1,140 results match your criteria: "Barretos Cancer Hospital[Affiliation]"

The Mutographs biorepository: A unique genomic resource to study cancer around the world.

Cell Genom

March 2024

Genomic Epidemiology Branch, International Agency for Research on Cancer (IARC/WHO), Lyon, France. Electronic address:

Large-scale biorepositories and databases are essential to generate equitable, effective, and sustainable advances in cancer prevention, early detection, cancer therapy, cancer care, and surveillance. The Mutographs project has created a large genomic dataset and biorepository of over 7,800 cancer cases from 30 countries across five continents with extensive demographic, lifestyle, environmental, and clinical information. Whole-genome sequencing is being finalized for over 4,000 cases, with the primary goal of understanding the causes of cancer at eight anatomic sites.

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Health-Related quality of life by 31-item Cervantes scale in breast cancer survivors undergoing adjuvant endocrine therapy.

Clinics (Sao Paulo)

February 2024

Molecular Biology and Nutrition Research Group, School of Medicine, Federal University of Uberlândia, Uberlândia, MG, Brazil; Nutrition Course, Graduate Program in Health Sciences, School of Medicine, Federal University of Uberlândia, Uberlândia, MG, Brazil. Electronic address:

Introduction: Instruments to manage adverse effects of endocrine therapy with Aromatase inhibitors (AI) may improve adherence and persistence to treatment and Health-Related Quality of Life (HRQL). The 31-item Cervantes Scale (CS-31) is an HRQL questionnaire with particularities of the perimenopausal and postmenopausal period that could be an appropriate instrument to assess HRQL in Breast Cancer (BC) survivors.

Objective: This study aimed to perform additional validation of the CS-31 for BC survivors undergoing adjuvant endocrine therapy.

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Head and neck cancer (HNC) patients suffer from a range of health-related quality of life (HRQoL) issues, but little is known about their long-term HRQoL. This study explored associations between treatment group and HRQoL at least 5 years' post-diagnosis in HNC survivors. In an international cross-sectional study, HNC survivors completed the European Organization for Research and Treatment of Cancer (EORTC) quality of life core questionnaire (EORTC-QLQ-C30) and its HNC module (EORTC-QLQ-H&N35).

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These days, cancer is thought to be more than just one illness, with several complex subtypes that require different screening approaches. These subtypes can be distinguished by the distinct markings left by metabolites, proteins, miRNA, and DNA. Personalized illness management may be possible if cancer is categorized according to its biomarkers.

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Background: Breast cancer (BC) remains a significant health care challenge, and treatment approaches continue to evolve. Among these, neoadjuvant endocrine therapy (NET) has gained prominence, particularly for postmenopausal, hormone-receptor positive, HER2-negative (HR+/HER2-) BC patients. Despite this, a significant gap exists in identifying patients who stand to benefit from NET.

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Evaluation of the Impact of Oral Health on the Daily Activities of Users of the National Health System.

Int J Environ Res Public Health

January 2024

Center for Research and Prevention in Molecular Oncology (CPOM), Barretos Cancer Hospital, Barretos 14784-400, Brazil.

Background: the integration of dentistry services in the Unified Health System in Brazil (SUS) is essential in primary care assistance.

Objective: we aimed to develop a tool for improving demand flowby evaluating the impact of oral health on the daily activities of users of the Family Health Unitusing the Oral Impacts of Daily Performance (OIDP)tool.

Methods: In Barretos, Brazil, a cross-sectional study was conducted at a Family Health Unit (FHU)including patients over 12 years old.

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The treatment landscape of urothelial cancers has evolved in the last decade with the approval of chemotherapy, immune checkpoint inhibitors, targeted therapies, and antibody drug conjugates. Although improvements in response and survival have been achieved with these strategies, in some scenarios their benefit is still questionable. Current efforts to identify prognostic and predictive biomarkers are crucial for better patient selection and treatment outcomes.

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Background: Glioblastoma (GBM) is an aggressive tumor known for its poor prognosis. Despite extensive research into its molecular and clinical aspects, the current management strategies have shown limited efficacy in improving survival rate. Despite some preclinical studies exploring the combination of temozolomide (TMZ) with biguanides such as metformin (MET) and others, the potential benefits of this combination remain uncertain.

