Displaying publications 41 - 59 of 59 in total

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  1. Frequencies of A(TA)7TAA, G71R, and G493R mutations of the UGT1A1 gene in the Malaysian population
    Yusoff S, Van Rostenberghe H, Yusoff NM, Talib NA, Ramli N, Ismail NZ, et al.
    Biol. Neonate, 2006;89(3):171-6.
    PMID: 16210851
    Gilbert syndrome is caused by defects in the uridine diphosphate glucuronosyltransferase 1A1 (UGT1A1) gene. These mutations differ among different populations and many of them have been found to be genetic risk factors for the development of neonatal jaundice.
  2. Poor correlation between hemolysis and jaundice in glucose 6-phosphate dehydrogenase-deficient babies
    Jalloh S, Van Rostenberghe H, Yusoff NM, Ghazali S, Nik Ismail NZ, Matsuo M, et al.
    Pediatr Int, 2005 Jun;47(3):258-61.
    PMID: 15910447
    The role of hemolysis in the pathophysiology of neonatal jaundice (NNJ) in patients with glucose 6-phosphate dehydrogenase (G6PD) deficiency has been questioned recently. The aim of the present study was to determine the contribution of hemolysis to the pathophysiology of jaundice in Malay neonates with G6PD deficiency and NNJ.
  3. Molecular heterogeneity of glucose-6-phosphate dehydrogenase deficiency in Malays in Malaysia
    Yusoff NM, Shirakawa T, Nishiyama K, Ghazali S, Ee CK, Orita A, et al.
    Int J Hematol, 2002 Aug;76(2):149-52.
    PMID: 12215013 DOI: 10.1007/BF02982577
    Multiplex polymerase chain reaction (PCR) using multiple tandem forward primers and a common reverse primer (MPTP) was recently established as a comprehensive screening method for mutations in X-linked recessive diseases. In the work reported here, MPTP was used to scan for mutations of the glucose-6-phosphate dehydrogenase (G6PD) gene. Mutations in exons 3,4,5,6,7,9, 11, and 12 of the G6PD gene were screened by MPTP in 93 unrelated Malaysian patients with G6PD deficiency. Of the 93 patients, 80 (86%) had identified mutations. Although all of these were missense mutations, identified nucleotide changes were heterogeneous, with 9 mutations involving various parts of the exons. These 9 mutations were G-to-A nucleotide changes at nucleotide 871 of the G6PD gene (G871A), corresponding to G6PD Viangchan, G6PD Mediterranean (C563T), G6PD Vanua Lava (T383C), G6PD Coimbra (C592T), G6PD Kaiping (G1388A), G6PD Orissa (C131G), G6PD Mahidol (G487A), G6PD Canton (G1376T), and G6PD Chatham (G1003A). Our results document heterogeneous mutations of the G6PD gene in the Malaysian population.
  4. The absence of factor V Leiden mutation in Malays with recurrent spontaneous abortions
    Yusoff NM, Abdullah WZ, Ghazali S, Othman MS, Baba AA, Abdullah N, et al.
    Aust N Z J Obstet Gynaecol, 2002 May;42(2):164-6.
    PMID: 12069143 DOI: 10.1111/j.0004-8666.2002.00164.x
    OBJECTIVES: The objectives of this study were to investigate the prevalence of factor V Leiden mutation in Malay women with recurrent spontaneous abortion and to clarify the contribution of the factor V Leiden mutation to recurrent miscarriages in these women.

    DESIGN: A prospective case control study between June 1999 and April 2000.

    SETTING: Hospital University Science of Malaysia, Kubang Kerian, Kelantan, and Maternal and Child Health Clinic, Pasir Mas, Kelantan, Malaysia.

    SAMPLES: A total of 46 Malay women with a history of three or more first or second trimester miscarriages were studied. The control group consisted of 46 parous women without obstetric complications.

    METHODS: Diagnosis of factor V Leiden mutation was made by examination of factor V Leiden allele product following Mnl I digestion of factor V Leiden alleles amplified by polymerase chain reaction.

    RESULTS: None of the 46 women with recurrent spontaneous abortion carried the mutation. Also, we found no subject carrying the factor V Leiden alleles in the control group.

