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Open research questions in Hemoglobinopathies and Related Disorders

56 unresolved questions extracted from the limitations and future-work sections of 481 Hemoglobinopathies and Related Disorders papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • There is a need to recognize and treat Hepatitis A infection early in children with sickle cell trait - There is a need to immunize children against Hepatitis A

    Extreme Hyperbilirubinemia with Hepatitis – A Infection in a Child with Sickle Cell Trait · 2026 · DOI

  • Vitamin D deficiency is a significant global health concern. Patients with SCD are disproportionately affected by vitamin D deficiency. There is a need to identify potential markers for vitamin D deficiency in SCD patients.

    Association Between Neutrophil-to-Lymphocyte Ratio and Vitamin D Deficiency in Patients With Sickle Cell Disease: A Cross-Sectional Study in Central Uganda · 2026 · DOI

  • The study identifies a gap in the understanding of the relationship between hematological ratios and vitamin D deficiency in SCD patients. There is a need to investigate the association between NLR and vitamin D deficiency in SCD patients.

    Association Between Neutrophil-to-Lymphocyte Ratio and Vitamin D Deficiency in Patients With Sickle Cell Disease: A Cross-Sectional Study in Central Uganda · 2026 · DOI

  • Iron overload and organ damage are significant challenges in managing beta-thalassemia major. The disease is prevalent in Pakistan, and there is a need for effective management strategies.

    Iron Overload, Chelation Gaps and Marrow Injury in Beta-Thalassemia Major: A Cross-Sectional Study from Khyber Pakhtunkhwa, Pakistan · 2026 · DOI

  • Further studies can investigate the longitudinal relationship between haematological variables and histopathological grades. Research can focus on developing more effective chelation therapies and improving patient outcomes.

    Iron Overload, Chelation Gaps and Marrow Injury in Beta-Thalassemia Major: A Cross-Sectional Study from Khyber Pakhtunkhwa, Pakistan · 2026 · DOI

  • The aetiology of chronic pain in SCD is not well-defined. The traditional understanding of pain in SCD is limited to nociceptive and inflammatory models.

    The Multifaceted Nature of Pain in Sickle Cell Disease: From Molecular Mechanisms to Emerging Therapeutic Frontiers · 2026 · DOI

  • Delayed diagnosis in adulthood due to mild clinical symptoms and subtle hematological abnormalities. The wide clinical variability of sickle cell disease. The need for prompt administration of intravenous antibiotic therapy for patients presenting with fever.

    Incidental discovery of SC heterozygosity: A case report · 2026 · DOI

  • Hemoglobinopathies constitute a major public health challenge in India. The prevalence of hemoglobinopathies varies significantly between tribal and non-tribal populations. There is a need for increased awareness and screening for hemoglobinopathies among non-tribal youth.

    Burden of β-Thalassemia and Sickle Cell Disorders among Non-Tribal Youth in Central Gujarat: Evidence from a Population-Based HPLC Study · 2026 · DOI

  • Diagnostic and therapeutic complexity of thalassemia bone disease. Limited treatment options due to hypersensitivity to deferasirox. Difficulty in controlling iron burden.

    Severe Thalassemia Bone Disease in a Young Woman with Transfusion-Dependent β-Thalassemia Major: Erlenmeyer Flask Deformity, Muscular Hemosiderin Deposition, and Profound Osteoporosis — A Case Report · 2026 · DOI

  • Early diagnosis and comprehensive care for children with SCD in low-resource settings remain limited. SCD is associated with substantial morbidity and mortality, particularly among children in low-resource settings.

    High Burden of Sickle Cell Disease and Trait Among Young Children in Western Tanzania: Evidence from a Cross-Sectional Screening Study · 2026 · DOI

  • Diagnosis of Hb J Meerut hemoglobinopathy. Limited awareness and understanding of hemoglobinopathies. Need for effective preventive strategies.

    Rare Case Report of Hb J Meerut Hemoglobinopathy – a Hospital Insight in the Saurashtra-Kutch Region of Gujarat · 2026 · DOI

  • The diagnosis of compound heterozygous sickle cell-beta thalassemia can be challenging due to overlapping clinical features and laboratory findings with other hematological disorders. There is a need for a systematic approach to diagnose the condition.

