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Mbs GBY, Wasek B, Bottiglieri T, Malysheva O, Caudill MA, Jadavji NM. Dietary vitamin B12 deficiency impairs motor function and changes neuronal survival and choline metabolism after ischemic stroke in middle-aged male and female mice. Nutr Neurosci 2024; 27:300-309. [PMID: 36932327 DOI: 10.1080/1028415x.2023.2188639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
Abstract
Nutrition is a modifiable risk factor for ischemic stroke. As people age their ability to absorb some nutrients decreases, a primary example is vitamin B12. Older individuals with a vitamin B12 deficiency are at a higher risk for ischemic stroke and have worse stroke outcome. However, the mechanisms through which these occur remain unknown. The aim of the study was to investigate the role of vitamin B12 deficiency in ischemic stroke outcome and mechanistic changes in a mouse model. Ten-month-old male and female mice were put on control or vitamin B12 deficient diets for 4 weeks prior to and after ischemic stroke to the sensorimotor cortex. Motor function was measured, and tissues were collected to assess potential mechanisms. All deficient mice had increased levels of total homocysteine in plasma and liver tissues. After ischemic stroke, deficient mice had impaired motor function compared to control mice. There was no difference between groups in ischemic damage volume. However, within the ischemic damage region, there was an increase in total apoptosis of male deficient mice compared to controls. Furthermore, there was an increase in neuronal survival in ischemic brain tissue of the vitamin B12 deficient mice compared to controls. Additionally, there were changes in choline metabolites in ischemic brain tissue because of a vitamin B12 deficiency. The data presented in this study confirms that a vitamin B12 deficiency worsens stroke outcome in male and female mice. The mechanisms driving this change may be a result of neuronal survival and compensation in choline metabolism within the damaged brain tissue.
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Affiliation(s)
- Gyllian B Yahn Mbs
- Department of Biomedical Sciences, Midwestern University, Glendale, AZ, USA
| | - Brandi Wasek
- Center of Metabolomics, Institute of Metabolic Disease, Baylor Scott & White Research Institute, Dallas, TX, USA
| | - Teodoro Bottiglieri
- Center of Metabolomics, Institute of Metabolic Disease, Baylor Scott & White Research Institute, Dallas, TX, USA
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Nafisa M Jadavji
- Department of Biomedical Sciences, Midwestern University, Glendale, AZ, USA
- College of Veterinary Medicine, Midwestern University, Glendale, AZ, USA
- College of Osteopathic Medicine, Midwestern University, Glendale, AZ, USA
- Department of Neuroscience, Carleton University, Ottawa, Canada
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Clementson M, Hurley L, Coonrod S, Bennett C, Marella P, Pascual AS, Pull K, Wasek B, Bottiglieri T, Malysheva O, Caudill MA, Jadavji NM. Maternal dietary deficiencies in folic acid or choline worsen stroke outcomes in adult male and female mouse offspring. Neural Regen Res 2023; 18:2443-2448. [PMID: 37282475 PMCID: PMC10360112 DOI: 10.4103/1673-5374.371375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
Maternal one-carbon metabolism plays an important role in early life programming. There is a well-established connection between the fetal environment and the health status of the offspring. However, there is a knowledge gap on how maternal nutrition impacts stroke outcomes in offspring. The aim of our study was to investigate the role of maternal dietary deficiencies in folic acid or choline on stroke outcomes in 3-month-old offspring. Adult female mice were fed a folic acid-deficient diet, choline-deficient diet, or control diet 4 weeks before pregnancy. They were continued on diets during pregnancy and lactation. Male and female offspring were weaned onto a control diet and at 2 months of age were subjected to ischemic stroke within the sensorimotor cortex via photothrombotic damage. Mothers maintained on either a folic acid-deficient diet or choline-deficient diet had reduced levels of S-adenosylmethionine in the liver and S-adenosylhomocysteine in the plasma. After ischemic stroke, motor function was impaired in 3-month-old offspring from mothers receiving either a folic acid-deficient diet or choline-deficient diet compared to the animals receiving a control diet. In brain tissue, there was no difference in ischemic damage volume. When protein levels were assessed in ischemic brain tissue, there were lower levels of active caspase-3 and hypoxia-inducible factor 1α in males compared to females and betaine levels were reduced in offspring from the mothers receiving a choline-deficient diet. Our results demonstrate that a deficient maternal diet at critical time points in neurodevelopment results in worse stroke outcomes. This study emphasizes the importance of maternal diet and the impact it can have on offspring health.
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Affiliation(s)
- McCoy Clementson
- Department of Biomedical Sciences; College of Osteopathic Medicine, Midwestern University, Glendale, AZ, USA
| | - Lauren Hurley
- Department of Biomedical Sciences; College of Veterinary Medicine, Midwestern University, Glendale, AZ, USA
| | - Sarah Coonrod
- Department of Biomedical Sciences; College of Veterinary Medicine, Midwestern University, Glendale, AZ, USA
| | - Calli Bennett
- Department of Biomedical Sciences; College of Osteopathic Medicine, Midwestern University, Glendale, AZ, USA
| | - Purvaja Marella
- Department of Biomedical Sciences; College of Osteopathic Medicine, Midwestern University, Glendale, AZ, USA
| | - Agnes S Pascual
- Department of Biomedical Sciences, Midwestern University, Glendale, AZ, USA
| | - Kasey Pull
- Department of Biomedical Sciences, Midwestern University, Glendale, AZ, USA
| | - Brandi Wasek
- Center of Metabolomics, Institute of Metabolic Disease, Baylor Scott & White Research Institute, Dallas, TX, USA
| | - Teodoro Bottiglieri
- Center of Metabolomics, Institute of Metabolic Disease, Baylor Scott & White Research Institute, Dallas, TX, USA
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Nafisa M Jadavji
- Department of Biomedical Sciences; College of Osteopathic Medicine; College of Veterinary Medicine, Midwestern University, Glendale, AZ, USA; Department of Neuroscience, Carleton University, Ottawa, ON, Canada; Department of Child Health, College of Medicine - Phoenix, University of Arizona, Phoenix, AZ, USA
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Jadavji NM, Clementson M, Hurley L, Jauhal J, Coonrod S, Bennett C, Pull K, Pascual A, Wasek B, Bottiglieri T, Malysheva O, Caudill M. Abstract WP246: Ischemic Outcome In Young And Adult Offspring After Maternal Dietary Deficiencies In One-carbon Metabolites During Pregnancy And Lactation. Stroke 2023. [DOI: 10.1161/str.54.suppl_1.wp246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Maternal one-carbon metabolism, including dietary levels of folic acid and choline, play an important role in early life programming. There is a well-established connection between the fetal environment and the health status of offspring. However, there is a gap in knowledge on how maternal nutrition will affect the health status of the offspring after a cardiovascular event like ischemic stroke. The aim of our study was to investigate the role of maternal dietary deficiencies in folic acid or choline on stroke outcome in 3- and 10-month-old male and female offspring. Adult female mice were fed a folic acid deficient diet (FADD), a choline deficient diet (ChDD), or a control diet (CD) four weeks prior to pregnancy to deplete stores, they were continued on diets during pregnancy and lactation. Male and female offspring were weaned onto a control diet and at 2 or 10 months of age were subject to ischemic stroke within the sensorimotor cortex via the photothrombosis ischemic damage model. At 3 or 11 months of age, motor function was measured in offspring and tissue was collected for analysis. Mothers maintained on either a FADD or ChDD had reduced levels of
S
-adenosylmethionine in liver tissue compared to controls. In offspring after ischemic stroke, motor function was impaired in 3-month-old male and female offspring from deficient mothers compared to control diet offspring. In 11-month-old mice there was no impact of maternal diet on motor function, but we observed sex differences. Male middle-aged adult mice had worse motor function compared to female offspring. In brain tissue, there was no impact of maternal diet on ischemic damage volume in 3-month-old animals. Interestingly, maternal diet impacted ischemic damage in 10-month-old male and female offspring. Neurodegeneration and choline metabolism in ischemic brain tissue was also impacted in 3 and 11-month-old offspring. The findings of our study suggest that a maternal diet deficient in either choline or folic acid impacts stroke outcome in young animals compared to middle-aged animals. These results points to the important role of the maternal diet in early life programming, while emphasizing its effects on both fetal development and long-term cerebrovascular health.
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Affiliation(s)
| | | | | | | | | | | | - Kasey Pull
- Biomedical Sciences, Midwestern Univ, Glendale, AZ
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Swartz T, Bradford B, Malysheva O, Caudill M, Mamedova L, Estes K. Effects of dietary rumen-protected choline supplementation on colostrum yields, quality, and choline metabolites from dairy cattle. JDS Commun 2022; 3:296-300. [PMID: 36338018 PMCID: PMC9623657 DOI: 10.3168/jdsc.2021-0192] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 03/10/2022] [Indexed: 05/27/2023]
Abstract
Colostrum is a critical nutrient source that provides passive immunity to dairy calves. Choline is a trimethylated molecule that is frequently supplemented in the diet to periparturient dairy cows to support postpartum health and performance. Whereas choline and its metabolites have been characterized in milk, the effects of dietary rumen-protected choline (RPC) supplementation on choline metabolites in colostrum from dairy cattle have yet to be explored. Therefore, the objective of the present study was to assess the effects of dietary supplementation and dose of RPC on colostrum yields, quality, and choline metabolites. Parous Holstein cows were blocked by calving month and randomly assigned within block to receive 45 g/d (20.4 g/d of choline ions) of RPC (CHOL45, n = 22), 30 g/d (13.6 g/d of choline ions) of RPC (CHOL30, n = 20), or no RPC (control, n = 19) starting 24 d before expected calving. The effects of dietary supplementation and dose of RPC were assessed on colostrum yields, component yields, somatic cell score (SCS), quality (as assessed by Brix), and choline metabolites. Data were analyzed using a linear mixed model with the fixed effects of treatment, parity, and the 2-way interaction and the random effect of block. Regardless of dose, dietary RPC supplementation increased colostrum yields and protein yields. No effects of dietary RPC supplementation were found on colostrum component percentages, SCS, or colostrum quality. For choline metabolites, treatment interacted with parity for phosphocholine where colostrum from second-parity CHOL45 and CHOL30 cows had greater concentrations of phosphocholine than colostrum from second-parity control cows, but no treatment effect was seen in the colostrum from 3+ parity cows. Dietary choline supplementation, regardless of dose, increased trimethylamine N-oxide concentrations. Dietary choline supplementation did not affect the concentrations of choline, betaine, glycerophosphocholine, sphingomyelin, phosphatidylcholine, or total choline in colostrum. In conclusion, dietary choline supplementation increased phosphocholine concentrations in colostrum from second-parity cows, enhanced trimethylamine N-oxide concentrations, and increased colostrum yields without affecting colostrum quality.
