Hydroxyurea-Induced Changes in Hematology, Iron and Renal Profiles in β-Thalassemia Patients
Impact on Hematological Parameters, Iron Status, and Renal Function
Keywords:
Blood cell count, Erythrocyte transfusion, Gender differences, Hydroxyurea, β-thalassemiaAbstract
Background: β-thalassemia is a hereditary blood disorder characterized by reduced hemoglobin production, leading to chronic anemia and various complications. Recent evidence suggests that gender-related differences may influence disease progression and treatment outcomes in β-thalassemia patients. Hydroxyurea has emerged as a promising disease-modifying therapy, but limited research exists on gender-specific treatment responses. This study aimed to evaluate gender-specific hematological effects and safety profiles of Hydroxyurea treatment in pediatric β-thalassemia patients.
Methods: A prospective interventional study was conducted involving 150 β-thalassemia patients aged 0-15 years at Saylani Blood Bank and Transfusion Centre, Karachi. Patients were divided into two groups: males (n=78) and females (n=72). All participants were given Hydroxyurea at 5 mg/kg/day orally till six days per week. Complete blood count parameters, iron profile (ferritin), and kidney function markers (serum urea and creatinine) had been checked pre and post treatment. Statistical analysis was also applied using Student's t-test with significance set at p<0.05.
Results: Hydroxyurea showcased marked therapeutic effectiveness along with notable gender-specific differences in responses. Improvement in hemoglobin levels among women (p=0.001) as well as other hematological parameters was more pronounced compared to men who only had significant improvement in hematocrit (p=0.001) and red blood cell count (p=0.001). Treatment effectively mitigated iron overload as evidenced by persistent ferritin reduction (p=0.001) in both gender groups with differing response patterns. Renal function was either stable or improved on treatment which suggests favorable safety in both groups.
Conclusion: Hydroxyurea proved to be an effective disease-modifying therapy for β-thalassemia providing significant outcomes influenced by patient gender. These findings support the need for gender-specific treatment approaches and monitoring protocols to optimize therapeutic benefits in β-thalassemia management.
References
Muncie HL Jr, Campbell J. Alpha and beta thalassemia. Am Fam Physician. 2009;80(4):339-344.
DOI: https://doi.org/10.3949/ccjm.76a.08107
Weatherall DJ, Clegg JB. The Thalassaemia Syndromes. 4th ed. Oxford: Blackwell Science; 2001.
DOI: https://doi.org/10.1002/9780470696705
Cao A, Galanello R. Beta-thalassemia. Genet Med. 2010;12(2):61-76.
DOI: https://doi.org/10.1097/GIM.0b013e3181cd68ed
Modell B, Darlison M. Global epidemiology of haemoglobin disorders and derived service indicators. Bull World Health Organ. 2008;86(6):480-487.
DOI: https://doi.org/10.2471/blt.06.036673
GBD 2021 Thalassemia Collaborators. Global, regional, and national burden of thalassemia, 1990–2021: a systematic analysis for the global burden of disease study 2021. EClinicalMedicine. 2024;71:102575.
DOI: https://doi.org/10.1016/j.eclinm.2024.102619
Ansari SH, Shamsi TS, Ashraf M, et al. Molecular epidemiology of β-thalassemia in Pakistan: far reaching implications. Int J Mol Med. 2011;27(3):319-328.
DOI: https://doi.org/10.3892/ijmm.2010.573
Nai A, Cordero-Sanchez C, Tanzi E, Pagani A, Silvestri L, Di Modica SM. Cellular and animal models for the investigation of β-thalassemia. Blood Cells, Molecules, and Diseases. 2024 Jan 1;104:102761.
DOI: https://doi.org/10.1016/j.bcmd.2023.102761
Papaioannou I, Siamoglou S, Chassanidis C, et al. Sex-specific transcriptional profiles identified in β-thalassemia patients. Haematologica. 2021;106(4):1071-1081.
DOI: https://doi.org/10.3324/haematol.2020.248013
Meloni A, De Sanctis V, Pistoia L, et al. Gender differences in knowledge and perception of cardiovascular disease among Italian thalassemia major patients. J Clin Med. 2022;11(13):3736.
DOI: https://doi.org/10.3390/jcm11133736
Kyriakou A, Savva SC, Savvides I, Pangalou E, Ioannou YS, Christou S, Skordis N. Gender differences in the prevalence and severity of bone disease in thalassaemia. Pediatric endocrinology reviews: PER. 2008 Oct 1;6:116-22.
