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Mwachaka PM, Gichangi P, Abdelmalek A, Odula P, Ogeng'o J. Impact of varying maternal dietary folate intake on cerebellar cortex histomorphology and cell density in offspring rats. Int J Dev Neurosci 2024; 84:406-422. [PMID: 38773676 DOI: 10.1002/jdn.10337] [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: 01/29/2024] [Revised: 04/26/2024] [Accepted: 05/04/2024] [Indexed: 05/24/2024] Open
Abstract
The cerebellum has a long, protracted developmental period that spans from the embryonic to postnatal periods; as a result, it is more sensitive to intrauterine and postnatal insults like nutritional deficiencies. Folate is crucial for foetal and early postnatal brain development; however, its effects on cerebellar growth and development are unknown. The aim of this study was to examine the effects of maternal folate intake on the histomorphology and cell density of the developing cerebellum. Twelve adult female rats (rattus norvegicus) were randomly assigned to one of four premixed diet groups: standard (2 mg/kg), folate-deficient (0 mg/kg), folate-supplemented (8 mg/kg) or folate supra-supplemented (40 mg/kg). The rats started their diets 14 days before mating and consumed them throughout pregnancy and lactation. On postnatal days 1, 7, 21 and 35, five pups from each group were sacrificed, and their brains were processed for light microscopic analysis. Histomorphology and cell density of the external granule, molecular, Purkinje and internal granule layers were obtained. The folate-deficient diet group had smaller, dysmorphic cells and significantly lower densities of external granule, molecular, Purkinje and internal granule cells. Although the folate-enriched groups had greater cell densities than the controls, the folate-supplemented group had considerably higher cell densities than the supra-supplemented group. The folate supra-supplemented group had ectopic Purkinje cells in the internal granule cell layer. These findings imply that a folate-deficient diet impairs cellular growth and reduces cell density in the cerebellar cortex. On the other hand, folate supplementation increases cell densities, but there appears to be an optimal dose of supplementation since excessive folate levels may be detrimental.
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Affiliation(s)
| | - Peter Gichangi
- Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Adel Abdelmalek
- Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Paul Odula
- Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Julius Ogeng'o
- Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
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van der Veer BK, Chen L, Tsaniras SC, Brangers W, Chen Q, Schroiff M, Custers C, Kwak HH, Khoueiry R, Cabrera R, Gross SS, Finnell RH, Lei Y, Koh KP. Epigenetic regulation by TET1 in gene-environmental interactions influencing susceptibility to congenital malformations. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.21.581196. [PMID: 39026762 PMCID: PMC11257484 DOI: 10.1101/2024.02.21.581196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
The etiology of neural tube defects (NTDs) involves complex gene-environmental interactions. Folic acid (FA) prevents NTDs, but the mechanisms remain poorly understood and at least 30% of human NTDs resist the beneficial effects of FA supplementation. Here, we identify the DNA demethylase TET1 as a nexus of folate-dependent one-carbon metabolism and genetic risk factors post-neural tube closure. We determine that cranial NTDs in Tet1 -/- embryos occur at two to three times higher penetrance in genetically heterogeneous than in homogeneous genetic backgrounds, suggesting a strong impact of genetic modifiers on phenotypic expression. Quantitative trait locus mapping identified a strong NTD risk locus in the 129S6 strain, which harbors missense and modifier variants at genes implicated in intracellular endocytic trafficking and developmental signaling. NTDs across Tet1 -/- strains are resistant to FA supplementation. However, both excess and depleted maternal FA diets modify the impact of Tet1 loss on offspring DNA methylation primarily at neurodevelopmental loci. FA deficiency reveals susceptibility to NTD and other structural brain defects due to haploinsufficiency of Tet1. In contrast, excess FA in Tet1 -/- embryos drives promoter DNA hypermethylation and reduced expression of multiple membrane solute transporters, including a FA transporter, accompanied by loss of phospholipid metabolites. Overall, our study unravels interactions between modified maternal FA status, Tet1 gene dosage and genetic backgrounds that impact neurotransmitter functions, cellular methylation and individual susceptibilities to congenital malformations, further implicating that epigenetic dysregulation may underlie NTDs resistant to FA supplementation.
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Affiliation(s)
- Bernard K. van der Veer
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Lehua Chen
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Spyridon Champeris Tsaniras
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Wannes Brangers
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Qiuying Chen
- Department of Pharmacology, Weill Cornell Medical College, New York, NY 10065, USA
| | - Mariana Schroiff
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Colin Custers
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Harm H.M. Kwak
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Rita Khoueiry
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
| | - Robert Cabrera
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
| | - Steven S. Gross
- Department of Pharmacology, Weill Cornell Medical College, New York, NY 10065, USA
| | - Richard H. Finnell
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
- Department of Molecular and Human Genetics, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Yunping Lei
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
| | - Kian Peng Koh
- Department of Development and Regeneration, Laboratory of Stem Cell and Developmental Epigenetics, KU Leuven, Leuven 3000, Belgium
- Department of Molecular and Cellular Biology, Center for Precision Environmental Health, Baylor College of Medicine, Houston, Texas, USA
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Mwachaka PM, Gichangi P, Abdelmalek A, Odula P, Ogeng'o J. Maternal usage of varying levels of dietary folate affects the postnatal development of cerebellar folia and cortical layer volumes. Nutr Neurosci 2024:1-11. [PMID: 38367228 DOI: 10.1080/1028415x.2024.2312304] [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: 02/19/2024]
Abstract
OBJECTIVE The cerebellum has a long, protracted developmental period; therefore, it is more sensitive to intrauterine and postnatal insults like nutritional deficiencies. Folate is an essential nutrient in fetal and postnatal brain development, and its supplementation during pregnancy is widely recommended. This study aimed to describe the effects of maternal folate intake on postnatal cerebellum development. METHODS Twelve adult female Rattus norwegicus (6-8 weeks old) rats were randomly assigned to one of four groups and given one of four premixed diets: a standard diet (2 mg/kg), a folate-deficient (folate 0 mg/kg), folate-supplemented (8 mg/kg), or folate supra-supplemented (40 mg/kg). The rats began consuming their specific diets 14 days before mating and were maintained on them throughout pregnancy and lactation. Five pups from each group were sacrificed, and their brains processed for light microscopic examination on postnatal days 1, 7, 21, and 35. The data gathered included the morphology of the cerebellar folia and an estimate of the volume of the cerebellar cortical layer using the Cavalieri method. RESULTS Folia of the folate-supplemented and supra-supplemented groups were thicker and showed extensive branching with sub-lobule formation. The folate-deficient diet group's folia were smaller, had more inter-folial spaces, or fused. When compared to the folate-deficient group, the volumes of the cerebellum and individual cerebellar cortical layers were significantly larger in the folate-supplemented and supra-supplemented groups (p<0.05). CONCLUSION Folate supplementation during pregnancy and lactation improves the degree and complexity of the cerebellar folia and the volumes of individual cerebellar cortical layers.
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Affiliation(s)
- Philip Maseghe Mwachaka
- Department of Human Anatomy and Medical Physiology, Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Peter Gichangi
- Department of Human Anatomy and Medical Physiology, Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Adel Abdelmalek
- Department of Human Anatomy and Medical Physiology, Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Paul Odula
- Department of Human Anatomy and Medical Physiology, Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
| | - Julius Ogeng'o
- Department of Human Anatomy and Medical Physiology, Faculty of Health Sciences, University of Nairobi, Nairobi, Kenya
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Zhuang Y, Li C, Zhao F, Yan Y, Pan H, Zhan J, Behnisch T. E3 Ubiquitin Ligase Uhrf2 Knockout Reveals a Critical Role in Social Behavior and Synaptic Plasticity in the Hippocampus. Int J Mol Sci 2024; 25:1543. [PMID: 38338822 PMCID: PMC10855348 DOI: 10.3390/ijms25031543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024] Open
Abstract
The hippocampal formation, particularly the CA2 subregion, is critical for social memory formation and memory processing, relying on synaptic plasticity-a fundamental mechanism by which synapses strengthen. Given the role of the ubiquitin-proteasome system (UPS) in various nervous system processes, including learning and memory, we were particularly interested in exploring the involvement of RING-type ubiquitin E3 ligases, such as UHRF2 (NIRF), in social behavior and synaptic plasticity. Our results revealed altered social behavior in mice with systemic Uhrf2 knockout, including changes in nest building, tube dominance, and the three-chamber social novelty test. In Uhrf2 knockout mice, the entorhinal cortex-CA2 circuit showed significant reductions in synaptic plasticity during paired-pulse facilitation and long-term potentiation, while the inability to evoke synaptic plasticity in the Schaffer-collateral CA2 synapses remained unaffected. These changes in synaptic plasticity correlated with significant changes in gene expression including genes related to vesicle trafficking and transcriptional regulation. The effects of Uhrf2 knockout on synaptic plasticity and the observed gene expression changes highlight UHRF2 as a regulator of learning and memory processes at both the cellular and systemic levels. Targeting E3 ubiquitin ligases, such as UHRF2, may hold therapeutic potential for memory-related disorders, warranting further investigation.
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Affiliation(s)
- Yinghan Zhuang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Chuhan Li
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Fang Zhao
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Yan Yan
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Hongjie Pan
- National Health Commission (NHC) Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, China
| | - Jianmin Zhan
- National Health Commission (NHC) Key Laboratory of Reproduction Regulation, Shanghai Institute of Planned Parenthood Research, Fudan University, Shanghai 200032, China
| | - Thomas Behnisch
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
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Rajesh V, Divya PK. Embryonic exposure to decitabine induces multiple neural tube defects in developing zebrafish. FISH PHYSIOLOGY AND BIOCHEMISTRY 2023; 49:1357-1379. [PMID: 37982970 DOI: 10.1007/s10695-023-01261-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 11/01/2023] [Indexed: 11/21/2023]
Abstract
Neural tube defects are severe congenital disorders of the central nervous system that originate during embryonic development when the neural tube fails to close completely. It affects one to two infants per 1000 births. The aetiology is multifactorial with contributions from both genetic and environmental factors. Dysregulated epigenetic mechanisms, in particular the abnormal genome-wide methylation during embryogenesis, have been linked to developmental abnormalities including neural tube defects. The current study investigated the influence of decitabine (DCT), a DNA methylation inhibitor, on embryonic development in zebrafish, with a focus on neural tube formation. The developing zebrafish embryos were exposed to graded concentrations of decitabine (from 13.69 μM to 1 mM) before the onset of neurulation. The developmental process was monitored at regular time intervals post fertilization. At 120 h post fertilization, the developing embryos were inspected individually to determine the incidence and severity of neural tube defects. Using alizarin red staining, the cranial and caudal neural tube morphology was examined in formaldehyde fixed larvae. Anomalies in neural tube and somite development, as well as a delay in hatching, were discovered at an early stage of development. As development continued, neural tube defects became increasingly evident, and there was a concentration-dependent rise in the prevalence and severity of various neural tube defects. 90% of growing embryos in the group exposed to decitabine 1 mM had multiple neural tube malformations, and 10% had isolated neural tube defects. With several abnormalities, the caudal region of the neural tube was seriously compromised. The histopathological studies supported the malformations in neural tube. Our study revealed the harmful impact of decitabine on the development of the neural tube in growing zebrafish. Moreover, these findings support the hypothesis that the hypomethylation during embryonic development causes neural tube defects.
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Affiliation(s)
- Venugopalan Rajesh
- Department of Pharmacology, The Erode College of Pharmacy and Research Institute affiliated to The Tamil Nadu Dr. M.G.R. Medical University, Veppampalayam, Vallipurathampalayam (Po), Erode, Chennai, Tamil Nadu, 638112, India.
| | - Pachangattupalayam Karuppusamy Divya
- Department of Pharmacology, The Erode College of Pharmacy and Research Institute affiliated to The Tamil Nadu Dr. M.G.R. Medical University, Veppampalayam, Vallipurathampalayam (Po), Erode, Chennai, Tamil Nadu, 638112, India
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Fardous AM, Heydari AR. Uncovering the Hidden Dangers and Molecular Mechanisms of Excess Folate: A Narrative Review. Nutrients 2023; 15:4699. [PMID: 37960352 PMCID: PMC10648405 DOI: 10.3390/nu15214699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/26/2023] [Accepted: 11/03/2023] [Indexed: 11/15/2023] Open
Abstract
This review delves into the intricate relationship between excess folate (vitamin B9) intake, especially its synthetic form, namely, folic acid, and its implications on health and disease. While folate plays a pivotal role in the one-carbon cycle, which is essential for DNA synthesis, repair, and methylation, concerns arise about its excessive intake. The literature underscores potential deleterious effects, such as an increased risk of carcinogenesis; disruption in DNA methylation; and impacts on embryogenesis, pregnancy outcomes, neurodevelopment, and disease risk. Notably, these consequences stretch beyond the immediate effects, potentially influencing future generations through epigenetic reprogramming. The molecular mechanisms underlying these effects were examined, including altered one-carbon metabolism, the accumulation of unmetabolized folic acid, vitamin-B12-dependent mechanisms, altered methylation patterns, and interactions with critical receptors and signaling pathways. Furthermore, differences in the effects and mechanisms mediated by folic acid compared with natural folate are highlighted. Given the widespread folic acid supplementation, it is imperative to further research its optimal intake levels and the molecular pathways impacted by its excessive intake, ensuring the health and well-being of the global population.
