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1.
Mem Inst Oswaldo Cruz ; 106(6): 748-54, 2011 Sep.
Article in English | MEDLINE | ID: mdl-22012231

ABSTRACT

The hypothesis that Helicobactermight be a risk factor for human liver diseases has arisen after the detection of Helicobacter DNA in hepatic tissue of patients with hepatobiliary diseases. Nevertheless, no explanation that justifies the presence of the bacterium in the human liver has been proposed. We evaluated the presence of Helicobacterin the liver of patients with hepatic diseases of different aetiologies. We prospectively evaluated 147 patients (106 with primary hepatic diseases and 41 with hepatic metastatic tumours) and 20 liver donors as controls. Helicobacter species were investigated in the liver by culture and specific 16S rDNA nested-polymerase chain reaction followed by sequencing. Serum and hepatic levels of representative cytokines of T regulatory cell, T helper (Th)1 and Th17 cell lineages were determined using enzyme linked immunosorbent assay. The data were evaluated using logistic models. Detection of Helicobacter pylori DNA in the liver was independently associated with hepatitis B virus/hepatitis C virus, pancreatic carcinoma and a cytokine pattern characterised by high interleukin (IL)-10, low/absent interferon-γ and decreased IL-17A concentrations (p < 10(-3)). The bacterial DNA was never detected in the liver of patients with alcoholic cirrhosis and autoimmune hepatitis that are associated with Th1/Th17 polarisation. H. pylori may be observed in the liver of patients with certain hepatic and pancreatic diseases, but this might depend on the patient cytokine profile.


Subject(s)
Cytokines/immunology , Helicobacter Infections/immunology , Helicobacter pylori/isolation & purification , Liver Diseases/microbiology , Liver/microbiology , Adolescent , Adult , Aged , Aged, 80 and over , Case-Control Studies , DNA, Bacterial/isolation & purification , DNA, Ribosomal/isolation & purification , Enzyme-Linked Immunosorbent Assay , Female , Helicobacter pylori/genetics , Humans , Immunohistochemistry , Liver Diseases/immunology , Male , Middle Aged , Polymerase Chain Reaction , Prospective Studies , Th1 Cells/immunology , Th17 Cells/immunology , Young Adult
2.
Mem. Inst. Oswaldo Cruz ; 106(6): 748-754, Sept. 2011. ilus
Article in English | LILACS | ID: lil-602060

ABSTRACT

The hypothesis that Helicobactermight be a risk factor for human liver diseases has arisen after the detection of Helicobacter DNA in hepatic tissue of patients with hepatobiliary diseases. Nevertheless, no explanation that justifies the presence of the bacterium in the human liver has been proposed. We evaluated the presence of Helicobacterin the liver of patients with hepatic diseases of different aetiologies. We prospectively evaluated 147 patients (106 with primary hepatic diseases and 41 with hepatic metastatic tumours) and 20 liver donors as controls. Helicobacter species were investigated in the liver by culture and specific 16S rDNA nested-polymerase chain reaction followed by sequencing. Serum and hepatic levels of representative cytokines of T regulatory cell, T helper (Th)1 and Th17 cell lineages were determined using enzyme linked immunosorbent assay. The data were evaluated using logistic models. Detection of Helicobacter pylori DNA in the liver was independently associated with hepatitis B virus/hepatitis C virus, pancreatic carcinoma and a cytokine pattern characterised by high interleukin (IL)-10, low/absent interferon-γ and decreased IL-17A concentrations (p < 10-3). The bacterial DNA was never detected in the liver of patients with alcoholic cirrhosis and autoimmune hepatitis that are associated with Th1/Th17 polarisation. H. pylori may be observed in the liver of patients with certain hepatic and pancreatic diseases, but this might depend on the patient cytokine profile.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Young Adult , Cytokines/immunology , Helicobacter Infections/immunology , Helicobacter pylori/isolation & purification , Liver Diseases/microbiology , Liver/microbiology , Case-Control Studies , DNA, Bacterial/isolation & purification , DNA, Ribosomal/isolation & purification , Enzyme-Linked Immunosorbent Assay , Helicobacter pylori/genetics , Immunohistochemistry , Liver Diseases/immunology , Polymerase Chain Reaction , Prospective Studies , Th1 Cells/immunology , /immunology
3.
Rio de Janeiro; Guanabara Koogan; 4 ed; 2011. 1291 p.
Monography in Portuguese | LILACS | ID: lil-719777
4.
Rio de Janeiro; Guanabara Koogan; 4 ed; 2011. 1291 p ilus.
Monography in Portuguese | Coleciona SUS | ID: biblio-938835
5.
Inflamm Bowel Dis ; 15(3): 353-8, 2009 Mar.
Article in English | MEDLINE | ID: mdl-18942754

