Identify Iron Deficiency Anemia Research Articles

Potential Diagnostic Role of Hepcidin in Anemic Patients Affected by Inflammatory Bowel Disease: A Systematic Review.

Anemia is the main extraintestinal comorbidity of Inflammatory Bowel Disease (IBD). Differentiating the type of anemia in these disorders is still a challenge. Hepcidin could be a promising biomarker to identify iron deficiency anemia (IDA), anemia of chronic disease (ACD) and the concomitant presence of both IDA and ACD. To evaluate the potential role of hepcidin dosage in the management of anemia in IBD patients, we performed a systematic review by a comprehensive literature analysis of original papers reporting the dosage of hepcidin in IBD patients. In all the articles reviewed, the dosage of ferritin was reported, and the correlation between hepcidin and ferritin has been used to compare these two biomarkers. A total of 12 articles concerning the dosage of hepcidin in IBD were included, comprising in total of 976 patients. The results of the hepcidin values in IBD patients when compared with controls were conflicting. In fact, four articles described an increase in this biomarker, three showed a decrease and five did not find significant differences. The correlation with ferritin was positive and significant. In three studies, some differences between hepcidin dosages and ferritin levels indicate a possible role when IDA and ACD could be present at the same time. Considering the contradictory data of the studies, the diagnostic role of hepcidin as a biomarker remains elusive in IBD patients. These differences could be due to the clinical characteristics of the patients enrolled that should be better defined in the future. A suitable clinical trial should be designed to outline the possible role of hepcidin in differentiating IDA, ACD and concomitant IDA and ACD in IBD patients. At the moment, ferritin still remains the best marker to diagnose these conditions, in addition to hemoglobin, transferrin saturation and CRP as recommended by the ECCO guidelines.

DIAGNOSTIC ACCURACY OF MENTZER INDEX AS A SCREENING TOOL FOR THE DIAGNOSIS OF IRON DEFICIENCY ANEMIA BY TAKING IRON PROFILE AS GOLD STANDARD IN PATIENTS PRESENTING WITH HYPOCHROMIC MICROCYTIC ANEMIA AT TERTIARY CARE HOSPITAL, KARACHI

Anemia is the most prevalent haematological condition in newborns and children. A deficiency of iron necessary for synthesizing haemoglobin causes it. This study used the iron profile as the gold standard for patients with hypochromic microcytic anemia at a tertiary care hospital in Karachi to assess the Mentzer index's diagnostic accuracy for iron-deficient anemia. From January 2021 to December 2022, a cross-sectional descriptive study was conducted in the Department of Pediatrics, NICH, Karachi. With the patient's explicit consent, data was prospectively collected. Those who satisfied the diagnostic requirements totaled 163 patients. While frequency and percentages were used to represent qualitative factors, simple descriptive statistics with mean and standard deviation were used to convey quantitative data. The following metrics were calculated: diagnostic accuracy, sensitivity, specificity, positive and negative predictive values, and a significance level set at p-value ≤0.05. A total of 163 patients with hypochromic microcytic anemia were included in the study; their mean age was 8.23±3.57 years. 78 (47.9 percent) and 85 (52.1 percent) were female. For the diagnosis of iron deficiency anemia, the Mentzer index's sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy were determined to be, respectively, 90.1 percent, 90.1 percent, 93.8 percent, 84.6 percent, and 90.8 percent. According to the study's findings, cell-count-based indices—in particular, the Mentzer index—are trustworthy, widely accessible techniques that have a high degree of discrimination power for identifying iron deficiency anemia.

Soluble transferrin receptor and soluble transferrin receptor/log ferritin index in diagnosis of iron deficiency anemia in pediatric inflammatory bowel disease

