: PMC7829867 DOI: 10.3390/nu13010226] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/06/2021] [Accepted: 01/09/2021] [Indexed: 12/11/2022] Open
Abstract
non-IgE and mixed gastrointestinal food allergies present various specific, well-characterized clinical pictures such as food protein-induced allergic proctocolitis, food protein-induced enterocolitis and food protein-induced enteropathy syndrome as well as eosinophilic gastrointestinal disorders such as eosinophilic esophagitis, allergic eosinophilic gastroenteritis and eosinophilic colitis. The aim of this article is to provide an updated review of their different clinical presentations, to suggest a correct approach to their diagnosis and to discuss the usefulness of both old and new diagnostic tools, including fecal biomarkers, atopy patch tests, endoscopy, specific IgG and IgG4 testing, allergen-specific lymphocyte stimulation test (ALST) and clinical score (CoMiss).
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Affiliation(s)
- Mauro Calvani
- Operative Unit of Pediatrics, S. Camillo-Forlanini Hospital, 00152 Rome, Italy
| | - Caterina Anania
- Immunology and Allergology Unit, Department of Mother-Child, Urological Science, Sapienza University of Rome, 00161 Rome, Italy;
| | - Barbara Cuomo
- Operative Complex Unit of Pediatrics, Belcolle Hospital, 00100 Viterbo, Italy;
| | - Enza D’Auria
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, University of Milan, 20154 Milan, Italy; (E.D.); (M.U.A.S.)
| | - Fabio Decimo
- Department of Woman, Child and of General and Specialized Surgery, University of Campania “Luigi Vanvitelli”, 80100 Naples, Italy;
| | - Giovanni Cosimo Indirli
- Pediatric Allergology and Immunology (SIAIP) for Regions Puglia and Basilicata, 73100 Lecce, Italy;
| | - Gianluigi Marseglia
- Pediatric Clinic, Pediatrics Department, Policlinico San Matteo, University of Pavia, 27100 Pavia, Italy;
| | - Violetta Mastrorilli
- Operative Complex Unit of Pediatrics and Emergency, Giovanni XXIII Hospital, 70056 Bari, Italy;
| | - Marco Ugo Andrea Sartorio
- Department of Pediatrics, Vittore Buzzi Children’s Hospital, University of Milan, 20154 Milan, Italy; (E.D.); (M.U.A.S.)
| | - Angelica Santoro
- Pediatric Clinic, Mother-Child Department, University of Parma, 43121 Parma, Italy;
| | - Elisabetta Veronelli
- Food Allergy Committee of the Italian Society of Pediatric Allergy and Immunology (SIAIP), Pediatric Department, Garbagnate Milanese Hospital, ASST Rhodense, 70056 Garbagnate Milanese, Italy;
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12
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Leachman JR, Rea MD, Cohn DM, Xu X, Fondufe-Mittendorf YN, Loria AS. Exacerbated obesogenic response in female mice exposed to early life stress is linked to fat depot-specific upregulation of leptin protein expression. Am J Physiol Endocrinol Metab 2020; 319:E852-E862. [PMID: 32830551 PMCID: PMC7790118 DOI: 10.1152/ajpendo.00243.2020] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Early life stress (ELS) is an independent risk factor for increased BMI and cardiometabolic disease risk later in life. We have previously shown that a mouse model of ELS, maternal separation and early weaning (MSEW), exacerbates high-fat diet (HF)-induced obesity only in adult female mice. Therefore, the aim of this study was to investigate 1) whether the short- and long-term effects of HF on leptin expression are influenced by MSEW in a sex-specific manner and 2) the potential epigenetic mechanisms underlying the MSEW-induced changes in leptin expression. After 1 wk of HF, both MSEW male and female mice displayed increased fat mass compared with controls (P < 0.05). However, only MSEW female mice showed elevated leptin mRNA expression in gonadal white adipose tissue (gWAT; P < 0.05). After 12 wk of HF, fat mass remained increased only in female mice (P < 0.05). Moreover, plasma leptin and both leptin mRNA and protein expression in gWAT were augmented in MSEW female mice compered to controls (P < 0.05), but not in MSEW male mice. This association was not present in subcutaneous WAT. Furthermore, among 16 CpG sites in the leptin promoter, we identified three hypomethylated sites in tissue from HF-fed MSEW female mice compared with controls (3, 15, and 16, P < 0.05). These hypomethylated sites showed greater binding of key adipogenic factors such as PPARγ (P < 0.05). Taken together, our study reveals that MSEW superimposed to HF increases leptin protein expression in a sex- and fat depot-specific fashion. Our data suggest that the mechanism by which MSEW increases leptin expression could be epigenetic.
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Affiliation(s)
- Jacqueline R Leachman
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Mathew D Rea
- Department of Molecular and Cellular Biochemistry, University of Kentucky, Lexington, Kentucky
| | - Dianne M Cohn
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | - Xiu Xu
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
| | | | - Analia S Loria
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky
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13
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Galan C, Krykbaeva M, Rando OJ. Early life lessons: The lasting effects of germline epigenetic information on organismal development. Mol Metab 2020; 38:100924. [PMID: 31974037 PMCID: PMC7300385 DOI: 10.1016/j.molmet.2019.12.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/04/2019] [Accepted: 12/05/2019] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND An organism's metabolic phenotype is primarily affected by its genotype, its lifestyle, and the nutritional composition of its food supply. In addition, it is now clear from studies in many different species that ancestral environments can also modulate metabolism in at least one to two generations of offspring. SCOPE OF REVIEW We limit ourselves here to paternal effects in mammals, primarily focusing on studies performed in inbred rodent models. Although hundreds of studies link paternal diets and offspring metabolism, the mechanistic basis by which epigenetic information in sperm programs nutrient handling in the next generation remains mysterious. Our goal in this review is to provide a brief overview of paternal effect paradigms and the germline epigenome. We then pivot to exploring one key mystery in this literature: how do epigenetic changes in sperm, most of which are likely to act transiently in the early embryo, ultimately direct a long-lasting physiological response in offspring? MAJOR CONCLUSIONS Several potential mechanisms exist by which transient epigenetic modifications, such as small RNAs or methylation states erased shortly after fertilization, could be transferred to more durable heritable information. A detailed mechanistic understanding of this process will provide deep insights into early development, and could be of great relevance for human health and disease.
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Affiliation(s)
- Carolina Galan
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Marina Krykbaeva
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Oliver J Rando
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, 01605, USA.
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14
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Chen Z, Miao F, Braffett BH, Lachin JM, Zhang L, Wu X, Roshandel D, Carless M, Li XA, Tompkins JD, Kaddis JS, Riggs AD, Paterson AD, Natarajan R. DNA methylation mediates development of HbA1c-associated complications in type 1 diabetes. Nat Metab 2020; 2:744-762. [PMID: 32694834 PMCID: PMC7590966 DOI: 10.1038/s42255-020-0231-8] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 05/29/2020] [Indexed: 01/09/2023]
Abstract
Metabolic memory, the persistent benefits of early glycaemic control on preventing and/or delaying the development of diabetic complications, has been observed in the Diabetes Control and Complications Trial (DCCT) and in the Epidemiology of Diabetes Interventions and Complications (EDIC) follow-up study, but the underlying mechanisms remain unclear. Here, we show the involvement of epigenetic DNA methylation (DNAme) in metabolic memory by examining its associations with preceding glycaemic history, and with subsequent development of complications over an 18-yr period in the blood DNA of 499 randomly selected DCCT participants with type 1 diabetes who are also followed up in EDIC. We demonstrate the associations between DNAme near the closeout of DCCT and mean HbA1c during DCCT (mean-DCCT HbA1c) at 186 cytosine-guanine dinucleotides (CpGs) (FDR < 15%, including 43 at FDR < 5%), many of which were located in genes related to complications. Exploration studies into biological function reveal that these CpGs are enriched in binding sites for the C/EBP transcription factor, as well as enhancer/transcription regions in blood cells and haematopoietic stem cells, and open chromatin states in myeloid cells. Mediation analyses show that, remarkably, several CpGs in combination explain 68-97% of the association of mean-DCCT HbA1c with the risk of complications during EDIC. In summary, DNAme at key CpGs appears to mediate the association between hyperglycaemia and complications in metabolic memory, through modifying enhancer activity at myeloid and other cells.
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Affiliation(s)
- Zhuo Chen
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Feng Miao
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Barbara H Braffett
- The Biostatistics Center, The George Washington University, Rockville, MD, USA
| | - John M Lachin
- The Biostatistics Center, The George Washington University, Rockville, MD, USA
| | - Lingxiao Zhang
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Xiwei Wu
- Integrative Genomics Core, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Delnaz Roshandel
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Melanie Carless
- Department of Biology, University of Texas at San Antonio, San Antonio, TX, USA
| | - Xuejun Arthur Li
- Biostatistics Core, Department of Computational and Quantitative Medicine, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Joshua D Tompkins
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - John S Kaddis
- Department of Diabetes Immunology, Diabetes and Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA
- Department of Diabetes and Cancer Discovery Science, Diabetes and Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Arthur D Riggs
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA
| | - Andrew D Paterson
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Rama Natarajan
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA.
