Thalassemia Reports最新文献

{"title":"β Thalassemia Mutation Flow in Indonesia: A Migration Perspective","authors":"Lantip Rujito, Z. Maritska, Abdul Salam Sofro","doi":"10.3390/thalassrep13040022","DOIUrl":"https://doi.org/10.3390/thalassrep13040022","url":null,"abstract":"Indonesia is a large island country with a wide variety of ethnic groups. As part of the thalassemia country belt, Indonesia has alleles that are as distinctive as those found in other parts of Southeast Asia. The journey of ancestors in the prehistoric period and the massive increase in human exchange in the last decade have formed the current population of Indonesia. The mutants of the beta-thalassemia allele brought by those predecessors can be seen from the traces of their journey. This paperdescribes the flow gene according to the type of mutations of beta-thalassemia in the country.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":"67 1","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138999235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amlodipine Therapy in β-Thalassemia Patients: A Systematic Review and Meta-Analysis on Ferritin Levels and Liver MRI T2*","authors":"Aily Aliasgharian, Hossein Karami, Mohammad Zahedi, Reza Jahanshahi, Hossein Bakhtiari-Dovvombaygi, Amirreza Nasirzadeh, Mohammad Naderisorki, M. Kosaryan, Ebrahim Salehifar, Mobin Ghazaiean, Saeid Bitaraf, Hadi Darvishi-Khezri","doi":"10.3390/thalassrep13040021","DOIUrl":"https://doi.org/10.3390/thalassrep13040021","url":null,"abstract":"Background and aim: We conducted a review to determine the efficacy of amlodipine alongside iron chelators on serum ferritin levels and liver T2-weighted magnetic resonance imaging (MRI T2*) in β-thalassemia patients. Methods: Systematic search was conducted in multiple databases, including Web of Science, PubMed, Scopus, Embase, Cochrane Library, ClinicalTrials.gov, the Iranian Registry of Clinical Trials (IRCT), ProQuest, OpenGrey, and Web of Science Conference Proceedings Citation Index. The search was closed in January 2023. Primary outcomes were comprised of liver MRI T2* (millisecond (msec)) and serum ferritin levels (ng/mL). Results: Seven studies (n = 227) were included in the study. The pooled Cohen’s d for serum ferritin was estimated at −0.46, 95% confidence interval (CI) −1.11 to 0.19 and p = 0.16 (I2 86.23%, p < 0.0001). The pooled mean difference for serum ferritin was −366.44 ng/mL, 95% CI −844.94 to 112.05, and p = 0.13 (I2 81.63%, p < 0.0001). After a meta-regression based on the length of using amlodipine, a coefficient for the mean difference was also −23.23 ng/mL and 95% CI −155.21 to 108.75. The coefficient obtained from a meta-regression as per the amlodipine dose at 5 mg/day than 2.5 to 5 mg/day anchored at −323.49 ng/mL and 95% CI −826.14 to 1473.12. A meta-regression according to the baseline values of serum ferritin discovered a coefficient of 1.25 ng/mL and 95% CI 0.15 to 2.35. Based on two included studies (n = 96), the overall Cohen’s d for liver MRI T2* was 2.069, 95% CI −0.896 to 5.035, and p = 0.17 (I2 96.31%, p< 0.0001). The synthesized mean difference for liver MRI T2* was 8.76 msec, 95% CI −4.16 to 21.67, and p = 0.18 (I2 98.38%, p < 0.000). Conclusion: At a very low level of evidence, probably using amlodipine at a dose of 2.5 to 5 mg a day, up to a year, alongside iron chelators slightly decreases serum ferritin levels in iron-overloaded thalassemia cases by nearly 366 ng/mL (23 ng/mL per month). The liver MRI T2* might also rise to 8.76 msec upon co-therapy with amlodipine.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":"26 12","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138980010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association of Bone Disorder and Gene Polymorphism of PPAR-γ Pro12 Ala in Egyptian Children with β-Thalassemia","authors":"Ahmed M. Abdel Hamied, Heba Mostafa Ahmed, Dina H. Eldahshan, Dalia S. Morgan, Abdel Meged A. Abdel Meged, Marwa O. Elgendy, Mohamed S. Imam, Turki A. H. Alotaibi, Majed M. S. Alotaibi, Manal T. N. Alotaibi, Sarah S. S. Alshalan, Sara O. Elgendy","doi":"10.3390/thalassrep13040020","DOIUrl":"https://doi.org/10.3390/thalassrep13040020","url":null,"abstract":"β-thalassemia is a genetic disorder affecting chromosome 16, inherited from one or both parents. In spite of the improved treatment of the hematological disorder and its complications, β-thalassemic patients still exhibit an imbalance in bone mineral turnover, resulting in diminished bone mineral density (BMD), more evident in the lumbar spine. The purpose of this study was to investigate the association between genetic polymorphism of the PPAR-γ gene and the presence of osteopenia or osteoporosis in children with β-thalassemia. This case–control study was conducted on 50 children with β-thalassemia from the pediatric hematology unit of Beni-Suef University Hospital, including 50 healthy children as the control group. The age range was 8 to 18 years. Samples of patients and control subjects were