{"title":"Oral calcium supplementation versus placebo in mitigating citrate reactions during apheresis: an open-label randomized control trial.","authors":"Masaya Abe, Keiko Fujii, Nobuharu Fujii, Toshiharu Mitsuhashi, Takuya Fukumi, Yuichi Sumii, Maiko Kimura, Tomohiro Urata, Takumi Kondo, Fumio Otsuka, Yoshinobu Maeda","doi":"10.1016/j.htct.2024.06.010","DOIUrl":"10.1016/j.htct.2024.06.010","url":null,"abstract":"<p><strong>Background: </strong>Citrate-related hypocalcemia is the most common adverse event linked with peripheral blood progenitor cell apheresis. A previous retrospective study highlighted the prophylactic effectiveness of oral calcium drinks before apheresis, supplemented with intravenous calcium gluconate. Consequently, this study is a randomized controlled trial comparing oral calcium with placebo drinks STUDY DESIGN AND METHODS: Healthy donors were randomized to receive either oral calcium (Cohort A) or placebo (Cohort B) drinks. If symptoms emerged, all donors were given calcium drinks to counteract hypocalcemia. The primary endpoint centered on the incidence of Grade 1 or higher citrate-related symptoms. Analyses were performed using the crude model and doubly robust estimation.</p><p><strong>Results: </strong>Forty-two healthy donors participated from January 2021 to July 2022. Case distribution (Cohort A: Cohort B) stood at 3:7 (Grade 1), 2:2 (Grade 2), and 1:0 (Grade 3); no Grade 4 cases were identified. There was no statistical significance in the incidence of Grade 1 or higher and Grade 3 citrate-related symptoms.</p><p><strong>Discussion: </strong>The cumulative incidence of citrate-related side effects was less pronounced than in the previous research. This could stem from absence of blinding, and the decision to administer calcium drinks to the untreated group upon symptom detection. Although preemptive oral calcium intake before peripheral blood progenitor cell apheresis is not wholly effective, providing calcium-rich beverages to symptomatic donors may stave off symptom intensification.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S234-S240"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142368027","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}
Lauro Fabián Amador-Medina, Erick Crespo-Solís, Francisco Javier Turrubiates-Hernández, Karla Edith Santibañez-Bedolla
{"title":"Venetoclax with low-dose cytarabine, a forgotten combination in patients with acute myeloid leukemia ineligible for intensive chemotherapy: a systematic review.","authors":"Lauro Fabián Amador-Medina, Erick Crespo-Solís, Francisco Javier Turrubiates-Hernández, Karla Edith Santibañez-Bedolla","doi":"10.1016/j.htct.2024.07.006","DOIUrl":"10.1016/j.htct.2024.07.006","url":null,"abstract":"<p><strong>Background: </strong>Based on the VIALE-A and VIALE-C studies, the Food and Drug Administration approved venetoclax in 2020 in combination with azacitidine or low-dose cytarabine for the treatment of patients with acute myeloid leukemia ineligible for intensive chemotherapy. After the publication of these studies, venetoclax/azacitidine was assumed to be superior to venetoclax/low-dose cytarabine; however, these studies were not designed to demonstrate superiority between these combinations. Therefore, we conducted a systematic review to describe overall survival, complete remission rate, and composite complete remission rate to assess response of these two regimens in patients with newly diagnosed acute myeloid leukemia who are ineligible for intensive chemotherapy.</p><p><strong>Materials and methods: </strong>The PubMed and Web of Science databases were searched for retrospective studies and complete remission, composite complete remission, and overall survival rates were recorded.</p><p><strong>Results: </strong>Only 11 of the 815 publications identified were eligible to be included n this review, ten studies evaluated the venetoclax/azacitidine combination and one study evaluated the venetoclax/low-dose cytarabine combination. The median overall survival for venetoclax/azacitidine was 10.75 months, whereas for venetoclax/low-dose cytarabine the median overall survival had not been reached at the time of publication. Composite complete remission was 63.3 % for venetoclax/azacitidine and 90 % for venetoclax/low-dose cytarabine. Adverse events were similar for both combinations.</p><p><strong>Conclusions: </strong>A limited number of studies investigating the venetoclax/low-dose cytarabine combination exist. Based on the available data, the superiority of venetoclax/azacitidine over venetoclax/low-dose cytarabine cannot be assumed for all acute myeloid leukemia patients who are ineligible for intensive chemotherapy. Venetoclax/low-dose cytarabine can still be considered as an option for the drug combinations currently under investigation.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S322-S331"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142376481","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}
