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Li YS, Jiang HC. Integrating molecular pathway with genome-wide association data for causality identification in breast cancer. Discov Oncol 2024; 15:254. [PMID: 38954227 PMCID: PMC11219684 DOI: 10.1007/s12672-024-01125-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/26/2024] [Indexed: 07/04/2024] Open
Abstract
OBJECTIVE The study purpose was to explore the causal association between pyruvate metabolism and breast cancer (BC), as well as the molecular role of key metabolic genes, by using bioinformatics and Mendelian randomization (MR) analysis. METHODS We retrieved and examined diverse datasets from the GEO database to ascertain differentially acting genes (DAGs) in BC via differential expression analysis. Following this, we performed functional and pathway enrichment analyses to ascertain noteworthy molecular functions and metabolic pathways in BC. Employing MR analysis, we established a causal association between pyruvate metabolism and the susceptibility to BC. Additionally, utilizing the DGIdb database, we identified potential targeted medications that act on genes implicated in the pyruvate metabolic pathway and formulated a competing endogenous RNA (ceRNA) regulatory network in BC. RESULTS We collected the datasets GSE54002, GSE70947, and GSE22820, and identified a total of 1127 DEGs between the BC and NC groups. GO and KEGG enrichment analysis showed that the molecular functions of these DEGs mainly included mitotic nuclear division, extracellular matrix, signaling receptor activator activity, etc. Metabolic pathways were mainly concentrated in PI3K-Akt signaling pathway, Cytokine-cytokine receptor binding and Pyruvate, Tyrosine, Propanoate and Phenylalanine metabolism, etc. In addition, MR analysis demonstrated a causal relationship between pyruvate metabolism and BC risk. Finally, we constructed a regulatory network between pathway genes (ADH1B, ACSS2, ACACB, ADH1A, ALDH2, and ADH1C) and targeted drugs, as well as a ceRNA (lncRNA-miRNA-mRNA) regulatory network for BC, further revealing their interactions. CONCLUSIONS Our research revealed a causal association between pyruvate metabolism and BC risk, found that ADH1B, ACSS2, ACACB, ADH1A, ALDH2, and ADH1C takes place an important part in the development of BC in the molecular mechanisms related to pyruvate metabolism, and identified some potential targeted small molecule drugs.
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Affiliation(s)
- Yan-Shuang Li
- Department of Breast Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Hong-Chuan Jiang
- Department of Breast Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China.
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Darbinian N, Merabova N, Tatevosian G, Morrison M, Darbinyan A, Zhao H, Goetzl L, Selzer ME. Biomarkers of Affective Dysregulation Associated with In Utero Exposure to EtOH. Cells 2023; 13:2. [PMID: 38201206 PMCID: PMC10778368 DOI: 10.3390/cells13010002] [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: 11/04/2023] [Revised: 12/13/2023] [Accepted: 12/16/2023] [Indexed: 01/12/2024] Open
Abstract
INTRODUCTION Children with fetal alcohol spectrum disorders (FASD) exhibit behavioral and affective dysregulation, including hyperactivity and depression. The mechanisms are not known, but they could conceivably be due to postnatal social or environmental factors. However, we postulate that, more likely, the affective dysregulation is associated with the effects of EtOH exposure on the development of fetal serotonergic (5-HT) and/or dopaminergic (DA) pathways, i.e., pathways that in postnatal life are believed to regulate mood. Many women who use alcohol (ethanol, EtOH) during pregnancy suffer from depression and take selective serotonin reuptake inhibitors (SSRIs), which might influence these monoaminergic pathways in the fetus. Alternatively, monoaminergic pathway abnormalities might reflect a direct effect of EtOH on the fetal brain. To distinguish between these possibilities, we measured their expressions in fetal brains and in fetal brain-derived exosomes (FB-Es) isolated from the mothers' blood. We hypothesized that maternal use of EtOH and/or SSRIs during pregnancy would be associated with impaired fetal neural development, detectable as abnormal levels of monoaminergic and apoptotic biomarkers in FB-Es. METHODS Fetal brain tissues and maternal blood were collected at 9-23 weeks of pregnancy. EtOH groups were compared with unexposed controls matched for gestational age (GA). The expression of 84 genes associated with the DA and 5-HT pathways was analyzed by quantitative reverse transcription polymerase chain reaction (qRT-PCR) on microarrays. FB-Es also were assayed for serotonin transporter protein (SERT) and brain-derived neurotrophic factor (BDNF) by enzyme-linked immunosorbent assay (ELISA). RESULTS Six EtOH-exposed human fetal brain samples were compared to SSRI- or polydrug-exposed samples and to unexposed controls. EtOH exposure was associated with significant upregulation of DA receptor D3 and 5-HT receptor HTR2C, while HTR3A was downregulated. Monoamine oxidase A (MAOA), MAOB, the serine/threonine kinase AKT3, and caspase-3 were upregulated, while mitogen-activated protein kinase 1 (MAPK1) and AKT2 were downregulated. ETOH was associated with significant upregulation of the DA transporter gene, while SERT was downregulated. There were significant correlations between EtOH exposure and (a) caspase-3 activation, (b) reduced SERT protein levels, and (c) reduced BDNF levels. SSRI exposure independently increased caspase-3 activity and downregulated SERT and BDNF. Early exposure to EtOH and SSRI together was associated synergistically with a significant upregulation of caspase-3 and a significant downregulation of SERT and BDNF. Reduced SERT and BDNF levels were strongly correlated with a reduction in eye diameter, a somatic manifestation of FASD. CONCLUSIONS Maternal use of EtOH and SSRI during pregnancy each was associated with changes in fetal brain monoamine pathways, consistent with potential mechanisms for the affective dysregulation associated with FASD.
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Affiliation(s)
- Nune Darbinian
- Center for Neural Repair and Rehabilitation (Shriners Hospitals Pediatric Research Center), Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (N.M.); (G.T.)
| | - Nana Merabova
- Center for Neural Repair and Rehabilitation (Shriners Hospitals Pediatric Research Center), Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (N.M.); (G.T.)
- Medical College of Wisconsin-Prevea Health, Green Bay, WI 54304, USA
| | - Gabriel Tatevosian
- Center for Neural Repair and Rehabilitation (Shriners Hospitals Pediatric Research Center), Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (N.M.); (G.T.)
| | - Mary Morrison
- Center for Substance Abuse Research, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
- Department of Psychiatry, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Armine Darbinyan
- Department of Pathology, Yale University School of Medicine, New Haven, CT 06520, USA;
| | - Huaqing Zhao
- Center for Biostatistics and Epidemiology, Department of Biomedical Education and Data Science, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
| | - Laura Goetzl
- Department of Obstetrics & Gynecology, University of Texas, Houston, TX 77030, USA;
| | - Michael Edgar Selzer
- Center for Neural Repair and Rehabilitation (Shriners Hospitals Pediatric Research Center), Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA; (N.M.); (G.T.)
- Department of Neurology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
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Liu L, Wen Y, Ni Q, Chen L, Wang H. Prenatal ethanol exposure and changes in fetal neuroendocrine metabolic programming. Biol Res 2023; 56:61. [PMID: 37978540 PMCID: PMC10656939 DOI: 10.1186/s40659-023-00473-y] [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: 06/07/2023] [Accepted: 11/08/2023] [Indexed: 11/19/2023] Open
Abstract
Prenatal ethanol exposure (PEE) (mainly through maternal alcohol consumption) has become widespread. However, studies suggest that it can cause intrauterine growth retardation (IUGR) and multi-organ developmental toxicity in offspring, and susceptibility to various chronic diseases (such as neuropsychiatric diseases, metabolic syndrome, and related diseases) in adults. Through ethanol's direct effects and its indirect effects mediated by maternal-derived glucocorticoids, PEE alters epigenetic modifications and organ developmental programming during fetal development, which damages the offspring health and increases susceptibility to various chronic diseases after birth. Ethanol directly leads to the developmental toxicity of multiple tissues and organs in many ways. Regarding maternal-derived glucocorticoid-mediated IUGR, developmental programming, and susceptibility to multiple conditions after birth, ethanol induces programmed changes in the neuroendocrine axes of offspring, such as the hypothalamus-pituitary-adrenal (HPA) and glucocorticoid-insulin-like growth factor 1 (GC-IGF1) axes. In addition, the differences in ethanol metabolic enzymes, placental glucocorticoid barrier function, and the sensitivity to glucocorticoids in various tissues and organs mediate the severity and sex differences in the developmental toxicity of ethanol exposure during pregnancy. Offspring exposed to ethanol during pregnancy have a "thrifty phenotype" in the fetal period, and show "catch-up growth" in the case of abundant nutrition after birth; when encountering adverse environments, these offspring are more likely to develop diseases. Here, we review the developmental toxicity, functional alterations in multiple organs, and neuroendocrine metabolic programming mechanisms induced by PEE based on our research and that of other investigators. This should provide new perspectives for the effective prevention and treatment of ethanol developmental toxicity and the early prevention of related fetal-originated diseases.
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Affiliation(s)
- Liang Liu
- Department of Orthopedic Surgery, Joint Disease Research Center of Wuhan University, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Yinxian Wen
- Department of Orthopedic Surgery, Joint Disease Research Center of Wuhan University, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Qubo Ni
- Department of Orthopedic Surgery, Joint Disease Research Center of Wuhan University, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China
| | - Liaobin Chen
- Department of Orthopedic Surgery, Joint Disease Research Center of Wuhan University, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
| | - Hui Wang
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, 430071, China.
- Department of Pharmacology, Wuhan University School of Basic Medical Sciences, Wuhan, 430071, China.
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Brunton R, Dryer R. Alcohol consumption after pregnancy awareness and the additive effect of pregnancy-related anxiety and child abuse. CURRENT PSYCHOLOGY 2023. [DOI: 10.1007/s12144-023-04387-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
AbstractThis study examined whether pregnant women alter their alcohol consumption upon pregnancy awareness and any additive effect of a maternal history of child abuse and pregnancy-related anxiety in predicting antenatal alcohol consumption. Pregnant women (N = 548, M = 31.44, SD = 4.58) completed an online survey consisting of the Pregnancy-related Anxiety Scale, Adverse Childhood Experience Questionnaire, questions on alcohol consumption and demographics. The Wilcoxon test examined difference scores between pre-pregnancy awareness and post-awareness drinking. More women reduced or ceased drinking after pregnancy awareness (M = 0.15, SD = 1.03) than before pregnancy recognition (M = 3.12, SD = 3.91). Only two women increased their alcohol consumption, with 140 reporting no change. In the hierarchical regression analysis, child abuse was not significant in the model, whereas pregnancy-related anxiety predicted alcohol consumption, with pre-pregnancy drinking the strongest predictor. There was no significant interaction effect between pregnancy-related anxiety and child abuse. While limited by a cross-sectional design and single questions to assess alcohol intake, our findings are consistent with extant literature. Findings related to child abuse were not significant, and likely due to low prevalence in the sample, Despite this, we further established that pregnancy-related anxiety remains a significant predictor of antenatal drinking regardless of how much alcohol a woman may consume pre-pregnancy. This relationship may be explained by drinking used to cope with pregnancy-related anxieties. While current guidelines recommend alcohol screening, many women may not accurately report their alcohol intake screening for pregnancy-related anxiety may provide an avenue to identify women more at risk of drinking during pregnancy.
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Genetic Influences on Fetal Alcohol Spectrum Disorder. Genes (Basel) 2023; 14:genes14010195. [PMID: 36672936 PMCID: PMC9859092 DOI: 10.3390/genes14010195] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/14/2023] Open
Abstract
Fetal alcohol spectrum disorder (FASD) encompasses the range of deleterious outcomes of prenatal alcohol exposure (PAE) in the affected offspring, including developmental delay, intellectual disability, attention deficits, and conduct disorders. Several factors contribute to the risk for and severity of FASD, including the timing, dose, and duration of PAE and maternal factors such as age and nutrition. Although poorly understood, genetic factors also contribute to the expression of FASD, with studies in both humans and animal models revealing genetic influences on susceptibility. In this article, we review the literature related to the genetics of FASD in humans, including twin studies, candidate gene studies in different populations, and genetic testing identifying copy number variants. Overall, these studies suggest different genetic factors, both in the mother and in the offspring, influence the phenotypic outcomes of PAE. While further work is needed, understanding how genetic factors influence FASD will provide insight into the mechanisms contributing to alcohol teratogenicity and FASD risk and ultimately may lead to means for early detection and intervention.
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Bandoli G, Hayes S, Delker E. Low to Moderate Prenatal Alcohol Exposure and Neurodevelopmental Outcomes: A Narrative Review and Methodological Considerations. Alcohol Res 2023; 43:01. [PMID: 36950180 PMCID: PMC10027299 DOI: 10.35946/arcr.v43.1.01] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2023] Open
Abstract
PURPOSE Although abstinence is recommended in pregnancy, many pregnancies are exposed to alcohol. Observational studies of the effects of low to moderate prenatal alcohol exposure (PAE) and neurodevelopmental outcomes have yielded inconsistent results, with some studies finding an increased risk of adverse neurobehavioral and cognitive outcomes, and other studies finding no changes or reduced risk of the same outcomes. The purpose of this narrative review is to summarize these inconsistencies and apply a methodological framework to discuss how different parameters contribute to the findings. The authors also provide recommendations on how to advance future research in this area. SEARCH METHODS The PubMed, Web of Science, and Embase databases were searched, along with reference lists of selected systematic reviews and meta-analyses. Search terms used were (infant or child or children or adolescent or offspring) AND (low or light or mild or moderate or low-to-moderate) AND (drinking or alcohol or drinks) AND (pregnancy or prenatal or fetal) AND (neurodevelopment or behavioral or psychological or cognitive or developmental) NOT (mice or rat or fish or animal) NOT (meta-analysis or review). Peer-reviewed original research studies were included if they analyzed associations between an exposure defined and characterized as low/light or moderate PAE with offspring neurodevelopmental outcomes. Animal studies, studies that did not provide clear cutoff points to classify PAE categories, studies lacking an abstinence control group, and studies that did not present a multivariable-adjusted measure of association were excluded. SEARCH RESULTS The searches identified 2,422 papers, with 36 papers meeting eligibility criteria. These studies were carried out across nine countries and included samples ranging from approximately 500 to 40,000 participants. Cognitive, academic, socioemotional, and behavioral outcomes were assessed from infancy through age 19. DISCUSSION AND CONCLUSION When the findings from the selected articles were summarized by geographic region, exposure definition, or neurodevelopmental outcome, no consistent observations or patterns emerged between low to moderate PAE and offspring outcomes. Although some studies found positive (i.e., beneficial) associations between low to moderate PAE and outcomes (primarily outcomes related to cognition) and others found negative (i.e., detrimental) associations (primarily for behavioral outcomes), most findings were null (i.e., showed no effect of PAE). The heterogeneity in study results is likely due to methodological issues, including residual confounding, effect measure modification, and exposure misclassification that make synthesis of studies difficult. Alternative study designs, including longitudinal trajectory analysis, sibling design, negative controls, and instrumental variable analyses, may reduce biases and are discussed. To date, the consequences of light to moderate levels of PAE on neurodevelopment remain unresolved; studies that advance methodological rigor will be important contributions to the field.
