CARMEN LUCIA ORTIZ AGOSTINHO
Índice h a partir de 2011
4
Projetos de Pesquisa
Unidades Organizacionais
Instituto Central, Hospital das Clínicas, Faculdade de Medicina
LIM/07 - Laboratório de Gastroenterologia Clínica e Experimental, Hospital das Clínicas, Faculdade de Medicina
LIM/07 - Laboratório de Gastroenterologia Clínica e Experimental, Hospital das Clínicas, Faculdade de Medicina
9 resultados
Resultados de Busca
Agora exibindo 1 - 9 de 9
- Cytomegalovirus Infection in Inflammatory Bowel Disease Is Not Associated with Worsening of Intestinal Inflammatory Activity (vol 9, e111574, 2014)(2015) CARMO, Alexandre Medeiros do; SANTOS, Fabiana Maria; ORTIZ-AGOSTINHO, Carmen Lucia; NISHITOKUKADO, Ieda; FROTA, Cintia S.; GOMES, Flavia Ubeda; LEITE, Andre Zonetti de Arruda; PANNUTI, Claudio Sergio; BOAS, Lucy Santos Vilas; TEIXEIRA, Magaly Gemio; SIPAHI, Aytan Miranda
- Cytomegalovirus Infection in Inflammatory Bowel Disease Is Not Associated with Worsening of Intestinal Inflammatory Activity(2014) CARMO, Alexandre Medeiros do; SANTOS, Fabiana Maria; ORTIZ-AGOSTINHO, Carmen Lucia; NISHITOKUKADO, Ieda; FROTA, Cintia S.; GOMES, Flavia Ubeda; LEITE, Andre Zonetti de Arruda; PANNUTI, Claudio Sergio; BOAS, Lucy Santos Vilas; TEIXEIRA, Magaly Gemio; SIPAHI, Aytan MirandaBackground: Cytomegalovirus is highly prevalent virus and usually occurs in immunocompromised patients. The pathophysiology and treatment of inflammatory bowel disease often induce a state of immunosuppression. Because this, there are still doubts and controversies about the relationship between inflammatory bowel disease and cytomegalovirus. Aim: Evaluate the frequency of cytomegalovirus in patients with inflammatory bowel disease and identify correlations. Methods: Patients with inflammatory bowel disease underwent an interview, review of records and collection of blood and fecal samples. The search for cytomegalovirus was performed by IgG and IgM blood serology, by real-time PCR in the blood and by qualitative PCR in feces. Results were correlated with red blood cell levels, C-reactive protein levels, erythrocyte sedimentation rates and fecal calprotectin levels for each patient. Results: Among the 400 eligible patients, 249 had Crohn's disease, and 151 had ulcerative colitis. In the group of Crohn's disease, 67 of the patients had moderate or severe disease, but 126 patients presented with active disease, based on the evaluation of the fecal calprotectin. In patients with ulcerative colitis, only 21 patients had moderate disease, but 76 patients presented with active disease, based on the evaluation of the fecal calprotectin. A large majority of patients had positive CMV IgG. Overall, 10 patients had positive CMV IgM, and 9 patients had a positive qualitative detection of CMV DNA by PCR in the feces. All 400 patients returned negative results after the quantitative detection of CMV DNA in blood by real-time PCR. Analyzing the 19 patients with active infections, we only found that such an association occurred with the use of combined therapy (anti-TNF-alpha + azathioprine) Conclusion: The findings show that latent cytomegalovirus infections are frequent and active cytomegalovirus infection is rare. We did not find any association between an active infection of CMV and inflammatory bowel disease activity.
