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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Estudo dos pólipos endometriais pela imunoexpressão das proteinas p53 e PTEN / Study of endometrial polyps by immune expression of p53 and PTEN proteins

Abrão, Féres [UNESP] 19 February 2016 (has links)
Submitted by FERES ABRÃO null (feresabrao@terra.com.br) on 2016-07-13T11:38:27Z No. of bitstreams: 1 Doutorado correção.pdf: 4863333 bytes, checksum: d5c66d377ec9c9a5af09337fc25585bd (MD5) / Rejected by Ana Paula Grisoto (grisotoana@reitoria.unesp.br), reason: Submissão duplicada. Solicitamos que realize uma nova submissão. Agradecemos a compreensão. on 2016-07-14T20:50:33Z (GMT) / Submitted by FERES ABRÃO null (feresabrao@terra.com.br) on 2016-07-14T21:08:33Z No. of bitstreams: 1 Doutorado correção.pdf: 4863333 bytes, checksum: d5c66d377ec9c9a5af09337fc25585bd (MD5) / Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-07-15T17:20:39Z (GMT) No. of bitstreams: 1 abrao_f_dr_bot.pdf: 4863333 bytes, checksum: d5c66d377ec9c9a5af09337fc25585bd (MD5) / Made available in DSpace on 2016-07-15T17:20:39Z (GMT). No. of bitstreams: 1 abrao_f_dr_bot.pdf: 4863333 bytes, checksum: d5c66d377ec9c9a5af09337fc25585bd (MD5) Previous issue date: 2016-02-19 / Objetivo: Avaliar os pólipos endometriais pela imunoexpressão das proteínas p53 e PTEN como fatores preditivos para riscos de pré-malignidade e malignidade. Pacientes e Métodos: Estudo transversal com amostra por conveniência, cujos dados foram obtidos através de consultas aos prontuários no período de janeiro de 2010 a dezembro 2014 de pacientes com diagnóstico de pólipos endometriais, submetidas a histeroscopias diagnósticas e cirúrgicas/polipectomia no Setor de Endoscopia Ginecológica e Planejamento Familiar da Disciplina de Ginecologia da Faculdade de Medicina de Botucatu (UNESP) e da Clínica “Abrão” de Marília. Os pólipos endometriais foram encaminhados, em bloco de parafina, à Consultoria em Patologia Dr Carlos Bacchi para avaliação imunoistoquímica, identificando os marcadores p53 e PTEN. Todas as pacientes realizaram, previamente, ultrassonografia transvaginal e histeroscopia diagnóstica. O grupo estudado constituiu-se de 159 pacientes (n=159) com diagnóstico de pólipo confirmado pelo exame anátomo patológico. Grupo amostral: as pacientes foram divididas em 2 (dois) grupos, assim denominados: Grupo A=120 (pacientes com pólipos endometriais sem atipias) e Grupo B=39 (pacientes com pólipos endometriais com atipias). O Grupo A foi subdividido em 4 subgrupos, assim denominados: A1- imunoistoquímico p53 negativo e PTEN positivo; A2- imunoistoquímico p53 positivo e PTEN positivo; A3- imunoistoquímico p53 negativo e PTEN negativo e A4- imunoistoquímico p53 positivo e PTEN negativo. O Grupo B foi subdividido em 4 subgrupos, assim denominados: B1- imunoistoquímico p53 negativo e PTEN positivo; B2- imunoistoquímico p53 positivo e PTEN positivo; B3- imunoistoquímico p53 negativo e PTEN negativo e B4 imunoistoquímico p53 positivo e PTEN negativo. Resultados: Os Grupos não apresentaram diferenças nas características clinico-epidemiologicas, demonstrando homogeneidade na amostra estudada. No grupo A: o subgrupo A1, com 80 pacientes (66,6%) apresentou p53 negativo e PTEN positivo, marcadores tumorais normais e 1 (uma) paciente (1,25%) teve neoplasia maligna de endométrio. As demais 40 pacientes (33,4%) dos subgrupos A2, A3, A4 apresentaram marcadores tumorais alterados, destes, 6 (seis) pacientes (15%) tiveram neoplasia maligna de endometrio; O A2 com 20 pacientes (16,6%) apresentou p53 positivo e PTEN positivo; A3 com 14 pacientes (11,6%) apresentou p53 positivo e PTEN negativo e A4 com 6 pacientes (5,1%) apresentou p53 negativo e PTEN negativo . O Grupo A teve, média de idade 57,5 anos, Índice de