ABSTRACT

BACKGROUND: Polymorphisms in genes linked to the innate and adaptive immune response may be involved in inflammatory bowel disease pathogenesis. Our aim was to investigate associations among IL1B-511, IL1B-31, IL1RN, TNFA-307, TLR-2, TLR-4, IL2-330, NOD2 G908R, NOD2 L1007fsinsC polymorphisms and both Crohn's disease (CD) and ulcerative colitis (UC) in a Brazilian population. METHODS: We studied 43 patients with CD, 42 with UC, and 541 blood donors. Polymorphisms were evaluated by PCR, PCR-CTPP, or PCR-RFLP. Data were analyzed in multivariate models adjusting for confounding factors. RESULTS: IL1RN VNTR (P = 0.00, odds ratio [OR] = 2.43, 95% confidence interval [CI] = 1.50-3.90), as well as TNFA-307 polymorphic allele (P = 0.05, OR = 1.70, 95% CI = 1.00-2.94) were associated with UC. Both NOD2 mutations (G908R, P = 0.02, OR = 6.83, 95% CI = 1.62-25.45, and L1007fsinsC, P = 0.00, OR = 20.00, 95% CI = 3.21-124.69) were associated with CD. CONCLUSIONS: Our analyses showed positive associations between proinflammatory polymorphisms at IL1RN and TNFA-307 loci and UC, as well as polymorphisms in the NOD2 gene and CD. These results highlight the importance of different genetic profiles associated with CD and UC.


Subject(s)
Colitis, Ulcerative/immunology , Crohn Disease/immunology , DNA/genetics , Immunity, Cellular/immunology , Nod2 Signaling Adaptor Protein/genetics , Polymorphism, Genetic , Adult , Alleles , Brazil/epidemiology , Colitis, Ulcerative/epidemiology , Colitis, Ulcerative/genetics , Crohn Disease/epidemiology , Crohn Disease/genetics , Female , Follow-Up Studies , Genotype , Humans , Interleukin 1 Receptor Antagonist Protein/genetics , Interleukin 1 Receptor Antagonist Protein/metabolism , Linkage Disequilibrium , Male , Nod2 Signaling Adaptor Protein/metabolism , Polymerase Chain Reaction , Prevalence , Retrospective Studies
6.
Helicobacter ; 11(1): 2-9, 2006 Feb.
Article in English | MEDLINE | ID: mdl-16423084

ABSTRACT

BACKGROUND: Helicobacter species are associated with inflammatory bowel disease in rodents and in nonhuman primates. Therefore, we prospectively investigated the presence of Helicobacter species in the intestinal mucosa of patients with and without Crohn's disease by culture and polymerase chain reaction (PCR) assays. MATERIALS AND METHODS: Mucosal fragments were obtained from the ileum, different colon regions, and rectum of 43 patients with Crohn's disease and of 74 patients without inflammatory bowel disease. RESULTS: Helicobacter pylori strains, identified by 16S rRNA gene sequencing, were more frequently isolated and PCR-detected in the intestinal mucosa of patients with ulcerative colitis-like Crohn's disease than in intestinal mucosa of the control group. Otherwise, anti-H. pylori immunoglobulin G levels were significantly lower in fibrostenosing and fistulating Crohn's disease subgroups. No other Helicobacter species were found in the intestinal mucosa of the patients. CONCLUSIONS: Although our results suggest an association between the presence of H. pylori in the intestine and ulcerative colitis-like phenotype of Crohn's disease, H. pylori infection in the actual causality of Crohn's disease is still to be determined.


Subject(s)
Crohn Disease/microbiology , Helicobacter pylori/isolation & purification , Intestinal Mucosa/microbiology , Adolescent , Adult , Aged , Case-Control Studies , Crohn Disease/etiology , DNA, Bacterial/analysis , Female , Helicobacter Infections/microbiology , Helicobacter pylori/genetics , Humans , Immunoglobulin G/analysis , Male , Middle Aged , Polymerase Chain Reaction/methods , RNA, Ribosomal, 16S/genetics
7.
Rio de Janeiro; Guanabara Koogan; c2006. x,1203 p. ilus, tab, graf.
Monography in Portuguese | LILACS | ID: lil-478063
8.
Rio de Janeiro; Guanabara Koogan; 3 ed; 2006. 1203 p. ilus, tab, graf.
Monography in Portuguese | Sec. Munic. Saúde SP, AHM-Acervo, CAMPOLIMPO-Acervo, TATUAPE-Acervo | ID: sms-2899
9.
Rio de Janeiro; Guanabara Koogan; 3 ed; 2006. 1299 p. ilus.
Monography in Portuguese | Sec. Munic. Saúde SP, HSPM-Acervo | ID: sms-4421