Rufeng Xie, Yiming Yang, Xueyu Jiang, Li Gao, Juan Sun, Jie Yang
{"title":"The effect of modulating platelet reactive oxygen species by the addition of antioxidants to prevent clearance of cold-stored platelets.","authors":"Rufeng Xie, Yiming Yang, Xueyu Jiang, Li Gao, Juan Sun, Jie Yang","doi":"10.1016/j.htct.2024.09.2479","DOIUrl":"10.1016/j.htct.2024.09.2479","url":null,"abstract":"<p><strong>Background: </strong>It is known that the rapid clearance of cold-stored platelets is attributed to various storage lesions, including an abnormal increase in reactive oxygen species when platelets are exposed to cold temperatures. As an antioxidant, N-acetylcysteine exhibits some significant effects on scavenging various reactive oxygen species and inhibiting cell damage and apoptosis.</p><p><strong>Aims: </strong>This study aimed to investigate the effects of N-acetylcysteine on reducing reactive oxygen species production and protecting cold-stored platelets from phagocytosis and clearance, and to determine the optimal concentration of N-acetylcysteine.</p><p><strong>Methods: </strong>Platelet concentrates were divided into three groups: room-temperature-stored platelets, cold-stored platelets, and cold-stored platelets with the addition of different concentrations of N-acetylcysteine. After five days of storage, reactive oxygen species production, lipid peroxidation levels, activation marker expressions, GPIb/ɑ desialylation with exposure of glycan residues and other quality parameters of platelets were measured and compared between the groups. Phagocytosis of platelets was detected by phorbol 12-myristate 13-acetate-activated THP-1 or Hep G2 cells. Moreover, the recovery of infused platelets was measured in severe combined immunodeficient mice at different timepoints.</p><p><strong>Results: </strong>After 5 days of storage, cytoplasmic reactive oxygen species significantly increased in chilled compared to non-chilled platelets; they were notably reduced with the addition of N-acetylcysteine, particularly at a concentration of 5 mM. Compared with chilled platelets, the P-selectin and phosphatidylserine expressions, as well as exposure of GPIb/ɑ glycan residues, were significantly reduced with 5 mM of N-acetylcysteine. Phagocytosis of platelets by THP-1 or Hep G2 cells was significantly lower in 5 mM of N-acetylcysteine compared to cold-stored platelets without N-acetylcysteine.</p><p><strong>Conclusions: </strong>This study demonstrated correlations between reactive oxygen species production and their pro-oxidant effects on platelet clearance after cold storage. The addition of N-acetylcysteine at an appropriate concentration do not only protects chilled platelets from storage lesions caused by reactive oxygen species overproduction but also prevents platelet phagocytosis in vitro and clearance in vivo, thereby extending circulating time.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S272-S283"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142585411","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":"Development and validation of the self-regulation of blood donation scale for blood donors.","authors":"Fahimeh Ranjbar Kermani, Sedigheh Amini Kafi-Abad, Mahtab Maghsudlu, Kamran Mousavi Hosseini, Fatemeh Mohammadali, Atefeh MohammadJafari","doi":"10.1016/j.htct.2024.09.2482","DOIUrl":"10.1016/j.htct.2024.09.2482","url":null,"abstract":"<p><strong>Background: </strong>Because knowledge of blood donor motivation is crucial in guiding recruitment and retention efforts, the present study aimed at developing and validating a new scale as a multidimensional measure of blood donation motivation from the perspective of the self- determination theory.</p><p><strong>Methods: </strong>This study was conducted in three phases from September 2022 to May 2023. The first phase involved developing a draft scale based on a literature review. In the second phase, face and content validity were performed. The third phase used a cross-sectional design to assess the construct validity and internal consistency of the initial scale following administration to blood donors with a history of at least one previous whole blood donation who visited the largest blood transfusion center in Iran. Of the 420 subjects who were recruited using a mixed sampling method, 343 who fully completed the initial version of the scale were subjected to an construct validity assessment using exploratory factor analysis with Equamax rotation and internal consistency using McDonald's omega coefficient.