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Hasken JM, de Vries MM, Marais AS, May PA. Contribution of ferritin and zinc to adverse infant outcomes among pregnancies with prenatal alcohol exposure in South Africa. Reprod Toxicol 2024; 127:108606. [PMID: 38795788 PMCID: PMC11325234 DOI: 10.1016/j.reprotox.2024.108606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 04/26/2024] [Accepted: 05/04/2024] [Indexed: 05/28/2024]
Abstract
Nutritional status during pregnancy can impact fetal development, yet less is known about how alcohol may interact with nutritional status to influence infant outcomes. Pregnant women (n=196) completed 2, 24-hour dietary recalls and provided a venous blood sample to be analyzed for liver enzymes (GGT -gamma-glutamyl transferase; ALT -alanine transaminase; and AST -aspartate transferase), iron, ferritin, and zinc concentrations. Infants were assessed at 6 weeks of age. Women who consumed alcohol had significantly higher ferritin levels compared to non-drinkers (51.8 vs. 34.2). While 44% of women had ferritin <30 ug/L (an indicator of iron deficiency), and 24% of women were low in serum iron, and 72% were low in serum zinc. All six drinking measures for 1st trimester and previous week were significantly correlated with GGT and AST levels while 4 out of 6 alcohol measures were associated with levels of ALT and ferritin. At six weeks of age, nearly all physical measures differentiated infants with alcohol exposure from infants without exposure. Controlling for six covariates, maternal ferritin was significantly and inversely associated with infant head circumference (OFC) centile among infants with alcohol exposure. GGT was inversely associated with infant height and weight centile among unexposed infants. Seventy-four percent (74%) of mothers who consumed alcohol were found to be low in serum zinc, yet higher maternal zinc was associated with more dysmorphology. This may indicate that higher zinc status is not protecting the fetus from the teratogenic effects of alcohol. Prenatal alcohol exposure, ferritin, and zinc status influence infant growth and neurodevelopment.
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Affiliation(s)
- Julie M Hasken
- University of North Carolina at Chapel Hill, Nutrition Research Institute, USA.
| | | | - Anna-Susan Marais
- Stellenbosch University, Faculty of Medicine and Health Sciences, USA
| | - Philip A May
- University of North Carolina at Chapel Hill, Nutrition Research Institute, USA; Stellenbosch University, Faculty of Medicine and Health Sciences, USA; University of New Mexico, Center on Alcohol, Substance Use, and Additions, USA
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2
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Latunde-Dada GO. Iron Intake and Human Health. Nutrients 2024; 16:206. [PMID: 38257099 PMCID: PMC10819490 DOI: 10.3390/nu16020206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 12/28/2023] [Indexed: 01/24/2024] Open
Abstract
Iron deficiency anemia (IDA) is a global nutritional disorder affecting large population groups in varying magnitudes in different countries [...].
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Affiliation(s)
- Gladys O Latunde-Dada
- Department of Nutritional Sciences, School of Life Course and Population Sciences, King's College London, London SE1 9NH, UK
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3
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Masehi-Lano JJ, Deyssenroth M, Jacobson SW, Jacobson JL, Molteno CD, Dodge NC, Wainwright HC, Meintjes EM, Lesseur C, Cheng H, Li Q, Hao K, Chen J, Carter RC. Alterations in Placental Inflammation-Related Gene Expression Partially Mediate the Effects of Prenatal Alcohol Consumption on Maternal Iron Homeostasis. Nutrients 2023; 15:4105. [PMID: 37836388 PMCID: PMC10574168 DOI: 10.3390/nu15194105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/14/2023] [Accepted: 09/19/2023] [Indexed: 10/15/2023] Open
Abstract
Prenatal alcohol exposure (PAE) is associated with alterations in maternal and infant iron homeostasis that are consistent with changes seen in the setting of inflammation. We hypothesized that PAE leads to alterations in the placental expression of genes related to iron metabolism and inflammation that play functional roles in the teratogenic effects of alcohol on iron homeostasis. A total of 126 heavy-drinking women (≥1 oz (30 mL) absolute alcohol/day (~1.67 standard drinks/day) or women reporting binge drinking (≥2 drinks/occasion)) and 80 control women (<0.5 oz AA per day, no binging) in Cape Town, South Africa were interviewed prenatally regarding demographics, and alcohol, smoking, and drug use around conception and during pregnancy. Prenatal/maternal and infant hemoglobin and ferritin were measured. Whole-transcriptome RNA sequencing analysis was performed on flash-frozen transplacental tissue samples. Gene sets related to iron metabolism (n = 398) and inflammation (n = 467) were constructed by searching the Molecular Signatures Database for related ontology terms. Principal component analysis (PCA) yielded 59 factors for each theme. In multivariable regression models, PAE was related to 2 iron metabolism PCA factors (PCs) and 5 inflammation PCs, among which 2 iron metabolism and 4 inflammation factors were related to at least 1 key maternal or infant iron outcome. In causal inference analyses based on marginal structural models and the product method, the alterations in the expression profile of genes with functions in immune cell regulation, cytokine activity, angiogenesis, hematopoiesis, and ubiquitous cell processes appeared to partially mediate the relation of prenatal drinking frequency (days/week) around conception to a lower maternal hemoglobin-to-log(ferritin) ratio (proportion mediation = 51.35%). These findings suggest that placental inflammation may be partly responsible for the differences in alcohol-related iron homeostasis patterns between pregnant and non-pregnant adults.
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Affiliation(s)
- Jacqueline J. Masehi-Lano
- Institute of Human Nutrition and Departments of Emergency Medicine and Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Maya Deyssenroth
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Sandra W. Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
- Department of Psychiatry and Mental Health, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Joseph L. Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Christopher D. Molteno
- Department of Psychiatry and Mental Health, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Neil C. Dodge
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Helen C. Wainwright
- Department of Pathology, National Health Laboratory Service, Cape Town 7925, South Africa;
| | - Ernesta M. Meintjes
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Corina Lesseur
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Haoxiang Cheng
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Qian Li
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Ke Hao
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jia Chen
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - R. Colin Carter
- Institute of Human Nutrition and Departments of Emergency Medicine and Pediatrics, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
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4
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Bunner W, Wang J, Cohen S, Bashtovyy D, Perry R, Shookster D, Landry T, Harris EM, Stackman R, Tran TD, Yasuda R, Szatmari EM. Behavioral and Transcriptome Profiling of Heterozygous Rab10 Knock-Out Mice. eNeuro 2023; 10:ENEURO.0459-22.2023. [PMID: 37156612 PMCID: PMC10208283 DOI: 10.1523/eneuro.0459-22.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 05/10/2023] Open
Abstract
A central question in the field of aging research is to identify the cellular and molecular basis of neuroresilience. One potential candidate is the small GTPase, Rab10. Here, we used Rab10+/- mice to investigate the molecular mechanisms underlying Rab10-mediated neuroresilience. Brain expression analysis of 880 genes involved in neurodegeneration showed that Rab10+/- mice have increased activation of pathways associated with neuronal metabolism, structural integrity, neurotransmission, and neuroplasticity compared with their Rab10+/+ littermates. Lower activation was observed for pathways involved in neuroinflammation and aging. We identified and validated several differentially expressed genes (DEGs), including Stx2, Stx1b, Vegfa, and Lrrc25 (downregulated) and Prkaa2, Syt4, and Grin2d (upregulated). Behavioral testing showed that Rab10+/- mice perform better in a hippocampal-dependent spatial task (object in place test), while their performance in a classical conditioning task (trace eyeblink classical conditioning, TECC) was significantly impaired. Therefore, our findings indicate that Rab10 differentially controls the brain circuitry of hippocampal-dependent spatial memory and higher-order behavior that requires intact cortex-hippocampal circuitry. Transcriptome and biochemical characterization of these mice suggest that glutamate ionotropic receptor NMDA type subunit 2D (GRIN2D or GluN2D) is affected by Rab10 signaling. Further work is needed to evaluate whether GRIN2D mediates the behavioral phenotypes of the Rab10+/- mice. We conclude that Rab10+/- mice described here can be a valuable tool to study the mechanisms of resilience in Alzheimer's disease (AD) model mice and to identify novel therapeutical targets to prevent cognitive decline associated with normal and pathologic aging.
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Affiliation(s)
- Wyatt Bunner
- Department of Physical Therapy, East Carolina University, Greenville, NC 27834
| | - Jie Wang
- Max Planck Florida Institute for Neuroscience, Jupiter, FL 33458
| | - Sarah Cohen
- Jupiter Life Science Initiative, Florida Atlantic University, Jupiter, FL 33458
| | - Denys Bashtovyy
- Department of Physical Therapy, East Carolina University, Greenville, NC 27834
| | - Rachel Perry
- Department of Physical Therapy, East Carolina University, Greenville, NC 27834
| | | | - Taylor Landry
- Department of Kinesiology, East Carolina University, NC 27858
| | - Elizabeth M Harris
- Department of Psychology, East Carolina University, Greenville, NC 27858
| | - Robert Stackman
- Jupiter Life Science Initiative, Florida Atlantic University, Jupiter, FL 33458
| | - Tuan D Tran
- Department of Psychology, East Carolina University, Greenville, NC 27858
| | - Ryohei Yasuda
- Max Planck Florida Institute for Neuroscience, Jupiter, FL 33458
| | - Erzsebet M Szatmari
- Department of Physical Therapy, East Carolina University, Greenville, NC 27834
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Edwards AC, Jacobson SW, Senekal M, Dodge NC, Molteno CD, Meintjes EM, Jacobson JL, Carter RC. Fetal Alcohol-Related Postnatal Growth Restriction Is Independent of Infant Feeding Practices and Postnatal Alcohol Exposure in a Prospective South African Birth Cohort. Nutrients 2023; 15:2018. [PMID: 37432143 DOI: 10.3390/nu15092018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/04/2023] [Accepted: 04/13/2023] [Indexed: 07/12/2023] Open
Abstract
Prenatal alcohol exposure (PAE) causes growth restriction that worsens in the first year of life. However, the roles of postnatal nutrition in fetal alcohol growth restriction and the impact of postnatal alcohol exposure via breastmilk on growth remain unknown. We aimed to compare infant feeding practices during the first 6.5 months of life between heavy drinkers and abstainers/light drinkers, to examine whether these practices play confounding roles in fetal alcohol growth restriction, and to determine the impact of postnatal alcohol exposure via breastmilk on growth. Eighty-seven heavy-drinking pregnant women and 71 abstainers/light drinkers (controls) were recruited prenatally from antenatal clinics in Cape Town, South Africa. Demographic background and alcohol, cigarette, marijuana, and methamphetamine use during pregnancy were assessed pre- and postnatally. Infant feeding practices were assessed at 6.5 months postpartum using the USDA Infant Feeding Questionnaire. Infant weight, length, and head circumference were measured at 2 weeks, 6.5 and 12 months, and 5 years. Neither prenatal nor postnatal alcohol consumption was related to the duration of breastfeeding, exclusive breastfeeding, exclusive formula, or mixed feeding. Complementary feeding practices were remarkably similar between exposure groups. PAE was related to all postnatal anthropometry measures at all age points, independent of infant feeding practices. Postnatal alcohol exposure via breastmilk was unrelated to any anthropometry outcome after control for PAE. In conclusion, fetal alcohol-related postnatal growth restriction was not attributable to differences in postnatal infant feeding practices or postnatal alcohol exposure and is thus likely a direct teratogenic effect of PAE.
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Affiliation(s)
- Alexia C Edwards
- Departments of Emergency Medicine and Pediatrics, Institute of Human Nutrition, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
- Adult & Pediatric Intensive Care Units, State University of New York Downstate Medical Center, Brooklyn, NY 11203, USA
| | - Sandra W Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
- Department of Psychiatry and Mental Health, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Marjanne Senekal
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Neil C Dodge
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Christopher D Molteno
- Department of Psychiatry and Mental Health, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Ernesta M Meintjes
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Joseph L Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - R Colin Carter
- Departments of Emergency Medicine and Pediatrics, Institute of Human Nutrition, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
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6
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Holloway KN, Douglas JC, Rafferty TM, Majewska AK, Kane CJM, Drew PD. Ethanol-induced cerebellar transcriptomic changes in a postnatal model of fetal alcohol spectrum disorders: Focus on disease onset. Front Neurosci 2023; 17:1154637. [PMID: 37008214 PMCID: PMC10062483 DOI: 10.3389/fnins.2023.1154637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 02/27/2023] [Indexed: 03/18/2023] Open
Abstract
Fetal alcohol spectrum disorders (FASD) are a group of neurodevelopmental disorders caused by ethanol exposure in utero, which can result in neurocognitive and behavioral impairments, growth defects, and craniofacial anomalies. FASD affects up to 1-5% of school-aged children in the United States, and there is currently no cure. The underlying mechanisms involved in ethanol teratogenesis remain elusive and need greater understanding to develop and implement effective therapies. Using a third trimester human equivalent postnatal mouse model of FASD, we evaluate the transcriptomic changes induced by ethanol exposure in the cerebellum on P5 and P6, after only 1 or 2 days of ethanol exposure, with the goal of shedding light on the transcriptomic changes induced early during the onset and development of FASD. We have highlighted key pathways and cellular functions altered by ethanol exposure, which include pathways related to immune function and cytokine signaling as well as the cell cycle. Additionally, we found that ethanol exposure resulted in an increase in transcripts associated with a neurodegenerative microglia phenotype, and acute- and pan-injury reactive astrocyte phenotypes. Mixed effects on oligodendrocyte lineage cell associated transcripts and cell cycle associated transcripts were observed. These studies help to elucidate the underlying mechanisms that may be involved with the onset of FASD and provide further insights that may aid in identifying novel targets for interventions and therapeutics.