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Affiliation(s)
- T.H. Swartz
- Department of Animal Science, Michigan State University, East Lansing 48824
| | - B.J. Bradford
- Department of Animal Science, Michigan State University, East Lansing 48824
| | - O. Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853
| | - M.A. Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853
| | - L.K. Mamedova
- Department of Animal Science, Michigan State University, East Lansing 48824
| | - K.A. Estes
- Balchem Corporation, New Hampton, NY 10958
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Guetterman H, Crider K, Fothergill A, Johnson C, Bose B, Rose C, Williams J, Malysheva O, Field M, Caudill M, Qi YP, Mehta S, Kuriyan R, Bonam W, Finkelstein J. Biomarkers of Choline Metabolism in Women of Reproductive Age in Southern India. Curr Dev Nutr 2022. [PMCID: PMC9194281 DOI: 10.1093/cdn/nzac074.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objectives Inadequate maternal choline intake during pregnancy has been associated with adverse pregnancy and child health outcomes – and has been identified as a potential risk factor for neural tube defects. However, there is limited data on biomarkers of choline metabolism in women of reproductive age (WRA), and few representative population-level data from India. The objective of this analysis was to examine biomarkers of choline metabolism and their correlates in WRA, as part of a population-based biomarker survey in Southern India. Methods Participants were WRA (15–40y; n = 980) who were not pregnant or lactating. Free choline, betaine, dimethylglycine, methionine, and trimethylamine N-oxide concentrations were evaluated via liquid chromatography tandem mass spectrometry. Linear regression models were used to examine sociodemographic (e.g., age, parity), dietary (e.g., frequency of animal source food intake), and anthropometric (e.g., body mass index [BMI], waist circumference, waist-hip ratio) correlates of biomarkers of choline metabolism, including betaine concentrations and betaine to choline ratio (B:C). Results Betaine concentrations (GM: 44.2 μmol/L [95% CI: 43.4, 45.0]) were 4-fold higher compared to free choline (11.1μmol/L [10.9, 11.2]) levels, with an average B:C of 4.0 [3.9, 4.1]. Increased age (β: −0.01 [SE: 0.002], P < 0.0001), multiparity (multiparous/primiparous vs. nulliparous, P < 0.0001), and increased frequency of animal source food intake (poultry, p = 0.004; red meat, p = 0.01), were associated with lower B:C. Higher BMI (betaine: β: −0.004 [SE: 0.002], p = 0.02; B:C: β: −0.02 [SE: 0.002], P < 0.0001), waist circumference (betaine: −0.002 [0.001], p = 0.02; B:C: −0.01 [0.001], P < 0.0001), and waist-hip ratio (betaine: −0.31 [0.15], p = 0.04; B:C: −1.02 [0.16], P < 0.0001), were also associated with lower betaine concentrations and B:C. Conclusions In this population, higher BMI and central adiposity were associated with lower betaine concentrations and B:C. Findings from this biomarker survey will inform prospective research on the role of choline biomarkers in the health and nutritional requirements of WRA. Funding Sources Centers for Disease Control and Prevention (5U01DD001007), University of South Carolina Disability Research and Dissemination Center; Cornell DNS; NIH T32DK007158 (HMG); NIH 5T32HD087137 (AF).
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Thomas MS, Puglisi M, Malysheva O, Caudill MA, Sholola M, Cooperstone JL, Fernandez ML. Eggs Improve Plasma Biomarkers in Patients with Metabolic Syndrome Following a Plant-Based Diet-A Randomized Crossover Study. Nutrients 2022; 14:nu14102138. [PMID: 35631279 PMCID: PMC9147178 DOI: 10.3390/nu14102138] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/16/2022] [Accepted: 05/18/2022] [Indexed: 12/12/2022] Open
Abstract
Plant-based (PB) diets are considered a healthy dietary pattern; however, eggs are not always included in this dietary regime. We hypothesized that the addition of two eggs per day would increase HDL cholesterol as well as plasma lutein, zeaxanthin and choline in individuals with metabolic syndrome (MetS). In this randomized controlled crossover intervention, we recruited 30 participants (49.3 ± 8 y) with MetS who followed a PB diet for 13 weeks. A registered dietitian advised all subjects on food selection and followed them through the intervention to ensure compliance. Participants underwent a 2-week washout with no eggs or spinach (a source of dietary lutein and zeaxanthin) and were randomly allocated to consume spinach (70 g) with either two eggs (EGG) or the equivalent amount of egg substitute (SUB) for breakfast for 4 weeks. After a 3-week washout, they were allocated the alternate breakfast. A total of 24 participants (13 women/11 men) finished the intervention. Plasma lipids, glucose, insulin, anthropometrics, plasma lutein, zeaxanthin, choline and trimethylamine oxide (TMAO) were assessed at baseline and the end of each intervention. When we compared individuals consuming the EGG versus the SUB breakfast, we observed a lower body weight (p < 0.02) and a higher HDL cholesterol (p < 0.025) after the EGG diet. There were no differences in plasma LDL cholesterol, triglycerides, glucose, insulin, or blood pressure. The number of large HDL particles measured by NMR was higher after EGG (p < 0.01) as compared to SUB. Plasma choline was higher in both treatments (p < 0.01) compared to baseline (8.3 ± 2.1 μmol/L). However, plasma choline values were higher in EGG (10.54 ± 2.8 μmol/L) compared to SUB (9.47 ± 2.7 μmol/L) p < 0.025. Both breakfasts increased plasma lutein compared to baseline (p < 0.01), while plasma zeaxanthin was only increased in the egg intervention (p < 0.01). These results indicate that consuming a plant-based diet in combination with whole eggs increases plasma HDL cholesterol, choline and zeaxanthin, important biomarkers in subjects with MetS.
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Affiliation(s)
- Minu S. Thomas
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.P.)
| | - Michael Puglisi
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.P.)
| | - Olga Malysheva
- Department of Human Nutrition, Division of Nutritional Science, Cornell University, Ithaca, NY 14860, USA; (O.M.); (M.A.C.)
| | - Marie A. Caudill
- Department of Human Nutrition, Division of Nutritional Science, Cornell University, Ithaca, NY 14860, USA; (O.M.); (M.A.C.)
| | - Maria Sholola
- Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210, USA; (M.S.); (J.L.C.)
| | - Jessica L. Cooperstone
- Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210, USA; (M.S.); (J.L.C.)
- Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH 43210, USA
| | - Maria Luz Fernandez
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.P.)
- Correspondence:
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Thomas MS, DiBella M, Blesso CN, Malysheva O, Caudill M, Sholola M, Cooperstone JL, Fernandez ML. Comparison between Egg Intake versus Choline Supplementation on Gut Microbiota and Plasma Carotenoids in Subjects with Metabolic Syndrome. Nutrients 2022; 14:nu14061179. [PMID: 35334836 PMCID: PMC8951625 DOI: 10.3390/nu14061179] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/08/2022] [Accepted: 03/09/2022] [Indexed: 02/06/2023] Open
Abstract
We previously demonstrated that intake of three eggs/d for 4 weeks increased plasma choline and decreased inflammation in subjects with metabolic syndrome (MetS). The purpose of the current study was to further explore the effects of phosphatidylcholine (PC) provided by eggs versus a choline bitartrate (CB) supplement on the gut microbiota, trimethylamine N-oxide (TMAO) formation, and plasma carotenoids lutein and zeaxanthin in MetS. This randomized, controlled crossover clinical trial included 23 subjects with MetS. Following a washout period of 2 weeks without consuming any choline-containing foods, subjects were randomly allocated to consume either three eggs/d or a CB supplement for 4 weeks (both diets had a choline equivalent of 400 mg/day). DNA was extracted from stool samples to sequence the 16S rRNA gene region for community analysis. Operational taxonomic units (OTUs) and the α-diversity of the community were determined using QIIME software. Plasma TMAO, methionine, betaine, and dimethylglycine (DMG) were quantified by stable isotope dilution liquid chromatography with tandem mass spectrometry. Plasma carotenoids, lutein, and zeaxanthin were measured using reversed-phase high-performance liquid chromatography. There were significant increases in plasma lutein and zeaxanthin after egg intake compared to the baseline or intake of CB supplement (p < 0.01). In contrast, TMAO was not different between treatments compared to the baseline (p > 0.05). Additionally, while diet intervention had no effects on microbiota diversity measures or relative taxa abundances, a correlation between bacterial biodiversity and HDL was observed. Following egg intake, the observed increases in plasma lutein and zeaxanthin may suggest additional protection against oxidative stress, a common condition in MetS.
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Affiliation(s)
- Minu S. Thomas
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.D.); (C.N.B.)
| | - Marissa DiBella
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.D.); (C.N.B.)
| | - Christopher N. Blesso
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.D.); (C.N.B.)
| | - Olga Malysheva
- Department of Human Nutrition, Division of Nutritional Sciecnces, Cornell University, Ithaca, NY 14860, USA; (O.M.); (M.C.)
| | - Marie Caudill
- Department of Human Nutrition, Division of Nutritional Sciecnces, Cornell University, Ithaca, NY 14860, USA; (O.M.); (M.C.)
| | - Maria Sholola
- Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210, USA; (M.S.); (J.L.C.)
| | - Jessica L. Cooperstone
- Department of Food Science and Technology, The Ohio State University, Columbus, OH 43210, USA; (M.S.); (J.L.C.)
- Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH 43210, USA
| | - Maria Luz Fernandez
- Department of Nutritional Sciences, University of Connecticut, Storrs, CT 06269, USA; (M.S.T.); (M.D.); (C.N.B.)
- Correspondence:
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Ilozumba MN, Cheng TYD, Neuhouser ML, Miller JW, Beresford SAA, Duggan DJ, Toriola AT, Song X, Zheng Y, Bailey LB, Shadyab AH, Liu S, Malysheva O, Caudill MA, Ulrich CM. Associations between Plasma Choline Metabolites and Genetic Polymorphisms in One-Carbon Metabolism in Postmenopausal Women: The Women's Health Initiative Observational Study. J Nutr 2020; 150:2874-2881. [PMID: 32939549 PMCID: PMC7675024 DOI: 10.1093/jn/nxaa266] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 03/12/2020] [Accepted: 08/10/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND Choline plays an integral role in one-carbon metabolism in the body, but it is unclear whether genetic polymorphisms are associated with variations in plasma choline and its metabolites. OBJECTIVES This study aimed to evaluate the association of genetic variants in choline and one-carbon metabolism with plasma choline and its metabolites. METHODS We analyzed data from 1423 postmenopausal women in a case-control study nested within the Women's Health Initiative Observational Study. Plasma concentrations of choline, betaine, dimethylglycine (DMG), and trimethylamine N-oxide were determined in 12-h fasting blood samples collected at baseline (1993-1998). Candidate and tagging single-nucleotide polymorphisms (SNPs) were genotyped in betaine-homocysteine S-methyltransferase (BHMT), BHMT2, 5,10-methylenetetrahydrofolate reductase (MTHFR), methylenetetrahydrofolate dehydrogenase (NADP+ dependent 1) (MTHFD1), 5-methyltetrahydrofolate-homocysteine methyltransferase (MTR), and 5-methyltetrahydrofolate-homocysteine methyltransferase reductase (MTRR). Linear regression was used to derive percentage difference in plasma concentrations per variant allele, adjusting for confounders, including B-vitamin biomarkers. Potential effect modification by plasma vitamin B-12, vitamin B-6, and folate concentrations and folic-acid fortification periods was examined. RESULTS The candidate SNP BHMT R239Q (rs3733890) was associated with lower concentrations of plasma betaine and DMG concentrations (-4.00% and -6.75% per variant allele, respectively; both nominal P < 0.05). Another candidate SNP, BHMT2 rs626105 A>G, was associated with higher plasma DMG concentration (13.0%; P < 0.0001). Several tagSNPs in these 2 genes were associated with plasma concentrations after correction for multiple comparisons. Vitamin B-12 status was a significant effect modifier of the association between the genetic variant BHMT2 rs626105 A>G and plasma DMG concentration. CONCLUSIONS Genetic variations in metabolic enzymes were associated with plasma concentrations of choline and its metabolites. Our findings contribute to the knowledge on the variation in blood nutrient concentrations in postmenopausal women.