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Affiliation(s)
- Gretchen Bandoli
- Department of Pediatrics, University of California San Diego, La Jolla, California
| | - Shana Hayes
- Department of Pediatrics, University of California San Diego, La Jolla, California
| | - Erin Delker
- Department of Pediatrics, University of California San Diego, La Jolla, California
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Bennett R, Bowden C. Can routine screening for alcohol consumption in pregnancy be ethically and legally justified? JOURNAL OF MEDICAL ETHICS 2022; 48:512-516. [PMID: 35321935 DOI: 10.1136/medethics-2021-107996] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 02/24/2022] [Indexed: 06/14/2023]
Abstract
In the UK, it has been proposed that alongside the current advice to abstain from alcohol completely in pregnancy, there should be increased screening of pregnant women for alcohol consumption in order to prevent instances of fetal alcohol spectrum disorder. The Scottish Intercollegiate Guidelines Network published guidelines in 2019 recommending that standardised screening questionnaires and associated use of biomarkers should be considered to identify alcohol exposure in pregnancy. This was followed in 2020 by the National Institute for Health and Care Excellence Draft Quality Standard, which recommended that pregnant women should have information on their alcohol consumption recorded throughout their pregnancy and this information transferred to the child's health records. Most recently, Public Health England has stated that the alcohol intake of all women should be recorded throughout pregnancy, not just at the initial booking appointment and that tools such as blood biomarkers and meconium testing should be researched in order to determine true prevalence rates of alcohol in pregnancy. We argue that this proposed enhanced screening undermines women's autonomy and their legal right to be sufficiently informed to consent to screening. We argue that there is no evidence that this kind of screening will result in a reduction of fetal harm and there is a danger that undermining the autonomy of women and the trust relationship between women and healthcare professionals may even increase harm to future children.
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Affiliation(s)
- Rebecca Bennett
- Department of Law, Centre for Social Ethics and Policy, The University of Manchester, Manchester, UK
| | - Catherine Bowden
- Department of Law, Centre for Social Ethics and Policy, The University of Manchester, Manchester, UK
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8
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Okulicz-Kozaryn K. Is Public Health Response to the Phenomenon of Alcohol Use during Pregnancy Adequate to the Polish Women’s Needs? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19084552. [PMID: 35457420 PMCID: PMC9025347 DOI: 10.3390/ijerph19084552] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 04/01/2022] [Accepted: 04/06/2022] [Indexed: 11/16/2022]
Abstract
Due to the risks it poses to a child’s health, drinking alcohol during pregnancy is a serious problem that the public health sector is struggling to deal with. The reasons why women who do not have alcohol problems do not give up drinking alcohol completely during pregnancy are still poorly understood. And the knowledge available about them does not translate into communication strategies in Poland. The analysis of standards and examples of good practice allows to formulate proposals for improving the quality and effectiveness of social campaigns addressed to the general population and women of childbearing age in order to reduce the risk associated with the prenatal exposure to alcohol.
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Affiliation(s)
- Katarzyna Okulicz-Kozaryn
- Institute of Mother and Child, 01-211 Warsaw, Poland;
- National Centre for Prevention of Addictions, 02-776 Warsaw, Poland
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9
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Haan E, Sallis HM, Ystrom E, Njølstad PR, Andreassen OA, Reichborn-Kjennerud T, Munafò MR, Havdahl A, Zuccolo L. Maternal and offspring genetic risk score analyses of fetal alcohol exposure and attention-deficit hyperactivity disorder risk in offspring. Alcohol Clin Exp Res 2021; 45:2090-2102. [PMID: 34486127 PMCID: PMC9293034 DOI: 10.1111/acer.14692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 12/02/2022]
Abstract
Background Studies investigating the effects of prenatal alcohol exposure on childhood attention‐deficit hyperactivity disorder (ADHD) symptoms using conventional observational designs have reported inconsistent findings, which may be affected by unmeasured confounding and maternal and fetal ability to metabolize alcohol. We used genetic variants from the alcohol metabolizing genes, alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH), as proxies for fetal alcohol exposure to investigate their association with risk of offspring ADHD symptoms around age 7–8 years. Methods We used data from 3 longitudinal pregnancy cohorts: Avon Longitudinal Study of Parents and Children (ALSPAC), Generation R study (GenR), and the Norwegian Mother, Father and Child Cohort study (MoBa). Genetic risk scores (GRS) for alcohol use and metabolism using 36 single nucleotide polymorphisms (SNPs) from ADH and ALDH genes were calculated for mothers (NALSPAC = 8196; NMOBA = 13,614), fathers (NMOBA = 13,935), and offspring (NALSPAC=8,237; NMOBA=14,112; NGENR=2,661). Associations between maternal GRS and offspring risk of ADHD symptoms were tested in the full sample to avoid collider bias. Offspring GRS analyses were stratified by maternal drinking status. Results The pooled estimate in maternal GRS analyses adjusted for offspring GRS in ALSPAC and MoBa was OR = 0.99, 95%CI 0.97–1.02. The pooled estimate in offspring GRS analyses stratified by maternal drinking status across all the cohorts was as follows: ORDRINKING = 0.98, 95% CI 0.94–1.02; ORNO DRINKING = 0.99, 95% CI 0.97–1.02. These findings remained similar after accounting for maternal genotype data in ALSPAC and maternal and paternal genotype data in MoBa. Conclusions We did not find evidence for a causal effect of fetal alcohol exposure on risk of ADHD symptoms in offspring. The results may be affected by limited power to detect small effects and outcome assessment.
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Affiliation(s)
- Elis Haan
- School of Psychological Science, University of Bristol, Bristol, UK.,MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Hannah M Sallis
- School of Psychological Science, University of Bristol, Bristol, UK.,MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Eivind Ystrom
- Department of Psychology, PROMENTA Research Center, University of Oslo, Oslo, Norway.,Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway
| | - Pål Rasmus Njølstad
- Department of Clinical Science, Center for Diabetes Research, University of Bergen, Bergen, Norway.,Department of Pediatrics and Adolescents, Haukeland University Hospital, Bergen, Norway
| | - Ole A Andreassen
- NORMENT Centre, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.,Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Ted Reichborn-Kjennerud
- Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Marcus R Munafò
- School of Psychological Science, University of Bristol, Bristol, UK.,MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
| | - Alexandra Havdahl
- Department of Psychology, PROMENTA Research Center, University of Oslo, Oslo, Norway.,Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway.,Nic Waals Institute, Lovisenberg Diaconal Hospital, Oslo, Norway
| | - Luisa Zuccolo
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK.,Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
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Gomes LA, Cardoso KMM, Reis AMS, Melo FG, Serakides R, Ocarino NM. Effect of ethanol consumption during pregnancy and lactation on bone histomorphometry and in vitro osteogenic differentiation of bone marrow mesenchymal stem cells in maternal rats. Alcohol 2021; 95:51-64. [PMID: 34284095 DOI: 10.1016/j.alcohol.2021.07.001] [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: 03/31/2020] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 11/26/2022]
Abstract
This study aimed to evaluate the effect of maternal ethanol consumption during gestation and lactation on bone mass and osteogenic differentiation of mesenchymal stem cells of the bone marrow (BMMSCs) in rats. Thirteen adult Wistar rats were used. The rats were mated, and after confirmation of gestation, (day 0) they were distributed in two groups: the control group and the ethanol-treated group. From the ninth day of gestation, the rats of the ethanol and control groups were administered 40% alcoholic solution (4 g ethanol/kg) and distilled water, respectively, daily via gavage until the thirtieth day of lactation. The BMMSCs were extracted from the right femurs and tibiae and cultured using an osteogenic medium for 7, 14, and 21 days. The conversion of MTT to formazan crystals, alkaline phosphatase activity, and percentages of cells per field were analyzed. The number of mineralized nodules per field was examined, and quantification of the gene transcripts for osteopontin, osteocalcin, and BMP-2 was evaluated on day 21 by real-time RT-PCR. Morphometric evaluations of the percentage of trabecular bone and cortical thickness in the left femur and tibia were performed. The means were compared by the Student's t-test, and the differences were considered significant if p < 0.05. The BMMSCs of the rats that consumed ethanol during gestation and lactation, when subjected to osteogenic differentiation in vitro, demonstrated higher conversion of MTT to formazan, higher alkaline phosphatase activity, a higher percentage of cells per field, higher expression of BMP-2, and higher synthesis of mineralized nodules when compared to those of control rat cells. However, there was no significant difference in the percentage of trabecular bone or cortical thickness between both groups. Hence, the consumption of ethanol during pregnancy and lactation did not alter the trabecular and cortical bone tissues of the femur and tibia compared with that of pregnant and lactating control rats that did not consume alcohol, despite BMMSCs showing higher osteogenic differentiation under in vitro conditions.
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11
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Mamluk L, Jones T, Ijaz S, Edwards HB, Savović J, Leach V, Moore THM, von Hinke S, Lewis SJ, Donovan JL, Lawlor DA, Davey Smith G, Fraser A, Zuccolo L. Evidence of detrimental effects of prenatal alcohol exposure on offspring birthweight and neurodevelopment from a systematic review of quasi-experimental studies. Int J Epidemiol 2021; 49:1972-1995. [PMID: 31993631 PMCID: PMC7825937 DOI: 10.1093/ije/dyz272] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 11/25/2019] [Accepted: 01/08/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Systematic reviews of prenatal alcohol exposure effects generally only include conventional observational studies. However, estimates from such studies are prone to confounding and other biases. OBJECTIVES To systematically review the evidence on the effects of prenatal alcohol exposure from randomized controlled trials (RCTs) and observational designs using alternative analytical approaches to improve causal inference. SEARCH STRATEGY Medline, Embase, Web of Science, PsychINFO from inception to 21 June 2018. Manual searches of reference lists of retrieved papers. SELECTION CRITERIA RCTs of interventions to stop/reduce drinking in pregnancy and observational studies using alternative analytical methods (quasi-experimental studies e.g. Mendelian randomization and natural experiments, negative control comparisons) to determine the causal effects of prenatal alcohol exposure on pregnancy and longer-term offspring outcomes in human studies. DATA COLLECTION AND ANALYSIS One reviewer extracted data and another checked extracted data. Risk of bias was assessed using customized risk of bias tools. A narrative synthesis of findings was carried out and a meta-analysis for one outcome. MAIN RESULTS Twenty-three studies were included, representing five types of study design, including 1 RCT, 9 Mendelian randomization and 7 natural experiment studies, and reporting on over 30 outcomes. One study design-outcome combination included enough independent results to meta-analyse. Based on evidence from several studies, we found a likely causal detrimental role of prenatal alcohol exposure on cognitive outcomes, and weaker evidence for a role in low birthweight. CONCLUSION None of the included studies was judged to be at low risk of bias in all domains, results should therefore be interpreted with caution. SYSTEMATIC REVIEW REGISTRATION This study is registered with PROSPERO, registration number CRD42015015941.
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Affiliation(s)
- Loubaba Mamluk
- MRC Integrative Epidemiology Unit, Department of Population Health Sciences, University of Bristol, Bristol, UK
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Timothy Jones
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Sharea Ijaz
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Hannah B Edwards
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Jelena Savović
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Verity Leach
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Theresa H M Moore
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Stephanie von Hinke
- Department of Economics, School of Economics, Finance and Management, University of Bristol, Bristol, UK
| | - Sarah J Lewis
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
| | - Jenny L Donovan
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Deborah A Lawlor
- MRC Integrative Epidemiology Unit, Department of Population Health Sciences, University of Bristol, Bristol, UK
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR ARC West, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
- NIHR Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust, University of Bristol, Bristol, UK
| | - George Davey Smith
- MRC Integrative Epidemiology Unit, Department of Population Health Sciences, University of Bristol, Bristol, UK
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust, University of Bristol, Bristol, UK
| | - Abigail Fraser
- MRC Integrative Epidemiology Unit, Department of Population Health Sciences, University of Bristol, Bristol, UK
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
- NIHR Bristol Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust, University of Bristol, Bristol, UK
| | - Luisa Zuccolo
- MRC Integrative Epidemiology Unit, Department of Population Health Sciences, University of Bristol, Bristol, UK
- Department of Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
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12
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Diemer EW, Labrecque JA, Neumann A, Tiemeier H, Swanson SA. Mendelian randomisation approaches to the study of prenatal exposures: A systematic review. Paediatr Perinat Epidemiol 2021; 35:130-142. [PMID: 32779786 PMCID: PMC7891574 DOI: 10.1111/ppe.12691] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Mendelian randomisation (MR) designs apply instrumental variable techniques using genetic variants to study causal effects. MR is increasingly used to evaluate the role of maternal exposures during pregnancy on offspring health. OBJECTIVES We review the application of MR to prenatal exposures and describe reporting of methodologic challenges in this area. DATA SOURCES We searched PubMed, EMBASE, Medline Ovid, Cochrane Central, Web of Science, and Google Scholar. STUDY SELECTION AND DATA EXTRACTION Eligible studies met the following criteria: (a) a maternal pregnancy exposure; (b) an outcome assessed in offspring of the pregnancy; and (c) a genetic variant or score proposed as an instrument or proxy for an exposure. SYNTHESIS We quantified the frequency of reporting of MR conditions stated, techniques used to examine assumption plausibility, and reported limitations. RESULTS Forty-three eligible studies were identified. When discussing challenges or limitations, the most common issues described were known potential biases in the broader MR literature, including population stratification (n = 29), weak instrument bias (n = 18), and certain types of pleiotropy (n = 30). Of 22 studies presenting point estimates for the effect of exposure, four defined their causal estimand. Twenty-four studies discussed issues unique to prenatal MR, including selection on pregnancy (n = 1) and pleiotropy via postnatal exposure (n = 10) or offspring genotype (n = 20). CONCLUSIONS Prenatal MR studies frequently discuss issues that affect all MR studies, but rarely discuss problems specific to the prenatal context, including selection on pregnancy and effects of postnatal exposure. Future prenatal MR studies should report and attempt to falsify their assumptions, with particular attention to issues specific to prenatal MR. Further research is needed to evaluate the impacts of biases unique to prenatal MR in practice.