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Affiliation(s)
- Kalee N. Holloway
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - James C. Douglas
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Tonya M. Rafferty
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Ania K. Majewska
- Department of Neuroscience, University of Rochester Medical Center, Rochester, NY, United States
| | - Cynthia J. M. Kane
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
| | - Paul D. Drew
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
- Department of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, United States
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7
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Helfrich KK, Saini N, Kwan STC, Rivera OC, Mooney SM, Smith SM. Fetal anemia and elevated hepcidin in a mouse model of fetal alcohol spectrum disorder. Pediatr Res 2023:10.1038/s41390-023-02469-6. [PMID: 36702950 DOI: 10.1038/s41390-023-02469-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 12/19/2022] [Accepted: 01/01/2023] [Indexed: 01/27/2023]
Abstract
INTRODUCTION Prenatal alcohol exposure (PAE) impairs offspring growth and cognition, and this is worsened by concurrent iron deficiency. Alcohol disrupts fetal iron metabolism and produces functional iron deficiency, even when maternal iron status is adequate. We used a mouse model of moderate PAE to investigate the mechanisms underlying this dysregulated iron status. METHODS C57BL/6J female mice received 3 g/kg alcohol daily from embryonic day (E) 8.5-17.5 and were assessed at E17.5. RESULTS Alcohol reduced fetal hemoglobin, hematocrit, and red blood cell counts, despite elevated erythropoietin production. Alcohol suppressed maternal hepcidin expression and the upstream iron-sensing BMP/SMAD pathway, consistent with its effects in the nonpregnant state. In contrast, alcohol elevated fetal hepcidin, although this was not accompanied by an upregulation of the BMP/SMAD or proinflammatory IL-6/STAT3 pathways. Fetal expression of hepatic genes contributing to hemoglobin synthesis and iron metabolism were unaffected by alcohol, whereas those affecting ribosome biogenesis were suppressed, suggesting a novel candidate effector for this fetal anemia. CONCLUSION These data confirm and extend prior observations that PAE disrupts maternal and fetal iron metabolism and impairs the fetus's ability to regulate iron status. We propose this dysregulation increases gestational iron needs and represents a conserved response to PAE. IMPACT Prenatal alcohol exposure causes a functional iron deficiency in a model that also impairs cognition in later life. Prenatal alcohol exposure causes fetal anemia. This fetal anemia is accompanied by elevated hepcidin and erythropoietin. Findings are consistent with prior observations that prenatal alcohol exposure increases maternal-fetal iron requirements during pregnancy.
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Affiliation(s)
- Kaylee K Helfrich
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA.,Department of Nutrition, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA
| | - Nipun Saini
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA
| | - Sze Ting Cecilia Kwan
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA
| | - Olivia C Rivera
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA
| | - Sandra M Mooney
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA.,Department of Nutrition, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA
| | - Susan M Smith
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA. .,Department of Nutrition, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, USA.
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Carter RC, Dodge NC, Molteno CD, Meintjes EM, Jacobson JL, Jacobson SW. Mediating and Moderating Effects of Iron Homeostasis Alterations on Fetal Alcohol-Related Growth and Neurobehavioral Deficits. Nutrients 2022; 14:nu14204432. [PMID: 36297115 PMCID: PMC9607139 DOI: 10.3390/nu14204432] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/03/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
We have previously demonstrated prenatal alcohol exposure (PAE)-related alterations in maternal and infant iron homeostasis. Given that early iron deficiency and PAE both lead to growth restriction and deficits in recognition memory and processing speed, we hypothesized that PAE-related iron homeostasis alterations may mediate and/or moderate effects of PAE on growth and neurobehavior. We examined this hypothesis in a prenatally recruited, prospective longitudinal birth cohort [87 mother-infant pairs with heavy prenatal alcohol exposure (mean = 7.2 drinks/occasion on 1.4 days/week); 71 controls], with serial growth measures and infant neurobehavioral assessments. PAE was related to growth restriction at 2 weeks and 5 years, and, in infancy, poorer visual recognition memory, slower processing speed, lower complexity of symbolic play, and higher emotionality and shyness on a parental report temperament scale. Lower maternal hemoglobin-to-log(ferritin) ratio, which we have shown to be associated with PAE, appeared to exacerbate PAE-related 2-week head circumference reductions, and elevated maternal ferritin, which we have shown to be associated with PAE, appeared to exacerbate PAE-related visual recognition memory deficits. In causal inference analyses, PAE-related elevations in maternal ferritin and hemoglobin:log(ferritin) appeared to statistically mediate 22.6-82.3% of PAE-related growth restriction. These findings support potential mechanistic roles of iron homeostasis alterations in fetal alcohol spectrum disorders (FASD).
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Affiliation(s)
- R. Colin Carter
- Departments of Emergency Medicine and Pediatrics, Institute of Human Nutrition, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
- Correspondence:
| | - Neil C. Dodge
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Christopher D. Molteno
- Department of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
| | - Ernesta M. Meintjes
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
| | - Joseph L. Jacobson
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Sandra W. Jacobson
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town 7925, South Africa
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
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Bradley R, Lakpa KL, Burd M, Mehta S, Katusic MZ, Greenmyer JR. Fetal Alcohol Spectrum Disorder and Iron Homeostasis. Nutrients 2022; 14:4223. [PMID: 36296909 PMCID: PMC9607572 DOI: 10.3390/nu14204223] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/06/2022] [Accepted: 10/08/2022] [Indexed: 09/19/2023] Open
Abstract
Prenatal alcohol exposure results in a spectrum of behavioral, cognitive, and morphological abnormalities collectively referred to as fetal alcohol spectrum disorder (FASD). FASD presents with significant phenotypic variability and may be modified by gestational variables such as maternal nutritional status. Iron serves a critical function in the development of and processes within central nervous system (CNS) structures. Gestational iron deficiency alters CNS development and may contribute to neurodevelopmental impairment in FASD. This review explores the relationship between iron deficiency and fetal alcohol spectrum disorder as described in small animal and human studies. Consideration is given to the pathophysiologic mechanisms linking iron homeostasis and prenatal alcohol exposure. Existing data suggest that iron deficiency contributes to the severity of FASD and provide a mechanistic explanation linking these two conditions.
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Affiliation(s)
- Regan Bradley
- School of Medicine, University of North Dakota, Grand Forks, ND 58201, USA
| | - Koffi L. Lakpa
- School of Medicine and Public Health, University of Wisconsin, Madison, WI 53706, USA
| | - Michael Burd
- School of Medicine, University of North Dakota, Grand Forks, ND 58201, USA
| | - Sunil Mehta
- Mayo Clinic, Developmental and Behavioral Pediatrics, Psychiatry and Psychology, Rochester, MN 55905, USA
| | - Maja Z. Katusic
- Mayo Clinic, Pediatric and Adolescent Medicine, Rochester, MN 55905, USA
| | - Jacob R. Greenmyer
- Mayo Clinic, Pediatric and Adolescent Medicine, Rochester, MN 55905, USA
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10
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McWilliams S, Singh I, Leung W, Stockler S, Ipsiroglu OS. Iron deficiency and common neurodevelopmental disorders—A scoping review. PLoS One 2022; 17:e0273819. [PMID: 36173945 PMCID: PMC9522276 DOI: 10.1371/journal.pone.0273819] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 08/16/2022] [Indexed: 12/04/2022] Open
Abstract
Background A wealth of human and experimental studies document a causal and aggravating role of iron deficiency in neurodevelopmental disorders. While pre-, peri-, and early postnatal iron deficiency sets the stage for the risk of developing neurodevelopmental disorders, iron deficiency acquired at later ages aggravates pre-existing neurodevelopmental disorders. Yet, the association of iron deficiency and neurodevelopmental disorders in childhood and adolescence has not yet been explored comprehensively. In this scoping review, we investigate 1) the association of iron deficiency in children and adolescents with the most frequent neurodevelopmental disorders, ADHD, ASD, and FASD, and 2) whether iron supplementation improves outcomes in these disorders. Method Scoping review of studies published between 1994 and 2021 using “iron deficiency / iron deficiency anemia” AND “ADHD” OR “autism” OR “FASD” in four biomedical databases. The main inclusion criterion was that articles needed to have quantitative determination of iron status at any postnatal age with primary iron markers such as serum ferritin being reported in association with ADHD, ASD, or FASD. Results For ADHD, 22/30 studies and 4/4 systematic reviews showed an association of ADHD occurrence or severity with iron deficiency; 6/6 treatment studies including 2 randomized controlled trials demonstrated positive effects of iron supplementation. For ASD, 3/6 studies showed an association with iron deficiency, while 3/6 and 1/1 systematic literature review did not; 4 studies showed a variety of prevalence rates of iron deficiency in ASD populations; 1 randomized controlled trial found no positive effect of iron supplementation on behavioural symptoms of ASD. For FASD, 2/2 studies showed an association of iron deficiency with growth retardation in infants and children with prenatal alcohol exposure. Conclusion Evidence in favor of screening for iron deficiency and using iron supplementation for pediatric neurodevelopmental disorders comes primarily from ADHD studies and needs to be further investigated for ASD and FASD. Further analysis of study methodologies employed and populations investigated is needed to compare studies against each other and further substantiate the evidence created.
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Affiliation(s)
- Scout McWilliams
- H-Behaviours Research Lab (previously Sleep/Wake-Behaviour Research Lab), BC Children’s Hospital Research Institute, Vancouver, Canada
| | - Ishmeet Singh
- H-Behaviours Research Lab (previously Sleep/Wake-Behaviour Research Lab), BC Children’s Hospital Research Institute, Vancouver, Canada
| | - Wayne Leung
- H-Behaviours Research Lab (previously Sleep/Wake-Behaviour Research Lab), BC Children’s Hospital Research Institute, Vancouver, Canada
| | - Sylvia Stockler
- H-Behaviours Research Lab (previously Sleep/Wake-Behaviour Research Lab), BC Children’s Hospital Research Institute, Vancouver, Canada
- Department of Pediatrics, University of British Columbia, Vancouver, Canada
- Division of Biochemical Diseases, Department of Pediatrics, BC Children’s Hospital, University of British Columbia, Vancouver, Canada
- * E-mail:
| | - Osman S. Ipsiroglu
- H-Behaviours Research Lab (previously Sleep/Wake-Behaviour Research Lab), BC Children’s Hospital Research Institute, Vancouver, Canada
- Department of Pediatrics, University of British Columbia, Vancouver, Canada
- Divisions of Child & Adolescent Psychiatry, Developmental Pediatrics and Respirology, Department of Pediatrics, Sleep/Wake-Behaviour Clinic at Sleep Program, BC Children’s Hospital, University of British Columbia, Vancouver, Canada
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Helfrich KK, Saini N, Kwan STC, Rivera OC, Hodges R, Smith SM. Gestational Iron Supplementation Improves Fetal Outcomes in a Rat Model of Prenatal Alcohol Exposure. Nutrients 2022; 14:nu14081653. [PMID: 35458215 PMCID: PMC9025692 DOI: 10.3390/nu14081653] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/16/2022] [Accepted: 04/13/2022] [Indexed: 12/19/2022] Open
Abstract
Prenatal alcohol exposure causes neurodevelopmental disability and is associated with a functional iron deficiency in the fetus and neonate, even when the mother consumes an apparently iron-adequate diet. Here, we test whether gestational administration of the clinically relevant iron supplement Fer-In-Sol mitigates alcohol’s adverse impacts upon the fetus. Pregnant Long-Evans rats consumed an iron-adequate diet and received 5 g/kg alcohol by gavage for 7 days in late pregnancy. Concurrently, some mothers received 6 mg/kg oral iron. We measured maternal and fetal weights, hematology, tissue iron content, and oxidative damage on gestational day 20.5. Alcohol caused fetal anemia, decreased fetal body and brain weight, increased hepatic iron content, and modestly elevated hepatic malondialdehyde (p’s < 0.05). Supplemental iron normalized this brain weight reduction in alcohol-exposed males (p = 0.154) but not female littermates (p = 0.031). Iron also reversed the alcohol-induced fetal anemia and normalized both red blood cell numbers and hematocrit (p’s < 0.05). Iron had minimal adverse effects on the mother or fetus. These data show that gestational iron supplementation improves select fetal outcomes in prenatal alcohol exposure (PAE) including brain weight and hematology, suggesting that this may be a clinically feasible approach to improve prenatal iron status and fetal outcomes in alcohol-exposed pregnancies.
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Affiliation(s)
- Kaylee K. Helfrich
- UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA; (K.K.H.); (S.T.C.K.); (O.C.R.); (R.H.)
- Department of Nutrition, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA
| | - Nipun Saini
- UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA; (K.K.H.); (S.T.C.K.); (O.C.R.); (R.H.)
- Correspondence: (N.S.); (S.M.S.)
| | - Sze Ting Cecilia Kwan
- UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA; (K.K.H.); (S.T.C.K.); (O.C.R.); (R.H.)
| | - Olivia C. Rivera
- UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA; (K.K.H.); (S.T.C.K.); (O.C.R.); (R.H.)
| | - Rachel Hodges
- UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA; (K.K.H.); (S.T.C.K.); (O.C.R.); (R.H.)
| | - Susan M. Smith
- UNC Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA; (K.K.H.); (S.T.C.K.); (O.C.R.); (R.H.)
- Department of Nutrition, University of North Carolina at Chapel Hill, Kannapolis, NC 28081, USA
- Correspondence: (N.S.); (S.M.S.)