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Affiliation(s)
| | | | - Marian L Neuhouser
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Joshua W Miller
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA
| | - Shirley A A Beresford
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA,Department of Epidemiology, University of Washington, Seattle, WA, USA
| | - David J Duggan
- Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Adetunji T Toriola
- Division of Public Health Sciences, Department of Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Xiaoling Song
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Yingye Zheng
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Lynn B Bailey
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Aladdin H Shadyab
- Department of Family Medicine and Public Health, University of California, San Diego, La Jolla, CA, USA
| | - Simin Liu
- Department of Epidemiology, Brown University, Providence, RI, USA,Department of Medicine, Brown University, Providence, RI, USA
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Cornelia M Ulrich
- Huntsman Cancer Institute, Salt Lake City, UT, USA,Department of Population Health Sciences, University of Utah, Salt Lake City, UT, USA
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9
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Plumptre L, Tammen SA, Sohn KJ, Masih SP, Visentin CE, Aufreiter S, Malysheva O, Schroder TH, Ly A, Berger H, Croxford R, Lamers Y, Caudill MA, Choi SW, O'Connor DL, Kim YI. Maternal and Cord Blood Folate Concentrations Are Inversely Associated with Fetal DNA Hydroxymethylation, but Not DNA Methylation, in a Cohort of Pregnant Canadian Women. J Nutr 2020; 150:202-211. [PMID: 31562504 DOI: 10.1093/jn/nxz232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Revised: 06/28/2019] [Accepted: 09/03/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Aberrancies in fetal DNA methylation programming may modify disease susceptibility of the offspring. Maternal folate status has potential to alter fetal DNA methylation. OBJECTIVES We examined the association of maternal and cord blood concentrations of folate and unmetabolized folic acid (UMFA), vitamin B-12, vitamin B-6, and choline with fetal DNA methylation and hydroxymethylation and assessed potential modifying effects of 38 fetal genetic variants in 22 genes. METHODS Nutrient blood concentrations were measured in 368 pregnant women in early pregnancy (12-16 wk of gestation) and at delivery (37-42 wk of gestation) and in cord blood. DNA methylation and hydroxymethylation in cord blood mononuclear cells were quantified by LC-MS/MS. Pearson partial correlations were used to determine the association between individual nutrients and DNA methylation and hydroxymethylation. RESULTS Serum and RBC folate and plasma UMFA concentrations (primary outcomes) in early pregnancy, at delivery, and in cord blood were not significantly associated with fetal DNA methylation. In contrast, maternal RBC folate in early pregnancy (r = -0.16, P = 0.04) and cord plasma UMFA (r = -0.23, P = 0.004) were inversely correlated with fetal DNA hydroxymethylation. Neither maternal and cord blood concentrations of other nutrients nor fetal genotypes (secondary outcomes) were significantly associated with fetal DNA methylation or hydroxymethylation. Infants born to mothers with RBC folate concentrations in the highest quartile and serum vitamin B-12 concentrations in the lowest quartile in early pregnancy had significantly lower fetal DNA methylation and higher birth weight compared with those born to mothers with lower RBC folate and higher serum vitamin B-12 concentrations (P = 0.01). CONCLUSIONS Maternal and cord blood folate concentrations are associated with fetal DNA hydroxymethylation, but not DNA methylation, in a cohort of pregnant Canadian women. The observation that high folate and low vitamin B-12 maternal status in early pregnancy may be associated with decreased fetal DNA methylation and higher birth weight warrants further investigation. This trial was registered at clinicaltrials.gov as NCT02244684.
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Affiliation(s)
- Lesley Plumptre
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Keenan Research Center for Biomedical Science of St Michael's Hospital, Toronto, Ontario, Canada
| | - Stephanie A Tammen
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA
| | - Kyoung-Jin Sohn
- Keenan Research Center for Biomedical Science of St Michael's Hospital, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Shannon P Masih
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Keenan Research Center for Biomedical Science of St Michael's Hospital, Toronto, Ontario, Canada
| | - Carly E Visentin
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Keenan Research Center for Biomedical Science of St Michael's Hospital, Toronto, Ontario, Canada
| | - Susanne Aufreiter
- Translational Medicine, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Olga Malysheva
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY, USA
| | - Theresa H Schroder
- Food, Nutrition, and Health Program, Faculty of Land and Food Systems, Vancouver Campus, University of British Columbia, Vancouver, British Columbia, Canada
| | - Anna Ly
- Keenan Research Center for Biomedical Science of St Michael's Hospital, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Howard Berger
- Department of Obstetrics and Gynecology, St Michael's Hospital, Toronto, Ontario, Canada
| | - Ruth Croxford
- Freelance Statistics Consultant, Toronto, Ontario, Canada
| | - Yvonne Lamers
- Food, Nutrition, and Health Program, Faculty of Land and Food Systems, Vancouver Campus, University of British Columbia, Vancouver, British Columbia, Canada
| | - Marie A Caudill
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY, USA
| | - Sang-Woon Choi
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA, USA.,Chaum Life Center, CHA School of Medicine, Seoul, Korea
| | - Deborah L O'Connor
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Translational Medicine, Research Institute, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Young-In Kim
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Keenan Research Center for Biomedical Science of St Michael's Hospital, Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Toronto, Ontario, Canada
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10
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Knight AK, Park HJ, Hausman DB, Fleming JM, Bland VL, Rosa G, Kennedy EM, Caudill MA, Malysheva O, Kauwell GPA, Sokolow A, Fisher S, Smith AK, Bailey LB. Association between one-carbon metabolism indices and DNA methylation status in maternal and cord blood. Sci Rep 2018; 8:16873. [PMID: 30442960 PMCID: PMC6237996 DOI: 10.1038/s41598-018-35111-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 09/18/2018] [Indexed: 01/02/2023] Open
Abstract
One-carbon metabolism is essential for multiple cellular processes and can be assessed by the concentration of folate metabolites in the blood. One-carbon metabolites serve as methyl donors that are required for epigenetic regulation. Deficiencies in these metabolites are associated with a variety of poor health outcomes, including adverse pregnancy complications. DNA methylation is known to vary with one-carbon metabolite concentration, and therefore may modulate the risk of adverse pregnancy outcomes. This study addresses changes in one-carbon indices over pregnancy and the relationship between maternal and child DNA methylation and metabolite concentrations by leveraging data from 24 mother-infant dyads. Five of the 13 metabolites measured from maternal blood and methylation levels of 993 CpG sites changed over the course of pregnancy. In dyads, maternal and fetal one-carbon concentrations were highly correlated, both early in pregnancy and at delivery. The 993 CpG sites whose methylation levels changed over pregnancy in maternal blood were also investigated for associations with metabolite concentrations in infant blood at delivery, where five CpG sites were associated with the concentration of at least one metabolite. Identification of CpG sites that change over pregnancy may result in better characterization of genes and pathways involved in maintaining a healthy, term pregnancy.
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Affiliation(s)
- Anna K Knight
- Genetics and Molecular Biology Program, Emory University, Atlanta, GA, USA
| | - Hea Jin Park
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Dorothy B Hausman
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Jennifer M Fleming
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Victoria L Bland
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Gisselle Rosa
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
| | - Elizabeth M Kennedy
- Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Gail P A Kauwell
- Food Science and Human Nutrition Department, University of Florida, Gainesville, FL, USA
| | - Andrew Sokolow
- Food Science and Human Nutrition Department, University of Florida, Gainesville, FL, USA
| | - Susan Fisher
- Piedmont Athens Regional Midwifery, Athens, GA, USA
| | - Alicia K Smith
- Genetics and Molecular Biology Program, Emory University, Atlanta, GA, USA. .,Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, USA.
| | - Lynn B Bailey
- Department of Foods and Nutrition, University of Georgia, Athens, GA, USA
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11
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Taylor L, Krueger N, Malysheva O, Atkinson J, Parker RS. ω-Hydroxylation of α-tocopheryl quinone reveals a dual function for cytochrome P450-4F2 in vitamin E metabolism. Bioorg Med Chem 2018; 26:5555-5565. [DOI: 10.1016/j.bmc.2018.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 09/28/2018] [Accepted: 10/04/2018] [Indexed: 10/28/2022]
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12
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Barzilay E, Moon A, Plumptre L, Masih SP, Sohn KJ, Visentin CE, Ly A, Malysheva O, Croxford R, Caudill MA, O'Connor DL, Kim YI, Berger H. Fetal one-carbon nutrient concentrations may be affected by gestational diabetes. Nutr Res 2018; 55:57-64. [PMID: 29914628 DOI: 10.1016/j.nutres.2018.04.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 01/19/2018] [Accepted: 04/15/2018] [Indexed: 01/21/2023]
Abstract
Both insufficiency and excess of one-carbon nutrients (folate, choline, vitamins B6 and B12) during pregnancy have been associated with gestational diabetes mellitus (GDM). However, the precise nature of this association has not been clearly established. We hypothesized that GDM may affect one-carbon nutrients concentrations in the fetus, thus possibly participating in epigenetic programing of the offspring. Maternal blood was collected at recruitment (12-16 weeks). At delivery (28-42 weeks), both maternal and cord blood were collected. Blood concentrations of one-carbon nutrients and their metabolites were compared between the two groups. A total of 368 women were included in the study, of whom 19 (5.6%) were later diagnosed with GDM. No significant differences were found in maternal blood concentrations of one-carbon nutrients and their metabolites between the GDM and control groups at recruitment or at delivery. In cord blood, however, serum folate (87.7 [IQR 70.4-103.9] vs 66.6 [IQR 45.5-80.3] nmol/L, P = .025) and plasma TMAO (2.82 [IQR 1.3-3.2] vs 1.35 [IQR 1.0-2.0] μmol/L, P = .017) concentrations were higher, while plasma betaine concentrations were lower (17.5 [IQR 16.3-19.4] vs 21.1 [IQR 18.0-24.1] μmol/L, P = .019) in infants born to mothers with GDM compared with control. Our data suggest that while maternal blood concentrations of one-carbon nutrients and their metabolites may not affect the risk of GDM, GDM may alter concentrations of serum folate, plasma betaine and TMAO in cord blood. These alterations in one-carbon nutrient concentrations in fetal circulation may impact epigenetic programing, thereby contributing to physiologic changes and disease susceptibility in adulthood associated with GDM offspring.
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Affiliation(s)
- Eran Barzilay
- Department of Obstetrics & Gynecology, St. Michael's Hospital & University of Toronto, Toronto, ON, Canada; Department of Obstetrics and Gynecology, Assuta Ashdod University Hospital, Ashdod, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Ashley Moon
- The Keenan Research Center for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada
| | - Lesley Plumptre
- The Keenan Research Center for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada; Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Shannon P Masih
- The Keenan Research Center for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada; Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Kyoung-Jin Sohn
- The Keenan Research Center for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Carly E Visentin
- The Keenan Research Center for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada; Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Anna Ly
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Olga Malysheva
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY
| | - Ruth Croxford
- Freelance statistics consultant, Toronto, Ontario, Canada
| | - Marie A Caudill
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY
| | - Deborah L O'Connor
- Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada; Research Institute, the Hospital for Sick Children
| | - Young-In Kim
- The Keenan Research Center for Biomedical Science of St. Michael's Hospital, Toronto, Ontario, Canada; Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada; Department of Medicine, University of Toronto, Toronto, Ontario, Canada; The Division of Gastroenterology, Department of Medicine, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Howard Berger
- Department of Obstetrics & Gynecology, St. Michael's Hospital & University of Toronto, Toronto, ON, Canada
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13
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Ganz AB, Cohen VV, Swersky CC, Stover JA, Vitiello GA, Lovesky J, Chuang J, Shields K, Fomin VG, Lopez YS, Mohan S, Ganti A, Carrier B, Malysheva O, Caudill MA. Genetic Variation in Choline‐Metabolizing Enzymes Alters Choline Dynamics in Women Meeting Current Dietary Recommendations. FASEB J 2017. [DOI: 10.1096/fasebj.31.1_supplement.644.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | | | | | - Jasmine Chuang
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Kelsey Shields
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Vlad G. Fomin
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | | | - Sanjay Mohan
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Anita Ganti
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | | | - Olga Malysheva
- Division of Nutritional SciencesCornell UniversityIthacaNY
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14
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Dam K, Füchtemeier M, Farr TD, Boehm-Sturm P, Foddis M, Dirnagl U, Malysheva O, Caudill MA, Jadavji NM. Increased homocysteine levels impair reference memory and reduce cortical levels of acetylcholine in a mouse model of vascular cognitive impairment. Behav Brain Res 2017; 321:201-208. [DOI: 10.1016/j.bbr.2016.12.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/26/2016] [Accepted: 12/29/2016] [Indexed: 01/26/2023]
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15
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Bahous RH, Jadavji NM, Deng L, Cosín-Tomás M, Lu J, Malysheva O, Leung KY, Ho MK, Pallàs M, Kaliman P, Greene ND, Bedell BJ, Caudill MA, Rozen R. High dietary folate in pregnant mice leads to pseudo-MTHFR deficiency and altered methyl metabolism, with embryonic growth delay and short-term memory impairment in offspring. Hum Mol Genet 2017; 26:888-900. [PMID: 28069796 PMCID: PMC5409086 DOI: 10.1093/hmg/ddx004] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/06/2016] [Accepted: 01/03/2017] [Indexed: 12/22/2022] Open
Abstract
Methylenetetrahydrofolate reductase (MTHFR) generates methyltetrahydrofolate for methylation reactions. Severe MTHFR deficiency results in homocystinuria and neurologic impairment. Mild MTHFR deficiency (677C > T polymorphism) increases risk for complex traits, including neuropsychiatric disorders. Although low dietary folate impacts brain development, recent concerns have focused on high folate intake following food fortification and increased vitamin use. Our goal was to determine whether high dietary folate during pregnancy affects brain development in murine offspring. Female mice were placed on control diet (CD) or folic acid-supplemented diet (FASD) throughout mating, pregnancy and lactation. Three-week-old male pups were evaluated for motor and cognitive function. Tissues from E17.5 embryos, pups and dams were collected for choline/methyl metabolite measurements, immunoblotting or gene expression of relevant enzymes. Brains were examined for morphology of hippocampus and cortex. Pups of FASD mothers displayed short-term memory impairment, decreased hippocampal size and decreased thickness of the dentate gyrus. MTHFR protein levels were reduced in FASD pup livers, with lower concentrations of phosphocholine and glycerophosphocholine in liver and hippocampus, respectively. FASD pup brains showed evidence of altered acetylcholine availability and Dnmt3a mRNA was reduced in cortex and hippocampus. E17.5 embryos and placentas from FASD dams were smaller. MTHFR protein and mRNA were reduced in embryonic liver, with lower concentrations of choline, betaine and phosphocholine. Embryonic brain displayed altered development of cortical layers. In summary, high folate intake during pregnancy leads to pseudo-MTHFR deficiency, disturbed choline/methyl metabolism, embryonic growth delay and memory impairment in offspring. These findings highlight the unintended negative consequences of supplemental folic acid.