ABSTRACT

Esta 3 ed da Gastroenterologia Essencial pretende seguir a mesma orientação das edições precedentes: compacta, informativa e atualizada. A boa acolhida das duas edições anteriores justifica a atual e constitui, para o autor e colaboradores, motivo de muita satisfação. Algumas mudanças foram introduzidas visando atender leitores e tratar de matéria que foi menos ventilada na 2 ed. O livro aumentou um pouco, agora tem 112 capítulos. Como sempre, os colaboradores fizeram um belo serviço, sobretudo se considerarmos que é muito mais difícil escrever compactamente do que sem limites. Aproveito, portanto, para agradecer a todos que escreveram para as 3 edições e dizer-lhes da minha admiração e gratidão


Subject(s)
Humans , Stomach Diseases , Digestive System/pathology
10.
Rio de Janeiro; Guanabara Koogan; 2005. 701 p. ilus, tab, graf.
Monography in Portuguese | Coleciona SUS | ID: biblio-927142

Subject(s)
Humans , Gastroenterology
11.
J Clin Microbiol ; 42(1): 384-6, 2004 Jan.
Article in English | MEDLINE | ID: mdl-14715785

ABSTRACT

In a search for Helicobacter species in the intestinal mucosae of 42 patients with ulcerative colitis (UC) and 74 without UC, only H. pylori was found. Although the bacterium was detected in UC patients by culture (7.1%) and nested PCR (19.0%), its presence was not associated with the disease (P = 0.13).


Subject(s)
Colitis, Ulcerative/microbiology , Helicobacter/isolation & purification , Intestinal Mucosa/microbiology , Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged
12.
J Clin Gastroenterol ; 35(4): 315-20, 2002 Oct.
Article in English | MEDLINE | ID: mdl-12352294

ABSTRACT

BACKGROUND: Although no regimen can eradicate in 100% of patients, factors that may affect the eradication rates have been poorly studied. GOAL: To evaluate factors associated with treatment failure. STUDY: One hundred patients were treated with pantoprazole plus clarithromycin and furazolidone for eradication. Clarithromycin and furazolidone resistance was evaluated by the agar dilution method. Point mutations in 23S rRNA genes related to clarithromycin resistance were investigated by polymerase chain reaction and restriction length fragment polymorphism and A by polymerase chain reaction. The data were analyzed by logistic regression. RESULTS: eradication occurred in 85 of 97 patients who completed the treatment (87.6%; 95% CI = 79.0-93.1). All strains were susceptible to furazolidone, and nine were resistant to clarithromycin (A2142G or A2143G mutation was detected in all of them). The treatment failure was significant and independently associated with clarithromycin resistance (OR = 7.79; 95% CI = 1.73-35.01), A-negative status (OR = 4.81; 95% CI = 1.14-20.14), and male gender (OR = 4.20; 95% CI = 1.01-17.78), but not with the type of disease, mean age, smoking, alcohol consumption, and the degree of the antral and oxyntic gastritis. CONCLUSION: Resistance to clarithromycin, A-negative status, and gender were predictive factors of eradication failure.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Anti-Infective Agents, Local/therapeutic use , Anti-Ulcer Agents/therapeutic use , Benzimidazoles/therapeutic use , Clarithromycin/therapeutic use , Developing Countries , Furazolidone/therapeutic use , Helicobacter Infections/drug therapy , Helicobacter pylori/drug effects , Sulfoxides/therapeutic use , Treatment Failure , 2-Pyridinylmethylsulfinylbenzimidazoles , Adolescent , Adult , Aged , Anti-Bacterial Agents/administration & dosage , Anti-Infective Agents, Local/administration & dosage , Anti-Ulcer Agents/administration & dosage , Benzimidazoles/administration & dosage , Clarithromycin/administration & dosage , Drug Resistance, Bacterial , Drug Therapy, Combination , Female , Furazolidone/administration & dosage , Humans , Male , Middle Aged , Omeprazole/analogs & derivatives , Pantoprazole , Risk Factors , Sex Factors , Sulfoxides/administration & dosage
13.
GED gastroenterol. endosc. dig ; 20(6): 225-229, nov.-dez. 2001. ilus
Article in English | LILACS | ID: lil-324845

