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Open research questions in Iron Metabolism and Disorders

528 gap statements mined from Iron Metabolism and Disorders papers in our 7.9M-paper local library, which holds 2,368 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • Harding IH, Ward PGD (2022) Brain susceptibility imaging provides valuable in vivo insights into cerebellar diseases, but biological interpretations remain elusive.

    Quantitative susceptibility mapping of dentate nucleus iron in SCA6 and SCA31: comparison with pathological findings · 2026 · DOI

  • Whether targeted preoperative intravenous iron therapy improves outcomes specifically in this high-risk phenotype—frail geriatric patients with IDA—remains unknown.

    Preoperative Iron Deficiency Anemia and Frailty in Geriatric Colorectal Cancer Surgery: A Prospective Observational Study · 2026 · DOI

  • Together, these studies indicate that the therapeutic consequences of iron deficiency vary according to the outcome examined and remain incompletely defined across the LVEF spectrum. Serum iron and ferritin alone are insufficient to establish these mechanisms.

    Gender Differences in the Clinical and Metabolic Manifestations of Anemia in Chronic Heart Failure · 2026 · DOI

  • Plasmacytoid dendritic cells (pDCs) are specialized antiviral sentinels defined by rapid type I interferon (IFN‑I) production, yet their proteomic organization and metabolic requirements remain incompletely understood.

    Plasmacytoid Dendritic Cells Exhibit High Transferrin Receptor Expression Without Iron Accumulation · 2026 · DOI

  • Another limitation that remains unexplored in the current study is the intricate metabolic transformation of FA within the gut microbiome, where its metabolites exert diverse effects on microbial populations. Furthermore, future studies are needed to investigate the effect of FA on other cellular pathways such as activation of NF-κB and MAPK.

    Diminishing Hepcidin via Reducing IL-6/STAT3 Pathway by Utilizing Ferulic Acid: An In Vitro Study · 2025 · DOI

  • Regrettably, we have no data on SF in low-altitude Tajik populations since most Tajiks live on the high-altitude Pamirs Plateau of China, which prevented us from investigating the effects of high altitude on iron store.

    Serum ferritin associated with atherogenic lipid profiles in a high-altitude living general population · 2025 · DOI

  • Strengthening the role of health workers: Further research is needed to test the effectiveness of regular educational programs that clarify the benefits of IFA supplementation and address concerns about its effects. However, before widespread implementation, further research is necessary to evaluate the effectiveness and mechanisms of such interventions.

    Perceived Barriers and Enablers for Taking Iron–Folic Acid Supplementation Regularly Among Adolescent Girls in Indonesia: A Pilot Study · 2025 · DOI

  • Evidence suggests that iron intake below the recommended 90-day threshold during pregnancy is insufficient to mitigate these adverse outcomes.

    Urban–Rural Disparities in Non-Adherence to Iron Supplementation Among Pregnant Women Aged 15 to 49 in Sub-Saharan Africa · 2025 · DOI

  • Future research should focus on clinical trials to validate these findings in human subjects and explore the potential of microsphere technology for other therapeutic applications. Further investigation into the long-term effects and patient-specific responses to different iron preparations is also warranted to optimize treatment strategies for iron-deficiency anemia.

    Evaluation of Different Polysaccharide–Iron Complex Preparations In Vitro and In Vivo · 2025 · DOI

  • The model also lacks data on public health interventions and health conditions affecting iron metabolism, such as iron supplementation programs or infections, limiting its ability to capture temporal and health-related changes. Additionally, it does not account for environmental and cultural factors, such as dietary habits and food availability, potentially reducing its accuracy in different regions.

    Iron Deficiency: Global Trends and Projections from 1990 to 2050 · 2024 · DOI

  • There is a lack of understanding of iron bioavailability in edible insects and their products. The bioavailability of iron in tempeh made with Tenebrio molitor is unknown. The comparison of iron bioavailability between edible insects, beef, and plant-based meat alternatives has not been studied.

    Comparison of the In Vitro Iron Bioavailability of Tempeh Made with Tenebrio molitor to Beef and Plant-Based Meat Alternatives · 2024 · DOI

  • The literature has focused mostly on young adults and women of reproductive age, with a gap in understanding the association between ID and psychopathology in adolescents. There is a need to examine the moderating effect of race and ethnicity on the association between ID and internalizing symptoms in adolescents.

    Iron Deficiency and Internalizing Symptoms Among Adolescents in the National Health and Nutrition Examination Survey · 2024 · DOI

  • The need for iron supplements with high bioavailability to prevent and treat iron deficiency anemia. The lack of understanding of the impact of iron deficiency anemia on human health, particularly in vulnerable groups.

    Iron Intake and Human Health · 2024 · DOI

  • There is a lack of understanding of the factors associated with gestational anemia and non-anemic iron deficiency during pregnancy. Prior studies have not fully explored the relationship between gestational anemia and maternal characteristics, nutrient intake, and neonatal outcomes.

    Factors Associated with Anemia and Iron Deficiency during Pregnancy: A Prospective Observational Study in Japan · 2024 · DOI

  • The prevalence of anemia remains high despite various interventions. Emerging evidence suggests that imbalances in trace metals may contribute to the increased prevalence of anemia, but the associations between trace metals and anemia risk are not well understood.