analyzed for the presence of polymorphisms of the PPAR-γ gene and other blood labs. An assay of BMD measure using dual-energy X-ray absorptiometry (DXA) was performed to investigate osteopenia or osteoporosis. Statistical analysis was used to investigate the relationship between the risk of osteopenia or osteoporosis and the presence of PPAR-γ Pro12Ala gene polymorphism. Eighteen (eleven males and seven females) of fifty patients (representing 36% of the patients group) have osteopenia with low bone mineral density (Z-score is −1 or less than 1). There was no statistically significant difference between BMD measurements in males and females. By comparing the frequency of 12 Ala gene polymorphisms between the patient group and the control group, we found that no statistically significant difference was detected. The BMD values were not significantly different between the groups of PPAR-γ Pro12Ala gene polymorphism. In conclusion, decreased BMD levels are frequent in β-thalassemia patients. PPAR-γ Pro12Ala gene polymorphism is not common in Egyptian patients with β-thalassemia. No significant relationship was found between the PPAR-γ Pro12Ala gene polymorphism and low BMD levels or osteopenia in Egyptian β-thalassemia patients. However, further studies on a larger population of Egyptian patients are needed to confirm this finding.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136343828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Infection and Potential Challenge of Childhood Mortality in Sickle Cell Disease: A Comprehensive Review of the Literature from a Global Perspective","authors":"Tarun Sahu, Babita Pande, H. Verma, L. Bhaskar, Meenakshi Sinha, Ramanjan Sinha, Pasupuleti Visweswara Rao","doi":"10.3390/thalassrep13030019","DOIUrl":"https://doi.org/10.3390/thalassrep13030019","url":null,"abstract":"Sickle cell disease (SCD) is a complex genetic disorder associated with multiple clinical manifestations, including increased susceptibility to bacterial and viral infections. This review article presents a comprehensive analysis of the current literature obtained from various online databases focusing on the relationship between SCD and infections caused by specific pathogens, such as pneumonia- and influenza-causing pathogens, Escherichia coli, Staphylococcus aureus, parvovirus, and hepatitis viruses. We discuss the underlying mechanisms that contribute to the increased susceptibility of individuals with SCD to these infections, primarily related to the pathophysiology of variant hemoglobin (HbSS) and its impact on vascular occlusion, hemolysis, functional asplenia, and immune deficiency. Moreover, we highlight the significant burden of infections on SCD patients, particularly children under five years of age, where they are the leading cause of morbidity and mortality. Additionally, we address the challenges faced in attempts for reducing the global mortality rate associated with SCD, particularly in low-income countries, where factors such as increased pathogen exposure, co-morbidities like malnutrition, lower vaccination rates, and limited healthcare facilities contribute to the high disease burden. This review emphasizes the need for targeted interventions, improved healthcare access, vaccination programs, and infection prevention strategies to alleviate the impact of infections on individuals with SCD and reduce the global mortality rates associated with the disease.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42834487","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between Glomerular Filtration Rate and β-Thalassemia Major: A Systematic Review and Meta-Analysis","authors":"S. Khandker, Nurani Jannat, Deepannita Sarkar, Alif Hasan Pranto, Ismoth Ara Hoque, Jemema Zaman, Md. Nizam Uddin, Ehsan Suez","doi":"10.3390/thalassrep13030018","DOIUrl":"https://doi.org/10.3390/thalassrep13030018","url":null,"abstract":"Thalassemia is one of the most prevalent genetic disorders worldwide and has previously been found to have an association with several physiological and organ complications. Several studies have found both its positive and inverse correlation with the glomerular filtration rate (GFR). Therefore, in this meta-analysis, we tried to assess the accurate correlation of β-thalassemia major (β-TM) with GFR. We searched in Google Scholar, PubMed, and ScienceDirect, and from the initial 96 articles, we finally included 15 studies. The quality and publication bias assessment confirmed that all the studies were of high to moderate quality with no publication bias. The main outcome of the mean difference (MD) was −6.94, 95%CI: −20.69, 6.80 (p < 0.00001), which indicated a negative correlation of the GFR with β-TM. The sensitivity analyses found one study to be a slight outlier, and reanalyzing the data excluding that study, an MD was achieved of −16.46, 95%CI: −26.81, −6.11 (p < 0.00001), which provides even stronger support for our main outcome. Our result determined that the GFR is generally higher in healthy people as compared to β-TM patients.