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Affiliation(s)
- Elizabeth W. Diemer
- Department of Child and Adolescent PsychiatryErasmus MCRotterdamThe Netherlands
| | | | - Alexander Neumann
- Department of Child and Adolescent PsychiatryErasmus MCRotterdamThe Netherlands,Lady Davis Institute for Medical ResearchJewish General HospitalMontrealQCCanada
| | - Henning Tiemeier
- Department of Child and Adolescent PsychiatryErasmus MCRotterdamThe Netherlands,Department of Social and Behavioral ScienceHarvard T.H. Chan School of Public HealthBostonMAUSA
| | - Sonja A. Swanson
- Department of EpidemiologyErasmus MCRotterdamThe Netherlands,Department of EpidemiologyHarvard T.H. Chan School of Public HealthBostonMAUSA
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13
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Oei JL. Alcohol use in pregnancy and its impact on the mother and child. Addiction 2020; 115:2148-2163. [PMID: 32149441 DOI: 10.1111/add.15036] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/23/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022]
Abstract
AIMS To review the impact of prenatal alcohol exposure on the outcomes of the mother and child. DESIGN Narrative review. SETTING Review of literature. PARTICIPANTS Mothers and infants affected by prenatal alcohol use. MEASUREMENTS Outcomes of mothers and children. FINDINGS Prenatal alcohol exposure is one of the most important causes of preventable cognitive impairment in the world. The developing neurological system is exquisitely sensitive to harm from alcohol and there is now also substantial evidence that alcohol-related harm can extend beyond the individual person, leading to epigenetic changes and intergenerational vulnerability and disadvantage. There is no known safe level or timing of drinking for pregnant or lactating women and binge drinking (> four drinks within 2 hours for women) is the most harmful. Alcohol-exposure increases the risk of congenital problems, including Fetal Alcohol Spectrum Disorder (FASD) and its most severe form, Fetal Alcohol Syndrome (FAS). CONCLUSION The impact of FASD and FAS is enduring and life-long with no current treatment or cure. Emerging therapeutic options may mitigate the worst impact of alcohol exposure but significant knowledge gaps remain. This review discusses the history, epidemiology and clinical presentations of prenatal alcohol exposure, focusing on FASD and FAS, and the impact of evidence on future research, practice and policy directions.
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Affiliation(s)
- Ju Lee Oei
- School of Women's and Children's Health, University of New South Wales, Randwick, NSW, Australia.,Department of Newborn Care, the Royal Hospital for Women, Randwick, NSW, Australia.,Drug and Alcohol Services, Murrumbidgee Local Health District, NSW, Australia
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14
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Abstract
Over the past century, differences in alcohol use and related harms between males and females in the United States have diminished considerably. In general, males still consume more alcohol and experience and cause more alcohol-related injuries and deaths than females do, but the gaps are narrowing. Among adolescents and emerging adults, gaps in drinking have narrowed primarily because alcohol use among males has declined more than alcohol use among females. Among adults, alcohol use is increasing for women but not for men. Rates of alcohol-related emergency department visits, hospitalizations, and deaths all have increased among adults during the past two decades. Consistent with the changing patterns of alcohol use, increases in these outcomes have been larger for women. Recent studies also suggest that females are more susceptible than males to alcohol-induced liver inflammation, cardiovascular disease, memory blackouts, hangovers, and certain cancers. Prevention strategies that address the increases in alcohol consumption and unique health risks for women are needed.
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Affiliation(s)
- Aaron M White
- National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, Maryland
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15
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Rees JMB, Foley CN, Burgess S. Factorial Mendelian randomization: using genetic variants to assess interactions. Int J Epidemiol 2020; 49:1147-1158. [PMID: 31369124 PMCID: PMC7750987 DOI: 10.1093/ije/dyz161] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Factorial Mendelian randomization is the use of genetic variants to answer questions about interactions. Although the approach has been used in applied investigations, little methodological advice is available on how to design or perform a factorial Mendelian randomization analysis. Previous analyses have employed a 2 × 2 approach, using dichotomized genetic scores to divide the population into four subgroups as in a factorial randomized trial. METHODS We describe two distinct contexts for factorial Mendelian randomization: investigating interactions between risk factors, and investigating interactions between pharmacological interventions on risk factors. We propose two-stage least squares methods using all available genetic variants and their interactions as instrumental variables, and using continuous genetic scores as instrumental variables rather than dichotomized scores. We illustrate our methods using data from UK Biobank to investigate the interaction between body mass index and alcohol consumption on systolic blood pressure. RESULTS Simulated and real data show that efficiency is maximized using the full set of interactions between genetic variants as instruments. In the applied example, between 4- and 10-fold improvement in efficiency is demonstrated over the 2 × 2 approach. Analyses using continuous genetic scores are more efficient than those using dichotomized scores. Efficiency is improved by finding genetic variants that divide the population at a natural break in the distribution of the risk factor, or else divide the population into more equal-sized groups. CONCLUSIONS Previous factorial Mendelian randomization analyses may have been underpowered. Efficiency can be improved by using all genetic variants and their interactions as instrumental variables, rather than the 2 × 2 approach.
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Affiliation(s)
- Jessica M B Rees
- Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- Edinburgh Clinical Trials Unit, Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | | | - Stephen Burgess
- Cardiovascular Epidemiology Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, UK
- MRC Biostatistics Unit, University of Cambridge, Cambridge, UK
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16
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Nilsen FM, Ruiz JD, Tulve NS. A Meta-Analysis of Stressors from the Total Environment Associated with Children's General Cognitive Ability. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17155451. [PMID: 32751096 PMCID: PMC7432904 DOI: 10.3390/ijerph17155451] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 12/31/2022]
Abstract
General cognitive ability, often referred to as ‘general intelligence’, comprises a variety of correlated abilities. Childhood general cognitive ability is a well-studied area of research and can be used to predict social outcomes and perceived success. Early life stage (e.g., prenatal, postnatal, toddler) exposures to stressors (i.e., chemical and non-chemical stressors from the total (built, natural, social) environment) can impact the development of childhood cognitive ability. Building from our systematic scoping review (Ruiz et al., 2016), we conducted a meta-analysis to evaluate more than 100 stressors related to cognitive development. Our meta-analysis identified 23 stressors with a significant increase in their likelihood to influence childhood cognitive ability by 10% or more, and 80 stressors were observed to have a statistically significant effect on cognitive ability. Stressors most impactful to cognition during the prenatal period were related to maternal health and the mother’s ability to access information relevant to a healthy pregnancy (e.g., diet, lifestyle). Stressors most impactful to cognition during the early childhood period were dietary nutrients (infancy), quality of social interaction (toddler), and exposure to toxic substances (throughout early childhood). In conducting this analysis, we examined the relative impact of real-world exposures on cognitive development to attempt to understand the inter-relationships between exposures to both chemical and non-chemical stressors and early developmental life stages. Our findings suggest that the stressors observed to be the most influential to childhood cognitive ability are not permanent and can be broadly categorized as activities/behaviors which can be modified to improve childhood cognition. This meta-analysis supports the idea that there are complex relationships between a child’s total environment and early cognitive development.
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Affiliation(s)
- Frances M. Nilsen
- Office of Research and Development, U.S. Environmental Protection Agency Research Triangle Park, Durham, NC 27709, USA; (J.D.C.R.); (N.S.T.)
- Correspondence: ; Tel.: +1-919-541-2574
| | - Jazmin D.C. Ruiz
- Office of Research and Development, U.S. Environmental Protection Agency Research Triangle Park, Durham, NC 27709, USA; (J.D.C.R.); (N.S.T.)
- Honeywell International, Buffalo, NY 14210, USA
| | - Nicolle S. Tulve
- Office of Research and Development, U.S. Environmental Protection Agency Research Triangle Park, Durham, NC 27709, USA; (J.D.C.R.); (N.S.T.)
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17
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McQuire C, Daniel R, Hurt L, Kemp A, Paranjothy S. The causal web of foetal alcohol spectrum disorders: a review and causal diagram. Eur Child Adolesc Psychiatry 2020; 29:575-594. [PMID: 30648224 PMCID: PMC7250957 DOI: 10.1007/s00787-018-1264-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 12/05/2018] [Indexed: 12/21/2022]
Abstract
Foetal alcohol spectrum disorders (FASDs) are a leading cause of developmental disability. Prenatal alcohol use is the sole necessary cause of FASD, but it is not always sufficient. Multiple factors influence a child's susceptibility to FASD following prenatal alcohol exposure. Much of the FASD risk factor literature has been limited to discussions of association, rather than causation. While knowledge of predictor variables is important for identifying who is most at risk of FASD and for targeting interventions, causal knowledge is important for identifying effective mechanisms for prevention and intervention programmes. We conducted a systematic search and narrative synthesis of the evidence and used this to create a causal diagram (directed acyclic graph; DAG) to describe the causal pathways to FASD. Our results show that the aetiology of FASD is multifaceted and complex. FASD risk is determined by a range of lifestyle, sociodemographic, maternal, social, gestational, and genetic factors. The causal diagram that we present in this review provides a comprehensive summary of causal risk factors for FASD and can be used as a tool to inform data collection and statistical modelling strategies to minimise bias in future studies of FASD.
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Affiliation(s)
- Cheryl McQuire
- Population Health Sciences, Bristol Medical School, University of Bristol, Canynge Hall, 39 Whatley Road, Bristol, BS8 2PS, UK.
| | - R. Daniel
- Division of Population Medicine, Cardiff University, 3rd Floor, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS UK
| | - L. Hurt
- Division of Population Medicine, Cardiff University, 3rd Floor, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS UK
| | - A. Kemp
- Division of Population Medicine, Cardiff University, 3rd Floor, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS UK
| | - S. Paranjothy
- Division of Population Medicine, Cardiff University, 3rd Floor, Neuadd Meirionnydd, Heath Park, Cardiff, CF14 4YS UK
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18
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Light drinking during pregnancy: Social advantages explain positive correlates with child and early adolescent adjustment. Addict Behav 2019; 98:106003. [PMID: 31415972 DOI: 10.1016/j.addbeh.2019.05.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/05/2019] [Accepted: 05/23/2019] [Indexed: 11/20/2022]
Abstract
Maternal heavy alcohol use during pregnancy is harmful to offspring's health and adjustment. However, findings from studies on lower levels of prenatal drinking are mixed; a few even predict positive cognitive and psychosocial outcomes. Given that alcohol is a neurotoxin and teratogen, scholars question developmental benefits and point to residual confounding as a potential explanation, particularly as light drinkers are positively selected with respect to health and socioeconomic status. Using prospective, intergenerational data from the nationally-representative Millennium Cohort Study (MCS) in the United Kingdom, we studied associations between mother's drinking during pregnancy and children's cognitive and psychosocial outcomes at ages 3, 5, 7, 11, and 14 years (n = 10,454). We included early life confounders (e.g., maternal education, health, smoking) and mother's cognitive ability, and assessed robustness of relationships across outcomes and alternate drinking classifications. Results of a series of multivariable regression models found no association between light drinking and cognitive and psychosocial outcomes up to and including the age of 14, after controlling for key confounders. Light drinking during pregnancy was linked to higher socioeconomic advantages (e.g., mothers' higher education, professional/managerial occupation, home ownership, cognitive scores), which together accounted for positive associations between light drinking and children's outcomes. Mother's cognitive ability was an especially important confounder.
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19
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Howlett H, Mackenzie S, Gray WK, Rankin J, Nixon L, Brown NW. Assessing the prevalence of alcohol consumption in early pregnancy using blood biomarker analysis: a consistent pattern across north-east England? J Public Health (Oxf) 2019; 42:e74-e80. [DOI: 10.1093/pubmed/fdz039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 02/20/2019] [Accepted: 03/19/2019] [Indexed: 12/21/2022] Open
Abstract
Abstract
Background
We previously investigated the prevalence of alcohol consumption in early pregnancy in Northumbria Healthcare NHS Foundation Trust, a locality of north-east England. The prevalence was 1.4% based on blood sample biomarker analysis using carbohydrate deficient transferrin (CDT) and 3.5% for gamma-glutamyltransferase (GGT).
Aims
To supplement this research by investigating the prevalence of alcohol use using identical methods in a different locality of the same region.
Methods
Six-hundred random blood samples taken at the antenatal booking appointment were anonymously analysed for the presence of CDT, a validated marker of chronic alcohol exposure (normalizing 2–3 weeks from abstinence) and GGT, a liver enzyme elevated for up to 8 weeks after alcohol exposure.
Results
The North Tees and Hartlepool NHS Foundation Trust data revealed a CDT prevalence rate of 1.7% (95% CI: 0.7–2.9) and GGT prevalence rate of 4.2% (95% CI: 2.6–5.9). However, these measures are not sensitive to low levels of alcohol; and no overlapping cases were identified or a significant correlation demonstrated between CDT or GGT.
Discussion
These data support our earlier work. Prevalence rates according to CDT and GGT analysis were similar in both areas, suggesting similar patterns of sustained alcohol use in pregnancy across the region.
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Affiliation(s)
- Helen Howlett
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - Shonag Mackenzie
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - William K Gray
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - Judith Rankin
- Institute of Health & Society, Newcastle University, Newcastle Upon Tyne, UK
| | - Leanne Nixon
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - Nigel W Brown
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
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20
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Howe LJ, Sharp GC, Hemani G, Zuccolo L, Richmond S, Lewis SJ. Prenatal alcohol exposure and facial morphology in a UK cohort. Drug Alcohol Depend 2019; 197:42-47. [PMID: 30772781 DOI: 10.1016/j.drugalcdep.2018.11.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 01/20/2023]
Abstract
BACKGROUND High levels of prenatal alcohol exposure are known to cause an array of adverse outcomes including fetal alcohol syndrome (FAS); however, the effects of low to moderate exposure are less-well characterized. Previous findings suggest that differences in normal-range facial morphology may be a marker for alcohol exposure and related adverse effects. METHODS In the Avon Longitudinal Study of Parents and Children, we tested for an association between maternal alcohol consumption and six FAS-related facial phenotypes in their offspring, using both self-report questionnaires and the maternal genotype at rs1229984 in ADH1B as measures of maternal alcohol consumption. RESULTS In both self-reported alcohol consumption (N = 4233) and rs1229984 genotype (N = 3139) analyses, we found no strong statistical evidence for an association between maternal alcohol consumption and facial phenotypes tested. The directions of effect estimates were compatible with the known effects of heavy alcohol exposure, but confidence intervals were largely centered around zero. CONCLUSIONS There is no strong evidence, in a sample representative of the general population, for an effect of prenatal alcohol exposure on normal-range variation in facial morphology.