BackgroundThere is no single reliable marker of iron homeostasis in inflammatory bowel disease. AimsTo determine diagnostic usefulness of soluble transferrin receptor and soluble transferrin receptor/log ferritin index in iron deficiency anemia in children with inflammatory bowel disease. MethodsWe assessed soluble transferrin receptor in serum and calculated soluble transferrin receptor/log ferritin index in 75 children with inflammatory bowel disease. Diagnostic ability to identify iron deficiency anemia was examined by receiver operating characteristic analysis. ResultsStudy group comprised 27 cases of iron deficiency anemia, 6 anemia of chronic disease with iron deficiency, 5 anemia of chronic disease. Soluble transferrin receptor was significantly increased in children with iron deficiency anemia (median: 1.63 μg/ml) compared to non-anemic children (median: 1.02 μg/ml). Soluble transferrin receptor/log ferritin index was significantly higher in iron deficiency anemia (median: 1.76) than in anemia of chronic disease (median: 0.55), anemia of chronic disease with iron deficiency (median: 0.68) or patients without anemia (median: 0.72). Soluble transferrin receptor and its index were not correlated with disease activity or inflammatory markers. Diagnostic power for soluble transferrin receptor/log ferritin index (0.864) was superior to soluble transferrin receptor (0.768) in iron deficiency anemia recognition. ConclusionSoluble transferrin receptor/log ferritin index has better diagnostic utility than soluble transferrin receptor for iron deficiency anemia detection in pediatric inflammatory bowel disease.

Agreement assessment between hemoglobin and hematocrit to detect anemia prevalence in children less than 5 years old

Abstract This study aimed to assess the extent of agreement between hemoglobin (Hb) and hematocrit (Ht), while also verifying whether anemia prevalence can be determined by hematocrit cut-off points. A hundred pairs of capillary Hb and Ht of children less than 5 years old were analyzed. The Hb and Ht concentrations were measured using HemoCue and microhematocrit centrifuge, respectively. The Bland and Altman’s method was used to assess the agreement between ‘observed Hb’ and ‘Hb estimated through Ht’ (Hb = Ht/3). The ROC curve was constructed based on the reference to anemia classification according to Hb. The subjects were classified according to the status of anemia obtained through the Ht, also evaluating the agreement regarding Hb. The area under the ROC curve identified that Ht <35% correctly classified 85% of subjects with Hb <11.0 g/dL. However, the cut-off point of <33% showed higher kappa (k = 0.49 against 0.41) and higher relative agreement (82% vs. 74%) compared to Ht <35%. Our findings indicate that capillary Hb and Ht could be used either together or separately to assess the prevalence of anemia. Considering the need to identify iron deficiency anemia with a single indicator in population studies, the use of Ht would be simpler and cost-saving.

Expression of the iron hormone hepcidin distinguishes different types of anemia in African children.

Childhood anemia is a major global health problem resulting from multiple causes. Iron supplementation addresses iron deficiency anemia but is undesirable for other types of anemia and may exacerbate infections. The peptide hormone hepcidin governs iron absorption; hepcidin transcription is mediated by iron, inflammation, and erythropoietic signals. However, the behavior of hepcidin in populations where anemia is prevalent is not well established. We show that hepcidin measurements in 1313 African children from The Gambia and Tanzania (samples taken in 2001 and 2008, respectively) could be used to identify iron deficiency anemia. A retrospective secondary analysis of published data from 25 Gambian children with either postmalarial or nonmalarial anemia demonstrated that hepcidin measurements identified individuals who incorporated >20% oral iron into their erythrocytes. Modeling showed that this sensitivity of hepcidin expression at the population level could potentially enable simple groupings of individuals with anemia into iron-responsive and non-iron-responsive subtypes and hence could guide iron supplementation for those who would most benefit.

Efficiency of red cell distribution width in identification of children aged 1-3 years with iron deficiency anemia against traditional hematological markers

BackgroundCurrent strategy to identify iron deficiency anemia relies on markers involving high costs. Reports have suggested red cell distribution width (RDW) as a potential screening test for identifying iron deficiency anemia (IDA) but studies in pediatric populations are lacking. Our study elucidates the discriminative ability of RDW for detecting IDA among young children.Methods2091 blood reports of children aged 1–3 years from an urban low socio-economic population of Delhi were analyzed to evaluate the sensitivity of RDW in discriminating IDA using receiver’s operating characteristic curve. Hemoglobin and RDW were estimated using coulter, zinc protoporphyrin with AVIV fluorometer and serum ferritin by enzyme linked immunosorbent assay.ResultsA total of 1026 samples were classified as iron deficient anemia using gold standard. As a marker of overall efficiency, area under the curve for RDW was 0.83 (95% CI, 0.81- 0.84; p < 0.001). Sensitivity of RDW at cut-off of 18% to detect iron deficiency anemia was 76.5% and specificity 73.1% yielding a positive predictive value of 73% and negative predictive value of 76%. At a cut-off of RDW 16.4%, the sensitivity was 94% and at a cut-off of 21%, the specificity was 95%. Combination of hemoglobin ≤10 g/dL and RDW >15%, yielded a sensitivity of 99% and specificity of 90%. These data suggest that simple coulter analysis estimating hemoglobin and RDW can be used for identification of children in need for iron therapy.ConclusionsIn India and similar settings, RDW >15% with hemoglobin ≤10.0 g/dL identifies iron deficient anemic children without need for iron status markers which could help reduce cost of management especially in poor settings.Trial registrationClinicaltrials.gov NCT00255385.