    Compound Heterozygous Sickle Cell-Beta Thalassemia Presenting As Chronic Hemolytic Anemia With Microcytosis and Prominent Left Ventricular Trabeculation: A Case Report · 2026 · DOI

  • There is a need to identify parameters associated with adverse outcomes in sickle cell disease. There is a need to evaluate the clinical profile of adult patients with sickle cell disease.

    Clinical Characteristics and Outcome Predictors in Adult Patients with Sickle Cell Disease: A Prospective Observational Study · 2026 · DOI

  • Although the selection of 120 was sufficient for adequate statistical analysis, the sample size limits the generalis- ability of the results to the general population of patients with sickle cell disease. The current study was carried out in a tertiary centre using convenience sampling, and conse- quently, introduced selection bias into this study and thus not accurately represent the population. Patients who pres- ent to tertiary care hospitals tend to have more severe disease manifestations which could have influenced the prevalence of these complications (such as acute chest syndrome and pulmonary hypertension). Therefore, the prevalence of these complications and predictors of mortality differs from that determined based on community-based studies, or within other Indian cohorts with different access to care. As an observational study, the findings demonstrate associa- tions rather than causal relationships, and the exclusion of paediatric patients further limits the generalisability of the results. Larger multicentric studies are needed that sample a greater diversity of the population to better understand the range and outcomes of individuals with SCD within India. Data Availability The data that support the findings of this study are available from the corresponding author upon reasonable request. The data are de-identified and can be shared for academic and research pur- poses in accordance with ethical guidelines and institutional policies.

    Clinical Characteristics and Outcome Predictors in Adult Patients with Sickle Cell Disease: A Prospective Observational Study · 2026 · DOI

  • The abnormal retention of mitochondria in mature red blood cells and reticulocytes is a critical pathological mechanism in SCD that is not fully understood. The role of mitochondria in the pathophysiology of sickle cell disease requires further exploration.

    Evolving Insights into Mitochondrial Presence in RBC in Sickle Cell Disease: Red Blood Cell and Reticulocyte Pathophysiology, Therapeutic Strategies, and Future Directions · 2026 · DOI

  • Broader implications beyond SCD The therapeutic potential of targeting mitochondrial dysfunction in the red blood cells extends beyond SCD to other anemias, such as β−thalassemia, Diamond-Blackfan anemia (DBA), Systemic Lupus Erythematosus (SLE), and hereditary spherocytosis. Diamond-Blackfan anemia (DBA) demonstrates significant RBC mitochondrial dysfunction, substantial inhibition of oxidative phosphorylation [ 42, 79,85 ]. β−thalassemia globin aggregation is mitigated through ubiquitin-mediated proteolysis [ 12, 42 ]. Similarly, in SLE, HIF-mediated metabolic switch and a defective ubiquitinproteasome system leads to the accumulation of red blood cells that retain mitochondria, correlation with disease activity, and promote type I interferon responses [ 81 ]. Parallel mechanisms are observed in pyruvate kinase deficiency (PKD), where impaired HIF transcriptional activity, potentially driven by iron overload, is associated with the downregulation of mitophagy-related genes and persistent mitochondrial presence [ 82 ]. Given that SCD is marked by both chronic hypoxia and iron dysregulation, it is possible that suppressed HIF signaling contributes to the failure of mitochondrial elimination. While these mechanisms have primarily been characterized in PKD and SLE, they suggest a potential HIF-mitophagy axis that could be relevant to the mitochondrial retention and subsequent oxidative damage observed in SCD [ 83 ]. In addition, there may be implications in sickle cell trait [ 42, 84-93 ]. In diseases such as Rett and Pearson, the primary defect is observed in mitochondria. Pearson syndrome, a mitochondrial disorder caused by large-scale deletions in mitochondrial DNA (mtDNA), is characterized by severe sideroblastic anemia. Impaired mtDNA integrity disrupts mitochondrial clearance during erythroid maturation, highlighting the importance of mitochondria-intrinsic signals in red blood cell development [ 32 ]. Rett syndrome, an Xlinked neurodevelopmental disorder caused by Methyl-CpG Binding Protein 2 (MECP2), exhibits mitochondrial dysfunction and impaired mitophagy [ 89, 90 ]. This reflects that mitochondrial retention in mature erythrocytes is not unique to SCD but rather indicates a convergent pathological outcome arising from diverse disruptions in mitophagy signaling, erythroid maturation, and mitochondrial homeostasis, with shared mechanistic features that may inform broadly applicable therapeutic strategies. Evaluating mechanism of erythrocyte mitochondrial retention in SCD Mitochondrial presence in SCD RBCs plays a key role in pathological sickling and oxidative damage rather than being merely a byproduct of stress erythropoiesis.