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15
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Chen X, Lin Q, Wen J, Lin W, Liang J, Huang H, Li L, Huang J, Chen F, Liu D, Chen G. Whole genome bisulfite sequencing of human spermatozoa reveals differentially methylated patterns from type 2 diabetic patients. J Diabetes Investig 2020; 11:856-864. [PMID: 31869513 PMCID: PMC7378413 DOI: 10.1111/jdi.13201] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 12/15/2019] [Accepted: 12/19/2019] [Indexed: 12/14/2022] Open
Abstract
AIMS/INTRODUCTION The incidence of type 2 diabetes mellitus is increasing worldwide, and it might partly cause metabolic disorder and type 2 diabetes mellitus susceptibility in patients' offspring through epigenetic modification. However, the underlying mechanisms remain largely unclear. Recent studies have shown a potential link between deoxyribonucleic acid methylation in paternal sperm and susceptibility to type 2 diabetes mellitus in offspring, so this article focuses on whether the whole-genome methylation profiles of spermatozoa in type 2 diabetes mellitus patients have changed. MATERIALS AND METHODS We investigated the genome-wide deoxyribonucleic acid methylation profiles in spermatozoa by comparing eight individuals with type 2 diabetes mellitus and nine non-diabetic controls using whole-genome bisulfite sequencing method. RESULTS First, we found that the proportion of methylated cytosine in the whole genome of the type 2 diabetes mellitus group was slightly lower than that of the control group. Interestingly, the proportion of methylated cytosines in the CG context decreased, and the proportion of methylated cytosines in the CHG context (H = A, T or C) increased in the type 2 diabetes mellitus group, but the proportion of methylated cytosines in the CHH context (H = A, T or C) barely changed. The methylated cytosines in the CG context were mainly distributed at the high methylated level, whereas methylated cytosines in the CHG context and methylated cytosines in the CHH context were mainly distributed at the low and middle methylated level in both groups. Second, functional enrichment analysis showed that differentially methylated genes played a significant role in nervous system development and cell metabolism. Finally, we identified 10 top type 2 diabetes mellitus-related differentially methylated genes, including IRS1, PRKCE, FTO, PPARGC1A, KCNQ1, ATP10A, GHR, CREB1, PRKAR1A and HNF1B. CONCLUSIONS Our study provides the first evidence for deoxyribonucleic acid methylation reprogramming in spermatozoa of type 2 diabetes mellitus patients, and provides a new basis for explaining the complex mechanism of type 2 diabetes mellitus susceptibility in offspring.
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Affiliation(s)
- Xiongfeng Chen
- Department of Scientific ResearchFujian Provincial HospitalFuzhouFujianChina
| | - Qinghua Lin
- Department of Scientific ResearchFujian Academy of Medical SciencesFuzhouFujianChina
| | - Junping Wen
- Department of Endocrinology and MetabolismFujian Provincial HospitalShengli Clinical Medical College of Fujian Medical UniversityFuzhouFujianChina
| | - Wei Lin
- Department of Endocrinology and MetabolismFujian Provincial HospitalShengli Clinical Medical College of Fujian Medical UniversityFuzhouFujianChina
| | - Jixing Liang
- Department of Endocrinology and MetabolismFujian Provincial HospitalShengli Clinical Medical College of Fujian Medical UniversityFuzhouFujianChina
| | - Huibin Huang
- Department of Endocrinology and MetabolismFujian Provincial HospitalShengli Clinical Medical College of Fujian Medical UniversityFuzhouFujianChina
| | - Liantao Li
- Department of Endocrinology and MetabolismFujian Provincial HospitalShengli Clinical Medical College of Fujian Medical UniversityFuzhouFujianChina
| | - Jianxin Huang
- Department of Clinical LaboratoryFujian Provincial HospitalFuzhouFujianChina
| | - Falin Chen
- Department of Clinical LaboratoryFujian Provincial HospitalFuzhouFujianChina
| | - Deli Liu
- HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational BiomedicineNew York CityNew YorkUSA
| | - Gang Chen
- Department of Scientific ResearchFujian Academy of Medical SciencesFuzhouFujianChina
- Department of Endocrinology and MetabolismFujian Provincial HospitalShengli Clinical Medical College of Fujian Medical UniversityFuzhouFujianChina
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16
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Kato M, Natarajan R. Epigenetics and epigenomics in diabetic kidney disease and metabolic memory. Nat Rev Nephrol 2020; 15:327-345. [PMID: 30894700 DOI: 10.1038/s41581-019-0135-6] [Citation(s) in RCA: 292] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The development and progression of diabetic kidney disease (DKD), a highly prevalent complication of diabetes mellitus, are influenced by both genetic and environmental factors. DKD is an important contributor to the morbidity of patients with diabetes mellitus, indicating a clear need for an improved understanding of disease aetiology to inform the development of more efficacious treatments. DKD is characterized by an accumulation of extracellular matrix, hypertrophy and fibrosis in kidney glomerular and tubular cells. Increasing evidence shows that genes associated with these features of DKD are regulated not only by classical signalling pathways but also by epigenetic mechanisms involving chromatin histone modifications, DNA methylation and non-coding RNAs. These mechanisms can respond to changes in the environment and, importantly, might mediate the persistent long-term expression of DKD-related genes and phenotypes induced by prior glycaemic exposure despite subsequent glycaemic control, a phenomenon called metabolic memory. Detection of epigenetic events during the early stages of DKD could be valuable for timely diagnosis and prompt treatment to prevent progression to end-stage renal disease. Identification of epigenetic signatures of DKD via epigenome-wide association studies might also inform precision medicine approaches. Here, we highlight the emerging role of epigenetics and epigenomics in DKD and the translational potential of candidate epigenetic factors and non-coding RNAs as biomarkers and drug targets for DKD.
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Affiliation(s)
- Mitsuo Kato
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA.
| | - Rama Natarajan
- Department of Diabetes Complications and Metabolism, Diabetes Metabolism Research Institute, Beckman Research Institute of City of Hope, Duarte, CA, USA.
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17
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Yan S, Hou W, Wu H, Jiang W, Li Y, Zhang Y, Li H, Yang S, Sun C, Han T, Li Y. Prenatal exposure to the Chinese famine and the risk of metabolic syndrome in adulthood across consecutive generations. Eur J Clin Nutr 2020; 74:1229-1236. [DOI: 10.1038/s41430-020-0561-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 12/16/2019] [Accepted: 01/14/2020] [Indexed: 12/26/2022]
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18
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Mudersbach T, Siuda D, Kohlstedt K, Fleming I. Epigenetic control of the angiotensin-converting enzyme in endothelial cells during inflammation. PLoS One 2019; 14:e0216218. [PMID: 31042763 PMCID: PMC6494048 DOI: 10.1371/journal.pone.0216218] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 04/15/2019] [Indexed: 11/18/2022] Open
Abstract
The angiotensin-converting enzyme (ACE) plays a central role in the renin-angiotensin system, which is involved in the regulation of blood pressure. Alterations in ACE expression or activity are associated with various pathological phenotypes, particularly cardiovascular diseases. In human endothelial cells, ACE was shown to be negatively regulated by tumor necrosis factor (TNF) α. To examine, whether or not, epigenetic factors were involved in ACE expression regulation, methylated DNA immunoprecipitation and RNA interference experiments directed against regulators of DNA methylation homeostasis i.e., DNA methyltransferases (DNMTs) and ten-eleven translocation methylcytosine dioxygenases (TETs), were performed. TNFα stimulation enhanced DNA methylation in two distinct regions within the ACE promoter via a mechanism linked to DNMT3a and DNMT3b, but not to DNMT1. At the same time, TET1 protein expression was downregulated. In addition, DNA methylation decreased the binding affinity of the transcription factor MYC associated factor X to the ACE promoter. In conclusion, DNA methylation determines the TNFα-dependent regulation of ACE gene transcription and thus protein expression in human endothelial cells.