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Affiliation(s)
- Renata H. Bahous
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Nafisa M. Jadavji
- Department of Neuroscience, Carleton University, Ottawa, Ontario, Canada
| | - Liyuan Deng
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Marta Cosín-Tomás
- Pharmacology Unit, Faculty of Pharmacy, Institut de Neurociència Universitat de Barcelona (IBUB), Nucli Universitari de Pedralbes, Barcelona, Spain
| | - Jessica Lu
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
| | - Olga Malysheva
- Division of Nutritional Sciences and Genomics, Cornell University, Ithaca, NY, USA
| | - Kit-Yi Leung
- Developmental Biology and Cancer Programme, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Ming-Kai Ho
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Mercè Pallàs
- Pharmacology Unit, Faculty of Pharmacy, Institut de Neurociència Universitat de Barcelona (IBUB), Nucli Universitari de Pedralbes, Barcelona, Spain
| | - Perla Kaliman
- Institute of Biomedical Investigation of Barcelona, Spanish National Research Council, Barcelona, Spain
- Center for Mind and Brain, University of California Davis, Davis, CA, USA
| | - Nicholas D.E. Greene
- Developmental Biology and Cancer Programme, Great Ormond Street Institute of Child Health, University College London, London, United Kingdom
| | - Barry J. Bedell
- Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
| | - Marie A. Caudill
- Division of Nutritional Sciences and Genomics, Cornell University, Ithaca, NY, USA
| | - Rima Rozen
- Departments of Human Genetics and Pediatrics, Research Institute of the McGill University Health Center, Montreal, Quebec, Canada
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16
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Park H, Brannon PM, West AA, Yan J, Jiang X, Perry CA, Malysheva O, Mehta S, Caudill MA. Maternal vitamin D biomarkers are associated with maternal and fetal bone turnover among pregnant women consuming controlled amounts of vitamin D, calcium, and phosphorus. Bone 2017; 95:183-191. [PMID: 27939956 PMCID: PMC5222782 DOI: 10.1016/j.bone.2016.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 11/18/2016] [Accepted: 12/06/2016] [Indexed: 12/23/2022]
Abstract
Vitamin D plays a central role in calcium homeostasis; however, its relationship with bone turnover during pregnancy remains unclear due to a lack of studies that have rigorously controlled for vitamin D and other nutrients known to influence bone metabolism. Similarly, prior investigations of the effect of pregnancy on bone turnover relative to the nonpregnant state may have been confounded by varying intakes of these nutrients. Nested within a controlled intake study, the present investigation sought to quantify associations between maternal vitamin D biomarkers and biochemical markers of bone turnover among pregnant (versus nonpregnant) women and their fetuses under conditions of equivalent and adequate intakes of vitamin D and related nutrients. Changes in markers of bone turnover across the third trimester were also examined. Healthy pregnant (26-29 wk gestation; n=26) and nonpregnant (n=21) women consumed 511IU vitamin D/d, 1.6g calcium/d, and 1.9g phosphorus/d for 10weeks while participating in a controlled feeding study featuring two choline doses. Based on linear mixed models adjusted for influential covariates (e.g., BMI, ethnicity, and season), pregnant women had 50-150% higher (P<0.001) concentrations of bone resorption markers than nonpregnant women. Among pregnant women, increases in maternal 25(OH)D across the study period were associated (P<0.020) with lower osteocalcin and deoxypyridinoline at study-end, and higher fetal osteocalcin. In addition, maternal free 25(OH)D, 1,25(OH)2D and 24,25(OH)2D tended to be negatively associated (P≤0.063) with maternal NTx at study-end, and maternal free 25(OH)D and 24,25(OH)2D were positively associated (P≤0.021) with fetal CTx. Similarly, maternal 3-epi-25(OH)D3 was negatively related (P≤0.037) to maternal NTx and deoxypyridinoline at study-end. These declines in bone resorption markers resulting from higher vitamin D biomarker concentrations among pregnant women coincided with increases in their albumin-corrected serum calcium concentrations, indicating that calcium transfer to the fetus was uncompromised. Notably, none of these associations achieved statistical significance among nonpregnant women. Overall, our study findings suggest that achieving higher maternal concentrations of vitamin D biomarkers might attenuate third-trimester bone resorption while ensuring sufficient calcium delivery to the fetus.
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Affiliation(s)
- Heyjun Park
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Patsy M Brannon
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Allyson A West
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Jian Yan
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Xinyin Jiang
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Cydne A Perry
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Saurabh Mehta
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA.
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17
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Howe CG, Liu X, Hall MN, Ilievski V, Caudill MA, Malysheva O, Lomax-Luu AM, Parvez F, Siddique AB, Shahriar H, Uddin MN, Islam T, Graziano JH, Costa M, Gamble MV. Sex-Specific Associations between One-Carbon Metabolism Indices and Posttranslational Histone Modifications in Arsenic-Exposed Bangladeshi Adults. Cancer Epidemiol Biomarkers Prev 2016; 26:261-269. [PMID: 27765800 DOI: 10.1158/1055-9965.epi-16-0202] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Revised: 09/09/2016] [Accepted: 10/10/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Posttranslational histone modifications (PTHMs) are altered by arsenic, an environmental carcinogen. PTHMs are also influenced by nutritional methyl donors involved in one-carbon metabolism (OCM), which may protect against epigenetic dysregulation. METHODS We measured global levels of three PTHMs, which are dysregulated in cancers (H3K36me2, H3K36me3, H3K79me2), in peripheral blood mononuclear cells (PBMC) from 324 participants enrolled in the Folic Acid and Creatine Trial, a randomized trial in arsenic-exposed Bangladeshi adults. Sex-specific associations between several blood OCM indices (folate, vitamin B12, choline, betaine, homocysteine) and PTHMs were examined at baseline using regression models, adjusted for multiple tests by controlling for the false discovery rate (PFDR). We also evaluated the effects of folic acid supplementation (400 μg/d for 12 weeks), compared with placebo, on PTHMs. RESULTS Associations between choline and H3K36me2 and between vitamin B12 and H3K79me2 differed significantly by sex (Pdiff < 0.01 and <0.05, respectively). Among men, plasma choline was positively associated with H3K36me2 (PFDR < 0.05), and among women, plasma vitamin B12 was positively associated with H3K79me2 (PFDR < 0.01). Folic acid supplementation did not alter any of the PTHMs examined (PFDR = 0.80). CONCLUSIONS OCM indices may influence PTHMs in a sex-dependent manner, and folic acid supplementation, at this dose and duration, does not alter PTHMs in PBMCs. IMPACT This is the first study to examine the influences of OCM indices on PTHMs in a population that may have increased susceptibility to cancer development due to widespread exposure to arsenic-contaminated drinking water and a high prevalence of hyperhomocysteinemia. Cancer Epidemiol Biomarkers Prev; 26(2); 261-9. ©2016 AACR.
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Affiliation(s)
- Caitlin G Howe
- Department of Environmental Health Sciences, Mailman School of Public Health, New York
| | - Xinhua Liu
- Department of Biostatistics, Mailman School of Public Health, New York
| | - Megan N Hall
- Department of Epidemiology, Mailman School of Public Health, New York
| | - Vesna Ilievski
- Department of Environmental Health Sciences, Mailman School of Public Health, New York
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Angela M Lomax-Luu
- Department of Environmental Health Sciences, Mailman School of Public Health, New York
| | - Faruque Parvez
- Department of Environmental Health Sciences, Mailman School of Public Health, New York
| | - Abu B Siddique
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
| | - Hasan Shahriar
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
| | - Mohammad N Uddin
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
| | - Tariqul Islam
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
| | - Joseph H Graziano
- Department of Environmental Health Sciences, Mailman School of Public Health, New York
| | - Max Costa
- Department of Environmental Medicine, NYU Langone Medical Center, New York University, New York
| | - Mary V Gamble
- Department of Environmental Health Sciences, Mailman School of Public Health, New York
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18
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Hall MN, Howe CG, Liu X, Caudill MA, Malysheva O, Ilievski V, Lomax-Luu AM, Parvez F, Siddique AB, Shahriar H, Uddin MN, Islam T, Graziano JH, Gamble MV. Supplementation with Folic Acid, but Not Creatine, Increases Plasma Betaine, Decreases Plasma Dimethylglycine, and Prevents a Decrease in Plasma Choline in Arsenic-Exposed Bangladeshi Adults. J Nutr 2016; 146:1062-7. [PMID: 27052531 PMCID: PMC4841924 DOI: 10.3945/jn.115.227132] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 02/24/2016] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Folic acid (FA) supplementation facilitates urinary excretion of arsenic, a human carcinogen. A better understanding of interactions between one-carbon metabolism intermediates may improve the ability to design nutrition interventions that further facilitate arsenic excretion. OBJECTIVE The objective was to determine if FA and/or creatine supplementation increase choline and betaine and decrease dimethylglycine (DMG). METHODS We conducted a secondary analysis of the Folic Acid and Creatine Trial, a randomized trial in arsenic-exposed Bangladeshi adults (n = 605, aged 24-55 y, 50.3% male) who received arsenic-removal water filters. We examined treatment effects of FA and/or creatine supplementation on plasma choline, betaine, and DMG concentrations, measured by LC-tandem mass spectrometry at baseline and at week 12. Group comparisons were between 1) 400 and 800 μg FA/d (FA400 and FA800, respectively) compared with placebo, 2) creatine (3 g/d) compared with placebo, and 3) creatine plus FA400 compared with FA400. RESULTS Choline decreased in the placebo group (-6.6%; 95% CI: -10.2%, -2.9%) but did not change in the FA groups (FA400: 2.5%; 95% CI: -0.9%, 6.1%; FA800: 1.4%; 95% CI: -2.5%, 5.5%; P < 0.05). Betaine did not change in the placebo group (-3.5%; 95% CI: -9.3%, 2.6%) but increased in the FA groups (FA400: 14.1%; 95% CI: 9.4%, 19.0%; FA800: 13.0%; 95% CI: 7.2%, 19.1%; P < 0.01). The decrease in DMG was greater in the FA groups (FA400: -26.7%; 95% CI: -30.9%, -22.2%; FA800: -27.8%; 95% CI: -31.8%, -23.4%) than in the placebo group (-12.3%; 95% CI: -18.1%, -6.2%; P < 0.01). The percentage change in choline, betaine, and DMG did not differ between creatine treatment arms and their respective reference groups. CONCLUSION Supplementation for 12 wk with FA, but not creatine, increases plasma betaine, decreases plasma DMG, and prevents a decrease in plasma choline in arsenic-exposed Bangladeshi adults. This trial was registered at clinicaltrials.gov as NCT01050556.
