MAURICIO SIMOES ABRAO
Projetos de Pesquisa
Unidades Organizacionais
Departamento de Obstetrícia e Ginecologia, Faculdade de Medicina - Docente
LIM/58 - Laboratório de Ginecologia Estrutural e Molecular, Hospital das Clínicas, Faculdade de Medicina
LIM/58 - Laboratório de Ginecologia Estrutural e Molecular, Hospital das Clínicas, Faculdade de Medicina
20 resultados
Resultados de Busca
Agora exibindo 1 - 10 de 20
- Role of Eutopic Endometrium in Pelvic Endometriosis(2011) CARVALHO, Luiz; PODGAEC, Sergio; BELLODI-PRIVATO, Marta; FALCONE, Tommaso; ABRAO, Mauricio SimoesEndometriosis is defined as the presence of endometrial tissue outside the uterine cavity and is considered a benign gynecologic condition; however, in some cases, it may be aggressive. The pathogenesis of endometriosis is complex and multifactorial. Despite being one of the most widely studied gynecologic diseases, its pathogenesis remains uncertain. The intrinsic endometrial abnormalities thought lobe associated with endometriosis include abnormal expression of genes, modification of endometrial response to hormones such as progesterone; increased nerve density, and oxidative stress. Evaluation of the endometrium in patients with endometriosis is an important line of investigation in the pathophysiology of the disease. It has been suggested that investigation of eutopic endometrium may help to achieve this goal. Presented herein is a literature review and a comprehensive evaluation of the role of eutopic endometrium in pelvic endometriosis. Clinical correlations of the disease are highlighted, with the objective of understanding the role of eutopic endometrium in endometriosis. Journal of Minimally Invasive Gynecology (2011) 18, 419-427 (C) 2011 AAGL. All rights reserved.
bookPart Endometriose: modelo experimental(2014) PODGAEC, Sergio; ABRãO, Maurício Simões; JúNIOR, José Maria Soares; SIMõES, Manuel de Jesus; BARACAT, Edmund Chada- Laparoscopic Management of Pregnancy in a Patient with Uterus Didelphys - Reply(2012) BASSI, Marco Antonio; PODGAEC, Sergio; DIAS JR., Joao Antonio; D'AMICO FILHO, Nicolau; PETTA, Carlos Alberto; ABRAO, Mauricio S.
article 2 Citação(ões) na Scopus Measurement of Serum and Peritoneal Levels of Amyloid Protein A and Their Importance in the Diagnosis of Pelvic Endometriosis(2013) EJZENBERG, Dani; PODGAEC, Sergio; DIAS JR., Joao Antonio; OLIVEIRA, Ricardo Manoel de; BARACAT, Edmund Chada; ABRAO, Mauricio SimoesOBJECTIVE: To evaluate serum and peritoneal concentrations of amyloid protein A in women with endometriosis and to compare them with those of women without endometriosis. STUDY DESIGN: A prospective study evaluated 76 women suspected of having pelvic endometriosis. Fifty-seven women (group A) were confirmed by videolaparoscopy and had their serum and peritoneal amyloid A concentrations measured by procedure of evaluating the peritoneal amyloid A concentration in endometriosis merits further investigation. ELISA. The average levels from group A were compared to those obtained in group B. Group B was composed of 13 women without endometriosis, submitted to elective laparoscopy for tubal ligation. RESULTS: Peritoneal amyloid A concentrations in group A (310.3 +/- 97.8 ng/mL) were higher than those of group B (53.4 +/- 58.2 ng/mL); p = 0.0. However, serum concentrations in groups A (14.01 +/- 32.3 ng/mL) and B (9.5 +/- 15.9 ng/mL) did not differ significantly; p = 0.35. CONCLUSION: The peritoneal amyloid A protein concentration in pelvic endometriosis was higher when compared to normal controls, corroborating the inflammatory nature of the disease. This finding suggests that the procedure of evaluating the peritoneal amyloid A concentration in endometriosis merits further investigation.bookPart Dor pélvica crônica(2013) FAGUNDES, Paula Zulian; FERNANDES, Luiz Flávio Cordeiro; PODGAEC, Sergio; ABRãO, Maurício Simões- Deep Invasive Endometriosis Lesions of the Rectosigmoid May Be Related to Alterations in Cell Kinetics(2015) BASSI, Marco Antonio; ARIAS, Victor; D'AMICO FILHO, Nicolau; GUEUVOGHLANIAN-SILVA, Barbara Yasmin; ABRAO, Mauricio Simoes; PODGAEC, SergioObjectives: The aim of this study was to analyze cell kinetics through expression and apoptosis of topoisomerase 2- (TOP2A), p53, and c-erb2 in rectosigmoid endometriotic lesions and in healthy endometrial tissue and to establish correlations between such findings and clinical data in patients with rectosigmoid endometriosis. Methods: Sixty patients with rectosigmoid endometriosis and 20 control women without endometriosis were included. Immunohistochemical assays were used to measure expression of TOP2A, p53, and c-erB-2. Apoptosis was quantified by directly counting the apoptotic bodies. Findings: The number of lesions was positively correlated with expression of TOP2A in the lesion. There was also significant correlation between the lesions' size and number and cell turnover index. Apoptosis index (AI) was the same for endometriosis lesions and eutopic endometrium. Expression of TOP2A was significantly lower in the endometriosis group compared to the controls. Conclusions: Changes in cell proliferation but not in the AI in rectosigmoid endometriosis are indicative of an imbalance in cell kinetics that may lead to the development of the disease.
