3,220 results match your criteria: "and Hospital das Clínicas HCFMUSP[Affiliation]"

[Tc]Technetium and Rhenium Dithiocarbazate Complexes: Chemical Synthesis and Biological Assessment.

Pharmaceutics

January 2025

Laboratory of Nuclear Medicine (LIM-43), Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo 05403-911, SP, Brazil.

Background/objectives: Dithiocarbazates (DTCs) and their metal complexes have been studied regarding their property as anticancer activities. In this work, using S-benzyl-5-hydroxy-3-methyl-5-phenyl-4,5-dihydro-1H-pirazol-1-carbodithionate (Hbdtc), we prepared [ReO(bdtc)(Hbdtc)] and [[Tc]TcO(bdtc)(Hbdtc)] complexes for tumor uptake and animal biodistribution studies.

Methods: Re complex was prepared by a reaction of H2bdtc and (NBu)[ReOCl], the final product was characterized by IR, H NMR, CHN, and MS-ESI.

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Expression of ABCB1, ABCC1, and LRP in Mesenchymal Stem Cells from Human Amniotic Fluid and Bone Marrow in Culture-Effects of In Vitro Osteogenic and Adipogenic Differentiation.

Int J Mol Sci

January 2025

Lipids, Oxidation, and Cell Biology Group, Laboratory of Immunology (LIM19), Heart Institute (InCor), Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo (HCFMUSP), São Paulo 05403-900, Brazil.

Mesenchymal stem cells (MSCs) are multipotent cells with the potential to differentiate into various lineages. They have also the potential to protect themselves against harmful stimuli to maintain their functional integrity. Drug resistance-related transporters such as ABCB1 (P-glycoprotein; P-gp), ABCC1 (MRP1; multidrug resistance-related Protein 1), and LRP (lung resistance protein) may protect MSCs against toxic substances such as chemotherapeutic agents.

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: Aging is associated with structural and functional changes in the heart, including hypertrophy, fibrosis, and impaired contractility. Cellular mechanisms such as senescence, telomere shortening, and DNA damage contribute to these processes. Nuclear factor kappa B (NF-κB) has been implicated in mediating cellular responses in aging tissues, and increased NF-κB expression has been observed in the hearts of aging rodents.

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Peritoneal chemotherapy delivery systems for ovarian cancer treatment: systematic review of animal models.

Front Oncol

January 2025

Departamento de Radiologia e Oncologia, Comprehensive Center for Precision Oncology (C2PO), Centro de Investigação Translacional em Oncologia (CTO), Instituto do Cancer do Estado de Sao Paulo, Hospital das Clinicas, Faculdade de Medicina, Universidade de Sao Paulo (HCFMUSP), Sao Paulo, SP, Brazil.

Introduction: Intraperitoneal chemotherapy for ovarian cancer treatment has controversial benefits as most methodologies are associated with significant morbidity. We carried out a systematic review to compare tumor response, measured by tumor weight and volume, between intraperitoneal chemotherapy delivered via drug delivery systems (DDSs) and free intraperitoneal chemotherapy in animal models of ovarian cancer. The secondary aim was to assess the toxicity of DDS-delivered chemotherapy, based on changes in animal body weight.

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Background: Existing risk scores assessing geriatric vulnerability in the emergency department (ED) have shown limited predictive power, especially in diverse populations. We investigated the relationship of a quick and easy-to-administer geriatric vulnerability scoring system with functional decline and mortality in older patients admitted to multiple hospitals through the ED in the United States (US) and Brazil (BR).

Method: Federated, international, multicenter observational study of hospitalized ED patients aged ≥ 65 from US and BR.

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Epidemiology, ventilator management, and outcomes in patients with acute respiratory distress syndrome (ARDS) because of coronavirus disease 2019 (COVID-19) have been described extensively but have never been compared between countries. We performed an individual patient data analysis of four observational studies to compare epidemiology, ventilator management, and outcomes. We used propensity score weighting to control for confounding factors.

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Importance: The Walter Index is a widely used prognostic tool for assessing 12-month mortality risk among hospitalized older adults. Developed in the US in 2001, its accuracy in contemporary non-US contexts is unclear.