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Article Synopsis
  • - The study analyzed neutrophil extracellular traps (NET) and specific salivary cytokines in patients undergoing chemotherapy to examine their links to oral mucositis (OM) and Candida infections.
  • - Among 60 patients, 43.3% experienced OM and 20% had oral candidiasis, with a significant finding that those with OM had different levels of certain cytokines compared to others.
  • - The results suggest that Candida infections can influence cytokine levels and NET formation in patients with chemotherapy-induced OM, even without visible signs of candidiasis.
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Background/aim: This study assessed whether the diagnostic accuracy (DA) of ColonView (CV) fecal immunochemical test (FIT) in detecting colorectal adenoma (CRA) can be improved by the diagnostic models (DM) that include triage and risk features of CRA.

Patients And Methods: A total of 5,090 participants of colorectal neoplasia (CRN) screening were recruited prospectively between January 2014 and December 2016. The CRN cohort of 486 patients included 222 CRA patients and 264 non-CRA patients of whom three consecutive fecal samples were analyzed by two fecal occult blood (FOB) assays (CV FIT test, HemoccultSENSA test).

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Effects of Lactate Transport Inhibition by AZD3965 in Muscle-Invasive Urothelial Bladder Cancer.

Pharmaceutics

November 2023

Life and Health Sciences Research Institute (ICVS), University of Minho, Campus of Gualtar, 4710-057 Braga, Portugal.

The Warburg Effect is characterized by high rates of glucose uptake and lactate production. Monocarboxylate transporters (MCTs) are crucial to avoid cellular acidosis by internal lactate accumulation, being largely overexpressed by cancer cells and associated with cancer aggressiveness. The MCT1-specific inhibitor AZD3965 has shown encouraging results in different cancer models.

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Liquid biopsy is increasingly vital in monitoring neoadjuvant breast cancer treatment. This study collected plasma samples at three time points from participants in the Neoadjuvant Carboplatin in Triple Negative Breast Cancer (NACATRINE), analyzing miRNA expression with NanoString's nCounter Human v3 miRNA assay. In the carboplatin arm, four ct-miRNAs exhibited dynamic changes linked to pathologic complete response, with a combined area under the curve of 0.

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Article Synopsis
  • A study was conducted to examine the gender distribution of ophthalmology award recipients in Canada, focusing on various factors such as research productivity and training level.
  • From 1995 to 2022, only 31% of the 255 award recipients were women, indicating a significant gender imbalance.
  • Women had lower research productivity metrics, with a notably lower median h-index and fewer published documents compared to men, highlighting disparities in recognition and achievement within the field.
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Cancer mortality and premature deaths among hairdressers in Brazil.

Environ Res

March 2024

Environmental and Occupational Health Branch, Public Health Institute, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.

Unlabelled: Hairdresser is an occupation classified by the International Agency for Research on Cancer as probably carcinogenic (Group 2A) for lung and bladder cancer, but evidence is accumulating on its association with other cancer types. To our knowledge, this is the first study aimed to compare the cancer mortality and premature mortality between hairdressers and other workers in Brazil.

Methods: In this exploratory study, information on deaths by selected cancers that occurred in Brazil, from 1996 to 2020, among workers aged 20-70y, with identified occupation was gathered from the Brazilian Mortality Information System.

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Purpose: The purpose of this study was to investigate the impact of the type of data capture on the time and help needed for collecting patient-reported outcomes as well as on the proportion of missing scores.

Methods: In a multinational prospective study, thyroid cancer patients from 17 countries completed a validated questionnaire measuring quality of life. Electronic data capture was compared to the paper-based approach using multivariate logistic regression.

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Background: Epidermal growth factor receptor (EGFR) is frequently activated in head and neck squamous cell carcinoma (HNSCC) and serves as a valuable target for therapy. Despite the availability of the EGFR inhibitors Cetuximab, Afatinib, and Allitinib, there are limited predictive markers for their response. Understanding molecular aberrations in HNSCC could facilitate the identification of new strategies for patient clinical and biological classification, offering novel therapeutic avenues.

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Introduction: Breast disease management has changed over recent decades, related to molecular subtype, oncoplastic surgery and targeted therapies. Nevertheless, literature on Paget's disease of the breast (PDB), initially described as a clinical entity and now considered a multifocal/multicentric disease.

Methods: PDB was classified as clinical in the presence of areolar abnormalities and as subclinical/pathological in all other cases.

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Introduction: The aim of the study was to compare complication rates and hospital costs of myoconjunctival versus conventional enucleation techniques in retinoblastoma.

Methods: This retrospective cohort and cost analysis reviewed patients with retinoblastoma treated by primary or secondary enucleation between 2003 and 2021 and a minimum 6-month follow-up. Cases were reviewed for three postsurgical complications: chronic conjunctivitis, implant exposure/extrusion, and cellulitis.