- Fatores ambientais e endometriose: um ponto de vista(2014) BELLELIS, Patrick; PODGAEC, Sergio; ABRÃO, Mauricio Simões
bookPart Adenomiose(2013) BELLELIS, Patrick; PODGAEC, Sergio; ABRãO, Maurício Simões- Transcriptional changes in the expression of chemokines related to natural killer and T-regulatory cells in patients with deep infiltrative endometriosis(2013) BELLELIS, Patrick; BARBEIRO, Denise Frediani; RIZZO, Luiz Vicente; BARACAT, Edmund Chada; ABRAO, Mauricio Simoes; PODGAEC, SergioObjective: To evaluate the expression of chemokines that regulate natural killer (NK) and T-regulatory (T-reg) cell activity in eutopic and ectopic endometrial tissue samples from endometriosis patients. Design: Case-control study (Canadian Task Force classification II-2). Setting: Tertiary referral hospital. Patient(s): Sixty-four consecutive patients with and without endometriosis. Intervention(s): After videolaparoscopy, patients were divided into three groups: bowel endometriosis (n = 22), retrocervical endometriosis (n = 10), and endometriosis-free women (n = 32). Main Outcome Measure(s): Gene expression of the chemokines that regulate NK (CXCL9, CXCL10, CXCL11, CXCL12, XCL1, and CX3CL1) and T-reg cell activity (CCL17 and CCL21) evaluated by real-time polymerase chain reaction. Result(s): Of the chemokines associated with NK cells, CX3CL1 and CXCL12 expression was statistically significantly greater in the foci of endometriosis compared with the eutopic endometrium in patients and controls. From the chemokines associated with T-reg cells, CCL17 expression was statistically significantly greater in the eutopic endometrium of the patients with rectosigmoid endometriosis compared with the foci of endometriosis or eutopic endometrium of the patients with retrocervical endometriosis or the disease-free women. Conclusion(s): Both T-reg and NK cells mediate inflammatory response and may play a fundamental role in endometriosis by causing an impaired clearing of endometrial cells. Establishing how CCL17, CXCL12, and CX3CL1 modulate this response is essential to understanding inflammatory responses in endometriosis. (Fertil Steril (R) 2013; 99: 1987-93. (C) 2013 by American Society for Reproductive Medicine.)
- Foxp3 expression in deep rectosigmoid endometriosis lesions and its association with chronic pelvic pain(2014) PODGAEC, Sergio; BARBEIRO, Denise Frediani; GUEUVOGHLANIAN-SILVA, Barbara Yasmin; BELLELIS, Patrick; ABRAO, Mauricio Simoes; BARACAT, Edmund ChadaEndometriosis is a benign gynecological disease that is related to immune response alterations. T regulatory cells modulate immune response, and Foxp3 seems to be the best marker of these cells. This study evaluated Foxp3 mRNA expression in eutopic endometrium from women with endometriosis and healthy controls, and its expression in deep rectosigmoid endometriosis lesions, one of the more aggressive types of the disease. Foxp3 expression was higher in lesions than in eutopic endometrium in the two groups. Moreover, eutopic endometrium Foxp3 expression of women with endometriosis was associated with chronic pelvic pain and cyclic urinary pain.