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12
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Affiliation(s)
- Vishal D Naik
- Department of Obstetrics & Gynecology, C.S. Mott Center for Human Growth and Development, School of Medicine, Wayne State University, Detroit, Michigan, USA
| | - Jehoon Lee
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Guoyao Wu
- Department of Animal Science, Texas A&M University, College Station, Texas, USA
| | - Shannon Washburn
- Department of Veterinary Physiology and Pharmacology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - Jayanth Ramadoss
- J. Ramadoss, Department of Obstetrics & Gynecology and Department of Physiology, 275 E Hancock St, C.S. Mott Center for Human Growth and Development, Rm 195, School of Medicine, Wayne State University, Detroit, MI 48201, USA. E-mail:
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13
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Niedzwiedz-Massey VM, Douglas JC, Rafferty T, Kane CJ, Drew PD. Ethanol effects on cerebellar myelination in a postnatal mouse model of fetal alcohol spectrum disorders. Alcohol 2021; 96:43-53. [PMID: 34358666 DOI: 10.1016/j.alcohol.2021.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/12/2021] [Accepted: 07/27/2021] [Indexed: 10/20/2022]
Abstract
Fetal alcohol spectrum disorders (FASD) are alarmingly common, result in significant personal and societal loss, and there are no effective treatments for these disorders. Cerebellar neuropathology is common in FASD and can cause impaired cognitive and motor function. The current study evaluates the effects of ethanol on oligodendrocyte-lineage cells, as well as molecules that modulate oligodendrocyte differentiation and function in the cerebellum in a postnatal mouse model of FASD. Neonatal mice were treated with ethanol from P4-P9 (postnatal day), the cerebellum was isolated at P10, and mRNAs encoding oligodendrocyte-associated molecules were quantitated by qRT-PCR. Our studies demonstrated that ethanol significantly reduced the expression of markers for multiple stages of oligodendrocyte maturation, including oligodendrocyte precursor cells, pre-myelinating oligodendrocytes, and mature myelinating oligodendrocytes. Additionally, we determined that ethanol significantly decreased the expression of molecules that play critical roles in oligodendrocyte differentiation. Interestingly, we also observed that ethanol significantly reduced the expression of myelin-associated inhibitors, which may act as a compensatory mechanism to ethanol toxicity. Furthermore, we demonstrate that ethanol alters the expression of a variety of molecules important in oligodendrocyte function and myelination. Collectively, our studies increase our understanding of specific mechanisms by which ethanol modulates myelination in the developing cerebellum, and potentially identify novel targets for FASD therapy.
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Niedzwiedz-Massey VM, Douglas JC, Rafferty T, Wight PA, Kane CJM, Drew PD. Ethanol modulation of hippocampal neuroinflammation, myelination, and neurodevelopment in a postnatal mouse model of fetal alcohol spectrum disorders. Neurotoxicol Teratol 2021; 87:107015. [PMID: 34256161 PMCID: PMC8440486 DOI: 10.1016/j.ntt.2021.107015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 06/24/2021] [Accepted: 07/08/2021] [Indexed: 01/15/2023]
Abstract
Fetal alcohol spectrum disorders (FASD) are alarmingly common and result in significant personal and societal loss. Neuropathology of the hippocampus is common in FASD leading to aberrant cognitive function. In the current study, we evaluated the effects of ethanol on the expression of a targeted set of molecules involved in neuroinflammation, myelination, neurotransmission, and neuron function in the developing hippocampus in a postnatal model of FASD. Mice were treated with ethanol from P4-P9, hippocampi were isolated 24 h after the final treatment at P10, and mRNA levels were quantitated by qRT-PCR. We evaluated the effects of ethanol on both pro-inflammatory and anti-inflammatory molecules in the hippocampus and identified novel mechanisms by which ethanol induces neuroinflammation. We further demonstrated that ethanol decreased expression of molecules associated with mature oligodendrocytes and greatly diminished expression of a lacZ reporter driven by the first half of the myelin proteolipid protein (PLP) gene (PLP1). In addition, ethanol caused a decrease in genes expressed in oligodendrocyte progenitor cells (OPCs). Together, these studies suggest ethanol may modulate pathogenesis in the developing hippocampus through effects on cells of the oligodendrocyte lineage, resulting in altered oligodendrogenesis and myelination. We also observed differential expression of molecules important in synaptic plasticity, neurogenesis, and neurotransmission. Collectively, the molecules evaluated in these studies may play a role in ethanol-induced pathology in the developing hippocampus and contribute to cognitive impairment associated with FASD. A better understanding of these molecules and their effects on the developing hippocampus may lead to novel treatment strategies for FASD.
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Affiliation(s)
- Victoria M Niedzwiedz-Massey
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - James C Douglas
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Tonya Rafferty
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Patricia A Wight
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Cynthia J M Kane
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Paul D Drew
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA; Department of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
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15
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Pinson MR, Holloway KN, Douglas JC, Kane CJM, Miranda RC, Drew PD. Divergent and overlapping hippocampal and cerebellar transcriptome responses following developmental ethanol exposure during the secondary neurogenic period. Alcohol Clin Exp Res 2021; 45:1408-1423. [PMID: 34060105 PMCID: PMC8312515 DOI: 10.1111/acer.14633] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 04/16/2021] [Accepted: 05/11/2021] [Indexed: 12/24/2022]
Abstract
Background The developing hippocampus and cerebellum, unique among brain regions, exhibit a secondary surge in neurogenesis during the third trimester of pregnancy. Ethanol (EtOH) exposure during this period is results in a loss of tissue volume and associated neurobehavioral deficits. However, mechanisms that link EtOH exposure to teratology in these regions are not well understood. We therefore analyzed transcriptomic adaptations to EtOH exposure to identify mechanistic linkages. Methods Hippocampi and cerebella were microdissected at postnatal day (P)10, from control C57BL/6J mouse pups, and pups treated with 4 g/kg of EtOH from P4 to P9. RNA was isolated and RNA‐seq analysis was performed. We compared gene expression in EtOH‐ and vehicle‐treated control neonates and performed biological pathway‐overrepresentation analysis. Results While EtOH exposure resulted in the general induction of genes associated with the S‐phase of mitosis in both cerebellum and hippocampus, overall there was little overlap in differentially regulated genes and associated biological pathways between these regions. In cerebellum, EtOH additionally induced gene expression associated with the G2/M‐phases of the cell cycle and sonic hedgehog signaling, while in hippocampus, EtOH‐induced the pathways for ribosome biogenesis and protein translation. Moreover, EtOH inhibited the transcriptomic identities associated with inhibitory interneuron subpopulations in the hippocampus, while in the cerebellum there was a more pronounced inhibition of transcripts across multiple oligodendrocyte maturation stages. Conclusions These data indicate that during the delayed neurogenic period, EtOH may stimulate the cell cycle, but it otherwise results in widely divergent molecular effects in the hippocampus and cerebellum. Moreover, these data provide evidence for region‐ and cell‐type‐specific vulnerability, which may contribute to the pathogenic effects of developmental EtOH exposure.
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Affiliation(s)
- Marisa R Pinson
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, Bryan, TX, USA
| | - Kalee N Holloway
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - James C Douglas
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Cynthia J M Kane
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Rajesh C Miranda
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, Bryan, TX, USA
| | - Paul D Drew
- Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, USA.,Department of Neurology, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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16
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Carter RC, Georgieff MK, Ennis KM, Dodge NC, Wainwright H, Meintjes EM, Duggan CP, Molteno CD, Jacobson JL, Jacobson SW. Prenatal alcohol-related alterations in maternal, placental, neonatal, and infant iron homeostasis. Am J Clin Nutr 2021; 114:1107-1122. [PMID: 34091657 PMCID: PMC8408869 DOI: 10.1093/ajcn/nqab165] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 04/23/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Prenatal alcohol exposure (PAE) is associated with postnatal iron deficiency (ID), which has been shown to exacerbate deficits in growth, cognition, and behavior seen in fetal alcohol spectrum disorders. However, the mechanisms underlying PAE-related ID remain unknown. OBJECTIVES We aimed to examine biochemical measures of iron homeostasis in the mother, placenta, neonate, and 6.5-month-old infant. METHODS In a prenatally recruited, prospective longitudinal birth cohort in South Africa, 206 gravidas (126 heavy drinkers and 80 controls) were interviewed regarding alcohol, cigarette, and drug use and diet at 3 prenatal visits. Hemoglobin, ferritin, and soluble transferrin receptor (sTfR) were assayed twice during pregnancy and urinary hepcidin:creatinine was assayed once. Infant ferritin and hemoglobin were measured at 2 weeks and 6.5 months and sTfR was measured at 6.5 months. Histopathological examinations were conducted on 125 placentas and iron transport assays (iron regulatory protein-2, transferrin receptor-1, divalent metal transporter-1, ferroportin-1, and iron concentrations) were conducted on 63. RESULTS In multivariable regression models, prenatal drinking frequency (days/week) was related to higher maternal hepcidin and to sequestration of iron into storage at the expense of erythropoiesis in mothers and neonates, as evidenced by a lower hemoglobin (g/dL)-to-log(ferritin) (ug/L) ratio [mothers: raw regression coefficient (β) = -0.21 (95% CI: -0.35 to -0.07); neonates: β = -0.15 (95% CI: -0.24 to -0.06)]. Drinking frequency was also related to decreased placental ferroportin-1:transferrin receptor-1 (β = -0.57 for logged values; 95% CI: -1.03 to -0.10), indicating iron-restricted placental iron transport. At 6.5 months, drinking frequency was associated with lower hemoglobin (β = -0.18; 95% CI: -0.33 to -0.02), and increased prevalences of ID (β = 0.09; 95% CI: 0.02-0.17) and ID anemia (IDA) (β = 0.13; 95% CI: 0.04-0.23). In causal inference analyses, the PAE-related increase in IDA was partially mediated by decreased neonatal hemoglobin:log(ferritin), and the decrease in neonatal hemoglobin:log(ferritin) was partially mediated by decreased maternal hemoglobin:log(ferritin). CONCLUSIONS In this study, greater PAE was associated with an unfavorable profile of maternal-fetal iron homeostasis, which may play mechanistic roles in PAE-related ID later in infancy.
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Affiliation(s)
| | - Michael K Georgieff
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Kathleen M Ennis
- Department of Pediatrics, University of Minnesota Medical School, Minneapolis, MN, USA
| | - Neil C Dodge
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA
| | - Helen Wainwright
- National Health Laboratory Service, Department of Pathology, Groote Schuur Hospital, Cape Town, South Africa
| | - Ernesta M Meintjes
- Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa
| | - Christopher P Duggan
- Division of Gastroenterology, Hepatology, and Nutrition, Boston Children's Hospital, Boston, MA, USA
| | - Christopher D Molteno
- Department of Psychiatry and Mental Health, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa
| | - Joseph L Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA,Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa
| | - Sandra W Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, USA,Department of Human Biology, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa,Department of Psychiatry and Mental Health, University of Cape Town Faculty of Health Sciences, Cape Town, South Africa
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17
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Adverse effects of iron deficiency anemia on pregnancy outcome and offspring development and intervention of three iron supplements. Sci Rep 2021; 11:1347. [PMID: 33446747 PMCID: PMC7809104 DOI: 10.1038/s41598-020-79971-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 12/15/2020] [Indexed: 11/09/2022] Open
Abstract
Iron deficiency anemia (IDA) is a common micronutrient deficiency among pregnant women with severe consequences including impaired immuno-inflammatory system, premature birth, fetal death etc. The present study aimed to investigate the effects of three iron supplements on IDA female rats and their offspring. The IDA female rat model was established with low iron diet and the rats were then mated. After pregnancy, rats were fed diets containing different iron supplements (iron polysaccharide complex, iron protein succinylate and ferrous sulfate) until their offspring were 42 days old. Pregnancy outcomes, haematological, iron metabolism, physical and neurological development indexes were determined. The results showed that all three iron supplements improved the levels of hematological parameters of both mother and offspring rats. After iron supplementation, serum iron, transferrin saturation and serum ferritin levels were increased compared with the IDA group. The level of ferritin light chain in the liver and spleen of both mother and offspring rats in iron supplemented groups was significantly higher than that of the IDA group. The average number of born alive per litter in the iron treatment groups was significantly higher than that in the IDA group. Iron supplements also improved the physical growth and neurobehavioral development of offspring rats. It was also found that iron supplementation improved the expression of ferritin light chain and the synaptic growth associated proteins in the brain and hippocampus. No significant difference was found in the efficacy of three iron supplements. These results suggest that pregnant and postpartum IDA affects pregnancy outcomes, offspring physical development and causes neural impairment. Sufficient iron supplementation can significantly improve IDA and its adverse effects on both mother and offspring.
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18
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Mahnke AH, Sideridis GD, Salem NA, Tseng AM, Carter RC, Dodge NC, Rathod AB, Molteno CD, Meintjes EM, Jacobson SW, Miranda RC, Jacobson JL. Infant circulating MicroRNAs as biomarkers of effect in fetal alcohol spectrum disorders. Sci Rep 2021; 11:1429. [PMID: 33446819 PMCID: PMC7809131 DOI: 10.1038/s41598-020-80734-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 12/10/2020] [Indexed: 12/19/2022] Open
Abstract
Prenatal alcohol exposure (PAE) can result in cognitive and behavioral disabilities and growth deficits. Because alcohol-related neurobehavioral deficits may occur in the absence of overt dysmorphic features or growth deficits, there is a need to identify biomarkers of PAE that can predict neurobehavioral impairment. In this study, we assessed infant plasma extracellular, circulating miRNAs (exmiRNAs) obtained from a heavily exposed Cape Town cohort to determine whether these can be used to predict PAE-related growth restriction and cognitive impairment. PAE, controlling for smoking as a covariate, altered 27% of expressed exmiRNAs with clinically-relevant effect sizes (Cohen's d ≥ 0.4). Moreover, at 2 weeks, PAE increased correlated expression of exmiRNAs across chromosomes, suggesting potential co-regulation. In confirmatory factor analysis, the variance in expression for PAE-altered exmiRNAs at 2 weeks and 6.5 months was best described by three-factor models. Pathway analysis found that factors at 2 weeks were associated with (F1) cell maturation, cell cycle inhibition, and somatic growth, (F2) cell survival, apoptosis, cardiac development, and metabolism, and (F3) cell proliferation, skeletal development, hematopoiesis, and inflammation, and at 6.5 months with (F1) neurodevelopment, neural crest/mesoderm-derivative development and growth, (F2) immune system and inflammation, and (F3) somatic growth and cardiovascular development. Factors F3 at 2 weeks and F2 at 6.5 months partially mediated PAE-induced growth deficits, and factor F3 at 2 weeks partially mediated effects of PAE on infant recognition memory at 6.5 months. These findings indicate that infant exmiRNAs can help identify infants who will exhibit PAE-related deficits in growth and cognition.