</p><p><strong>Main results: </strong>The initial version of the scale consisted of 30 survey items with both a content validity ratio and a content validity index of 0.99. Exploratory factor analysis identified 24 items; grouped in six regulation factors (non-regulation, external regulation, introjected regulation, identified regulation, integrated regulation, and intrinsic regulation). The factors demonstrated adequate internal consistency with ω values ranging from 0.60 to 0.79.</p><p><strong>Conclusion: </strong>The present study provides psychometric support for the newly developed questionnaire to evaluate donation motivation among blood donors in Iran or in other countries with similar language, and religious and cultural values.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S299-S305"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142635094","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":"Comparison of plasma cell bone marrow counts by different methods in patients diagnosed with plasma cell disorders.","authors":"Claudia Monteiro, Paulo Campregher, Denise Pasqualin, Nydia Bacal, Liliana Suganuma, Elvira Velloso","doi":"10.1016/j.htct.2024.06.002","DOIUrl":"10.1016/j.htct.2024.06.002","url":null,"abstract":"<p><strong>Introduction: </strong>Plasma cell quantification in bone marrow is important for diagnosis, prognosis, and treatment of plasma cell diseases. It can be performed by several methods such as aspiration, imprint and flow cytometry, and biopsy.</p><p><strong>Objectives: </strong>To compare plasma cell counts at diagnosis of plasma cell diseases using different methods.</p><p><strong>Methods: </strong>An observational study was carried out of laboratory results of adult patients with plasma cell diseases, who underwent aspiration, imprint cytology, flow cytometry (CD38, C138) and biopsy in a single institution between January 2015 and May 2021. The intraclass correlation coefficient was used to assess agreement between different methods with results stratified into three groups: <10%; 10-59% and ≥60% of infiltration.</p><p><strong>Results: </strong>Sixty-seven cases were studied: 59.7% were men with a median age of 70 (range: 32-85) years. The diagnoses were multiple myeloma in 61%, gammopathy of undetermined significance in 25.4%, smoldering myeloma in 6% and other plasma cell dyscrasias in 7.6%. Less than 10% infiltration was found in 32 (47.7%), 35 (52.2%), 44 (65.7%) and 25 (37.3%) of patients, respectively by aspiration, imprint cytology, flow cytometry and biopsy. Infiltration ≥60% was detected in 7 (10.4%), 4 (6.0%), 2 (3.0%) and 21 (31.3%) cases, respectively. There was disagreement between the results in 37 (55.2%) of patients. Of these, 28 had greater infiltration in biopsies. The concordance (Kappa index) of biopsy with aspiration, imprint and flow cytometry was 0.501, 0.408 and 0.17; of aspiration with imprint and flow cytometry, it was 0.738 and 0.541 and between imprint and flow cytometry, it was 0.573%.</p><p><strong>Conclusions: </strong>Only aspiration and imprint cytology results agreed. Biopsy showed greater infiltrations than the other methods, but aspiration, and imprint and flow cytometry provided additional data in the diagnosis and thus should also be performed.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S202-S207"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570807","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}
Mariane Cristina do Nascimento, Diego A Pereira-Martins, João Agostinho Machado-Neto, Eduardo M Rego
{"title":"Acute myeloid leukemia-derived bone marrow mesenchymal cells exhibit improved support for leukemic cell proliferation.","authors":"Mariane Cristina do Nascimento, Diego A Pereira-Martins, João Agostinho Machado-Neto, Eduardo M Rego","doi":"10.1016/j.htct.2023.10.007","DOIUrl":"10.1016/j.htct.2023.10.007","url":null,"abstract":"<p><strong>Introduction: </strong>The bone marrow (BM) microenvironment plays a significant role in acute myeloid leukemia (AML) genesis and there is evidence that BM mesenchymal stromal cells (BMMSCs) can support leukemia progenitor cell proliferation and survival and provide resistance to cytotoxic therapies.</p><p><strong>Hypothesis and method: </strong>Nevertheless, currently unknown are the relevance of the spatial localization of AML cells relative to the BMMSCs and whether BMMSCs from patients with AML and healthy subjects have similar properties. To address these issues, we performed a differential gene expression analysis using RNA-sequencing data generated from healthy donors (HDs) and leukemic BMMSCs.</p><p><strong>Results: </strong>The Gene Set Enrichment Analysis (GSEA) revealed that leukemic BMMSCs were associated with the terms \"positive regulation of cell cycle\", \"angiogenesis\" and \"signaling by the estimated glomerular filtration rate (eGFR)\", whereas healthy donor (HD)-derived BMMSCs were associated with \"programmed cell death in response to the reactive oxygen species (ROS)\", \"negative regulation of the cytochrome C from the mitochondria\" and \"interferon signaling\". Next, we evaluated the mitochondrial superoxide production in AML cells in a co-culture layered model. The superoxide production was reduced in leukemic cells in close contact (adhered to the surface or beneath the cell layer) with BMMSCs, indicating lower oxidative stress.