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thalassemia and hemoglobinopathies

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https://www.readbyqxmd.com/read/28615064/anti-toxoplasma-gondii-antibodies-in-patients-with-beta-hemoglobinopathies-the-first-report-in-the-americas
#1
Marina Neves Ferreira, Claudia Regina Bonini-Domingos, Isabeth Fonseca Estevão, Clarice Lopes de Castro Lobo, Gisele Cristina Souza Carrocini, Aparecida Perpétuo Silveira-Carvalho, Octávio Ricci, Luiz Carlos de Mattos, Cinara Cássia Brandão de Mattos
BACKGROUND: In Brazil, there have been no previous studies of Toxoplasma gondii infection in sickle cell anemia patients and carriers of severe forms of beta-thalassemia. This study evaluated T. gondii infection in patients with beta-hemoglobinopathies. METHODS: A total of 158 samples, 77 (48.7%) men and 81 (51.3%) women, were evaluated. Three groups were formed: G1 (85 patients with sickle cell disease); G2 (11 patients with homozygous beta-thalassemia; G3 (62 patients with heterozygous beta-thalassemia)...
June 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28605432/molecular-diagnosis-of-thalassemias-and-hemoglobinopathies-an-aclps-critical-review
#2
Daniel E Sabath
Objectives: To describe the use of molecular diagnostic techniques for patients with hemoglobin disorders. Methods: A clinical scenario is presented in which molecular diagnosis is important for genetic counseling. Globin disorders, techniques for their diagnosis, and the role of molecular genetic testing in managing patients with these disorders are described in detail. Results: Hemoglobin disorders, including thalassemias and hemoglobinopathies, are among the commonest genetic diseases, and the clinical laboratory is essential for the diagnosis of patients with these abnormalities...
June 12, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28602890/posterior-reversible-encephalopathy-syndrome-after-hematopoietic-cell-transplantation-in-children-with-hemoglobinopathies
#3
Javid Gaziev, Simone Marziali, Katia Paciaroni, Antonella Isgrò, Francesca Di Giuliano, Giorgia Rossi, Marco Marziali, Gioia De Angelis, Cecilia Alfieri, Michela Ribersani, Marco Andreani, Maria Giuseppina Palmieri, Fabio Placidi, Andrea Romigi, Francesca Izzi, Roberto Floris, Nicola Biagio Mercuri
Posterior reversible encephalopathy syndrome (PRES) is a serious adverse event associated with calcineurin inhibitors (CI) used for graft-versus-host disease (GVHD) prophylaxis. We compared the incidence of PRES in children with thalassemia (n=222, 1.4-17.8 years old) versus sickle cell disease (SCD; n=59, 2-17 years old) who underwent hematopoietic cell transplantation (HCT) from HLA-matched siblings or alternative donors and analyzed the risk factors for PRES. Overall, 31 children developed CI-related PRES (11%), including 30 patients with seizures and 1 patient without seizures...
June 5, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28596657/increased-level-of-factor-viii-and-physiological-inhibitors-of-coagulation-in-patients-with-sickle-cell-disease
#4
Mohamed Chekkal, Mohamed Chakib Arslane Rahal, Khedidja Moulasserdoun, Fatima Seghier
Sickle cell disease (SCD) is a hemoglobinopathy characterized by hemolysis, oxidative stress, and vaso-occlusive crises. Thromboembolism also remains a serious complication and probably underestimated in the SCD. Our objective was to seek the existence of hemostasis abnormalities that predispose to thrombosis such as elevation of FVIII and Physiological inhibitors of coagulation deficiency. We studied 81 patients with SCD, including 32 homozygous S/S, 20 double heterozygous S/β thalassemia and 29 heterozygous S/A...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28497434/thalassemia-and-hemoglobinopathies-in-an-ethnic-minority-group-in-central-vietnam-implications-to-health-burden-and-relationship-between-two-ethnic-minority-groups
#5
Nga Thi Nguyen, Kanokwan Sanchaisuriya, Pattara Sanchaisuriya, Hoa Van Nguyen, Hoa Thi Thuy Phan, Goonnapa Fucharoen, Supan Fucharoen
Thalassemia is a genetic condition that can result in long and expensive treatments, and severe thalassemia may lead to death if left untreated. Couples contributing two genes for thalassemia place their children at particular risk for severe thalassemia. Gene frequency of thalassemia varies in Vietnam, but presents remarkably high levels among some ethnic minority groups. Limited information about thalassemia frequency makes prevention and control of thalassemia difficult. This study aimed to determine gene frequency of certain types of thalassemia among 390 women of reproductive age of the Ta-Oi ethnic minority...