DOI: https://doi.org/10.17458/PER.VOL6.2008.KYR
Pepe A, Meloni A, Rossi G, Midiri M, Missere M, Valeri G, Sorrentino F, D'Ascola DG, Spasiano A, Filosa A, Cuccia L. Prediction of cardiac complications for thalassemia major in the widespread cardiac magnetic resonance era: a prospective multicentre study by a multi-parametric approach. European Heart Journal-Cardiovascular Imaging. 2018 Mar 1;19(3):299-309.
DOI: https://doi.org/10.1093/ehjci/jex012
Lal A, Bansal D. Thalassemia: common clinical queries in management. The Indian Journal of Pediatrics. 2020 Jan;87(1):75-81.
DOI: https://doi.org/10.1007/s12098-019-03124-9
Yasara N, Premawardhena A, Mettananda S. A comprehensive review of hydroxyurea for β-haemoglobinopathies: the role revisited during COVID-19 pandemic. Orphanet Journal of Rare Diseases. 2021 Mar 1;16(1):114.
DOI: https://doi.org/10.1186/s13023-021-01757-w
Bauer DE, Kamran SC, Orkin SH. Reawakening fetal hemoglobin: prospects for new therapies for the β-globin disorders. Blood, The Journal of the American Society of Hematology. 2012 Oct 11;120(15):2945-53.
DOI: https://doi.org/10.1182/blood-2012-06-292078
Taher AT, Weatherall DJ, Cappellini MD. Thalassaemia. The Lancet. 2018 Jan 13;391(10116):155-67.
DOI: https://doi.org/10.1016/S0140-6736(17)31822-6
Musallam KM, Taher AT, Cappellini MD, Sankaran VG. Clinical experience with fetal hemoglobin induction therapy in patients with β-thalassemia. Blood, The Journal of the American Society of Hematology. 2013 Mar 21;121(12):2199-212.
DOI: https://doi.org/10.1182/blood-2012-10-408021
Higgs DR, Engel JD, Stamatoyannopoulos G. Thalassaemia. The lancet. 2012 Jan 28;379(9813):373-83.
DOI: https://doi.org/10.1016/S0140-6736(11)60283-3
Borgna‐Pignatti C, Meloni A, Guerrini G, Gulino L, Filosa A, Ruffo GB, Casini T, Chiodi E, Lombardi M, Pepe A. Myocardial iron overload in thalassaemia major. How early to check?. British journal of haematology. 2014 Feb;164(4):579-85.
DOI: https://doi.org/10.1111/bjh.12643
Marsella M, Borgna-Pignatti C, Meloni A, Caldarelli V, Dell'Amico MC, Spasiano A, Pitrolo L, Cracolici E, Valeri G, Positano V, Lombardi M. Cardiac iron and cardiac disease in males and females with transfusion-dependent thalassemia major: a T2* magnetic resonance imaging study. haematologica. 2011 Jan 12;96(4):515.
DOI: https://doi.org/10.3324/haematol.2010.025510
Bordbar MR, Silavizadeh S, Haghpanah S, Kamfiroozi R, Bardestani M, Karimi M. Hydroxyurea Treatment in Transfusion-Dependent β-Thalassemia Patients. Iranian Red Crescent Medical Journal (IRCMJ). 2024 Jul 21;16(6):1-6.
DOI: https://doi.org/10.5812/ircmj.18028
Ansari SH, Shamsi TS, Ashraf M, Perveen K, Farzana T, Bohray M, Erum S, Mehboob T. Efficacy of hydroxyurea in providing transfusion independence in β-thalassemia. Journal of pediatric hematology/oncology. 2011 Jul 1;33(5):339-43.
DOI: https://doi.org/10.1097/MPH.0b013e31821b0770
Iqbal A, Ansari SH, Parveen S, Khan IA, Siddiqui AJ, Musharraf SG. Hydroxyurea treated β-thalassemia children demonstrate a shift in metabolism towards healthy pattern. Scientific reports. 2018 Oct 11;8(1):15152.
DOI: https://doi.org/10.1038/s41598-018-33540-6
Mettananda S, Gibbons RJ, Higgs DR. Understanding α‐globin gene regulation and implications for the treatment of β‐thalassemia. Annals of the New York Academy of Sciences. 2016 Mar;1368(1):16-24.
DOI: https://doi.org/10.1111/nyas.12988
Mahmoud HQ, Mhana RS, Mohammed AA. Therapeutic options and management approach on thalassemia an overview. International Journal of Medical Science and Dental Health. 2024;10(01):17-28.
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