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Affiliation(s)
- Thomas Mudersbach
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
- German Centre for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany
| | - Daniel Siuda
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
- German Centre for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany
| | - Karin Kohlstedt
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
| | - Ingrid Fleming
- Institute for Vascular Signalling, Centre for Molecular Medicine, Goethe University, Frankfurt am Main, Germany
- German Centre for Cardiovascular Research (DZHK), Partner site Rhein-Main, Frankfurt am Main, Germany
- * E-mail:
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19
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Maternal dietary calcium status during pregnancy and lactation affects brain DHA accretion through modifying DNA methylation of fatty acid desaturases in the mouse offspring. Nutr Res 2019; 65:29-42. [PMID: 30954344 DOI: 10.1016/j.nutres.2019.01.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 01/19/2019] [Accepted: 01/23/2019] [Indexed: 01/25/2023]
Abstract
Disturbed calcium homeostasis has detrimental effects on brain development and function, particularly in early life because of epigenetic determination of early nutrition on later health. We hypothesized that the imbalance of calcium status in early life might have long-lasting effects on brain DHA accretion though epigenetic modification on fatty acid desaturases (Fads). Three to four week old C57BL/6J female mice were fed 3 reproductive diets with different calcium concentrations - low (LC, 0.25%), normal (NC, 0.70%) and high-calcium (HC, 1.20%) respectively throughout pregnancy and lactation. Maternal LC diet reduced tissue (brain and hepatic) DHA concentrations in both male and female offsprings at postnatal 21 day, with reductions in male instead of female offsprings in adulthood. Maternal HC diet only reduced hepatic DHA concentration in adult male offsprings. Furthermore, maternal LC diet reduced hepatic but increased brain expressions of Fads1 or Fads2 in 21-days old offsprings, with similar changes in adult male instead of female offsprings. Maternal HC diet reduced hepatic or brain expressions of Fads1 or Fads2 in 21-days old offsprings, and only reduced Fads2 in the liver with adult male offsprings. Determination of DNA methylation (CpG4, CpG5, CpG7,8, CpG14-17 and CpG19) showed that maternal LC diet caused hypermethylation of Fads2 promoter in the liver and hypomethylation in the brain in 21-days old offsprings, as well as in adult male offsprings. These data demonstrate that the imbalance of calcium intake in early life might have long-term gender-specific effects on brain accretion of DHA mediated by altered DNA methylation and associated expressions of Fads.
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20
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Gao M, Deng XL, Liu ZH, Song HJ, Zheng J, Cui ZH, Xiao KL, Chen LL, Li HQ. Liraglutide protects β-cell function by reversing histone modification of Pdx-1 proximal promoter in catch-up growth male rats. J Diabetes Complications 2018; 32:985-994. [PMID: 30177467 DOI: 10.1016/j.jdiacomp.2018.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 07/17/2018] [Accepted: 08/01/2018] [Indexed: 01/08/2023]
Abstract
AIMS Catch-up growth after a period of nutritional deprivation in adulthood is related to the onset of metabolic disorders. This process involves chromatin remodelling of the Pdx-1 gene in pancreas. The objective of this study was to determine the chromatin remodelling mechanism of GLP-1 analogue Liraglutide upon Pdx-1 in catch-up growth rats in vivo and in vitro. METHODS Five-week-old male specific pathogen free (SPF) Wistar rats were randomly divided into normal group, catch-up growth group and Liraglutide group. Hyperglycemic clamp test and glucose-stimulated insulin secretion test were carried out to evaluate β-cell function in vivo and in vitro. The histone H3 modification changes at the Pdx-1 proximal promoter were assessed by chromatin immunoprecipitation. RESULTS The catch-up growth state was characterized by less recruitment of histone H3 lysine4 trimethylation and histone H3 acetylation and more recruitment of histone H3 lysine9 dimethylation at the Pdx-1 proximal promoter. Liraglutide treatment reversed these epigenetic changes and increased Pdx-1 expression, which could be abrogated by GLP-1 receptor antagonist Exendin 9-39. The β-cell function of catch-up growth rats was improved after Liraglutide treatment. CONCLUSIONS The protective effects of Liraglutide on pancreatic islet β-cell function may be related to histone H3 modification at the Pdx-1 proximal promoter during catch-up growth and could be used to treat catch-up growth-related metabolic disorders.
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Affiliation(s)
- Ming Gao
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China; Department of Endocrinology, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei, China
| | - Xiu-Ling Deng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Zhen-Hua Liu
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Hui-Jie Song
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China; Department of Endocrinology, Wuhan No.1 Hospital, Wuhan 430022, Hubei, China
| | - Juan Zheng
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Zhen-Hai Cui
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Kang-Li Xiao
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Lu-Lu Chen
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China
| | - Hui-Qing Li
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei, China.
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21
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Fathi Dizaji B. The investigations of genetic determinants of the metabolic syndrome. Diabetes Metab Syndr 2018; 12:783-789. [PMID: 29673926 DOI: 10.1016/j.dsx.2018.04.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 04/09/2018] [Indexed: 11/17/2022]
Abstract
Metabolic syndrome is the aggregation of cardiovascular risk factors that increases the risk of type 2 diabetes and cardiovascular diseases. Family and twin studies, heritability spectrum for its components and different prevalence among ethnicities, have provided genetic susceptibility to the metabolic syndrome. The investigations of genetic base for the disorder have recognized numerous chromosomes, various DNA polymorphisms in candidate genes and many gene variants, that are associated with metabolic syndrome as an entity or its traits, which mostly are related to lipid metabolism. In addition, recent finding of the role of rare variants, epigenetic mechanisms, non-coding RNAs and evaluating the function of genes in molecular networks have improved our knowledge. However, a common genetic basis explaining the co-occurrence of its components has not been identified and more researches are essential.
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Affiliation(s)
- Behdokht Fathi Dizaji
- Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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22
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Wadhwani N, Patil V, Joshi S. Maternal long chain polyunsaturated fatty acid status and pregnancy complications. Prostaglandins Leukot Essent Fatty Acids 2018; 136:143-152. [PMID: 28888333 DOI: 10.1016/j.plefa.2017.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 07/06/2017] [Accepted: 08/09/2017] [Indexed: 12/18/2022]
Abstract
Maternal nutrition plays a crucial role in influencing fetal growth and birth outcome. Any nutritional insult starting several weeks before pregnancy and during critical periods of gestation is known to influence fetal development and increase the risk for diseases during later life. Literature suggests that chronic adult diseases may have their origin during early life - a concept referred to as Developmental Origins of Health and Disease (DOHaD) which states that adverse exposures early in life "program" risks for later chronic disorders. Long chain polyunsaturated fatty acids (LCPUFA), mainly omega-6 and omega-3 fatty acids are known to have an effect on fetal programming. The placental supply of optimal levels of LCPUFA to the fetus during early life is extremely important for the normal growth and development of both placenta and fetus. Any alteration in placental development will result in adverse pregnancy outcome such as gestational diabetes mellitus (GDM), preeclampsia, and intrauterine growth restriction (IUGR). A disturbed materno-fetal LCPUFA supply is known to be linked with each of these pathologies. Further, a disturbed LCPUFA metabolism is reported to be associated with a number of metabolic disorders. It is likely that LCPUFA supplementation during early pregnancy may be beneficial in improving the health of the mother, improving birth outcome and thereby reducing the risk of diseases in later life.
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Affiliation(s)
- Nisha Wadhwani
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune Satara Road, Pune 411043, India
| | - Vidya Patil
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune Satara Road, Pune 411043, India
| | - Sadhana Joshi
- Department of Nutritional Medicine, Interactive Research School for Health Affairs, Bharati Vidyapeeth University, Pune Satara Road, Pune 411043, India.
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Nutrition in the First 1000 Days: Ten Practices to Minimize Obesity Emerging from Published Science. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 14:ijerph14121491. [PMID: 29194402 PMCID: PMC5750909 DOI: 10.3390/ijerph14121491] [Citation(s) in RCA: 90] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/24/2017] [Accepted: 11/24/2017] [Indexed: 12/12/2022]
Abstract
The prevalence of childhood overweight and obesity has increased in most countries the last decades. Considering this in a simplistic way, we can say that obesity is the result of an imbalance between energy intake and energy expenditure. Moreover, the environment from conception to childhood could influence the child's future health. The first 1000 days of life start with woman's pregnancy, and offer a unique window of opportunity to contribute to obesity prevention. In light of the actual literature, the aim of our article is to discuss a proposal of 10 good practices to minimize obesity in the first 1000 days emerging from published science. (1) Both the mother's and the father's behaviors are important. A balanced diet with appropriate fat and protein intake, and favoring fruits and vegetables, is recommended for both parents during the conception period and pregnancy. Furthermore, overweight/obese women who are planning to become pregnant should reduce their weight before conception. (2) During pregnancy, at birth, and during early life, body composition measurements are crucial to monitor the baby's growth. (3) Exclusive breastfeeding is recommended at the beginning of life until six months of age. (4) Four to six months of age is the optimal window to introduce complementary feeding. Until one year of age, breast milk or follow-on/commercial formula is the main recommended feeding source, and cow's milk should be avoided until one year of age. (5) Fruit and vegetable introduction should begin early. Daily variety, diversity in a meal, and repeated exposure to the food, up to eight times, are efficient strategies to increase acceptance of food not well accepted at first. There is no need to add sugar, salt, or sugary fluids to the diet. (6) Respect the child's appetite and avoid coercive "clean your plate" feeding practices. Adapt the portion of food and don't use food as reward for good behavior. (7) Limit animal protein intake in early life to reduce the risk of an early adiposity rebound. Growing-up milk for children between one and three years of age should be preferred to cow's milk, in order to limit intake and meet essential fatty acid and iron needs. (8) The intake of adequate fat containing essential fatty acids should be promoted. (9) Parents should be role models when feeding, with TV and other screens turned-off during meals. (10) Preventive interventions consisting of promoting physical activity and sufficient time dedicated to sleep should be employed. In fact, short sleep duration may be associated with increased risk of developing obesity. Based on literature reviews, and given the suggestions described in this manuscript, concerted public health efforts are needed to achieve the healthy objectives for obesity and nutrition, and to fight the childhood obesity epidemic.