Objective: To evaluate the external validity of the Walter Index in predicting posthospitalization mortality risk in Brazilian older adult inpatients.

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Background: Gastric outlet obstruction due to unresectable tumours is usually managed with a gastrojejunostomy. Unfortunately, the unsatisfactory outcomes of this procedure have led to the search for alternatives, including gastric partitioning.

Methods: Monocentric, randomized, parallel, open-label trial that included patients with obstructive, unresectable distal gastric tumours.

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Background: Knee osteoarthritis (KOA) is the most common form of arthritis in adults and a leading cause of years lived with disability, representing a significant burden on healthcare worldwide.

Objective: Describe the structure and educational elements of the Knee-SCHOOL, a brief patient-centered multidisciplinary educational program for patients with KOA.

Design: Observational prospective study.

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Clinical expression of radiographic axial spondyloarthritis and its association with HLA-B27 in European and Ibero-American populations.

J Rheumatol

January 2025

Clementina López-Medina, MD, PhD, Department of Rheumatology, Reina Sofia University Hospital; GC-05 Group, Maimonides Institute for Biomedical Research of Cordoba, IMIBIC; Medical and Surgical Sciences, University of Cordoba, Cordoba, Spain.

Objective: To compare the clinical and sociodemographic characteristics of Ibero-American patients with radiographic axial spondyloarthritis (r-axSpA) to those of European patients, with a particular focus on the influence of HLA-B27.

Methods: This was an observational, cross-sectional, and multicentre study of patients who fulfilled the European Spondyloarthropathy Study Group (ESSG) criteria for SpA from the REGISPONSER and RESPONDIA registries. Univariate and multivariate analyses between European and Ibero-American populations stratified by HLA-B27 status were conducted.

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Outcomes of segmentectomy versus lobectomy in adults with non-cystic fibrosis bronchiectasis.

J Bras Pneumol

January 2025

. Departamento de Cirurgia Torácica, Instituto do Coracao, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, BR.

Objective: Surgical resection remains the gold standard treatment for bronchiectasis in patients who present with hemoptysis or suppuration, as well as in those who do not respond to clinical treatment. We sought to investigate the efficacy of sublobar resection (segmentectomy) and compare it with that of lobar resection (lobectomy) in patients with non-cystic fibrosis bronchiectasis.

Methods: Patients undergoing lobectomy or segmentectomy between 2019 and 2023 were included in the study.

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Expression of MMP-2, MMP-9 and TIMP-2 in pituitary tumors and their relationship with cavernous sinus invasion.

Endocr Oncol

January 2025

Laboratorio de Endocrinologia Celular e Molecular, LIM25, Disciplina de Endocrinologia e Metabologia, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.

Objective: To evaluate the expression of matrix metalloproteinase-2 (MMP-2), MMP-9 and tissue inhibitor of metalloproteinase-2 (TIMP-2) in pituitary tumors and investigate their correlation with circulating plasma proteins and cavernous sinus invasion. In addition, the Ki-67 index was also assessed.

Methods: Seventy-four patients (37 females) with pituitary adenomas were included, with preoperative peripheral blood collected in 29 cases.

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Inframalleolar harvest of the peroneus longus tendon graft: surgical technique.

J ISAKOS

January 2025

Grupo de Joelho, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina da Universidade de São Paulo, Rua Dr. Ovídio Pires de Campos, 333 - Cerqueira Cesar - São Paulo, SP - CEP 05403-010, Brazil; Hospital Sírio Libanês, Rua Dona Adma Jafet, 91 - Bela Vista - São Paulo, SP - CEP 01308-050, Brazil. Electronic address:

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Novel Therapies to Reduce Rehospitalization Risk in Worsening Heart Failure: Systematic Review and Network Meta-Analysis.

JACC Adv

January 2025

Heart Failure Clinics, Instituto do Coracao, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil.

Background: Worsening heart failure (WHF) challenges health care with frequent rehospitalizations and reduced quality of life for patients. Despite therapeutic advances, high rehospitalization risks highlight the urgent need for new treatments.