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Affiliation(s)
- Ali M. Fardous
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA;
| | - Ahmad R. Heydari
- Department of Nutrition and Food Science, Wayne State University, Detroit, MI 48202, USA;
- Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, MI 48202, USA
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Ren Q, Zhang G, Yan R, Zhou D, Huang L, Zhang Q, Li W, Huang G, Li Z, Yan J. SAM/SAH Mediates Parental Folate Deficiency-Induced Neural Cell Apoptosis in Neonatal Rat Offspring: The Expression of Bcl-2, Bax, and Caspase-3. Int J Mol Sci 2023; 24:14508. [PMID: 37833955 PMCID: PMC10573037 DOI: 10.3390/ijms241914508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/20/2023] [Accepted: 09/22/2023] [Indexed: 10/15/2023] Open
Abstract
Research demonstrated that folate deficiency in either the mother or father could impact the biological functions of the offspring's of neural cells. Folate deficiency can also impair the methionine cycle, thus contributing to the conversion of S-adenosylmethionine (SAM) to S-adenosylhomocysteine (SAH), which could potentially cause damage to the central nervous system. The study focused on the effect of parental folate deficiency on neural cell apoptosis in offspring neonatal rats and whether it is mediated by the levels of SAM and SAH in brains. The experimental design was conducted by feeding female and male Sprague Dawley (SD) rats with either folate-deficient or folate-normal diets, sacrificing the offspring within 24 h and isolating their brain tissue. Rats were divided into four groups: the maternal-folate-deficient and paternal-folate-deficient (D-D) group; the maternal-folate-deficient and paternal-folate-normal (D-N) group; the maternal-folate-normal and paternal-folate-deficient (N-D) group; and the maternal-folate-normal and paternal-folate-normal (N-N) group. There was down-regulation of B-cell lymphoma 2 (Bcl-2) expression, up-regulation of Bcl-2-associated X protein (Bax) and Caspase-3 expression of neural cells, and pathological changes in the brain ultrastructure, as well as decreased SAM levels, increased SAH levels, and a decreased SAM/SAH ratio in the rat fetal brain via parental folate deficiency. In conclusion, parental folate deficiency could induce the apoptosis of neural cells in neonatal offspring rats, while biparental folate deficiency had the greatest effect on offspring, and the unilateral effect was greater in mothers than in fathers. This process may be mediated by the levels of SAM and SAH in the rat fetal brain.
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Affiliation(s)
- Qinghan Ren
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
| | - Guoquan Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
| | - Ruiting Yan
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
| | - Dezheng Zhou
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
| | - Li Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
| | - Qianwen Zhang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
| | - Wen Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Guowei Huang
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Zhenshu Li
- Department of Nutrition and Food Science, School of Public Health, Tianjin Medical University, Tianjin 300070, China; (Q.R.); (G.Z.); (R.Y.); (D.Z.); (L.H.); (Q.Z.); (W.L.); (G.H.)
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
| | - Jing Yan
- Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin 300070, China
- Department of Social Medicine and Health Administration, School of Public Health, Tianjin Medical University, Tianjin 300070, China
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8
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Zanin Palchetti C, Gomes Gonçalves N, Vidal Ferreira N, Santos IS, Andrade Lotufo P, Bensenor IM, Suemoto CK, Marchioni DML. Dietary folate intake and its association with longitudinal changes in cognition function. Clin Nutr ESPEN 2023; 55:332-339. [PMID: 37202066 DOI: 10.1016/j.clnesp.2023.04.013] [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: 02/21/2023] [Revised: 04/01/2023] [Accepted: 04/16/2023] [Indexed: 05/20/2023]
Abstract
BACKGROUND & AIMS Folate (vitamin B9) is an essential co-factor for one-carbon metabolism. Controversial evidence has emerged regarding the association between folate and cognitive performance. The aim of the study was to investigate the association between baseline dietary folate intake and cognitive decline in a population exposed to mandatory fortification during a median follow-up of 8 years. METHODS Multicenter, prospective cohort study involving 15,105 public servants aged 35-74 years old, both sexes, from The Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Baseline dietary intake was assessed by a Food Frequency Questionnaire (FFQ). Six cognitive tests were performed in the three waves to assess memory, executive function and global cognition. Linear mixed-effects models were used to assess the association between dietary folate intake at baseline and changes in cognition over time. RESULTS Data from 11,276 participants were analyzed. The mean (SD) age was 51.7 (9) years, 50% were women, 63% were overweight/obese, and 56% had graduated from college or more. Overall dietary folate intake was not associated with cognitive decline; neither vitamin B12 intake was a modifier of this association. General dietary supplements and specifically multivitamins use did not affect these findings. Natural food folate group was associated with a slower rate of global cognitive decline (β (95% CI): 0.001 (0.000; 0.002), P = 0.015). There was no association between fortified food group and cognition scores. CONCLUSION Overall dietary folate intake was not associated with cognitive function in this Brazilian population. However, folate naturally occurring in food sources may slow global cognitive decline.
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Affiliation(s)
- Cecília Zanin Palchetti
- Department of Nutrition, Faculty of Public Health, University of São Paulo, São Paulo, Brazil.
| | | | - Naomi Vidal Ferreira
- Division of Geriatrics, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Itamar S Santos
- Center for Clinical and Epidemiological Research, University Hospital, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Paulo Andrade Lotufo
- Center for Clinical and Epidemiological Research, University Hospital, University of Sao Paulo Medical School, São Paulo, Brazil
| | - Isabela M Bensenor
- Center for Clinical and Epidemiological Research, University Hospital, University of Sao Paulo Medical School, São Paulo, Brazil
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9
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Caffrey A, Lamers Y, Murphy MM, Letourneau N, Irwin RE, Pentieva K, Ward M, Tan A, Rojas‐Gómez A, Santos‐Calderón LA, Canals‐Sans J, Leung BMY, Bell R, Giesbrecht GF, Dewey D, Field CJ, Kobor M, Walsh CP, McNulty H. Epigenetic effects of folate and related B vitamins on brain health throughout life: Scientific substantiation and translation of the evidence for health improvement strategies. NUTR BULL 2023; 48:267-277. [PMID: 36807740 PMCID: PMC10946506 DOI: 10.1111/nbu.12611] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/15/2023] [Accepted: 01/23/2023] [Indexed: 02/23/2023]
Abstract
Suboptimal status of folate and/or interrelated B vitamins (B12 , B6 and riboflavin) can perturb one-carbon metabolism and adversely affect brain development in early life and brain function in later life. Human studies show that maternal folate status during pregnancy is associated with cognitive development in the child, whilst optimal B vitamin status may help to prevent cognitive dysfunction in later life. The biological mechanisms explaining these relationships are not clear but may involve folate-related DNA methylation of epigenetically controlled genes related to brain development and function. A better understanding of the mechanisms linking these B vitamins and the epigenome with brain health at critical stages of the lifecycle is necessary to support evidence-based health improvement strategies. The EpiBrain project, a transnational collaboration involving partners in the United Kingdom, Canada and Spain, is investigating the nutrition-epigenome-brain relationship, particularly focussing on folate-related epigenetic effects in relation to brain health outcomes. We are conducting new epigenetics analysis on bio-banked samples from existing well-characterised cohorts and randomised trials conducted in pregnancy and later life. Dietary, nutrient biomarker and epigenetic data will be linked with brain outcomes in children and older adults. In addition, we will investigate the nutrition-epigenome-brain relationship in B vitamin intervention trial participants using magnetoencephalography, a state-of-the-art neuroimaging modality to assess neuronal functioning. The project outcomes will provide an improved understanding of the role of folate and related B vitamins in brain health, and the epigenetic mechanisms involved. The results are expected to provide scientific substantiation to support nutritional strategies for better brain health across the lifecycle.
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Affiliation(s)
- A. Caffrey
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical SciencesUlster UniversityColeraineUK
| | - Y. Lamers
- British Columbia Children's Hospital Research Institute, Food Nutrition and Health Program, Faculty of Land and Food SystemsThe University of British ColumbiaVancouverBritish ColumbiaCanada
| | - M. M. Murphy
- Unit of Preventive Medicine & Public Health, Department of Basic Medical Sciences, Faculty of Medicine & Health SciencesUniversitat Rovira i Virgili, IISPVReusSpain
- CIBEROBN, ISCIIIMadridSpain
| | - N. Letourneau
- Faculty of Nursing and Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - R. E. Irwin
- Genomic Medicine Group, School of Biomedical SciencesUlster UniversityColeraineUK
| | - K. Pentieva
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical SciencesUlster UniversityColeraineUK
| | - M. Ward
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical SciencesUlster UniversityColeraineUK
| | - A. Tan
- British Columbia Children's Hospital Research Institute, Food Nutrition and Health Program, Faculty of Land and Food SystemsThe University of British ColumbiaVancouverBritish ColumbiaCanada
| | - A. Rojas‐Gómez
- Unit of Preventive Medicine & Public Health, Department of Basic Medical Sciences, Faculty of Medicine & Health SciencesUniversitat Rovira i Virgili, IISPVReusSpain
| | - L. A. Santos‐Calderón
- Unit of Preventive Medicine & Public Health, Department of Basic Medical Sciences, Faculty of Medicine & Health SciencesUniversitat Rovira i Virgili, IISPVReusSpain
| | - J. Canals‐Sans
- Department of Psychology, Faculty of Educational Sciences and PsychologyUniversitat Rovira i VirgiliTarragonaSpain
| | - B. M. Y. Leung
- Faulty of Health SciencesUniversity of LethbridgeLethbridgeAlbertaCanada
| | - R. Bell
- Faculty of Agricultural, Life and Environment ScienceUniversity of AlbertaEdmontonAlbertaCanada
| | - G. F. Giesbrecht
- Faculty of Nursing and Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - D. Dewey
- Faculty of Nursing and Cumming School of MedicineUniversity of CalgaryCalgaryAlbertaCanada
| | - C. J. Field
- Faculty of Agricultural, Life and Environment ScienceUniversity of AlbertaEdmontonAlbertaCanada
| | - M. Kobor
- British Columbia Children's Hospital Research Institute, Food Nutrition and Health Program, Faculty of Land and Food SystemsThe University of British ColumbiaVancouverBritish ColumbiaCanada
| | - C. P. Walsh
- Genomic Medicine Group, School of Biomedical SciencesUlster UniversityColeraineUK
| | - H. McNulty
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical SciencesUlster UniversityColeraineUK
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10
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Arutjunyan AV, Milyutina YP, Shcherbitskaia AD, Kerkeshko GO, Zalozniaia IV. Epigenetic Mechanisms Involved in the Effects of Maternal Hyperhomocysteinemia on the Functional State of Placenta and Nervous System Plasticity in the Offspring. BIOCHEMISTRY. BIOKHIMIIA 2023; 88:435-456. [PMID: 37080931 DOI: 10.1134/s0006297923040016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
According to modern view, susceptibility to diseases, specifically to cognitive and neuropsychiatric disorders, can form during embryonic development. Adverse factors affecting mother during the pregnancy increase the risk of developing pathologies. Despite the association between elevated maternal blood homocysteine (Hcy) and fetal brain impairments, as well as cognitive deficits in the offspring, the role of brain plasticity in the development of these pathologies remains poorly studied. Here, we review the data on the negative impact of hyperhomocysteinemia (HHcy) on the neural plasticity, in particular, its possible influence on the offspring brain plasticity through epigenetic mechanisms, such as changes in intracellular methylation potential, activity of DNA methyltransferases, DNA methylation, histone modifications, and microRNA expression in brain cells. Since placenta plays a key role in the transport of nutrients and transmission of signals from mother to fetus, its dysfunction due to aberrant epigenetic regulation can affect the development of fetal CNS. The review also presents the data on the impact of maternal HHcy on the epigenetic regulation in the placenta. The data presented in the review are not only interesting from purely scientific point of view, but can help in understanding the role of HHcy and epigenetic mechanisms in the pathogenesis of diseases, such as pregnancy pathologies resulting in the delayed development of fetal brain, cognitive impairments in the offspring during childhood, and neuropsychiatric and neurodegenerative disorders later in life, as well as in the search for approaches for their prevention using neuroprotectors.
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Affiliation(s)
- Alexander V Arutjunyan
- Ott Research Institute of Obstetrics, Gynecology and Reproductive Medicine, St. Petersburg, 199034, Russia.
- St. Petersburg Institute of Bioregulation and Gerontology, St. Petersburg, 197110, Russia
| | - Yulia P Milyutina
- Ott Research Institute of Obstetrics, Gynecology and Reproductive Medicine, St. Petersburg, 199034, Russia
- St. Petersburg State Pediatric Medical University, St. Petersburg, 194100, Russia
| | - Anastasia D Shcherbitskaia
- Ott Research Institute of Obstetrics, Gynecology and Reproductive Medicine, St. Petersburg, 199034, Russia
- Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, Saint Petersburg, 194223, Russia
| | - Gleb O Kerkeshko
- Ott Research Institute of Obstetrics, Gynecology and Reproductive Medicine, St. Petersburg, 199034, Russia
- St. Petersburg Institute of Bioregulation and Gerontology, St. Petersburg, 197110, Russia
| | - Irina V Zalozniaia
- Ott Research Institute of Obstetrics, Gynecology and Reproductive Medicine, St. Petersburg, 199034, Russia
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11
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Bobrowski-Khoury N, Sequeira JM, Quadros EV. Brain Uptake of Folate Forms in the Presence of Folate Receptor Alpha Antibodies in Young Rats: Folate and Antibody Distribution. Nutrients 2023; 15:nu15051167. [PMID: 36904166 PMCID: PMC10005127 DOI: 10.3390/nu15051167] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/23/2023] [Accepted: 02/23/2023] [Indexed: 03/03/2023] Open
Abstract
In a rat model, following exposure to rat folate receptor alpha antibodies (FRαAb) during gestation, FRαAb accumulates in the placenta and the fetus and blocks folate transport to the fetal brain and produces behavioral deficits in the offspring. These deficits could be prevented with folinic acid. Therefore, we sought to evaluate folate transport to the brain in young rat pups and determine what effect FRαAb has on this process, to better understand the folate receptor autoimmune disorder associated with cerebral folate deficiency (CFD) in autism spectrum disorders (ASD). When injected intraperitoneally (IP), FRαAb localizes to the choroid plexus and blood vessels including the capillaries throughout the brain parenchyma. Biotin-tagged folic acid shows distribution in the white matter tracts in the cerebrum and cerebellum. Since these antibodies can block folate transport to the brain, we orally administered various folate forms to identify the form that is better-absorbed and transported to the brain and is most effective in restoring cerebral folate status in the presence of FRαAb. The three forms of folate, namely folic acid, D,L-folinic acid and levofolinate, are converted to methylfolate while L-methylfolate is absorbed as such and all are efficiently distributed to the brain. However, significantly higher folate concentration is seen in the cerebrum and cerebellum with levofolinate in the presence or absence of FRαAb. Our results in the rat model support testing levofolinate to treat CFD in children with ASD.