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Lee A, Newton M, Radcliffe J, Belski R. Pregnancy nutrition knowledge and experiences of pregnant women and antenatal care clinicians: A mixed methods approach. Women Birth 2017; 31:269-277. [PMID: 29126796 DOI: 10.1016/j.wombi.2017.10.010] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 09/29/2017] [Accepted: 10/25/2017] [Indexed: 11/29/2022]
Abstract
BACKGROUND Dietary intake of pregnant women do not appear to meet the dietary recommendations. Nutrition knowledge and practices of pregnant women and their antenatal care clinicians are factors that may be influential on dietary intakes of pregnant women. AIM To assess and compare pregnancy nutrition recommendation knowledge and to explore how nutrition knowledge impacts on food choices in pregnant women and nutrition education practices of antenatal care providers. METHODS An explanatory sequential research mixed methods study design was applied. All participants were recruited from a metropolitan maternity hospital in Melbourne, Australia. The first phase assessed pregnancy nutrition knowledge and sources of nutrition information using a questionnaire (n=202) then followed semi-structured interviews with women and clinicians (n=31). FINDINGS The clinicians obtained significantly higher nutrition scores than compared to women, however, nutrition knowledge gaps were highlighted for both women and clinicians. Women reported receiving limited nutrition advice, a reflection of the clinicians reporting they provided limited nutrition advice. CONCLUSION A key challenge for women adhering to dietary recommendations was having inadequate knowledge of the dietary recommendations and receiving limited information from their care providers. Similarly, as well as time constraints, limited nutrition knowledge and a lack of nutrition training impacted on the capacity of clinicians to provide adequate nutrition education.
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Affiliation(s)
- Amelia Lee
- Nutrition Department, Royal Women's Hospital, Parkville, Victoria 3052, Australia; School of Allied Health, La Trobe University, Bundoora, Victoria 3086, Australia.
| | - Michelle Newton
- School of Nursing and Midwifery, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Jessica Radcliffe
- School of Allied Health, La Trobe University, Bundoora, Victoria 3086, Australia
| | - Regina Belski
- School of Allied Health, La Trobe University, Bundoora, Victoria 3086, Australia
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Zhu Y, Liao X, Lu L, Li W, Zhang L, Ji C, Lin X, Liu HC, Odle J, Luo X. Maternal dietary zinc supplementation enhances the epigenetic-activated antioxidant ability of chick embryos from maternal normal and high temperatures. Oncotarget 2017; 8:19814-19824. [PMID: 28177898 PMCID: PMC5386724 DOI: 10.18632/oncotarget.15057] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 12/20/2016] [Indexed: 11/29/2022] Open
Abstract
The role of maternal dietary zinc supplementation in protecting the embryos from maternal hyperthermia-induced negative effects via epigenetic mechanisms was examined using an avian model (Gallus gallus). Broiler breeder hens were exposed to two maternal temperatures (21°C and 32°C) × three maternal dietary zinc treatments (zinc-unsupplemented control diet, the control diet + 110 mg zinc/kg inorganic or organic zinc) for 8 weeks. Maternal hyperthermia increased the embryonic mortality and induced oxidative damage evidenced by the elevated mRNA expressions of heat shock protein genes. Maternal dietary zinc deficiency damaged the embryonic development associated with the global DNA hypomethylation and histone 3 lysine 9 hyperacetylation in the embryonic liver. Supplementation of zinc in maternal diets effectively eliminated the embryonic mortality induced by maternal hyperthermia and enhanced antioxidant ability with the increased mRNA and protein expressions of metallothionein IV in the embryonic liver. The increased metallothionein IV mRNA expression was due to the reduced DNA methylation and increased histone 3 lysine 9 acetylation of the metallothionein IV promoter regardless of zinc source. These data demonstrate that maternal dietary zinc addition as an epigenetic modifier could protect the offspring embryonic development against maternal heat stress via enhancing the epigenetic-activated antioxidant ability.
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Affiliation(s)
- Yongwen Zhu
- Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China.,College of Animal Science, South China Agricultural University, Guangzhou 510000, P. R. China.,College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - Xiudong Liao
- Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Lin Lu
- Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Wenxiang Li
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - Liyang Zhang
- Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
| | - Cheng Ji
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, P. R. China
| | - Xi Lin
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Hsiao-Ching Liu
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Jack Odle
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Xugang Luo
- Mineral Nutrition Research Division, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, P. R. China
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García-Escobar E, Monastero R, García-Serrano S, Gómez-Zumaquero JM, Lago-Sampedro A, Rubio-Martín E, Colomo N, Rodríguez-Pacheco F, Soriguer F, Rojo-Martínez G. Dietary fatty acids modulate adipocyte TNFa production via regulation of its DNA promoter methylation levels. J Nutr Biochem 2017; 47:106-112. [PMID: 28575756 DOI: 10.1016/j.jnutbio.2017.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 04/24/2017] [Accepted: 05/16/2017] [Indexed: 12/17/2022]
Abstract
The factors regulating TNF alpha (TNFa) levels could be considered therapeutic targets against metabolic syndrome development. DNA methylation is a potent regulator of gene expression and may be associated with protein levels. In this study we investigate whether the effect of dietary fatty acids on TNFa released from adipocytes might be associated with modifications of the TNFa promoter DNA methylation status. A group of rats was assigned to three diets with a different composition of saturated, monounsaturated and polyunsaturated fatty acids. Samples of visceral adipose tissues were taken for adipocyte isolation, in which released TNFa levels were measured, and for methylation and expression studies. In addition, 3 T3-L1 cells were treated with palmitic, oleic and linoleic acids, with and without 5-Azacitydine (5-AZA). After treatments, cells and supernatants were included in the same analyses as rat samples. TNFa promoter methylation levels, gene expression and secretion were different according to the diets and fatty acid treatments associated with them. Cells treated with 5-AZA displayed higher TNFa levels than in the absence of 5-AZA, without differences between fatty acids. According to our results, dietary fatty acid regulation of adipocyte TNFa levels may be mediated by epigenetic modifications of the TNFa promoter DNA methylation levels.
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Affiliation(s)
- Eva García-Escobar
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain; CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain.