    CONCLUSION: These results suggest that that there is no association between the factor V Leiden mutation and recurrent spontaneous abortion in the Malay population.
  5. High prevalence of Southeast Asian ovalocytosis in Malays with distal renal tubular acidosis
    Yusoff NM, Van Rostenberghe H, Shirakawa T, Nishiyama K, Amin N, Darus Z, et al.
    J Hum Genet, 2003;48(12):650-653.
    PMID: 14618420 DOI: 10.1007/s10038-003-0095-2
    Southeast Asian ovalocytosis (SAO) is a red blood cell abnormality common in malaria-endemic regions and caused by a 27 nt deletion of the band 3 protein gene. Since band 3 protein, also known as anion exchanger 1, is expressed in renal distal tubules, the incidence of SAO was examined in distal renal tubular acidosis (dRTA) in Malays in Kelantan, Malaysia. Twenty-two patients with dRTA and 50 healthy volunteers were examined for complication of SAO by both morphological and genetic analyses. SAO was identified in 18 of the 22 dRTA patients (81.8%), but only two of the 50 controls (4%). The incidence of SAO was significantly high in those with dRTA (p<0.001), indicating a dysfunctional role for band 3 protein/anion exchanger 1 in the development of dRTA.
  6. The BRCA1 and BRCA2 Genes in Early-Onset Breast Cancer Patients
    Saleem M, Ghazali MB, Wahab MAMA, Yusoff NM, Mahsin H, Seng CE, et al.
    Adv Exp Med Biol, 2020;1292:1-12.
    PMID: 29687286 DOI: 10.1007/5584_2018_147
    Approximately 5-10% of breast cancers are attributable to genetic susceptibility. Mutations in the BRCA1 and BRCA2 genes are the best known genetic factors to date. The goal of this study was to determine the structure and distribution of haplotypes of the BRCA1 and BRCA2 genes in early-onset breast cancer patients. We enrolled 70 patients diagnosed with early-onset breast cancer. A total of 21 SNPs (11 on BRCA1 and 10 on BRCA2) and 1 dinucleotide deletion on BRCA1 were genotyped using nested allele-specific PCR methods. Linkage disequilibrium (LD) analysis was conducted, and haplotypes were deduced from the genotype data. Two tightly linked LD blocks were observed on each of the BRCA1 and BRCA2 genes. Variant-free haplotypes (TAT-AG for BRCA1 and ATA-AAT for BRCA2) were observed at a frequency of more than 50% on each gene along with variable frequencies of derived haplotypes. The variant 3'-subhaplotype CGC displayed strong LD with 5'-subhaplotypes GA, AA, and GG on BRCA1 gene. Haplotypes ATA-AGT, ATC-AAT, and ATA-AAC were the variant haplotypes frequent on BRCA2 gene. Although the clinical significance of these derived haplotypes has not yet been established, it is expected that some of these haplotypes, especially the less frequent subhaplotypes, eventually will be shown to be indicative of a predisposition to early-onset breast cancer.
  7. Human mesenchymal stem cells promote CD34+hematopoietic stem cell proliferation with preserved red blood cell differentiation capacity
    Lau SX, Leong YY, Ng WH, Ng AWP, Ismail IS, Yusoff NM, et al.
    Cell Biol Int, 2017 Jun;41(6):697-704.
    PMID: 28403524 DOI: 10.1002/cbin.10774
    Studies showed that co-transplantation of mesenchymal stem cells (MSCs) and cord blood-derived CD34+hematopoietic stem cells (HSCs) offered greater therapeutic effects but little is known regarding the effects of human Wharton's jelly derived MSCs on HSC expansion and red blood cell (RBC) generation in vitro. This study aimed to investigate the effects of MSCs on HSC expansion and differentiation. HSCs were co-cultured with MSCs or with 10% MSCs-derived conditioned medium, with HSCs cultured under standard medium served as a control. Cell expansion rates, number of mononuclear cell post-expansion and number of enucleated cells post-differentiation were evaluated. HSCs showed superior proliferation in the presence of MSC with mean expansion rate of 3.5 × 108 ± 1.8 × 107after day 7 compared to the conditioned medium and the control group (8.9 × 107 ± 1.1 × 108and 7.0 × 107 ± 3.3 × 106respectively, P 
  8. Fulltext Homozygous Southeast Asian Ovalocytosis in five live-born neonates
    Lavinya AA, Razali RA, Razak MA, Mohamed R, Moses EJ, Soundararajan M, et al.
    Haematologica, 2021 06 01;106(6):1758-1761.
    PMID: 33179475 DOI: 10.3324/haematol.2020.268581
    Not available.
  9. Fulltext Glucose-6-phosphate dehydrogenase deficiency: molecular heterogeneity in southeast Asian countries
    Matsuo M, Nishiyama K, Shirakawa T, Padilla CD, San LP, Suryantoro P, et al.
    Southeast Asian J Trop Med Public Health, 2003;34 Suppl 3:127-9.
    PMID: 15906715