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Affiliation(s)
- Laurence J Howe
- MRC Integrative Epidemiology Unit, Population Health Sciences, Oakfield House, Oakfield Grove, University of Bristol, BS8 2BN, UK; Institute of Cardiovascular Science, University College London, UK
| | - Gemma C Sharp
- MRC Integrative Epidemiology Unit, Population Health Sciences, Oakfield House, Oakfield Grove, University of Bristol, BS8 2BN, UK; Bristol Dental School, University of Bristol, UK
| | - Gibran Hemani
- MRC Integrative Epidemiology Unit, Population Health Sciences, Oakfield House, Oakfield Grove, University of Bristol, BS8 2BN, UK
| | - Luisa Zuccolo
- MRC Integrative Epidemiology Unit, Population Health Sciences, Oakfield House, Oakfield Grove, University of Bristol, BS8 2BN, UK
| | - Stephen Richmond
- Department of Applied Clinical Research and Public Health, School of Dentistry, Cardiff, UK
| | - Sarah J Lewis
- MRC Integrative Epidemiology Unit, Population Health Sciences, Oakfield House, Oakfield Grove, University of Bristol, BS8 2BN, UK; Bristol Dental School, University of Bristol, UK.
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21
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Abstract
BACKGROUND The alcohol industry recognizes children and pregnant women as population sub-groups vulnerable to the effects of alcohol marketing. Research indicates that heavy alcohol users are also potentially vulnerable to alcohol marketing. The purpose of the current study is to determine if sub-groups defined by psychological characteristics should be classified as potentially vulnerable as well. METHODS College students (n = 326) from two northeast schools were recruited to complete a survey containing questions on demographics, alcohol use, and psychological characteristics (alcohol expectancies, alcohol dependence, sensation seeking traits, and past delinquent behaviors). Additionally, after viewing each of five alcohol ads (4 television and 1 magazine), participants answered questions about their perceptions of alcohol consumption, responsible drinking, excessive drinking, and appeal of the ads. Main effects were assessed using hierarchical linear modeling, with adjustment for age, sex, race, ethnicity, and AUDIT score. RESULTS Alcohol expectancies (p < .001), particularly the social and physical pleasure and social expressiveness sub-scales, and sensation seeking traits (p = .002) were positively associated with alcohol ad appeal. Alcohol dependence symptoms, specifically impaired control and tolerance, were positively associated with perceptions of responsible drinking (p = .035), even though mean perceived number of drinks consumed met the definition of binge drinking. CONCLUSIONS Individuals with positive alcohol expectancies, sensation seeking traits, and alcohol dependence may be vulnerable to alcohol advertising and marketing. Because alcohol advertising often contains content that can serve as a cue or reinforce to drink, specific regulations may be needed to prevent alcohol-related harm from occurring in these sub-populations.
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Affiliation(s)
- Jonathan K Noel
- a Department of Health Science , Johnson & Wales University , Providence , RI , USA
| | - Ziming Xuan
- b Department of Community Health Sciences , Boston University School of Public Health , Boston , MA , USA
| | - Thomas F Babor
- c Department of Community Medicine and Health Care , University of Connecticut School of Medicine , Farmington , CT , USA
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22
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Beraldo L, Gil F, Ventriglio A, de Andrade AG, da Silva AG, Torales J, Gonçalves PD, Bhugra D, Castaldelli-Maia JM. Spirituality, Religiosity and Addiction Recovery: Current Perspectives. Curr Drug Res Rev 2019; 11:26-32. [PMID: 29895258 DOI: 10.2174/1874473711666180612075954] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 05/31/2018] [Accepted: 06/04/2018] [Indexed: 06/08/2023]
Abstract
Substance use disorders are an important public health problem with a multifactorial etiology and limited effective treatment options. Within this context, spirituality-based approaches may provide interesting and useful options in managing substance use disorders. This kind of intervention can have positive effects in alleviating some core symptoms associated with substance use, such as aggressiveness. Improvement in cessation rates for alcohol, cocaine and opioid use disorders have also been described in some clinical studies. However, spirituality may not play a beneficial role in some subgroups, such as among individuals with crack cocaine and cannabis use disorders. A widely available intervention for alcohol use disorders is Alcoholics Anonymous (AA), which can be seen as a spirituality-based intervention. Spirituality also seems to be especially beneficial for minorities such as Latinos, African-Americans and Native-Americans. Moreover, spiritual-based interventions are also helpful alternatives in many rural environments where conventional healthcare for substance use disorders may not be easily available. However, spiritual-based interventions may be considered as a possible adjunctive therapeutic option to conventional treatments. There is a need for prospective studies outside U.S., especially where spiritual-based approaches are available. It may be difficult to carry out randomized controlled trials because of the nature of the spiritual/ religious dimensions. However, prospective studies that evaluate mediation effect of spirituality and religiosity on recovery would be helpful. Qualitative studies combined with quantitative design offer excellent options to evaluate the recovery process, especially among special populations.
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Affiliation(s)
- Livia Beraldo
- Department of Psychiatry, Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Felipe Gil
- ABC Center for Mental Health Studies, Santo Andre, SP, Brazil
| | - Antonio Ventriglio
- Department of Clinical and Experimental Medicine University of Foggia, Foggia, Italy
| | - Arthur G de Andrade
- Department of Psychiatry, Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
- Department of Neuroscience, Medical School, Fundacao do ABC, Santo Andre, SP, Brazil
| | | | | | - Priscila D Gonçalves
- Department of Psychiatry, Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Dinesh Bhugra
- Institute of Psychiatry, King's College, London, United Kingdom
| | - João M Castaldelli-Maia
- Department of Psychiatry, Medical School, University of Sao Paulo, Sao Paulo, SP, Brazil
- ABC Center for Mental Health Studies, Santo Andre, SP, Brazil
- Department of Neuroscience, Medical School, Fundacao do ABC, Santo Andre, SP, Brazil
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23
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Abstract
Toxic chemicals, either from natural sources or man-made, are ubiquitous in our environment. Many of the synthetic chemicals make life more comfortable and therefore production continues to grow. Simultaneously with the increase in production, an increase in neurodevelopmental disorders has been observed. Some chemicals are not biodegradable or have a very long half-life time and, despite the fact that production of a number of those chemicals has been severely reduced, they are still ubiquitous in the environment. Fetal exposure to toxic chemicals is dependent on maternal exposure to those chemicals and the developing stage of the fetus. Human evidence from epidemiologic studies is described with regard to the effect of prenatal exposure to various groups of neurotoxicants (alcohol, particulate fine matter, metals, and endocrine disrupting chemicals) on neurobehavior development. Data indicate that prenatal exposure to alcohol, polycyclic aromatic hydrocarbons, lead, methylmercury (MeHg), organophosphate pesticides (OPPs), and polychlorinated biphenyl ethers (PBDEs) impair cognitive development, whereas exposure to alcohol, MeHg, organochlorine pesticides and OPPs, polychlorinated biphenyls, PBDEs, and bisphenol A increases the risk of developing either attention deficit/hyperactivity and/or autism spectrum disorders. Psychomotor development appears to be less affected. However, data are not conclusive, which may depend on the assessment of exposure and the exposure level, among other factors.
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Affiliation(s)
- Margot van de Bor
- Department of Environment and Health, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
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24
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Howlett H, Mackenzie S, Gray WK, Rankin J, Nixon L, Richardson A, Strehle EM, Brown NW. Assessing prevalence of alcohol consumption in early pregnancy: Self-report compared to blood biomarker analysis. Eur J Med Genet 2018; 61:531-538. [PMID: 29753916 DOI: 10.1016/j.ejmg.2018.05.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 04/19/2018] [Accepted: 05/08/2018] [Indexed: 12/18/2022]
Abstract
Providing appropriate antenatal and postnatal care for women who drink alcohol in pregnancy is only possible if those at risk can be identified. We aimed to compare the prevalence of alcohol consumption in the first trimester of pregnancy using self-report and blood biomarker analysis. Six-hundred routine blood samples from 2014, taken at the antenatal booking appointment, in the first trimester of pregnancy, were anonymously analysed for the presence of Carbohydrate Deficient Transferrin (CDT), a validated marker of chronic alcohol exposure (normalising 2-3 weeks from abstinence) and Gamma-glutamyltransferase (GGT), a liver enzyme elevated for up to 8 weeks after alcohol exposure. In a separate sample of women, from 2015, data taken during the antenatal visit, documenting women's self-reported alcohol consumption, were collected. The percentage of women who reported alcohol intake in the first trimester was 0.8%. This compared to 74.1% of women who reported consuming alcohol before pregnancy. CDT analysis revealed a prevalence rate of 1.4% and GGT a prevalence rate of 3.5% in the first trimester of pregnancy. Although those with elevated CDT generally had high levels of GGT, only one person was positive for CDT and GGT. Results from CDT analysis and self-report may underestimate prevalence for different reasons. GGT appeared to lack specificity, but it may have value in supporting findings from CDT analysis. Further studies using additional blood biomarkers, or a combination of blood biomarkers and self-report, may be beneficial in accurately detecting alcohol drinking history in pregnancy.
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Affiliation(s)
- Helen Howlett
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK.
| | - Shonag Mackenzie
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - William K Gray
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - Judith Rankin
- Institute of Health & Society, Newcastle University, Newcastle upon Tyne, UK
| | - Leanne Nixon
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - Anthony Richardson
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - Eugen-Matthias Strehle
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
| | - Nigel W Brown
- Northumbria Healthcare NHS Foundation Trust, North Tyneside General Hospital, North Shields, UK
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25
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Abstract
PURPOSE OF REVIEW This review summarizes the basic principles of Mendelian randomization (MR) and provides evidence for the causal effect of multiple modifiable factors on bone outcomes. RECENT FINDINGS Several studies using MR approach have provided support for the causal effect of obesity on bone mineral density (BMD). Strikingly, studies have failed to prove a causal association between elevated 25(OH) D concentrations and higher BMD in community-dwelling individuals. The MR approach has been successfully used to evaluate multiple factors related to bone mineral density variation and/or fracture risk. The MR approach avoids some of the classical observational study limitations and provides more robust causal evidence, ensuring bigger success of the clinical trials. The selection of interventions based on genetic evidence could have a substantial impact on clinical practice.
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Affiliation(s)
- Katerina Trajanoska
- Departments of Internal Medicine and Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands
| | - Fernando Rivadeneira
- Departments of Internal Medicine and Epidemiology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.
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26
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Xu W, Hawkey AB, Li H, Dai L, Brim HH, Frank JA, Luo J, Barron S, Chen G. Neonatal Ethanol Exposure Causes Behavioral Deficits in Young Mice. Alcohol Clin Exp Res 2018; 42:743-750. [PMID: 29336488 DOI: 10.1111/acer.13598] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 01/08/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Fetal ethanol (EtOH) exposure can damage the developing central nervous system and lead to cognitive and behavioral deficits, known as fetal alcohol spectrum disorders (FASD). EtOH exposure to mouse pups during early neonatal development was used as a model of EtOH exposure that overlaps the human third-trimester "brain growth spurt"-a model that has been widely used to study FASD in rats. METHODS C57BL/6 male and female mice were exposed to EtOH (4 g/kg/d) on postnatal days (PD) 4 to 10 by oral intubation. Intubated and nontreated controls were also included. Behavioral testing of the offspring, including open field, elevated plus maze, and Morris water maze, was performed on PD 20 to 45. RESULTS EtOH exposure during PD 4 to 10 resulted in hyperactivity and deficits in learning and memory in young mice with no apparent sex differences. CONCLUSIONS Based on these data, this neonatal intubation mouse model may be useful for future mechanistic and genetic studies of FASD and for screening of novel therapeutic agents.
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Affiliation(s)
- Wenhua Xu
- Department of Pharmacology & Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky.,Department of Neurology, Affiliated Provincial Hospital of Anhui Medical University, Hefei, China
| | - Andrew B Hawkey
- Department of Psychology, University of Kentucky College of Art & Sciences, Lexington, Kentucky
| | - Hui Li
- Department of Pharmacology & Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Lu Dai
- Department of Toxicology & Cancer Biology, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Howard H Brim
- Department of Pharmacology & Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Jacqueline A Frank
- Department of Pharmacology & Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Jia Luo
- Department of Pharmacology & Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky
| | - Susan Barron
- Department of Psychology, University of Kentucky College of Art & Sciences, Lexington, Kentucky
| | - Gang Chen
- Department of Pharmacology & Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky
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27
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Sharp GC, Arathimos R, Reese SE, Page CM, Felix J, Küpers LK, Rifas-Shiman SL, Liu C, Burrows K, Zhao S, Magnus MC, Duijts L, Corpeleijn E, DeMeo DL, Litonjua A, Baccarelli A, Hivert MF, Oken E, Snieder H, Jaddoe V, Nystad W, London SJ, Relton CL, Zuccolo L. Maternal alcohol consumption and offspring DNA methylation: findings from six general population-based birth cohorts. Epigenomics 2017; 10:27-42. [PMID: 29172695 PMCID: PMC5753623 DOI: 10.2217/epi-2017-0095] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Aim: Alcohol consumption during pregnancy is sometimes associated with adverse outcomes in offspring, potentially mediated by epigenetic modifications. We aimed to investigate genome-wide DNA methylation in cord blood of newborns exposed to alcohol in utero. Materials & methods: We meta-analyzed information from six population-based birth cohorts within the Pregnancy and Childhood Epigenetics consortium. Results: We found no strong evidence of association at either individual CpGs or across larger regions of the genome. Conclusion: Our findings suggest no association between maternal alcohol consumption and offspring cord blood DNA methylation. This is in stark contrast to the multiple strong associations previous studies have found for maternal smoking, which is similarly socially patterned. However, it is possible that a combination of a larger sample size, higher doses, different timings of exposure, exploration of a different tissue and a more global assessment of genomic DNA methylation might show evidence of association.