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43202158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding the Intricacies of Iron Overload Associated with β-Thalassemia: A Comprehensive Review","authors":"Subhangi Basu, Motiur Rahaman, T. Dolai, P. Shukla, N. Chakravorty","doi":"10.3390/thalassrep13030017","DOIUrl":"https://doi.org/10.3390/thalassrep13030017","url":null,"abstract":"β-thalassemia, a congenital genetic hematological disorder characterized by the decrease or absence of β-globin chains, leads to a decrease in levels of Hemoglobin A. The affected individuals can be categorized into two cohorts based on transfusion dependency: transfusion-dependent thalassemia (TDT) and non-transfusion-dependent thalassemia (NTDT). Remarkably, despite the primary pathology lying in β-globin chain depletion, β-thalassemia also exhibits an intriguing association with iron overload. Iron metabolism, a tightly regulated physiological process, reveals a complex interplay in these patients. Over time, both cohorts of β-thalassemic individuals develop iron overload, albeit through distinct mechanisms. Addressing the diverse complications that arise due to iron overload in β-thalassemic patients, the utilization of iron chelators has gained a lot of significance. With varying efficacies, routes of administration, and modes of action, different iron chelators offer unique benefits to patients. In the Indian context, three commercialized iron chelators have emerged, showcasing a high adherence rate to iron chelator-based treatment regimens among β-thalassemic individuals. In this review, we explore the intriguing connection between β-thalassemia and iron overload, shedding light on the intricate mechanisms at play. We delve into the intricacies of iron metabolism, unveiling the distinct pathways leading to iron accumulation in these patients. Additionally, the therapeutic efficacy of different iron chelators in managing iron overload complications is mentioned briefly, along with the guidelines for their usage in India. Through this comprehensive analysis, we aim to deepen our understanding of β-thalassemia and iron overload, paving the way for optimized treatment strategies. Ultimately, our findings provide valuable insights into improving the care and outcomes of individuals affected by β-thalassemia.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47041354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular Epidemiology of HCV Infection among Multi-Transfused β-Thalassemia Patients in Eastern India: A Six-Year Observation","authors":"Supradip Dutta, A. Biswas, Sagnik Bakshi, Promisree Choudhury, Raina Das, Shreyasi Nath, P. Chowdhury, M. Bhattacharyya, S. Chakraborty, S. Dutta, P. Sadhukhan","doi":"10.3390/thalassrep13030016","DOIUrl":"https://doi.org/10.3390/thalassrep13030016","url":null,"abstract":"Background: HCV infection is very common in multi-transfused β-thalassemia patients who need regular blood transfusions. Aim: The study was conducted to determine the epidemiology of HCV in multi-transfused β-thalassemia patients in West Bengal, India. Methods: Over a span of six years, blood samples were collected from HCV sero-reactive β-thalassemia patients and processed for viral RNA isolation followed by nested RT-PCR for qualitative viremia detection. The HCV genotype was determined by amplifying the partial HCV core gene by nested RT-PCR followed by DNA sequencing and NCBI genotyping tools. Phylogenetic and phylogeographic studies were performed with MEGA-X and BEAST software, respectively. Results: Out of 917 multi-transfused HCV sero-reactive β-thalassemia patients, 598 (65.21%) were HCV RNA positive while 250 (41.80%) had spontaneously cleared the virus. A significant percentage of male patients from rural areas (p = 0.042) and economically backward class (p = 0.002) were at higher risk of HCV infection. Female thalassemia patients and individuals belonging to ages 11–15 years had higher chances of spontaneous clearance. The most prevalent circulatory HCV genotype was 3a (78.26%) followed by 1b (12.04%). Phylogeographic analyses revealed that the 3a strains share genomic similarities with strains from Pakistan, Sri Lanka, and Thailand, whereas the 1b strains share similarities with strains from Thailand, Vietnam, Russia, and China. Uncommon HCV subtypes 3g and 3i were also detected. Conclusion: The high prevalence of HCV infection among β-thalassemia patients of West Bengal, India indicates NAT-based assays should be implemented for HCV screening in donor blood to eliminate HCV by 2030.