    Glucose-6-phosphate dehydrogenase (G6PD) deficiency is common in malaria endemic regions and is estimated to affect more than 400 million people worldwide. Deficient subjects are mostly asymptomatic but clinical manifestations range from neonatal jaundice due to acute hemolytic anemia to chronic non-spherocytic hemolytic anemia. To date, biochemical parameters allowed more than 400 different G6PD variants to be distinguished thereby suggesting a vast genetic heterogeneity. So far, only a small portion of this heterogeneity has been confirmed at the DNA level with the identification of about 90 different point mutations in the G6PD coding sequence. To determine the molecular background of G6PD deficiency in Southeast Asian countries, we conducted molecular analyses of G6PD patients from the Philippines, Malaysia, Singapore, Vietnam and Indonesia. The most prevalent mutation identified differs from country to country, thus suggesting independent mutational events of the G6PD gene.
  10. Fulltext Anti-tumor activity of Eurycoma longifolia root extracts against K-562 cell line: in vitro and in vivo study
    Al-Salahi OS, Ji D, Majid AM, Kit-Lam C, Abdullah WZ, Zaki A, et al.
    PLoS One, 2014;9(1):e83818.
    PMID: 24409284 DOI: 10.1371/journal.pone.0083818
    Eurycoma longifolia Jack has been widely used in traditional medicine for its antimalarial, aphrodisiac, anti-diabetic, antimicrobial and anti-pyretic activities. Its anticancer activity has also been recently reported on different solid tumors, however no anti-leukemic activity of this plant has been reported. Thus the present study assesses the in vitro and in vivo anti-proliferative and apoptotic potentials of E. longifolia on K-562 leukemic cell line. The K-562 cells (purchased from ATCC) were isolated from patients with chronic myelocytic leukemia (CML) were treated with the various fractions (TAF273, F3 and F4) of E. longifolia root methanolic extract at various concentrations and time intervals and the anti-proliferative activity assessed by MTS assay. Flow cytometry was used to assess the apoptosis and cell cycle arrest. Nude mice injected subcutaneously with 10(7) K-562 cells were used to study the anti-leukemic activity of TAF273 in vivo. TAF273, F3 and F4 showed various degrees of growth inhibition with IC50 values of 19, 55 and 62 µg/ml, respectively. TAF273 induced apoptosis in a dose and time dependent manner. TAF273 arrested cell cycle at G1 and S phases. Intraperitoneal administration of TAF273 (50 mg/kg) resulted in a significant growth inhibition of subcutaneous tumor in TAF273-treated mice compared with the control mice (P = 0.024). TAF273 shows potent anti-proliferative activity in vitro and in vivo models of CML and therefore, justifies further efforts to define more clearly the potential benefits of using TAF273 as a novel therapeutic strategy for CML management.
  11. Fulltext X-linked chronic granulomatous disease in a male child with an X-CGD carrier, Klinefelter brother
    Gill HK, Kumar HC, Cheng CK, Ming CC, Nallusamy R, Yusoff NM, et al.
    Asian Pac J Allergy Immunol, 2013 Jun;31(2):167-72.
    PMID: 23859418 DOI: 10.12932/AP0274.31.2.2013
    BACKGROUND: Chronic granulomatous disease (CGD) is a rare primary immunodeficiency (PID) caused by a dysfunctional respiratory burst enzyme NADPH-oxidase. The concurrence of Klinefelter’s Syndrome (KS) and CGD would be extremely rare.
    OBJECTIVE: We describe the study of a family where the youngest male child had X-linked CGD (X-CGD) while his older brother was both an X-CGD carrier and a Klinefelter.
    METHODS: Flow cytometry was used to study respiratory burst and gp91-phox expression, while genetic investigation was done by RT-PCR, PCR and X-chromosome short tandem repeat (X-STR) analysis.
    RESULTS: The Dihydrorhodamine (DHR) assay showed the patient’s neutrophils failed to produce a respiratory burst, while both the mother and an older brother showed a bimodal response. gp91-phox expression was absent in the patient’s neutrophils, and bimodal in the mother’s and brother’s neutrophils. The patient’s cDNA showed a C>T change at nucleotide 676 of the CYBB gene. The same change was seen in the patient’s gDNA, while the brother and mother were heterozygous, with C and T, in this position. The c.676C>T is a nonsense mutation that leads to premature termination of the gp91-phox protein. The brother karyotyped as 47, XXY and X chromosome analysis showed that he had inherited both his mother’s X chromosomes.
    CONCLUSIONS: This study showed that the patient had gp91-phox deficient CGD while his older brother was a CGD carrier and a Klinefelter, who had inherited both his mother’s X chromosomes. This is the first report of such a concurrence in an individual, and argues for family members to be included in PID studies.
    Key words: Chronic granulomatous disease, CYBB, gp91-phox, Klinefelter’s syndrome NADPHoxidase
  12. Screening for G71R mutation of the UGT1A1 gene in the Javanese-Indonesian and Malay-Malaysian populations
    Sutomo R, Talib NA, Yusoff NM, Van Rostenberghe H, Sadewa AH, Sunarti, et al.
