Abstract
Iron deficiency in early life is associated with delayed development as assessed by a number of clinical trials using similar global scales of development; this poor development during infancy persists in most cases after iron therapy has corrected iron status. If iron deficiency occurs in preschool and older children, the consequences appear reversible with treatment. The biologic understanding of this relationship between development, brain iron status, and functioning is sparse though animal studies repeatedly demonstrate alterations in dopamine metabolism and in the myelination process. Dietary iron deficiency can rapidly deplete brain iron concentrations and repletion is able to normalize them. Residual alterations in striatal dopamine metabolism and myelin production persist if neonatal animals are used. Future studies with more specific measures of neurodevelopment in iron-deficient human infants, and animal models, will allow investigators to more clearly define causal roles of brain iron in neural development and functioning.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 41-58 |
| Number of pages | 18 |
| Journal | Annual Review of Nutrition |
| Volume | 23 |
| DOIs | |
| State | Published - Sep 11 2003 |
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All Science Journal Classification (ASJC) codes
- Medicine (miscellaneous)
- Nutrition and Dietetics
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Iron status and neural functioning. / Beard, John L.; Connor, James.
In: Annual Review of Nutrition, Vol. 23, 11.09.2003, p. 41-58.Research output: Contribution to journal › Review article
TY - JOUR
T1 - Iron status and neural functioning
AU - Beard, John L.
AU - Connor, James
PY - 2003/9/11
Y1 - 2003/9/11
N2 - Iron deficiency in early life is associated with delayed development as assessed by a number of clinical trials using similar global scales of development; this poor development during infancy persists in most cases after iron therapy has corrected iron status. If iron deficiency occurs in preschool and older children, the consequences appear reversible with treatment. The biologic understanding of this relationship between development, brain iron status, and functioning is sparse though animal studies repeatedly demonstrate alterations in dopamine metabolism and in the myelination process. Dietary iron deficiency can rapidly deplete brain iron concentrations and repletion is able to normalize them. Residual alterations in striatal dopamine metabolism and myelin production persist if neonatal animals are used. Future studies with more specific measures of neurodevelopment in iron-deficient human infants, and animal models, will allow investigators to more clearly define causal roles of brain iron in neural development and functioning.
AB - Iron deficiency in early life is associated with delayed development as assessed by a number of clinical trials using similar global scales of development; this poor development during infancy persists in most cases after iron therapy has corrected iron status. If iron deficiency occurs in preschool and older children, the consequences appear reversible with treatment. The biologic understanding of this relationship between development, brain iron status, and functioning is sparse though animal studies repeatedly demonstrate alterations in dopamine metabolism and in the myelination process. Dietary iron deficiency can rapidly deplete brain iron concentrations and repletion is able to normalize them. Residual alterations in striatal dopamine metabolism and myelin production persist if neonatal animals are used. Future studies with more specific measures of neurodevelopment in iron-deficient human infants, and animal models, will allow investigators to more clearly define causal roles of brain iron in neural development and functioning.
UR - http://www.scopus.com/inward/record.url?scp=0041534373&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0041534373&partnerID=8YFLogxK
U2 - 10.1146/annurev.nutr.23.020102.075739
DO - 10.1146/annurev.nutr.23.020102.075739
M3 - Review article
C2 - 12704220
AN - SCOPUS:0041534373
VL - 23
SP - 41
EP - 58
JO - Annual Review of Nutrition
JF - Annual Review of Nutrition
SN - 0199-9885
ER -