</p><p><strong>Conclusion: </strong>Taken together, our results suggest that AML-derived BMMSCs are transcriptionally rewired and can reduce the metabolic stress of leukemic cells.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S48-S52"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139673914","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":"Predictive factors for engraftment kinetics of autologous hematopoietic stem cells in children.","authors":"Biljana Andrić, Dragana Vujić, Olivera Šerbić, Zorica Radonjić, Marija Simić, Miloš Kuzmanović","doi":"10.1016/j.htct.2024.09.2481","DOIUrl":"10.1016/j.htct.2024.09.2481","url":null,"abstract":"<p><strong>Background: </strong>Engraftment after hematopoietic stem cell transplantation is the recovery rate of neutrophils and platelets. This study aimed to test the impact of the patient's general characteristics, pre-transplantation factors, and quality parameters of hematopietic stem cell products on hematopietic recovery and to define predictive factors for engraftment in children.</p><p><strong>Methods: </strong>This retrospective study included 52 patients aged from 1 to 18 years old treated with autologous transplantation at the Mother and Child Health Care Institute of Serbia \"Dr. Vukan Čupić\" in Belgrade, from January 2013 until December 2018. Data were collected from medical records and apheresis procedure protocols. SPSS 20.0 software package was used for statistical data processing.</p><p><strong>Results: </strong>The median neutrophil engraftment was 18.0 (16.0-22.5) days, while the median platelet engraftment was 11.0 (10.0-18.0) days. Statistically significant correlations were found between neutrophil engraftment and patient's age (p-value = 0.050), body weight (p-value = 0.021), diagnosis (p-value = 0.023), source of stem cells (p-value = 0.001), and the number of CFU-GM/kg (p-value = 0.018). A statistically significant correlation was found between platelet engraftment and the time from diagnosis to the transplantation (p-value = 0.043), source of stem cells (p-value = 0.009), and the number of CD34<sup>+</sup> cells/kg (p-value = 0.014).</p><p><strong>Conclusions: </strong>Predictive factors for hematopoietic recovery in this study were the patient's age, body weight, diagnosis, time from diagnosis to hematopoietic stem cell transplantation, source of hematopietic stem cells, the number of CD34<sup>+</sup> cells/kg, and the number of CFU-GM/kg.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S291-S298"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142775902","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}
Maria Aline Ferreira De Cerqueira, Alaíde Maria Rodrigues Pinheiro, Dorcas Lamounier Costa, Carlos Henrique Nery Costa
{"title":"Association between clinical outcomes, peripheral blood and cytomorphologic features of bone marrow in visceral leishmaniasis.","authors":"Maria Aline Ferreira De Cerqueira, Alaíde Maria Rodrigues Pinheiro, Dorcas Lamounier Costa, Carlos Henrique Nery Costa","doi":"10.1016/j.htct.2023.10.006","DOIUrl":"10.1016/j.htct.2023.10.006","url":null,"abstract":"<p><strong>Introduction: </strong>An intracellular parasite of mononuclear phagocytes, mainly distributed in the bone marrow and the spleen, causes visceral leishmaniasis. Complete blood count (CBC) reveals the poorly understood pathogenesis of anemia, leukopenia and thrombocytopenia. Our study aimed to compare the CBC with bone marrow cytomorphological features and their association with clinical outcomes to clarify this relevant issue.</p><p><strong>Methods: </strong>The CBC and bone marrow of 118 patients were described by two hematologists and compared to check their association with each other and mortality.</p><p><strong>Results: </strong>Peripheral cytopenias were common findings, particularly anemia, as seen in almost all patients. No relationship was found between values of hemoglobin, neutrophils and platelet count with fatal outcomes. The bone marrow was normocellular in 61.9% of the cases. Dysplasia figures were frequent and 49.1% of the samples had dysgranulopoiesis. Additionally, erythroid hyperplasia was found in 72% of the patients with severe anemia. Patients with reduced bone marrow cellularity, erythroid hypercellularity and dyserythropoiesis seem to have a riskier disease.