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Affiliation(s)
| | | | - Xinhua Liu
- Biostatistics, Mailman School of Public Health, Columbia University, New York, NY
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | | | | | | | - Abu B Siddique
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
| | - Hasan Shahriar
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
| | - Mohammad N Uddin
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
| | - Tariqul Islam
- Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh
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19
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Meusch U, Klingner M, Mathar C, Malysheva O, Baerwald C, Rossol M, Wagner U. Brief Report: Autocrine Cytokine-Mediated Deficiency of TRAIL-Induced Monocyte Apoptosis in Rheumatoid Arthritis. Arthritis Rheumatol 2015; 67:1760-5. [PMID: 25833292 DOI: 10.1002/art.39138] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 02/25/2015] [Accepted: 03/24/2015] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Dysregulated apoptosis of monocytes is a pathogenic feature of rheumatoid arthritis (RA). The aim of this study was to investigate the role of TRAIL and TRAIL-induced apoptosis in patients with RA. METHODS Cell surface expression and serum concentrations of TRAIL were determined in 63 patients with RA, and TRAIL-induced monocyte apoptosis was quantified. Surface expression of TRAILR-1, TRAILR-2, TRAILR-3, TRAILR-4, CXCR1, and CXCR2 was determined, and intracellular signal transduction was investigated. In 8 patients with RA, clinical and laboratory parameters of disease activity were investigated longitudinally, before and after initiation of treatment with tumor necrosis factor (TNF) inhibitors. RESULTS Serum concentrations of both TRAIL and interleukin-8 (IL-8) were increased in patients with RA, while cell surface expression of the TRAIL receptors TRAILR-1, TRAILR-2, TRAILR-3, and TRAILR-4 was diminished. TRAIL-induced monocyte apoptosis was significantly decreased in RA due to increased TRAIL-induced IL-8 secretion by RA monocytes. The combined effect of TRAIL and IL-8 on monocytes resulted in activation of antiapoptotic pathways, including p42/44 MAPK and p38. Susceptibility to TRAIL-induced apoptosis was restored in RA monocytes after 3 months of TNF inhibition. CONCLUSION In RA, circulating monocytes with the potential to produce proinflammatory cytokines appear to have defects in several pathways of apoptosis induction, among which is a deficiency in TRAIL-induced apoptosis. Although this resistance to apoptosis might contribute to perpetuation of the disease, it remains to be determined whether specific induction of apoptosis could be therapeutically beneficial.
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20
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Visentin CE, Masih S, Plumptre L, Malysheva O, Nielsen DE, Sohn KJ, Ly A, Lausman AY, Berger H, Croxford R, El-Sohemy A, Caudill MA, O'Connor DL, Kim YI. Maternal Choline Status, but Not Fetal Genotype, Influences Cord Plasma Choline Metabolite Concentrations. J Nutr 2015; 145:1491-7. [PMID: 25972528 DOI: 10.3945/jn.115.211136] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 04/16/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Choline deficiency during pregnancy can lead to adverse birth outcomes, including impaired neurodevelopment and birth defects. Genetic variants of choline and one-carbon metabolism may also influence birth outcomes by altering plasma choline concentrations. The effects of maternal ad libitum choline intake during pregnancy and fetal genetic variants on maternal and cord concentrations of choline and its metabolites are unknown. OBJECTIVES This prospective study sought to assess the effect of 1) maternal dietary choline intake on maternal and cord plasma concentrations of choline and its metabolites, and 2) fetal genetic polymorphisms on cord plasma concentrations. METHODS The dietary choline intake of 368 pregnant Canadian women was assessed in early (0-16 wk) and late (23-37 wk) pregnancy with the use of a food frequency questionnaire. Plasma concentrations of free choline and its metabolites were measured in maternal samples at recruitment and delivery, and in the cord blood. Ten fetal genetic variants in choline and one-carbon metabolism were assessed for their association with cord plasma concentrations of free choline and its metabolites. RESULTS Mean maternal plasma free choline, dimethylglycine, and trimethylamine N-oxide (TMAO) concentrations increased during pregnancy by 49%, 17%, and 13%, respectively (P < 0.005), whereas betaine concentrations decreased by 21% (P < 0.005). Cord plasma concentrations of free choline, betaine, dimethylglycine, and TMAO were 3.2, 2.0, 1.3, and 0.88 times corresponding maternal concentrations at delivery, respectively (all P < 0.005). Maternal plasma concentrations of betaine, dimethylglycine, and TMAO (r(2) = 0.19-0.51; P < 0.0001) at delivery were moderately strong, whereas maternal concentrations of free choline were not significant (r(2) = 0.12; P = 0.06), predictors of cord plasma concentrations of these metabolites. Neither maternal dietary intake nor fetal genetic variants predicted maternal or cord plasma concentrations of choline and its metabolites. CONCLUSION These data collectively indicate that maternal choline status, but not fetal genotype, influences cord plasma concentrations of choline metabolites. This trial was registered at clinicaltrials.gov as NCT02244684.
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Affiliation(s)
- Carly E Visentin
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Shannon Masih
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Lesley Plumptre
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Olga Malysheva
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY; and
| | - Daiva E Nielsen
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada
| | - Kyoung-Jin Sohn
- Departments of Medicine and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Anna Ly
- Departments of Medicine and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada
| | - Andrea Y Lausman
- Obstetrics and Gynecology, St. Michael's Hospital and University of Toronto, Toronto, Canada
| | - Howard Berger
- Obstetrics and Gynecology, St. Michael's Hospital and University of Toronto, Toronto, Canada
| | | | - Ahmed El-Sohemy
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada
| | - Marie A Caudill
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, Ithaca, NY; and
| | - Deborah L O'Connor
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; Research Institute, the Hospital for Sick Children, Toronto, Canada
| | - Young-In Kim
- Department of Nutritional Sciences, University of Toronto, Toronto, Canada; Departments of Medicine and Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada;
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21
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Bae S, West AA, Yan J, Jiang X, Perry CA, Malysheva O, Stabler SP, Allen RH, Caudill MA. Vitamin B-12 Status Differs among Pregnant, Lactating, and Control Women with Equivalent Nutrient Intakes. J Nutr 2015; 145:1507-14. [PMID: 25995278 DOI: 10.3945/jn.115.210757] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 04/21/2015] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Limited data are available from controlled studies on biomarkers of maternal vitamin B-12 status. OBJECTIVE We sought to quantify the effects of pregnancy and lactation on the vitamin B-12 status response to a known and highly controlled vitamin B-12 intake. METHODS As part of a 10-12 wk feeding trial, pregnant (26-29 wk gestation; n = 26), lactating (5 wk postpartum; n = 28), and control (nonpregnant, nonlactating; n = 21) women consumed vitamin B-12 amounts of ∼8.6 μg/d [mixed diet (∼6 μg/d) plus a prenatal multivitamin supplement (2.6 μg/d)]. Serum vitamin B-12, holotranscobalamin (bioactive form of vitamin B-12), methylmalonic acid (MMA), and homocysteine were measured at baseline and study-end. RESULTS All participants achieved adequate vitamin B-12 status in response to the study dose. Compared with control women, pregnant women had lower serum vitamin B-12 (-21%; P = 0.02) at study-end, whereas lactating women had higher (P = 0.04) serum vitamin B-12 throughout the study (+26% at study-end). Consumption of the study vitamin B-12 dose increased serum holotranscobalamin in all reproductive groups (+16-42%; P ≤ 0.009). At study-end, pregnant (vs. control) women had a higher holotranscobalamin-to-vitamin B-12 ratio (P = 0.04) with ∼30% (vs. 20%) of total vitamin B-12 in the bioactive form. Serum MMA increased during pregnancy (+50%; P < 0.001) but did not differ by reproductive state at study-end. Serum homocysteine increased in pregnant women (+15%; P = 0.009) but decreased in control and lactating women (-16-17%; P < 0.001). Despite these changes, pregnant women had ∼20% lower serum homocysteine than the other 2 groups at study-end (P ≤ 0.02). CONCLUSION Pregnancy and lactation alter vitamin B-12 status in a manner consistent with enhanced vitamin B-12 supply to the child. Consumption of the study vitamin B-12 dose (∼3 times the RDA) increased the bioactive form of vitamin B-12, suggesting that women in these reproductive states may benefit from vitamin B-12 intakes exceeding current recommendations. This trial was registered at clinicaltrials.gov as NCT01127022.
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Affiliation(s)
- Sajin Bae
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | - Allyson A West
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | - Jian Yan
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | - Xinyin Jiang
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | - Cydne A Perry
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
| | - Sally P Stabler
- Department of Medicine and Division of Hematology, University of Colorado Health Sciences Center, Denver, CO
| | - Robert H Allen
- Department of Medicine and Division of Hematology, University of Colorado Health Sciences Center, Denver, CO
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY; and
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22
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Malysheva O, Barghan H, Muehlberg K, Baerwald C. SAT0113 Beta2-Adrenergic Receptors Polymorphisms Increase the Risk of Arteriosclerosis: Clinical-Ultrasound-Genetic Study in Patients with Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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23
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Washburn SE, Caudill MA, Malysheva O, MacFarlane AJ, Behan NA, Harnett B, MacMillan L, Pongnopparat T, Brosnan JT, Brosnan ME. Formate metabolism in fetal and neonatal sheep. Am J Physiol Endocrinol Metab 2015; 308:E921-7. [PMID: 25805190 PMCID: PMC4436996 DOI: 10.1152/ajpendo.00046.2015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 03/17/2015] [Indexed: 01/23/2023]
Abstract
By virtue of its role in nucleotide synthesis, as well as the provision of methyl groups for vital methylation reactions, one-carbon metabolism plays a crucial role in growth and development. Formate, a critical albeit neglected component of one-carbon metabolism, occurs extracellularly and may provide insights into cellular events. We examined formate metabolism in chronically cannulated fetal sheep (gestation days 119-121, equivalent to mid-third trimester in humans) and in their mothers as well as in normal full-term lambs. Plasma formate levels were much higher in fetal lamb plasma and in amniotic fluid (191 ± 62 and 296 ± 154 μM, respectively) than in maternal plasma (33 ± 13 μM). Measurements of folate, vitamin B12, and homocysteine showed that these high formate levels could not be due to vitamin deficiencies. Elevated formate levels were also found in newborn lambs and persisted to about 8 wk of age. Formate was also found in sheep milk. Potential precursors of one-carbon groups were also measured in fetal and maternal plasma and in amniotic fluid. There were very high concentrations of serine in the fetus (∼1.6 mM in plasma and 3.5 mM in the amniotic fluid) compared with maternal plasma (0.19 mM), suggesting increased production of formate; however, we cannot rule out decreased formate utilization. Dimethylglycine, a choline metabolite, was also 30 times higher in the fetus than in the mother.
