Publications by authors named "Hamerschlak N"

This study analyzed recent changes in the utilization of allogeneic hematopoietic cell transplantation (HCT) for treatment of acute myeloid leukemia (AML), myelodysplastic syndrome (MDS), and myeloproliferative diseases (MPDs) and the survival of HCT recipients ≥60 years of age in Brazil. This retrospective registry study included patients who received a first allogeneic HCT from any donor between 2012 and 2023. Of the 6657 patients, 444 (7%) were 60 years of age or older who received grafts from human leukocyte antigen (HLA)-matched related (42%) or unrelated (20%) donors or HLA-haploidentical donors (32%).

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Natural Killer cells are immune leukocytes required for responses against tumor cells and virus-infected cells. In the last decade, natural killer cells have emerged as promising tools in cancer therapy, and clinical studies on patients treated with natural killer cells have revealed increased rates of disease-free survival. In this article, we review results from the major clinical trials that have used natural killer cells for cancer treatment, including their global distribution.

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Background: T-cell acute lymphoblastic leukemia (T-ALL) remains understudied compared to B-cell ALL, especially in Latin America. Different biology and response to chemotherapy have been described.

Methods: This retrospective multi-site cohort study analyzed data from 152 newly diagnosed T-ALL patients aged 15 years and above, between January 2010 and June 2022.

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Background: Manfredini et al. demonstrate that the new rating protocol, EMOnco, can triage of cancer patients in acute care settings safely, considering their cancer type, stage and treatment histories and oncological emergencies, enabling the appropriate classification from high-risk patients to non-urgent patients.

Background: ■ EMOnco considers variables related to the cancer history and treatment.

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  • Kidney disease is a common issue in patients with multiple myeloma (MM) and can lead to higher morbidity and mortality, with a study analyzing the kidney function of these patients during their first year of treatment.
  • The research was conducted on 167 patients between 2009 and 2019, many of whom had high blood pressure and severe stages of MM, with significant portions having reduced kidney function at diagnosis.
  • Factors like anemia and high protein levels were linked to worse kidney function, but having better initial kidney health and undergoing stem cell transplantation significantly improved recovery over 12 months.
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  • Post-transplant cyclophosphamide (PTCy) is important for the success of haploidentical stem cell transplants and also used with matched donors, but research on its effect on immune reconstitution is limited.
  • A study compared immune recovery in patients receiving either anti-thymocyte globulin (ATG) or PTCy after unrelated donor hematopoietic stem cell transplantation, measuring immune cell counts at various time points.
  • Results showed that ATG led to faster immune recovery initially, but by day 180, PTCy resulted in higher B cell counts, with specific T and NK cell subtypes associated with risk factors for acute and chronic graft-versus-host disease.
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Introduction: The scenario of adult patients with acute lymphoblastic leukemia treated in Brazil has not been well described yet.

Methods: Four hundred patients diagnosed with acute lymphoblastic leukemia from 1981 to 2019, registered in the Brazilian lymphoma and leukemia association (ABRALE) or their caregivers were interviewed by telephone to evaluate patient-reported perceptions of diagnosis, treatment and adverse effects.

Results: Overall, 203 were male with a mean age of 15.

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Natural killer (NK) cells play a crucial role in the immune system's response against cancer. However, the challenge of obtaining the required quantity of NK cells for effective therapeutic response necessitates the development of strategies for their ex vivo expansion. This study aimed to develop a novel feeder cell line, K562.

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Background: Cardiovascular disease and cancer share a common risk factor: chronic stress/allostatic load (AL). A 1-point increase in AL is linked to up to a 30% higher risk of major cardiac events (MACE) in patients with prostate cancer. However, AL's role in MACE in breast cancer, lung cancer, or colorectal cancer remains unknown.

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Background: There is a lack of studies analyzing the association between oral mucositis (OM) and nutritional imbalance in children during hematopoietic stem cell transplantation (HSCT). The aim of this study was to compare the risk factors for OM and nutritional imbalance during HSCT in pediatric patients with nonmalignant diseases (NMD) and malignant diseases (MD).

Methods: Data on age, sex, primary disease, transplantation type, conditioning regimen, GVHD prophylaxis, gastrointestinal toxicity, OM, percent body weight loss or gain, nutritional repositioning, and overall survival (OS) were retrospectively collected from the 132 medical records.