- Titanium dioxide induced inflammation in the small intestine(2012) NOGUEIRA, Carolina Maciel; AZEVEDO, Walter Mendes de; DAGLI, Maria Lucia Zaidan; TOMA, Sergio Hiroshi; LEITE, Andre Zonetti de Arruda; LORDELLO, Maria Laura; NISHITOKUKADO, Ieda; ORTIZ-AGOSTINHO, Carmen Lucia; DUARTE, Maria Irma Seixas; FERREIRA, Marcelo Alves; SIPAHI, Aytan MirandaAIM: To investigate the effects of titanium dioxide (TiO2) nanoparticles (NPTiO2) and microparticles (MPTiO2) on the inflammatory response in the small intestine of mice. METHODS: BI 57/6 male mice received distilled water suspensions containing TiO2 (100 mg/kg body weight) as NPTiO2 (66 nm), or MPTiO2 (260 nm) by gavage for 10 d, once a day; the control group received only distilled water. At the end of the treatment the duodenum, jejunum and ileum were extracted for assessment of cytokines, inflammatory cells and titanium content. The cytokines interleukin (IL)-1b, IL-4, IL-6, IL-8, IL-10, IL-12, IL-13, IL-17, IL-23, tumor necrosis factor-alpha (TNF-alpha), intracellular interferon-gamma (IFN-gamma) and transforming growth factor-beta (TGF-beta) were evaluated by enzyme-linked immunosorbent assay in segments of jejunum and ileum (mucosa and underlying muscular tissue). CD4(+) and CD8(+) T cells, natural killer cells, and dendritic cells were evaluated in duodenum, jejunum and ileum samples fixed in 10% formalin by immunohistochemistry. The titanium content was determined by inductively coupled plasma atomic emission spectrometry. RESULTS: We found increased levels of T CD4(+) cells (cells/mm(2)) in duodenum: NP 1240 +/- 139.4, MP 1070 +/- 154.7 vs 458 +/- 50.39 (P < 0.01); jejunum: NP 908.4 +/- 130.3, MP 813.8 +/- 103.8 vs 526.6 +/- 61.43 (P < 0.05); and ileum: NP 818.60 +/- 123.0, MP 640.1 +/- 32.75 vs 466.9 +/- 22.4 (P < 0.05). In comparison to the control group, the groups receiving TiO2 showed a statistically significant increase in the levels of the inflammatory cytokines IL-12, IL-4, IL-23, TNF-alpha, IFN-gamma and TGF-beta. The cytokine production was more pronounced in the ileum (mean SE): IL-12: NP 33.98 +/- 11.76, MP 74.11 +/- 25.65 vs 19.06 +/- 3.92 (P < 0.05); IL-4: NP 17.36 +/- 9.96, MP 22.94 +/- 7.47 vs 2.19 +/- 0.65 (P < 0.05); IL-23: NP 157.20 +/- 75.80, MP 134.50 +/- 38.31 vs 22.34 +/- 5.81 (P < 0.05); TNF alpha: NP 3.71 +/- 1.33, MP 5.44 +/- 1.67 vs 0.99 +/- 019 (P < 0.05); IFN gamma: NP 15.85 +/- 9.99, MP 34.08 +/- 11.44 vs 2.81 +/- 0.69 (P < 0.05); and TGF-alpha: NP 780.70 +/- 318.50, MP 1409.00 +/- 502.20 vs 205.50 +/- 63.93 (P < 0.05). CONCLUSION: Our findings indicate that TiO2 particles induce a Th1-mediated inflammatory response in the small bowel in mice.