| | - Roberto Monastero
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain
| | - Sara García-Serrano
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain; CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain
| | - Juan M Gómez-Zumaquero
- CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain; ECAI de Genomica del Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Ana Lago-Sampedro
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain; CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain
| | - Elehazara Rubio-Martín
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain; CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain
| | - Natalia Colomo
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain; CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain
| | - Francisca Rodríguez-Pacheco
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain
| | - Federico Soriguer
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain; CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain
| | - Gemma Rojo-Martínez
- UGC Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Malaga, Malaga, Spain; CIBER of the Instituto de Salud Carlos III (CIBERDEM CB07/08/0019), Málaga, Spain
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Vallaster MP, Kukreja S, Bing XY, Ngolab J, Zhao-Shea R, Gardner PD, Tapper AR, Rando OJ. Paternal nicotine exposure alters hepatic xenobiotic metabolism in offspring. eLife 2017; 6. [PMID: 28196335 PMCID: PMC5340528 DOI: 10.7554/elife.24771] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 01/31/2017] [Indexed: 12/30/2022] Open
Abstract
Paternal environmental conditions can influence phenotypes in future generations, but it is unclear whether offspring phenotypes represent specific responses to particular aspects of the paternal exposure history, or a generic response to paternal ‘quality of life’. Here, we establish a paternal effect model based on nicotine exposure in mice, enabling pharmacological interrogation of the specificity of the offspring response. Paternal exposure to nicotine prior to reproduction induced a broad protective response to multiple xenobiotics in male offspring. This effect manifested as increased survival following injection of toxic levels of either nicotine or cocaine, accompanied by hepatic upregulation of xenobiotic processing genes, and enhanced drug clearance. Surprisingly, this protective effect could also be induced by a nicotinic receptor antagonist, suggesting that xenobiotic exposure, rather than nicotinic receptor signaling, is responsible for programming offspring drug resistance. Thus, paternal drug exposure induces a protective phenotype in offspring by enhancing metabolic tolerance to xenobiotics. DOI:http://dx.doi.org/10.7554/eLife.24771.001 Until recently, it seemed impossible that the conditions a person or animal experiences during their lifetime might affect the health of their offspring and future generations. Research over the past decade, however, has shown that a parent’s environment can cause changes that can be passed to future generations. For example, studies in rodents have shown that a father’s diet influences the way their offspring metabolize food. Moreover, a male mouse exposed to stress or toxins fathers pups that often respond differently in stressful situations relative to other mice. So, how do these traits get transferred to offspring via sperm and how specific is the next generation’s response to the environmental pressures faced by their fathers? Many studies so far have looked at environmental influences that may have broad biological effects, for example a high fat diet. Now, some scientists are trying to understand whether exposure to nicotine, which has a more targeted effect, causes drug-specific effects in offspring. Vallaster et al. now show that mice whose fathers had been exposed to nicotine before mating are more able to withstand toxic levels of the chemical than mice whose fathers were never exposed to the drug. In the experiments, some male mice were given water with nicotine in it over the course of five weeks. Later, the offspring of these mice were exposed to nicotine to see whether they were more or less sensitive to it than offspring of unexposed males. It turns out the mice with nicotine-exposed fathers have a higher resistance to the toxic effects of nicotine and, unexpectedly, to toxic levels of cocaine as well. This suggests that the pups of nicotine-exposed fathers are not specifically programmed to respond to nicotine, but instead are more resistant to toxins in general. Vallaster et al. found that the livers of the offspring of nicotine-exposed fathers appear to be better able to metabolize both drugs. Exposing the fathers to another drug called mecamylamine (which can prevent many of nicotine’s effects on the body) also made their offspring more resistant to nicotine, showing that multiple drugs may make offspring more toxin-resistant. Studies in humans will be needed to confirm whether a father’s nicotine use affects children the same way it does mice. Similar mice studies also may help scientists to study how other types of environmental exposure might affect a man’s future children. DOI:http://dx.doi.org/10.7554/eLife.24771.002
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Affiliation(s)
- Markus P Vallaster
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
| | - Shweta Kukreja
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
| | - Xin Y Bing
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
| | - Jennifer Ngolab
- Brudnick Neuropsychiatric Research Institute, Department of Psychiatry, University of Massachusetts Medical School, Worcester, United States.,Department of Psychiatry, University of Massachusetts Medical School, Worcester, United States
| | - Rubing Zhao-Shea
- Brudnick Neuropsychiatric Research Institute, Department of Psychiatry, University of Massachusetts Medical School, Worcester, United States.,Department of Psychiatry, University of Massachusetts Medical School, Worcester, United States
| | - Paul D Gardner
- Brudnick Neuropsychiatric Research Institute, Department of Psychiatry, University of Massachusetts Medical School, Worcester, United States.,Department of Psychiatry, University of Massachusetts Medical School, Worcester, United States
| | - Andrew R Tapper
- Brudnick Neuropsychiatric Research Institute, Department of Psychiatry, University of Massachusetts Medical School, Worcester, United States
| | - Oliver J Rando
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, United States
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Nutrition in the First 1000 Days: The Origin of Childhood Obesity. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2016; 13:ijerph13090838. [PMID: 27563917 PMCID: PMC5036671 DOI: 10.3390/ijerph13090838] [Citation(s) in RCA: 139] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 08/12/2016] [Accepted: 08/18/2016] [Indexed: 12/13/2022]
Abstract
Childhood obesity is a major global issue. Its incidence is constantly increasing, thereby offering a threatening public health perspective. The risk of developing the numerous chronic diseases associated with this condition from very early in life is significant. Although complex and multi-factorial, the pathophysiology of obesity recognizes essential roles of nutritional and metabolic aspects. Particularly, several risk factors identified as possible determinants of later-life obesity act within the first 1000 days of life (i.e., from conception to age 2 years). The purpose of this manuscript is to review those key mechanisms for which a role in predisposing children to obesity is supported by the most recent literature. Throughout the development of the human feeding environment, three different stages have been identified: (1) the prenatal period; (2) breast vs. formula feeding; and (3) complementary diet. A deep understanding of the specific nutritional challenges presented within each phase might foster the development of future preventive strategies.
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29
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Monastero R, García-Serrano S, Lago-Sampedro A, Rodríguez-Pacheco F, Colomo N, Morcillo S, Martín-Nuñez GM, Gomez-Zumaquero JM, García-Fuentes E, Soriguer F, Rojo-Martínez G, García-Escobar E. Methylation patterns of Vegfb promoter are associated with gene and protein expression levels: the effects of dietary fatty acids. Eur J Nutr 2015; 56:715-726. [DOI: 10.1007/s00394-015-1115-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 11/22/2015] [Indexed: 12/13/2022]
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Milagro FI, Riezu-Boj JI, Martinez JA. Epigenetic Determinants of Weight Management: Methylation Signatures. Curr Nutr Rep 2015. [DOI: 10.1007/s13668-015-0140-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
BACKGROUND To examine the contribution of generational epigenetic dysregulation to the inception of obesity and its adiposopathic consequences. METHODS Sources for this review included searches of PubMed, Google Scholar, and international government/major association websites using terms including adiposity, adiposopathy, epigenetics, genetics, and obesity. RESULTS Excessive energy storage in adipose tissue often results in fat cell and fat organ dysfunction, which may cause metabolic and fat mass disorders. The adverse clinical manifestations of obesity are not solely due to the amount of body fat (adiposity), but are also dependent on anatomical and functional perturbations (adiposopathy or 'sick fat'). This review describes extragenetic factors and genetic conditions that promote obesity. It also serves as an introduction to epigenetic dysregulation (i.e., abnormalities in gene expression that occur without alteration in the genetic code itself), which may contribute to obesity and adiposopathic metabolic health outcomes in offspring. Within the epigenetic paradigm, obesity is a transgenerational disease, with weight lost or gained by either parent potentially impacting generational risk for obesity and its complications. CONCLUSIONS Epigenetics may be an important contributor to the emergence of obesity and its complications as global epidemics. Although transgenerational epigenetic influences present challenges, they may also present interventional opportunities, via justifying weight management for individuals before, during, and after pregnancy and for future generations.
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Affiliation(s)
- Harold Bays
- a a Louisville Metabolic and Atherosclerosis Research Center (L-MARC) , Louisville , KY , USA
| | - Wendy Scinta
- b b Medical Weight Loss of NY , Fayetteville , NY , USA
- c c State University of New York , Upstate Department of Family Medicine , Syracuse , NY , USA
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Mother's nutritional miRNA legacy: Nutrition during pregnancy and its possible implications to develop cardiometabolic disease in later life. Pharmacol Res 2015; 100:322-34. [PMID: 26325301 DOI: 10.1016/j.phrs.2015.08.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 08/18/2015] [Accepted: 08/19/2015] [Indexed: 01/02/2023]
Abstract
Maternal nutrition during pregnancy and lactation influences the offspring's health in the long-term. Indeed, human epidemiological studies and animal model experiments suggest that either an excess or a deficit in maternal nutrition influence offspring development and susceptibility to metabolic disorders. Different epigenetic mechanisms may explain in part the way by which dietary factors in early critical developmental steps might be able to affect the susceptibility to develop metabolic diseases in adulthood. microRNAs are versatile regulators of gene expression and play a major role during tissue homeostasis and disease. Dietary factors have also been shown to modify microRNA expression. However, the role of microRNAs in fetal programming remains largely unstudied. This review evaluates in vivo studies conducted to analyze the effect of maternal diet on the modulation of the microRNA expression in the offspring and their influence to develop metabolic and cardiovascular disease in later life. In overall, the available evidence suggests that nutritional status during pregnancy influence offspring susceptibility to the development of cardiometabolic risk factors, partly through microRNA action. Thus, therapeutic modulation of microRNAs can open up new strategies to combat - later in life - the effects of nutritional insult during critical points of development.
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Recent developments in epigenetics of acute and chronic kidney diseases. Kidney Int 2015; 88:250-61. [PMID: 25993323 PMCID: PMC4522401 DOI: 10.1038/ki.2015.148] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/22/2015] [Accepted: 03/30/2015] [Indexed: 12/25/2022]
Abstract
The growing epidemic of obesity and diabetes, the aging population as well as prevalence of drug abuse has led to significant increases in the rates of the closely associated acute and chronic kidney diseases, including diabetic nephropathy. Furthermore, evidence shows that parental behavior and diet can affect the phenotype of subsequent generations via epigenetic transmission mechanisms. These data suggest a strong influence of the environment on disease susceptibility and that, apart from genetic susceptibility, epigenetic mechanisms need to be evaluated to gain critical new information about kidney diseases. Epigenetics is the study of processes that control gene expression and phenotype without alterations in the underlying DNA sequence. Epigenetic modifications, including cytosine DNA methylation and covalent post translational modifications of histones in chromatin are part of the epigenome, the interface between the stable genome and the variable environment. This dynamic epigenetic layer responds to external environmental cues to influence the expression of genes associated with disease states. The field of epigenetics has seen remarkable growth in the past few years with significant advances in basic biology, contributions to human disease, as well as epigenomics technologies. Further understanding of how the renal cell epigenome is altered by metabolic and other stimuli can yield novel new insights into the pathogenesis of kidney diseases. In this review, we have discussed the current knowledge on the role of epigenetic mechanisms (primarily DNA me and histone modifications) in acute and chronic kidney diseases, and their translational potential to identify much needed new therapies.