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Affiliation(s)
- Shannon E Washburn
- Department of Veterinary Physiology and Pharmacology and Michael DeBakey Institute, College of Veterinary Medicine and Biomedical Sciences, Texas A & M University, College Station, Texas
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | | | - Nathalie A Behan
- Nutrition Research Division, Health Canada, Ottawa, Ontario, Canada; and
| | - Brian Harnett
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Luke MacMillan
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Theerawat Pongnopparat
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - John T Brosnan
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Margaret E Brosnan
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
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24
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Jadavji NM, Deng L, Malysheva O, Caudill MA, Rozen R. MTHFR deficiency or reduced intake of folate or choline in pregnant mice results in impaired short-term memory and increased apoptosis in the hippocampus of wild-type offspring. Neuroscience 2015; 300:1-9. [PMID: 25956258 DOI: 10.1016/j.neuroscience.2015.04.067] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 04/28/2015] [Accepted: 04/28/2015] [Indexed: 12/22/2022]
Abstract
Genetic or nutritional disturbances in one-carbon metabolism, with associated hyperhomocysteinemia, can result in complex disorders including pregnancy complications and neuropsychiatric diseases. In earlier work, we showed that mice with a complete deficiency of methylenetetrahydrofolate reductase (MTHFR), a critical enzyme in folate and homocysteine metabolism, had cognitive impairment with disturbances in choline metabolism. Maternal demands for folate and choline are increased during pregnancy and deficiencies of these nutrients result in several negative outcomes including increased resorption and delayed development. The goal of this study was to investigate the behavioral and neurobiological impact of a maternal genetic deficiency in MTHFR or maternal nutritional deficiency of folate or choline during pregnancy on 3-week-old Mthfr(+/+) offspring. Mthfr(+/+) and Mthfr(+/-) females were placed on control diets (CD); and Mthfr(+/+) females were placed on folate-deficient diets (FD) or choline-deficient diets (ChDD) throughout pregnancy and lactation until their offspring were 3weeks of age. Short-term memory was assessed in offspring, and hippocampal tissue was evaluated for morphological changes, apoptosis, proliferation and choline metabolism. Maternal MTHFR deficiency resulted in short-term memory impairment in offspring. These dams had elevated levels of plasma homocysteine when compared with wild-type dams. There were no differences in plasma homocysteine in offspring. Increased apoptosis and proliferation was observed in the hippocampus of offspring from Mthfr(+/-) mothers. In the maternal FD and ChDD study, offspring also showed short-term memory impairment with increased apoptosis in the hippocampus; increased neurogenesis was observed in ChDD offspring. Choline acetyltransferase protein was increased in the offspring hippocampus of both dietary groups and betaine was decreased in the hippocampus of FD offspring. Our results reveal short-term memory deficits in the offspring of dams with MTHFR deficiency or dietary deficiencies of critical methyl donors. We suggest that deficiencies in maternal one-carbon metabolism during pregnancy can contribute to hippocampal dysfunction in offspring through apoptosis or altered choline metabolism.
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Affiliation(s)
- N M Jadavji
- Departments of Human Genetics and Pediatrics, McGill University, The Research Institute of the McGill University Health Centre, Montreal, Canada.
| | - L Deng
- Departments of Human Genetics and Pediatrics, McGill University, The Research Institute of the McGill University Health Centre, Montreal, Canada.
| | - O Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, USA.
| | - M A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, USA.
| | - R Rozen
- Departments of Human Genetics and Pediatrics, McGill University, The Research Institute of the McGill University Health Centre, Montreal, Canada.
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25
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Ganz A, Shields K, Yan J, Cohen V, Swersky C, Formin V, Stover J, Lovesky J, Mohan S, Lopez Y, Chuang J, Carrier B, Vitiello G, Malysheva O, Caudill M. Genetic Factors Influence Choline Dynamics in Pregnant and Lactating Women. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.919.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ariel Ganz
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Kelsey Shields
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Jian Yan
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Vanessa Cohen
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Camille Swersky
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Vlad Formin
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Julie Stover
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Jessica Lovesky
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Sanjay Mohan
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Yusnier Lopez
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Jasmine Chuang
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Bradley Carrier
- Division of Nutritional SciencesCornell UniversityUnited States
| | | | - Olga Malysheva
- Division of Nutritional SciencesCornell UniversityUnited States
| | - Marie Caudill
- Division of Nutritional SciencesCornell UniversityUnited States
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26
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Malysheva O, Bedrich A, Kuipers JG, Kleine H, Wolff B, Baerwald CG. Use of clinical scores to guide therapeutic decisions in patients with rheumatoid arthritis in daily care. Clin Exp Rheumatol 2015; 33:255-258. [PMID: 25896474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 01/07/2015] [Indexed: 06/04/2023]
Abstract
OBJECTIVES This study focuses on the application and impact of different clinical scores for treatment changes in daily practice in patients with rheumatoid arthritis (RA), as achieving remission is a feasible aim due to considerable improvements in therapeutic options. METHODS In this prospective study, 1467 RA patients aged 15 to 88 years (72.5% female, 27.5% male) who had undergone treatment change or were treated with a disease-modifying antirheumatic drug (DMARD) for the first time were analysed. At three consecutive visits (T-1, T0, T1), scores were used to assess disease activity, loss of function, quality of life and imaging. In addition, the impact of the scores on treatment change was addressed (numerical rating scale, 1-10). RESULTS The most commonly used scores were the DAS28 (65% of all visits), the Hanover functional ability questionnaire (FFbH, 36%) and the HAQ (11%). Other scores for evaluating RA are of little relevance in daily practice. No scores were calculated in only 10% of visits. Among the commonly used scores, the DAS28 had the highest influence on therapy decisions, followed by HAQ and FFbH (mean weight 6.62, 4.99 and 4.41, respectively). CONCLUSIONS In daily practice, rheumatologists very often take scores for disease activity (especially DAS28) and loss of physical function into consideration when deciding on treatment for patients with RA. However, scores for measuring structural changes or quality of life, are not yet very well established with German rheumatologists.
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Affiliation(s)
- Olga Malysheva
- University Hospital Leipzig, Department for Gastroenterology and Rheumatology, Rheumatology Unit, Leipzig, Germany
| | - Anne Bedrich
- University Hospital Leipzig, Department for Gastroenterology and Rheumatology, Rheumatology Unit, Leipzig, Germany
| | - J G Kuipers
- Rotes Kreuz Hospital Bremen, Department for Internal Rheumatology, Bremen, Germany
| | | | - Björn Wolff
- AbbVie Deutschland GmbH & Co. KG, Wiesbaden, Germany
| | - Christoph G Baerwald
- University Hospital Leipzig, Department for Gastroenterology and Rheumatology, Rheumatology Unit, Leipzig, Germany
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27
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Perry CA, West AA, Gayle A, Lucas LK, Yan J, Jiang X, Malysheva O, Caudill MA. Pregnancy and lactation alter biomarkers of biotin metabolism in women consuming a controlled diet. J Nutr 2014; 144:1977-84. [PMID: 25122647 PMCID: PMC4230210 DOI: 10.3945/jn.114.194472] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Biotin functions as a cofactor for several carboxylase enzymes with key roles in metabolism. At present, the dietary requirement for biotin is unknown and intake recommendations are provided as Adequate Intakes (AIs). The biotin AI for adults and pregnant women is 30 μg/d, whereas 35 μg/d is recommended for lactating women. However, pregnant and lactating women may require more biotin to meet the demands of these reproductive states. OBJECTIVE The current study sought to quantify the impact of reproductive state on biotin status response to a known dietary intake of biotin. METHODS To achieve this aim, we measured a panel of biotin biomarkers among pregnant (gestational week 27 at study entry; n = 26), lactating (postnatal week 5 at study entry; n = 28), and control (n = 21) women who participated in a 10- to 12-wk feeding study providing 57 μg of dietary biotin/d as part of a mixed diet. RESULTS Over the course of the study, pregnant women excreted 69% more (vs. control; P < 0.001) 3-hydroxyisovaleric acid (3-HIA), a metabolite that accumulates during the catabolism of leucine when the activity of biotin-dependent methylcrotonyl-coenzyme A carboxylase is impaired. Interestingly, urinary excretion of 3-hydroxyisovaleryl-carnitine (3-HIA-carnitine), a downstream metabolite of 3-HIA, was 27% lower (P = 0.05) among pregnant (vs. control) women, a finding that may arise from carnitine inadequacy during gestation. No differences (P > 0.05) were detected in plasma biotin, urinary biotin, or urinary bisnorbiotin between pregnant and control women. Lactating women excreted 76% more (vs. control; P = 0.001) of the biotin catabolite bisnorbiotin, indicating that lactation accelerates biotin turnover and loss. Notably, with respect to control women, lactating women excreted 23% less (P = 0.04) urinary 3-HIA and 26% less (P = 0.05) urinary 3-HIA-carnitine, suggesting that lactation reduces leucine catabolism and that these metabolites may not be useful indicators of biotin status during lactation. CONCLUSIONS Overall, these data demonstrate significant alterations in markers of biotin metabolism during pregnancy and lactation and suggest that biotin intakes exceeding current recommendations are needed to meet the demands of these reproductive states. This trial was registered at clinicaltrials.gov as NCT01127022.
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Affiliation(s)
- Cydne A Perry
- Shepherd University, Shepherdstown, WV; and,Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Allyson A West
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Antoinette Gayle
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Lauren K Lucas
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Jian Yan
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Xinyin Jiang
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
| | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, NY
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28
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Bae S, Ulrich CM, Neuhouser ML, Malysheva O, Bailey LB, Xiao L, Brown EC, Cushing-Haugen KL, Zheng Y, Cheng TYD, Miller JW, Green R, Lane DS, Beresford SAA, Caudill MA. Plasma choline metabolites and colorectal cancer risk in the Women's Health Initiative Observational Study. Cancer Res 2014; 74:7442-52. [PMID: 25336191 DOI: 10.1158/0008-5472.can-14-1835] [Citation(s) in RCA: 166] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Few studies have examined associations between plasma choline metabolites and risk of colorectal cancer. Therefore, we investigated associations between plasma biomarkers of choline metabolism [choline, betaine, dimethylglycine, and trimethylamine N-oxide (TMAO)] and colorectal cancer risk among postmenopausal women in a case-control study nested within the Women's Health Initiative Observational Study. We selected 835 matched case-control pairs, and cases were further stratified by tumor site (proximal, distal, or rectal) and stage (local/regional or metastatic). Colorectal cancer was assessed by self-report and confirmed by medical records over the mean of 5.2 years of follow-up. Baseline plasma choline metabolites were measured by LC/MS-MS. In multivariable-adjusted conditional logistic regression models, plasma choline tended to be positively associated with rectal cancer risk [OR (95% confidence interval, CI)(highest vs. lowest quartile) = 2.44 (0.93-6.40); P trend = 0.08], whereas plasma betaine was inversely associated with colorectal cancer overall [0.68 (0.47-0.99); P trend = 0.01] and with local/regional tumors [0.64 (0.42-0.99); P trend = 0.009]. Notably, the plasma betaine:choline ratio was inversely associated with colorectal cancer overall [0.56 (0.39-0.82); P trend = 0.004] as well as with proximal [0.66 (0.41-1.06); P trend = 0.049], rectal [0.27 (0.10-0.78); P trend = 0.02], and local/regional [0.50 (0.33-0.76); P trend = 0.001] tumors. Finally, plasma TMAO, an oxidative derivative of choline produced by intestinal bacteria, was positively associated with rectal cancer [3.38 (1.25-9.16); P trend = 0.02] and with overall colorectal cancer risk among women with lower (vs. higher) plasma vitamin B12 levels (P interaction = 0.003). Collectively, these data suggest that alterations in choline metabolism, which may arise early in disease development, may be associated with higher risk of colorectal cancer. The positive association between plasma TMAO and colorectal cancer risk is consistent with an involvement of the gut microbiome in colorectal cancer pathogenesis.