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Affiliation(s)
| | - Jeffrey M. Sequeira
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
| | - Edward V. Quadros
- Department of Medicine, SUNY Downstate Health Sciences University, Brooklyn, NY 11203, USA
- Correspondence:
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12
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Martínez-Iglesias O, Naidoo V, Corzo L, Pego R, Seoane S, Rodríguez S, Alcaraz M, Muñiz A, Cacabelos N, Cacabelos R. DNA Methylation as a Biomarker for Monitoring Disease Outcome in Patients with Hypovitaminosis and Neurological Disorders. Genes (Basel) 2023; 14:genes14020365. [PMID: 36833292 PMCID: PMC9956161 DOI: 10.3390/genes14020365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 02/03/2023] Open
Abstract
DNA methylation remains an under-recognized diagnostic biomarker for several diseases, including neurodegenerative disorders. In this study, we examined differences in global DNA methylation (5mC) levels in serum samples from patients during the initial- and the follow-up visits. Each patient underwent a blood analysis and neuropsychological assessments. The analysis of 5mC levels revealed two categories of patients; Group A who, during the follow-up, had increased 5mC levels, and Group B who had decreased 5mC levels. Patients with low Fe-, folate-, and vitamin B12- levels during the initial visit showed increased levels of 5mC after treatment when assessed during the follow-up. During the follow-up, 5mC levels in Group A patients increased after treatment for hypovitaminosis with the nutraceutical compounds Animon Complex and MineraXin Plus. 5mC levels were maintained during the follow-up in Group A patients treated for neurological disorders with the bioproducts AtreMorine and NeoBrainine. There was a positive correlation between 5mC levels and MMSE scores, and an inverse correlation between 5mC and ADAS-Cog scores. This expected correlation was observed in Group A patients only. Our study appears to indicate that 5mC has a diagnostic value as a biomarker across different pathologies.
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13
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Fragoso-Bargas N, Page CM, Joubert BR, London SJ, Lee-Ødegård S, Opsahl JO, Sletner L, Jenum AK, Qvigstad E, Prasad RB, Moen GH, Birkeland KI, Sommer C. Epigenome-wide association study of serum folate in maternal peripheral blood leukocytes. Epigenomics 2023; 15:39-52. [PMID: 36974632 PMCID: PMC10072132 DOI: 10.2217/epi-2022-0427] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 03/02/2023] [Indexed: 03/29/2023] Open
Abstract
Aim: To perform an epigenome-wide association study (EWAS) of serum folate in maternal blood. Methods: Cross-ancestry (Europeans = 302, South Asians = 161) and ancestry-specific EWAS in the EPIPREG cohort were performed, followed by methyl quantitative trait loci analysis and association with cardiometabolic phenotypes. Replication was attempted using maternal folate intake and blood methylation data from the MoBa study and verified if the findings were significant in a previous EWAS of maternal serum folate in cord blood. Results & conclusion: cg19888088 (cross-ancestry) in EBF3, cg01952260 (Europeans) and cg07077240 (South Asians) in HERC3 were associated with serum folate. cg19888088 and cg01952260 were associated with diastolic blood pressure. cg07077240 was associated with variants in CASC15. The findings were not replicated and were not significant in cord blood.
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Affiliation(s)
- Nicolas Fragoso-Bargas
- Department of Endocrinology, Morbid Obesity & Preventive Medicine, Oslo University Hospital, 0424, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318, Oslo, Norway
| | - Christian M Page
- Centre for Fertility & Health, Norwegian Institute of Public Health, 0403, Oslo, Norway
- Department of Mathematics, Faculty of Mathematics & Natural Sciences, University of Oslo, 0315, Oslo, Norway
| | - Bonnie R Joubert
- Department of Health & Human Services, Population Health Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Durham, NC 27709, USA
| | - Stephanie J London
- Department of Health & Human Services, Epidemiology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA
| | - Sindre Lee-Ødegård
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318, Oslo, Norway
| | - Julia O Opsahl
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318, Oslo, Norway
| | - Line Sletner
- Department of Pediatric & Adolescents Medicine, Akershus University Hospital, 1478, Lørenskog, Norway
| | - Anne K Jenum
- Department of General Practice, Institute of Health & Society, University of Oslo, 0318, Oslo, Norway
| | - Elisabeth Qvigstad
- Department of Endocrinology, Morbid Obesity & Preventive Medicine, Oslo University Hospital, 0424, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318, Oslo, Norway
| | - Rashmi B Prasad
- Lund University Diabetes Centre, 214 28, Malmö, Sweden
- Institute for Molecular Medicine Finland FIMM, Helsinki University, 00014, Helsinki, Finland
| | - Gunn-Helen Moen
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318, Oslo, Norway
- Institute of Molecular Biosciences, The University of Queensland, St Lucia QLD 4072, Australia
- Department of Public Health & Nursing, K.G. Jebsen Center for Genetic Epidemiology, NTNU, Norwegian University of Science & Technology, 7491, Trondheim, Norway
- The Frazer Institute, The University of Queensland, 4102, Woolloongabba, Australia
- Population Health Sciences, Bristol Medical School, University of Bristol, BS8 1QU, Bristol, United Kingdom
| | - Kåre I Birkeland
- Department of Endocrinology, Morbid Obesity & Preventive Medicine, Oslo University Hospital, 0424, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, 0318, Oslo, Norway
| | - Christine Sommer
- Department of Endocrinology, Morbid Obesity & Preventive Medicine, Oslo University Hospital, 0424, Oslo, Norway
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Compañ-Gabucio LM, Torres-Collado L, Garcia-de la Hera M, Fernández-Somoano A, Tardón A, Julvez J, Sunyer J, Rebagliato M, Murcia M, Ibarluzea J, Santa-Marina L, Vioque J. Association between the Use of Folic Acid Supplements during Pregnancy and Children's Cognitive Function at 7-9 Years of Age in the INMA Cohort Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12123. [PMID: 36231425 PMCID: PMC9566194 DOI: 10.3390/ijerph191912123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
This study investigated the association between maternal low (<400 μg/day) or high (≥1000 μg/day) folic acid supplements (FAs) use during pregnancy and the attentional function and working memory in boys and girls at age 7-9. A longitudinal analysis based on 1609 mother-child pairs from the Spanish Infancia y Medio Ambiente Project was carried out. Multivariable regression analyses revealed that, compared to the recommended FAs use, a low FAs use during the second period of pregnancy was associated with a lower alertness in all children (β = 18.70 ms; 95% CI: 7.51; 29.89) and in girls (β = 30.01 ms; 95% CI: 12.96; 47.01), and with a lower N-back Task performance in boys (d' number 2-back (β = -0.25; 95% CI: -0.49; 0.01)). A high FAs use throughout the two periods of pregnancy was associated with a better N-back Task performance only in girls (d' number 2-back (β = 0.28; 95% CI: 0.01; 0.56) and d' number 3-back (β = 0.32; 95% CI: 0.08; 0.56)). The maternal use of FAs beyond the periconceptional period may affect children's attentional function and working memory at age 7-9 differently for boys and girls.
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Affiliation(s)
- Laura María Compañ-Gabucio
- Unidad de Epidemiología de la Nutrición (EPINUT), Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550 Alicante, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), 03010 Alicante, Spain
| | - Laura Torres-Collado
- Unidad de Epidemiología de la Nutrición (EPINUT), Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550 Alicante, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), 03010 Alicante, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
| | - Manuela Garcia-de la Hera
- Unidad de Epidemiología de la Nutrición (EPINUT), Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550 Alicante, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), 03010 Alicante, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
| | - Ana Fernández-Somoano
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Instituto Universitario de Oncología Del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Roma Avenue s/n, 33001 Oviedo, Spain
| | - Adonina Tardón
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Instituto Universitario de Oncología Del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Roma Avenue s/n, 33001 Oviedo, Spain
| | - Jordi Julvez
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Institut d’Investigació Sanitària Pere Virgili (IISPV), Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain
- ISGlobal, 08003 Barcelona, Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
| | - Jordi Sunyer
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Institut d’Investigació Sanitària Pere Virgili (IISPV), Hospital Universitari Sant Joan de Reus, 43204 Reus, Spain
- ISGlobal, 08003 Barcelona, Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
- Hospital del Mar Medical Research Institute (IMIM), 08003 Barcelona, Spain
| | - Marisa Rebagliato
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Epidemiology and Environmental Health Joint Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), FISABIO—Public Health, FISABIO—Universitat Jaume I-Universitat de València, 46015 Valencia, Spain
- Department of Medicine, Universitat Jaume I, 12071 Castellon de la Plana, Spain
| | - Mario Murcia
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Epidemiology and Environmental Health Joint Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), FISABIO—Public Health, FISABIO—Universitat Jaume I-Universitat de València, 46015 Valencia, Spain
- Servicio de Análisis de Sistemas de Información Sanitaria, Conselleria de Sanitat, Generalitat Valenciana, 46010 Valencia, Spain
| | - Jesús Ibarluzea
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Group of Environmental Epidemiology, Biodonostia Health Research Institute, 20014 Donostia-San Sebastian, Spain
- Ministry of Health of the Basque Government, Sub-Directorate for Public Health and Addictions of Gipuzkoa, 20013 Donostia-San Sebastian, Spain
- School of Psychology, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastian, Spain
| | - Loreto Santa-Marina
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
- Group of Environmental Epidemiology, Biodonostia Health Research Institute, 20014 Donostia-San Sebastian, Spain
- Ministry of Health of the Basque Government, Sub-Directorate for Public Health and Addictions of Gipuzkoa, 20013 Donostia-San Sebastian, Spain
| | - Jesús Vioque
- Unidad de Epidemiología de la Nutrición (EPINUT), Departamento de Salud Pública, Historia de la Ciencia y Ginecología, Universidad Miguel Hernández (UMH), 03550 Alicante, Spain
- Instituto de Investigación Sanitaria y Biomédica de Alicante (ISABIAL), 03010 Alicante, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28034 Madrid, Spain
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15
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Wang S, Zeng Y, Pei P, He X, Liu F, Zhang T. Abnormal transcriptome-wide DNA demethylation induced by folate deficiency causes neural tube defects. Front Genet 2022; 13:987210. [PMID: 36199572 PMCID: PMC9529027 DOI: 10.3389/fgene.2022.987210] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
Neural tube defect (NTDs) is one of the most common and serious fetal and neonatal birth defects. Neural tube closure (NTC) is an exquisitely coordinated process and this procedure is influenced by both genetic and environmental factor. Folic acid (FA) supplementation is an effective for prevention of a proportion of NTDs, however, the mechanism remains unclear. In this study, our data demonstrated genome-wide enrichment of 5-hydroxymethylcytosine (5hmC) modification on active transcriptional start sites (TSS) and decreased 5-methylcytosine (5mC) binding to TSS under folate deficiency in mESCs (mouse embryonic stem cells). Furthermore, folate deficiency promoted 5hmC enrichment enhancer histone 3 lysine 27 acetylation (H3K27ac) binding to Shh pathway genes in mESCs. Upregulation of Shh target genes was observed in mouse brain tissue under low levels of maternal serum folate, along with increased expression of 5-methylcytosine dioxygenase Tet1 levels. Taken together, we found that folate deficiency promoted DNA demethylation and enriched 5hmC through recruitment of H3K27ac to activate the Shh signaling pathway. These results suggest that the 5hmC modification increases concomitantly with a positive correlation to Shh gene expression in folate deficiency-induced mouse NTDs.
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Affiliation(s)
- Shan Wang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China
- Children’s Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- *Correspondence: Shan Wang, ; Ting Zhang,
| | - Yubing Zeng
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Pei Pei
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
| | - Xuejia He
- Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China
| | - Fan Liu
- Children’s Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Ting Zhang
- Beijing Municipal Key Laboratory of Child Development and Nutriomics, Capital Institute of Pediatrics, Beijing, China
- Capital Institute of Pediatrics-Peking University Teaching Hospital, Beijing, China
- Children’s Hospital Capital Institute of Pediatrics, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- *Correspondence: Shan Wang, ; Ting Zhang,
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16
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Ondičová M, Irwin RE, Thursby SJ, Hilman L, Caffrey A, Cassidy T, McLaughlin M, Lees-Murdock DJ, Ward M, Murphy M, Lamers Y, Pentieva K, McNulty H, Walsh CP. Folic acid intervention during pregnancy alters DNA methylation, affecting neural target genes through two distinct mechanisms. Clin Epigenetics 2022; 14:63. [PMID: 35578268 PMCID: PMC9112484 DOI: 10.1186/s13148-022-01282-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/29/2022] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND We previously showed that continued folic acid (FA) supplementation beyond the first trimester of pregnancy appears to have beneficial effects on neurocognitive performance in children followed for up to 11 years, but the biological mechanism for this effect has remained unclear. Using samples from our randomized controlled trial of folic acid supplementation in second and third trimester (FASSTT), where significant improvements in cognitive and psychosocial performance were demonstrated in children from mothers supplemented in pregnancy with 400 µg/day FA compared with placebo, we examined methylation patterns from cord blood (CB) using the EPIC array which covers approximately 850,000 cytosine-guanine (CG) sites across the genome. Genes showing significant differences were verified using pyrosequencing and mechanistic approaches used in vitro to determine effects on transcription. RESULTS FA supplementation resulted in significant differences in methylation, particularly at brain-related genes. Further analysis showed these genes split into two groups. In one group, which included the CES1 gene, methylation changes at the promoters were important for regulating transcription. We also identified a second group which had a characteristic bimodal profile, with low promoter and high gene body (GB) methylation. In the latter, loss of methylation in the GB is linked to decreases in transcription: this group included the PRKAR1B/HEATR2 genes and the dopamine receptor regulator PDE4C. Overall, methylation in CB also showed good correlation with methylation profiles seen in a published data set of late gestation foetal brain samples. CONCLUSION We show here clear alterations in DNA methylation at specific classes of neurodevelopmental genes in the same cohort of children, born to FA-supplemented mothers, who previously showed improved cognitive and psychosocial performance. Our results show measurable differences at neural genes which are important for transcriptional regulation and add to the supporting evidence for continued FA supplementation throughout later gestation. This trial was registered on 15 May 2013 at www.isrctn.com as ISRCTN19917787.
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Affiliation(s)
- Miroslava Ondičová
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, UK
| | - Rachelle E Irwin
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, UK
| | - Sara-Jayne Thursby
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, UK
- The Johns Hopkins University School of Medicine, Baltimore, USA
| | - Luke Hilman
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, UK
| | - Aoife Caffrey
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, UK
| | - Tony Cassidy
- Psychology Institute, Ulster University, Coleraine, Northern Ireland, UK
| | - Marian McLaughlin
- Psychology Institute, Ulster University, Coleraine, Northern Ireland, UK
| | - Diane J Lees-Murdock
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, UK
| | - Mary Ward
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, UK
| | - Michelle Murphy
- Unitat de Medicina Preventiva i Salut Pública, Facultat de Medicina i Ciències de La Salut, Universitat Rovira i Virgili, Reus, Spain
| | - Yvonne Lamers
- Food, Nutrition, and Health Program, Faculty of Land and Food Systems, The University of British Columbia, and British Columbia Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Kristina Pentieva
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, UK
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, UK
| | - Colum P Walsh
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, UK.