    Pediatr Int, 2004 Oct;46(5):565-9.
    PMID: 15491385
    There are significant differences in the prevalence and severity of neonatal jaundice among various populations. Recently, it has been reported that a mutation of the UGT1A1 gene, glycine to arginine at codon 71 (G71R), is related to the development of neonatal jaundice in East Asian populations. However, whether the G71R mutation contributes to the high incidence of neonatal jaundice in different Asian populations remains unknown. The authors screened for this mutation in the Javanese-Indonesian and Malay-Malaysian populations.
  13. Anti-angiogenic quassinoid-rich fraction from Eurycoma longifolia modulates endothelial cell function
    Al-Salahi OS, Kit-Lam C, Majid AM, Al-Suede FS, Mohammed Saghir SA, Abdullah WZ, et al.
    Microvasc Res, 2013 Nov;90:30-9.
    PMID: 23899415 DOI: 10.1016/j.mvr.2013.07.007
    Targeting angiogenesis could be an excellent strategy to combat angiogenesis-dependent pathophysiological conditions such as cancer, rheumatoid arthritis, obesity, systemic lupus erythematosus, psoriasis, proliferative retinopathy and atherosclerosis. Recently a number of clinical investigations are being undertaken to assess the potential therapeutic application of various anti-angiogenic agents. Many of these angiogenesis inhibitors are directed against the functions of endothelial cells, which are considered as the building blocks of blood vessels. Similarly, roots of a traditional medicinal plant, Eurycoma longifolia, can be used as an alternative treatment to prevent and treat the angiogenesis-related diseases. In the present study, antiangiogenic potential of partially purified quassinoid-rich fraction (TAF273) of E. longifolia root extract was evaluated using ex vivo and in vivo angiogenesis models and the anti-angiogenic efficacy of TAF273 was investigated in human umbilical vein endothelial cells (HUVEC). TAF273 caused significant suppression in sprouting of microvessels in rat aorta with IC50 11.5μg/ml. TAF273 (50μg/ml) showed remarkable inhibition (63.13%) of neovascularization in chorioallantoic membrane of chick embryo. Tumor histology also revealed marked reduction in extent of vascularization. In vitro, TAF273 significantly inhibited the major angiogenesis steps such as proliferation, migration and differentiation of HUVECs. Phytochemical analysis revealed high content of quassinoids in TAF273. Specially, HPLC characterization showed that TAF273 is enriched with eurycomanone, 13α(21)-epoxyeurycomanone and eurycomanol. These results demonstrated that the antiangiogenic activity of TAF273 may be due to its inhibitory effect on endothelial cell proliferation, differentiation and migration which could be attributed to the high content of quassinoids in E. longifolia.
  14. Elevated annexin A5 plasma levels in term pregnancies of M2/ANXA5 carriers
    Ang KC, Kathirgamanathan S, Ch'ng ES, Abdullah WZ, Yusoff NM, Jahnke CM, et al.
    Thromb Res, 2017 08;156:87-90.
    PMID: 28605660 DOI: 10.1016/j.thromres.2017.06.008
  15. Fulltext Effect of Sodium Hydroxide Concentration in Synthesizing Zinc Selenide/Graphene Oxide Composite via Microwave-Assisted Hydrothermal Method
    Lee HK, Talib ZA, Mamat Mat Nazira MS, Wang E, Lim HN, Mahdi MA, et al.
    Materials (Basel), 2019 Jul 18;12(14).
    PMID: 31323741 DOI: 10.3390/ma12142295
    The effect of NaOH solution on the formation of nanoparticles has been the subject of ongoing debate in selenium-based material research. In this project, the robust correlation between the mechanistic growth of zinc selenide/graphene oxide (ZnSe/GO) composite and the concentration of NaOH are elucidated. The ZnSe/GO composite was synthesized via microwave-assisted hydrothermal method and the concentrations of NaOH are controlled at 2 M, 3 M, 4 M, 5 M and 6 M. The XRD spectra show that the crystal phases of the samples exhibited a 100% purity of ZnSe when the concentration of sodium hydroxide (NaOH) was set at 4 M. The further increase of NaOH concentration leads to the formation of impurities. This result reflects the essential role of hydroxyl ions in modifying the purity state of ZnSe/GO composite. The optical band gap energy of ZnSe/GO composite also decreased from 2.68 eV to 2.64 eV when the concentration of NaOH increased from 2 M to 4 M. Therefore, it can be concluded that the optimum concentration of NaOH used in synthesizing ZnSe/GO composite is 4 M. This project provides an alternative green method in the formation of a high purity ZnSe/GO composite.
  16. Fulltext Central resources of variant discovery and annotation and its role in precision medicine
    Halim-Fikri H, Syed-Hassan SR, Wan-Juhari WK, Assyuhada MGSN, Hernaningsih Y, Yusoff NM, et al.
    Asian Biomed (Res Rev News), 2022 Dec;16(6):285-298.