Massa Corpórea (IMC) 28,45, número médio de gestações 2(duas), índice de Aborto 16,7%, Tabagista 8,3%, Hipertensas 46,7%, Diabeticas 11,7%, amenorreia média 10 anos. Cerca de 5.9% das pacientes do grupo A tiveram neoplasia maligna de endométrio e houve maior incidência de neoplasia nas pacientes com marcadores alterados, em relação aquelas com marcadores normais (15% versus 1,25%, respectivamente; p=0,0089 e OR=13.94). No Grupo B: o subgrupo B1 com 21 pacientes (53,9%) apresentou marcadores tumorais normais (p53 negativo e PTEN positivo) e 1(uma) paciente (4,8%) teve neoplasia maligna de endométrio. As demais 18 pacientes (46,1%) dos subgrupos B2, B3, B4 apresentaram marcadores tumorais alterados, destes 7(sete) pacientes (38,9%) tiveram neoplasia maligna de endométrio. O B2 com 11 pacientes (28,2%) apresentou p53 positivo e PTEN positivo; B3 com 4 pacientes (10,2%) apresentou p53 positivo e PTEN negativo e A4 com 3 pacientes (7,7%) apresentou p53 negativo e PTEN negativo. O Grupo B teve, média de idade 61 anos, Índice de Massa Corpórea (IMC) 27, número médio de Gestações 2 (duas), índice de Aborto 7,7%, Tabagista 8,3%, Hipertensas 64%, Diabeticas 17,9%, com amenorreia média de 10 anos. Cerca de 20,5% das pacientes do grupo B tiveram neoplasia maligna de endométrio e houve maior incidência nas pacientes com marcadores tumorais alterados em relação as pacientes com marcadores normais (38,9 versus 4,8%, respectivamente; p=0,00255 e OR= 12.73). O grupo B teve maior incidência de neoplasia maligna de endometrio em relação ao grupo A (20,5% versus 5,9% respectivamente; p=0,011). No total 159 pacientes (grupo A + Grupo B), 110 pacientes com p53 negativo, 3 pacientes tiveram neoplasia de endométrio; e 49 pacientes com p53 positivo, 11 tiveram neoplasia de endométrio.(p=0,0006,OR=7,67) e 132 pacientes com PTEN positivo, 8 pacientes tiveram neoplasia de endométrio, 27 pacientes com PTEN negativo, 7 tiveram neoplasia de endométrio.(p=0,00043; OR=5,43). Conclusões: 1- O estudo imunoistoquímico nas pacientes portadoras de pólipo endometrial mostrou ser um armamento útil para predizer o risco de malignização do endométrio,2- Estudos complementares devem ser aguardados, principalmente com maior casuística, para corroborar os dados encontrados,3- As pacientes com pólipos endometriais e marcadores tumorais alterados, p53 e PTEN, principalmente, quando associados a obesidade, hipertensão arterial sistêmica e diabetes mellitus II, podem apresentar maior risco de neoplasia maligna de endométrio,4- As neoplasias malignas do endométrio foram encontrados com maior incidências em mulheres de maior idade e no grupo de pólipos com atipias. / Objective: Evaluate the endometrial polyps by immune expression of p53 protein and PTEN as predictive factors for pre malignancy and malignancy risks. Patients and Methods: Transversal study with samples by convenience whose data were obtained by consulting the medical charts from January 2010 to December 2014 of patients diagnosed with endometrial polyps, submitted to a diagnostic and surgical hysteroscopy/polypectomy in the Gynaecological Endoscopy and Familiar Planning Division of the Gynaecology Discipline at Medical School of Botucatu (UNESP) and “Abrão” Clinic of Marília. The endometrial polyps, in paraffin blocks, were sent to Doctor Carlos Bacchi Pathology Advisory for immune hystochemical assessment, identifying the markers p 53 and PTEN. Previously, transvaginal ultrasonography and diagnostic hysteroscopy were done in all the patients. The studied group was made up of 159 patients (n=159) with confirmed diagnosis of polyps by anatomical pathological examination. Sample group: the patients were divided into 2 groups: Group A=120 (patients with endometrial polyps without atypias) and Group B = 39 (patients with