    Evolving Insights into Mitochondrial Presence in RBC in Sickle Cell Disease: Red Blood Cell and Reticulocyte Pathophysiology, Therapeutic Strategies, and Future Directions · 2026 · DOI

  • Long-term endocrine outcomes remain limited. Conventional therapy is insufficient to prevent long-term endocrine morbidity. Incomplete hemoglobin normalization may limit downstream benefits.

    Growth and Endocrine Preservation in Transfusion-Dependent β-Thalassemia: Updated Pharmacologic and Genomic Interventions · 2026 · DOI

  • Conventional therapy has limitations in preventing long-term endocrine morbidity. Long-term endocrine outcomes remain limited. There is a need for emerging therapies to improve growth and endocrine preservation.

    Growth and Endocrine Preservation in Transfusion-Dependent β-Thalassemia: Updated Pharmacologic and Genomic Interventions · 2026 · DOI

  • Limited epidemiological data are available regarding hemoglobinopathies among non-tribal youth. There is a need for studies to investigate the burden of β-Thalassemia and Sickle Cell Disorders among non-tribal youth in Central Gujarat.

    Burden of β-Thalassemia and Sickle Cell Disorders among Non-Tribal Youth in Central Gujarat: Evidence from a Population-Based HPLC Study · 2026 · DOI

  • There is a lack of research on oral radiographic changes in patients with severe sickle cell disease. The study aims to fill this gap by evaluating specific radiographic features in pediatric patients with SCD.

    Oral Radiographic Changes in Severe Sickle Cell Anemia Patients: A Retrospective Comparative Study · 2026 · DOI

  • The sample size was limited to 100 patients. The study was conducted in a single tertiary hospital, limiting generalizability. The study did not investigate delayed puberty and hormonal factors.

    A study of anthropometric parameters in children with beta thalassemia major · 2026 · DOI

  • Growth failure persists in children with beta thalassemia major despite advances in treatment. There is a need to investigate the relationship between anthropometric parameters and serum ferritin levels.

    A study of anthropometric parameters in children with beta thalassemia major · 2026 · DOI

  • The patient had a documented hypersensitivity to deferasirox, limiting treatment options. The patient's iron burden could not be fully controlled due to the lack of effective chelation therapy.

    Severe Thalassemia Bone Disease in a Young Woman with Transfusion-Dependent β-Thalassemia Major: Erlenmeyer Flask Deformity, Muscular Hemosiderin Deposition, and Profound Osteoporosis — A Case Report · 2026 · DOI

  • There is a need for new therapeutic alternatives to improve pain management in sickle cell anemia patients. Traditional therapies have limitations, and there is a gap in effective treatment options.

    Neuromodulation: a new approach for chronic pain relief in patients with sickle cell anemia · 2026 · DOI

  • There is a need to characterize trends in hemochromatosis-associated mortality among United States residents. There is a lack of understanding of demographic disparities in hemochromatosis-associated mortality. There is a need to provide insights into the clinical context of hemochromatosis-associated mortality.

    Hemochromatosis-Associated Mortality in the United States (1999-2024): A Nationwide Joinpoint Analysis of Trends and Disparities · 2026 · DOI

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56 open questions have been extracted from the limitations and future-work passages of 481 Hemoglobinopathies and Related Disorders papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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