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Affiliation(s)
- Amanda H Mahnke
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, Bryan, TX, 77807, USA.
- Women's Health in Neuroscience Program, Texas A&M University Health Science Center, Bryan, TX, 77807, USA.
| | - Georgios D Sideridis
- Harvard Medical School, Boston Children's Hospital, Institutional Centers for Clinical and Translational Research, Boston, MA, 02115, USA
| | - Nihal A Salem
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Alexander M Tseng
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - R Colin Carter
- Departments of Pediatrics and Emergency Medicine, Institute of Human Nutrition, Columbia University Medical Center, New York, NY, 10032, USA
| | - Neil C Dodge
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, 48201, USA
| | - Aniruddha B Rathod
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Christopher D Molteno
- Departments of Human Biology and of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Ernesta M Meintjes
- Division of Biomedical Engineering, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Sandra W Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, 48201, USA
- Departments of Human Biology and of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Rajesh C Miranda
- Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
- Women's Health in Neuroscience Program, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Joseph L Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI, 48201, USA.
- Departments of Human Biology and of Psychiatry and Mental Health, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa.
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Everson JL, Batchu R, Eberhart JK. Multifactorial Genetic and Environmental Hedgehog Pathway Disruption Sensitizes Embryos to Alcohol-Induced Craniofacial Defects. Alcohol Clin Exp Res 2020; 44:1988-1996. [PMID: 32767777 PMCID: PMC7692922 DOI: 10.1111/acer.14427] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/28/2020] [Indexed: 12/25/2022]
Abstract
BACKGROUND Prenatal alcohol exposure (PAE) is perhaps the most common environmental cause of human birth defects. These exposures cause a range of structural and neurological defects, including facial dysmorphologies, collectively known as fetal alcohol spectrum disorders (FASD). While PAE causes FASD, phenotypic outcomes vary widely. It is thought that multifactorial genetic and environmental interactions modify the effects of PAE. However, little is known of the nature of these modifiers. Disruption of the Hedgehog (Hh) signaling pathway has been suggested as a modifier of ethanol teratogenicity. In addition to regulating the morphogenesis of craniofacial tissues commonly disrupted in FASD, a core member of the Hh pathway, Smoothened, is susceptible to modulation by structurally diverse chemicals. These include environmentally prevalent teratogens like piperonyl butoxide (PBO), a synergist found in thousands of pesticide formulations. METHODS Here, we characterize multifactorial genetic and environmental interactions using a zebrafish model of craniofacial development. RESULTS We show that loss of a single allele of shha sensitized embryos to both alcohol- and PBO-induced facial defects. Co-exposure of PBO and alcohol synergized to cause more frequent and severe defects. The effects of this co-exposure were even more profound in the genetically susceptible shha heterozygotes. CONCLUSIONS Together, these findings shed light on the multifactorial basis of alcohol-induced craniofacial defects. In addition to further implicating genetic disruption of the Hh pathway in alcohol teratogenicity, our findings suggest that co-exposure to environmental chemicals that perturb Hh signaling may be important variables in FASD and related craniofacial disorders.
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Affiliation(s)
- Joshua L. Everson
- From the Department of Molecular BiosciencesSchool of Natural SciencesUniversity of Texas at AustinAustinTexasUSA
- Waggoner Center for Alcohol and Addiction ResearchSchool of PharmacyUniversity of Texas at AustinAustinTexasUSA
| | - Rithik Batchu
- From the Department of Molecular BiosciencesSchool of Natural SciencesUniversity of Texas at AustinAustinTexasUSA
| | - Johann K. Eberhart
- From the Department of Molecular BiosciencesSchool of Natural SciencesUniversity of Texas at AustinAustinTexasUSA
- Waggoner Center for Alcohol and Addiction ResearchSchool of PharmacyUniversity of Texas at AustinAustinTexasUSA
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20
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An interaction between fetal sex and placental weight and efficiency predicts intrauterine growth in response to maternal protein insufficiency and gestational exposure window in a mouse model of FASD. Biol Sex Differ 2020; 11:40. [PMID: 32690098 PMCID: PMC7372829 DOI: 10.1186/s13293-020-00320-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/13/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Individuals exposed to gestational stressors such as alcohol exhibit a spectrum of growth patterns, suggesting individualized responses to the stressors. We hypothesized that intrauterine growth responses to gestational alcohol are modified not only by the stressor's severity but by fetal sex and the placenta's adaptive capacity. METHODS Pregnant C57BL/6J mice were assigned to one of three groups. Group 1 consumed a normal protein diet (18% protein by weight) and received 4.5 g alcohol/kg body weight (NP-Alc-8) or isocaloric maltodextrin (NP-MD-8) daily from embryonic day (E) 8.5-E17.5. Group 2 consumed the same diet but received alcohol (NP-Alc-13) or maltodextrin (NP-MD-13) daily from E13.5-E17.5. Group 3 consumed the same diet but containing a lower protein content (12% protein by weight) from E0.5 and also received alcohol (LP-Alc-8) or maltodextrin (LP-MD-8) daily from E8.5-E17.5. Maternal, placental, and fetal outcomes were assessed on E17.5 using 2-way ANOVA or mixed linear model. RESULTS We found that intrauterine growth differed in the alcohol-exposed fetuses depending on sex and insult severity. Both NP-Alc-8 (vs. NP-MD-8) males and females had lower body weight and asymmetrical growth, but only NP-Alc-8 females had lower placental weight (P < 0.05). NP-Alc-13 (vs. NP-MD-13) females, but not their male littermates, had lower body weight (P = 0.019). Alcohol exposure beginning from E8.5 (vs. E13.5) decreased the ratio of fetal liver-to-body weight and increased the ratio of fetal brain-to-liver weight in both sexes (P < 0.05). LP-Alc-8 (vs. NP-MD-8) group had smaller litter size (P = 0.048), but the survivors had normal placental and body weight at E17.5. Nevertheless, LP-Alc-8 fetuses still showed asymmetrical growth. Correlation analyses reveal a relationship between litter size and placental outcomes, which were related to fetal outcomes in a sex-dependent manner, suggesting that the placenta may mediate the consequence of LP-Alc-altered litter size on fetal development. CONCLUSIONS Our data indicate that the placenta is strongly involved in the fetal stress response and adapts in a sex-dependent fashion to support fetal development under the alcohol stressor. These variables may further influence the spectrum of intrauterine growth outcomes observed in those diagnosed with fetal alcohol spectrum disorder.
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21
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Kwan STC, Kezer CA, Helfrich KK, Saini N, Huebner SM, Flentke GR, Kling PJ, Smith SM. Maternal iron nutriture modulates placental development in a rat model of fetal alcohol spectrum disorder. Alcohol 2020; 84:57-66. [PMID: 31734307 DOI: 10.1016/j.alcohol.2019.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 11/01/2019] [Accepted: 11/04/2019] [Indexed: 12/20/2022]
Abstract
Prenatal alcohol exposure (PAE) causes developmental abnormalities known as fetal alcohol spectrum disorder (FASD). Maternal iron status modulates the severity of these defects in the offspring. Because the placenta is central in supporting fetal development, we investigated whether maternal iron status similarly modulates alcohol's effects in the placenta. We hypothesized that PAE causes placental insufficiency by decreasing placental weight and efficiency, and we hypothesized that these are worsened by maternal iron deficiency (ID) and alleviated by dietary iron fortification (IF). We also determined whether altered placental iron flux and inflammatory balance contribute to placental insufficiency. Pregnant Long-Evans rats consumed an iron-deficient (ID; 2-6 ppm), iron-sufficient (IS; 100 ppm), or iron-fortified (IF; 500 ppm) diet. Alcohol (5 g/kg body weight) or isocaloric maltodextrin (MD) was gavaged daily from gestational day (GD) 13.5-19.5. Placental outcomes were evaluated on GD20.5. PAE reduced fetal weight (p < 0.0001), placental weight (p = 0.0324), and placental efficiency (p = 0.0043). PAE downregulated placental transferrin receptor (p = 0.0032); it also altered placental Il1b and Tnf expression and the Il6:Il10 ratio (p = 0.0337, 0.0300, and 0.0034, respectively) to generate a response favoring inflammation. ID-PAE further reduced fetal growth and placental efficiency and induced a heightened pro-inflammatory placental profile. IF did not rescue the alcohol-reduced fetal weight, but it normalized placental efficiency and decreased placental inflammation. These placental cytokines correlated with fetal and placental growth, and explained 45% of the variability in fetal weight and 20% of the variability in placental efficiency. In summary, alcohol induces placental insufficiency and is associated with a pro-inflammatory cytokine profile exacerbated by maternal ID and mitigated by maternal IF. Because the placenta is closely linked to intrauterine growth, the placental insufficiency reported here may correlate with the lower birth weights in a subgroup of individuals who experienced PAE.
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Affiliation(s)
- Sze Ting Cecilia Kwan
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, United States
| | - Camille A Kezer
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53706, United States
| | - Kaylee K Helfrich
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, United States
| | - Nipun Saini
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, United States
| | - Shane M Huebner
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53706, United States
| | - George R Flentke
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, United States
| | - Pamela J Kling
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, 53715, United States
| | - Susan M Smith
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, NC, 28081, United States; Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53706, United States.
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22
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Diet quality, nutrient intakes and biochemical status of New Zealand women of childbearing age according to alcohol consumption patterns. Public Health Nutr 2020; 23:2952-2962. [PMID: 32014079 DOI: 10.1017/s1368980019003781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate associations between alcohol consumption patterns and diet quality, nutrient intakes and biochemical profile of women of childbearing age. DESIGN Nutrient intake data from 24 h diet recalls, alcohol consumption data and diet quality from the Dietary Habits Questionnaire, and biochemical analyses from the cross-sectional 2008/09 Adult Nutrition Survey in New Zealand. SETTING New Zealand households. PARTICIPANTS New Zealand women aged 18-45 years (n 1124). RESULTS All analyses were completed using Stata and survey weights were used to allow for the complex survey design to produce population estimates. Multinomial logistic regression models were used to examine the associations between drinking patterns and the variables of interest, with 'infrequent moderate/light' drinkers being the reference category. The findings indicate that alcohol-consuming women of childbearing age tend to replace food energy with alcohol energy (P = 0·022). 'More frequent heavy' and 'more frequent moderate/light' drinkers had higher intakes of total, mono- and polyunsaturated fats with the latter group also consuming higher levels of saturated fats (P < 0·05). Women who were 'infrequent moderate/light' drinkers had relatively better diet quality, nutrient intakes and adequate biochemical status in comparison to other drinkers and abstainers. 'Infrequent heavy' drinkers, who were predominantly younger in age, had lower serum vitamin B12 levels (P = 0·01) with a higher proportion of women in this category having below-recommended levels of serum folate (P < 0·05). CONCLUSIONS Alcohol consumption, especially heavy drinking patterns, may compromise nutritional status of women of childbearing age.
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De La Fuente-Ortega E, Plaza-Briceño W, Vargas-Robert S, Haeger P. Prenatal Ethanol Exposure Misregulates Genes Involved in Iron Homeostasis Promoting a Maladaptation of Iron Dependent Hippocampal Synaptic Transmission and Plasticity. Front Pharmacol 2019; 10:1312. [PMID: 31787896 PMCID: PMC6855190 DOI: 10.3389/fphar.2019.01312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 10/15/2019] [Indexed: 01/05/2023] Open
Abstract
Prenatal ethanol exposure (PAE) induces behavioral maladptations in offspring, including a deficit in memory formation which is part of the umbrella sign of fetal alcohol spectrum disorder. Clinical and preclinical studies have shown that iron depletion exacerbates cognitive problems in offspring exposed to ethanol in utero and that PAE promotes dysregulation in brain iron homeostasis. However, the mechanisms underlying brain iron dysregulation and neuronal activity defects in adolescent offspring of PAE are unclear and poorly understand. Here, we used a PAE rat model to analyze messenger RNA (mRNA) and protein expression of iron homeostasis genes such as transferrin receptor (TfR), divalent metal transporter (DMT1), ferroportin (FPN1), and ferritin (FT) in brain areas associated with memory formation such as the prefrontal cortex (PFC), ventral tegmental area, and hippocampus. Interestingly, we found that 21 day old PAE rats have higher mRNA expression of DMT1 in the PFC, and TfR in the hippocampus, compared to control animals. In contrast FPN has lower mRNA expression in the PFC, and FT and FPN1 have lower expression in the hippocampus. In agreement with these results, we found a 1.5–2 fold increase of TfR and DMT1 protein levels both in the hippocampus and the PFC. Additionally, using an electrophysiological approach, we found that in hippocampal slices from PAE rats, iron treatment decreased long-term potentiation (LTP), but not AMPAR basal transmission (AMPAR fEPSP). In contrast, in control slices Fe-NTA did not affect LTP but decreased significantly the AMPAR fEPSP. Meanwhile, iron chelation with deferiprone decreased AMPAR transmission in PAE and control slices and decreased LTP only in controls slices. These results suggest that PAE affects iron homeostasis of specific brain areas—PFC and hippocampus—which could be involved in maladaptive cognition observed in this animal model.