endometrial polyps with atypias). Group A was subdivided into 4 sub groups: A1- immune hystochemical p53 negative and PTEN positive; A2- immune hystochemical p53 positive and PTEN positive; A3- immune hystochemical p53 negative and PTEN negative and A4- immune hystochemical p53 positive and PTEN negative. Group B was subdivided into 4 sub groups: B1- immune hystochemical p53 negative and PTEN positive; B2- immune hystochemical p53 positive and PTEN positive; B3- immune hystochemical p53 negative and PTEN negative and B4- immune hystochemical p53 positive and PTEN negative. Results: The groups did not present differences in clinical-epidemiological characteristics, showing homogeneity in the sample studied. In Group A: subgroup A1 with 80 patients (66.6%) presented p53 negative and PTEN positive, normal tumor markers and one patient (1.25%) had endometrium malignant neoplasm. The other 40 patients (33.4%) of subgroups A2, A3 and A4 presented altered tumor markers, being 6 (six) patients (15%) with endometrium malignant neoplasm; A2 with 20 patients(16.6%) presented p53 positive and PTEN positive; A3 with 14 patients (11.6%) presented p 53 positive and PTEN negative and A4 with 6 patients (5.1 %) presented p53 negative and PTEN negative. In Group A, the average age was 57.5 years, the Body Mass Index (BMI) 28.45, the medium number of Pregnancy was 2(two), the Abortion rate was 16.7%, Smoking 8.3%, Hypertensive 46.7%, Diabetics 11.7%, with 10 years average amenorrhea, and around 5.9% of them developed endometrium malignant neoplasm and there was higher incidence of neoplasm on patients with altered markers compared to those with normal markers (15% versus 1.25%, respectively; p=0.0089 and OR=13.94). In Group B: the subgroup B1 with 21 patients (53.9%) presented normal tumor markers (p53 negative and PTEN positive) and 1(one) patient (4.8%) had endometrium malignant neoplasm. The other 18 patients (46.1%) of subgroups B2, B3, B4 presented altered tumor markers, being that 7(seven) patients (38.9%) had endometrium malignant neoplasm. B2 with 11 patients (28.2%) presented p53 positive and PTEN positive; B3 with 4 patients (10.2%) presented p53 positive and PTEN negative and A4 with 3 patients (7.7%) presented p53 negative and PTEN negative. In Group B, the average age was 61 years, the Body Mass Index (BMI) 27, the medium number of Pregnancy was 2 (two) , the Abortion rate was 7.7%, Smoking 8.3%, Hypertensive 64%, Diabetics 17.9%, with 10 years average amenorrhea, and around 20.5% of them developed endometrium malignant neoplasm and there was higher incidence on patients with altered tumor in relation to those with normal markers (38.9 versus 4.8%, respectively; p=0.00255 e OR= 12.73). Group B had higher incidence of endometrium malignant neoplasm than group A (20.5% versus 5.9% respectively; p=0.011). Out of 159 patients (Group A + Group B), 110 patients with p53 negative, 3 patients had endometrium neoplasm; and 49 patients with p53 positive, 11 had endometrium neoplasm.(p=0.0006,OR=7.67) and 132 patients with PTEN positive, 8 patients had endometrium neoplasm, 27 patients with PTEN negative, 7 had endometrium neoplasm.(p=0.00043; OR=5.43). Conclusions:1-Immunohistochemical analysis can be useful to predict malignant transformation in cases of endometrial polyps, 2-Further larger studies to confirm the data obtained are warranted, 3-The risk of malignant endometrial neoplasia is higher in patients with endometrial polyps showing abnormal p53 and PTEN immunohistochemistry in the presence of advanced age, high BMI, systemic arterial hypertension, and type 2 Diabetes Mellitus, 4-The incidence of malignant endometrial neoplasia was higher in women of more advance age with polyps with atypia.

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