Objectives: This study evaluated the effectiveness of initiating novel therapies during hospitalization or vulnerable phase for WHF patients to reduce rehospitalization risks and determine the optimal treatment sequence.

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Letter in response to Matos e Souza et al.

J Affect Disord

January 2025

Postgraduate Program in Psychiatry and Behavioral Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Section of Negative Affect and Social Processes, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Departamento de Psiquiatria e Medicina Legal, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil; Child Mind Institute, New York, NY 10022, USA.

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Background: Cytomegalovirus (CMV) infection remains among the leading complications after solid organ transplantation (SOT). Large international surveys mainly focused on high-income countries, detected considerable variability in the management of this infection after SOT. Limited data are available from resource-limited settings.

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Background: Deloyers technique addresses challenges in restoring bowel continuity following extended left hemicolectomies. Despite being first described in 1958, the technique remains underutilized, with limited data on long-term outcomes.

Objective: To evaluate the indications, surgical and functional outcomes of Deloyers technique and review existing literature.

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Large language models (LLMs) offer promising applications in mental health care to address gaps in treatment and research. By leveraging clinical notes and transcripts as data, LLMs could improve diagnostics, monitoring, prevention, and treatment of mental health conditions. However, several challenges persist, including technical costs, literacy gaps, risk of biases, and inequalities in data representation.

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Intensity-modulated radiation therapy for early-stage breast cancer: a systematic review and meta-analysis.

Sao Paulo Med J

January 2025

Professor, Discipline of Evidence-Based Medicine, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (Unifesp), São Paulo, SP, Brazil; Consultant, Centre of Health Technology Assessment, Hospital Sírio-Libanês, São Paulo (SP), Brazil.

Background: Radiation therapy (RT) is a standard treatment for non-metastatic breast cancer and is associated with acute and late toxicities. Intensity-modulated RT (IMRT) may decrease toxicity and is convenient for patients.

Objectives: To assess the efficacy and safety of IMRT in women with early stage breast cancer.

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Tissue Engineering Construct for Articular Cartilage Restoration with Stromal Cells from Synovium vs. Dental Pulp-A Pre-Clinical Study.

Pharmaceutics

December 2024

Sports Medicine Division, Institute of Orthopedics and Traumatology, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo 05403-010, SP, Brazil.

Background/objectives: Cartilage injuries and osteoarthritis are prevalent public health problems, due to their disabling nature and economic impact. Mesenchymal stromal cells (MSCs) isolated from different tissues have the immunomodulatory capacity to regulate local joint environment. This translational study aims to compare cartilage restoration from MSCs from the synovial membrane (SM) and dental pulp (DP) by a tissue-engineered construct with Good Manufacturing Practices.

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EEG Oscillations as Neuroplastic Markers of Neural Compensation in Spinal Cord Injury Rehabilitation: The Role of Slow-Frequency Bands.

Brain Sci

December 2024

Neuromodulation Center and Center for Clinical Research Learning, Spaulding Rehabilitation Hospital and Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA.

Background: Spinal cord injury (SCI) affects approximately 250,000 to 500,000 individuals annually. Current therapeutic interventions predominantly focus on mitigating the impact of physical and neurological impairments, with limited functional recovery observed in many patients. Electroencephalogram (EEG) oscillations have been investigated in this context of rehabilitation to identify effective markers for optimizing rehabilitation treatments.

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Systematic review and meta-analysis of the treatment of hypernatremia in adult hospitalized patients: impact on mortality, morbidity, and treatment-related side effects.

J Crit Care

January 2025

Department of Critical Care, School of Medicine, University of Melbourne, Parkville, Victoria, Australia; Department of Intensive Care, Royal Melbourne Hospital, Parkville, Victoria, Australia; Australian and New Zealand Intensive Care Research Centre, Monash University, Melbourne, Victoria, Australia; Data Analytics Research and Evaluation, Austin Hospital, Melbourne, Australia. Electronic address:

Background: Hypernatremia is relatively common in acutely ill patients and associated with mortality. Guidelines recommend a slow rate of correction (≤ 0.5 mmol/L per hour).

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