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Affiliation(s)
- Gemma C Sharp
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK.,School of Social & Community Medicine, University of Bristol, Bristol, BS8 2BN, UK.,School of Oral & Dental Sciences, University of Bristol, Bristol, UK
| | - Ryan Arathimos
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK.,School of Social & Community Medicine, University of Bristol, Bristol, BS8 2BN, UK
| | - Sarah E Reese
- Division of Intramural Research, Department of Health & Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Christian M Page
- Division for Mental & Physical Health, Department of Non-Communicable Diseases, Norwegian Institute of Public Health, Oslo, Norway.,Oslo Centre for Biostatistics & Epidemiology, Oslo University Hospital, Oslo, Norway
| | - Janine Felix
- The Generation R Study Group, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Leanne K Küpers
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK.,School of Social & Community Medicine, University of Bristol, Bristol, BS8 2BN, UK.,Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Sheryl L Rifas-Shiman
- Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Chunyu Liu
- The Framingham Heart Study, Framingham, MA, USA.,The Population Sciences Branch, Division of Intramural Research, National Heart, Lung, & Blood Institute, Bethesda, MD, USA.,Department of Biostatistics, Boston University School of Public Health, 715 Albany St, Boston, MA, USA
| | | | - Kimberley Burrows
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK.,School of Social & Community Medicine, University of Bristol, Bristol, BS8 2BN, UK
| | - Shanshan Zhao
- Division of Intramural Research, Department of Health & Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Maria C Magnus
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK.,School of Social & Community Medicine, University of Bristol, Bristol, BS8 2BN, UK.,Division for Mental & Physical Health, Department of Non-Communicable Diseases, Norwegian Institute of Public Health, Oslo, Norway
| | - Liesbeth Duijts
- The Generation R Study Group, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Division of Respiratory Medicine & Allergology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Eva Corpeleijn
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Dawn L DeMeo
- Channing Division of Network Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Augusto Litonjua
- Channing Division of Network Medicine, Brigham & Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrea Baccarelli
- Laboratory of Precision Environmental Biosciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Marie-France Hivert
- Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA, USA.,Diabetes Unit, Massachusetts General Hospital, Boston, MA, USA
| | - Emily Oken
- Department of Population Medicine, Harvard Medical School, Harvard Pilgrim Health Care Institute, Boston, MA, USA
| | - Harold Snieder
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Vincent Jaddoe
- The Generation R Study Group, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.,Department of Epidemiology, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Centre Rotterdam, Rotterdam, The Netherlands
| | - Wenche Nystad
- Division for Mental & Physical Health, Department of Non-Communicable Diseases, Norwegian Institute of Public Health, Oslo, Norway
| | - Stephanie J London
- Division of Intramural Research, Department of Health & Human Services, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, USA
| | - Caroline L Relton
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK.,School of Social & Community Medicine, University of Bristol, Bristol, BS8 2BN, UK
| | - Luisa Zuccolo
- MRC Integrative Epidemiology Unit, University of Bristol, Bristol, BS8 2BN, UK.,School of Social & Community Medicine, University of Bristol, Bristol, BS8 2BN, UK
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28
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Marjonen H, Kahila H, Kaminen-Ahola N. rs10732516 polymorphism at the IGF2/H19 locus associates with a genotype-specific trend in placental DNA methylation and head circumference of prenatally alcohol-exposed newborns. Hum Reprod Open 2017; 2017:hox014. [PMID: 30895230 PMCID: PMC6276671 DOI: 10.1093/hropen/hox014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/31/2017] [Accepted: 09/11/2017] [Indexed: 12/20/2022] Open
Abstract
STUDY QUESTION Does prenatal alcohol exposure (PAE) affect regulation of the insulin-like growth factor 2 (IGF2)/H19 locus in placenta and the growth-restricted phenotype of newborns? SUMMARY ANSWER PAE results in genotype-specific trends in both placental DNA methylation at the IGF2/H19 locus and head circumference (HC) of newborns. WHAT IS KNOWN ALREADY PAE can disturb development of the nervous system and lead to restricted growth of the head, even microcephaly. To clarify the etiology of alcohol-induced growth restriction, we focused on the imprinted IGF2/H19 locus known to be important for normal placental and embryonic growth. The expression of IGF2 and a negative growth controller H19 are regulated by the H19 imprinting control region (H19 ICR) with seven-binding sites for the methylation-sensitive zinc-finger regulatory protein CTCF. A single nucleotide polymorphism rs10732516 G/A in the sixth-binding site has shown to associate with genotype-specific DNA methylation profiles at the H19 ICR. STUDY DESIGN SIZE DURATION By grouping 39 alcohol-exposed and 100 control samples according to rs10732516 polymorphism we explored alcohol-induced, genotype-specific changes in DNA methylation at the H19 ICR and the promoter region of H19 (H19 differentially methylated region). Also, IGF2 and H19 mRNA expression level in placenta as well as the phenotypes of newborns were examined. PARTICIPANTS/MATERIALS SETTING METHODS We explored alcohol-induced, genotype-specific changes in placental DNA methylation by MassARRAY EpiTYPER and allele-specific changes by bisulphite sequencing. IGF2 and H19 expression in placenta were analyzed by quantitative PCR and the HC, birthweight and birth length of newborns were examined using national growth charts. MAIN RESULTS AND THE ROLE OF CHANCE We observed a consistent trend in genotype-specific changes in DNA methylation at H19 ICR in alcohol-exposed placentas. DNA methylation level in the normally highly methylated paternal allele of rs10732516 paternal A/maternal G genotype was decreased in alcohol-exposed placentas. In addition to decreased IGF2 mRNA expression in alcohol-exposed placentas of this specific genotype (P = 0.03), we observed significantly increased expression of H19 in relation to IGF2 when comparing all alcohol-exposed placentas to unexposed controls (P = 0.006). Furthermore, phenotypic examination showed a significant genotype-specific association between the alcohol exposure and HC of newborns (P = 0.001). LIMITATIONS REASONS FOR CAUTION Owing to the exceptional character of the alcohol-exposed human samples collected in this study, the sample size is restricted. An increased sample size and functional studies are needed to confirm these data and clarify the biological significance or causality of the observed associations. WIDER IMPLICATIONS OF THE FINDINGS Our results suggest that the rs10732516 polymorphism associates with the alcohol-induced alterations in DNA methylation profiles and head growth in a parent-of-origin manner. We also introduce a novel genotype-specific approach for exploring environmental effects on the IGF2/H19 locus and ultimately on embryonic growth. STUDY FUNDING/COMPETING INTERESTS This work was supported by the Academy of Finland (258304), The Finnish Foundation for Alcohol Studies, Finnish Cultural Foundation, Juho Vainio Foundation, Yrjö Jahnsson Foundation and Arvo and Lea Ylppö Foundation. No competing interests are declared.
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Affiliation(s)
- Heidi Marjonen
- Department of Medical and Clinical Genetics, Medicum, University of Helsinki, Helsinki, Finland
| | - Hanna Kahila
- Department of Obstetrics and Gynecology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Nina Kaminen-Ahola
- Department of Medical and Clinical Genetics, Medicum, University of Helsinki, Helsinki, Finland
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29
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Halliday JL, Muggli E, Lewis S, Elliott EJ, Amor DJ, O'Leary C, Donath S, Forster D, Nagle C, Craig JM, Anderson PJ. Alcohol consumption in a general antenatal population and child neurodevelopment at 2 years. J Epidemiol Community Health 2017; 71:990-998. [PMID: 28839077 DOI: 10.1136/jech-2017-209165] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 07/05/2017] [Accepted: 08/09/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Prenatal alcohol exposure (PAE) is a community health problem with up to 50% of pregnant women drinking alcohol. The relationship between low or sporadic binge PAE and adverse child outcomes is not clear. This study examines the association between PAE in the general antenatal population and child neurodevelopment at 2 years, accounting for relevant contributing factors. METHODS This prospective population-based cohort recruited 1570 pregnant women, providing sociodemographic, psychological and lifestyle information and alcohol use for five time periods. PAE categories were 'low', 'moderate/high', 'binge', in trimester 1 or throughout pregnancy. Measures of cognitive, language and motor development (Bayley Scales of Infant and Toddler Development) were available for 554 children, while measures of sensory processing (Infant/Toddler Sensory Profile) and social-emotional development (Brief Infant Toddler Social Emotional Assessment) were available for 948. RESULTS A positive association in univariate analysis with low-level PAE throughout pregnancy and cognition (β=4.1, 95% CI -0.02 to 8.22, p=0.05) was attenuated by adjusting for environmental/social deprivation risk factors (β=3.06 (-1.19 to 7.30), p=0.16). Early binge drinking, plus continued PAE at lower levels, was associated with the child being more likely to score low in sensation avoidance (adjusted OR 1.88 (1.03 to 3.41), p=0.04). CONCLUSION Early binge exposure, followed by lower-level PAE, demonstrated an increase in sensation-avoiding behaviour. There were, however, no significant associations between PAE and neurodevelopment following adjustment for important confounders and modifiers. Follow-up is paramount to investigate subtle or later onset problems.
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Affiliation(s)
- Jane L Halliday
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Evelyne Muggli
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Sharon Lewis
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Elizabeth J Elliott
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Paediatrics and Child Health, Children's Hospital Westmead, The University of Sydney, Sydney, New South Wales, Australia
| | - David J Amor
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Colleen O'Leary
- Telethon Kids Institute, Perth, Western Australia, Australia
| | - Susan Donath
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Della Forster
- School of Nursing and Midwifery, Judith Lumley Centre, SHE College, La Trobe University, Melbourne, Victoria, Australia.,Midwifery and Maternity Services Research Unit, The Royal Women's Hospital, Parkville, Victoria, Australia
| | - Cate Nagle
- Centre for Quality and Patient Safety Research, Deakin University, Geelong, Victoria, Australia.,Women's and Children's Division, Western Health, St Albans, Victoria, Australia
| | - Jeffrey M Craig
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia.,Department of Paediatrics, The University of Melbourne, Melbourne, Victoria, Australia
| | - Peter J Anderson
- Public Health Genetics, Murdoch Children's Research Institute, Parkville, Victoria, Australia
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30
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Muggli E, Matthews H, Penington A, Claes P, O’Leary C, Forster D, Donath S, Anderson PJ, Lewis S, Nagle C, Craig JM, White SM, Elliott EJ, Halliday J. Association Between Prenatal Alcohol Exposure and Craniofacial Shape of Children at 12 Months of Age. JAMA Pediatr 2017; 171:771-780. [PMID: 28586842 PMCID: PMC6583660 DOI: 10.1001/jamapediatrics.2017.0778] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
IMPORTANCE Children who receive a diagnosis of fetal alcohol spectrum disorder may have a characteristic facial appearance in addition to neurodevelopmental impairment. It is not well understood whether there is a gradient of facial characteristics of children who did not receive a diagnosis of fetal alcohol spectrum disorder but who were exposed to a range of common drinking patterns during pregnancy. OBJECTIVE To examine the association between dose, frequency, and timing of prenatal alcohol exposure and craniofacial phenotype in 12-month-old children. DESIGN, SETTING, AND PARTICIPANTS A prospective cohort study was performed from January 1, 2011, to December 30, 2014, among mothers recruited in the first trimester of pregnancy from low-risk, public maternity clinics in metropolitan Melbourne, Australia. A total of 415 white children were included in this analysis of 3-dimensional craniofacial images taken at 12 months of age. Analysis was performed with objective, holistic craniofacial phenotyping using dense surface models of the face and head. Partial least square regression models included covariates known to affect craniofacial shape. EXPOSURES Low, moderate to high, or binge-level alcohol exposure in the first trimester or throughout pregnancy. MAIN OUTCOMES AND MEASURES Anatomical differences in global and regional craniofacial shape between children of women who abstained from alcohol during pregnancy and children with varying levels of prenatal alcohol exposure. RESULTS Of the 415 children in the study (195 girls and 220 boys; mean [SD] age, 363.0 [8.3] days), a consistent association between craniofacial shape and prenatal alcohol exposure was observed at almost any level regardless of whether exposure occurred only in the first trimester or throughout pregnancy. Regions of difference were concentrated around the midface, nose, lips, and eyes. Directional visualization showed that these differences corresponded to general recession of the midface and superior displacement of the nose, especially the tip of the nose, indicating shortening of the nose and upturning of the nose tip. Differences were most pronounced between groups with no exposure and groups with low exposure in the first trimester (forehead), moderate to high exposure in the first trimester (eyes, midface, chin, and parietal region), and binge-level exposure in the first trimester (chin). CONCLUSIONS AND RELEVANCE Prenatal alcohol exposure, even at low levels, can influence craniofacial development. Although the clinical significance of these findings is yet to be determined, they support the conclusion that for women who are or may become pregnant, avoiding alcohol is the safest option.
