CORRELATION BETWEEN MATERNAL IRON STATUS AND FETAL HEMATOLOGICAL PARAMETERS: EVALUATING ERYTHROPOIETIN, HEMOGLOBIN, AND FERRITIN LEVELS IN MATERNAL AND CORD BLOOD

Main Article Content

Dr Hina Zuhra
Dr Samina Firdous
Dr Irum Javed
Dr Hina Umair
Dr Tayyaba Sheikh
Dr Farzana Hakim

Keywords

Maternal iron deficiency, cord blood, hemoglobin, ferritin, erythropoietin, neonatal outcomes

Abstract

To evaluate the correlation between maternal iron status and fetal hematological parameters, focusing on hemoglobin, ferritin, and erythropoietin levels in maternal and cord blood.


Methods: A prospective observational study was conducted at Kohat Medical College and its affiliated hospitals from January 2024 to January 2025. A total of 82 mother newborn pairs were included. Maternal venous blood was collected prior to delivery, while cord blood samples were obtained immediately after delivery. Hematological parameters were analyzed using an automated analyzer, ferritin levels were measured via chemiluminescent immunoassay, and erythropoietin was determined using ELISA. Data were analyzed using SPSS version 26, with Pearson correlation applied to assess associations.


Results: Maternal mean hemoglobin and ferritin levels were significantly lower than reference standards (p<0.05). Cord blood hemoglobin (14.9 ± 1.8 g/dL) and ferritin (105.7 ± 28.9 ng/mL) were significantly higher than maternal values (p<0.05). Positive correlations were observed between maternal and cord hemoglobin (r=0.46, p=0.001), ferritin (r=0.41, p=0.002), and erythropoietin (r=0.29, p=0.03).


Conclusion: Maternal iron status strongly influences neonatal hematological indices, with cord blood ferritin and hemoglobin reflecting maternal reserves. Optimizing maternal iron supplementation and routine ferritin screening during pregnancy may improve neonatal outcomes.

Abstract 62 | Pdf Downloads 8

References

1. Sanni OB, Chambers T, Li JH, Rowe S, Woodman AG, Ospina MB, et al. A systematic review and meta-analysis of the correlation between maternal and neonatal iron status and haematologic indices. 2020;27.
2. Ashraf S, Sadaf M, Farkhanda T, Yousaf S, Iftikhar A, Iftikhar MJJoRMC. Maternal Serum Ferritin Levels and its effect on Cord Blood Hemoglobin in patients with Gestational Diabetes Mellitus. 2022;26(4).
3. Davidson EM, Simpson JA, Fowkes FJJNR. The interplay between maternal–infant anemia and iron deficiency. 2023;81(4):480-91.
4. Kabyemela ER, Fried M, Kurtis JD, Moses G, Gorres JP, Muehlenbachs A, et al. Fetal cytokine balance, erythropoietin and thalassemia but not placental malaria contribute to fetal anemia risk in Tanzania. 2021;12:624136.
5. Satué K, Fazio E, La Fauci D, Medica PJAAB. Hematological indexes and iron status in pregnant mares. 2023;66(3):197-205.
6. Delaney KM, Guillet R, Pressman EK, Ganz T, Nemeth E, O'Brien KOJTJon. Umbilical cord erythroferrone is inversely associated with hepcidin, but does not capture the most variability in iron status of neonates born to teens carrying singletons and women carrying multiples. 2021;151(9):2590-600.
7. Means RTJN. Iron deficiency and iron deficiency anemia: implications and impact in pregnancy, fetal development, and early childhood parameters. 2020;12(2):447.
8. Milman NJJoN-PM. Iron supplementation in pregnant Danish women revisited: effects on prepartum and postpartum iron deficiency, anemia, serum erythropoietin; including iron status, erythropoietin and anthropometrics in newborns. A randomized, placebo-controlled study. 2022;15(4):731-44.
9. Tiruneh T, Shiferaw E, Enawgaw BJIjop. Prevalence and associated factors of anemia among full-term newborn babies at University of Gondar comprehensive specialized hospital, Northwest Ethiopia: a cross-sectional study. 2020;46(1):1.
10. Delaney KM, Barad A, Castillo LF, Hasund CM, Guillet R, Pressman EK, et al. Placental erythroferrone and erythropoietin mRNA expression is not associated with maternal or neonatal iron status in adolescents carrying singletons and adult women carrying multiples. 2023;153(7):1950-8.
11. Sangkhae V, Yu V, Coffey R, O'Brien KO, Ganz T, Nemeth EJAJoH. Erythroferrone contributes to iron mobilization for embryo erythropoiesis in iron‐deficient mouse pregnancies. 2022;97(10):1348-58.
12. Wojciechowska M, Wisniewski O, Pruszynska-Oszmalek E, Krauss H, Sassek M, Leciejewska N, et al. Effect of obesity and hypothyroidism on hepcidin concentration in pregnancy-a pilot study using maternal and umbilical cord blood at delivery day. 2022;73(5):10.26402.
13. Delaney KM, Guillet R, Pressman EK, Caulfield LE, Zavaleta N, Abrams SA, et al. Iron absorption during pregnancy is underestimated when iron utilization by the placenta and fetus is ignored. 2020;112(3):576-85.
14. Raffaeli G, Manzoni F, Cortesi V, Cavallaro G, Mosca F, Ghirardello SJN. Iron homeostasis disruption and oxidative stress in preterm newborns. 2020;12(6):1554.
15. Kling PJJN. Iron nutrition, erythrocytes, and erythropoietin in the NICU: erythropoietic and neuroprotective effects. 2020;21(2):e80-e8.
16. Barad A, Guillet R, Pressman EK, Katzman PJ, Miller RK, Darrah TH, et al. Placental iron content is lower than previously estimated and is associated with maternal iron status in women at greater risk of gestational iron deficiency and anemia. 2022;152(3):737-46.
17. Getu S, Shiferaw E, Melku MJCL. Neonatal Iron: Factors Influencing its Level and Associated Complications-a Review Article. 2020;66(3).
18. Dera-Szymanowska A, Filipowicz D, Misan N, Szymanowski K, Chillon TS, Asaad S, et al. Are twin pregnancies at higher risk for Iron and calcium deficiency than singleton pregnancies? 2023;15(18):4047.
19. Babacheva E, Rallis D, Christou H, Mitsiakos G, Mikos T, Dampala K, et al. Maternal diabetes and the role of neonatal reticulocyte hemoglobin content as a biomarker of iron status in the perinatal period. 2022;13:1011897.
20. Satué K, Fazio E, Cravana C, Medica PJT. Hepcidin, ferritin and iron homeostasis in pregnant Spanish Purebred mares. 2023;206:78-86.