- Centre for Research and Development, Region Gävleborg/Uppsala University, Gävle, Sweden.
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17
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Chattopadhyaya S, Ghosal S. DNA methylation: a saga of genome maintenance in hematological perspective. Hum Cell 2022; 35:448-461. [DOI: 10.1007/s13577-022-00674-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/13/2022] [Indexed: 12/21/2022]
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18
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Bermick J, Schaller M. Epigenetic regulation of pediatric and neonatal immune responses. Pediatr Res 2022; 91:297-327. [PMID: 34239066 DOI: 10.1038/s41390-021-01630-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/01/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Abstract
Epigenetic regulation of transcription is a collective term that refers to mechanisms known to regulate gene transcription without changing the underlying DNA sequence. These mechanisms include DNA methylation and histone tail modifications which influence chromatin accessibility, and microRNAs that act through post-transcriptional gene silencing. Epigenetics is known to regulate a variety of biological processes, and the role of epigtenetics in immunity and immune-mediated diseases is becoming increasingly recognized. While DNA methylation is the most widely studied, each of these systems play an important role in the development and maintenance of appropriate immune responses. There is clear evidence that epigenetic mechanisms contribute to developmental stage-specific immune responses in a cell-specific manner. There is also mounting evidence that prenatal exposures alter epigenetic profiles and subsequent immune function in exposed offspring. Early life exposures that are associated with poor long-term health outcomes also appear to impact immune specific epigenetic patterning. Finally, each of these epigenetic mechanisms contribute to the pathogenesis of a wide variety of diseases that manifest during childhood. This review will discuss each of these areas in detail. IMPACT: Epigenetics, including DNA methylation, histone tail modifications, and microRNA expression, dictate immune cell phenotypes. Epigenetics influence immune development and subsequent immune health. Prenatal, perinatal, and postnatal exposures alter immune cell epigenetic profiles and subsequent immune function. Numerous pediatric-onset diseases have an epigenetic component. Several successful strategies for childhood diseases target epigenetic mechanisms.
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Affiliation(s)
- Jennifer Bermick
- Department of Pediatrics, Division of Neonatology, University of Iowa, Iowa City, IA, USA. .,Iowa Inflammation Program, University of Iowa, Iowa City, IA, USA.
| | - Matthew Schaller
- Department of Pulmonary, Critical Care & Sleep Medicine, University of Florida, Gainesville, FL, USA
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19
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Wilson R, O'Connor D. Maternal folic acid and multivitamin supplementation: International clinical evidence with considerations for the prevention of folate-sensitive birth defects. Prev Med Rep 2021; 24:101617. [PMID: 34976673 PMCID: PMC8684027 DOI: 10.1016/j.pmedr.2021.101617] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 10/18/2021] [Accepted: 10/22/2021] [Indexed: 12/17/2022] Open
Abstract
More evidence is available for maternal intake, absorption, distribution, tissue specific concentrations, and pregnancy outcomes with folic acid (fortification/supplementation) during preconception - first trimester. This Quality Improvement prevention review used expert guidelines/opinions, systematic reviews, randomized control trials/controlled clinical trials, and observational case control/case series studies, published in English, from 1990 to August 2021. Optimization for an oral maternal folic acid supplementation is difficult because it relies on folic acid dose, type of folate supplement, bio-availability of the folate from foods, timing of supplementation initiation, maternal metabolism/genetic factors, and many other factors. There is continued use of high dose pre-food fortification 'RCT evidenced-based' folic acid supplementation for NTD recurrence pregnancy prevention. Innovation requires preconception and pregnancy use of 'carbon one nutrient' supplements (folic acid, vitamin B12, B6, choline), using the appropriate evidence, need to be considered. The consideration and adoption of directed personalized approaches for maternal complex risk could use serum folate testing for supplementation dosing choice. Routine daily folic acid dosing for low-risk women should consider a multivitamin with 0.4 mg of folic acid starting 3 months prior to conception until completion of breastfeeding. Routine folic acid dosing or preconception measurement of maternal serum folate (after 4-6 weeks of folate supplementation) could be considered for maternal complex risk group with genetic/medical/surgical co-morbidities. These new approaches for folic acid oral supplementation are required to optimize benefit (decreasing folate sensitive congenital anomalies; childhood morbidity) and minimizing potential maternal and childhood risk.
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Affiliation(s)
- R.D. Wilson
- Cumming School of Medicine, Department of Obstetrics and Gynecology, University of Calgary, FMC NT 435, 1403 29 St NW, Calgary, Alberta, Canada
| | - D.L. O'Connor
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
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20
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Matusheski NV, Caffrey A, Christensen L, Mezgec S, Surendran S, Hjorth MF, McNulty H, Pentieva K, Roager HM, Seljak BK, Vimaleswaran KS, Remmers M, Péter S. Diets, nutrients, genes and the microbiome: recent advances in personalised nutrition. Br J Nutr 2021; 126:1489-1497. [PMID: 33509307 PMCID: PMC8524424 DOI: 10.1017/s0007114521000374] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 01/13/2021] [Accepted: 01/23/2021] [Indexed: 12/28/2022]
Abstract
As individuals seek increasingly individualised nutrition and lifestyle guidance, numerous apps and nutrition programmes have emerged. However, complex individual variations in dietary behaviours, genotypes, gene expression and composition of the microbiome are increasingly recognised. Advances in digital tools and artificial intelligence can help individuals more easily track nutrient intakes and identify nutritional gaps. However, the influence of these nutrients on health outcomes can vary widely among individuals depending upon life stage, genetics and microbial composition. For example, folate may elicit favourable epigenetic effects on brain development during a critical developmental time window of pregnancy. Genes affecting vitamin B12 metabolism may lead to cardiometabolic traits that play an essential role in the context of obesity. Finally, an individual's gut microbial composition can determine their response to dietary fibre interventions during weight loss. These recent advances in understanding can lead to a more complete and integrated approach to promoting optimal health through personalised nutrition, in clinical practice settings and for individuals in their daily lives. The purpose of this review is to summarise presentations made during the DSM Science and Technology Award Symposium at the 13th European Nutrition Conference, which focused on personalised nutrition and novel technologies for health in the modern world.
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Affiliation(s)
- Nathan V. Matusheski
- Nutrition Science and Advocacy, DSM Nutritional Products LLC, Parsippany, NJ, USA
| | - Aoife Caffrey
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Lars Christensen
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Simon Mezgec
- Jožef Stefan International Postgraduate School, Jamova cesta 39, 1000Ljubljana, Slovenia
| | - Shelini Surendran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Whiteknights, ReadingRG6 6DZ, UK
| | - Mads F. Hjorth
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Kristina Pentieva
- Nutrition Innovation Centre for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, ColeraineBT52 1SA, Northern Republic of Ireland
| | - Henrik M. Roager
- Department of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Rolighedsvej 26, 1958 Frederiksberg, Frederiksberg, Denmark
| | - Barbara Koroušić Seljak
- Computer Systems Department, Jožef Stefan Institute, Jamova cesta 39, 1000 Ljubljana, Ljubljana, Slovenia
| | | | | | - Szabolcs Péter
- Nutrition Innovation Center, DSM Nutritional Products Ltd, Kaiseraugst, Switzerland
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21
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Saha S, Saha T, Rajamma U, Sinha S, Mukhopadhyay K. Analysis of association between components of the folate metabolic pathway and autism spectrum disorder in eastern Indian subjects. Mol Biol Rep 2021; 49:1281-1293. [PMID: 34792727 DOI: 10.1007/s11033-021-06956-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/11/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Folate has a pivotal role in maintaining different cellular processes including DNA integrity and neurotransmitter levels. Further, folate deficiency was reported in subjects with neuropsychiatric disorders including autism spectrum disorder (ASD). METHODS AND RESULTS We recruited ASD probands following the Diagnostic and Statistical Manual of Mental Disorder-IV/-5. Severity was assessed by the Childhood Autism Rating Scale2-Standard Test (CARS2-ST). Functional SNPs in reduced folate carrier1 (rs1051266), methylenetetrahydrofolate dehydrogenase (rs2236225), methylenetetrahydrofolate methyltransferase (rs1805087), methylenetetrahydrofolate reductase (rs1801133 and rs1801131), cystathionine-beta- synthase (rs5742905), and serine hydroxymethyltransferase (rs1979277) genes were analyzed in the ASD probands (N = 203), their parents and controls (N = 250) by PCR/TaqMan based methods. Plasma homocysteine and vitamin B12 levels were examined by Enzyme-Linked ImmunoSorbent Assay. Statistical analysis revealed higher frequencies of rs1051266 and rs1805087 "A" alleles (P = 8.233e-005 and P = 0.010 respectively) and rs1051266 "AA" genotype (P = 0.02) in the ASD probands. Gender based stratified analysis revealed higher frequency of rs1051266 "AA" in the male probands (P = 0.001) while frequencies of rs1805087 "A" (P = 0.001) and "AA" (P < 0.05), and rs2236225 "CC" (P = 0.03) were higher in the females. The case-control analysis also exhibited a significant difference in the occurrence of biallelic and triallelic haplotypes. rs1051266 "A", rs1979277 "T" and rs5742905 "C" alleles showed biased parental transmission (P = 0.02). CARS2-ST scores were higher in the presence of rs5742905 "T" while scores were lower in the presence of rs1979277 "T" and rs1051266 "A". ASD probands showed vitamin B12 deficiency. CONCLUSION Based on these observations, we infer that components needed for proper folate metabolism may influence ASD severity in this population.
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Affiliation(s)
- Sharmistha Saha
- Manovikas Biomedical Research and Diagnostic Centre, Manovikas Kendra, 482 Madudah, Plot I-24, Sector J, EM Bypass, Kolkata, West Bengal, 700107, India
| | - Tanusree Saha
- Manovikas Biomedical Research and Diagnostic Centre, Manovikas Kendra, 482 Madudah, Plot I-24, Sector J, EM Bypass, Kolkata, West Bengal, 700107, India.,Department of Microbiology, University of Alabama, Birmingham, USA
| | - Usha Rajamma
- Manovikas Biomedical Research and Diagnostic Centre, Manovikas Kendra, 482 Madudah, Plot I-24, Sector J, EM Bypass, Kolkata, West Bengal, 700107, India.,Inter University Centre for Biomedical Research & Super Specialty Hospital, Mahatma Gandhi University Campus at Thalappady, Kottayam, Kerala, India
| | - Swagata Sinha
- Manovikas Biomedical Research and Diagnostic Centre, Manovikas Kendra, 482 Madudah, Plot I-24, Sector J, EM Bypass, Kolkata, West Bengal, 700107, India
| | - Kanchan Mukhopadhyay
- Manovikas Biomedical Research and Diagnostic Centre, Manovikas Kendra, 482 Madudah, Plot I-24, Sector J, EM Bypass, Kolkata, West Bengal, 700107, India.
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22
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Altered dietary ratio of folic acid and vitamin B12 during pregnancy influences the expression of imprinted H19/IGF2 locus in C57BL/6 mice. Br J Nutr 2021; 128:1470-1489. [PMID: 34666844 DOI: 10.1017/s0007114521004220] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Maternal folic acid and vitamin B12 (B12) status during pregnancy influence fetal growth. This study elucidated the effect of altered dietary ratio of folic acid and B12 on the regulation of H19/IGF2 locus in C57BL/6 mice. Female mice were fed diets with 9 combinations of folic acid and B12 for 4 weeks. They were mated and the offspring born (F1) were continued on the same diet for 6 weeks post-weaning and were allowed to mate. The placenta and fetal (F2) tissues were collected at day 20 of gestation. H19 overexpression observed under dietary deficiency of folate combined with normal B12 (BNFD) was associated with an increased expression of miR-675 in maternal and fetal tissues. Insulin-like growth factor 2 (IGF2), expression was decreased under folic acid deficient conditions combined with normal, deficient or over-supplemented state of B12 (BNFD, BDFD, BOFD) in fetal tissues along with B12 deficiency combined with normal folic acid (BDFN) in the placenta. The altered expression of imprinted genes under folic acid deficient conditions was related to decreased serum levels of folate and body weight (F1). Hypermethylation observed at the H19 differentially methylated region (DMR) (in BNFD) might be responsible for the decreased expression of IGF2 in female fetal tissues. IGF2 DMR2 was found to be hypomethylated and associated with low serum B12 levels with B12 deficiency in fetal tissues. Results suggest that the altered dietary ratio of folic acid and B12 affects the in-utero development of the fetus in association with altered epigenetic regulation of H19/IGF2 locus.
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23
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Buck JM, Yu L, Knopik VS, Stitzel JA. DNA methylome perturbations: an epigenetic basis for the emergingly heritable neurodevelopmental abnormalities associated with maternal smoking and maternal nicotine exposure†. Biol Reprod 2021; 105:644-666. [PMID: 34270696 PMCID: PMC8444709 DOI: 10.1093/biolre/ioab138] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/29/2021] [Accepted: 07/14/2021] [Indexed: 11/13/2022] Open
Abstract
Maternal smoking during pregnancy is associated with an ensemble of neurodevelopmental consequences in children and therefore constitutes a pressing public health concern. Adding to this burden, contemporary epidemiological and especially animal model research suggests that grandmaternal smoking is similarly associated with neurodevelopmental abnormalities in grandchildren, indicative of intergenerational transmission of the neurodevelopmental impacts of maternal smoking. Probing the mechanistic bases of neurodevelopmental anomalies in the children of maternal smokers and the intergenerational transmission thereof, emerging research intimates that epigenetic changes, namely DNA methylome perturbations, are key factors. Altogether, these findings warrant future research to fully elucidate the etiology of neurodevelopmental impairments in the children and grandchildren of maternal smokers and underscore the clear potential thereof to benefit public health by informing the development and implementation of preventative measures, prophylactics, and treatments. To this end, the present review aims to encapsulate the burgeoning evidence linking maternal smoking to intergenerational epigenetic inheritance of neurodevelopmental abnormalities, to identify the strengths and weaknesses thereof, and to highlight areas of emphasis for future human and animal model research therein.