ABSTRACT

Hamartoma biliar único e volumoso é uma lesäo relativamente rara. Descreve-se o caso de uma lesäo de aproximadamente 5cm, localizada no segmento IV do fígado, sem outras alterações aparentes. Essa lesäo foi estudada por métodos de imagem, laparoscopia e biópsia. O tratamento é discutido, especialmente considerando o risco de malignizaçäo, com revisäo da literatura


Subject(s)
Humans , Female , Adult , Hamartoma , Biopsy , Diagnostic Imaging , Laparoscopy
14.
GED gastroenterol. endosc. dig ; 18(3): 113-116, maio-jun. 1999. ilus
Article in Portuguese | LILACS | ID: lil-312504

ABSTRACT

Paciente de 47 anos, tabagista e etilista pesado, apresntou quadro de dor abdominal, emagrecimento, febre vespertina e sudorese noturna. A endoscopia digestiva alta mostrou lesäo sugestiva de neoplasia esofagiana avançada, acometendo amplamente o órgäo. A bipsia diagnosticou carcinoma indiferenciado de pequenas células. O paciente foi submetido a quimioterapia, porém veio a falecer quatro meses após o diagnóstico. O presente caso é particularmente interessante por sua apresentaçäo múltipla no esôfago e sua raridade


Subject(s)
Male , Humans , Carcinoma, Small Cell/chemistry , Esophageal Neoplasms/chemistry , Endoscopy
15.
GED gastroenterol. endosc. dig ; 17(5): 185-190, set.-out. 1998. ilus, tab
Article in Portuguese | LILACS | ID: lil-298918

ABSTRACT

Uma mulher de 64 anos, portadora de cirrose hepática por vírus C, foi admitida com hostória de platipnéia e ortodeoxia, sem evidências de doença cardíaca ou pulmonar primárias. O diagnóstico da síndrome hepatopulmonar foi estabelecido através de ecodopplercardiograma transtorácico contrastado (bolhas) e cintilografia com macroagregados de albumina marcados com Tc99. Síndrome hepatopulmonar é uma causa potencialmente reversível de dispnéia em hepatopatas crônicos, devendo ser considerada no diagnóstico diferencial


Subject(s)
Female , Middle Aged , Dyspnea , Liver Diseases , Vasodilation , Liver Cirrhosis
16.
Rio de Janeiro; Guanabara Koogan; 1998. 793 p. ilus, graf.
Monography in Portuguese | LILACS | ID: lil-221123
17.
GED gastroenterol. endosc. dig ; 15(4): 129-34, jul.-ago. 1996. ilus, tab
Article in Portuguese | LILACS | ID: lil-180210

ABSTRACT

Com a finalidade de comparar métodos propedêuticos para um estadiamento tumoral eficaz, estudamos a ultra-sonografia (US), a tomografia computadorizada (TC) e a laparoscopia (LAP). No período de fevereiro de 1994 a janeiro de 1996, avaliamos 60 pacientes, com idade média de 61,2 + 15,7 anos no Hospital dos Servidores do Estado de Minas Gerais, em Belo Horizonte, portadores de tumores do esôfago e intra-abdominais. Foi analisado, principalmente, o acometimento metastático do fígado, do peritônio parietal, linfonodos e da serosa visceral. A laparoscopia foi o método que apresentou melhor rendimento isoladamente, sobressaindo-se em relaçao ao acometimento do peritônio pariental, com sensibilidade de 100 por cento. A TC foi o segundo método mais eficiente na detecçao de metástase em geral, sendo mais importante da identificaçao de adenomegalias, sem contudo poder diferenciar um acometimento reacional de uma metástase. A US foi o método menos eficaz considerando os casos e nas condiçoes do trabalho. Na avaliaçao geral dos métodos isoladamente, a sensibilidade, a especificidade e os valores preditivos positivos e negativos foram, respectivamente, para a US, de 51 por cento, 92,3 por cento, 96 por cento e 34,3 por cento; para a TC, de 87,8 por cento, 95,6 por cento, 97,3 por cento e 71 por cento; e para a LAP, de 89,4 por cento, 100 por cento, 100 por cento e 72,2 por cento. Na avaliaçao dos métodos quando associados, a sensibilidade, a especificidade e os valores preditivos positivos e negativos foram respectivamente, para a US+ TC, de 80,4 por cento, 85,7 por cento, 94,9 por cento e 57,1 por cento; para US+LAP, de 91,3 por cento, 92,8 por cento, 97,7 por cento e 76,5 por cento; para TC+LAP, de 95,8 por cento, 100 por cento, 100 por cento e 86,7 por cento; e para US+ TC+LAP os valores foram idênticos quando comparados com a TC+LAP. Consluímos que um estadiamento eficiente pode ser resumido à LAP e TC, associados a métodos específicos para cada caso, e, dessa forma, permitir uma decisao terapêutica adequada.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Adenocarcinoma/diagnosis , Gastrointestinal Neoplasms/diagnosis , Laparoscopy , Neoplasm Staging , Tomography, X-Ray Computed , Ultrasonography , Adenocarcinoma/secondary , Aged, 80 and over , Gastrointestinal Neoplasms/secondary
18.
GED gastroenterol. endosc. dig ; 15(2): 69-73, mar.-abr. 1996. ilus
Article in Portuguese | LILACS | ID: lil-170104