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Affiliation(s)
- Sajin Bae
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Cornelia M Ulrich
- Fred Hutchinson Cancer Research Center, Seattle, Washington. German Cancer Research Center and National Center for Tumor Diseases, Heidelberg, Germany. Huntsman Cancer Institute, Salt Lake City, Utah.
| | | | - Olga Malysheva
- Division of Nutritional Sciences, Cornell University, Ithaca, New York
| | - Lynn B Bailey
- Department of Foods and Nutrition, University of Georgia, Athens, Georgia
| | - Liren Xiao
- Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Elissa C Brown
- Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - Yingye Zheng
- Fred Hutchinson Cancer Research Center, Seattle, Washington
| | | | - Joshua W Miller
- Department of Nutritional Sciences, Rutgers University, New Brunswick, New Jersey. Department of Medical Pathology and Laboratory Medicine, University of California, Davis, California
| | - Ralph Green
- Department of Medical Pathology and Laboratory Medicine, University of California, Davis, California
| | - Dorothy S Lane
- Department of Preventive Medicine, Stony Brook University School of Medicine, Stony Brook, New York
| | | | - Marie A Caudill
- Division of Nutritional Sciences, Cornell University, Ithaca, New York.
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Kauwell G, Caudill M, Hausman D, Park HJ, Shade D, Malysheva O, Bailey L. Serum folate and whole blood global DNA methylation response to chronic folic acid supplementation in normal weight and obese women of child‐bearing age (817.2). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.817.2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gail Kauwell
- Food Science and Human Nutrition University of FloridaGainesvilleFLUnited States
| | - Marie Caudill
- Nutritional Sciences Cornell UniversityIthacaNYUnited States
| | - Dorothy Hausman
- Foods and NutritionUniversity of GeorgiaAthensGAUnited States
| | - Hea Jin Park
- Foods and NutritionUniversity of GeorgiaAthensGAUnited States
| | - Deanna Shade
- Foods and NutritionUniversity of GeorgiaAthensGAUnited States
| | - Olga Malysheva
- Nutritional Sciences Cornell UniversityIthacaNYUnited States
| | - Lynn Bailey
- Foods and NutritionUniversity of GeorgiaAthensGAUnited States
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Park HJ, Brannon P, West A, Yan J, Jiang X, Perry C, Malysheva O, Mehta S, Caudill M. Vitamin D status and metabolism in pregnant, lactating, and nonpregnant women consuming controlled intakes of vitamin D (959.7). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.959.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hey Jun Park
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Patsy Brannon
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Allyson West
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Jian Yan
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Xinyin Jiang
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Cydne Perry
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Olga Malysheva
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Saurabh Mehta
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Marie Caudill
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
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Perry C, West A, Yan J, Jiang X, Malysheva O, Caudill M. Plasma and breast milk biotin concentrations decrease in lactating women consuming a dietary biotin intake exceeding current recommendations (827.10). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.827.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cydne Perry
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
- Family and Consumer Sciences Shepherd UniversityShepherdstownWVUnited States
| | - Allyson West
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Jian Yan
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Xinyin Jiang
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Olga Malysheva
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
| | - Marie Caudill
- Division of Nutritional SciencesCornell UniversityITHACANYUnited States
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Visentin C, Masih S, Plumptre L, Malysheva O, Sohn K, Ly A, Lausman A, Berger H, Croxford R, Caudill M, O'Connor D, Kim Y. Dietary intake and blood levels of choline in a cohort of Canadian pregnant women and newborn infants (827.9). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.827.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Carly Visentin
- St. Michael's HospitalTORONTOONCanada
- University of TORONTOTorontoONCanada
| | - Shannon Masih
- St. Michael's HospitalTORONTOONCanada
- University of TORONTOTorontoONCanada
| | - Lesley Plumptre
- St. Michael's HospitalTORONTOONCanada
- University of TORONTOTorontoONCanada
| | | | - Kyoung‐Jin Sohn
- St. Michael's HospitalTORONTOONCanada
- University of TORONTOTorontoONCanada
| | - Anna Ly
- St. Michael's HospitalTORONTOONCanada
- University of TORONTOTorontoONCanada
| | | | | | - Ruth Croxford
- Inst. of Clinical Evaluative SciencesTORONTOONCanada
| | | | | | - Young‐In Kim
- St. Michael's HospitalTORONTOONCanada
- University of TORONTOTorontoONCanada
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Bae S, Ulrich C, Neuhouser M, Malysheva O, Bailey L, Xiao L, Brown E, Zheng Y, Cheng T, Miller J, Lane D, Beresford S, Caudill M. Relationship between plasma choline metabolites and risk of colorectal cancer in the Women's Health Initiative Observational Study (370.5). FASEB J 2014. [DOI: 10.1096/fasebj.28.1_supplement.370.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sajin Bae
- Cornell UniversityIthacaNYUnited States
| | - Cornelia Ulrich
- Fred Hutchinson Cancer Research CenterSeattleWAUnited States
- German Cancer Research Center and National Center for Tumor DiseasesHeidelbergGermany
| | | | | | | | - Liren Xiao
- Fred Hutchinson Cancer Research CenterSeattleWAUnited States
| | - Elissa Brown
- Fred Hutchinson Cancer Research CenterSeattleWAUnited States
| | - Yingye Zheng
- Fred Hutchinson Cancer Research CenterSeattleWAUnited States
| | - Ting‐Yuan Cheng
- Fred Hutchinson Cancer Research CenterSeattleWAUnited States
| | | | - Dorothy Lane
- Stony Brook UniversityStony BrookNYUnited States
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Bae S, Ulrich CM, Bailey LB, Malysheva O, Brown EC, Maneval DR, Neuhouser ML, Cheng TYD, Miller JW, Zheng Y, Xiao L, Hou L, Song X, Buck K, Beresford SAA, Caudill MA. Impact of folic acid fortification on global DNA methylation and one-carbon biomarkers in the Women's Health Initiative Observational Study cohort. Epigenetics 2014; 9:396-403. [PMID: 24300587 PMCID: PMC4053458 DOI: 10.4161/epi.27323] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 11/16/2013] [Accepted: 11/22/2013] [Indexed: 12/31/2022] Open
Abstract
DNA methylation is an epigenetic mechanism that regulates gene expression and can be modified by one-carbon nutrients. The objective of this study was to investigate the impact of folic acid (FA) fortification of the US food supply on leukocyte global DNA methylation and the relationship between DNA methylation, red blood cell (RBC) folate, and other one-carbon biomarkers among postmenopausal women enrolled in the Women's Health Initiative Observational Study. We selected 408 women from the highest and lowest tertiles of RBC folate distribution matching on age and timing of the baseline blood draw, which spanned the pre- (1994-1995), peri- (1996-1997), or post-fortification (1998) periods. Global DNA methylation was assessed by liquid chromatography-tandem mass spectrometry and expressed as a percentage of total cytosine. We observed an interaction (P = 0.02) between fortification period and RBC folate in relation to DNA methylation. Women with higher (vs. lower) RBC folate had higher mean DNA methylation (5.12 vs. 4.99%; P = 0.05) in the pre-fortification period, but lower (4.95 vs. 5.16%; P = 0.03) DNA methylation in the post-fortification period. We also observed significant correlations between one-carbon biomarkers and DNA methylation in the pre-fortification period, but not in the peri- or post-fortification period. The correlation between plasma homocysteine and DNA methylation was reversed from an inverse relationship during the pre-fortification period to a positive relationship during the post-fortification period. Our data suggest that (1) during FA fortification, higher RBC folate status is associated with a reduction in leukocyte global DNA methylation among postmenopausal women and; (2) the relationship between one-carbon biomarkers and global DNA methylation is dependent on folate availability.
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Affiliation(s)
- Sajin Bae
- Division of Nutritional Sciences; Cornell University; Ithaca, NY USA
| | - Cornelia M Ulrich
- Fred Hutchinson Cancer Research Center; Seattle, WA USA
- German Cancer Research Center and National Center for Tumor Diseases; Heidelberg, Germany
| | - Lynn B Bailey
- Department of Foods and Nutrition; University of Georgia; Athens, GA USA
| | - Olga Malysheva
- Division of Nutritional Sciences; Cornell University; Ithaca, NY USA
| | | | - David R Maneval
- Food Science and Human Nutrition Department; University of Florida; Gainesville, FL USA
| | | | | | - Joshua W Miller
- Department of Nutritional Sciences; Rutgers University; New Brunswick, NJ USA
- Department of Medical Pathology and Laboratory Medicine; University of California; Davis, CA USA
| | - Yingye Zheng
- Fred Hutchinson Cancer Research Center; Seattle, WA USA
| | - Liren Xiao
- Fred Hutchinson Cancer Research Center; Seattle, WA USA
| | - Lifang Hou
- Department of Preventive Medicine and Robert H. Lurie Comprehensive Cancer; Northwestern University; Chicago, IL USA
| | - Xiaoling Song
- Fred Hutchinson Cancer Research Center; Seattle, WA USA
| | - Katharina Buck
- German Cancer Research Center and National Center for Tumor Diseases; Heidelberg, Germany
| | | | - Marie A Caudill
- Division of Nutritional Sciences; Cornell University; Ithaca, NY USA
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Gevorkov A, Boyko A, Zavalishina L, Chernichenko A, Reshetov I, Plavnik R, Khmelevsky E, Rubtsova N, Malysheva O, Gladyshev A. EP-1113: Prediction of radiation treatment outcome in patients with tongue cancer. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31231-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Malysheva O, Esber A, Baerwald G. Änderungen des autonomen Nervensystems bei rheumatoider Arthritis. AKTUEL RHEUMATOL 2013. [DOI: 10.1055/s-0033-1351305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- O. Malysheva
- Sektion Rheumatologie, Universitätsklinikum Leipzig
| | - A. Esber
- Sektion Rheumatologie, Universitätsklinikum Leipzig
| | - G. Baerwald
- Sektion Rheumatologie, Universitätsklinikum Leipzig
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37
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Krausslach O, Malysheva O, Arnold S, Baerwald CGO. AB0423 Impact of fibromyalgia on perceived pain in patients with systemic lupus erythematosus. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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38
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Malysheva O, Ivanov P, Arnold S, Liebert U, Baerwald C. SAT0540 Monitoring of Vaccination Status in Patients with Rheumatic Diseases. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.2264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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39
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Malysheva O, Baerwald C. AB0027 Impact of additional genetic markers of rheumatoid arthritis on pattern of functional stress responses. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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40
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Bae S, Caudill MA, Bailey LB, Malysheva O, Miller JW, Brown EC, Neuhouser ML, Maneval D, Cheng TD, Hou L, Beresford SAA, Song X, Zheng Y, Buck K, Ulrich CM. Relationship between leukocyte global DNA methylation and RBC folate in the Women's Health Initiative Observational Study (WHI‐OS). FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1077.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Katharina Buck
- German Cancer Research Center and National Center for Tumor DiseasesHeidelbergGermany
| | - Cornelia M Ulrich
- Fred Hutchinson Cancer Research CenterSeattleWA
- German Cancer Research Center and National Center for Tumor DiseasesHeidelbergGermany
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41
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Davenport C, Shields K, Yan J, Jiang X, Malysheva O, Caudill M, Stabler S, Allen R. Influence of lactation and choline intake on one‐carbon biomarkers in women. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1077.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Kelsey Shields
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Jian Yan
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Xinyin Jiang
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Olga Malysheva
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Marie Caudill
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Sally Stabler
- Division of HematologyUniversity of Colorado DenverAuroraCO
| | - Robert Allen
- Division of HematologyUniversity of Colorado DenverAuroraCO
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42
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Jadavji NM, Deng L, Leclerc D, Malysheva O, Bedell BJ, Caudill MA, Rozen R. Severe methylenetetrahydrofolate reductase deficiency in mice results in behavioral anomalies with morphological and biochemical changes in hippocampus. Mol Genet Metab 2012; 106:149-59. [PMID: 22521626 DOI: 10.1016/j.ymgme.2012.03.020] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Revised: 03/26/2012] [Accepted: 03/26/2012] [Indexed: 11/21/2022]
Abstract
The brain is particularly sensitive to folate metabolic disturbances, since methyl groups are critical for its functions. Methylenetetrahydrofolate reductase (MTHFR) generates the primary circulatory form of folate required for homocysteine remethylation to methionine. Neurological disturbances have been described in homocystinuria caused by severe MTHFR deficiency. The goal of this study was to determine if behavioral anomalies are present in severe Mthfr-deficient (Mthfr(-/-)) mice and to identify neurobiological changes that could contribute to these anomalies. Adult male mice of 3 Mthfr genotypes (+/+, +/-, -/-) were tested on motor, anxiety, exploratory and cognitive tasks. Volumes (whole brain and hippocampus) and morphology, global DNA methylation, apoptosis, expression of choline acetyltransferase (ChAT) and glucocorticoid receptor (GR), and concentrations of choline metabolites were assessed in hippocampus. Mthfr(-/-) mice had impairments in motor function and in short- and long-term memory, increased exploratory behavior and decreased anxiety. They showed decreased whole brain and hippocampal volumes, reduced thickness of the pyramidal cell layer of CA1 and CA3, and increased apoptosis in hippocampus. There was a disturbance in choline metabolism as manifested by differences in acetylcholine, betaine or glycerophosphocholine concentrations, and by increased ChAT levels. Mthfr(-/-) mice also had increased GR mRNA and protein. Our study has revealed significant anomalies in affective behavior and impairments in memory of Mthfr(-/-) mice. We identified structural changes, increased apoptosis, altered choline metabolism and GR dysregulation in hippocampus. These findings, as well as some similar observations in cerebellum, could contribute to the behavioral changes and suggest that choline is a critical metabolite in homocystinuria.