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Affiliation(s)
- Erwin De La Fuente-Ortega
- Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo, Chile
| | - Wladimir Plaza-Briceño
- Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo, Chile
| | - Sofía Vargas-Robert
- Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo, Chile
| | - Paola Haeger
- Departamento de Ciencias Biomédicas, Facultad de Medicina, Universidad Católica del Norte, Coquimbo, Chile
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24
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Saini N, Helfrich KK, Kwan STC, Huebner SM, Abazi J, Flentke GR, Blohowiak SE, Kling PJ, Smith SM. Alcohol's Dysregulation of Maternal-Fetal IL-6 and p-STAT3 Is a Function of Maternal Iron Status. Alcohol Clin Exp Res 2019; 43:2332-2343. [PMID: 31524964 DOI: 10.1111/acer.14200] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/06/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Prenatal alcohol exposure (PAE) causes long-term growth and neurodevelopmental deficits that are worsened by maternal iron deficiency (ID). In our preclinical rat model, PAE causes fetal anemia, brain ID, and elevated hepatic iron via increased maternal and fetal hepcidin synthesis. These changes are normalized by a prenatal iron-fortified (IF) diet. Here, we hypothesize that iron status and PAE dysregulate the major upstream pathways that govern hepcidin production-EPO/BMP6/SMAD and IL-6/JAK2/STAT3. METHODS Pregnant, Long Evans rat dams consumed ID (2 to 6 ppm iron), iron-sufficient (IS, 100 ppm iron), or IF (500 ppm iron) diets and received alcohol (5 g/kg) or isocaloric maltodextrin daily from gestational days (GD) 13.5 to 19.5. Protein and gene expression were quantified in the 6 experimental groups at GD 20.5. RESULTS PAE did not affect Epo or Bmp6 expression, but reduced p-SMAD1/5/8/SMAD1/5/8 protein ratios in both IS and ID maternal and fetal liver (all p's < 0.01). In contrast, PAE stimulated maternal hepatic expression of Il-6 (p = 0.03) and elevated p-STAT3/STAT3 protein ratios in both IS and ID maternal and fetal liver (all p's < 0.02). PAE modestly elevated maternal Il-1β, Tnf-α, and Ifn-γ. Fetal cytokine responses to PAE were muted compared with dams, and PAE did not affect hepatic Il-6 (p = 0.78) in IS and ID fetuses. Dietary iron fortification sharply attenuated Il-6 expression in response to PAE, with IF driving a 150-fold decrease (p < 0.001) in maternal liver and a 10-fold decrease (p < 0.01) in fetal liver. The IF diet also normalized p-STAT3/STAT3 ratios in both maternal and fetal liver. CONCLUSIONS These findings suggest that alcohol-driven stimulation of the IL-6/JAK2/STAT3 pathway mediates the elevated hepcidin observed in the PAE dam and fetus. Normalization of these signals by IF suggests that dysregulated hepcidin is driven by alcohol's disruption of the IL-6/JAK2/STAT3 pathway. Prenatal dietary IF represents a potential therapeutic approach for PAE that warrants further investigation.
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Affiliation(s)
- Nipun Saini
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
| | - Kaylee K Helfrich
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
| | - Sze Ting Cecilia Kwan
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
| | - Shane M Huebner
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Juna Abazi
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - George R Flentke
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
| | - Sharon E Blohowiak
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin
| | - Pamela J Kling
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin
| | - Susan M Smith
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
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25
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Maternal ethanol exposure reshapes CART system in the rat brain: Correlation with development of anxiety, depression and memory deficits. Neuroscience 2019; 406:126-139. [DOI: 10.1016/j.neuroscience.2019.02.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 02/06/2019] [Accepted: 02/07/2019] [Indexed: 02/07/2023]
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26
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Ipsiroglu OS, Wind K, Hung YHA, Berger M, Chan F, Yu W, Stockler S, Weinberg J. Prenatal alcohol exposure and sleep-wake behaviors: exploratory and naturalistic observations in the clinical setting and in an animal model. Sleep Med 2019; 54:101-112. [PMID: 30530254 PMCID: PMC7343292 DOI: 10.1016/j.sleep.2018.10.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 10/13/2018] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Clinical research and studies using animal models have revealed a complex and relatively under-explored interaction between prenatal alcohol exposure (PAE) and alterations in sleep-wake behaviors. OBJECTIVES To utilize a structured naturalistic observation-based methodology, consisting of descriptive elements, to provide insight into possible links between altered sleep and disruptive daytime presentations in children and adolescents with fetal alcohol spectrum disorder (FASD). To apply a similar structured behavioral observation protocol in a PAE animal model to compare outcomes from the experimental and clinical studies utilizing naturalistic observational methodology. METHODS Forty pediatric patients with FASD (1.8-17.5 yrs, median age 9.4 yrs) and chronic sleep problems were assessed. In the PAE animal model, male offspring from PAE, Pair-Fed (PF), and ad libitum-fed Control (C) groups (n = 8/group) were assessed in the juvenile/preadolescent (23-25 days of age) and adolescent/pubertal (35-36 days of age) periods. RESULTS In the clinical setting, we found that 95% of children with FASD showed disruptive or externalizing behaviors, 73% showed internalizing behaviors, 93% had circadian rhythm sleep disorders, all had chronic insomnia, and 85% had restless sleep, often with tossing/turning/kicking movements indicative of non-restorative sleep with hypermotor events. In the daytime, individuals showed excessive daytime sleepiness as well as hyperactive/hyperkinetic behaviors, an urge-to-move, and involuntary movements suggestive of hyperarousability. Alterations in sleep/wake behaviors in the PAE animal model paralleled the clinical data in many aspects, demonstrating greater sleep latencies, less total time asleep, more total time awake and longer awake bouts, more position changes, more time in transition, and longer transition bouts in PAE compared to PF and/or control animals. CONCLUSIONS Thus, our findings provide support for the power and validity of naturalistic observational paradigms in revealing dysregulated sleep-wake behaviors and their association and/or exacerbating relationship with day and nighttime behavioral problems, such as disruptive behaviors, externalizing and internalizing disorders, and daytime sleepiness.
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Affiliation(s)
- Osman S Ipsiroglu
- Sleep/Wake-Behavior Research Lab, BC Children's Hospital Research Institute, Vancouver, BC, Canada; Departments of Pediatrics/Psychiatry, Sleep Medicine Center, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada.
| | - Katarina Wind
- Sleep/Wake-Behavior Research Lab, BC Children's Hospital Research Institute, Vancouver, BC, Canada; Department of Cellular & Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Yi-Hsuan Amy Hung
- Sleep/Wake-Behavior Research Lab, BC Children's Hospital Research Institute, Vancouver, BC, Canada; Department of Cellular & Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Mai Berger
- Sleep/Wake-Behavior Research Lab, BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Forson Chan
- Sleep/Wake-Behavior Research Lab, BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Wayne Yu
- Department of Cellular & Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Sylvia Stockler
- Department of Pediatrics, Division of Biochemical Diseases, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Joanne Weinberg
- Department of Cellular & Physiological Sciences, Faculty of Medicine, University of British Columbia, Vancouver, BC, Canada
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27
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Petrelli B, Bendelac L, Hicks GG, Fainsod A. Insights into retinoic acid deficiency and the induction of craniofacial malformations and microcephaly in fetal alcohol spectrum disorder. Genesis 2019; 57:e23278. [DOI: 10.1002/dvg.23278] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Berardino Petrelli
- Regenerative Medicine Program and the Department of Biochemistry & Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health SciencesUniversity of Manitoba Winnipeg Manitoba Canada
| | - Liat Bendelac
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel‐CanadaFaculty of Medicine, Hebrew University Jerusalem Israel
| | - Geoffrey G. Hicks
- Regenerative Medicine Program and the Department of Biochemistry & Medical Genetics, Max Rady College of Medicine, Rady Faculty of Health SciencesUniversity of Manitoba Winnipeg Manitoba Canada
| | - Abraham Fainsod
- Department of Developmental Biology and Cancer Research, Institute for Medical Research Israel‐CanadaFaculty of Medicine, Hebrew University Jerusalem Israel
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28
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Georgieff MK, Tran PV, Carlson ES. Atypical fetal development: Fetal alcohol syndrome, nutritional deprivation, teratogens, and risk for neurodevelopmental disorders and psychopathology. Dev Psychopathol 2018; 30:1063-1086. [PMID: 30068419 PMCID: PMC6074054 DOI: 10.1017/s0954579418000500] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Accumulating evidence indicates that the fetal environment plays an important role in brain development and sets the brain on a trajectory across the life span. An abnormal fetal environment results when factors that should be present during a critical period of development are absent or when factors that should not be in the developing brain are present. While these factors may acutely disrupt brain function, the real cost to society resides in the long-term effects, which include important mental health issues. We review the effects of three factors, fetal alcohol exposure, teratogen exposure, and nutrient deficiencies, on the developing brain and the consequent risk for developmental psychopathology. Each is reviewed with respect to the evidence found in epidemiological and clinical studies in humans as well as preclinical molecular and cellular studies that explicate mechanisms of action.
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Affiliation(s)
| | - Phu V Tran
- University of Minnesota School of Medicine
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29
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Huebner SM, Helfrich KK, Saini N, Blohowiak SE, Cheng AA, Kling PJ, Smith SM. Dietary Iron Fortification Normalizes Fetal Hematology, Hepcidin, and Iron Distribution in a Rat Model of Prenatal Alcohol Exposure. Alcohol Clin Exp Res 2018; 42:1022-1033. [PMID: 29672865 DOI: 10.1111/acer.13754] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 04/04/2018] [Indexed: 01/10/2023]
Abstract
BACKGROUND Prenatal alcohol exposure (PAE) causes neurodevelopmental disability. Clinical and animal studies show gestational iron deficiency (ID) exacerbates PAE's behavioral and growth deficits. In rat, PAE manifests an inability to establish iron homeostasis, increasing hepcidin (maternal and fetal), and fetal liver iron while decreasing brain iron and promoting anemia. Here, we hypothesize dietary iron fortification during pregnancy may mitigate alcohol's disruption of fetal iron homeostasis. METHODS Pregnant Long-Evans rats, fed iron-sufficient (100 ppm iron) or iron-fortified (IF; 500 ppm iron) diets, received either 5 g/kg alcohol (PAE) or isocaloric maltodextrin daily on gestational days (GD) 13.5 through 19.5. Maternal and fetal outcomes were evaluated on GD20.5. RESULTS PAE reduced mean fetal weight (p < 0.001) regardless of maternal iron status, suggesting iron fortification did not improve fetal growth. Both PAE (p < 0.01) and IF (p = 0.035) increased fetal liver iron. In fetal brain, PAE (p = 0.015) affected total (p < 0.001) and nonheme iron (p < 0.001) such that iron fortification normalized (p = 0.99) the alcohol-mediated reductions in brain iron and nonheme iron. Iron fortification also improved fetal hematologic indices in PAE including hemoglobin, hematocrit, and mean cell volume (ps<0.001). Iron fortification also normalized hepcidin expression in alcohol-exposed maternal and fetal liver. Neither diet nor PAE affected transferrin (Tf) and ferritin (FTN) content in fetal liver, nor Tf or transferrin receptor in fetal brain. However, IF-PAE fetal brains trended to less FTN content (p = 0.074), suggesting greater availability of nonstorage iron. In PAE, hepcidin levels were linearly related to increased liver iron stores and decreased red blood cell count and brain iron. CONCLUSIONS Maternal oral iron fortification mitigated PAE's disruption of fetal iron homeostasis and improved brain iron content, hematologic indices, and hepcidin production in this rat PAE model. Clinical studies show maternal ID substantially enhances fetal vulnerability to PAE, and our work supports increased maternal dietary iron intake may improve fetal iron status in alcohol-exposed pregnancies.
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Affiliation(s)
- Shane M Huebner
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Kaylee K Helfrich
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
| | - Nipun Saini
- Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
| | - Sharon E Blohowiak
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin
| | - Adrienne A Cheng
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Pamela J Kling
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin
| | - Susan M Smith
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin.,Nutrition Research Institute, University of North Carolina at Chapel Hill, Kannapolis, North Carolina
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30
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Petrelli B, Weinberg J, Hicks GG. Effects of prenatal alcohol exposure (PAE): insights into FASD using mouse models of PAE. Biochem Cell Biol 2018; 96:131-147. [PMID: 29370535 PMCID: PMC5991836 DOI: 10.1139/bcb-2017-0280] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
The potential impact of prenatal alcohol exposure (PAE) varies considerably among exposed individuals, with some displaying serious alcohol-related effects and many others showing few or no overt signs of fetal alcohol spectrum disorder (FASD). In animal models, variables such as nutrition, genetic background, health, other drugs, and stress, as well as dosage, duration, and gestational timing of exposure to alcohol can all be controlled in a way that is not possible in a clinical situation. In this review we examine mouse models of PAE and focus on those with demonstrated craniofacial malformations, abnormal brain development, or behavioral phenotypes that may be considered FASD-like outcomes. Analysis of these data should provide a valuable tool for researchers wishing to choose the PAE model best suited to their research questions or to investigate established PAE models for FASD comorbidities. It should also allow recognition of patterns linking gestational timing, dosage, and duration of PAE, such as recognizing that binge alcohol exposure(s) during early gestation can lead to severe FASD outcomes. Identified patterns could be particularly insightful and lead to a better understanding of the molecular mechanisms underlying FASD.