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Affiliation(s)
- Jordan M Buck
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, USA
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, USA
| | - Li Yu
- Department of Human Development and Family Studies, Purdue University, West Lafayette, IN, USA
| | - Valerie S Knopik
- Department of Human Development and Family Studies, Purdue University, West Lafayette, IN, USA
| | - Jerry A Stitzel
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, USA
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, USA
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24
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Hsiao TH, Lee GH, Chang YS, Chen BH, Fu TF. The Incoherent Fluctuation of Folate Pools and Differential Regulation of Folate Enzymes Prioritize Nucleotide Supply in the Zebrafish Model Displaying Folate Deficiency-Induced Microphthalmia and Visual Defects. Front Cell Dev Biol 2021; 9:702969. [PMID: 34268314 PMCID: PMC8277299 DOI: 10.3389/fcell.2021.702969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 05/26/2021] [Indexed: 11/30/2022] Open
Abstract
Objective Congenital eye diseases are multi-factorial and usually cannot be cured. Therefore, proper preventive strategy and understanding the pathomechanism underlying these diseases become important. Deficiency in folate, a water-soluble vitamin B, has been associated with microphthalmia, a congenital eye disease characterized by abnormally small and malformed eyes. However, the causal-link and the underlying mechanism between folate and microphthalmia remain incompletely understood. Methods We examined the eye size, optomotor response, intracellular folate distribution, and the expression of folate-requiring enzymes in zebrafish larvae displaying folate deficiency (FD) and ocular defects. Results FD caused microphthalmia and impeded visual ability in zebrafish larvae, which were rescued by folate and dNTP supplementation. Cell cycle analysis revealed cell accumulation at S-phase and sub-G1 phase. Decreased cell proliferation and increased apoptosis were found in FD larvae during embryogenesis in a developmental timing-specific manner. Lowered methylenetetrahydrofolate reductase (mthfr) expression and up-regulated methylenetetrahydrofolate dehydrogenase (NADP+-dependent)-1-like (mthfd1L) expression were found in FD larvae. Knocking-down mthfd1L expression worsened FD-induced ocular anomalies; whereas increasing mthfd1L expression provided a protective effect. 5-CH3-THF is the most sensitive folate pool, whose levels were the most significantly reduced in response to FD; whereas 10-CHO-THF levels were less affected. 5-CHO-THF is the most effective folate adduct for rescuing FD-induced microphthalmia and defective visual ability. Conclusion FD impeded nucleotides formation, impaired cell proliferation and differentiation, caused apoptosis and interfered active vitamin A production, contributing to ocular defects. The developmental timing-specific and incoherent fluctuation among folate adducts and increased expression of mthfd1L in response to FD reflect the context-dependent regulation of folate-mediated one-carbon metabolism, endowing the larvae to prioritize the essential biochemical pathways for supporting the continuous growth in response to folate depletion.
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Affiliation(s)
- Tsun-Hsien Hsiao
- The Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Gang-Hui Lee
- The Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Sheng Chang
- Department of Ophthalmology, College of Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.,Department of Ophthalmology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Bing-Hung Chen
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Tzu-Fun Fu
- The Institute of Basic Medical Science, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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25
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Tahir MS, Porto-Neto LR, Gondro C, Shittu OB, Wockner K, Tan AWL, Smith HR, Gouveia GC, Kour J, Fortes MRS. Meta-Analysis of Heifer Traits Identified Reproductive Pathways in Bos indicus Cattle. Genes (Basel) 2021; 12:768. [PMID: 34069992 PMCID: PMC8157873 DOI: 10.3390/genes12050768] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 12/12/2022] Open
Abstract
Fertility traits measured early in life define the reproductive potential of heifers. Knowledge of genetics and biology can help devise genomic selection methods to improve heifer fertility. In this study, we used ~2400 Brahman cattle to perform GWAS and multi-trait meta-analysis to determine genomic regions associated with heifer fertility. Heifer traits measured were pregnancy at first mating opportunity (PREG1, a binary trait), first conception score (FCS, score 1 to 3) and rebreeding score (REB, score 1 to 3.5). The heritability estimates were 0.17 (0.03) for PREG1, 0.11 (0.05) for FCS and 0.28 (0.05) for REB. The three traits were highly genetically correlated (0.75-0.83) as expected. Meta-analysis was performed using SNP effects estimated for each of the three traits, adjusted for standard error. We identified 1359 significant SNPs (p-value < 9.9 × 10-6 at FDR < 0.0001) in the multi-trait meta-analysis. Genomic regions of 0.5 Mb around each significant SNP from the meta-analysis were annotated to create a list of 2560 positional candidate genes. The most significant SNP was in the vicinity of a genomic region on chromosome 8, encompassing the genes SLC44A1, FSD1L, FKTN, TAL2 and TMEM38B. The genomic region in humans that contains homologs of these genes is associated with age at puberty in girls. Top significant SNPs pointed to additional fertility-related genes, again within a 0.5 Mb region, including ESR2, ITPR1, GNG2, RGS9BP, ANKRD27, TDRD12, GRM1, MTHFD1, PTGDR and NTNG1. Functional pathway enrichment analysis resulted in many positional candidate genes relating to known fertility pathways, including GnRH signaling, estrogen signaling, progesterone mediated oocyte maturation, cAMP signaling, calcium signaling, glutamatergic signaling, focal adhesion, PI3K-AKT signaling and ovarian steroidogenesis pathway. The comparison of results from this study with previous transcriptomics and proteomics studies on puberty of the same cattle breed (Brahman) but in a different population identified 392 genes in common from which some genes-BRAF, GABRA2, GABR1B, GAD1, FSHR, CNGA3, PDE10A, SNAP25, ESR2, GRIA2, ORAI1, EGFR, CHRNA5, VDAC2, ACVR2B, ORAI3, CYP11A1, GRIN2A, ATP2B3, CAMK2A, PLA2G, CAMK2D and MAPK3-are also part of the above-mentioned pathways. The biological functions of the positional candidate genes and their annotation to known pathways allowed integrating the results into a bigger picture of molecular mechanisms related to puberty in the hypothalamus-pituitary-ovarian axis. A reasonable number of genes, common between previous puberty studies and this study on early reproductive traits, corroborates the proposed molecular mechanisms. This study identified the polymorphism associated with early reproductive traits, and candidate genes that provided a visualization of the proposed mechanisms, coordinating the hypothalamic, pituitary, and ovarian functions for reproductive performance in Brahman cattle.
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Affiliation(s)
- Muhammad S. Tahir
- School of Chemistry and Molecular Bioscience, The University of Queensland Australia, Brisbane, QLD 4072, Australia; (M.S.T.); (O.B.S.); (K.W.); (A.W.L.T.); (H.R.S.); (J.K.)
| | - Laercio R. Porto-Neto
- Commonwealth Scientific and Industrial Research Organization, Brisbane, QLD 4072, Australia;
| | - Cedric Gondro
- Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA;
| | - Olasege B. Shittu
- School of Chemistry and Molecular Bioscience, The University of Queensland Australia, Brisbane, QLD 4072, Australia; (M.S.T.); (O.B.S.); (K.W.); (A.W.L.T.); (H.R.S.); (J.K.)
| | - Kimberley Wockner
- School of Chemistry and Molecular Bioscience, The University of Queensland Australia, Brisbane, QLD 4072, Australia; (M.S.T.); (O.B.S.); (K.W.); (A.W.L.T.); (H.R.S.); (J.K.)
| | - Andre W. L. Tan
- School of Chemistry and Molecular Bioscience, The University of Queensland Australia, Brisbane, QLD 4072, Australia; (M.S.T.); (O.B.S.); (K.W.); (A.W.L.T.); (H.R.S.); (J.K.)
| | - Hugo R. Smith
- School of Chemistry and Molecular Bioscience, The University of Queensland Australia, Brisbane, QLD 4072, Australia; (M.S.T.); (O.B.S.); (K.W.); (A.W.L.T.); (H.R.S.); (J.K.)
| | - Gabriela C. Gouveia
- Animal Science Department, Veterinary School, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil;
| | - Jagish Kour
- School of Chemistry and Molecular Bioscience, The University of Queensland Australia, Brisbane, QLD 4072, Australia; (M.S.T.); (O.B.S.); (K.W.); (A.W.L.T.); (H.R.S.); (J.K.)
| | - Marina R. S. Fortes
- School of Chemistry and Molecular Bioscience, The University of Queensland Australia, Brisbane, QLD 4072, Australia; (M.S.T.); (O.B.S.); (K.W.); (A.W.L.T.); (H.R.S.); (J.K.)
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26
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Canever L, Varela R, Mastella GA, Damázio LS, Valvassori SS, Quevedo JL, Zugno AI. Effects of maternal folic acid supplementation on nuclear methyltransferase activity of adult rats subjected to an animal model of schizophrenia. Int J Dev Neurosci 2021; 81:461-467. [PMID: 33786893 DOI: 10.1002/jdn.10109] [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: 11/09/2020] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Schizophrenia is considered one of the most disabling and severe human diseases worldwide. The etiology of schizophrenia is thought to be multifactorial and evidence suggests that DNA methylation can play an important role in underlying pivotal neurobiological alterations of this disorder. Some studies have demonstrated the effects of dietary supplementation as an alternative approach to the prevention of schizophrenia, including folic acid. However, no study has ever investigated the role of such supplementation in altering the DNA methylation system in the context of schizophrenia. OBJECTIVES The present study aims to investigate the effects of maternal folic acid supplementation at different doses on nuclear methyltransferase activity of adult rat offspring subjected to an animal model schizophrenia induced by ketamine. METHODS Adult female Wistar rats, (60 days old) received folic acid-deficient diet, control diet, or control diet plus folic acid supplementation (at 5, 10, or 50 mg/kg) during pregnancy and lactation. After reaching adulthood (60 days), the male offspring of these dams were subjected to the animal model of schizophrenia induced by 7 days of ketamine intraperitoneal injection (25 mg/kg). After the 7-day protocol, the activity of nuclear methyltransferase was evaluated in the brains of the offspring. RESULTS Maternal folic acid supplementation at 50 mg/kg increased methyltransferase activity in the frontal cortex, while 10 mg/kg increased methyltransferase activity in the hippocampus. In the striatum of offspring treated with ketamine, maternal deficient diet, control diet, and folic acid supplementation at 5 mg/kg decreased methyltransferase activity compared to the control group. The folic acid supplementation at 10 and 50 mg/kg reversed this ketamine effect. CONCLUSIONS Maternal FA deficiency could be related to schizophrenia pathophysiology, while FA supplementation could present a protective effect since it demonstrated persistent effects in epigenetic parameters in adult offspring.
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Affiliation(s)
- Lara Canever
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Roger Varela
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Gustavo A Mastella
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Louyse S Damázio
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - Samira S Valvassori
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
| | - João L Quevedo
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil.,Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA.,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA
| | - Alexandra I Zugno
- Translational Psychiatry Laboratory, Graduate Program in Health Sciences, University of Southern Santa Catarina (UNESC), Criciúma, Brazil
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27
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Paredes DA, Jalloh A, Catlow BJ, Jaishankar A, Seo S, Jimenez DV, Martinowich K, Diaz-Bustamante M, Hoeppner DJ, McKay RDG. Bdnf deficiency in the neonatal hippocampus contributes to global dna hypomethylation and adult behavioral changes. Brain Res 2021; 1754:147254. [PMID: 33422542 DOI: 10.1016/j.brainres.2020.147254] [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: 05/06/2020] [Revised: 10/13/2020] [Accepted: 12/18/2020] [Indexed: 10/22/2022]
Abstract
Schizophrenia is a neurodevelopmental psychiatric disorder, encompassing genetic and environmental risk factors. For several decades, investigators have been implementing the use of lesions of the neonatal rodent hippocampus to model schizophrenia, resulting in a broad spectrum of adult schizophrenia-related behavioral changes. Despite the extensive use of these proposed animal models of schizophrenia, the mechanisms by which these lesions result in schizophrenia-like behavioral alterations remain unclear. Here we provide in vivo evidence that transient pharmacological inactivation of the hippocampus via tetrodotoxin microinjections or a genetic reduction in brain derived neurotrophic factor (BDNF) protein levels (BDNF+/- rats) lead to global DNA hypomethylation, disrupted maturation of the neuronal nucleus and aberrant acoustic startle response in the adult rat. The similarity between the effects of the two treatments strongly indicate that BDNF signaling is involved in effects obtained after the TTX microinjections. These findings may shed light on the cellular mechanisms underlying the phenotypical features of neonatal transient inhibition of the hippocampus as a preclinical model of schizophrenia and suggest that BDNF signaling represents a target pathway for development of novel treatment therapies.
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Affiliation(s)
- Daniel A Paredes
- Knoebel Institute for Healthy Aging, University of Denver, Denver, CO, USA; Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA; Department of Neurology, Johns Hopkins University, Baltimore, MD, USA.
| | - Ahmad Jalloh
- Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA; Molecular Pharmacology & Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Briony J Catlow
- Knoebel Institute for Healthy Aging, University of Denver, Denver, CO, USA; Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA
| | - Amritha Jaishankar
- Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA
| | - Seungmae Seo
- Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA; Department of Pediatrics, Columbia University, New York, NY, USA
| | - Dennisse V Jimenez
- Knoebel Institute for Healthy Aging, University of Denver, Denver, CO, USA
| | - Keri Martinowich
- Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA
| | - Marcelo Diaz-Bustamante
- Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA; Department of Physiology, Johns Hopkins University, Baltimore, MD, USA
| | - Daniel J Hoeppner
- Lieber Institute for Brain Development, Johns Hopkins Medical Campus, Baltimore, MD, USA
| | - Ronald D G McKay
- Knoebel Institute for Healthy Aging, University of Denver, Denver, CO, USA
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Wagner NR, MacDonald JL. Atypical Neocortical Development in the Cited2 Conditional Knockout Leads to Behavioral Deficits Associated with Neurodevelopmental Disorders. Neuroscience 2020; 455:65-78. [PMID: 33346116 DOI: 10.1016/j.neuroscience.2020.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 11/13/2020] [Accepted: 12/03/2020] [Indexed: 02/07/2023]
Abstract
The mammalian neocortex develops from a single layer of neuroepithelial cells to form a six-layer heterogeneous mosaic of differentiated neurons and glial cells. This process requires a complex choreography of temporally and spatially restricted transcription factors and epigenetic regulators. Even subtle disruptions in this regulation can alter the way the neocortex forms and functions, leading to a neurodevelopmental disorder. One epigenetic regulator that is essential for the precise development of the neocortex is CITED2 (CBP/p300 Interacting Transactivator with ED-rich termini). Cited2 is highly expressed by intermediate progenitor cells in the subventricular zone during the generation of the superficial layers of the neocortex. A forebrain-specific conditional knockout of Cited2 (cKO) exhibits reduced proliferation of intermediate progenitor cells embryonically, leading to reduced thickness of the superficial layers and reduced corpus callosum (CC) volume postnatally. Further, the Cited2 cKO display disruptions in balanced neocortical arealization, with a specific reduction in the somatosensory neocortical length, and dysregulation of precise, area-specific neuronal connectivity. Here, we explore the behavioral consequences resulting from this aberrant neocortical development. We demonstrate that Cited2 cKO mice display decreased maternal separation-induced ultrasonic vocalizations (USVs) as neonates, and an increase in rearing behavior and lack of habituation following repeated acoustic startle as adults. They do not display alterations in anxiety-like behavior, overall locomotor activity, or social interactions. Together with the morphological, molecular, and connectivity disruptions, these results identify the Cited2 cKO neocortex as an ideal system to study mechanisms underlying neurodevelopmental and neuroanatomical disruptions with relevance to human neurodevelopmental disorders.