May 11, 2017: Journal of Community Genetics
https://www.readbyqxmd.com/read/28483223/temporal-bone-extramedullary-hematopoiesis-as-a-causeof-pediatric-bilateral-conductive-hearing-loss-case-report-and-review-of-the-literature
#6
Alexander Lanigan, M Taylor Fordham
Extramedullary hematopoiesis occurs in children with hemoglobinopathy and chronic anemia. The liver and spleen are often affected first, but other foci can develop to support erythrocyte demand. We report a case of a nine-year-old with beta thalassemia and temporal bone extramedullary hematopoiesis causing ossicular fixation and bilateral conductive hearing loss. There is only one case in the literature describing this phenomenon in pediatric patients, and this is the first case report of bilateral hearing loss from this physiologic phenomenon...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28475397/complex-interaction-of-hb-q-thailand-with-%C3%AE-0-and-%C3%AE-0-thalassemia-in-a-chinese-family
#7
Sheng He, Qian Qin, Li Lin, Qiuli Chen, Shang Yi, Honhwei Wei, Juan Du, Chenguang Zheng, Xiaoxia Qiu, Biyan Chen
Hb Q-Thailand [α74(EF3)Asp→His (α1); HBA1: c.223 G>C] is an abnormal hemoglobin (Hb), variant found mainly in China and Southeast Asian countries. The association of the α(Q)-Thailand allele with other globin gene disorders has important implications in diagnosis. Here, we report a hitherto undescribed condition of patients with a double heterozygosity for Hb Q-Thailand with α(0)-thalassemia (α(0)-thal) and in combination with β(0)-thalassemia (β(0)-thal) in a Chinese family. Our study will provide some clinical manifestations, laboratory diagnosis and genetic counseling for complex hemoglobinopathies...
May 5, 2017: Hemoglobin
https://www.readbyqxmd.com/read/28409222/incidental-splenic-nodules-found-on-mr-imaging-done-for-assessment-of-iron-overload-in-children
#8
Rayan A Ahyad, Christopher Z Lam, Omid Shearkhani, Oscar M Navarro
BACKGROUND: MR imaging is used to assess iron overload in patients with hemoglobinopathies and in those who have undergone multiple blood transfusions. Sometimes splenic nodules are found incidentally on these examinations and this may cause diagnostic uncertainty. OBJECTIVE: To determine the prevalence, imaging characteristics and evolution of splenic nodules found on MR imaging for iron overload evaluation. MATERIALS AND METHODS: Retrospective review of all MR imaging examinations performed for iron overload assessment from 2005 to 2015 in a tertiary pediatric hospital...
April 13, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28404539/a-national-registry-of-thalassemia-in-turkey-demographic-and-disease-characteristics-of-patients-achievements-and-challenges-in-prevention
#9
Yeşim Aydınok, Yeşim Oymak, Berna Atabay, Gönül Aydoğan, Akif Yeşilipek, Selma Ünal, Yurdanur Kılınç, Banu Oflaz, Mehmet Akın, Canan Vergin, Melike Sezgin Evim, Ümran Çalışkan, Şule Ünal, Ali Bay, Elif Kazancı, Dilber Talia İleri, Didem Atay, Türkan Patıroğlu, Selda Kahraman, Murat Söker, Mediha Akcan, Aydan Akdeniz, Mustafa Büyükavcı, Güçhan Alanoğlu, Özcan Bör, Nur Soyer, Nihal Özdemir Karadaş, Ezgi Uysalol, Meral Türker, Arzu Akçay, Süheyla Ocak, Adalet Meral Güneş, Hüseyin Tokgöz, Zümrüt Uysal, Naci Tiftik, Zeynep Karakaş
Turkish Society of Pediatric Hematology set up a National Hemoglobinopathy Registry to demonstrate demographic and disease characteristics of patients, and assessed the efficacy of hemoglobinopathy control program (HCP) over 10 years in Turkey. A total of 2046 patients from 27 Thalassemia Centers were registered in which 1988 were eligible for analysis. This cohort mainly comprised patients with β-thalassemia major (n=1658, 83.4%) and intermedia (n=215, 10.8%). The majority of patients were accumulated into the costal areas of Turkey...