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Affiliation(s)
- Berardino Petrelli
- Department of Biochemistry & Medical Genetics; Regenerative Medicine Program, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
| | - Joanne Weinberg
- Department of Cellular & Physiological Sciences, Faculty of Medicine, Life Sciences Institute, University of British Columbia, UBC Institute of Mental Health, Vancouver, British Columbia, Canada
| | - Geoffrey G. Hicks
- Department of Biochemistry & Medical Genetics; Regenerative Medicine Program, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
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31
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Helfrich KK, Saini N, Kling PJ, Smith SM. Maternal iron nutriture as a critical modulator of fetal alcohol spectrum disorder risk in alcohol-exposed pregnancies. Biochem Cell Biol 2018; 96:204-212. [PMID: 29017023 PMCID: PMC5914169 DOI: 10.1139/bcb-2017-0206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Alcohol consumption during pregnancy places the fetus at risk for permanent physical, cognitive, and behavioral impairments, collectively termed fetal alcohol spectrum disorder (FASD). However, prenatal alcohol exposure (PAE) outcomes vary widely, and growing evidence suggests that maternal nutrition is a modifying factor. Certain nutrients, such as iron, may modulate FASD outcomes. Untreated gestational iron deficiency (ID) causes persistent neurodevelopmental deficits in the offspring that affect many of the same domains damaged by PAE. Although chronic alcohol consumption enhances iron uptake and elevates liver iron stores in adult alcoholics, alcohol-abusing premenopausal women often have low iron reserves due to menstruation, childbirth, and poor diet. Recent investigations show that low iron reserves during pregnancy are strongly associated with a worsening of several hallmark features in FASD including reduced growth and impaired associative learning. This review discusses recent clinical and animal model findings that maternal ID worsens fetal outcomes in response to PAE. It also discusses underlying mechanisms by which PAE disrupts maternal and fetal iron homeostasis. We suggest that alcohol-exposed ID pregnancies contribute to the severe end of the FASD spectrum.
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Affiliation(s)
- Kaylee K Helfrich
- a UNC Nutrition Research Institute and Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Nipun Saini
- a UNC Nutrition Research Institute and Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Pamela J Kling
- b Department of Pediatrics, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Susan M Smith
- a UNC Nutrition Research Institute and Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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32
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Carter RC, Senekal M, Dodge NC, Bechard LJ, Meintjes EM, Molteno CD, Duggan CP, Jacobson JL, Jacobson SW. Maternal Alcohol Use and Nutrition During Pregnancy: Diet and Anthropometry. Alcohol Clin Exp Res 2017; 41:2114-2127. [DOI: 10.1111/acer.13504] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 09/13/2017] [Indexed: 02/04/2023]
Affiliation(s)
| | - Marjanne Senekal
- University of Cape Town Faculty of Health Sciences; Cape Town South Africa
| | - Neil C. Dodge
- Wayne State University School of Medicine; Detroit Michigan
| | | | | | | | | | - Joseph L. Jacobson
- University of Cape Town Faculty of Health Sciences; Cape Town South Africa
- Wayne State University School of Medicine; Detroit Michigan
| | - Sandra W. Jacobson
- University of Cape Town Faculty of Health Sciences; Cape Town South Africa
- Wayne State University School of Medicine; Detroit Michigan
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33
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Tran TD, Amin A, Jones KG, Sheffer EM, Ortega L, Dolman K. The Use of Trace Eyeblink Classical Conditioning to Assess Hippocampal Dysfunction in a Rat Model of Fetal Alcohol Spectrum Disorders. J Vis Exp 2017. [PMID: 28809846 PMCID: PMC5614106 DOI: 10.3791/55350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Neonatal rats were administered a relatively high concentration of ethyl alcohol (11.9% v/v) during postnatal days 4-9, a time when the fetal brain undergoes rapid organizational change and is similar to accelerated brain changes that occur during the third trimester in humans. This model of fetal alcohol spectrum disorders (FASDs) produces severe brain damage, mimicking the amount and pattern of binge-drinking that occurs in some pregnant alcoholic mothers. We describe the use of trace eyeblink classical conditioning (ECC), a higher-order variant of associative learning, to assess long-term hippocampal dysfunction that is typically seen in alcohol-exposed adult offspring. At 90 days of age, rodents were surgically prepared with recording and stimulating electrodes, which measured electromyographic (EMG) blink activity from the left eyelid muscle and delivered mild shock posterior to the left eye, respectively. After a 5 day recovery period, they underwent 6 sessions of trace ECC to determine associative learning differences between alcohol-exposed and control rats. Trace ECC is one of many possible ECC procedures that can be easily modified using the same equipment and software, so that different neural systems can be assessed. ECC procedures in general, can be used as diagnostic tools for detecting neural pathology in different brain systems and different conditions that insult the brain.
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Affiliation(s)
- Tuan D Tran
- Department of Psychology, East Carolina University; Multidisciplinary Studies Program in Neuroscience, East Carolina University;
| | - Aenia Amin
- Department of Psychology, East Carolina University; Multidisciplinary Studies Program in Neuroscience, East Carolina University
| | - Keith G Jones
- Multidisciplinary Studies Program in Neuroscience, East Carolina University
| | | | - Lidia Ortega
- Department of Psychology, East Carolina University
| | - Keith Dolman
- Multidisciplinary Studies Program in Neuroscience, East Carolina University
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Bioavailability of iron multi-amino acid chelate preparation in mice and human duodenal HuTu 80 cells. Br J Nutr 2017; 117:767-774. [DOI: 10.1017/s0007114517000186] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
AbstractStrategies for preventing Fe deficiency include Fe supplementation and Fe fortification of foods. The absorption, metabolism and chemical characteristics of Fe multi-amino acid chelate (IMAAC) are not known. Absorption of IMAAC was compared with FeSO4in Fe-depleted mice andin vitrochemical studies of the Fe supplement was performed in HuTu 80 cells. Hb repletion study was carried out in Fe-deficient CD1 mice that were fed for 10 d a diet supplemented with ferrous IMAAC or FeSO4. A control group of Fe-replete mice was fed a diet with adequate Fe concentrations throughout the study. Tissues were collected from the mice, and the expression of Fe-related genes was determined by quantitative PCR. Ferric reductase and Fe uptake were evaluated in HuTu 80 cells. Supplementation of the diet with FeSO4or IMAAC significantly increased Hb levels (P<0·001) in Fe-deficient mice from initial 93·9 (SD10·8) or 116·2 (SD9·1) to 191 (SD0·7) or 200 (SD0·5) g/l, respectively. Initial and final Hb for the Fe-deficient control group were 87·4 (SD6·7) and 111 (SD11·7) g/l, respectively. Furthermore, the liver non-haem Fe of both supplement groups increased significantly (P<0·001). IMAAC was more effective at restoring Fe in the spleen compared with FeSO4(P<0·005). Gene expression showed the IMAAC supplement absorption is regulated by the body’s Fe status as it significantly up-regulated hepcidin (P<0·001) and down-regulated duodenal cytochrome b mRNA (P<0·005), similar to the effects seen with FeSO4. A significant proportion of Fe in IMAAC is reduced by ascorbic acid. Fe absorption in mice and cells was similar for both IMAAC and FeSO4and both compounds induce and regulate Fe metabolism genes similarly in the maintenance of homeostasis in mice.
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Idrus NM, Breit KR, Thomas JD. Dietary choline levels modify the effects of prenatal alcohol exposure in rats. Neurotoxicol Teratol 2017; 59:43-52. [PMID: 27888055 PMCID: PMC5770193 DOI: 10.1016/j.ntt.2016.11.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 11/18/2016] [Accepted: 11/21/2016] [Indexed: 01/21/2023]
Abstract
Prenatal alcohol exposure can cause a range of physical and behavioral alterations; however, the outcome among children exposed to alcohol during pregnancy varies widely. Some of this variation may be due to nutritional factors. Indeed, higher rates of fetal alcohol spectrum disorders (FASD) are observed in countries where malnutrition is prevalent. Epidemiological studies have shown that many pregnant women throughout the world may not be consuming adequate levels of choline, an essential nutrient critical for brain development, and a methyl donor. In this study, we examined the influence of dietary choline deficiency on the severity of fetal alcohol effects. Pregnant Sprague-Dawley rats were randomly assigned to receive diets containing 40, 70, or 100% recommended choline levels. A group from each diet condition was exposed to ethanol (6.0g/kg/day) from gestational day 5 to 20 via intubation. Pair-fed and ad lib lab chow control groups were also included. Physical and behavioral development was measured in the offspring. Prenatal alcohol exposure delayed motor development, and 40% choline altered performance on the cliff avoidance task, independent of one another. However, the combination of low choline and prenatal alcohol produced the most severe impairments in development. Subjects exposed to ethanol and fed the 40% choline diet exhibited delayed eye openings, significantly fewer successes in hindlimb coordination, and were significantly overactive compared to all other groups. These data suggest that suboptimal intake of a single nutrient can exacerbate some of ethanol's teratogenic effects, a finding with important implications for the prevention of FASD.
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Affiliation(s)
- Nirelia M Idrus
- Department of Psychology, Center for Behavioral Teratology, San Diego State University, San Diego, CA 92120, USA
| | - Kristen R Breit
- Department of Psychology, Center for Behavioral Teratology, San Diego State University, San Diego, CA 92120, USA
| | - Jennifer D Thomas
- Department of Psychology, Center for Behavioral Teratology, San Diego State University, San Diego, CA 92120, USA.
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Maternal micronutrient consumption periconceptionally and during pregnancy: a prospective cohort study. Public Health Nutr 2016; 20:294-304. [PMID: 27485466 DOI: 10.1017/s1368980016002019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To examine overall micronutrient intake periconceptionally and throughout pregnancy in a population-based cohort of Australian women. DESIGN In a prospective cohort study, micronutrient dosages were extracted from self-reported maternal supplement use, recorded pre-conception, and for each trimester of pregnancy. A food frequency scale (DQESv2) captured usual maternal diet for gestational weeks 14-26. The influence of sociodemographic and lifestyle factors associated with supplement use was examined using logistic regression, and changes in micronutrient intakes prior to and throughout pregnancy were assessed using repeated-measures ANOVA analyses. SETTING Metropolitan hospital sites in Melbourne, Australia. SUBJECTS Women with a viable singleton pregnancy were recruited at less than 19 weeks' gestation (n 2146). RESULTS Compared with non-users, women using supplements during pregnancy were more likely to have planned their pregnancy, be >25 years old, primiparous, Caucasian, non-smokers, have a tertiary education and be consuming a folate-rich diet. Intakes of folate, Fe and Zn were significantly lower in the periconceptional period, compared with other periods (P<0·001). Intakes below Recommended Daily Intake levels were common both periconceptionally and throughout pregnancy, with 19-46 % of women not meeting the Recommended Daily Intake for folate, 68-82 % for Fe and 17-36 % for Zn. Conversely, 15-19 % of women consumed beyond the recommended Upper Limit for folate and 11-24 % for Fe. CONCLUSIONS The study highlights the need for improved public health education on nutritional needs during pregnancy, especially among women with lower educational achievements and income.
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Huebner SM, Blohowiak SE, Kling PJ, Smith SM. Prenatal Alcohol Exposure Alters Fetal Iron Distribution and Elevates Hepatic Hepcidin in a Rat Model of Fetal Alcohol Spectrum Disorders. J Nutr 2016; 146:1180-8. [PMID: 27146918 PMCID: PMC4877631 DOI: 10.3945/jn.115.227983] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 03/21/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Prenatal alcohol exposure (PAE) causes neurodevelopmental disabilities, and gestational iron deficiency (ID) selectively worsens learning and neuroanatomical and growth impairments in PAE. It is unknown why ID worsens outcomes in alcohol-exposed offspring. OBJECTIVE We hypothesized that PAE alters maternal-fetal iron distribution or its regulation. METHODS Nulliparous, 10-wk-old, Long-Evans rats were mated and then fed iron-sufficient (100 mg Fe/kg) or iron-deficient (≤4 mg Fe/kg) diets. On gestational days 13.5-19.5, dams received either 5.0 g ethanol/kg body weight (PAE) or isocaloric maltodextrin by oral gavage. On gestational day 20.5, maternal and fetal clinical blood counts, tissue mineral and iron transport protein concentrations, and hepatic hepcidin mRNA expression were determined. RESULTS In fetal brain and liver (P < 0.001) and in maternal liver (P < 0.005), ID decreased iron (total and nonheme) and ferritin content by nearly 200%. PAE reduced fetal bodyweight (P < 0.001) and interacted with ID (P < 0.001) to reduce it by an additional 20%. Independent of maternal iron status, PAE increased fetal liver iron (30-60%, P < 0.001) and decreased brain iron content (total and nonheme, 15-20%, P ≤ 0.050). ID-PAE brains had lower ferritin, transferrin, and transferrin receptor content (P ≤ 0.002) than ID-maltodextrin brains. PAE reduced fetal hematocrit, hemoglobin, and red blood cell numbers (P < 0.003) independently of iron status. Unexpectedly, and also independent of iron status, PAE increased maternal and fetal hepatic hepcidin mRNA expression >300% (P < 0.001). CONCLUSIONS PAE altered fetal iron distribution independent of maternal iron status in rats. The elevated iron content of fetal liver suggests that PAE may have limited iron availability for fetal erythropoiesis and brain development. Altered fetal iron distribution may partly explain why maternal ID substantially worsens growth and behavioral outcomes in PAE.