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Affiliation(s)
- Nikolaus R Wagner
- Department of Biology, Program in Neuroscience, Syracuse University, Syracuse NY, United States
| | - Jessica L MacDonald
- Department of Biology, Program in Neuroscience, Syracuse University, Syracuse NY, United States.
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29
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Fauque P, De Mouzon J, Devaux A, Epelboin S, Gervoise-Boyer MJ, Levy R, Valentin M, Viot G, Bergère A, De Vienne C, Jonveaux P, Pessione F. Reproductive technologies, female infertility, and the risk of imprinting-related disorders. Clin Epigenetics 2020; 12:191. [PMID: 33308308 PMCID: PMC7731556 DOI: 10.1186/s13148-020-00986-3] [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] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/23/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Epidemiological studies suggest that singletons born from assisted reproductive technologies (ART) have a high risk of adverse perinatal outcomes, specifically for imprinting disorders. Because ART processes take place at times when epigenetic reprogramming/imprinting are occurring, there is concern that ART can affect genomic imprints. However, little is currently known about the risk of imprinting defects according to the type of ART or the type of underlying female infertility. From the French national health database, a cohort of 3,501,495 singletons born over a 5-year period (2013-2017) following fresh embryo or frozen embryo transfers (fresh-ET or FET from in vitro fertilization), intrauterine insemination, or natural conception was followed up to early childhood. Based on clinical features, several syndromes/diseases involving imprinted genes were monitored. The effects of ART conception and the underlying cause of female infertility were assessed. RESULTS Compared with infants conceived naturally, children born after fresh-ET had a higher prevalence of imprinting-related diseases, with an aOR of 1.43 [95% CI 1.13-1.81, p = 0.003]. Namely, we observed an increased risk of neonatal diabetes mellitus (1.96 aOR [95% CI 1.43-2.70], p < 0.001). There was an overall independent increase in risk of imprinting diseases for children with mothers diagnosed with endometriosis (1.38 aOR [95% CI 1.06-1.80], p = 0.02). Young and advanced maternal age, primiparity, obesity, smoking, and history of high blood pressure or diabetes were also associated with high global risk. CONCLUSIONS This prospective epidemiological study showed that the risk of clinically diagnosed imprinting-related diseases is increased in children conceived after fresh embryo transfers or from mothers with endometriosis. The increased perturbations in genomic imprinting could be caused by controlled ovarian hyperstimulation and potentially endometriosis through the impairment of endometrial receptivity and placentation, leading to epigenetic feto-placental changes. Further studies are now needed to improve understanding of the underlying molecular mechanisms (i.e. genetic or epigenetic causes).
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Affiliation(s)
- Patricia Fauque
- CHU Dijon Bourgogne, Laboratoire de Biologie de la Reproduction - CECOS - Université Bourgogne Franche-Comté - INSERM UMR1231, Dijon, France.
| | | | - Aviva Devaux
- Centre d'assistance medicale à la procreation, biologie de la reproduction, CHU Amiens, Amiens, France
| | - Sylvie Epelboin
- Centre d'assistance medicale à la procreation, gynécologie obstétrique, médecine de la reproduction, Université Paris 7 Diderot, groupe hospitalier Bichat Claude-Bernard, AP-HP, Paris, France
| | | | - Rachel Levy
- Sorbonne Université, Saint Antoine Research Center, INSERM équipe Lipodystrophies genetiques et acquises, Service de biologie de la reproduction-CECOS, Hôpital Tenon, AP-HP, 75012, Paris, France
| | - Morgane Valentin
- Diagnostic antenatal, gynécologie obstétrique, Université Paris 7 Diderot, groupe hospitalier Bichat Claude-Bernard, AP-HP, Paris, France
| | - Géraldine Viot
- Unité de Génétique Clinique de La Muette, 50 rue Nicolo, 75116, Paris, France
| | - Arianne Bergère
- Agence de la Biomédecine, 1 avenue du stade de France, 93212, La Plaine Saint Denis, France
| | - Claire De Vienne
- Agence de la Biomédecine, 1 avenue du stade de France, 93212, La Plaine Saint Denis, France
| | - Philippe Jonveaux
- Agence de la Biomédecine, 1 avenue du stade de France, 93212, La Plaine Saint Denis, France
| | - Fabienne Pessione
- Agence de la Biomédecine, 1 avenue du stade de France, 93212, La Plaine Saint Denis, France
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30
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Brown LL, Cohen BE, Edwards E, Gustin CE, Noreen Z. Physiological Need for Calcium, Iron, and Folic Acid for Women of Various Subpopulations During Pregnancy and Beyond. J Womens Health (Larchmt) 2020; 30:207-211. [PMID: 33164624 PMCID: PMC8020528 DOI: 10.1089/jwh.2020.8873] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Women tend to supplement their diets with multivitamin/mineral (MVM) supplements more often than men, and reports indicate that more than 90% of pregnant women in the United States supplement their diets with prenatal MVMs. Given the widespread use of MVMs among women and given the increasing efforts to unveil the importance of phenotype-specific health determinants, it seems imperative to review what is known about variations in nutrient physiology among women from different ethnic and racial groups and at different reproductive stages of life. In this study, we embark on an assessment of the scientific evidence and knowledge gaps that impact the precise determination of nutrient levels (specifically calcium, iron, and folic acid) that confer benefits to various subpopulations of women in the United States.
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Affiliation(s)
- LaVerne L Brown
- Office of Dietary Supplements, National Institutes of Health, Bethesda, Maryland, USA
| | - Barbara E Cohen
- Office of Dietary Supplements, National Institutes of Health, Bethesda, Maryland, USA
| | - Emmeline Edwards
- National Center for Complementary and Integrative Health, Division of Extramural Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Courtney E Gustin
- Office of Women's Health, U.S. Department of Health and Human Services, Rockville, Maryland, USA
| | - Zara Noreen
- Office of Research on Women's Health, National Institutes of Health, Bethesda, Maryland, USA
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Hu J, Cao S, Zhang Z, Wang L, Wang D, Wu Q, Li L. Effects of caffeic acid on epigenetics in the brain of rats with chronic unpredictable mild stress. Mol Med Rep 2020; 22:5358-5368. [PMID: 33173990 PMCID: PMC7647007 DOI: 10.3892/mmr.2020.11609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 09/11/2020] [Indexed: 12/16/2022] Open
Abstract
The present study hypothesized that caffeic acid (3,4-dihydroxycinnamic acid; CaA) may exert antidepressant-like effects in rats with chronic unpredictable mild stress via epigenetic mechanisms, such as DNA methylation and hydroxymethylation. The chronic unpredictable mild stress (CUMS) model was used to analyze the effects of CaA on behavioral phenotypes, and to evaluate the distribution of 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) in the hippocampus and prefrontal cortex using immunohistochemistry and immunofluorescence. mRNA levels of the genes encoding brain-derived neurotropic factor (BDNF) and catechol-O-methyltransferase (COMT), and key enzymes regulating DNA methylation [DNA methyltransferase (DNMT)1 and DNMT3A] and hydroxymethylation [Ten-eleven translocation (TET)1-3] were examined using quantitative (q)PCR. Furthermore, enrichment of 5mC and 5hmC at the promotor regions of the Bdnf and Comt genes was quantified using chromatin immunoprecipitation-qPCR. Behavioral data showed that CaA exerted a slight antidepressant-like effect. Bdnf and Comt genes showed differential expression patterns due to CUMS. CaA intervention induced different Dnmt1/Dnmt3a and Tet1/Tet2 mRNA levels in the hippocampus and prefrontal cortex, respectively. CaA regulated the ratio of 5mC/5hmC at the promotor region of the Bdnf and Comt genes and therefore influenced gene expression, which may be a valuable therapeutic option for major depressive disorder (MDD). In conclusion, there were epigenetic changes in the hippocampus and prefrontal cortex in CUMS rats, and CaA may function as a modulator of DNA methylation to regulate gene transcription, thus providing a mechanistic basis for the use of this phytochemical agent in the treatment of MDD.
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Affiliation(s)
- Jinye Hu
- Department of Health Inspection and Quarantine and Ministry of Education Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Shuyuan Cao
- Department of Health Inspection and Quarantine and Ministry of Education Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Zhan Zhang
- Department of Health Inspection and Quarantine and Ministry of Education Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Li Wang
- Department of Health Inspection and Quarantine and Ministry of Education Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Di Wang
- Department of Health Inspection and Quarantine and Ministry of Education Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Qian Wu
- Department of Health Inspection and Quarantine and Ministry of Education Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Lei Li
- Department of Health Inspection and Quarantine and Ministry of Education Key Lab for Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
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32
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Cheroni C, Caporale N, Testa G. Autism spectrum disorder at the crossroad between genes and environment: contributions, convergences, and interactions in ASD developmental pathophysiology. Mol Autism 2020; 11:69. [PMID: 32912338 PMCID: PMC7488083 DOI: 10.1186/s13229-020-00370-1] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 08/07/2020] [Indexed: 12/12/2022] Open
Abstract
The complex pathophysiology of autism spectrum disorder encompasses interactions between genetic and environmental factors. On the one hand, hundreds of genes, converging at the functional level on selective biological domains such as epigenetic regulation and synaptic function, have been identified to be either causative or risk factors of autism. On the other hand, exposure to chemicals that are widespread in the environment, such as endocrine disruptors, has been associated with adverse effects on human health, including neurodevelopmental disorders. Interestingly, experimental results suggest an overlap in the regulatory pathways perturbed by genetic mutations and environmental factors, depicting convergences and complex interplays between genetic susceptibility and toxic insults. The pervasive nature of chemical exposure poses pivotal challenges for neurotoxicological studies, regulatory agencies, and policy makers. This highlights an emerging need of developing new integrative models, including biomonitoring, epidemiology, experimental, and computational tools, able to capture real-life scenarios encompassing the interaction between chronic exposure to mixture of substances and individuals' genetic backgrounds. In this review, we address the intertwined roles of genetic lesions and environmental insults. Specifically, we outline the transformative potential of stem cell models, coupled with omics analytical approaches at increasingly single cell resolution, as converging tools to experimentally dissect the pathogenic mechanisms underlying neurodevelopmental disorders, as well as to improve developmental neurotoxicology risk assessment.
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Affiliation(s)
- Cristina Cheroni
- High Definition Disease Modelling Lab, Stem Cell and Organoid Epigenetics, IEO, European Institute of Oncology, IRCCS, Milan, Italy.
- Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy.
| | - Nicolò Caporale
- High Definition Disease Modelling Lab, Stem Cell and Organoid Epigenetics, IEO, European Institute of Oncology, IRCCS, Milan, Italy.
- Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy.
- Human Technopole, Via Cristina Belgioioso 171, Milan, Italy.
| | - Giuseppe Testa
- High Definition Disease Modelling Lab, Stem Cell and Organoid Epigenetics, IEO, European Institute of Oncology, IRCCS, Milan, Italy.
- Department of Oncology and Hemato-oncology, University of Milan, Milan, Italy.
- Human Technopole, Via Cristina Belgioioso 171, Milan, Italy.
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33
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Saxena R, Babadi M, Namvarhaghighi H, Roullet FI. Role of environmental factors and epigenetics in autism spectrum disorders. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2020; 173:35-60. [PMID: 32711816 DOI: 10.1016/bs.pmbts.2020.05.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder thought to be caused by predisposing high-risk genes that may be altered during the early development by environmental factors. The impact of maternal challenges during pregnancy on the prevalence of ASD has been widely studied in clinical and animal studies. Here, we review some clinical and pre-clinical evidence that links environmental factors (i.e., infection, air pollution, pesticides, valproic acid and folic acid) and the risk of ASD. Additionally, certain prenatal environmental challenges such as the valproate and folate prenatal exposures allow us to study mechanisms possibly linked to the etiology of ASD, for instance the epigenetic processes. These mechanistic pathways are also presented and discussed in this chapter.
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Affiliation(s)
- Roheeni Saxena
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY, United States
| | - Melika Babadi
- School of Interdisciplinary Science, McMaster University, Hamilton, ON, Canada
| | | | - Florence I Roullet
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada.