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Go Wish card game-exploring end-of-life wishes of patients in oncology palliative care: a qualitative study.

Ann Palliat Med

January 2024

Oncology Graduate Program, Barretos Cancer Hospital, Barretos, São Paulo, Brazil; Research Group on Palliative Care and Health-Related Quality of Life (GPQual), Barretos Cancer Hospital, Barretos, São Paulo, Brazil; Breast and Gynecology Division, Department of Clinical Oncology, Barretos Cancer Hospital, Barretos, São Paulo, Brazil.

Background: Among the methods that promote quality of life and care, discussing and remembering end-of-life (EOL) wishes for future care may contribute to decision-making about care and the promotion of a good death. Our aim was to investigate the most significant EOL desires among Brazilian cancer patients receiving palliative care (PC).

Methods: This was an exploratory, descriptive, and qualitative study conducted in a Palliative Care Oncology Unit.

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Functional pri-miR-34b/c rs4938723 and KRAS 3'UTR rs61764370 SNPs: Novel phenotype modifiers in Li-Fraumeni Syndrome?

Gene

March 2024

Post-Graduate Program in Genetics and Molecular Biology, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil; Genomic Medicine Laboratory, Experimental Research Center, Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Rio Grande do Sul, Brazil; Department of Genetics, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil; Medical Genetics Service, HCPA, Porto Alegre, Rio Grande do Sul, Brazil.

Purpose: Li-Fraumeni Syndrome (LFS) is a rare cancer predisposing condition caused by germline pathogenic TP53 variants, in which core tumors comprise sarcomas, breast, brain and adrenocortical neoplasms. Clinical manifestations are highly variable in carriers of the Brazilian germline founder variant TP53 p.R337H, possibly due to the influence of modifier genes such as miRNA genes involved in the regulation of the p53 pathway.

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Penile cancer (PeCa) is a rare tumor, generally associated with socioeconomic conditions in low-income countries. Hence, a delay in diagnosis and treatment leads in more advanced tumors, to higher comorbidity, and mortality. Human papillomavirus (HPV) infection has been identified as one of the major risk factors for PeCa.

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This exploratory analysis of the Neoadjuvant Carboplatin in Triple Negative Breast Cancer (NACATRINE) study aimed to identify the biomarkers of pathological complete response (pCR) in patients with triple-negative breast cancer (TNBC) treated with neoadjuvant chemotherapy (NAC) within the context of a clinical trial. The NACATRINE trial is a phase II, single-center, randomized, open-label clinical trial that investigated the addition of carboplatin to sequential anthracycline- and taxane-based NAC for TNBC. We evaluated the gene expression in untreated samples to investigate its association with pCR, overall survival (OS), and disease-free survival (DFS).

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Article Synopsis
  • * A study in Brazil found that out of 147 NSCLC patients, 8.2% tested positive for NTRK fusions via immunohistochemistry, with two cases confirmed using RNA-based methods.
  • * The study revealed that NTRK fusions are relatively rare in this population and highlighted the effectiveness of RNA-based nCounter for identifying NTRK fusions in small biopsy samples, with a low concordance rate between different testing methods.
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Background/aim: This study assessed the diagnostic accuracy (DA) of the predictive features of colorectal cancer (CRC, predictCRC), triage process (triage), and ColonView (CV) fecal immunochemical test (FIT) in a CRC screening setting. The diagnostic score models (DMs) including predictCRC with triage and CV test were also calculated.

Patients And Methods: The study cohort of 544 patients included 58 CRC patients and 486 non-CRC patients who submitted three consecutive fecal samples for analysis, by two fecal occult blood (FOB) assays (CV FIT test, HemoccultSENSA test).

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Challenges in building radiotherapy capacity: A longitudinal study evaluating eight years of the Brazilian radiotherapy expansion plan.

J Cancer Policy

March 2024

Latin America Cooperative Oncology Group (LACOG), Porto Alegre, Brazil; Division of Cancer Care and Epidemiology, Cancer Research Institute, Queen's University, Kingston, ON, Canada; Department of Oncology, Kingston General Hospital, Queen's University, Kingston, ON, Canada. Electronic address:

Background: In 2012, the Brazilian government launched a radiotherapy (RT) expansion plan (PER-SUS) to install 100 linear accelerators. This study assesses the development of this program after eight years.

Methods: Official reports from the Ministry of Health (MoH) were reviewed.

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