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Affiliation(s)
- Shane M Huebner
- From the Departments of Nutritional Sciences, College of Agriculture and Life Sciences, and
| | - Sharon E Blohowiak
- Pediatrics, School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WI
| | - Pamela J Kling
- Pediatrics, School of Medicine and Public Health, University of Wisconsin–Madison, Madison, WI
| | - Susan M Smith
- From the Departments of Nutritional Sciences, College of Agriculture and Life Sciences, and
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Schneider RD, Thomas JD. Adolescent Choline Supplementation Attenuates Working Memory Deficits in Rats Exposed to Alcohol During the Third Trimester Equivalent. Alcohol Clin Exp Res 2016; 40:897-905. [PMID: 27038598 PMCID: PMC5763508 DOI: 10.1111/acer.13021] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 01/20/2016] [Indexed: 12/17/2022]
Abstract
BACKGROUND Children exposed to alcohol prenatally may suffer from behavioral and cognitive alterations that adversely affect their quality of life. Animal studies have shown that perinatal supplementation with the nutrient choline can attenuate ethanol's adverse effects on development; however, it is not clear how late in development choline can be administered and still effectively reduce the consequences of prenatal alcohol exposure. Using a rodent model, this study examined whether choline supplementation is effective in mitigating alcohol's teratogenic effects when administered during adolescence/young adulthood. METHODS Sprague-Dawley rats were exposed to alcohol (5.25 g/kg/d) during the third trimester equivalent brain growth spurt, which occurs from postnatal day (PD) 4 to 9, via oral intubation. Sham-intubated and nontreated controls were included. Subjects were treated with 100 mg/kg/d choline chloride or vehicle from PD 40 to 60, a period equivalent to young adulthood in the rat. After the choline treatment had ceased, subjects were tested on a series of behavioral tasks: open field activity (PD 61 to 64), Morris water maze spatial learning (PD 65 to 73), and spatial working memory (PD 87 to 91). RESULTS Ethanol-exposed subjects were overactive in the activity chambers and impaired on both the spatial and the working memory versions of the Morris water maze. Choline treatment failed to attenuate alcohol-related overactivity in the open field and deficits in Morris water maze performance. In contrast, choline supplementation significantly mitigated alcohol-related deficits in working memory, which may suggest that choline administration at this later developmental time affects functioning of the prefrontal cortex. CONCLUSIONS The results indicate that adolescent choline supplementation can attenuate some, but not all, of the behavioral deficits associated with early developmental alcohol exposure. The results of this study indicate that dietary intervention may reduce some fetal alcohol effects, even when administered later in life, findings with important implications for adolescents and young adults with fetal alcohol spectrum disorders.
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Affiliation(s)
- Ronald D Schneider
- Department of Psychology (RDS, JDT), Center for Behavioral Teratology, San Diego State University, San Diego, California
| | - Jennifer D Thomas
- Department of Psychology (RDS, JDT), Center for Behavioral Teratology, San Diego State University, San Diego, California
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May PA, Hamrick KJ, Corbin KD, Hasken JM, Marais AS, Blankenship J, Hoyme HE, Gossage JP. Maternal nutritional status as a contributing factor for the risk of fetal alcohol spectrum disorders. Reprod Toxicol 2016; 59:101-8. [PMID: 26656914 PMCID: PMC4783250 DOI: 10.1016/j.reprotox.2015.11.006] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 11/17/2015] [Indexed: 02/08/2023]
Abstract
OBJECTIVE Compare nutritional status of 57 South African mothers of children with fetal alcohol spectrum disorders (FASD) with 148 mothers of controls. METHODS Dietary data were analyzed for macronutrients, micronutrients, and fats via estimated average requirements (EAR) and adequate intakes (AI) for pregnant women. RESULTS Virtually all mothers were likely deficient on most micronutrients by either EAR (<50%) or AI values. Mothers of FASD children consumed more of 13 of 25 micronutrients. For percentage below EAR, only vitamin D was significantly higher for FASD mothers. Despite no difference in total food intake, control mothers had a higher mean body mass index (BMI) than FASD mothers. Maternal BMI is more significant for positive child outcomes than any individual nutrient. CONCLUSIONS Most mothers have inadequate dietary intake. Minor advantages in nutrient intake are overpowered by teratogenic effects of alcohol. Further study is needed of the interaction of alcohol, maternal nutrition, and metabolism.
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Affiliation(s)
- Philip A May
- University of North Carolina at Chapel Hill, Nutrition Research Institute, Gillings School of Global Public Health, USA; The University of New Mexico Center on Alcoholism, Substance Abuse, and Addictions (CASAA), Albuquerque, USA.
| | | | - Karen D Corbin
- Florida Hospital, Translational Research Institute for Metabolism and Diabetes, USA
| | - Julie M Hasken
- University of North Carolina at Chapel Hill, Nutrition Research Institute, Gillings School of Global Public Health, USA
| | - Anna-Susan Marais
- Stellenbosch University, Faculty of Medicine and Health Sciences, Tygerberg, South Africa; University of Cape Town, Foundation for Alcohol Related Research (FARR), Cape Town, South Africa
| | - Jason Blankenship
- The University of New Mexico Center on Alcoholism, Substance Abuse, and Addictions (CASAA), Albuquerque, USA
| | - H Eugene Hoyme
- Sanford School of Medicine, The University of South Dakota, Sioux Falls, USA
| | - J Phillip Gossage
- The University of New Mexico Center on Alcoholism, Substance Abuse, and Addictions (CASAA), Albuquerque, USA
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Kable JA, Coles CD, Keen CL, Uriu-Adams JY, Jones KL, Yevtushok L, Kulikovsky Y, Wertelecki W, Pedersen TL, Chambers CD. The impact of micronutrient supplementation in alcohol-exposed pregnancies on information processing skills in Ukrainian infants. Alcohol 2015; 49:647-56. [PMID: 26493109 PMCID: PMC4636447 DOI: 10.1016/j.alcohol.2015.08.005] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 08/12/2015] [Accepted: 08/13/2015] [Indexed: 12/24/2022]
Abstract
The potential of micronutrients to ameliorate the impact of prenatal alcohol exposure (PAE) was explored in a clinical trial conducted in Ukraine. Cardiac orienting responses (ORs) during a habituation/dishabituation learning paradigm were obtained from 6 to 12 month-olds to assess neurophysiological encoding and memory. Women who differed in prenatal alcohol use were recruited during pregnancy and assigned to a group (No study-provided supplements, multivitamin/mineral supplement, or multivitamin/mineral supplement plus choline supplement). Heart rate was collected for 30 s prior to stimulus onset and 12 s post-stimulus onset. Difference values (∆HR) for the first 3 trials of each condition were aggregated for analysis. Gestational blood samples were collected to assess maternal nutritional status and changes as a function of the intervention. Choline supplementation resulted in a greater ∆HR on the visual habituation trials for all infants and for the infants with no PAE on the dishabituation trials. The latency of the response was reduced in both conditions for all infants whose mothers received choline supplementation. Change in gestational choline level was positively related to ∆HR during habituation trials and levels of one choline metabolite, dimethylglycine (DMG), predicted ∆HR during habituation trials and latency of responses. A trend was found between DMG and ∆HR on the dishabituation trials and latency of the response. Supplementation did not affect ORs to auditory stimuli. Choline supplementation when administered together with routinely recommended multivitamin/mineral prenatal supplements during pregnancy may provide a beneficial impact to basic learning mechanisms involved in encoding and memory of environmental events in alcohol-exposed pregnancies as well as non- or low alcohol-exposed pregnancies. Changes in maternal nutrient status suggested that one mechanism by which choline supplementation may positively impact brain development is through prevention of fetal alcohol-related depletion of DMG, a metabolic nutrient that can protect against overproduction of glycine, during critical periods of neurogenesis.
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Affiliation(s)
- J A Kable
- Department of Psychiatry and Behavioral Science, Emory University School of Medicine, USA; Department of Pediatrics, Emory University School of Medicine, USA.
| | - C D Coles
- Department of Psychiatry and Behavioral Science, Emory University School of Medicine, USA; Department of Pediatrics, Emory University School of Medicine, USA
| | - C L Keen
- Department of Nutrition, University of California, Davis, USA
| | - J Y Uriu-Adams
- Department of Nutrition, University of California, Davis, USA
| | - K L Jones
- Department of Pediatrics, University of California, San Diego, USA
| | - L Yevtushok
- OMNI-Net for Children International Charitable Fund, Rivne Regional Medical Diagnostic Center, Rivne Province, Ukraine
| | - Y Kulikovsky
- OMNI-Net for Children International Charitable Fund, Rivne Regional Medical Diagnostic Center, Rivne Province, Ukraine
| | - W Wertelecki
- Department of Pediatrics, University of California, San Diego, USA; Department of Medical Genetics, University of South Alabama, USA
| | - T L Pedersen
- United States Department of Agriculture, Agricultural Research Service (ARS), Western Human Nutrition Research Center, Davis, CA, USA
| | - C D Chambers
- Department of Pediatrics, University of California, San Diego, USA; Department of Family Medicine and Public Health, University of California, San Diego, USA
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Huebner SM, Tran TD, Rufer ES, Crump PM, Smith SM. Maternal iron deficiency worsens the associative learning deficits and hippocampal and cerebellar losses in a rat model of fetal alcohol spectrum disorders. Alcohol Clin Exp Res 2015; 39:2097-107. [PMID: 26399568 DOI: 10.1111/acer.12876] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 08/09/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND Gestational alcohol exposure causes lifelong physical and neurocognitive deficits collectively referred to as fetal alcohol spectrum disorders (FASDs). Micronutrient deficiencies are common in pregnancies of alcohol-abusing women. Here we show the most common micronutrient deficiency of pregnancy-iron deficiency without anemia-significantly worsens neurocognitive outcomes following perinatal alcohol exposure. METHODS Pregnant rats were fed iron-deficient (ID) or iron-sufficient diets from gestational day 13 to postnatal day (P) 7. Pups received alcohol (0, 3.5, 5.0 g/kg) from P 4 to P 9, targeting the brain growth spurt. At P 32, learning was assessed using delay or trace eyeblink classical conditioning (ECC). Cerebellar interpositus nucleus (IPN) and hippocampal CA1 cellularity was quantified using unbiased stereology. RESULTS Global analysis of variance revealed that ID and alcohol separately and significantly reduced ECC learning with respect to amplitude (ps ≤ 0.001) and conditioned response [CR] percentage (ps ≤ 0.001). Iron and alcohol interacted to reduce CR percentage in the trace ECC task (p = 0.013). Both ID and alcohol significantly reduced IPN (ps < 0.001) and CA1 cellularity (ps < 0.005). CR amplitude correlated with IPN cellularity (delay: r = 0.871, trace: r = 0.703, ps < 0.001) and CA1 cellularity (delay: r = 0.792, trace: r = 0.846, ps < 0.001) across both tasks. The learning impairments persisted even though the offsprings' iron status had normalized. CONCLUSIONS Supporting our previous work, gestational ID exacerbates the associative learning deficits in this rat model of FASD. This is strongly associated with cellular reductions within the ECC neurocircuitry. Significant learning impairments in FASD could be the consequence, in part, of pregnancies in which the mother was also iron inadequate.
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Affiliation(s)
- Shane M Huebner
- Departments of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Tuan D Tran
- Department of Psychology, Multidisciplinary Studies Program in Neuroscience, East Carolina University, Greenville, North Carolina
| | - Echoleah S Rufer
- Departments of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Peter M Crump
- Computing and Biometry, University of Wisconsin-Madison, Madison, Wisconsin
| | - Susan M Smith
- Departments of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
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Burke MW, Ptito M, Ervin FR, Palmour RM. Hippocampal neuron populations are reduced in vervet monkeys with fetal alcohol exposure. Dev Psychobiol 2015; 57:470-85. [PMID: 25913787 PMCID: PMC4437182 DOI: 10.1002/dev.21311] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 03/11/2015] [Indexed: 12/16/2022]
Abstract
Prenatal exposure to beverage alcohol is a major cause of mild mental retardation and developmental delay. In nonendangered alcohol-preferring vervet monkeys, we modeled the most common nondysmorphic form of fetal alcohol syndrome disorder with voluntary drinking during the third trimester of pregnancy. Here, we report significant numerical reductions in the principal hippocampal neurons of fetal alcohol-exposed (FAE) offspring, as compared to age-matched, similarly housed conspecifics with isocaloric sucrose exposure. These deficits, particularly marked in CA1 and CA3, are present neonatally and persist through infancy (5 months) and juvenile (2 years) stages. Although the volumes of hippocampal subdivisions in FAE animals are not atypical at birth, by age 2, they are only 65-70% of those estimated in age-matched controls. These data suggest that moderate, naturalistic alcohol consumption during late pregnancy results in a stable loss of hippocampal neurons and a progressive reduction of hippocampal volume.
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Affiliation(s)
- Mark W Burke
- Department of Physiology and Biophysics, Howard University, Washington DC; Behavioural Science Foundation, St Kitts
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Murawski NJ. Advances in Diagnosis and Treatment of Fetal Alcohol Spectrum Disorders: From Animal Models to Human Studies. Alcohol Res 2015; 37:97-108. [PMID: 26259091 PMCID: PMC4476607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Prenatal alcohol exposure can cause a number of physical, behavioral, cognitive, and neural impairments, collectively known as fetal alcohol spectrum disorders (FASD). This article examines basic research that has been or could be translated into practical applications for the diagnosis or treatment of FASD. Diagnosing FASD continues to be a challenge, but advances are being made at both basic science and clinical levels. These include identification of biomarkers, recognition of subtle facial characteristics of exposure, and examination of the relation between face, brain, and behavior. Basic research also is pointing toward potential new interventions for FASD involving pharmacotherapies, nutritional therapies, and exercise interventions. Although researchers have assessed the majority of these treatments in animal models of FASD, a limited number of recent clinical studies exist. An assessment of this literature suggests that targeted interventions can improve some impairments resulting from developmental alcohol exposure. However, combining interventions may prove more efficacious. Ultimately, advances in basic and clinical sciences may translate to clinical care, improving both diagnosis and treatment.