    PMID: 37551357 DOI: 10.2478/abm-2022-0032
    Rapid technological advancement in high-throughput genomics, microarray, and deep sequencing technologies has accelerated the possibility of more complex precision medicine research using large amounts of heterogeneous health-related data from patients, including genomic variants. Genomic variants can be identified and annotated based on the reference human genome either within the sequence as a whole or in a putative functional genomic element. The American College of Medical Genetics and Genomics (ACMG) and the Association for Molecular Pathology (AMP) mutually created standards and guidelines for the appraisal of proof to expand consistency and straightforwardness in clinical variation interpretations. Various efforts toward precision medicine have been facilitated by many national and international public databases that classify and annotate genomic variation. In the present study, several resources are highlighted with recognition and data spreading of clinically important genetic variations.
  17. Existing Tubular Injury in β-Thalassemia Major Patients Receiving Iron Chelating Agents with Normal Creatinine Level in East Java, Indonesia
    Romadhon PZ, Ashariati A, Bintoro SUY, Suryantoro SD, Windradi C, Mahdi BA, et al.
    Hemoglobin, 2024 Sep;48(5):301-307.
    PMID: 39497272 DOI: 10.1080/03630269.2024.2414102
    Patients suffering from thalassemia are recipients of routine transfusions leading to hemosiderosis. Taking iron chelating agents is mandatory. Several studies have shown different results regarding the occurrence of kidney complications in thalassemia patients who received iron-chelating agents. In this study, we were looking for kidney complications by examining human NAG urine/serum and NGAL urine/serum in thalassemia community in East Java community. The study was conducted cross-sectionally in the thalassemia community in East Java with a total sample of 91 patients aged 13-48 years. All thalassemia patients filled in demographic data, transfusion routines, duration of taking iron chelating agents, and length of time diagnosed with thalassemia. Laboratory tests included routine blood tests for ferritin, ureum, serum creatinine, human NAG urine or serum, and human NGAL urine or serum. Comparison tests (t-test, Mann-Whitney, and ANOVA, Kruskal-Wallis) were conducted to see if there were significant differences in the levels of human NAG urine and human NGAL urine serum based on age, sex, blood group, duration of transfusion, routine of transfusion, duration of taking iron chelating agents, and types of iron chelating drugs. Multivariate analysis was conducted to see whether some of these categories were related to abnormalities in human NAG urine or serum and human NGAL urine or serum. All 91 patients had normal creatinine values, yet some had abnormal serum NAG. There is a significant difference in urine human NAG and urine human NGAL levels at ages over 23 years (p = 0.05 and p = 0.01). Significant differences in human NGAL serum were also found in working and student patients (p = 0.028). Serum NGAL also differed in those taking deferasirox (p = 0.030) and significantly different human NGAL urine was also found in iron overload status (Ferritin ≥ 1000 ng.ml) (p = 0.006). There is no difference between human NAG urine/serum and human NGAL urine/serum based on sex, body mass index, blood type, hemoglobin less than 10 g/dl, routine transfusion once a month, duration of using iron chelation for more than 10 years, or splenomegaly status (splenomegaly, splenectomy, or no splenomegaly). The multivariate logistic regression results showed that age above 23 was a factor associated with abnormal urine human NAG levels (aOR = 3.79, 95% CI = 1.08-13.28). Students (aOR = 4.89, 95% CI = 1.48-16.16) with ages above 23 years (aOR = 3.69, 95% CI = 1.09-12.43) showed higher risk for an abnormal serum human NGAL levels. Patients with beta-thalassemia major exhibit noticeable tubular damage. Further research is encouraged to determine other factors behind tubular damage in the thalassemia community, particularly in Indonesia.
  18. Fulltext Genetic analysis of the M2/ANXA5 haplotype as recurrent pregnancy loss predisposition in the Malay population
    Ang KC, Kathirgamanathan S, Ch'ng ES, Lee YY, Roslani AL, Naidu B, et al.
    J Assist Reprod Genet, 2017 Apr;34(4):517-524.
    PMID: 28108842 DOI: 10.1007/s10815-017-0871-0
    PURPOSE: The aim of this study was to evaluate a new predisposition factor, M2/ANXA5 (RPRGL3), in recurrent pregnancy loss (RPL) patients of Malay origin, since it was previously known that the prevalence of this condition is relatively high among the Malay population of Malaysia, where conventional hereditary thrombophilia factors have been generally ruled out.