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49289973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Benign Clone Causing Aplastic Anaemia","authors":"S. McCann, A. Piccin","doi":"10.3390/thalassrep13020015","DOIUrl":"https://doi.org/10.3390/thalassrep13020015","url":null,"abstract":"Severe Aplastic Anaemia (SAA) is a rare benign disease but carries a high-mortality rate unless treated in a specialised centre. Overwhelming laboratory and clinical evidence points to an autoimmune pathogenesis; although, the aetiology remains obscure in the majority of cases. The differential diagnosis in older patients is problematical and a diagnosis of hypoplastic myelodysplasia remains difficult. This review points out the difficulty in diagnosis without a specific test. Future research needs to define a specific diagnostic test and refine therapeutic interventions.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42416385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"HbAdrian (α1:c.251del, p.Leu84Argfs*19)—A Novel Pathogenic Variant in the α1-Globin Gene Associated with Microcytosis from the North of Iran","authors":"H. Jalali, H. Karami, Mahan Mahdavi, M. Mahdavi","doi":"10.3390/thalassrep13020014","DOIUrl":"https://doi.org/10.3390/thalassrep13020014","url":null,"abstract":"Background: Alpha thalassemia is one of the most common human genetic abnormalities. More than 400 different variations of the α-globin protein have been introduced, most of which are not associated with noticeable clinical manifestations. The identification of all variants of Hb in different regions helps in acquiring comprehensive knowledge concerning thalassemia disease, and it can be used in preventive programs as well as prenatal diagnosis (PND). Aims: In the present study, we describe a new α1 gene mutation that leads to a frameshift after codon 83. Methods: As a plan for a national screening program of thalassemia, routine cell blood count (CBC) and Hb capillary electrophoresis tests were applied. After taking written informed consent, genomic DNA was extracted, and, for identifying common Mediterranean α-Globin gene deletion, multiplex Gap-PCR was performed; for detecting other mutations on α- and β-Globin genes, a DNA sequencing method was used. Results: The results of CBC and capillary electrophoresis tests showed microcytosis in a female subject. The sequencing of the α-Globin gene showed that the case is heterozygote for a single-nucleotide deletion at codon 83 of the α1-Globin Gene. We named this mutation Hb Adrian (α1: c.251–T), which is a novel mutation. The mentioned mutation was also detected in the subject’s mother. Conclusions: The introduced mutation (Hb Adrian) leads to a frameshift change that produces a protein with 100 amino acids, which in comparison to a normal α-chain is shorter, and its amino acids are altered after codon 83. This hemoglobin is undetectable via the use of electrophoresis. Although no major hematological abnormalities were observed in the carriers, Hb Adrian should be considered in screening programs to help prevent Hb H disease in high-risk couples.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47025269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What Is the Relevance of Murburn Concept in Thalassemia and Respiratory Diseases?","authors":"Kelath Murali Manoj","doi":"10.3390/thalassrep13020013","DOIUrl":"https://doi.org/10.3390/thalassrep13020013","url":null,"abstract":"Murburn concept is a novel perspective for understanding cellular function, deeming cells as simple chemical engines (SCE) that are powered by redox reactions initiated by effective charge separation (ECS). The 1-electron active diffusible reactive (oxygen) species, or DR(O)S, equilibriums involved in these processes are also crucial for homeostasis, coherently networking cells, and rendering electromechanical functions of sensing and responding to stimuli. This perspective presents the true physiological function of oxygen, which is to enable ECS and the generation of DR(O)S. Therefore, DR(O)S must now to be seen as the quintessential elixir of life, although they might have undesired effects (i.e., the traditionally perceived oxidative stress) when present in the wrong amounts, places and times. We also elaborated that tetrameric hemoglobin (Hb) is actually an ATP-synthesizing murzyme (an enzyme working via murburn concept) and postulated that several post-translational modifications (such as glycation) on Hb could result from murburn activity. Murburn perspective has also enabled the establishment of a facile rationale explaining the sustenance of erythrocytes for 3–4 months, despite their lacking nucleus or mitochondria (to coordinate their various functions and mass-produce ATP, respectively). Although thalassemia has its roots in genetic causation, the new awareness of the mechanistic roles of oxygen-hemoglobin-erythrocyte trio significantly impacts our approaches to interpreting research data and devising therapies for this malady. These insights are also relevant in other clinical manifestations that involve respiratory distress (such as asthma, lung cancer, COVID-19 and pneumonia) and mitochondrial diseases. Herein, these contexts and developments are briefly discussed.","PeriodicalId":22261,"journal":{"name":"Thalassemia Reports","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135389189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}