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Latunde-Dada GO, Pereira DIA, Tempest B, Ilyas H, Flynn AC, Aslam MF, Simpson RJ, Powell JJ. A nanoparticulate ferritin-core mimetic is well taken up by HuTu 80 duodenal cells and its absorption in mice is regulated by body iron. J Nutr 2014; 144:1896-902. [PMID: 25342699 PMCID: PMC4230207 DOI: 10.3945/jn.114.201715] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Iron (Fe) deficiency anemia remains the largest nutritional deficiency disorder worldwide. How the gut acquires iron from nano Fe(III), especially at the apical surface, is incompletely understood. OBJECTIVE We developed a novel Fe supplement consisting of nanoparticulate tartrate-modified Fe(III) poly oxo-hydroxide [here termed nano Fe(III)], which mimics the Fe oxide core of ferritin and effectively treats iron deficiency anemia in rats. METHODS We determined transfer to the systemic circulation of nano Fe(III) in iron-deficient and iron-sufficient outbread Swiss mouse strain (CD1) mice with use of (59)Fe-labeled material. Iron deficiency was induced before starting the Fe-supplementation period through reduction of Fe concentrations in the rodent diet. A control group of iron-sufficient mice were fed a diet with adequate Fe concentrations throughout the study. Furthermore, we conducted a hemoglobin repletion study in which iron-deficient CD1 mice were fed for 7 d a diet supplemented with ferrous sulfate (FeSO4) or nano Fe(III). Finally, we further probed the mechanism of cellular acquisition of nano Fe(III) by assessing ferritin formation, as a measure of Fe uptake and utilization, in HuTu 80 duodenal cancer cells with targeted inhibition of divalent metal transporter 1 (DMT1) and duodenal cytochrome b (DCYTB) before exposure to the supplemented iron sources. Differences in gene expression were assessed by quantitative polymerase chain reaction. RESULTS Absorption (means ± SEMs) of nano Fe(III) was significantly increased in iron-deficient mice (58 ± 19%) compared to iron-sufficient mice (18 ± 17%) (P = 0.0001). Supplementation of the diet with nano Fe(III) or FeSO4 significantly increased hemoglobin concentrations in iron-deficient mice (170 ± 20 g/L, P = 0.01 and 180 ± 20 g/L, P = 0.002, respectively). Hepatic hepcidin mRNA expression reflected the nonheme-iron concentrations of the liver and was also comparable for both nano Fe(III)- and FeSO4-supplemented groups, as were iron concentrations in the spleen and duodenum. Silencing of the solute carrier family 11 (proton-coupled divalent metal ion transporter), member 2 (Slc11a2) gene (DMT1) significantly inhibited ferritin formation from FeSO4 (P = 0.005) but had no effect on uptake and utilization of nano Fe(III). Inhibiting DCYTB with an antibody also had no effect on uptake and utilization of nano Fe(III) but significantly inhibited ferritin formation from ferric nitrilotriacetate chelate (Fe-NTA) (P = 0.04). Similarly, cellular ferritin formation from nano Fe(III) was unaffected by the Fe(II) chelator ferrozine, which significantly inhibited uptake and utilization from FeSO4 (P = 0.009) and Fe-NTA (P = 0.005). CONCLUSIONS Our data strongly support direct nano Fe(III) uptake by enterocytes as an efficient mechanism of dietary iron acquisition, which may complement the known Fe(II)/DMT1 uptake pathway.
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Affiliation(s)
- Gladys O Latunde-Dada
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom; and
| | - Dora IA Pereira
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, United Kingdom
| | - Bethan Tempest
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom; and
| | - Hibah Ilyas
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom; and
| | - Angela C Flynn
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom; and
| | - Mohamad F Aslam
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, United Kingdom
| | - Robert J Simpson
- Diabetes and Nutritional Sciences Division, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom; and
| | - Jonathan J Powell
- Medical Research Council Human Nutrition Research, Elsie Widdowson Laboratory, Cambridge, United Kingdom
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Comeau WL, Winstanley CA, Weinberg J. Prenatal alcohol exposure and adolescent stress - unmasking persistent attentional deficits in rats. Eur J Neurosci 2014; 40:3078-95. [PMID: 25059261 PMCID: PMC4189965 DOI: 10.1111/ejn.12671] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 06/13/2014] [Indexed: 02/07/2023]
Abstract
Prenatal alcohol exposure (PAE) can produce a myriad of deficits. Unfortunately, affected individuals may also be exposed to the stress of an adverse home environment, contributing to deficits of attentional processes that are the hallmark of optimal executive function. Male offspring of ad-libitum-fed Control (Con), Pairfed (PF), and PAE dams were randomly assigned to either a 5-day period of variable chronic mild stress (CMS) or no CMS in adolescence. In adulthood, rats were trained in a non-match to sample task (T-maze), followed by extensive assessment in the five-choice serial reaction time task. Once rats acquired the five-choice serial reaction time task (stable accuracy), they were tested in three challenge conditions: (i) increased sustained attention, (ii) selective attention and, (iii) varying doses of d-amphetamine, an indirect dopamine and norepinephrine agonist. At birth and throughout the study, PAE offspring showed reduced body weight. Moreover, although PAE animals were similar to Con animals in task acquisition, they were progressively less proficient with transitions to shorter stimulus durations (decreased accuracy and increased omissions). Five days of adolescent CMS increased basal corticosterone levels in adolescence and disrupted cognitive performance in adulthood. Further, CMS augmented PAE-related disturbances in acquisition and, to a lesser extent, also disrupted attentional processes in Con and PF animals. Following task acquisition, challenges unmasked persistent attentional difficulties resulting from both PAE and adolescent CMS. In conclusion, PAE, adolescent CMS, and their interaction produced unique behavioural profiles that suggest vulnerability in select neurobiological processes at different stages of development.
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Affiliation(s)
- Wendy L Comeau
- Department of Cellular and Physiological Sciences, University of British Columbia, 2350 Health Sciences Mall, Vancouver, BC, V6T 1Z3, Canada
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Abstract
Adolescents with involvement in the correctional system have significant health risks and needs. Professional guidelines and policies related to health services in correctional settings can help health care providers who work in youth detention facilities and those who see youth for follow-up care after incarceration. Several challenges exist to providing care in detention facilities, but overcoming these barriers to optimally serve youth is critical. When youth are released to their homes, community providers must understand the extent of care offered in detention facilities, the unique considerations for youth on probation, and the aspects of follow-up care that should be addressed.
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Affiliation(s)
- Raymond C W Perry
- Department of Health Services, Los Angeles County Juvenile Court Health Services, 1925 Daly Street, 1st Floor, Los Angeles, CA 90031, USA.
| | - Robert E Morris
- General Pediatrics, Department of Pediatrics, 12-460, University of California at Los Angeles, 10833 LeConte Avenue, Los Angeles, CA 90095-1752, USA
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May PA, Hamrick KJ, Corbin KD, Hasken JM, Marais AS, Brooke LE, Blankenship J, Hoyme HE, Gossage JP. Dietary intake, nutrition, and fetal alcohol spectrum disorders in the Western Cape Province of South Africa. Reprod Toxicol 2014; 46:31-9. [PMID: 24568797 DOI: 10.1016/j.reprotox.2014.02.002] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Revised: 01/10/2014] [Accepted: 02/15/2014] [Indexed: 01/30/2023]
Abstract
In this study, we describe the nutritional status of women from a South African community with very high rates of fetal alcohol spectrum disorders (FASD). Nutrient intake (24-h recall) of mothers of children with FASD was compared to mothers of normal controls. Nutrient adequacy was assessed using Dietary Reference Intakes (DRIs). More than 50% of all mothers were below the Estimated Average Requirement (EAR) for vitamins A, D, E, and C, thiamin, riboflavin, vitamin B6, folate, calcium, magnesium, iron, and zinc. Mean intakes were below the Adequate Intake (AI) for vitamin K, potassium, and choline. Mothers of children with FASD reported significantly lower intake of calcium, docosapentaenoic acid (DPA), riboflavin, and choline than controls. Lower intake of multiple key nutrients correlates significantly with heavy drinking. Poor diet quality and multiple nutritional inadequacies coupled with prenatal alcohol exposure may increase the risk for FASD in this population.
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Affiliation(s)
- Philip A May
- University of North Carolina at Chapel Hill, Nutrition Research Institute, Gillings School of Global Public Health, USA; The University of New Mexico Center on Alcoholism, Substance Abuse, and Addictions (CASAA), Albuquerque, USA.
| | | | - Karen D Corbin
- University of North Carolina at Chapel Hill, Nutrition Research Institute, Gillings School of Global Public Health, USA
| | - Julie M Hasken
- University of North Carolina at Chapel Hill, Nutrition Research Institute, Gillings School of Global Public Health, USA
| | - Anna-Susan Marais
- Stellenbosch University, Faculty of Health Sciences, Tygerberg, South Africa
| | - Lesley E Brooke
- Formerly with the University of Cape Town, Foundation for Alcohol Related Research (FARR), Cape Town, South Africa
| | - Jason Blankenship
- The University of New Mexico Center on Alcoholism, Substance Abuse, and Addictions (CASAA), Albuquerque, USA
| | - H Eugene Hoyme
- Sanford Research and Sanford School of Medicine, The University of South Dakota, Sioux Falls, USA
| | - J Phillip Gossage
- The University of New Mexico Center on Alcoholism, Substance Abuse, and Addictions (CASAA), Albuquerque, USA
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Weiss LA, Chambers CD. Associations between multivitamin supplement use and alcohol consumption before pregnancy: Pregnancy Risk Assessment Monitoring System, 2004 to 2008. Alcohol Clin Exp Res 2013; 37:1595-600. [PMID: 23906504 PMCID: PMC4049164 DOI: 10.1111/acer.12120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 02/01/2013] [Indexed: 11/26/2022]
Abstract
BACKGROUND Approximately 50 to 70% of childbearing-aged women consume alcohol and up to 23% of pregnancies have some level of prenatal alcohol exposure. METHODS Using data from the Pregnancy Risk Assessment Monitoring System from 2004 to 2008, 111,644 women who completed questions relating to periconceptional alcohol use and multivitamin supplement use were included in the study. This study explored associations between periconceptional alcohol use and multivitamin supplementation use. Weighted multivariable logistic regression was used to explore associations, adjusting for maternal education, maternal ethnicity, maternal age, household income, and parity. RESULTS During the periconceptional period, a dose-dependent association was found where women who consumed alcohol (≤3 drinks/wk, odds ratio [OR] = 0.76; 4 to 6 drinks/wk, OR = 0.60; 7 to 13 drinks/wk, OR = 0.49; ≥14 drinks/wk, OR = 0.39) and binged on alcohol (1 time, OR = 0.76; 2 to 3 times, OR = 0.66; 4 to 5 times, OR = 0.56; ≥6 times, OR = 0.50) were significantly less likely to take a multivitamin supplement compared with those that did not consume alcohol. CONCLUSIONS These findings emphasize the importance of periconceptional multivitamin supplement use, especially among alcohol-consuming women of childbearing age.
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Affiliation(s)
- Lauren A Weiss
- Division of Dysmorphology and Teratology, Department of Pediatrics , University of California, San Diego, La Jolla, California
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Fuglestad AJ, Fink BA, Eckerle JK, Boys CJ, Hoecker HL, Kroupina MG, Zeisel SH, Georgieff MK, Wozniak JR. Inadequate intake of nutrients essential for neurodevelopment in children with fetal alcohol spectrum disorders (FASD). Neurotoxicol Teratol 2013; 39:128-32. [PMID: 23871794 DOI: 10.1016/j.ntt.2013.06.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 06/12/2013] [Accepted: 06/13/2013] [Indexed: 11/28/2022]
Abstract
This study evaluated dietary intake in children with fetal alcohol spectrum disorders (FASD). Pre-clinical research suggests that nutrient supplementation may attenuate cognitive and behavioral deficits in FASD. Currently, the dietary adequacy of essential nutrients in children with FASD is unknown. Dietary data were collected as part of a randomized, double-blind controlled trial of choline supplementation in FASD. Participants included 31 children with FASD, ages 2.5-4.9 years at enrollment. Dietary intake data was collected three times during the nine-month study via interview-administered 24-hour recalls with the Automated Self-Administered 24-hour Recall. Dietary intake of macronutrients and 17 vitamins/minerals from food was averaged across three data collection points. Observed nutrient intakes were compared to national dietary intake data of children ages 2-5 years (What we Eat in America, NHANES 2007-2008) and to the Dietary Reference Intakes. Compared to the dietary intakes of children in the NHANES sample, children with FASD had lower intakes of saturated fat, vitamin D, and calcium. The majority (>50%) of children with FASD did not meet the Recommended Dietary Allowance (RDA) or Adequate Intake (AI) for fiber, n-3 fatty acids, vitamin D, vitamin E, vitamin K, choline, and calcium. This pattern of dietary intake in children with FASD suggests that there may be opportunities to benefit from nutritional intervention. Supplementation with several nutrients, including choline, vitamin D, and n-3 fatty acids, has been shown in animal models to attenuate the cognitive deficits of FASD. These results highlight the potential of nutritional clinical trials in FASD.
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