April 13, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28383138/evaluation-of-four-hemoglobin-separation-analyzers-for-hemoglobinopathy-diagnosis
#10
Simon Degandt, Rémy Coens, Barbara Cauwelier, Helena Devos, Michel Langlois, Jan Emmerechts
BACKGROUND: Four automated hemoglobin separation devices are compared in their ability to detect hemoglobinopathies, both in HbA1c and in hemoglobinopathy mode. METHODS: Quality control material and 58 samples, including one heterozygous α-thalassemia sample, six heterozygote β-thalassemia samples and 32 samples with a known hemoglobin variant, were used to assess imprecision of HbF and HbA2 measurements, correlation with the gold standard and sensitivity for detecting β-thalassemia and Hb variants on D-100 (Bio-Rad Laboratories), HA 8180T (Menarini), HLC-723G8 (Tosoh Bioscience) and Capillarys 2 Flex Piercing (Sebia)...
April 6, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28379995/investigation-of-mutations-in-the-hbb-gene-using-the-1-000-genomes-database
#11
Tânia Carlice-Dos-Reis, Jaime Viana, Fabiano Cordeiro Moreira, Greice de Lemos Cardoso, João Guerreiro, Sidney Santos, Ândrea Ribeiro-Dos-Santos
Mutations in the HBB gene are responsible for several serious hemoglobinopathies, such as sickle cell anemia and β-thalassemia. Sickle cell anemia is one of the most common monogenic diseases worldwide. Due to its prevalence, diverse strategies have been developed for a better understanding of its molecular mechanisms. In silico analysis has been increasingly used to investigate the genotype-phenotype relationship of many diseases, and the sequences of healthy individuals deposited in the 1,000 Genomes database appear to be an excellent tool for such analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28377044/gene-therapy-for-%C3%AE-hemoglobinopathies
#12
REVIEW
Marina Cavazzana, Chiara Antoniani, Annarita Miccio
β-Thalassemia and sickle cell disease (SCD) are the world's two most widely disseminated hereditary hemoglobinopathies. β-Thalassemia originated in the Mediterranean, Middle Eastern, and Asian regions, and SCD originated in central Africa. However, subsequent population migration means that these two diseases are now global and thus constitute a growing health problem in many countries. Despite remarkable improvements in medical care for patients with β-hemoglobinopathies, there is still only one definitive treatment option: allogeneic hematopoietic stem cell (HSC) transplantation...
May 3, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28369821/does-the-novel-klf1-gene-mutation-lead-to-a-delay-in-fetal-hemoglobin-switch
#13
Priya Hariharan, Manju Gorivale, Roshan Colah, Kanjaksha Ghosh, Anita Nadkarni
The Kruppel-like factor 1 (KLF1) gene is an essential transcription factor that is required for the proper maturation of the erythroid cells. Recent studies have reported that KLF1 variations are associated with increased fetal hemoglobin (HbF) levels. Here we report a novel KLF1 gene variation codon 211 A→G (c.632 A>G) in a family who was referred for hemoglobinopathy screening. Both parents were classical β-thalassemia trait (mother: HbA2 4.1%, HbF 8.6%; father: HbA2 5.5%, HbF 0.6%) codon 15 G→A heterozygous, and the child was β-thalassemia homozygous...
May 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/28361595/the-molecular-spectrum-of-%C3%AE-and-%C3%AE-thalassemia-mutations-in-non-endemic-umbria-central-italy
#14
Paolo Gorello, Francesco Arcioni, Antonietta Palmieri, Ylenia Barbanera, Laura Ceccuzzi, Cecilia Adami, Mauro Marchesi, Antonella Angius, Olivia Minelli, Marina Onorato, Antonio Piga, Maurizio Caniglia, Cristina Mecucci, Antonella Roetto
The aim of this study was to describe the mutational spectrum of hemoglobinopathies during the period 1988-2015 in Umbria, Central Italy, which has never been considered endemic for these conditions. Twenty-four different β-globin gene mutations were identified in 188 patients and eight different α-globin gene mutations in 74 patients. Sixty percent β-thalassemia (β-thal), 85.0% sickle cell disease, 44.0% Hb S (HBB: c.20A>T)/β-thal and 85.0% compound heterozygotes for hemoglobin (Hb) variant-carrying patients were diagnosed or molecularly characterized in the last 3 years...
