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Master's Dissertation
DOI
https://doi.org/10.11606/D.17.2003.tde-23052023-161321
Document
Author
Full name
Hermes de Freitas Barbosa
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
Ribeirão Preto, 2003
Supervisor
Committee
Reis, Francisco José Cândido dos (President)
Carvalho, Jesus Paula
Ramalho, Leandra Naira Zambelli
Title in Portuguese
Estudo da apoptose no endométrio adjacente aos pólipos e carcinomas do endométrio na pós-menopausa
Keywords in Portuguese
Apoptose
Carcinoma do endométrio
Endométrio adjacente
Pólipo endometrial
Abstract in Portuguese
A apoptose é um mecanismo fundamental para a homeostase do tecido endometrial. No entanto, seu papel no desenvolvimento das lesões benignas e malignas do endométrio não está totalmente esclarecido. O objetivo deste estudo foi avaliar a ocorrência de apoptose nos carcinomas e nos pólipos endometriais e em seus endométrios adjacentes. Foram incluídas 40 pacientes, 15 com adenocarcinoma de endométrio do tipo endometrióide e 25 com pólipo endometrial. A apoptose foi identificada na lesão neoplásica e em seu endométrio adjacente através da coloração de hematoxilina e eosina (HE) e do método TUNEL (TdT-mediated dUTP-biotin Nick End-Labelling) e os resultados foram expressos como índice de apoptose [(número de células em apoptose/ número total de células) X 100]. A mediana do índice de apoptose (IA) pelo método HE foi 1,2% no carcinoma, 1,06% no endométrio adjacente ao carcinoma, 0,54% no pólipo e 0,1% no endométrio adjacente ao pólipo. Pelo método TUNEL, o IA foi 0,73% no carcinoma, 1,05% no endométrio adjacente ao carcinoma, 0,35% no pólipo e 0,06% no endométrio adjacente ao pólipo. Os métodos HE e TUNEL apresentaram um coeficiente de correlação de Spearman (r) > 0,6 em todos os grupos. Concluiu-se que o carcinoma de endométrio apresenta índice de apoptose maior do que o pólipo endometrial, e que o endométrio adjacente ao carcinoma apresenta índice de apoptose maior do que o endométrio adjacente ao pólipo endometrial.
Title in English
Evaluation of apoptosis in adjacent endometrium at polyps and carcinomas of the endometrium in postmenopause
Keywords in English
Adjacent endometrium
Apoptosis
Carcinoma of the endometrium
Endometrial polyp
Abstract in English
Apoptosis is a fundamental mechanism for homeostasis of endometrial tissue. However, its role in the development of benign and malign endometrial lesions is not completely understood. The aim of the study was to evaluate the occurrence of apoptosis in endometrial carcinomas and polyps as well as in their adjacent endometrium. Forty cases were assessed: 15 endometrial adenocarcinomas and 25 endometrial polyps. We identified the apoptosis in neoplastic and adjacent tissue by the Hematoxylin and Eosin (HE) staining and TUNEL (TdT-mediated dUTPbiotin Nick End-Labelling) assay and quantified it by the apoptotic index [(apoptotic cells/ cells) X 100]. Median of apoptotic index (AI) by the HE method was 1,2% in carcinoma, 1,06% in adjacent endometrium at carcinoma, 0,54% in polyp and 0,1% in adjacent endometrium at polyp. By the TUNEL method, the AI was 0,73% in carcinoma, 1,05% in adjacent endometrium at carcinoma, 0,35% in polyp and 0,06% in adjacent endometrium at polyp. The HE and TUNEL methods showed Spearman correlation coefficient (r) >0,6 in every groups. We conclude that carcinoma of the endometrium showed apoptotic index greater than in endometrial polyp, and that adjacent endometrium of carcinoma showed apoptotic index greater than in adjacent endometrium at endometrial polyp.
 
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Publishing Date
2023-05-23
 
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