    METHODS: A total of 232 women who had experienced ≥2 unexplained RPL and 141 available male partners were recruited, with 360 healthy Malay and 166 parous female controls. Prevalence of M2 carriage and RPL odds ratios were calculated in (a) control and patient groups; (b) clinically defined subgroups in categories of pregnancy loss, primary, secondary, and tertiary; and (c) timing of pregnancy loss in early, ≤15th gestation week and "late" fetal losses, and >15th gestation week subgroups.

    RESULTS: Both male and female subjects had similar M2/ANXA5 allele frequencies. The carrier rate of M2/ANXA5 for the general Malay population was 42.2 and 34.9% for parous controls. These carrier rates compared to Malay RPL subjects (52% M2 carriers) resulted in elevated odds ratios (95% confidence interval) of 1.53 (1.1 to 2.1) and 1.97 (1.3 to 3.1) accordingly for early fetal losses. Moreover, exceeding copy numbers of M2/ANXA5 alleles seemed to afflict a greater chance of RPL in couples, especially when both partners were M2 carriers.

    CONCLUSION: This study confirmed the proposed role of M2/ANXA5 as embryonic, genetically associated thrombophilia predisposition factor for early RPL among ethnic Malay of Malaysia.

  19. Fulltext Markers of Renal Complications in Beta Thalassemia Patients with Iron Overload Receiving Chelation Agent Therapy: A Systematic Review
    Romadhon PZ, Ashariati A, Bintoro SUY, Thaha M, Suryantoro SD, Windradi C, et al.
    J Blood Med, 2022;13:725-738.
    PMID: 36467279 DOI: 10.2147/JBM.S387416
    OBJECTIVE: The emerging renal complications in beta-thalassemia patients have raised the global exchange of views. Despite better survival due to blood transfusion and iron chelation therapy, the previously unrecognized renal complication remain a burden of disease affecting this population -the primary concern on how iron overload and chelation therapy correlated with renal impairment is still controversial. Early detection and diagnosis is crucial in preventing further kidney damage. Therefore, a systematic review was performed to identify markers of kidney complications in beta thalassemia patients with iron overload receiving chelation therapy.

    METHODS: Searches of PubMed, Scopus, Science Direct, and Web of Science were conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) to identify studies of literature reporting renal outcome in β-TM patients with iron overload and receiving chelation therapy. The eligible 17 studies were obtained.

    RESULTS: uNGAL/NGAL, uNAG/NAG, uKIM-1 are markers that can be used as predictor of renal tubular damage in early renal complications, while Cystatin C and uβ2MG showed further damage at the glomerular level.

    DISCUSSION AND CONCLUSION: The renal complication in beta-thalassemia patients with iron overload receiving chelating agent therapy may progress to kidney disease. Early detection using accurate biological markers is a substantial issue that deserves further evaluation to determine prevention and management.

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