</p><p><strong>Conclusion: </strong>The study results suggest that the bone marrow of patients with visceral leishmaniasis manifests a reactional pattern to the inflammatory event, thereby modulating cytokines and other colony growth factors. This compensatory response may be dysplastic and ineffective and generate peripheral cytopenias of varying intensity. Further studies are needed to clarify the signaling pathways involved, which may be used as therapeutic tools in the future.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S41-S47"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139565137","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":"A comprehensive consolidation of data on the connection between CDKN2A polymorphisms and the susceptibility to childhood acute lymphoblastic leukemia.","authors":"Maryam Aghasipour, Fatemeh Asadian, Seyed Alireza Dastgheib, Abolhasan Alijanpour, Ali Masoudi, Maedeh Barahman, Mohammad Golshan-Tafti, Reza Bahrami, Amirmasoud Shiri, Hossein Aarafi, Kazem Aghili, Hossein Neamatzadeh","doi":"10.1016/j.htct.2024.05.017","DOIUrl":"10.1016/j.htct.2024.05.017","url":null,"abstract":"<p><strong>Background: </strong>Acute lymphoblastic leukemia is the predominant neoplastic ailment in childhood. Prior research has already established noteworthy connections between CDKN2A polymorphisms and susceptibility to this childhood leukemia, however, substantial associations are still awaiting validation. This investigation was undertaken to examine the correlation between CDKN2A polymorphisms and the risk of acute lymphoblastic leukemia in children.</p><p><strong>Methods: </strong>Acquisition of information encompassed the exploration of diverse databases including PubMed, Scopus, EMBASE, and China National Knowledge Infrastructure (CNKI) until January 10, 2024. An estimation of associations was achieved utilizing odds ratios with 95% confidence intervals.</p><p><strong>Results: </strong>A total of 22 case-control studies encompassing 10,203 cases of acute lymphoblastic leukemia and 36,424 healthy controls were included. Within this pool of studies, 14 focused on rs3731217, comprising 5396 cases and 15,787 controls, whereas eight studies investigated rs3731249, comprising 4807 cases and 20,637 controls. The aggregated data showed that the rs3731217 variant offers protection against acute lymphoblastic leukemia. Nevertheless, when subgroups are analyzed according to ethnicity, it becomes clear that the rs3731217 polymorphism significantly influences susceptibility, particularly among individuals of Caucasian and African descent with no such association being observed in children of Asian origin. Nevertheless, the rs3731249 polymorphism displayed a noteworthy correlation with vulnerability to pediatric acute lymphoblastic leukemia.</p><p><strong>Conclusion: </strong>The aggregated data revealed that the rs3731217 variation offers protection against the development of pediatric acute lymphoblastic leukemia and the rs3731249 polymorphism is significantly correlated with susceptibility.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S332-S345"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515298","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}
Marcio Nucci, Celso Arrais-Rodrigues, Maria Daniela Bergamasco, Marcia Garnica, Ana Beatriz Firmato Gloria, Mariana Guarana, Clarisse Machado, Jessica Ramos, Marco Aurelio Salvino, Belinda Simões
{"title":"Management of febrile neutropenia: consensus of the Brazilian Association of Hematology, Blood Transfusion and Cell Therapy - ABHH.","authors":"Marcio Nucci, Celso Arrais-Rodrigues, Maria Daniela Bergamasco, Marcia Garnica, Ana Beatriz Firmato Gloria, Mariana Guarana, Clarisse Machado, Jessica Ramos, Marco Aurelio Salvino, Belinda Simões","doi":"10.1016/j.htct.2024.11.119","DOIUrl":"10.1016/j.htct.2024.11.119","url":null,"abstract":"<p><p>Febrile neutropenia is a major complication of the treatment of patients with hematologic diseases. Recent epidemiologic changes, with an increase in infection caused by drug-resistant bacteria, represent a major challenge for the proper management of febrile neutropenia. The impact of these changes in the epidemiology of infection may vary according to the region. In this document we present recommendations from the Infectious Diseases Committee of the Brazilian Association of Hematology, Blood Transfusion and Cell Therapy (ABHH) for the management of febrile neutropenia in hematologic patients. The consensus was developed by ten experts in the field, using the Delphi methodology. In the document we provide recommendations for the initial workup, prophylaxis, empiric antibiotic and antifungal therapy, modifications in the empiric regimen and criteria for discontinuing antimicrobial therapy.</p>","PeriodicalId":94026,"journal":{"name":"Hematology, transfusion and cell therapy","volume":" ","pages":"S346-S361"},"PeriodicalIF":0.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142857228","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}