4 resultados
06/nov/2024
DOI: 10.31744/einstein_journal/2024RW0611
ABSTRACT Objective: MicroRNAs are small non-coding RNAs that are abundantly expressed in various biofluids, making them promising candidates for cancer biomarkers. This review aims to present current evidence on the use of miRNA as biomarkers for the non-invasive diagnosis of bladder cancer. Methods: A systematic literature review, using the Medline database, was performed in July 2022 according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. All articles were required to satisfy the risk-of-bias assessment using the Joanna […]
Palavras-chave: Detecção precoce de câncer; Niomarkers; Neoplasias da bexiga urinária
19/abr/2023
19/abr/2023
DOI: 10.31744/einstein_journal/2023AO0109
Highlights Twenty-eight cases of bladder squamous cell carcinoma cases were evaluated for p16, p53, p63 immunohistochemistry, and HPV PCR. Neither direct HPV detection nor its indirect marker (p16) was identified in most cases. Decision trees constructed described the relationships of a variety of clinicopathological features with high classification accuracy. ABSTRACT Objective To investigate the expression of human papillomavirus (HPV), p16, p53, and p63 in non-schistosomiasis-related squamous cell carcinoma of the bladder and to develop an accurate and automated tool […]
Palavras-chave: Algorithms; Carcinoma de células escamosas; Human papillomavirus 16; Human papillomavirus 63; Human papillomavirus type 53; Machine learning; Papillomaviridae; Infecções por papillomavírus; Neoplasias da bexiga urinária
22/mar/2022
22/mar/2022
DOI: 10.31744/einstein_journal/2022AO6450
ABSTRACT Objective To understand the feasibility of FGFR3 tests in the Brazilian public health context, and to sample the mutational burden of this receptor in high-grade muscle invasive bladder cancer. Methods A total of 31 patients with high-grade muscle-invasive bladder cancer were included in the present study. Either transurethral resection of bladder tumor or radical cystectomy specimens were analyzed. Formalin-fixed paraffin-embedded tissue blocks were sectioned, hematoxylin and eosin stained, and histologic sections were reviewed. Total RNA was extracted using the […]
Palavras-chave: Carcinoma de células de transição; DNA; Mutação; Reação em cadeia da polimerase; Receptor, fibroblast growth factor, type 3; Sequence analysis, DNA; Neoplasias da bexiga urinária
18/nov/2014
18/nov/2014
DOI: 10.1590/S1679-45082014RC2794
O câncer de bexiga é um importante problema de saúde mundial, tanto pelas elevadas taxas de prevalência, quanto pelos custos relacionados ao tratamento. Desde a introdução da imunoterapia intravesical adjuvante com bacilo Calmette-Guérin, vem sendo observada diminuição na taxa de recorrência. As principais complicações são de pequeno porte e simples resolução a partir de medidas locais e orientações. A bexiga contraída, uma complicação local rara e grave, mas incapacitante em alguns casos, é observada principalmente em doentes com um programa […]
Palavras-chave: Administração intravesical; Cistectomia; Neoplasias da bexiga urinária; Relatos de casos; Vacina BCG