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34
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Amenyah SD, McMahon A, Ward M, Deane J, McNulty H, Hughes CF, Strain JJ, Horigan G, Purvis J, Walsh CP, Lees-Murdock DJ. Riboflavin supplementation alters global and gene-specific DNA methylation in adults with the MTHFR 677 TT genotype. Biochimie 2020; 173:17-26. [PMID: 32334045 DOI: 10.1016/j.biochi.2020.04.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 04/03/2020] [Accepted: 04/10/2020] [Indexed: 12/12/2022]
Abstract
DNA methylation is important in regulating gene expression and genomic stability while aberrant DNA methylation is associated with disease. Riboflavin (FAD) is a cofactor for methylenetetrahydrofolate reductase (MTHFR), a critical enzyme in folate recycling, which generates methyl groups for homocysteine remethylation to methionine, the pre-cursor to the universal methyl donor S-adenosylmethionine (SAM). A polymorphism (C677T) in MTHFR results in decreased MTHFR activity and increased homocysteine concentration. Previous studies demonstrated that riboflavin modulates this phenotype in homozygous adults (MTHFR 677 TT genotype), however, DNA methylation was not considered. This study examined DNA methylation, globally and at key MTHFR regulatory sites, in adults stratified by MTHFR genotype and the effect of riboflavin supplementation on DNA methylation in individuals with the 677 TT genotype. Samples were accessed from participants, screened for the MTHFR C677T polymorphism, who participated in observational (n = 80) and targeted riboflavin (1.6 mg/day) RCTs (n = 80). DNA methylation at LINE-1 and key regulatory regions of the MTHFR locus were analysed by pyrosequencing in peripheral blood leukocytes. LINE-1 (+1.6%; p = 0.011) and MTHFR south shelf (+4.7%, p < 0.001) were significantly hypermethylated in individuals with the MTHFR 677 TT compared to CC genotype. Riboflavin supplementation resulted in decreased global methylation, albeit only significant at one CpG. A significant reduction in DNA methylation at the MTHFR north shore (-1.2%, p < 0.001) was also observed in TT adults following intervention with riboflavin. This provides the first RCT evidence that DNA methylation may be modulated by riboflavin in adults with the MTHFR 677 TT genotype.
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Affiliation(s)
- Sophia D Amenyah
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, United Kingdom; Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Amy McMahon
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Mary Ward
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Jennifer Deane
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Catherine F Hughes
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - J J Strain
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Geraldine Horigan
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - John Purvis
- Department of Cardiology, Altnagelvin Area Hospital, Londonderry, Northern Ireland, United Kingdom
| | - Colum P Walsh
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Diane J Lees-Murdock
- Genomic Medicine Research Group, Ulster University, Coleraine, Northern Ireland, United Kingdom.
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35
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Affiliation(s)
- Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
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36
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Buck JM, O'Neill HC, Stitzel JA. Developmental nicotine exposure engenders intergenerational downregulation and aberrant posttranslational modification of cardinal epigenetic factors in the frontal cortices, striata, and hippocampi of adolescent mice. Epigenetics Chromatin 2020; 13:13. [PMID: 32138755 PMCID: PMC7059320 DOI: 10.1186/s13072-020-00332-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 02/19/2020] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Maternal smoking of traditional or electronic cigarettes during pregnancy, which constitutes developmental nicotine exposure (DNE), heightens the risk of neurodevelopmental disorders including ADHD, autism, and schizophrenia in children. Modeling the intergenerationally transmissible impacts of smoking during pregnancy, we previously demonstrated that both the first- and second-generation adolescent offspring of nicotine-exposed female mice exhibit enhanced nicotine preference, hyperactivity and risk-taking behaviors, aberrant rhythmicity of home cage activity, nicotinic acetylcholine receptor and dopamine transporter dysfunction, impaired furin-mediated proBDNF proteolysis, hypocorticosteronemia-related glucocorticoid receptor hypoactivity, and global DNA hypomethylation in the frontal cortices and striata. This ensemble of multigenerational DNE-induced behavioral, neuropharmacological, neurotrophic, neuroendocrine, and DNA methylomic anomalies recapitulates the pathosymptomatology of neurodevelopmental disorders such as ADHD, autism, and schizophrenia. Further probing the epigenetic bases of DNE-induced multigenerational phenotypic aberrations, the present study examined the expression and phosphorylation of key epigenetic factors via an array of immunoblot experiments. RESULTS Data indicate that DNE confers intergenerational deficits in corticostriatal DNA methyltransferase 3A (DNMT3A) expression accompanied by downregulation of methyl-CpG-binding protein 2 (MeCP2) and histone deacetylase 2 (HDAC2) in the frontal cortices and hippocampi, while the expression of ten-eleven translocase methylcytosine dioxygenase 2 (TET2) is unaltered. Moreover, DNE evokes multigenerational abnormalities in HDAC2 (Ser394) but not MeCP2 (Ser421) phosphorylation in the frontal cortices, striata, and hippocampi. CONCLUSIONS In light of the extensive gene regulatory roles of DNMT3A, MeCP2, and HDAC2, the findings of this study that DNE elicits downregulation and aberrant posttranslational modification of these factors in both first- and second-generation DNE mice suggest that epigenetic perturbations may constitute a mechanistic hub for the intergenerational transmission of DNE-induced neurodevelopmental disorder-like phenotypes.
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Affiliation(s)
- Jordan M Buck
- Institute for Behavioral Genetics, University of Colorado, 1480 30th Street, Boulder, CO, 80309-0447, USA.
- Department of Integrative Physiology, University of Colorado, Boulder, USA.
| | - Heidi C O'Neill
- Institute for Behavioral Genetics, University of Colorado, 1480 30th Street, Boulder, CO, 80309-0447, USA
| | - Jerry A Stitzel
- Institute for Behavioral Genetics, University of Colorado, 1480 30th Street, Boulder, CO, 80309-0447, USA
- Department of Integrative Physiology, University of Colorado, Boulder, USA
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37
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White TJH. Brain Development and Stochastic Processes During Prenatal and Early Life: You Can't Lose It if You've Never Had It; But It's Better to Have It and Lose It, Than Never to Have Had It at All. J Am Acad Child Adolesc Psychiatry 2019; 58:1042-1050. [PMID: 31327672 DOI: 10.1016/j.jaac.2019.02.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 02/04/2019] [Accepted: 02/22/2019] [Indexed: 11/29/2022]
Abstract
Brain development, although largely driven by genetic processes, also is influenced by environmental factors. However, there has been little discussion in the psychiatric literature on the role of stochastic, or chance, events that take place during neurodevelopment. Studies suggest that the brain capitalizes on and regulates the extent of stochastic processes during development. Furthermore, because neurodevelopment is influenced by environmental factors, there is emerging evidence that fostering those positive environmental factors during prenatal and early life could optimize neurodevelopment and provide greater resilience, including those potentially resulting from stochastic processes. Evidence for the role of environmental factors in optimizing early brain development is supported by work in large population-based studies of child development, randomized control trials in high-risk populations, and early-life adoption studies. The public health message is that creating an environment that fosters optimal brain development during prenatal and early life could prevent psychopathology and provide the developing brain the best chance against negative stochastic processes and potential stressors that are inevitable later in life.
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Affiliation(s)
- Tonya J H White
- Erasmus University Medical Centre, Rotterdam, The Netherlands.
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38
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Muehlmann AM, Bliznyuk N, Duerr I, Yang TP, Lewis MH. Early exposure to a methyl donor supplemented diet and the development of repetitive motor behavior in a mouse model. Dev Psychobiol 2019; 62:77-87. [DOI: 10.1002/dev.21914] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 07/25/2019] [Accepted: 08/06/2019] [Indexed: 12/11/2022]
Affiliation(s)
| | - Nikolay Bliznyuk
- Department of Agricultural & Biological Engineering University of Florida Gainesville FL USA
| | - Isaac Duerr
- Department of Agricultural & Biological Engineering University of Florida Gainesville FL USA
| | - Thomas P. Yang
- Department of Biochemistry and Molecular Biology University of Florida Gainesville FL USA
| | - Mark H. Lewis
- Department of Psychiatry University of Florida Gainesville FL USA
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Robinson GHJ, Balk J, Domoney C. Improving pulse crops as a source of protein, starch and micronutrients. NUTR BULL 2019; 44:202-215. [PMID: 31598097 PMCID: PMC6772023 DOI: 10.1111/nbu.12399] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Pulse crops have been known for a long time to have beneficial nutritional profiles for human diets but have been neglected in terms of cultivation, consumption and scientific research in many parts of the world. Broad dietary shifts will be required if anthropogenic climate change is to be mitigated in the future, and pulse crops should be an important component of this change by providing an environmentally sustainable source of protein, resistant starch and micronutrients. Further enhancement of the nutritional composition of pulse crops could benefit human health, helping to alleviate micronutrient deficiencies and reduce risk of chronic diseases such as type 2 diabetes. This paper reviews current knowledge regarding the nutritional content of pea (Pisum sativum L.) and faba bean (Vicia faba L.), two major UK pulse crops, and discusses the potential for their genetic improvement.
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Affiliation(s)
- G. H. J. Robinson
- Department of Metabolic BiologyJohn Innes Centre, Norwich Research ParkNorwichUK
| | - J. Balk
- Department of Biological ChemistryJohn Innes Centre, Norwich Research ParkNorwichUK
- School of Biological SciencesUniversity of East AngliaNorwich Research ParkNorwichUK
| | - C. Domoney
- Department of Metabolic BiologyJohn Innes Centre, Norwich Research ParkNorwichUK
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40
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DNA Methylation Status in Cancer Disease: Modulations by Plant-Derived Natural Compounds and Dietary Interventions. Biomolecules 2019; 9:biom9070289. [PMID: 31323834 PMCID: PMC6680848 DOI: 10.3390/biom9070289] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 12/24/2022] Open
Abstract
The modulation of the activity of DNA methyltransferases (DNMTs) represents a crucial epigenetic mechanism affecting gene expressions or DNA repair mechanisms in the cells. Aberrant modifications in the function of DNMTs are a fundamental event and part of the pathogenesis of human cancer. Phytochemicals, which are biosynthesized in plants in the form of secondary metabolites, represent an important source of biomolecules with pleiotropic effects and thus provide a wide range of possible clinical applications. It is well documented that phytochemicals demonstrate significant anticancer properties, and in this regard, rapid development within preclinical research is encouraging. Phytochemicals affect several epigenetic molecular mechanisms, including DNA methylation patterns such as the hypermethylation of tumor-suppressor genes and the global hypomethylation of oncogenes, that are specific cellular signs of cancer development and progression. This review will focus on the latest achievements in using plant-derived compounds and plant-based diets targeting epigenetic regulators and modulators of gene transcription in preclinical and clinical research in order to generate novel anticancer drugs as sensitizers for conventional therapy or compounds suitable for the chemoprevention clinical setting in at-risk individuals. In conclusion, indisputable anticancer activities of dietary phytochemicals linked with proper regulation of DNA methylation status have been described. However, precisely designed and well-controlled clinical studies are needed to confirm their beneficial epigenetic effects after long-term consumption in humans.
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41
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Matsuda S, Baba R, Oki H, Morimoto S, Toyofuku M, Igaki S, Kamada Y, Iwasaki S, Matsumiya K, Hibino R, Kamada H, Hirakawa T, Iwatani M, Tsuchida K, Hara R, Ito M, Kimura H. T-448, a specific inhibitor of LSD1 enzyme activity, improves learning function without causing thrombocytopenia in mice. Neuropsychopharmacology 2019; 44:1505-1512. [PMID: 30580376 PMCID: PMC6785089 DOI: 10.1038/s41386-018-0300-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 10/29/2018] [Accepted: 12/14/2018] [Indexed: 12/19/2022]
Abstract
Dysregulation of histone H3 lysine 4 (H3K4) methylation has been implicated in the pathogenesis of several neurodevelopmental disorders. Targeting lysine-specific demethylase 1 (LSD1), an H3K4 demethylase, is therefore a promising approach to treat these disorders. However, LSD1 forms complexes with cofactors including growth factor independent 1B (GFI1B), a critical regulator of hematopoietic differentiation. Known tranylcypromine-based irreversible LSD1 inhibitors bind to coenzyme flavin adenine dinucleotide (FAD) and disrupt the LSD1-GFI1B complex, which is associated with hematotoxicity such as thrombocytopenia, representing a major hurdle in the development of LSD1 inhibitors as therapeutic agents. To discover LSD1 inhibitors with potent epigenetic modulation and lower risk of hematotoxicity, we screened small molecules that enhance H3K4 methylation by the inhibition of LSD1 enzyme activity in primary cultured rat neurons but have little impact on LSD1-GFI1B complex in human TF-1a erythroblasts. Here we report the discovery of a specific inhibitor of LSD1 enzyme activity, T-448 (3-((1S,2R)-2-(cyclobutylamino)cyclopropyl)-N-(5-methyl-1,3,4-thiadiazol-2-yl)benzamide fumarate). T-448 has minimal impact on the LSD1-GFI1B complex and a superior hematological safety profile in mice via the generation of a compact formyl-FAD adduct. T-448 increased brain H3K4 methylation and partially restored learning function in mice with NMDA receptor hypofunction. T-448-type LSD1 inhibitors with improved safety profiles may provide unique therapeutic approaches for central nervous system disorders associated with epigenetic dysregulation.
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Affiliation(s)
- Satoru Matsuda
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Rina Baba
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Hideyuki Oki
- 0000 0001 0673 6017grid.419841.1Biomolecular Research Laboratories, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Shinji Morimoto
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Masashi Toyofuku
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Shigeru Igaki
- 0000 0001 0673 6017grid.419841.1Biomolecular Research Laboratories, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Yusuke Kamada
- 0000 0001 0673 6017grid.419841.1Biomolecular Research Laboratories, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Shinji Iwasaki
- 0000 0001 0673 6017grid.419841.1Drug Metabolism and Pharmacokinetics Research Laboratories, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Kota Matsumiya
- 0000 0001 0673 6017grid.419841.1Drug Metabolism and Pharmacokinetics Research Laboratories, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Ryosuke Hibino
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Hiroko Kamada
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Takeshi Hirakawa
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Misa Iwatani
- 0000 0001 0673 6017grid.419841.1Biomolecular Research Laboratories, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Ken Tsuchida
- 0000 0001 0673 6017grid.419841.1Extra Value Generation Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Ryujiro Hara
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Mitsuhiro Ito
- 0000 0001 0673 6017grid.419841.1Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa 251-8555 Japan
| | - Haruhide Kimura
- Neuroscience Drug Discovery Unit, Research, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa, 251-8555, Japan.