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Chang L, Neu J. Early factors leading to later obesity: interactions of the microbiome, epigenome, and nutrition. Curr Probl Pediatr Adolesc Health Care 2015; 45:134-42. [PMID: 26043042 DOI: 10.1016/j.cppeds.2015.03.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 03/02/2015] [Indexed: 12/21/2022]
Abstract
Obesity is a major public health problem in the United States and many other countries. Childhood obesity rates have risen extensively over the last several decades with the numbers continuing to rise. Obese and overweight children are at high risk of becoming overweight adolescents and adults. The causes are multifactorial and are affected by various genetic, behavioral, and environmental factors. This review aims to discuss a previously under-recognized antecedent of obesity and related chronic metabolic diseases such as heart disease and diabetes. Specifically, we highlight the relationship of the microbial ecology of the gastrointestinal tract during early development and the consequent effects on metabolism, epigenetics, and inflammatory responses that can subsequently result in metabolic syndrome. Although studies in this area are just beginning, this area of research is rapidly expanding and may lead to early life interventions that may have significant impacts in the prevention of obesity.
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Affiliation(s)
- Lilly Chang
- Department of Pediatrics, University of Florida, Gainesville, FL
| | - Josef Neu
- Department of Pediatrics, University of Florida, Gainesville, FL
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35
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Du M, Wang B, Fu X, Yang Q, Zhu MJ. Fetal programming in meat production. Meat Sci 2015; 109:40-7. [PMID: 25953215 DOI: 10.1016/j.meatsci.2015.04.010] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 04/14/2015] [Accepted: 04/16/2015] [Indexed: 12/23/2022]
Abstract
Nutrient fluctuations during the fetal stage affects fetal development, which has long-term impacts on the production efficiency and quality of meat. During the early development, a pool of mesenchymal progenitor cells proliferate and then diverge into either myogenic or adipogenic/fibrogenic lineages. Myogenic progenitor cells further develop into muscle fibers and satellite cells, while adipogenic/fibrogenic lineage cells develop into adipocytes, fibroblasts and resident fibro-adipogenic progenitor cells. Enhancing the proliferation and myogenic commitment of progenitor cells during fetal development enhances muscle growth and lean production in offspring. On the other hand, promoting the adipogenic differentiation of adipogenic/fibrogenic progenitor cells inside the muscle increases intramuscular adipocytes and reduces connective tissue, which improves meat marbling and tenderness. Available studies in mammalian livestock, including cattle, sheep and pigs, clearly show the link between maternal nutrition and the quantity and quality of meat production. Similarly, chicken muscle fibers develop before hatching and, thus, egg and yolk sizes and hatching temperature affect long-term growth performance and meat production of chicken. On the contrary, because fishes are able to generate new muscle fibers lifelong, the impact of early nutrition on fish growth performance is expected to be minor, which requires further studies.
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Affiliation(s)
- Min Du
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States.
| | - Bo Wang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Xing Fu
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Qiyuan Yang
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, United States
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA 99164, United States
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Rönn T, Volkov P, Gillberg L, Kokosar M, Perfilyev A, Jacobsen AL, Jørgensen SW, Brøns C, Jansson PA, Eriksson KF, Pedersen O, Hansen T, Groop L, Stener-Victorin E, Vaag A, Nilsson E, Ling C. Impact of age, BMI and HbA1c levels on the genome-wide DNA methylation and mRNA expression patterns in human adipose tissue and identification of epigenetic biomarkers in blood. Hum Mol Genet 2015; 24:3792-813. [PMID: 25861810 DOI: 10.1093/hmg/ddv124] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/07/2015] [Indexed: 01/03/2023] Open
Abstract
Increased age, BMI and HbA1c levels are risk factors for several non-communicable diseases. However, the impact of these factors on the genome-wide DNA methylation pattern in human adipose tissue remains unknown. We analyzed the DNA methylation of ∼480 000 sites in human adipose tissue from 96 males and 94 females and related methylation to age, BMI and HbA1c. We also compared epigenetic signatures in adipose tissue and blood. Age was significantly associated with both altered DNA methylation and expression of 1050 genes (e.g. FHL2, NOX4 and PLG). Interestingly, many reported epigenetic biomarkers of aging in blood, including ELOVL2, FHL2, KLF14 and GLRA1, also showed significant correlations between adipose tissue DNA methylation and age in our study. The most significant association between age and adipose tissue DNA methylation was found upstream of ELOVL2. We identified 2825 genes (e.g. FTO, ITIH5, CCL18, MTCH2, IRS1 and SPP1) where both DNA methylation and expression correlated with BMI. Methylation at previously reported HIF3A sites correlated significantly with BMI in females only. HbA1c (range 28-46 mmol/mol) correlated significantly with the methylation of 711 sites, annotated to, for example, RAB37, TICAM1 and HLA-DPB1. Pathway analyses demonstrated that methylation levels associated with age and BMI are overrepresented among genes involved in cancer, type 2 diabetes and cardiovascular disease. Our results highlight the impact of age, BMI and HbA1c on epigenetic variation of candidate genes for obesity, type 2 diabetes and cancer in human adipose tissue. Importantly, we demonstrate that epigenetic biomarkers in blood can mirror age-related epigenetic signatures in target tissues for metabolic diseases such as adipose tissue.
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Affiliation(s)
- Tina Rönn
- Department of Clinical Sciences, Epigenetics and Diabetes and
| | - Petr Volkov
- Department of Clinical Sciences, Epigenetics and Diabetes and
| | - Linn Gillberg
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Milana Kokosar
- Department of Physiology/Endocrinology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Medicinaregatan 11, Box 434, 405 30 Gothenburg, Sweden
| | | | - Anna Louisa Jacobsen
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark
| | - Sine W Jørgensen
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark, Steno Diabetes Center, Niels Steensensvej 2, DK-2820 Gentofte, Denmark
| | - Charlotte Brøns
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark
| | - Per-Anders Jansson
- Wallenberg Laboratory, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Karl-Fredrik Eriksson
- Department of Clinical Sciences, Vascular Diseases, Lund University, 205 02 Malmö, Sweden
| | - Oluf Pedersen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Universitetsparken 1, 2100 Copenhagen, Denmark and
| | - Torben Hansen
- The Novo Nordisk Foundation Center for Basic Metabolic Research, Section of Metabolic Genetics, University of Copenhagen, Universitetsparken 1, 2100 Copenhagen, Denmark and
| | - Leif Groop
- Department of Clinical Sciences, Diabetes and Endocrinology, Lund University Diabetes Centre, CRC, 205 02 Malmö, Sweden
| | - Elisabet Stener-Victorin
- Department of Physiology/Endocrinology, Institute of Neuroscience and Physiology, Sahlgrenska Academy, University of Gothenburg, Medicinaregatan 11, Box 434, 405 30 Gothenburg, Sweden, Department of Physiology and Pharmacology, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Allan Vaag
- Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark, Faculty of Health Sciences, University of Copenhagen, Blegdamsvej 3, DK-2200 Copenhagen, Denmark
| | - Emma Nilsson
- Department of Clinical Sciences, Epigenetics and Diabetes and Department of Endocrinology, Rigshospitalet, Tagensvej 20, DK-2200 Copenhagen, Denmark
| | - Charlotte Ling
- Department of Clinical Sciences, Epigenetics and Diabetes and
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Rando OJ, Simmons RA. I'm eating for two: parental dietary effects on offspring metabolism. Cell 2015; 161:93-105. [PMID: 25815988 PMCID: PMC4465102 DOI: 10.1016/j.cell.2015.02.021] [Citation(s) in RCA: 176] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/22/2015] [Accepted: 02/06/2015] [Indexed: 12/18/2022]
Abstract
It has long been understood that the pathogenesis of complex diseases such as diabetes includes both genetic and environmental components. More recently, it has become clear that not only does an individual's environment influence their own metabolism, but in some cases, the environment experienced by their parents may also contribute to their risk of metabolic disease. Here, we review the evidence that parental diet influences metabolic phenotype in offspring in mammals and provide a current survey of our mechanistic understanding of these effects.
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Affiliation(s)
- Oliver J Rando
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.
| | - Rebecca A Simmons
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA.