ABSTRACT

Os autores relatam caso de linfoma primário do baço, em paciente do sexo masculino, leucoderma, 38 anos, encaminhado para avaliaçäo de esplenomegalia e perda de peso. Após extensos estudos propedêuticos, os quais foram incapazes de demonstrar evidências da doença linfoproliferativa, o diagnóstico de linfoma linfocítico difuso foi estabelecido por cirurgia (esplenectomia). O estudo imuno-histoquímico foi compatível com linfoma de célula B. Manifestaçöes neurológicas, tais como paresia e parestesia das pernas, dor lombar, retençäo urinária progressiva e constipaçäo intestinal apareceram no oitavo dia de pós-operatório. Tomografia computadorizada subsequente revelou infiltraçäo linfomatosa da coluna lombar. A raridade da doença associada à ausência de critérios diagnósticos bem definidos e a conhecimento imcompleto da história natural da condiçäo destacam a necessidade de estudos controlados e com longo tempo de acompanhamento, possibilitando abordagem adequada da doença


Subject(s)
Humans , Male , Adult , Lymphoma/pathology , Splenic Neoplasms/pathology , Biopsy , Diagnosis, Differential , Lymphoma/surgery , Splenic Neoplasms/surgery , Splenectomy
19.
GED gastroenterol. endosc. dig ; 14(5): 243-6, set.-out. 1995. ilus
Article in Portuguese | LILACS | ID: lil-178570

ABSTRACT

Os autores descrevem caso de síndrome de choque tóxico complicando diarréia por Staphylococcus aureus em paciente diabética de 60 anos, que foi admitida apresentando também febre, vômitos e dor abdominal. Evoluiu com hepatite bacteriana, rash cutâneo e mialgia intensa. A hemocultura confirmou a presença do Staphylococcus aureus. Foi iniciada terapêutica específica após o diagnóstico, com melhora progressiva dos sintomas. Acompanhada ambulatorialmente, nao houve recorrências, estando a paciente totalmente curada. Considerando a aparente raridade do diagnóstico da síndrome em nosso meio, os autores chamam a atençao para essa possibilidade e para que os médicos fíquem atentos aos informes clínicos compatíveis, visando o diagnóstico e a terapêutica corretos.


Subject(s)
Humans , Female , Middle Aged , Shock, Septic/complications , Hepatitis/etiology , Bacterial Infections/etiology , Hepatitis/diagnosis , Hepatitis/therapy , Staphylococcus aureus/isolation & purification , Syndrome
20.
GED gastroenterol. endosc. dig ; 14(2): 49-53, maio-jun. 1995. tab
Article in English | LILACS | ID: lil-172075

ABSTRACT

Este trabalho analisa as alteraçöes observadas à endoscopia em pacientes portadores de hipertensäo portal por cirrose e esquistossomose e as correlaciona com os achados histológicos, presença ou näo de H. pylori e funçäo hepática do paciente. Os pacientes cirróticos apresentaram prevalência significativamente mais alta de úlcera péptica, correlaçäo positiva entre presença de gastrite crônica e de H. pylori, assim como relaçäo direta entre o grau das varizes e a presença de gastropatia hipertensiva (GH). Näo houve correlaçäo estatisticamente significativa entre presença de H. pylori e o grupo do paciente, entre a presença de GH e o índice de Child Pagh, nem entre a prevalência de H. pylori e de GH. Finalmente, näo houve diferença significativa na prevalência de gastrite crônica entre os grupos de pacientes


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Liver Cirrhosis/complications , Fibrosis/complications , Liver/physiopathology , Gastritis/etiology , Helicobacter pylori/isolation & purification , Hypertension, Portal/complications , Schistosomiasis mansoni/complications , Peptic Ulcer/etiology , Aged, 80 and over , Biopsy , Chi-Square Distribution , Chronic Disease , Liver Cirrhosis/physiopathology , Endoscopy , Hypertension, Portal/physiopathology , Prevalence , Schistosomiasis mansoni/physiopathology
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