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Irwin RE, Thursby SJ, Ondičová M, Pentieva K, McNulty H, Richmond RC, Caffrey A, Lees-Murdock DJ, McLaughlin M, Cassidy T, Suderman M, Relton CL, Walsh CP. A randomized controlled trial of folic acid intervention in pregnancy highlights a putative methylation-regulated control element at ZFP57. Clin Epigenetics 2019; 11:31. [PMID: 30777123 PMCID: PMC6380035 DOI: 10.1186/s13148-019-0618-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Accepted: 01/21/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Maternal blood folate concentrations during pregnancy have been previously linked with DNA methylation patterns, but this has been done predominantly through observational studies. We showed recently in an epigenetic analysis of the first randomized controlled trial (RCT) of folic acid supplementation specifically in the second and third trimesters (the EpiFASSTT trial) that methylation at some imprinted genes was altered in cord blood samples in response to treatment. Here, we report on epigenome-wide screening using the Illumina EPIC array (~ 850,000 sites) in these same samples (n = 86). RESULTS The top-ranked differentially methylated promoter region (DMR) showed a gain in methylation with folic acid (FA) and was located upstream of the imprint regulator ZFP57. Differences in methylation in cord blood between placebo and folic acid treatment groups at this DMR were verified using pyrosequencing. The DMR also gains methylation in maternal blood in response to FA supplementation. We also found evidence of differential methylation at this region in an independent RCT cohort, the AFAST trial. By altering methylation at this region in two model systems in vitro, we further demonstrated that it was associated with ZFP57 transcription levels. CONCLUSIONS These results strengthen the link between folic acid supplementation during later pregnancy and epigenetic changes and identify a novel mechanism for regulation of ZFP57. This trial was registered 15 May 2013 at www.isrctn.com as ISRCTN19917787.
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Affiliation(s)
- Rachelle E. Irwin
- Genomic Medicine Research Group, School of Biomedical Sciences, Ulster University, Coleraine BT52 1SA, UK
| | - Sara-Jayne Thursby
- Genomic Medicine Research Group, School of Biomedical Sciences, Ulster University, Coleraine BT52 1SA, UK
| | - Miroslava Ondičová
- Genomic Medicine Research Group, School of Biomedical Sciences, Ulster University, Coleraine BT52 1SA, UK
| | - Kristina Pentieva
- Nutrition Innovation Centre for Food and Health, School of Biomedical Sciences, Ulster University, Coleraine, UK
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health, School of Biomedical Sciences, Ulster University, Coleraine, UK
| | - Rebecca C. Richmond
- MRC Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - Aoife Caffrey
- Nutrition Innovation Centre for Food and Health, School of Biomedical Sciences, Ulster University, Coleraine, UK
| | - Diane J. Lees-Murdock
- Genomic Medicine Research Group, School of Biomedical Sciences, Ulster University, Coleraine BT52 1SA, UK
| | | | - Tony Cassidy
- Psychology Institute, Ulster University, Coleraine, UK
| | - Matthew Suderman
- MRC Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - Caroline L. Relton
- MRC Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - Colum P. Walsh
- Genomic Medicine Research Group, School of Biomedical Sciences, Ulster University, Coleraine BT52 1SA, UK
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43
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Abstract
Periconceptional folic acid (FA) is known to have a protective effect in the prevention of neural tube defects (NTD), leading to global recommendations for FA supplementation before and in early pregnancy. Maternal folate throughout pregnancy may have other roles in offspring health, including neurodevelopment and cognitive performance in childhood. Folate is essential for C1 metabolism, a network of pathways involved in several biological processes including nucleotide synthesis, DNA repair and methylation reactions. The evidence reviewed here shows a conclusive role for offspring health of maternal folate nutrition in early pregnancy and probable benefits in later pregnancy. Folate-mediated epigenetic changes in genes related to brain development and function offer a plausible biological basis to link maternal folate with effects in offspring brain, albeit this research is in its infancy. Mandatory FA fortification of food has proven to be highly effective in decreasing NTD cases in populations where it has been implemented, but this policy is controversial owing to concerns related to potential adverse effects of over-exposure to FA. In the absence of population-wide fortification, and given the generally poor compliance with current FA recommendations, optimising folate status of mothers in very early pregnancy for protection against NTD remains challenging. Thus, current policy in the UK, Ireland and elsewhere in Europe for the prevention of NTD (based on periconceptional FA supplementation only), has proven to be largely ineffective. This review addresses the evidence and the controversies that surround this area, as well as identifying the challenges in translating policy into practice.
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Lintas C. Linking genetics to epigenetics: The role of folate and folate-related pathways in neurodevelopmental disorders. Clin Genet 2018; 95:241-252. [PMID: 30047142 DOI: 10.1111/cge.13421] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/09/2018] [Accepted: 07/21/2018] [Indexed: 12/12/2022]
Abstract
There is growing evidence that epigenetic dysregulation plays a role in neurodevelopmental disorders. In humans, folate is one of the main donors of the methyl group required for the synthesis of S-adenosylmethionine, which in turn is needed for DNA and histone methylation as key neurodevelopment processes. Folate deficiency during pregnancy has been correlated with neural tube defects and with a higher incidence of neurocognitive and/or neurobehavioral deficits. A similar outcome may be exerted by gene polymorphisms in folate or folate-related pathways. This has been documented by numerous case/control association studies performed on neurodevelopmental disorders such as autism spectrum disorder and attention deficit hyperactivity disorder. In this regard, the folate cycle represents a "perfect model" of how genetics influences epigenetics. Gene variants in folate and folate-related pathways can be considered risk factors for neurodevelopmental disorders and should therefore be assessed by genetic testing in pregnant women. High-risk women should be considered for folate supplementation during pregnancy. Here, we review all published case/control association studies on gene polymorphisms in folate and folate-related pathways performed on neurodevelopmental disorders, provide an overview of neurodevelopment and DNA methylation changes occurring at this time, and describe the biological basis of neurodevelopmental disorders and recent evidence of their epigenetic dysregulation.
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Affiliation(s)
- C Lintas
- Service for Neurodevelopmental Disorders, Laboratory of Molecular Psychiatry and Neurogenetics, Department of Medicine, University Campus Bio-Medico, Rome, Italy
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45
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Population DNA methylation studies in the Developmental Origins of Health and Disease (DOHaD) framework. J Dev Orig Health Dis 2018; 10:306-313. [PMID: 30101736 DOI: 10.1017/s2040174418000442] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Epigenetic changes represent a potential mechanism underlying associations of early-life exposures and later life health outcomes. Population-based cohort studies starting in early life are an attractive framework to study the role of such changes. DNA methylation is the most studied epigenetic mechanism in population research. We discuss the application of DNA methylation in early-life population studies, some recent findings, key challenges and recommendations for future research. Studies into DNA methylation within the Developmental Origins of Health and Disease framework generally either explore associations between prenatal exposures and offspring DNA methylation or associations between offspring DNA methylation in early life and later health outcomes. Only a few studies to date have integrated prospective exposure, epigenetic and phenotypic data in order to explicitly test the role of DNA methylation as a potential biological mediator of environmental effects on health outcomes. Population epigenetics is an emerging field which has challenges in terms of methodology and interpretation of the data. Key challenges include tissue specificity, cell type adjustment, issues of power and comparability of findings, genetic influences, and exploring causality and functional consequences. Ongoing studies are working on addressing these issues. Large collaborative efforts of prospective cohorts are emerging, with clear benefits in terms of optimizing power and use of resources, and in advancing methodology. In the future, multidisciplinary approaches, within and beyond longitudinal birth and preconception cohorts will advance this complex, but highly promising, the field of research.
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46
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Affiliation(s)
- Joshua L. Roffman
- Department of Psychiatry, Massachusetts General Hospital, Charlestown
- Harvard Medical School, Boston, Massachusetts
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47
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Affiliation(s)
- Rose Schrott
- University Program in Environmental Health, Duke Nicholas School of the Environment, and Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, NC
| | - Susan K Murphy
- University Program in Environmental Health, Duke Nicholas School of the Environment, and Division of Reproductive Sciences, Department of Obstetrics and Gynecology, Duke University School of Medicine, Durham, NC,Address correspondence to SKM (e-mail: )
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48
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Caffrey A, Irwin RE, McNulty H, Strain JJ, Lees-Murdock DJ, McNulty BA, Ward M, Walsh CP, Pentieva K. Gene-specific DNA methylation in newborns in response to folic acid supplementation during the second and third trimesters of pregnancy: epigenetic analysis from a randomized controlled trial. Am J Clin Nutr 2018; 107:566-575. [PMID: 29635492 DOI: 10.1093/ajcn/nqx069] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Accepted: 12/08/2017] [Indexed: 12/21/2022] Open
Abstract
Background Emerging evidence suggests that maternal folate status can impact cognitive development in childhood. Folate-dependent DNA methylation may provide a biological mechanism to link folate status during pregnancy with cognition in the offspring. Objective The objective was to investigate the effect of continued folic acid (FA) supplementation beyond the first trimester of pregnancy on DNA methylation in cord blood of epigenetically controlled genes related to brain development and function. Design Using available cord blood samples (n = 86) from the Folic Acid Supplementation in the Second and Third Trimesters (FASSTT) trial in pregnancy, we applied pyrosequencing techniques to analyze cord blood DNA at 9 candidate loci known to be regulated by methylation, including some previously implicated in observational studies: the widely dispersed retrotransposon long interspersed nuclear element-1 (LINE-1) and 8 single-copy loci (RBM46, PEG3, IGF2, GRB10, BDNF, GRIN3B, OPCML, and APC2). Results The newborns of mothers who received ongoing FA (400 µg/d) through the second and third trimesters, compared with placebo, had significantly lower overall DNA methylation levels at LINE-1 (56.3% ± 1.7% compared with 57.2% ± 2.1%; P = 0.024), IFG2 (48.9% ± 4.4% compared with 51.2% ± 5.1%; P = 0.021), and BDNF (2.7% ± 0.7% compared with 3.1% ± 0.8%; P = 0.003). The effect of FA treatment on DNA methylation was significant only in female offspring for IGF2 (P = 0.028) and only in males for BDNF (P = 0.012). For GRB10 and GRIN3B, we detected no effect on overall methylation; however, individual cytosine-phosphate-guanine sites showed significant DNA methylation changes in response to FA. Conclusions Continued supplementation with FA through trimesters 2 and 3 of pregnancy results in significant changes in DNA methylation in cord blood of genes related to brain development. The findings offer a potential biological mechanism linking maternal folate status with neurodevelopment of the offspring, but this requires further investigation using a genome-wide approach. This trial was registered at www.isrctn.com as ISRCTN19917787.
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Affiliation(s)
- Aoife Caffrey
- Nutrition Innovation Centre for Food and Health and Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Rachelle E Irwin
- Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Helene McNulty
- Nutrition Innovation Centre for Food and Health and Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - J J Strain
- Nutrition Innovation Centre for Food and Health and Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Diane J Lees-Murdock
- Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Breige A McNulty
- School of Agriculture & Food Science, University College Dublin, Dublin, Ireland
| | - Mary Ward
- Nutrition Innovation Centre for Food and Health and Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Colum P Walsh
- Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
| | - Kristina Pentieva
- Nutrition Innovation Centre for Food and Health and Genomic Medicine Group, School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland, United Kingdom
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49
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O'Neill KM, Irwin RE, Mackin SJ, Thursby SJ, Thakur A, Bertens C, Masala L, Loughery JEP, McArt DG, Walsh CP. Depletion of DNMT1 in differentiated human cells highlights key classes of sensitive genes and an interplay with polycomb repression. Epigenetics Chromatin 2018; 11:12. [PMID: 29598829 PMCID: PMC5875016 DOI: 10.1186/s13072-018-0182-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 03/21/2018] [Indexed: 11/17/2022] Open
Abstract
Background DNA methylation plays a vital role in the cell, but loss-of-function mutations of the maintenance methyltransferase DNMT1 in normal human cells are lethal, precluding target identification, and existing hypomorphic lines are tumour cells. We generated instead a hypomorphic series in normal hTERT-immortalised fibroblasts using stably integrated short hairpin RNA. Results Approximately two-thirds of sites showed demethylation as expected, with one-third showing hypermethylation, and targets were shared between the three independently derived lines. Enrichment analysis indicated significant losses at promoters and gene bodies with four gene classes most affected: (1) protocadherins, which are key to neural cell identity; (2) genes involved in fat homoeostasis/body mass determination; (3) olfactory receptors and (4) cancer/testis antigen (CTA) genes. Overall effects on transcription were relatively small in these fibroblasts, but CTA genes showed robust derepression. Comparison with siRNA-treated cells indicated that shRNA lines show substantial remethylation over time. Regions showing persistent hypomethylation in the shRNA lines were associated with polycomb repression and were derepressed on addition of an EZH2 inhibitor. Persistent hypermethylation in shRNA lines was, in contrast, associated with poised promoters. Conclusions We have assessed for the first time the effects of chronic depletion of DNMT1 in an untransformed, differentiated human cell type. Our results suggest polycomb marking blocks remethylation and indicate the sensitivity of key neural, adipose and cancer-associated genes to loss of maintenance methylation activity. Electronic supplementary material The online version of this article (10.1186/s13072-018-0182-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Karla M O'Neill
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK.,The Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast, BT9 7AE, UK
| | - Rachelle E Irwin
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK
| | - Sarah-Jayne Mackin
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK
| | - Sara-Jayne Thursby
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK
| | - Avinash Thakur
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK.,Terry Fox Laboratory, BC Cancer Research Centre, 675 West 10th Avenue, Room 13-112, Vancouver, BC, V5Z 1L3, Canada
| | - Ciske Bertens
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK.,Academie Life Science, Engineering & Design, Saxion University, M.H. Tromplaan 28, 7500, Enschede, Netherlands
| | - Laura Masala
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK.,Department of Obstetrics and Gynecology, University of Sassari, Via Vienne 2, 7100, Sassari, Italy
| | - Jayne E P Loughery
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK
| | - Darragh G McArt
- Centre for Cancer Research and Cell Biology, Queen's University Belfast, Belfast, BT9 7AE, UK
| | - Colum P Walsh
- Genomic Medicine Research Group, Centre for Molecular Biosciences, School of Biomedical Sciences, Ulster University, Cromore Road, Coleraine, BT52 1SA, UK.
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50
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Yan Z, Jiao F, Yan X, Ou H. Maternal Chronic Folate Supplementation Ameliorates Behavior Disorders Induced by Prenatal High‐Fat Diet Through Methylation Alteration of BDNF and Grin2b in Offspring Hippocampus. Mol Nutr Food Res 2017; 61. [DOI: 10.1002/mnfr.201700461] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/13/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Zhonghai Yan
- Department of MedicineColumbia University New York NY USA
| | - Fei Jiao
- Department of Biochemistry and Molecular BiologyBinzhou Medical College Yantai Shandong China
| | - Xiaoshuang Yan
- Jiangsu Provincial Key Laboratory of Molecular Biology and Translational Medicine of Malignant TumorSoochow University Suzhou China
| | - Hailong Ou
- Department of Biochemistry and Molecular BiologyGuizhou Medical University Guiyang Guizhou China
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