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Reddy MA, Zhang E, Natarajan R. Epigenetic mechanisms in diabetic complications and metabolic memory. Diabetologia 2015; 58:443-55. [PMID: 25481708 PMCID: PMC4324095 DOI: 10.1007/s00125-014-3462-y] [Citation(s) in RCA: 313] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Accepted: 11/06/2014] [Indexed: 01/15/2023]
Abstract
The incidence of diabetes and its associated micro- and macrovascular complications is greatly increasing worldwide. The most prevalent vascular complications of both type 1 and type 2 diabetes include nephropathy, retinopathy, neuropathy and cardiovascular diseases. Evidence suggests that both genetic and environmental factors are involved in these pathologies. Clinical trials have underscored the beneficial effects of intensive glycaemic control for preventing the progression of complications. Accumulating evidence suggests a key role for epigenetic mechanisms such as DNA methylation, histone post-translational modifications in chromatin, and non-coding RNAs in the complex interplay between genes and the environment. Factors associated with the pathology of diabetic complications, including hyperglycaemia, growth factors, oxidant stress and inflammatory factors can lead to dysregulation of these epigenetic mechanisms to alter the expression of pathological genes in target cells such as endothelial, vascular smooth muscle, retinal and cardiac cells, without changes in the underlying DNA sequence. Furthermore, long-term persistence of these alterations to the epigenome may be a key mechanism underlying the phenomenon of 'metabolic memory' and sustained vascular dysfunction despite attainment of glycaemic control. Current therapies for most diabetic complications have not been fully efficacious, and hence a study of epigenetic mechanisms that may be involved is clearly warranted as they can not only shed novel new insights into the pathology of diabetic complications, but also lead to the identification of much needed new drug targets. In this review, we highlight the emerging role of epigenetics and epigenomics in the vascular complications of diabetes and metabolic memory.
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Affiliation(s)
- Marpadga A Reddy
- Department of Diabetes and Metabolic Diseases Research, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA, 91010, USA
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Consumption of distinct dietary lipids during early pregnancy differentially modulates the expression of microRNAs in mothers and offspring. PLoS One 2015; 10:e0117858. [PMID: 25671565 PMCID: PMC4324823 DOI: 10.1371/journal.pone.0117858] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Accepted: 01/03/2015] [Indexed: 12/04/2022] Open
Abstract
Diet during pregnancy and lactation influences the offspring’s health in the long-term. Indeed, human epidemiological studies and animal experiments suggest that different type of fatty acids consumption during pregnancy affect offspring development and susceptibility to metabolic disorders. Epigenetic changes are thought to be elicited by dietary factors during critical timing of development. microRNAs (miRNAs) are versatile regulators of gene expression. Thus, we aimed to determine the influence of different fatty acids on miRNA expression in offspring when given during early pregnancy. We fed pregnant either soybean (SO), olive (OO), fish (FO), linseed (LO), or palm-oil (PO) diets from conception to day 12 of gestation; and standard diet thereafter. miRNA expression was assessed in liver an adipose tissue of pregnant rats and their virgin counterparts. While liver concentrations of fatty acids in pregnant or virgin rats replicated those of the diets consumed during early pregnancy, their pups’ liver tissue marginally reflected those of the respective experimental feeds. By contrast, the liver fatty acid profile of adult offsprings was similar, regardless of the diet fed during gestation. Different parental miRNAs were modulated by the different type of fatty acid: in adult offspring, miR-215, miR-10b, miR-26, miR-377-3p, miR-21, and miR-192 among others, were differentially modulated by the different fatty acids fed during early pregnancy. Overall, our results show that maternal consumption of different types of fatty acids during early pregnancy influences miRNA expression in both maternal and offspring tissues, which may epigenetically explain the long-term phenotypic changes of the offspring.
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Henning SM, Wang P, Carpenter CL, Heber D. Epigenetic effects of green tea polyphenols in cancer. Epigenomics 2014; 5:729-41. [PMID: 24283885 DOI: 10.2217/epi.13.57] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Epigenetics describes heritable alterations of gene expression and chromatin organization without changes in DNA sequence. Both hypermethylation and hypomethylation of DNA can affect gene expression and the multistep process of carcinogenesis. Epigenetic changes are reversible and may be targeted by dietary interventions. Bioactive compounds from green tea (GT) such as (-)-epigallocatechin gallate have been shown to alter DNA methyltransferase activity in studies of esophageal, oral, skin, Tregs, lung, breast and prostate cancer cells, which may contribute to the chemopreventive effect of GT. Three out of four mouse model studies have confirmed the inhibitory effect of (-)-epigallocatechin gallate on DNA methylation. A human study demonstrated that decreased methylation of CDX2 and BMP-2 in gastric carcinoma was associated with higher GT consumption. It is the goal of this review to summarize our current knowledge of the potential of GT to alter epigenetic processes, which may be useful in chemoprevention.
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Affiliation(s)
- Susanne M Henning
- Center for Human Nutrition, David Geffen School of Medicine, University of California Los Angeles, 900 Veteran Avenue, Warren Hall 14-166, Los Angeles, CA 90095, USA
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Thorens B. Neural regulation of pancreatic islet cell mass and function. Diabetes Obes Metab 2014; 16 Suppl 1:87-95. [PMID: 25200301 DOI: 10.1111/dom.12346] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Accepted: 05/15/2014] [Indexed: 12/24/2022]
Abstract
Intracellular glucose signalling pathways control the secretion of glucagon and insulin by pancreatic islet α- and β-cells, respectively. However, glucose also indirectly controls the secretion of these hormones through regulation of the autonomic nervous system that richly innervates this endocrine organ. Both parasympathetic and sympathetic nervous systems also impact endocrine pancreas postnatal development and plasticity in adult animals. Defects in these autonomic regulations impair β-cell mass expansion during the weaning period and β-cell mass adaptation in adult life. Both branches of the autonomic nervous system also regulate glucagon secretion. In type 2 diabetes, impaired glucose-dependent autonomic activity causes the loss of cephalic and first phases of insulin secretion, and impaired suppression of glucagon secretion in the postabsorptive phase; in diabetic patients treated with insulin, it causes a progressive failure of hypoglycaemia to trigger the secretion of glucagon and other counterregulatory hormones. Therefore, identification of the glucose-sensing cells that control the autonomic innervation of the endocrine pancreatic and insulin and glucagon secretion is an important goal of research. This is required for a better understanding of the physiological control of glucose homeostasis and its deregulation in diabetes. This review will discuss recent advances in this field of investigation.
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Affiliation(s)
- B Thorens
- Center for Integrative Genomics, University of Lausanne, Lausanne, Switzerland
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Epigenetic mechanisms underlying the link between non-alcoholic fatty liver diseases and nutrition. Nutrients 2014; 6:3303-25. [PMID: 25195642 PMCID: PMC4145310 DOI: 10.3390/nu6083303] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 08/06/2014] [Accepted: 08/07/2014] [Indexed: 12/12/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is defined as a pathologic accumulation of fat in the form of triglycerides (TG) in the liver (steatosis) that is not caused by alcohol. A subgroup of NAFLD patients shows liver cell injury and inflammation coupled with the excessive fat accumulation (steatohepatitis), which is referred to as non-alcoholic steatohepatitis (NASH). Patients with NASH may develop cirrhosis and hepatocellular carcinoma (HCC). NAFLD shares the key features of metabolic syndrome including obesity, hyperlipidemia, hypertension, and insulin resistance. The pathogenesis of NAFLD is multi-factorial, however the oxidative stress seems to plays a major role in the development and progression of the disease. The emerging field of epigenetics provides a new perspective on the pathogenesis of NAFLD. Epigenetics is an inheritable but reversible phenomenon that affects gene expression without altering the DNA sequence and refers to DNA methylation, histone modifications and microRNAs. Epigenetic manipulation through metabolic pathways such as one-carbon metabolism has been proposed as a promising approach to retard the progression of NAFLD. Investigating the epigenetic modifiers in NAFLD may also lead to the development of preventive or therapeutic strategies for NASH-associated complications.
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Interplay between polymorphisms and methylation in the H19/IGF2 gene region may contribute to obesity in Mexican-American children. J Dev Orig Health Dis 2014; 4:499-506. [PMID: 24575294 DOI: 10.1017/s204017441300041x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Imprinted genes often affect body size-related traits such as weight. However, the association of imprinting with obesity, especially childhood obesity, has not been well studied. Mexican-American children have a high prevalence, approaching 50%, of obesity and/or overweight. In a pilot study of 75 Mexican-American children, we analyzed the relationships among obese/overweight status, methylation status and single-nucleotide polymorphism (SNP) status at a CpG site in a differentially methylated region (DMR) of the imprinted H19/IGF2 locus. We observed a significant difference in SNP rs10732516 frequency between boys and girls among the overweight and obese children but not among the lean children. We also found that children with lower methylation of the polymorphic CpG site (CpG4) in the H19 DMR had higher birth weights than did children with higher methylation (P = 0.04). Our results suggest that CpG4 methylation status may be associated with childhood obesity in Mexican-American children in a sex-specific manner.
