Gestational zinc deficiency affects the regulation of transcription factors AP-1, NF-κB and NFAT in fetal brain.
Gestational zinc deficiency affects the regulation of transcription factors AP-1, NF-κB and NFAT in fetal brain.
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DOI:
10.1016/j.jnutbio.2009.09.003
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发表时间:
2010-11
影响因子:
5.6
通讯作者:
Oteiza, Patricia I.
中科院分区:
文献类型:
--
作者:
Aimo, Lucila;Mackenzie, Gerardo G.;Keenan, Alison H.;Oteiza, Patricia I.
Transcription factors AP-1, NF- κB and NFAT are central to brain development by regulating the expression of genes that modulate cell proliferation, differentiation, apoptosis, and synaptic plasticity. This work investigated the consequences of feeding zinc deficient and marginal zinc diets to rat dams during gestation on the modulation of AP-1, NF- κB and NFAT in fetal brain. Sprague-Dawley rats were fed from gestation day 0 a control diet ad libitum (25 μg zinc/g diet, C), a zinc deficient diet ad libitum (0.5 μg zinc/g diet, ZD), the control diet in the amounts eaten by the ZD rats (restrict fed, RF), or a diet containing a marginal zinc concentration ad libitum (10 μg zinc/g diet, MZD) until gestation day 19. AP-1-DNA binding was higher (50-190%) in nuclear fraction isolated from ZD, RF and MZD fetal brains compared to controls. In MZD fetal brain high levels of activation of the upstream mitogen-activated protein kinases JNK and p38 and low levels of ERK phosphorylation were observed. Total levels of NF- κB and NFAT activation were higher or similar in the ZD and MZD groups than in controls, respectively. However, NF- κB- and NFAT-DNA binding in nuclear fractions was markedly lower in ZD and MZD fetal brain than in controls (50-80%). The latter could be related to zinc deficiency-associated alterations of the cytoskeleton which is required for NF- κB and NFAT nuclear transport. In summary, suboptimal zinc nutrition during gestation could cause long term effects on brain function, partially through a deregulation of transcription factors AP-1, NF- κB and NFAT.
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DOI:
10.1089/cap.2005.15.619
发表时间:
2005-08-01
影响因子:
1.9
作者:
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影响因子:
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10.1111/j.1749-6632.1998.tb08987.x
发表时间:
1998-01-01
期刊:
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DOI:
10.1016/j.devbrainres.2004.10.010
发表时间:
2005-01-01
期刊:
DEVELOPMENTAL BRAIN RESEARCH
影响因子:
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作者:
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