    Exploring Associations and Mediating Factors between Multiple Trace Metals with Anemia in US Adults: Insight from NHANES 2017–2020 · 2024 · DOI

  • There was a lack of a uniform definition for metabolic hyperferritinemia until a consensus statement was published recently. Prior to this study, there was limited data on the prevalence and characteristics of metabolic hyperferritinemia in a Central-European cohort.

    Prevalence and Characteristics of Metabolic Hyperferritinemia in a Population-Based Central-European Cohort · 2024 · DOI

  • The paper discusses the need for effective treatment of iron deficiency and iron deficiency anemia in reproductive-age women, particularly in cases where oral iron supplementation is not effective.

    Is It Time to Alter the Standard of Care for Iron Deficiency/Iron Deficiency Anemia in Reproductive-Age Women? · 2024 · DOI

  • This work addresses an important gap in understanding how injectable iron can be used to improve sow iron status before farrowing and whether these improvements translate into reproductive benefits under commercial conditions.

    Effects of early gestational parenteral iron administration on maternal iron biomarkers and reproductive performance in sows under commercial conditions · 2026 · DOI

  • Its clinical significance therefore remains uncertain and should not be interpreted as evidence of superior inflammatory control with intravenous iron.

    Effects of Intravenous Versus Oral Iron Replacement on Inflammatory Markers and Serum Uric Acid in Premenopausal Women with Iron Deficiency: A Prospective Study · 2026 · DOI

  • Anemia in India is shaped by intersecting socio-economic inequalities; however, its relationship with multidimensional deprivation remains insufficiently understood.

    From Deprivation to Deficiency: Examining the Nexus Between Multidimensional Poverty and Anemia in India · 2026 · DOI

  • Beyond ALD, altered erythrocyte turnover may represent a common and previously underrecognized pathogenic mechanism across diverse liver diseases, including NAFLD/MASLD and Wilson disease, and become an increasingly self-amplifying driver as liver disease advances.

    The Red Blood Cell–Liver Axis: A New Framework for Iron Homeostasis and Liver Biology · 2026 · DOI

  • Investigate the effects of different cooking methods on iron bioavailability. Examine the iron bioavailability of other insect-based foods. Study the effects of iron inhibitors and enhancers on iron bioavailability in different food matrices.

    Comparison of the In Vitro Iron Bioavailability of Tempeh Made with Tenebrio molitor to Beef and Plant-Based Meat Alternatives · 2024 · DOI

  • While we used a time-varying analysis, we did not account for disease duration as knowing the start of anemia is inherently challenging in real-world data.

    Increased fracture risk associated with iron-deficiency anemia: a population-based propensity score matched cohort study · 2026 · DOI

  • The complex relationships between trace metals and anemia risk - The potential mediating roles of iron status and inflammation in these associations - The need to identify novel risk factors for developing more effective anemia prevention…

    Exploring Associations and Mediating Factors between Multiple Trace Metals with Anemia in US Adults: Insight from NHANES 2017–2020 · 2024 · DOI

  • The RAPIDIRON trial is designed to assess the hematologic and clinical differences between pregnant women who are infused with one of two different single-dose IV iron formulations, - An economic analysis is being conducted to determine the differential costs based on the mode of delivery, - Future studies should investigate the long-term effects of ID and IDA on maternal and fetal health, - Future studies should…

    Is It Time to Alter the Standard of Care for Iron Deficiency/Iron Deficiency Anemia in Reproductive-Age Women? · 2024 · DOI

Most-cited papers in Iron Metabolism and Disorders

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Open questions raised by papers listed on this page include: (1) Harding IH, Ward PGD (2022) Brain susceptibility imaging provides valuable in vivo insights into cerebellar diseases, but biological interpretations remain elusive (“Quantitative susceptibility mapping of dentate nucleus iron in SCA6 and SCA31:…”, 2026); (2) Whether targeted preoperative intravenous iron therapy improves outcomes specifically in this high-risk phenotype—frail geriatric patients with IDA—remains unknown (“Preoperative Iron Deficiency Anemia and Frailty in Geriatric Colorectal Cancer…”, 2026); (3) Plasmacytoid dendritic cells (pDCs) are specialized antiviral sentinels defined by rapid type I interferon (IFN‑I) production, yet their proteomic organization and metabolic requirements remain incompletely understood (“Plasmacytoid Dendritic Cells Exhibit High Transferrin Receptor Expression…”, 2026); (4) Anemia in India is shaped by intersecting socio-economic inequalities; however, its relationship with multidimensional deprivation remains insufficiently understood (“From Deprivation to Deficiency: Examining the Nexus Between Multidimensional…”, 2026); (5) Future studies are needed to investigate the effect of FA on other cellular pathways such as activation of NF-κB and MAPK (“Diminishing Hepcidin via Reducing IL-6/STAT3 Pathway by Utilizing Ferulic Acid:…”, 2025). 528 gap statements have been mined from Iron Metabolism and Disorders papers in our 7.9M-paper local library, which holds 2,368 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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