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Introduction: Triple- and quad-refractory multiple myeloma patients usually have an aggressive course and a poor prognosis. Available therapeutic options are scarce.

Methods: The objective of the current study was to evaluate responses and toxicities of VDTPACE or mCBAD with hematopoietic stem-cell support as a bridge to subsequent therapies in patients with refractory/relapsed multiple myeloma.

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Improvements in clinical assessment have occurred since the last published recommendations on the diagnosis and treatment of acute promyelocytic leukemia in 2013. Here, a committee of specialists of the Brazilian Association of Hematology, Hemotherapy and Cellular Therapy presents a comprehensive review on the current knowledge, focusing on the advances in diagnosis, risk assessment, and frontline and salvage therapy. The concept of urgent diagnosis is explored as well as the management of critical situations such as coagulopathy and differentiation syndrome.

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Prevention and treatment protocols for taste changes observed during hematopoietic cell transplantation (HCT) are not well-established. The purpose of this study was to assess the efficacy of photobiomodulation (PBM) in relieving taste changes and preventing lingual papillae atrophy. HCT patients received PBM (n = 42) on the tongue dorsum using an InGaAIP laser (660 nm, 100 mW, 1.

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Background: Patients with hematological malignancies (HM) frequently present thrombocytopenia and higher risk of bleeding. Although transfusion is associated with higher risk of adverse events and poor outcomes, prophylactic transfusion of platelets is a common practice to prevent hemorrhagic complications. Thromboelastometry has been considered a better predictor for bleeding than isolated platelet counts in different settings.

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After initiating combined antiretroviral therapy (cART), individuals with human immunodeficiency virus (HIV) may develop Hodgkin/non-Hodgkin lymphoma due to immune reconstitution inflammatory syndrome (IRIS). This retrospective cohort study evaluated the incidence, clinical features and prognosis of IRIS-associated lymphomas in Brazilian patients. Incidence in 2000-2019 was 9.

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Article Synopsis
  • Splenomegaly is a key issue in patients with myelofibrosis, particularly influencing outcomes after allogeneic hematopoietic cell transplantation (HCT), where it is linked to graft failure.
  • A study involving 59 patients demonstrated that splenic irradiation prior to HCT resulted in significant and rapid reductions in spleen size for 97% of participants, with the median decrease being 5.0 cm.
  • Overall survival rate at three years was 62%, and splenic irradiation was associated with a lower relapse rate compared to standard HCT approaches, indicating its potential as a beneficial treatment option post-JAK inhibitor failure.
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Background: Symptomatic patients with COVID-19 typically have a high SARS-CoV-2 viral load in their saliva. Procedures to reduce the viral load in their oral cavity are important for mitigating the viral transmission.

Methods: This randomized clinical trial investigated the impact of two mouthwashes (0.

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At present, recipients of allogeneic hematopoietic stem-cells are still suffering from recurrent infections after transplantation. Infusion of virus-specific T cells (VST) post-transplant reportedly fights several viruses without increasing the risk of de novo graft-versus-host disease. This study targeted cytomegalovirus (CMV) for the development of an innovative approach for generating a very specific VST product following Good Manufacturing Practices (GMP) guidelines.

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Introduction: Despite knowledge advances on extramedullary haematopoiesis (EMH) in thalassemic patients, the real picture remains an open issue.

Objectives: To assess EMH prevalence in patients with thalassemia major (TM) and intermedia (TI), to describe magnetic resonance imaging (MRI) findings and to explore clinical risk factors.

Methods: In this cross-sectional study, images and clinical records of 184 consecutive patients with thalassemia who underwent T2* MRI between 2004 and 2011 were reviewed.

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Extrapulmonary tuberculosis associated with immune thrombocytopenia (ITP) is extremely rare. A likely association between ITP and pulmonary and lymph node tuberculosis was reported in a 29-year-old male patient. His platelet count decreased to 4,000/µL.

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Purpose: Develop a cancer-specific machine learning (ML) model that accurately predicts 30-day unplanned readmissions in patients with solid tumors.

Methods: The initial cohort included patients 18 years or older diagnosed with a solid tumor. Two distinct cohorts were generated: one with and one without detailed social determinants of health (SDOHs) data.

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