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Affiliation(s)
- Evelyne Muggli
- Public Health Genetics, Murdoch Childrens Research Institute, Parkville, Victoria, Australia,Department of Paediatrics, University of Melbourne, Victoria, Australia
| | - Harold Matthews
- Department of Paediatrics, University of Melbourne, Victoria, Australia,Plastic and Maxillofacial Surgery, Royal Children’s Hospital, Melbourne, Victoria, Australia,Plastic Surgery, Murdoch Childrens Research Institute, Parkville, Victoria, Australia
| | - Anthony Penington
- Department of Paediatrics, University of Melbourne, Victoria, Australia,Plastic and Maxillofacial Surgery, Royal Children’s Hospital, Melbourne, Victoria, Australia,Plastic Surgery, Murdoch Childrens Research Institute, Parkville, Victoria, Australia
| | - Peter Claes
- Plastic Surgery, Murdoch Childrens Research Institute, Parkville, Victoria, Australia,Department of Electrical Engineering, Processing Speech and Images, Katholieke Universiteit Leuven, Leuven, Belgium,Medical Imaging Research Center, Universitaire Ziekenhuizen Leuven, Leuven, Belgium
| | - Colleen O’Leary
- Telethon Kids Institute, Perth, Western Australia, Australia
| | - Della Forster
- Judith Lumley Centre, School of Nursing and Midwifery, College of Science, Health and Engineering, La Trobe University, Melbourne, Victoria, Australia,Midwifery and Maternity Services Research Unit, The Royal Women’s Hospital, Parkville, Victoria, Australia
| | - Susan Donath
- Department of Paediatrics, University of Melbourne, Victoria, Australia,Clinical Epidemiology and Biostatistics Unit, Murdoch Childrens Research Institute, Parkville, Victoria, Australia
| | - Peter J. Anderson
- Department of Paediatrics, University of Melbourne, Victoria, Australia,Monash Institute of Cognitive and Clinical Neurosciences, Monash University, Victoria, Australia,Clinical Sciences, Murdoch Childrens Research Institute, Parkville, Victoria, Australia
| | - Sharon Lewis
- Public Health Genetics, Murdoch Childrens Research Institute, Parkville, Victoria, Australia,Department of Paediatrics, University of Melbourne, Victoria, Australia
| | - Cate Nagle
- Centre for Quality and Patient Safety Research, Deakin University, Geelong, Victoria, Australia,Women’s and Children’s Division, Western Health, St Albans, Victoria, Australia
| | - Jeffrey M. Craig
- Department of Paediatrics, University of Melbourne, Victoria, Australia,Environmental and Genetic Epidemiology, Murdoch Childrens Research Institute, Parkville, Victoria, Australia
| | - Susan M. White
- Department of Paediatrics, University of Melbourne, Victoria, Australia,Victorian Clinical Genetics Services, Murdoch Childrens Research Institute, Parkville, Victoria, Australia
| | - Elizabeth J. Elliott
- Paediatrics and Child Health, Children’s Hospital Westmead, University of Sydney, Sydney, New South Wales, Australia
| | - Jane Halliday
- Public Health Genetics, Murdoch Childrens Research Institute, Parkville, Victoria, Australia,Department of Paediatrics, University of Melbourne, Victoria, Australia
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31
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Dumas A, Toutain S, Simmat-Durand L. Alcohol Use During Pregnancy or Breastfeeding: A National Survey in France. J Womens Health (Larchmt) 2017; 26:798-805. [DOI: 10.1089/jwh.2016.6130] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Affiliation(s)
- Agnès Dumas
- Centre for Research in Epidemiology and Population Health (CESP), INSERM U1018, Villejuif, France
- Institut Gustave Roussy, Villejuif, France
- Université Paris-Sud, Orsay, France
| | - Stéphanie Toutain
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Centre de Recherche Médecine, Sciences, Santé, Santé Mentale et Société (CERMES3), UMR CNRS 8211, INSERM U988, EHESS, Paris, France
| | - Laurence Simmat-Durand
- Université Paris Descartes, Sorbonne Paris Cité, Paris, France
- Centre de Recherche Médecine, Sciences, Santé, Santé Mentale et Société (CERMES3), UMR CNRS 8211, INSERM U988, EHESS, Paris, France
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32
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López MB, Lichtenberger A, Conde K, Cremonte M. Psychometric Properties of Brief Screening Tests for Alcohol Use Disorders during Pregnancy in Argentina. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRÍCIA 2017; 39:322-329. [PMID: 28609804 PMCID: PMC10416172 DOI: 10.1055/s-0037-1603744] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 03/15/2017] [Indexed: 10/19/2022] Open
Abstract
Background Considering the physical, mental and behavioral problems related to fetal alcohol exposure, prenatal clinical guides suggest a brief evaluation of alcohol consumption during pregnancy to detect alcohol intake and to adjust interventions, if required. Even if any alcohol use should be considered risky during pregnancy, identifying women with alcohol use disorders is important because they could need a more specific intervention than simple advice to abstain. Most screening tests have been developed and validated in male populations and focused on the long-term consequences of heavy alcohol use, so they might be inappropriate to assess consumption in pregnant women. Objective To analyze the internal reliability and validity of the alcohol screening instruments Alcohol Use Disorders Identification Test (AUDIT), Alcohol Use Disorders Identification Test - Consumption (AUDIT-C), Tolerance, Worried, Eye-Opener, Amnesia and Cut-Down (TWEAK), Rapid Alcohol Problems Screen - Quantity Frequency (RAPS-QF) and Tolerance, Annoyed, Cut-Down and Eye-Opener (T-ACE) to identify alcohol use disorders in pregnant women. Methods A total of 641 puerperal women were personally interviewed during the 48 hours after delivery. The receiver operating characteristics (ROC) curves and the sensitivity and specificity of each instrument using different cut-off points were analyzed. Results All instruments showed areas under the ROC curves above 0.80. Larger areas were found for the TWEAK and the AUDIT. The TWEAK, the T-ACE and the AUDIT-C showed higher sensitivity, while the AUDIT and the RAPS-QF showed higher specificity. Reliability (internal consistency) was low for all instruments, improving when optimal cut-off points were used, especially for the AUDIT, the AUDIT-C and the RAPS-QF. Conclusions In other cultural contexts, studies have concluded that T-ACE and TWEAK are the best instruments to assess pregnant women. In contrast, our results evidenced the low reliability of those instruments and a better performance of the AUDIT in this population.
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Affiliation(s)
- Mariana Beatriz López
- Centro Interdisciplinario de Investigaciones en Psicología Matemática y Experimental (Interdisciplinary Center of Mathematics and Experimental Psychology Research), Consejo Nacional de Investigaciones Científicas y Técnicas (National Council of Scientific and Technological Research, CONICET), Buenos Aires, Argentina
| | - Aldana Lichtenberger
- Instituto de Psicología Básica, Aplicada y Tecnología (Institute of Basic Applied Psychology and Technology); Universidad Nacional de Mar del Plata; CONICET, Buenos Aires, Argentina
| | - Karina Conde
- Instituto de Psicología Básica, Aplicada y Tecnología (Institute of Basic Applied Psychology and Technology); Universidad Nacional de Mar del Plata; CONICET, Buenos Aires, Argentina
| | - Mariana Cremonte
- Instituto de Psicología Básica, Aplicada y Tecnología (Institute of Basic Applied Psychology and Technology); Universidad Nacional de Mar del Plata; CONICET, Buenos Aires, Argentina
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33
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Mahedy L, Hammerton G, Teyhan A, Edwards AC, Kendler KS, Moore SC, Hickman M, Macleod J, Heron J. Parental alcohol use and risk of behavioral and emotional problems in offspring. PLoS One 2017; 12:e0178862. [PMID: 28586358 PMCID: PMC5460848 DOI: 10.1371/journal.pone.0178862] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Accepted: 05/19/2017] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The majority of studies that have examined parental alcohol use and offspring outcomes have either focused on exposure in the antenatal period or from clinical populations. This study sought to examine proximal and distal associations between parental alcohol use and offspring conduct problems and depressive symptoms in a population birth cohort. METHODS We used prospective data from a large UK based population cohort (ALSPAC) to investigate the association between parental alcohol use, measured in units, (assessed at ages 4 and 12 years) with childhood conduct trajectories, (assessed on six occasions from 4 to 13.5 years, n = 6,927), and adolescent depressive symptoms (assessed on four occasions from ~13 to ~18 years, n = 5,539). Heavy drinking was defined as ≥21 units per week in mothers and partners who drank 4+ units daily. RESULTS We found little evidence to support a dose response association between parental alcohol use and offspring outcomes. For example, we found insufficient evidence to support an association between maternal alcohol use at age 4 years and childhood conduct problems (childhood limited: OR = 1.00, 95% CI = .99, 1.01; adolescent onset: OR = 0.99, 95% CI = .98, 1.00; and early-onset persistent: OR = 0.99, 95% CI = .98, 1.00) per 1-unit change in maternal alcohol use compared to those with low levels of conduct problems. We also found insufficient evidence to support an association between maternal alcohol use at age 4 years and adolescent depressive symptoms (intercept: b = .001, 95% CI = -.01, .01, and slope: b = .003, 95% CI = -.03, .03) per 1-unit change in maternal alcohol use. Results remained consistent across amount of alcohol consumed (i.e., number of alcohol units or heavy alcohol use), parent (maternal self-reports or maternal reports of partner's alcohol use), and timing of alcohol use (assessed at age 4 or age 12 years). CONCLUSIONS There is no support for an association between parental alcohol use during childhood and conduct and emotional problems during childhood or adolescence.
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Affiliation(s)
- Liam Mahedy
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Gemma Hammerton
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Alison Teyhan
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Alexis C. Edwards
- Department of Psychiatry and School of Medicine, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Kenneth S. Kendler
- Department of Psychiatry and School of Medicine, Virginia Institute for Psychiatric and Behavioral Genetics, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Simon C. Moore
- School of Dentistry, College of Biomedical and Life Science, Cardiff University, Cardiff, United Kingdom
| | - Matthew Hickman
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - John Macleod
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
| | - Jon Heron
- School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom
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Lawlor D, Richmond R, Warrington N, McMahon G, Davey Smith G, Bowden J, Evans DM. Using Mendelian randomization to determine causal effects of maternal pregnancy (intrauterine) exposures on offspring outcomes: Sources of bias and methods for assessing them. Wellcome Open Res 2017; 2:11. [PMID: 28405635 PMCID: PMC5386135 DOI: 10.12688/wellcomeopenres.10567.1] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2017] [Indexed: 01/10/2023] Open
Abstract
Mendelian randomization (MR), the use of genetic variants as instrumental variables (IVs) to test causal effects, is increasingly used in aetiological epidemiology. Few of the methodological developments in MR have considered the specific situation of using genetic IVs to test the causal effect of exposures in pregnant women on postnatal offspring outcomes. In this paper, we describe specific ways in which the IV assumptions might be violated when MR is used to test such intrauterine effects. We highlight the importance of considering the extent to which there is overlap between genetic variants in offspring that influence their outcome with genetic variants used as IVs in their mothers. Where there is overlap, and particularly if it generates a strong association of maternal genetic IVs with offspring outcome via the offspring genotype, the exclusion restriction assumption of IV analyses will be violated. We recommend a set of analyses that ought to be considered when MR is used to address research questions concerned with intrauterine effects on post-natal offspring outcomes, and provide details of how these can be undertaken and interpreted. These additional analyses include the use of genetic data from offspring and fathers, examining associations using maternal non-transmitted alleles, and using simulated data in sensitivity analyses (for which we provide code). We explore the extent to which new methods that have been developed for exploring violation of the exclusion restriction assumption in the two-sample setting (MR-Egger and median based methods) might be used when exploring intrauterine effects in one-sample MR. We provide a list of recommendations that researchers should use when applying MR to test the effects of intrauterine exposures on postnatal offspring outcomes and use an illustrative example with real data to demonstrate how our recommendations can be applied and subsequent results appropriately interpreted.
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Affiliation(s)
- Deborah Lawlor
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Rebecca Richmond
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Nicole Warrington
- University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
- School of Women’s and Infants’ Health, The University of Western Australia, Perth, Australia
| | - George McMahon
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - George Davey Smith
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Jack Bowden
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - David M Evans
- Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
- University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
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Gregson CL, Zuccolo L. Letter regarding 'Does a bit of alcohol turn off inflammation and improve health?'. Age Ageing 2017; 46:158-159. [PMID: 28181656 DOI: 10.1093/ageing/afw236] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Celia L Gregson
- Consultant Senior Lecturer and Honorary Consultant Geriatrician, School of Clinical Sciences, University of Bristol, Bristol, UK
| | - Luisa Zuccolo
- Senior Research Fellow, MRC Integrative Epidemiology Unit, University of Bristol, Bristol, UK
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Babor TF, Robaina K, Noel JK, Ritson EB. Vulnerability to alcohol-related problems: a policy brief with implications for the regulation of alcohol marketing. Addiction 2017; 112 Suppl 1:94-101. [PMID: 27922203 DOI: 10.1111/add.13626] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
BACKGROUND AND AIMS The concern that alcohol advertising can have detrimental effects on vulnerable viewers has prompted the development of codes of responsible advertising practices. This paper evaluates critically the concept of vulnerability as it applies to (1) susceptibility to alcohol-related harm and (2) susceptibility to the effects of marketing, and describes its implications for the regulation of alcohol marketing. METHOD We describe the findings of key published studies, review papers and expert reports to determine whether these two types of vulnerability apply to population groups defined by (1) age and developmental history; (2) personality characteristics; (3) family history of alcoholism; (4) female sex and pregnancy risk; and (5) history of alcohol dependence and recovery status. RESULTS Developmental theory and research suggest that groups defined by younger age, incomplete neurocognitive development and a history of alcohol dependence may be particularly vulnerable because of the disproportionate harm they experience from alcohol and their increased susceptibility to alcohol marketing. Children may be more susceptible to media imagery because they do not have the ability to compensate for biases in advertising portrayals and glamorized media imagery. CONCLUSION Young people and people with a history of alcohol dependence appear to be especially vulnerable to alcohol marketing, warranting the development of new content and exposure guidelines focused on protecting those groups to improve current self-regulation codes promoted by the alcohol industry. If adequate protections cannot be implemented through this mechanism, statutory regulations should be considered.
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Affiliation(s)
- Thomas F Babor
- Department of Community Medicine and Health Care, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
| | - Katherine Robaina
- Department of Community Medicine and Health Care, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
| | - Jonathan K Noel
- Department of Community Medicine and Health Care, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
| | - E Bruce Ritson
- Department of Community Medicine and Health Care, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
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Zuccolo L, DeRoo LA, Wills AK, Davey Smith G, Suren P, Roth C, Stoltenberg C, Magnus P. Pre-conception and prenatal alcohol exposure from mothers and fathers drinking and head circumference: results from the Norwegian Mother-Child Study (MoBa). Sci Rep 2016; 7:39535. [PMID: 28008975 PMCID: PMC5180191 DOI: 10.1038/srep39535] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 11/24/2016] [Indexed: 11/23/2022] Open
Abstract
Although microcephaly is a feature of Fetal Alcohol Syndrome, it is currently unknown whether low-to-moderate prenatal alcohol exposure affects head circumference. Small magnitude associations reported in observational studies are likely to be misleading due to confounding and misclassification biases. Alternative analytical approaches such as the use of family negative controls (e.g. comparing the effects of maternal and paternal exposure) could help disentangle causal effects. We investigated the association of maternal and paternal alcohol drinking before and early in pregnancy with infant head circumference, using data from 68,244 mother-father-offspring trios from the Norwegian Mother and Child Cohort Study (MoBa) (1999-2009). In analyses adjusted for potential confounders, we found no consistent pattern of association between maternal or paternal alcohol intake before or during pregnancy and offspring head circumference modelled as a continuous outcome. However, we found higher odds of microcephaly at birth for higher paternal, but not maternal, alcohol consumption before pregnancy, and similar but weaker effect estimates for first trimester drinking. Associations with paternal drinking before pregnancy were unexpected and should be regarded as hypothesis generating, until independently replicated, although potentially important given the absence of guidelines on safe drinking levels for men in couples trying for a pregnancy.
