scholarly journals Dietary Iron Fortification Normalizes Fetal Hematology, Hepcidin, and Iron Distribution in a Rat Model of Prenatal Alcohol Exposure

2018 ◽  
Vol 42 (6) ◽  
pp. 1022-1033 ◽  
Author(s):  
Shane M. Huebner ◽  
Kaylee K. Helfrich ◽  
Nipun Saini ◽  
Sharon E. Blohowiak ◽  
Adrienne A. Cheng ◽  
...  
2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Kaylee Helfrich ◽  
Nipun Saini ◽  
Sze Ting (Cecilia) Kwan ◽  
Susan Smith

Abstract Objectives Prenatal alcohol exposure (PAE) dysregulates iron metabolism and causes fetal iron deficiency in rats, even when mothers consume sufficient iron. This dysregulation is partly due to PAE-mediated induction of hepcidin, which routes iron to hepatic storage, where it is unavailable for fetal use. It is unclear how PAE upregulates hepcidin; our rat model suggests dysregulation may be via the IL6/STAT3 pathway. The objective of this study is to quantify hepcidin in a mouse PAE model and ascertain via which pathway(s) PAE disrupts hepcidin. Methods C57BL/6J female mice consumed AIN93G diet prior to and throughout pregnancy. Pregnant females received 3g/Kg alcohol or isocaloric maltodextrin (MD) by gavage from gestational day (GD) 8.5-17.5. We analyzed mothers and fetuses at GD17.5. Results Although PAE fetuses had an increased incidence of malformations, fetal weight at GD17.5 did not differ from MD controls (p = 0.800). As in our rat model, PAE upregulated fetal hepatic hepcidin expression (191% increase, p = 0.010). Supporting other studies of chronic alcohol consumption in mice, PAE reduced maternal hepcidin expression, although not significantly (45% decrease, p = 0.055). At a higher alcohol dose (4.5g/Kg, GD13.5-17.5), maternal hepcidin expression was significantly lower than MD controls (59% decrease, p = 0.044). Potential sources of this hepcidin dysregulation include PAE-induced reductions in fetal (24% decrease, p = 0.035) and maternal (61% decrease, p = 0.0004) hepatic Bmp6 expression and elevated fetal hepatic erythropoietin expression (61% increase, p = 0.033). Although decreased BMP6 may contribute to the reduced maternal hepcidin, decreased BMP6 is inconsistent with the elevated fetal hepcidin, and, along with the elevated Epo, may reflect an attempt to increase iron availability in response to PAE. We quantified pro-inflammatory cytokines and found unaltered (Il-6, Ifn-gamma) or decreased (Tnf-alpha) expression in maternal and fetal liver, suggesting a lack of generalized hepatic inflammation in this model. Conclusions PAE exerts different effects on maternal and fetal hepcidin, which may reflect differences in iron status, time of development, or ethanol processing. PAE also dysregulates hepcidin regulatory pathways. Funding Sources T32-DK, R01-AA.


2019 ◽  
Vol 597 (23) ◽  
pp. 5619-5637 ◽  
Author(s):  
Tam M. T. Nguyen ◽  
Sarah E. Steane ◽  
Karen M. Moritz ◽  
Lisa K. Akison

2012 ◽  
Vol 13 (2) ◽  
pp. 32-42 ◽  
Author(s):  
Yvette D. Hyter

Abstract Complex trauma resulting from chronic maltreatment and prenatal alcohol exposure can significantly affect child development and academic outcomes. Children with histories of maltreatment and those with prenatal alcohol exposure exhibit remarkably similar central nervous system impairments. In this article, I will review the effects of each on the brain and discuss clinical implications for these populations of children.


2000 ◽  
Vol 42 (8) ◽  
pp. 508-514 ◽  
Author(s):  
Béatrice Larroque ◽  
Monique Kaminski ◽  
Phillipe Dehaene ◽  
Damien Subtil ◽  
Denis Querleu

Author(s):  
Manuela Pfinder ◽  
Stefan Liebig ◽  
Reinhold Feldmann

Data on the relation between moderate prenatal alcohol exposure (PAE) and behavioral disorders are inconsistent, and this raises new questions. We examined (1) the association between moderate PAE and problem behaviors and (2) whether these associations differed by levels of socioeconomic status (SES), fetal smoke exposure, or exposure to environmental tobacco smoke (ETS). Data were taken from the German Health Interview and Examination Survey for Children and Adolescents (KiGGS) study. Parents evaluated children’s behaviors using the Strengths and Difficulties Questionnaire (SDQ). Results showed a slight, but insignificant, increase of problem behaviors in children with moderate PAE. In 3- to 6-year-olds, PAE had a stronger effect on hyperactivity/inattention in combination with fetal smoke exposure (odds ratio = 2.82), than did PAE alone. Effects were not stronger in low-SES children, but they were stronger in children with ETS. We conclude that moderate PAE might have adverse effects on neurodevelopment, with stronger effects in disadvantaged populations. To confirm our preliminary findings, further research should be conducted.


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