Serum transferrin receptor levels in the evaluation of iron deficiency in the neonate. 1996

U Rusia, and C Flowers, and N Madan, and N Agarwal, and S K Sood, and M Sikka
Department of Pathology, University College of Medical Sciences, Shahdara, Delhi, India.

Iron deficiency anemia (IDA) is a major global problem. Early onset of iron deficiency in developing countries makes it imperative to identify iron deficiency in neonates. Most conventional laboratory parameters of iron status fail to distinguish neonates with iron deficient erythropoiesis. Serum transferrin receptor (STFR) levels are a recent sensitive measure of iron deficiency and the present study was carried out to evaluate the usefulness of cord serum transferrin receptors in identifying iron deficient erythropoiesis in neonates. A complete hemogram, red cell indices, iron profile: serum iron (SI), percent transferrin saturation (TS%) and serum ferritin (SF) was carried out in 100 full-term neonates and their mothers at parturition. Cord and maternal STFR levels were estimated using a sensitive enzyme-linked immunosorbent assay (ELISA) technique. Anemic women had a significantly lower SI, their TS% and high STFR levels suggesting that iron deficiency was responsible for the anemia. In the neonates of iron deficient mothers, cord SI, TS% and cord ferritin were not significantly different from those of neonates born to non-anemic mothers. Cord STFR level correlated well with hemoglobin (Hb) and laboratory parameters of iron status, and its level was significantly higher in neonates born to anemic mothers than in those born to non-anemic mothers. It was the only laboratory parameter to differentiate between neonates born to anemic and non-anemic mothers. Therefore, STFR is a sensitive index of iron status in neonates and identifies neonates with iron deficient erythropoiesis.

UI MeSH Term Description Entries
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D011250 Pregnancy Complications, Hematologic The co-occurrence of pregnancy and a blood disease (HEMATOLOGIC DISEASES) which involves BLOOD CELLS or COAGULATION FACTORS. The hematologic disease may precede or follow FERTILIZATION and it may or may not have a deleterious effect on the pregnant woman or FETUS. Complications, Hematologic Pregnancy,Hematologic Pregnancy Complications,Pregnancy Complications, Hematological,Pregnancy, Hematologic Complications,Complication, Hematologic Pregnancy,Complication, Hematological Pregnancy,Complications, Hematological Pregnancy,Hematologic Pregnancy Complication,Hematological Pregnancy Complication,Hematological Pregnancy Complications,Pregnancies, Hematologic Complications,Pregnancy Complication, Hematologic,Pregnancy Complication, Hematological
D011990 Receptors, Transferrin Membrane glycoproteins found in high concentrations on iron-utilizing cells. They specifically bind iron-bearing transferrin, are endocytosed with its ligand and then returned to the cell surface where transferrin without its iron is released. Transferrin Receptors,Transferrin Receptor,Receptor, Transferrin
D012044 Regression Analysis Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable. Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D003937 Diagnosis, Differential Determination of which one of two or more diseases or conditions a patient is suffering from by systematically comparing and contrasting results of diagnostic measures. Diagnoses, Differential,Differential Diagnoses,Differential Diagnosis
D004797 Enzyme-Linked Immunosorbent Assay An immunoassay utilizing an antibody labeled with an enzyme marker such as horseradish peroxidase. While either the enzyme or the antibody is bound to an immunosorbent substrate, they both retain their biologic activity; the change in enzyme activity as a result of the enzyme-antibody-antigen reaction is proportional to the concentration of the antigen and can be measured spectrophotometrically or with the naked eye. Many variations of the method have been developed. ELISA,Assay, Enzyme-Linked Immunosorbent,Assays, Enzyme-Linked Immunosorbent,Enzyme Linked Immunosorbent Assay,Enzyme-Linked Immunosorbent Assays,Immunosorbent Assay, Enzyme-Linked,Immunosorbent Assays, Enzyme-Linked
D005260 Female Females
D005293 Ferritins Iron-containing proteins that are widely distributed in animals, plants, and microorganisms. Their major function is to store IRON in a nontoxic bioavailable form. Each ferritin molecule consists of ferric iron in a hollow protein shell (APOFERRITINS) made of 24 subunits of various sequences depending on the species and tissue types. Basic Isoferritin,Ferritin,Isoferritin,Isoferritin, Basic
D005312 Fetal Blood Blood of the fetus. Exchange of nutrients and waste between the fetal and maternal blood occurs via the PLACENTA. The cord blood is blood contained in the umbilical vessels (UMBILICAL CORD) at the time of delivery. Cord Blood,Umbilical Cord Blood,Blood, Cord,Blood, Fetal,Blood, Umbilical Cord,Bloods, Cord,Bloods, Fetal,Bloods, Umbilical Cord,Cord Blood, Umbilical,Cord Bloods,Cord Bloods, Umbilical,Fetal Bloods,Umbilical Cord Bloods

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