conferenceObject Evaluation of oxidative stress in experimental model of Chron's disease under hyperbaric oxygen treatment(2016) NAKUTIS, F. S.; NISHITOKUKADO, I.; SANTOS, F. M. D.; ORTIZ-AGOSTINHO, C.; NUNES, V. S.; ZONETTI, A.; SIPAHI, A.- Pancreatic endosonographic findings and clinical correlation in Crohn's disease(2019) MALLUTA, Everson Fernando; MALUF-FILHO, Fauze; LEITE, Andre Zonetti de Arruda; ORTIZ-AGOSTINHO, Carmen Lucia; NISHITOKUKADO, Lecia; ANDRADE, Adriana Ribas; LORDELLO, Maria Laura Lacava; SANTOS, Fabiana Maria dos; SIPAHI, Aytan MirandaOBJECTIVES: We aimed to evaluate the incidence of pancreatic alterations in Crohn's disease using endoscopic ultrasound (EUS) and to correlate the number of alterations with current clinical data. METHODS: Patients diagnosed with Crohn's disease (n= 51) were examined using EUS, and 11 variables were analyzed. A control group consisted of patients with no history of pancreatic disease or Crohn's disease. Patients presenting with three or more alterations underwent magnetic resonance imaging (MRI). Pancreatic function was determined using a fecal elastase assay. RESULTS: Two of the 51 patients (3.9%) presented with four EUS alterations, 3 (5.9%) presented with three, 11 (21.5%) presented with two, and 13 (25.5%) presented with one; in the control group, only 16% presented with one EUS alteration (p< 0.001). Parenchymal abnormalities accounted for 39 of the EUS findings, and ductal abnormalities accounted for 11. Pancreatic lesions were not detected by MRI. Low fecal elastase levels were observed in 4 patients, none of whom presented with significant pancreatic alterations after undergoing EUS. Ileal involvement was predictive of the number of EUS alterations. CONCLUSION: A higher incidence of pancreatic abnormalities was found in patients with Crohn's disease than in individuals in the control group. The majority of these abnormalities are related to parenchymal alterations. In this group of patients, future studies should be conducted to determine whether such morphological abnormalities could evolve to induce exocrine or endocrine pancreatic insufficiency and, if so, identify the risk factors and determine which patients should undergo EUS.
conferenceObject Evaluation of Cytomegalovirus Infection in Patients With Inflammatory Bowel Disease(2013) CARMO, Alexandre M.; SANTOS, Fabiana M.; ORTIZ-AGOSTINHO, Carmen Lucia; NISHITOKUKADO, Ieda; FROTA, Cintia S.; GOMES, Flavia U.; LEITE, Andr Z.; PANNUTI, Claudio S.; TEIXEIRA, Magaly G.; SIPAHI, Aytan M.- Evaluation of oxidative stress in an experimental model of Crohn's disease treated with hyperbaric oxygen therapy(2023) NAKUTIS, Fernanda Serafim; NISHITOKUKADO, Ieda; SANTOS, Fabiana Maria dos; ORTIZ-AGOSTINHO, Carmen Lucia; ALENCAR, Daniel Teixeira de; ACHTSCHIN, Cassiana Ganem; NUNES, Valeria Sutti; LEITE, Andre Zonetti Arruda; SIPAHI, Aytan MirandaIntroduction: Treatments of Inflammatory Bowel Disease (IBD) are able to control symptoms in most cases, how-ever, a fraction of patients do not improve or have a loss of response to treatments, making it important to explore new therapeutic strategies. Hyperbaric oxygen therapy (HBO) may represent one of them. The aim of this study was to evaluate the effects of HBO therapy in an experimental model of IBD. Methods: Sixty male BALBc mice were divided into six groups. Group 1 was colitis-induced with trinitrobenzene sulfonic acid (TNBS) + ethanol, group 2 received TNBS + ethanol plus HBO, group 3 received only ethanol, group 4 received ethanol plus HBO, group 5 received saline solution, and group 6 received saline solution plus HBO. HBO was performed for four days, subsequently, the mice were evaluated daily. At the end of the study, samples from the intestine were collected for histological analysis as well as for measurement of antioxidant enzymes and cytokine levels. Results: HBO significantly improved the clinical and histological status of the animals. Treatment with HBO increased the activity of the antioxidant enzymes superoxide dismutase (SOD) and glutathione peroxidase (GPx) in all of the groups; moreover, the difference was only significant between the TNBS and TNBS + HBO groups and treatments promoted a reduction in the proinflammatory cytokines IFN-gamma, IL-12, IL-17 and TNF-alpha and increased the anti-inflammatory cytokines IL-4 and IL-10, with no changes in IL-13. Conclusion: HBO effectively treats TNBS-induced colitis by increasing the activity of antioxidant enzymes and modulating cytokine profiles.
