Bacharelado em Ciências Biológicas (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/5
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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3 resultados
Resultados da Pesquisa
Item PPARs no câncer de fígado: sintenia e interações aplicados a medicina evolutiva(2024-02-26) Leôncio, Thays Maria; Freitas, Nara Suzy Aguiar de; Souza, Paulo Roberto Eleutério de; http://lattes.cnpq.br/6891650997818766; http://lattes.cnpq.br/3551659636270655Liver cancer is the sixth most common diagnosis and the third cause of death. Peroxisome proliferator-activated nuclear receptors (PPARs) are a group of genes that act as transcription factors and have recently been indicated as potential therapeutics for liver cancer. Thus, we studied the PPARs genes associated with their interactions and synteny in an evolutionary medicine approach to liver cancer. The selection of the PPAR family and the primary analysis of their functions were obtained on the NCBI and UniProt platforms. The search for gene interactions was carried out using the protein association network in the STRING database, for the PPAR, PPAR and PPAR subtypes and the synteny analysis of this gene group was carried out. The return of information indicated that the set of genes and gene products evaluated have multiple functionalities of varying magnitude and complexity, being related to liver metabolism and its risk factors or not with liver cancer. In addition to being Mendelian units, they also mainly present positive and negative pleiotropic effects, directly or indirectly involved with liver diseases or healthy phenotypes, such as activities related to thyroid function, spermatogenesis, bone formation and differentiation, satiety control, circadian cycle, among others. These analyzes that are just beginning show promise for an early prognosis involving not only the molecular interactions of PPARs, but their positions in the genome. In this sense, genes are also modulated sometimes to develop their tumorigenic expression, sometimes not, suggesting that their study focused mainly on a healthy phenotype can facilitate preventive actions. This basic approach to evolutionary medicine identified new biomarker targets for hepatocellular carcinoma that could be effectively useful for future genetic evaluations, aiming to better prevent diseases and promote health.Item Análise de incidência de câncer de vesícula biliar em pacientes atendidos no Laboratório Municipal de Saúde Pública do Recife (2014 - 2022)(2024-02-05) Santos, Bruna Maria Correia dos; Souza, Paulo Roberto Eleutério de; http://lattes.cnpq.br/1971832245117283; http://lattes.cnpq.br/2311174575605049Gallbladder cancer (GBC) is considered a rare type of cancer by the World Health Organization (WHO) and characterized by the absence of symptoms in the early stages, but in advanced stages manifests with abdominal pain. The WHO considers this type of tumor as the most common in the biliary tract, associating it with risk factors such as gallstones, age, female sex, and a higher propensity in white individuals. This study aimed to evaluate the prevalence of gallbladder cancer in patients undergoing elective cholecystectomies, assessing the occurrence of GBC in patients treated at the Municipal Public Health Laboratory of the Recife- Pernambuco from 2014 to 2022. An observational, retrospective, descriptive-analytical study was conducted using secondary sources of patients diagnosed with GBC from 2014 to 2022. A total of 17,970 medical records were analyzed during the study period. Among these, 10 were related to the gallbladder, and only 2 had a diagnosis of GBC. The female sex was present in 70% (7/10) of the cases and 50% were diagnosed with gallstone disease. The most performed operation was simple cholecystectomy. In the two patients with GBC, the diagnosis of gallbladder adenocarcinoma was confirmed. Tumor staging revealed 50% (1/2) at stage IIIb and 50% (1/2) at stage II among the examined cases. Thus, this study confirmed the prevalence of gallbladder adenocarcinoma in GBC and identified cholelithiasis as the main risk factor similar to previous studies.Item Efeito da lectina de folhas de Schinus terebinthifolia sobre a formação de vasos do saco vitelínico e morfologia de embriões de Coturnix japônica(2019-08-13) França, Rayssa Perla Martins; Pontual, Emmanuel Viana; http://lattes.cnpq.br/1777060469196142; http://lattes.cnpq.br/4999755464041290Angiogenesis corresponds to the budding of new blood vessels starting from other preexisting ones. This process is of great importance for development of tumor cells. Schinus terebinthifolia (Brazilian Peppertree) leaves express a thermostable and antimicrobial lectin (SteLL). This work reports the effect of SteLL on the angiogenesis process using the in vivo model of yolk sac membrane of Coturnix japonica (Japanese quail) embryos. The fractal analysis by box counting and information dimension indicated that SteLL at 1.35 mg/mL reduced the angiogenesis of C. japonica yolk sac membrane. The inhibition of the vascular network formation in the yolk sac membrane resulted in decreased blood supply to the embryos, and consequently area, perimeter and percentage of cephalic length of embryos were significantly reduced in the group treated with SteLL, corroborating with the antiangiogenic activity. In conclusion, SteLL is an antiangiogenic agent and this result stimulate future investigations about its antitumor activity.