In Case You Missed It: Screening for Iron Deficiency with ZPP

Dr Russell has disclosed no financial relationship relevant to this commentary. This commentary does not contain a discussion of an unapproved/investigative use of a commercial product/device. Iron deficiency is a common finding during early development as normal growth acceleration can often outpace total body iron stores and iron intake and absorption. Although a CBC and ferritin are routinely used in many pediatric practices to identify iron deficiency anemia (IDA), they have limited utility as a screening tool in identifying a deficiency in iron prior to the development of anemia. Although iron deficiency is commonly associated with IDA, the larger-view rationale for iron therapy is to promote normal neurodevelopment. Hence, identifying an inexpensive screening instrument that is …

Red cell distribution width is predictive of mortality in trauma patients

Red blood cell distribution width (RDW) is a component of the complete blood count (CBC) that is traditionally used to identify iron-deficiency anemia. RDW has been shown to predict mortality in patients with multiple different medical conditions and in general populations. It is unknown whether RDW predicts outcomes in trauma patients. This study tested whether RDW predicts mortality in a trauma population at a Level I trauma center. Trauma patients with a CBC from October 2005 to December 2011 were evaluated. Sex-specific 30-day and 1-year all-cause mortality and RDW were studied using Cox regression adjusted for age, Injury Severity Score (ISS), hospital length of stay, blunt versus penetrating trauma, and other CBC parameters. A total of 3,637 females and 5,901 males were evaluated at 30 days and 1 year. With full adjustment, RDW predicted 30-day mortality in males (for RDW quintiles 1-5: 2.2%, 1.8%, 3.6%, 4.8%, 10.1%, respectively; p < 0.001) but not in females (3.4%, 1.9%, 3.0%, 3.9%, 6.2%; p = 0.036). At 1 year, RDW predicted mortality in both males (p < 0.001; 0.5%, 0.4%, 0.8%, 1.7%, and 8.3%) and females (p < 0.001; 0.5%, 2.1%, 3.0%, 4.2%, and 8.8%). Receiver operating characteristic analysis found c = 0.705 in males and c = 0.625 in females at 30 days and c = 0.820 in males and c = 0.723 in females at 1 year. RDW independently predicted mortality in trauma patients at this single Level I trauma center. RDW may reveal underlying health status and be clinically useful for prognostication. The mechanistic relationship between RDW and mortality in trauma remains unknown and should be further evaluated. Prognostic and epidemiological study, level III.

Dietary Intakes and Socioeconomic Factors Are Associated with the Hemoglobin Concentration of Bangladeshi Women

Iron deficiency anemia affects a large number of women in developing countries, especially during child-bearing years. The hemoglobin concentration is useful for identifying iron deficiency anemia. The main objectives of this study were, first, to extend algorithms for calculating bioavailable iron from mixed diets, taking into account the enhancers and inhibitors of iron absorption under alternative assumptions on body iron stores. Second, a comprehensive longitudinal model was developed for the proximate determinants of hemoglobin concentration that included the subjects' dietary intakes, nutritional status, morbidity and socioeconomic factors and the unobserved between-subject differences. The model for hemoglobin concentration was estimated using three repeated observations on 514 free living women in Bangladesh. Socioeconomic factors affecting the iron intake from meat, fish and poultry and from all animal sources were also modeled. The main results were that bioavailable iron, women's height and mid upper arm circumference and intake of iron tablets were significant predictors of hemoglobin concentration. Increases in household incomes were associated with higher intake of iron from meat, fish and poultry and from all animal sources. The algorithms for estimating bioavailable iron showed the importance of assumptions regarding body iron stores and underscored the need to develop suitable algorithms for subjects in developing countries.