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Affiliation(s)
- Nafisa M Jadavji
- Department of Human Genetics, McGill University, Montreal Children's Hospital Research Institute, 4060 Ste. Catherine West, Montreal, Canada H3Z 2Z3.
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Malysheva O, Wagner U, Wahle M, Wagner U, Stalla GK, Baerwald CGO. Corticotropin releasing hormone (CRH) response in patients with early rheumatoid arthritis due to polymorphisms in the CRH gene. Clin Exp Rheumatol 2012; 30:421-423. [PMID: 22703673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2011] [Accepted: 12/13/2011] [Indexed: 06/01/2023]
Abstract
OBJECTIVES To further evaluate the impact of corticotropin releasing hormone (CRH) promoter polymorphisms on the stress response in rheumatoid arthritis (RA) patients an insulin hypoglycaemia test (IHT) was performed studying the dynamics of CRH production. METHODS Polymorphisms of the human CRH promoter were determined in controls and cortisol naive patients with early RA. Serum glucose and plasma CRH were measured at baseline and up to 120 min following induction of hypoglycemia. RESULTS During IHT RA patients bearing the A2B2 allele exhibited an earlier CRH response compared to A1B1 positive patients. CONCLUSIONS Stress-induced response of CRH is differentially modulated by CRH promoter polymorphisms in RA patients.
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Affiliation(s)
- O Malysheva
- Rheumatology Unit, Department of Medicine, University Hospital, Leipzig, Germany.
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Jiang X, Yan J, West A, Perry C, Malysheva O, Bar H, Wells M, Devapatla S, Pressman E, Caudill M. Pregnancy status and choline intake alter DNA integrity, epigenetic marks and gene expression. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.116.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xinyin Jiang
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Jian Yan
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Allyson West
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Cydne Perry
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Olga Malysheva
- Division of Nutritional SciencesCornell UniversityIthacaNY
| | - Haim Bar
- Statistical ScienceCornell UniversityIthacaNY
| | | | | | - Eva Pressman
- Obstetrics and GynecologyUniversity of Rochester Medical CenterRochesterNY
| | - Marie Caudill
- Division of Nutritional SciencesCornell UniversityIthacaNY
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Beaudin AE, Abarinov EV, Malysheva O, Perry CA, Caudill M, Stover PJ. Dietary folate, but not choline, modifies neural tube defect risk in Shmt1 knockout mice. Am J Clin Nutr 2012; 95:109-14. [PMID: 22134951 PMCID: PMC3238454 DOI: 10.3945/ajcn.111.020305] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Low dietary choline intake has been proposed to increase the risk of neural tube defects (NTDs) in human populations. Mice with reduced Shmt1 expression exhibit a higher frequency of NTDs when placed on a folate- and choline-deficient diet and may represent a model of human NTDs. The individual contribution of dietary folate and choline deficiency to NTD incidence in this mouse model is not known. OBJECTIVE To dissociate the effects of dietary folate and choline deficiency on Shmt1-related NTD sensitivity, we determined NTD incidence in embryos from Shmt1-null dams fed diets deficient in either folate or choline. DESIGN Shmt1(+/+) and Shmt1(-/-) dams were maintained on a standard AIN93G diet (Dyets), an AIN93G diet lacking folate (FD), or an AIN93G diet lacking choline (CD). Virgin Shmt1(+/+) and Shmt1(-/-) dams were crossed with Shmt1(+/-) males, and embryos were examined for the presence of NTDs at embryonic day (E) 11.5 or E12.5. RESULTS Exencephaly was observed only in Shmt1(-/-) embryos isolated from dams maintained on the FD diet (P = 0.004). Approximately 33% of Shmt1(-/-)embryos (n = 18) isolated from dams maintained on the FD diet exhibited exencephaly. NTDs were not observed in any embryos isolated from dams maintained on the CD (n = 100) or control (n = 152) diets or in any Shmt1(+/+) (n = 78) or Shmt1(+/-) embryos (n = 182). CONCLUSION Maternal folate deficiency alone is sufficient to induce NTDs in response to embryonic Shmt1 disruption.
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Affiliation(s)
- Anna E Beaudin
- Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
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46
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Malysheva O, Baerwald CG. Low-dose corticosteroids and disease modifying drugs in patients with rheumatoid arthritis. Clin Exp Rheumatol 2011; 29:S113-S115. [PMID: 22018195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Accepted: 09/15/2011] [Indexed: 05/31/2023]
Abstract
Low-dose glucocorticoids (GCs) exhibit a differential effect on continuation of disease-modifying anti-rheumatic drugs (DMARDs), and the degree of adverse effects (AE) associated with DMARDs. Therefore, GCs address important problems in DMARD use in rheumatoid arthritis (RA), i.e. cumulative toxicity and frequent AE. Low-dose GCs often are recommended to achieve a better symptomatic control or as 'bridge therapy' before the onset of action of DMARDs. RA patients with GC co-medication had better radiographic outcomes but experienced more GC-related AE. Further long-term studies are needed to focus on timing of administration, duration and identification of risk factors for developing AE to establish the optimal use of GCs in the treatment of RA.
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Li J, Li XM, Caudill M, Malysheva O, Bardag-Gorce F, Oliva J, French BA, Gorce E, Morgan K, Kathirvel E, Morgan T, French SW. Betaine feeding prevents the blood alcohol cycle in rats fed alcohol continuously for 1 month using the rat intragastric tube feeding model. Exp Mol Pathol 2011; 91:540-7. [PMID: 21708146 DOI: 10.1016/j.yexmp.2011.05.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2011] [Accepted: 05/26/2011] [Indexed: 12/15/2022]
Abstract
BACKGROUND Blood alcohol levels (BAL) cycle up and down over a 7-8 day period when ethanol is fed continuously for one month in the intragastric tube feeding rat model (ITFRM) of alcoholic liver disease. The cycling phenomenon is due to an alternating increase and decrease in the metabolic rate. Recently, we found that S-adenosyl-methionine (SAMe) fed with alcohol prevented the BAL cycle. METHOD Using the ITFRM we fed rats betaine (2 g/kg/day) with ethanol for 1 month and recorded the daily 24 h urine ethanol level (UAL) to measure the BAL cycle. UAL is equivalent to BAL because of the constant ethanol infusion. Liver histology, steatosis and BAL were measured terminally after 1 month of treatment. Microarray analysis was done on the mRNA extracted from the liver to determine the effects of betaine and alcohol on changes in gene expression. RESULTS Betaine fed with ethanol completely prevented the BAL cycle similar to SAMe. Betaine also significantly reduced the BAL compared to ethanol fed rats without betaine. This was also observed when SAMe was fed with ethanol. The mechanism involved in both cases is that SAMe is required for the conversion of epinephrine from norepinephrine by phenylethanolamine methyltransferase (PNMT). Epinephrine is 5 to 10 fold more potent than norepinephrine in increasing the metabolic rate. The increase in the metabolic rate generates NAD, permitting ADH to increase the oxidation of alcohol. NAD is the rate limiting factor in oxidation of alcohol by alcohol dehydrogenase (ADH). This explains how SAMe and betaine prevented the cycle. Microarray analysis showed that betaine feeding prevented the up regulation of a large number of genes including TLR2/4, Il-1b, Jax3, Sirt3, Fas, Ifngr1, Tgfgr2, Tnfrsf21, Lbp and Stat 3 which could explain how betaine prevented fatty liver. CONCLUSION Betaine feeding lowers the BAL and prevents the BAL cycle by increasing the metabolic rate. This increases the rate of ethanol elimination by generating NAD.
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Affiliation(s)
- J Li
- Harbor-UCLA Medical Center, Torrance, CA 90509, USA
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Malysheva O, Wagner U, Wahle M, Pierer M, Wagner U, Stalla GK, Baerwald CGO. Hypothalamic-pituitary-adrenal axis stress test in patients with early RA: role of corticotropin-releasing hormone promoter polymorphisms. Ann Rheum Dis 2011; 70:2058-9. [DOI: 10.1136/ard.2011.151340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Jiang X, Yan J, West A, Perry C, Malysheva O, Bar H, Wells M, Devapatla S, Pressman E, Caudill M. A higher maternal choline intake favorably alters placental gene expression of biological pathways related to disease risk. FASEB J 2011. [DOI: 10.1096/fasebj.25.1_supplement.599.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Jian Yan
- Division of Nutritional Sciences
| | | | | | | | - Haim Bar
- Department of StatisticsCornell UniversityIthacaNY
| | - Martin Wells
- Department of StatisticsCornell UniversityIthacaNY
| | | | - Eva Pressman
- Obstetrics and GynecologyUniversity of Rochester Medical CenterRochesterNY
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Yan J, Wang W, Gregory JF, Malysheva O, Brenna JT, Stabler SP, Allen RH, Caudill MA. MTHFR C677T genotype influences the isotopic enrichment of one-carbon metabolites in folate-compromised men consuming d9-choline. Am J Clin Nutr 2011; 93:348-55. [PMID: 21123458 PMCID: PMC3021427 DOI: 10.3945/ajcn.110.005975] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Homozygosity for the variant 677T allele in the methylenetetrahydrofolate reductase (MTHFR) gene increases the requirement for folate and may alter the metabolic use of choline. The choline adequate intake is 550 mg/d for men, although the metabolic consequences of consuming extra choline are unclear. OBJECTIVE Deuterium-labeled choline (d9-choline) as tracer was used to determine the differential effects of the MTHFR C677T genotype and the effect of various choline intakes on the isotopic enrichment of choline derivatives in folate-compromised men. DESIGN Mexican American men with the MTHFR 677CC or 677TT genotype consumed a diet providing 300 mg choline/d plus supplemental choline chloride for total choline intakes of 550 (n = 11; 4 with 677CC and 7 with 677TT) or 1100 (n = 12; 4 with 677CC and 8 with 677TT) mg/d for 12 wk. During the last 3 wk, 15% of the total choline intake was provided as d9-choline. RESULTS Low but measurable enrichments of the choline metabolites were achieved, including that of d3-phosphatidylcholine (d3-PtdCho)--a metabolite produced in the de novo pathway via choline-derived methyl groups. Men with the MTHFR 677TT genotype had a higher urinary enrichment ratio of betaine to choline (P = 0.041), a higher urinary enrichment of sarcosine (P = 0.041), and a greater plasma enrichment ratio of d9-betaine to d9-PtdCho with the 1100 mg choline/d intake (P = 0.033). CONCLUSION These data show for the first time in humans that choline itself is a source of methyl groups for de novo PtdCho biosynthesis and indicate that the MTHFR 677TT genotype favors the use of choline as a methyl donor.
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Affiliation(s)
- Jian Yan
- Division of Nutritional Sciences and Genomics, Cornell University, Ithaca, NY 14853, USA
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