November 2016: Hemoglobin
https://www.readbyqxmd.com/read/28351935/bidirectional-immune-tolerance-in-nonmyeloablative-mhc-mismatched-bmt-for-murine-%C3%AE-thalassemia
#15
Shuyu E, Aman Seth, Peter Vogel, Matt Sommers, Taren Ong, Asha B Pillai
Nonmyeloablative conditioning using total lymphoid irradiation (TLI) and rabbit antithymocyte serum (ATS) (the murine preclinical equivalent of antithymocyte globulin [ATG]) facilitates immune tolerance after bone marrow transplantation (BMT) across major histocompatibility complex (MHC) disparities and may be a useful strategy for nonmalignant disorders. We previously reported that donor effector T-cell function and graft-versus-host disease (GVHD) are regulated via recipient invariant natural killer T-cell (iNKT) interleukin-4-driven expansion of donor Foxp3(+) naturally occurring regulatory T cells (Tregs)...
June 1, 2017: Blood
https://www.readbyqxmd.com/read/28333416/severe-transplant-associated-thrombotic-microangiopathy-in-patients-with-hemoglobinopathies
#16
Ghada A Abusin, Rolla Abu-Arja, Rajinder P S Bajwa, Edwin M Horwitz, Jeffery J Auletta, Hemalatha G Rangarajan
Incidence and severity of transplant-associated thrombotic microangiopathy (TA-TMA) in patients with hemoglobinopathies receiving hematopoietic cell transplant is unknown. We report the outcomes for two patients with TA-TMA who received eculizumab. A 2.5-year-old male with sickle cell disease developed TA-TMA-associated pericardial tamponade, severe hypertension, and acute kidney injury 2 months after transplant. A 7-year-old female with β-thalassemia major developed TA-TMA-related acute kidney injury, severe hypertension, and seizures at 6 months after transplant...
March 23, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28276872/a-comprehensive-screening-program-for-%C3%AE-thalassemia-and-other-hemoglobinopathies-in-the-hooghly-district-of-west-bengal-india-dealing-with-21%C3%A2-137-cases
#17
Kallol Kumar Bhattacharyya, Tridip Chatterjee, Ujjalendu Bikash Mondal
We here present a report of population screening programs (January 2012-December 2015) conducted by the Thalassemia Control Unit, Imambara Sadar Hospital, Chinsurah, Hooghly in the Hooghly District of West Bengal, India for prevention of thalassemia. We screened β-thalassemia (β-thal) heterozygotes and homozygotes, and Hb E (HBB: c.79G > A)-β-thal compound heterozygotes. Among 21 137 cases, we found 1968 heterozygotes and 192 homozygotes or compound heterozygotes. Results were evaluated with standard hematological analyses including red cell indices, hemoglobin (Hb) typing and quantification...
November 2016: Hemoglobin
https://www.readbyqxmd.com/read/28270342/cholelithiasis-and-its-complications-in-sickle-cell-disease-in-a-university-hospital
#18
Raquel Alves Martins, Renato Santos Soares, Fernanda Bernadelli De Vito, Valdirene de Fátima Barbosa, Sheila Soares Silva, Helio Moraes-Souza, Paulo Roberto Juliano Martins
INTRODUCTION: The clinical manifestations of sickle cell disease are related to the polymerization of hemoglobin S. The chronic hemolysis caused by this condition often causes the formation of gallstones that can migrate and block the common bile duct leading to acute abdomen. OBJECTIVE: This study aimed to evaluate the profile of patients with sickle cell disease and cholelithiasis. METHODS: Patients with sickle cell disease were separated into groups according to the presence or absence of cholelithiasis...
January 2017: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/28263715/hemoglobinopathies-thalassemias-why-clinical-biochemists-need-to-know-about-them
#19
Trefor Higgins
No abstract text is available yet for this article.
June 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28256747/elbasvir-grazoprevir-for-patients-with-hepatitis-c-virus-infection-and-inherited-blood-disorders-a-phase-iii-study
#20
Christophe Hézode, Massimo Colombo, Marc Bourlière, Ulrich Spengler, Ziv Ben-Ari, Simone I Strasser, William M Lee, Leslie Morgan, Jingjun Qiu, Peggy Hwang, Michael Robertson, Bach-Yen Nguyen, Eliav Barr, Janice Wahl, Barbara Haber, Robert Chase, Rohit Talwani, Vito Di Marco
Direct-acting antiviral agents have not been studied exclusively in patients with inherited blood disorders and hepatitis C virus (HCV) infection. The objective of the randomized, placebo-controlled, phase III C-EDGE IBLD study was to assess the safety and efficacy of elbasvir/grazoprevir (EBR/GZR) in patients with inherited bleeding disorders and HCV infection. One hundred fifty-nine adults with HCV infection and sickle cell anemia, thalassemia, or hemophilia A/B or von Willebrand disease were enrolled at 31 study sites in the United States, Europe, Australia, Canada, Israel, and Thailand...
March 3, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
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