scholarly journals Screening for iron deficiency in surgical patients based on noninvasive zinc protoporphyrin measurements

Transfusion ◽  
2019 ◽  
Vol 60 (1) ◽  
pp. 62-72
Author(s):  
Christoph Füllenbach ◽  
Philipp Stein ◽  
Patricia Glaser ◽  
Chris Triphaus ◽  
Simone Lindau ◽  
...  
2019 ◽  
Vol 149 (3) ◽  
pp. 513-521 ◽  
Author(s):  
Brietta M Oaks ◽  
Josh M Jorgensen ◽  
Lacey M Baldiviez ◽  
Seth Adu-Afarwuah ◽  
Ken Maleta ◽  
...  

ABSTRACTBackgroundPrevious literature suggests a U-shaped relation between hemoglobin concentration and adverse birth outcomes. There is less evidence on associations between iron status and birth outcomes.ObjectiveOur objective was to determine the associations of maternal hemoglobin concentration and iron status with birth outcomes.MethodsWe conducted a secondary data analysis of data from 2 cohorts of pregnant women receiving iron-containing nutritional supplements (20–60 mg ferrous sulfate) in Ghana (n = 1137) and Malawi (n = 1243). Hemoglobin concentration and 2 markers of iron status [zinc protoporphyrin and soluble transferrin receptor (sTfR)] were measured at ≤20 weeks and 36 weeks of gestation. We used linear and Poisson regression models and birth outcomes included preterm birth (PTB), newborn stunting, low birth weight (LBW), and small-for-gestational-age.ResultsPrevalence of iron deficiency (sTfR >6.0 mg/L) at enrollment was 9% in Ghana and 20% in Malawi. In early pregnancy, iron deficiency was associated with PTB (9% compared with 17%, adjusted RR: 1.63; 95% CI: 1.14, 2.33) and stunting (15% compared with 23%, adjusted RR: 1.44; 95% CI: 1.09, 1.94) in Malawi but not Ghana, and was not associated with LBW in either country; replete iron status (sTfR <10th percentile) was associated with stunting (9% compared with 15%, adjusted RR: 1.71; 95% CI: 1.06, 2.77) in Ghana, but not PTB or LBW, and was not associated with any birth outcomes in Malawi. In late pregnancy, iron deficiency was not related to birth outcomes in either country and iron-replete status was associated with higher risk of LBW (8% compared with 16%, adjusted RR: 1.90; 95% CI: 1.17, 3.09) and stunting (6% compared with 13%, adjusted RR: 2.14; 95% CI: 1.21, 3.77) in Ghana, but was not associated with birth outcomes in Malawi.ConclusionsThe associations of low or replete iron status with birth outcomes are population specific. Research to replicate and extend these findings would be beneficial. These trials were registered at clinicaltrials.gov as NCT00970866 (Ghana) and NCT01239693 (Malawi).


1996 ◽  
Vol 244 (1) ◽  
pp. 91-101 ◽  
Author(s):  
Shan S. WongA ◽  
Ala S. Qutishat ◽  
Jason Lange ◽  
Terrie G. Gornet ◽  
L. Maximilian Buja

2010 ◽  
Vol 83 (Suppl_1) ◽  
pp. 585-585
Author(s):  
Steven Marmer ◽  
Melinda Chen ◽  
Beth Fischer ◽  
Vidya Sridhar ◽  
Sharon Blohowiak ◽  
...  

2008 ◽  
Vol 153 (1) ◽  
pp. 133-136 ◽  
Author(s):  
Nicole L. Baumann-Blackmore ◽  
Elizabeth Goetz ◽  
Sharon E. Blohowiak ◽  
Olamide Zaka ◽  
Pamela J. Kling

2019 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Chris Triphaus ◽  
Leonie Judd ◽  
Patricia Glaser ◽  
Marie H. Goehring ◽  
Elke Schmitt ◽  
...  

1994 ◽  
Vol 3 (6) ◽  
pp. 275-278
Author(s):  
Lubor Malina ◽  
Stanislav Janous˘ek ◽  
Ladislav Rosa ◽  
Rajmund Porkorny ◽  
Ladislav Pelech

Blood ◽  
2005 ◽  
Vol 106 (10) ◽  
pp. 3625-3631 ◽  
Author(s):  
Robert S. Ohgami ◽  
Dean R. Campagna ◽  
Brendan Antiochos ◽  
Emily B. Wood ◽  
John J. Sharp ◽  
...  

AbstractHypochromic, microcytic anemias are typically the result of inadequate hemoglobin production because of globin defects or iron deficiency. Here, we describe the phenotypic characteristics and pathogenesis of a new recessive, hypochromic, microcytic anemia mouse mutant, nm1054. Although the mutation nm1054 is pleiotropic, also resulting in sparse hair, male infertility, failure to thrive, and hydrocephaly, the anemia is the focus of this study. Hematologic analysis reveals a moderately severe, congenital, hypochromic, microcytic anemia, with an elevated red cell zinc protoporphyrin, consistent with functional erythroid iron deficiency. However, serum and tissue iron analyses show that nm1054 animals are not systemically iron deficient. From hematopoietic stem cell transplantation and iron uptake studies in nm1054 reticulocytes, we provide evidence that the nm1054 anemia is due to an intrinsic hematopoietic defect resulting in inefficient transferrin-dependent iron uptake by erythroid precursors. Linkage studies demonstrate that nm1054 maps to a genetic locus not previously implicated in microcytic anemia or iron phenotypes.


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