The Measurement of Serum Transferrin Receptor

The concentration of the soluble fragment of transferrin receptor in serum is an important new hematological parameter. Clinical and laboratory studies have shown that this serum form of the receptor reflects the total body mass of cellular transferrin receptor, 80% of which is contained in the erythroid marrow. The two disorders that result in an elevation in the serum transferrin receptor are anemias associated with enhanced erythropoiesis and tissue iron deficiency. The concentration of soluble transferrin receptor provides a useful quantitative measure of the erythroid marrow mass and thereby assists clinically in categorizing the type of anemia. The most important clinical use of the serum transferrin receptor is in determining the cause of iron deficient erythropoiesis (that is, identifying iron deficiency anemia whether it occurs alone or in the presence of the anemia of chronic disease). Present evidence supports the routine use of the serum transferrin receptor in the clinical evaluation of anemic patients.

The measurement of serum transferrin receptor.

The concentration of the soluble fragment of transferrin receptor in serum is an important new hematological parameter. Clinical and laboratory studies have shown that this serum form of the receptor reflects the total body mass of cellular transferrin receptor, 80% of which is contained in the erythroid marrow. The two disorders that result in an elevation in the serum transferrin receptor are anemias associated with enhanced erythropoiesis and tissue iron deficiency. The concentration of soluble transferrin receptor provides a useful quantitative measure of the erythroid marrow mass and thereby assists clinically in categorizing the type of anemia. The most important clinical use of the serum transferrin receptor is in determining the cause of iron deficient erythropoiesis (that is, identifying iron deficiency anemia whether it occurs alone or in the presence of the anemia of chronic disease). Present evidence supports the routine use of the serum transferrin receptor in the clinical evaluation of anemic patients.

An Assessment of Dried Blood-Spot Technology for Identifying Iron Deficiency

The present study was undertaken to assess the feasibility of using ferritin and transferrin receptor measurements on dried capillary blood spots to identify iron deficiency (ID) in public health surveys. Measurements on serum and blood spots prepared from venous blood were performed in 71 healthy subjects, 41 of whom were iron-replete and 30 who had ID, either without (n = 20) or with (n = 10) anemia. Parallel measurements were performed on hemolyzed whole blood and washed hemolyzed red blood cells to assess the erythrocyte contribution of ferritin and transferrin receptor to dried blood samples. The concentration of ferritin in dried blood samples was threefold higher than serum assays due to the release of ferritin from hemolyzed erythrocytes, which diminished the usefulness of ferritin measurements for detecting ID. On the other hand, there was negligible erythrocyte contribution to the measurement of transferrin receptor in dried blood spots. The most sensitive parameter in dried blood spots was the ratio of receptor/ferritin, which was suitable for identifying iron-deficiency anemia (IDA), but less reliable than serum assays for detecting milder ID without anemia. We conclude that tandem measurements of serum ferritin and transferrin receptor in dried blood spots can be used to facilitate the identification of IDA in epidemiologic studies.© 1998 by The American Society of Hematology.

An Assessment of Dried Blood-Spot Technology for Identifying Iron Deficiency

The present study was undertaken to assess the feasibility of using ferritin and transferrin receptor measurements on dried capillary blood spots to identify iron deficiency (ID) in public health surveys. Measurements on serum and blood spots prepared from venous blood were performed in 71 healthy subjects, 41 of whom were iron-replete and 30 who had ID, either without (n = 20) or with (n = 10) anemia. Parallel measurements were performed on hemolyzed whole blood and washed hemolyzed red blood cells to assess the erythrocyte contribution of ferritin and transferrin receptor to dried blood samples. The concentration of ferritin in dried blood samples was threefold higher than serum assays due to the release of ferritin from hemolyzed erythrocytes, which diminished the usefulness of ferritin measurements for detecting ID. On the other hand, there was negligible erythrocyte contribution to the measurement of transferrin receptor in dried blood spots. The most sensitive parameter in dried blood spots was the ratio of receptor/ferritin, which was suitable for identifying iron-deficiency anemia (IDA), but less reliable than serum assays for detecting milder ID without anemia. We conclude that tandem measurements of serum ferritin and transferrin receptor in dried blood spots can be used to facilitate the identification of IDA in epidemiologic studies.© 1998 by The American Society of Hematology.