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Affiliation(s)
- Luisa Zuccolo
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Lisa A. DeRoo
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Andrew K. Wills
- School of Clinical Sciences & School of Oral and Dental Sciences, University of Bristol, Bristol, UK
| | - George Davey Smith
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Pål Suren
- Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
| | - Christine Roth
- Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
- Department of Epidemiology, Columbia University, New York, USA
- Nic Waals Institute, Lovisenberg Hospital, Oslo, Norway
| | | | - Per Magnus
- Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
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Lee E, Sutton RM, Hartley BL. From scientific article to press release to media coverage: advocating alcohol abstinence and democratising risk in a story about alcohol and pregnancy. HEALTH RISK & SOCIETY 2016; 18:247-269. [PMID: 28367068 PMCID: PMC5351785 DOI: 10.1080/13698575.2016.1229758] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 08/05/2016] [Indexed: 10/31/2022]
Abstract
In this article, we follow the approach taken by Riesch and Spiegalhalter in "Careless pork costs lives': Risk stories from science to press release to media' published in this journal, and offer an assessment of one example of a 'risk story'. Using content and thematic qualitative analysis, we consider how the findings of an article 'Fetal Alcohol Exposure and IQ at Age 8: Evidence from a Population-Based Birth-Cohort Study' were framed in the article itself, the associated press release, and the subsequent extensive media coverage. We contextualise this consideration of a risk story by discussing a body of work that critically engages with the development and global proliferation of efforts to advocate for alcohol abstinence to pregnant (and pre-pregnant) women. This work considers the 'democratisation' of risk, a term used to draw attention to the expansion of the definition of the problem of drinking in pregnancy to include any drinking and all women. We show here how this risk story contributed a new dimension to the democratisation of risk through claims that were made about uncertainty and certainty. A central argument we make concerns the contribution of the researchers themselves (not just lobby groups or journalists) to this outcome. We conclude that the democratisation of risk was advanced in this case not simply through journalists exaggerating and misrepresenting research findings, but that communication to the press and the initial interpretation of findings played their part. We suggest that this risk story raises concerns about the accuracy of reporting of research findings, and about the communication of unwarrantedly worrying messages to pregnant women about drinking alcohol.
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Affiliation(s)
- Ellie Lee
- School of Social Policy, Sociology and Social Research, University of Kent , Canterbury , UK
| | | | - Bonny L Hartley
- Department of Psychology, Social Work and Counselling, University of Greenwich , London , UK
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McQuire C, Paranjothy S, Hurt L, Mann M, Farewell D, Kemp A. Objective Measures of Prenatal Alcohol Exposure: A Systematic Review. Pediatrics 2016; 138:peds.2016-0517. [PMID: 27577579 DOI: 10.1542/peds.2016-0517] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/15/2016] [Indexed: 11/24/2022] Open
Abstract
CONTEXT Objective measurement of prenatal alcohol exposure (PAE) is essential for identifying children at risk for adverse outcomes, including fetal alcohol spectrum disorders. Biomarkers have been advocated for use in universal screening programs, but their validity has not been comprehensively evaluated. OBJECTIVE To systematically review the validity of objective measures of PAE. DATA SOURCES Thirteen electronic databases and supplementary sources were searched for studies published between January 1990 and October 2015. STUDY SELECTION Eligible studies were those that evaluated the diagnostic accuracy of objective measures of PAE. DATA EXTRACTION Three reviewers independently verified study inclusion, quality assessments, and extracted data. RESULTS Twelve studies met inclusion criteria. Test performance varied widely across studies of maternal blood (4 studies; sensitivity 0%-100%, specificity 79%-100%), maternal hair (2 studies; sensitivity 19%-87%, specificity 56%-86%) maternal urine (2 studies; sensitivity 5%-15%, specificity 97%-100%), and biomarker test batteries (3 studies; sensitivity 22%-50%, specificity 56%-97%). Tests of the total concentration of 4 fatty acid ethyl esters (in meconium: 2 studies; in placenta: 1 study) demonstrated high sensitivity (82%-100%); however, specificity was variable (13%-98%). LIMITATIONS Risk of bias was high due to self-report reference standards and selective outcome reporting. CONCLUSIONS Current evidence is insufficient to support the use of objective measures of prenatal alcohol exposure in practice. Biomarkers in meconium and placenta tissue may be the most promising candidates for further large-scale population-based research.
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Affiliation(s)
| | | | | | - Mala Mann
- Specialist Unit for Review Evidence, Cardiff University, Cardiff, United Kingdom
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Abstract
Fetal alcohol-spectrum disorders (FASDs) are a collection of physical and neurobehavioral disabilities caused by prenatal exposure to alcohol. To prevent or mitigate the costly effects of FASD, we must identify mothers at risk for having a child with FASD, so that we may reach them with interventions. Identifying mothers at risk is beneficial at all time points, whether prior to pregnancy, during pregnancy, or following the birth of the child. In this review, three approaches to identifying mothers at risk are explored: using characteristics of the mother and her pregnancy, using laboratory biomarkers, and using self-report assessment of alcohol-consumption risk. At present, all approaches have serious limitations. Research is needed to improve the sensitivity and specificity of biomarkers and screening instruments, and to link them to outcomes as opposed to exposure. Universal self-report screening of all women of childbearing potential should ideally be incorporated into routine obstetric and gynecologic care, followed by brief interventions, including education and personalized feedback for all who consume alcohol, and referral to treatment as indicated. Effective biomarkers or combinations of biomarkers may be used during pregnancy and at birth to determine maternal and fetal alcohol exposure. The combination of self-report and biomarker screening may help identify a greater proportion of women at risk for having a child with FASD, allowing them to access information and treatment, and empowering them to make decisions that benefit their children.
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Affiliation(s)
- Annika C Montag
- Department of Pediatrics, Division of Dysmorphology and Teratology, University of California San Diego, San Diego, CA, USA
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41
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Takeuchi H, Kawashima R. Neural Mechanisms and Children’s Intellectual Development. Neuroscientist 2016; 22:618-631. [DOI: 10.1177/1073858415610294] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Human psychometric intelligence can predict a number of important social and academic outcomes. Substantial parts of the variances of human intelligence and the brain volume supporting those abilities are explained by environmental factors, and during childhood, human brains have higher plasticity and also 60% of variance of intelligence that is explained by environmental factors. Here, we review the representative environmental factors known to affect human intellectual development during each developmental stage. We describe what is (and what is not) being investigated to determine how these factors affect human brain development through analyses of volumetrical and cortical structures. In conclusion, environmental factors that affect children’s intellectual development lead to three patterns of brain structural change. The first is global change in the brain structure, observed more often in the earlier phase of development. The second is structural changes concentrated in the medial prefrontal and adjacent areas and medial temporal areas, which are likely to be induced by stress in many cases. The third is sporadic region-specific change, likely to be primarily caused by use-dependent plasticity of the areas that is often observed in the later phase of development. These changes may underlie the alterations in children’s intellectual development that is induced by environmental factors.
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Affiliation(s)
- Hikaru Takeuchi
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Ryuta Kawashima
- Division of Developmental Cognitive Neuroscience, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Smart Ageing International Research Center, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Department of Functional Brain Imaging, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
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Kesmodel US. Risks and guidelines for the consumption of alcohol during pregnancy. World J Obstet Gynecol 2016; 5:162-174. [DOI: 10.5317/wjog.v5.i2.162] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 11/13/2015] [Accepted: 01/22/2016] [Indexed: 02/05/2023] Open
Abstract
Daily average intake of alcohol during pregnancy has consistently been associated with short term adverse outcomes such as miscarriage, preterm birth and intrauterine growth restriction, a large variety of malformations, as well as long term adverse outcomes such as foetal alcohol syndrome, mental retardation and general impairment of cognitive functions including intelligence, attention, learning abilities as well as social and behavioural functions. Weekly average consumption and alcohol binge drinking (usually defined as ≥ 5 drinks on a single occasion) independently of high daily average intake has not been consistently associated with short and long term adverse outcomes. Health authorities in most countries recommend that pregnant women completely abstain from alcohol. Even so, many health professionals including doctors, midwives and nurses do not provide information to pregnant women in accordance with the official recommendations, although a large proportion of women of child bearing age and pregnant women drink alcohol, especially before recognition of pregnancy. The discrepancy between guidelines and the information practice of health personnel is likely to continue to exist because guidelines of abstinence are not clearly evidence-based and not in line with current focus on autonomy and informed choice for patients, and because guidelines do not consider the everyday clinical communication situation.
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Murray J, Burgess S, Zuccolo L, Hickman M, Gray R, Lewis SJ. Moderate alcohol drinking in pregnancy increases risk for children's persistent conduct problems: causal effects in a Mendelian randomisation study. J Child Psychol Psychiatry 2016; 57:575-84. [PMID: 26588883 PMCID: PMC4855628 DOI: 10.1111/jcpp.12486] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/12/2015] [Indexed: 12/13/2022]
Abstract
BACKGROUND Heavy alcohol use during pregnancy can cause considerable developmental problems for children, but effects of light-moderate drinking are uncertain. This study examined possible effects of moderate drinking in pregnancy on children's conduct problems using a Mendelian randomisation design to improve causal inference. METHODS A prospective cohort study (ALSPAC) followed children from their mother's pregnancy to age 13 years. Analyses were based on 3,544 children whose mothers self-reported either not drinking alcohol during pregnancy or drinking up to six units per week without binge drinking. Children's conduct problem trajectories were classified as low risk, childhood-limited, adolescence-onset or early-onset-persistent, using six repeated measures of the Strengths and Difficulties Questionnaire between ages 4-13 years. Variants of alcohol-metabolising genes in children were used to create an instrumental variable for Mendelian randomisation analysis. RESULTS Children's genotype scores were associated with early-onset-persistent conduct problems (OR = 1.29, 95% CI = 1.04-1.60, p = .020) if mothers drank moderately in pregnancy, but not if mothers abstained from drinking (OR = 0.94, CI = 0.72-1.25, p = .688). Children's genotype scores did not predict childhood-limited or adolescence-onset conduct problems. CONCLUSIONS This quasi-experimental study suggests that moderate alcohol drinking in pregnancy contributes to increased risk for children's early-onset-persistent conduct problems, but not childhood-limited or adolescence-onset conduct problems.
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Affiliation(s)
- Joseph Murray
- Department of PsychiatryUniversity of CambridgeCambridgeUK
| | - Stephen Burgess
- Department of Public Health and Primary CareUniversity of CambridgeCambridgeUK
| | - Luisa Zuccolo
- School of Social and Community MedicineUniversity of BristolBristolUK,MRC Integrative Epidemiology UnitUniversity of BristolBristolUK
| | - Matthew Hickman
- School of Social and Community MedicineUniversity of BristolBristolUK
| | - Ron Gray
- National Perinatal Epidemiology UnitNuffield Department of Population HealthUniversity of OxfordOxfordUK
| | - Sarah J. Lewis
- School of Social and Community MedicineUniversity of BristolBristolUK
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Ruiz JDC, Quackenboss JJ, Tulve NS. Contributions of a Child's Built, Natural, and Social Environments to Their General Cognitive Ability: A Systematic Scoping Review. PLoS One 2016; 11:e0147741. [PMID: 26840411 PMCID: PMC4739499 DOI: 10.1371/journal.pone.0147741] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 12/09/2015] [Indexed: 12/24/2022] Open
Abstract
The etiology of a child’s cognitive ability is complex, with research suggesting that it is not attributed to a single determinant or even a defined period of exposure. Rather, cognitive development is the product of cumulative interactions with the environment, both negative and positive, over the life course. The aim of this systematic scoping review was to collate evidence associated with children’s cognitive health, including inherent factors as well as chemical and non-chemical stressors from the built, natural, and social environments. Three databases were used to identify recent epidemiological studies (2003–2013) that examined exposure factors associated with general cognitive ability in children. Over 100 factors were evaluated from 258 eligible studies. We found that recent literature mainly assessed the hypothesized negative effects of either inherent factors or chemical exposures present in the physical environment. Prenatal growth, sleep health, lead and water pollutants showed consistent negative effects. Of the few studies that examined social stressors, results consistently showed cognitive development to be influenced by both positive and negative social interactions at home, in school or the community. Among behavioral factors related to diet and lifestyle choices of the mother, breastfeeding was the most studied, showing consistent positive associations with cognitive ability. There were mostly inconsistent results for both chemical and non-chemical stressors. The majority of studies utilized traditional exposure assessments, evaluating chemical and non-chemical stressors separately. Collective evidence from a limited number of studies revealed that cumulative exposure assessment that incorporates multiple chemical and non-chemical stressors over the life course may unravel the variability in effect on cognitive development and help explain the inconsistencies across studies. Future research examining the interactions of multiple stressors within a child’s total environment, depicting a more real-world exposure, will aid in understanding the cumulative effects associated with a child’s ability to learn.
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Affiliation(s)
- Jazmin Del Carmen Ruiz
- Oak Ridge Institute for Science and Education, Research Participation Program, Oak Ridge, TN, United States of America
- Human Exposure and Atmospheric Sciences Division, National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, Durham, NC, United States of America
- * E-mail: ;
| | - James J. Quackenboss
- Human Exposure and Atmospheric Sciences Division, National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Las Vegas, NV, United States of America
| | - Nicolle S. Tulve
- Human Exposure and Atmospheric Sciences Division, National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, Durham, NC, United States of America
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O'Keeffe LM, Kearney PM, Greene RA, Zuccolo L, Tilling K, Lawlor DA, Howe LD. Maternal alcohol use during pregnancy and offspring trajectories of height and weight: A prospective cohort study. Drug Alcohol Depend 2015; 153:323-9. [PMID: 26073790 DOI: 10.1016/j.drugalcdep.2015.02.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2014] [Revised: 02/06/2015] [Accepted: 02/28/2015] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous studies have examined associations between alcohol use in pregnancy and offspring birth size but evidence on whether associations persist during childhood is limited. METHODS We examined the association between maternal drinking during pregnancy and trajectories of offspring weight and height from 0 to 10 years in 7597 mother-child pairs in the Avon Longitudinal Study of Parents and Children. To strengthen the inference, we compared the maternal alcohol-offspring growth association with the partner alcohol-offspring growth association, to partially control for unmeasured confounding. We also performed sensitivity analyses restricting our analysis to women of white ethnicity and participants with three or more growth measures. RESULTS Maternal occasional or light daily drinking during pregnancy was not associated with reduced birth weight, birth length or offspring growth trajectories up to age 10 years. The infants of heavy drinking mothers were born 0.78cm shorter (95% CI -1.34, -0.22) and 0.22kg lighter (95% CI -0.34, -0.09) than infants of pregnancy abstainers but by age 10, offspring of heavy drinking mothers were of comparable height (mean difference 0.59cm, 95% CI -0.93, 2.11) and weight (mean difference 0.41kg, 95% CI -0.70, 1.52). These associations were not observed for heavy partner drinking and were not altered in sensitivity analyses. CONCLUSION Maternal occasional or light daily drinking is not associated with birth weight, birth length or postnatal growth, but residual confounding may persist. Maternal heavy drinking may have an intrauterine association with reduced birth weight and length but this association is overcome during childhood.