- Endoscopic activity, tissue factor and Crohn's disease: findings in clinical remission patients(2020) ANDRADE, Adriana Ribas; ROCHA, Tania Rubia Flores da; ORTIZ-AGOSTINHO, Carmen Lucia; NISHITOKUKADO, Ieda; CARLOS, Alexandre Sousa; AZEVEDO, Matheus Freitas Cardoso de; HASHIMOTO, Claudio Lioshi; DAMIAO, Aderson Omar Moura Cintra; CARRILHO, Flair Jose; D'AMICO, Elbio; SIPAHI, Aytan Miranda; LEITE, Andre Zonetti de ArrudaBackground: As Crohn's disease (CD) is associated with a high risk of thromboembolic events (TE), including patients with subclinical inflammation, we aim to evaluate the correlation between the impact of endoscopic activity (EA) in the coagulation profiling of CD patients while in clinical remission. Methods: From 164 consecutive CD patients included in clinical remission [Crohn's disease activity index (CDAI) < 150], 75 were in the EA group [Simplified Endoscopic Score for CD (SES-CD) > 7], 89 were in the endoscopic remission (ER) group (SES-CD <= 2), and 50 were included as healthy controls in the study. Blood samples were analyzed for tissue factor (TF), factor VIII (FVIII), thrombomodulin (TM), ADAMTS-13, von Willebrand factor (VWF), and endogenous thrombin potential (ETP), as well as collecting data regarding risk factors for TE and CD profile. Results: Mean plasma TF activity showed significantly higher levels in the EA group when compared with the ER and control groups (127 pMversus103 pMversus84 pM;p = 0.001), although the VWF:Ag (160%versus168%versus110%;p = 0.001), VWF/ADAMTS-13 (191versus219versus138;p = 0.003), FVIII (150%versus144%versus90%;p = 0.001) and TM (5.13 ng/mlversus4.91 ng/mLversus3.81 ng/ml;p < 0.001) were only increased in CD regardless of EA status when compared with controls. Lastly, ETP with and without TM remained the same in all three groups. Conclusions: CD patients in clinical remission with EA present endothelial lesion inducing TF exposure and subsequent coagulation cascade activation. Recommended thromboprophylaxis for EA outpatient subgroups will require additional investigation in order to be validated.
- Prevalence of celiac disease among blood donors in SAO PAULO - the most populated city in Brazil(2012) ALENCAR, Marilia Lage; ORTIZ-AGOSTINHO, Carmen Lucia; NISHITOKUKADO, Ieda; DAMIAO, Aderson O. M. C.; ABRANTES-LEMOS, Clarice P.; LEITE, Andre Zonetti de Arruda; BRITO, Thales de; CHAMONE, Dalton de Alencar Fischer; SILVA, Maria Elizabeth Rossi da; GIANNELLA-NETO, Daniel; SIPAHI, Aytan MirandaOBJECTIVE: Celiac disease is a permanent enteropathy caused by the ingestion of gluten, which leads to an immune-mediated inflammation of the small intestine mucosa. The prevalence of celiac disease varies among different nations and ethnic backgrounds, and its diversity is determined by genetic and environmental factors. Sao Paulo city is one of the largest cities in the world, with a vast population and an important history of internal migratory flow from other Brazilian regions, as well as immigration from other, primarily European, countries, resulting in significant miscegenation. The aim of the present study was to estimate the prevalence of adults with undiagnosed celiac disease among blood donors of Sao Paulo by collecting information on the ancestry of the population studied. METHODS: The prevalence of celiac disease was assessed by screening for positive IgA transglutaminase and IgA endomysium antibodies in 4,000 donors (volunteers) in the Fundacao Pro-Sangue Blood Center of Sao Paulo, Sao Paulo, Brazil. The antibody-positive subjects were asked to undergo a small bowel biopsy. RESULTS: Of the 4,000 subjects, twenty-four had positive tests, although both antibody tests were not always concordant. For example, ten subjects were positive for IgA tissue transglutaminase only. In twenty-one positive patients, duodenal biopsies were performed, and the diagnosis of celiac disease was confirmed in fourteen patients (Marsh criteria modified by Oberhuber). In this group, 67% claimed to have European ancestry, mainly from Italy, Portugal and Spain. CONCLUSION: The prevalence of celiac disease is at least 1: 286 among supposedly healthy blood bank volunteers in Sao Paulo, Brazil.