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Abstract
Diabetic nephropathy (DN), a severe microvascular complication frequently associated with both type 1 and type 2 diabetes mellitus, is a leading cause of renal failure. The condition can also lead to accelerated cardiovascular disease and macrovascular complications. Currently available therapies have not been fully efficacious in the treatment of DN, suggesting that further understanding of the molecular mechanisms underlying the pathogenesis of DN is necessary for the improved management of this disease. Although key signal transduction and gene regulation mechanisms have been identified, especially those related to the effects of hyperglycaemia, transforming growth factor β1 and angiotensin II, progress in functional genomics, high-throughput sequencing technology, epigenetics and systems biology approaches have greatly expanded our knowledge and uncovered new molecular mechanisms and factors involved in DN. These mechanisms include DNA methylation, chromatin histone modifications, novel transcripts and functional noncoding RNAs, such as microRNAs and long noncoding RNAs. In this Review, we discuss the significance of these emerging mechanisms, how they mediate the actions of growth factors to augment the expression of extracellular matrix and inflammatory genes associated with DN and their potential usefulness as diagnostic biomarkers or novel therapeutic targets for DN.
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Affiliation(s)
- Mitsuo Kato
- Department of Diabetes, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Rama Natarajan
- Department of Diabetes, Beckman Research Institute of City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
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Maternal diabetes, programming of beta-cell disorders and intergenerational risk of type 2 diabetes. DIABETES & METABOLISM 2014; 40:323-30. [PMID: 24948417 DOI: 10.1016/j.diabet.2014.02.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 01/31/2014] [Accepted: 02/05/2014] [Indexed: 01/01/2023]
Abstract
A substantial body of evidence suggests that an abnormal intra-uterine milieu elicited by maternal metabolic disturbances as diverse as malnutrition, placental insufficiency, diabetes and obesity may be able to programme susceptibility of the foetus to later develop chronic degenerative diseases such as obesity, hypertension, cardiovascular diseases and type 2 diabetes (T2D). As insulin-producing cells have been placed centre stage in the development of T2D, this review examines developmental programming of the beta-cell mass (BCM) in various rodent models of maternal protein restriction, calorie restriction, overnutrition and diabetes. The main message is that whatever the initial maternal insult (F0 generation) and whether alone or in combination, it gives rise to the same programmed BCM outcome in the daughter generation (F1). The altered BCM phenotype in F1 females prohibits normal BCM adaptation during pregnancy and, thus, diabetes (gestational diabetes) ensues. This gestational diabetes is then passed from one generation (F1) to the next (F2, F3 and so on). This review highlights a number of studies that have identified epigenetic mechanisms that may contribute to altered BCM development and beta-cell failure, as observed in diabetes. In addition to their role in instilling the programmed defect, these non-genomic mechanisms may also be involved in its intergenerational transmission.
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Epigenetic modification of the leptin promoter in diet-induced obese mice and the effects of N-3 polyunsaturated fatty acids. Sci Rep 2014; 4:5282. [PMID: 24923522 PMCID: PMC5381469 DOI: 10.1038/srep05282] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Accepted: 05/21/2014] [Indexed: 12/26/2022] Open
Abstract
We report evidence of a detailed epigenetic modification of the leptin promoter and the effects of n-3 polyunsaturated fatty acids (n-3 PUFAs), which is closely associated with the leptin gene transcription in obesity. In the adipose tissue of diet induced obese (DIO) mice, methylation of the CpG island and the binding of methyl-CpG-binding domain protein 2 (MBD2) and DNA methyltransferases (DNMTs) at the leptin promoter are increased and RNA Pol II is decreased. Additionally, histones H3 and H4 are hypoacetylated, lysine 4 of histone H3 (H3K4) is hypomethylated and the binding of histone deacetylases (HDACs) 1, 2 and 6 is increased at the leptin promoter in the DIO mice. These modifications may serve a feedback role to maintain leptin concentrations within a normal range. The regulation of leptin transcriptional expression by n-3 PUFAs is mediated, at least in part, by epigenetic targets, such as MBD2 and histone modifications.
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Brands B, Demmelmair H, Koletzko B. How growth due to infant nutrition influences obesity and later disease risk. Acta Paediatr 2014; 103:578-85. [PMID: 24521522 DOI: 10.1111/apa.12593] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Revised: 01/11/2014] [Accepted: 02/05/2014] [Indexed: 12/23/2022]
Abstract
UNLABELLED Infant nutrition has a major impact on immediate outcomes and long-term health and later disease risks, such as obesity and related disorders, a phenomenon referred to as 'metabolic programming'. This review discusses the currently postulated hypotheses and mechanisms investigated by the EarlyNutrition project. CONCLUSION Rapid weight gain in the first 2 years of life, most notably mediated by diary protein, affects the insulin-like growth factor metabolic pathways. Epigenetic processes seem to play a role.
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Affiliation(s)
- Brigitte Brands
- Dr. von Hauner Children's Hospital; University of Munich Medical Centre; Munich Germany
| | - Hans Demmelmair
- Dr. von Hauner Children's Hospital; University of Munich Medical Centre; Munich Germany
| | - Berthold Koletzko
- Dr. von Hauner Children's Hospital; University of Munich Medical Centre; Munich Germany
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Jacometo CB, Schmitt E, Pfeifer LFM, Schneider A, Bado F, da Rosa FT, Halfen S, Del Pino FAB, Loor JJ, Corrêa MN, Dionello NJL. Linoleic and α-linolenic fatty acid consumption over three generations exert cumulative regulation of hepatic expression of genes related to lipid metabolism. GENES AND NUTRITION 2014; 9:405. [PMID: 24842071 DOI: 10.1007/s12263-014-0405-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 05/05/2014] [Indexed: 12/20/2022]
Abstract
The essential fatty acids, omega-3 and omega-6, consumed during pregnancy can benefit maternal and offspring health. For instance, they could activate a network of genes related to the nuclear receptor peroxisome proliferator-activated receptor α (Ppara) and sterol regulatory element binding transcription factor 1 (Srebf1), which play a role in fatty acid oxidation and lipogenesis. The present study aimed to investigate the effects of diets with different omega-3/omega-6 ratio consumed over three generations on blood biochemical parameters and hepatic expression of Ppara- and Srebf1-related genes. During three consecutive generations adult Wistar rats were evaluated in the postpartum period (21 days after parturition). Regardless of prenatal dietary omega-3/omega-6 ratio, an upregulation in liver tissue was observed for Rxra, Lxra and Srebf1 and a downregulation for Fasn in all the evaluated generations. The diet with higher omega-3/omega-6 ratio decreased triacylglycerol serum levels and resulted in a constant non-esterified fatty acid level. Our results indicated that the PUFAs effect on the modulation of genes related to fatty acid oxidation and lipogenesis is cumulative through generations.
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Affiliation(s)
- Carolina B Jacometo
- Department of Animal Science, Agronomy College, Federal University of Pelotas, Campus Universitário, Pelotas, RS, CEP 96010-900, Brazil,
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Shenderov BA, Midtvedt T. Epigenomic programing: a future way to health? MICROBIAL ECOLOGY IN HEALTH AND DISEASE 2014; 25:24145. [PMID: 24829553 PMCID: PMC4016746 DOI: 10.3402/mehd.v25.24145] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 03/17/2014] [Accepted: 04/01/2014] [Indexed: 12/29/2022]
Abstract
It is now generally accepted that the ‘central genome dogma’ (i.e. a causal chain going from DNA to RNA to proteins and downstream to biological functions) should be replaced by the ‘fluid genome dogma’, that is, complex feed-forward and feed-back cycles that interconnect organism and environment by epigenomic programing – and reprograming – throughout life and at all levels, sometimes also down the generations. The epigenomic programing is the net sum of interactions derived from own metabolism and microbiota as well as external factors such as diet, pharmaceuticals, environmental compounds, and so on. It is a growing body of results indicating that many chronic metabolic and degenerative disorders and diseases – often called ‘civilization diseases’ – are initiated and/or influenced upon by non-optimal epigenomic programing, often taking place early in life. In this context, the first 1,000 days of life – from conception into early infancy – is often called the most important period of life. The following sections present some major mechanisms for epigenomic programing as well as some factors assumed to be of importance. The need for more information about own genome and metagenome, as well as a substantial lack of adequate information regarding dietary and environmental databases are also commented upon. However, the mere fact that we can influence epigenomic health programing opens up the way for prophylactic and therapeutic interventions. The authors underline the importance of creating a ‘Human Gut Microbiota and Epigenomic Platform’ in order to facilitate interdisciplinary collaborations among scientists and clinicians engaged in host microbial ecology, nutrition, metagenomics, epigenomics and metabolomics as well as in disease epidemiology, prevention and treatment.
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Affiliation(s)
- Boris A Shenderov
- Laboratory of Biology of Bifidobacteria, Moscow Research Institute of Epidemiology and Microbiology after G.N. Gabrichevsky, Moscow, Russia
| | - Tore Midtvedt
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, Stockholm, Sweden
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