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Affiliation(s)
- Linda M O'Keeffe
- National Perinatal Epidemiology Centre, Department of Obstetrics and Gynecology, Cork University Maternity Hospital, Cork, Ireland; Department of Epidemiology and Public Health, University College Cork, Cork, Ireland.
| | - Patricia M Kearney
- Department of Epidemiology and Public Health, University College Cork, Cork, Ireland
| | - Richard A Greene
- National Perinatal Epidemiology Centre, Department of Obstetrics and Gynecology, Cork University Maternity Hospital, Cork, Ireland
| | - Luisa Zuccolo
- UK Medical Research Council Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK; School of Social and Community Medicine, University of Bristol, Bristol BS8 2BN, UK
| | - Kate Tilling
- School of Social and Community Medicine, University of Bristol, Bristol BS8 2BN, UK
| | - Debbie A Lawlor
- UK Medical Research Council Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK; School of Social and Community Medicine, University of Bristol, Bristol BS8 2BN, UK
| | - Laura D Howe
- UK Medical Research Council Integrative Epidemiology Unit at the University of Bristol, Bristol BS8 2BN, UK; School of Social and Community Medicine, University of Bristol, Bristol BS8 2BN, UK
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Rushmer RK, Cheetham M, Cox L, Crosland A, Gray J, Hughes L, Hunter DJ, McCabe K, Seaman P, Tannahill C, Van Der Graaf P. Research utilisation and knowledge mobilisation in the commissioning and joint planning of public health interventions to reduce alcohol-related harms: a qualitative case design using a cocreation approach. HEALTH SERVICES AND DELIVERY RESEARCH 2015. [DOI: 10.3310/hsdr03330] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
BackgroundConsiderable resources are spent on research to establish what works to improve the nation’s health. If the findings from this research are used, better health outcomes can follow, but we know that these findings are not always used. In public health, evidence of what works may not ‘fit’ everywhere, making it difficult to know what to do locally. Research suggests that evidence use is a social and dynamic process, not a simple application of research findings. It is unclear whether it is easier to get evidence used via a legal contracting process or within unified organisational arrangements with shared responsibilities.ObjectiveTo work in cocreation with research participants to investigate how research is utilised and knowledge mobilised in the commissioning and planning of public health services to reduce alcohol-related harms.Design, setting and participantsTwo in-depth, largely qualitative, cross-comparison case studies were undertaken to compare real-time research utilisation in commissioning across a purchaser–provider split (England) and in joint planning under unified organisational arrangements (Scotland) to reduce alcohol-related harms. Using an overarching realist approach and working in cocreation, case study partners (stakeholders in the process) picked the topic and helped to interpret the findings. In Scotland, the topic picked was licensing; in England, it was reducing maternal alcohol consumption.MethodsSixty-nine interviews, two focus groups, 14 observations of decision-making meetings, two local feedback workshops (n = 23 andn = 15) and one national workshop (n = 10) were undertaken. A questionnaire (n = 73) using a Behaviourally Anchored Rating Scale was issued to test the transferability of the 10 main findings. Given the small numbers, care must be taken in interpreting the findings.FindingsNot all practitioners have the time, skills or interest to work in cocreation, but when there was collaboration, much was learned. Evidence included professional and tacit knowledge, and anecdotes, as well as findings from rigorous research designs. It was difficult to identify evidence in use and decisions were sometimes progressed in informal ways and in places we did not get to see. There are few formal evidence entry points. Evidence (prevalence and trends in public health issues) enters the process and is embedded in strategic documents to set priorities, but local data were collected in both sites to provide actionable messages (sometimes replicating the evidence base).ConclusionsTwo mid-range theories explain the findings. If evidence hassaliency(relates to ‘here and now’ as opposed to ‘there and then’) andimmediacy(short, presented verbally or visually and with emotional appeal) it is more likely to be used in both settings. A second mid-range theory explains how differing tensions pull and compete as feasible and acceptable local solutions are pursued across stakeholders. Answering what works depends on answering for whom and where simultaneously to find workable (if temporary) ‘blends’. Gaining this agreement across stakeholders appeared more difficult across the purchaser–provider split, because opportunities to interact were curtailed; however, more research is needed.FundingThis study was funded by the Health Services and Delivery Research programme of the National Institute for Health Research.
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Affiliation(s)
- Rosemary K Rushmer
- School of Health and Social Care, Health and Social Care Institute, Teesside University, Middlesbrough, UK
| | - Mandy Cheetham
- School of Health and Social Care, Health and Social Care Institute, Teesside University, Middlesbrough, UK
| | - Lynda Cox
- Clinical Directorates, NHS England, Newcastle upon Tyne, UK
| | - Ann Crosland
- Department of Pharmacy, Health and Wellbeing, University of Sunderland, Sunderland, UK
| | - Joanne Gray
- Department of Public Health and Wellbeing, Northumbria University, Newcastle upon Tyne, UK
| | | | - David J Hunter
- Centre for Public Policy and Health, School of Medicine, Pharmacy and Health, Wolfsan Research Institute, Durham University, Durham, UK
| | - Karen McCabe
- Department of Pharmacy, Health and Wellbeing, University of Sunderland, Sunderland, UK
| | - Pete Seaman
- Glasgow Centre for Population Health, Glasgow, UK
| | | | - Peter Van Der Graaf
- School of Health and Social Care, Health and Social Care Institute, Teesside University, Middlesbrough, UK
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Subbanna S, Psychoyos D, Xie S, Basavarajappa BS. Postnatal ethanol exposure alters levels of 2-arachidonylglycerol-metabolizing enzymes and pharmacological inhibition of monoacylglycerol lipase does not cause neurodegeneration in neonatal mice. J Neurochem 2015; 134:276-87. [PMID: 25857698 DOI: 10.1111/jnc.13120] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 04/01/2015] [Accepted: 04/07/2015] [Indexed: 01/20/2023]
Abstract
The consumption of ethanol by pregnant women may cause neurological abnormalities, affecting learning and memory processes in children, and are collectively described as fetal alcohol spectrum disorders. However, the molecular mechanisms underlying these changes are still poorly understood. In our previous studies, we found that ethanol treatment of postnatal day 7 (P7) mice significantly enhances the anandamide levels but not the 2-arachidonylglycerol (2-AG) levels and induces widespread neurodegeneration, but the reason for the lack of significant effects of ethanol on the 2-AG level is unknown. In this study, we examined developmental changes in diacylglycerol lipase-α, β (DAGL-α and β) and monoacylglycerol lipase (MAGL). We found that the levels of these proteins were significantly higher in adult brains compared to those detected early in brain development. Next, we examined the influence of P7 ethanol treatment on these enzymes, finding that it differentially altered the DAGL-α protein and mRNA levels but consistently enhanced those of the DAGL-β. Interestingly, the ethanol treatment enhanced MAGL protein and mRNA levels. Inhibition of MAGL with KML29 failed to induce neurodegeneration in P7 mice. Collectively, these findings suggest that ethanol significantly activates DAGL-β and MAGL in the neonatal brain, resulting in no net change in 2-AG levels.
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Affiliation(s)
- Shivakumar Subbanna
- Division of Analytical Psychopharmacology, Nathan Kline Institute for Psychiatric Research, Orangeburg, New York, USA
| | - Delphine Psychoyos
- Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, Texas, USA
| | - Shan Xie
- Division of Analytical Psychopharmacology, Nathan Kline Institute for Psychiatric Research, Orangeburg, New York, USA
| | - Balapal S Basavarajappa
- Division of Analytical Psychopharmacology, Nathan Kline Institute for Psychiatric Research, Orangeburg, New York, USA.,New York State Psychiatric Institute, College of Physicians & Surgeons, Columbia University, New York, New York, USA.,Department of Psychiatry, College of Physicians & Surgeons, Columbia University, New York, New York, USA
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Abstract
Prenatal alcohol exposure (PAE) is one of the most prevalent and modifiable risk factors for somatic, behavioral, and neurological abnormalities. Affected individuals exhibit a wide range of such features referred to as fetal alcohol spectrum disorders (FASD). These are characterized by a more or less specific pattern of minor facial dysmorphic features, growth deficiency and central nervous system symptoms. Nevertheless, whereas the diagnosis of the full-blown fetal alcohol syndrome does not pose a major challenge, only a tentative diagnosis of FASD can be reached if only mild features are present and/or maternal alcohol consumption during pregnancy cannot be verified. The respective disorders have lifelong implications. The teratogenic mechanisms induced by PAE can lead to various additional somatic findings and structural abnormalities of cerebrum and cerebellum. At the functional level, cognition, motor coordination, attention, language development, executive functions, memory, social perception and emotion processing are impaired to a variable extent. The long-term development is characterized by disruption and failure in many domains; an age-adequate independency is frequently not achieved. In addition to primary prevention, individual therapeutic interventions and tertiary prevention are warranted; provision of extensive education to affected subjects and their caregivers is crucial. Protective environments are often required to prevent negative consequences such as delinquency, indebtedness or experience of physical/sexual abuse.
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Changes in beverage consumption from pre-pregnancy to early pregnancy in the Norwegian Fit for Delivery study. Public Health Nutr 2014; 18:1187-96. [PMID: 25221910 DOI: 10.1017/s136898001400189x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To describe changes in consumption of different types of beverages from pre-pregnancy to early pregnancy, and to examine associations with maternal age, educational level and BMI. DESIGN Cross-sectional design. Participants answered an FFQ at inclusion into a randomized controlled trial, the Fit for Delivery (FFD) trial, in median gestational week 15 (range: 9-20), reporting current consumption and in retrospect how often they drank the different beverages pre-pregnancy. SETTING Eight local antenatal clinics in southern Norway from September 2009 to February 2013. SUBJECTS Five hundred and seventy-five healthy pregnant nulliparous women. RESULTS Pre-pregnancy, 27 % reported drinking alcohol at least once weekly, compared with none in early pregnancy (P<0.001). The percentage of women drinking coffee (38 % v. 10 %, P<0.001), sugar-sweetened beverages (10 % v. 6 %, P=0.011) and artificially sweetened beverages (12 % v. 9 %, P=0.001) at least daily decreased significantly from pre-pregnancy to early pregnancy, while the percentage of women who reported to drink water (85 % v. 92 %, P<0.001), fruit juice (14 % v. 20 %, P=0.001) and milk (37 % v. 42 %, P=0.001) at least daily increased significantly. From pre-pregnancy to early pregnancy higher educated women reduced their consumption frequency of coffee significantly more than women with lower education. Older women reduced their consumption frequency of coffee and artificially sweetened beverages and increased their consumption frequency of fruit juice and milk significantly more than younger women. CONCLUSIONS There is a significant change in beverage consumption from pre-pregnancy to early pregnancy among Norwegian nulliparous women.
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Sundquist J, Sundquist K, Ji J. Autism and attention-deficit/hyperactivity disorder among individuals with a family history of alcohol use disorders. eLife 2014; 3:e02917. [PMID: 25139954 PMCID: PMC4135348 DOI: 10.7554/elife.02917] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Recent studies suggest de novo mutations may involve the pathogenesis of autism and attention-deficit/hyperactivity disorder (ADHD). Based on the evidence that excessive alcohol consumption may be associated with an increased rate of de novo mutations in germ cells (sperms or eggs), we examine here whether the risks of autism and ADHD are increased among individuals with a family history of alcohol use disorders (AUDs). The standardized incidence ratios (SIRs) of autism and ADHD among individuals with a biological parental history of AUDs were 1.39 (95% CI 1.34–1.44) and 2.19 (95% CI 2.15–2.23), respectively, compared to individuals without an affected parent. Among offspring whose parents were diagnosed with AUDs before their birth, the corresponding risks were 1.46 (95% CI 1.36–1.58) and 2.70 (95% CI 2.59–2.81), respectively. Our study calls for extra surveillance for children with a family history of AUDs, and further studies examining the underlying mechanisms are needed. DOI:http://dx.doi.org/10.7554/eLife.02917.001 Children learn to talk, manage their emotions, and control their behavior in a period when the brain is developing rapidly. The first signs of several developmental disorders, such as autism and attention-deficit/hyperactivity disorder (ADHD), may also emerge during this period. Children with autism may have difficulties with social interactions and communication, while those with attention-deficit/hyperactivity disorder may struggle to pay attention to a task and may be more active than other children. Autism or ADHD are diagnosed based on the child's behavior because the underlying causes of the disorders are not well understood. Both genes and the environment have been linked to the conditions; and it was recently suggested that certain common genetic mutations are more common in children with ADHD or autism. However, as some of the mutations linked to autism are not found in the genes of the affected children's parents, it is likely that they occurred in either of the sperm or the egg cell from the parents. Exposure to harmful substances in the environment can cause mutations in egg or sperm cells, or alter the expression of genes without changing the gene sequence. Excessive alcohol consumption is one environmental factor that can mutate genes or alter gene expression. Here, Sundquist et al. have looked to see if there is a relationship between a child having a parent with an alcohol use problem and the child's risk of developing autism or ADHD. Examining national medical registries identified 24,157 people with autism and 49,348 with ADHD in Sweden between 1987 and 2010. Sundquist et al. discovered that autism and ADHD were more common in individuals who had a parent with a history of an alcohol use disorder than in those whose parents had no history of an alcohol use disorder. There was also an even greater risk of either condition if the parent had been diagnosed with an alcohol use problem before the birth of the child. Adopted children who had a biological parent with an alcohol use disorder were at a greater risk of autism and ADHD than those whose adoptive parent had an alcohol use disorder. However, as very few adopted parents were diagnosed with an alcohol use problem, it is important to be cautious about drawing firm conclusions from this observation. Sundquist et al. estimate that around 4% of autism cases and 11% of ADHD cases could be avoided if parents abstained from heavy alcohol consumption. Though these findings are consistent with parents with an alcohol use disorder being more likely to pass on mutations to their children, there are also other possible explanations. As such, further research examining the underlying cause is still needed. DOI:http://dx.doi.org/10.7554/eLife.02917.002
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Affiliation(s)
- Jan Sundquist
- Center for Primary Health Care Research, Lund University, Malmö, Sweden Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, United States
| | - Kristina Sundquist
- Center for Primary Health Care Research, Lund University, Malmö, Sweden Stanford Prevention Research Center, Stanford University School of Medicine, Stanford, United States
| | - Jianguang Ji
- Center for Primary Health Care Research, Lund University, Malmö, Sweden
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