Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 11 de 11
Filter
1.
Rev. Soc. Bras. Med. Trop ; 50(1): 141-144, Jan.-Feb. 2017. graf
Article in English | LILACS | ID: biblio-842824

ABSTRACT

Abstract: Here, we describe a case of hepatosplenic schistosomiasis that progressed to widespread persistent dermatophytosis. Significant T and B lymphocytopenia was confirmed. T-cell deficit is associated with increased susceptibility to fungal infections of skin and mucous membranes. The accumulation of a large amount of blood cells in the spleen could have played a crucial role in the development of lymphocytopenia in the present case. Alternatively, the schistosomiasis-induced increase in prostaglandin E2 levels could have inhibited the production of interferon-γ, a cytokine fundamental to fungal resistance. This case shows the potential of hepatosplenic schistosomiasis to impair the immune response.


Subject(s)
Humans , Male , Adult , Tinea/immunology , Schistosomiasis mansoni/immunology , Opportunistic Infections/microbiology , Splenic Diseases/complications , Splenic Diseases/immunology , Tinea/etiology , Schistosomiasis mansoni/complications , Chronic Disease , Immunocompromised Host
2.
Arq. gastroenterol ; 48(2): 124-130, Apr.-June 2011. tab
Article in English | LILACS | ID: lil-591162

ABSTRACT

CONTEXT: Blood transfusion is one of the major risk factors for the transmission of the hepatitis B (HBV) and C (HCV) viruses. However, there are no reports describing the endoscopic transmission of these viruses in patients with the hepatosplenic form of schistosomiasis. OBJECTIVE: To estimate the prevalence of serological markers of HBV and HCV in patients with the hepatosplenic form of schistosomiasis and evaluate the possible risk factors associated with these infections. METHODS: A cross-sectional study was conducted on 230 patients with hepatosplenic form of schistosomiasis who attended a university hospital in Recife, Northeastern Brazil, from February to August 2008. The patients answered a standardized questionnaire about risk factors. Serum samples were analyzed for anti-HBc total, anti-HBs, HBsAg, and anti-HCV using enzyme-linked immunosorbent assays. Univariate analysis and multiple logistic regression were performed. RESULTS: The prevalence was 30 percent for anti-HBc total and/or HBsAg and 7.4 percent for anti-HCV. There was a higher frequency of the serological markers in females and in patients aged .50 years. A significant association was detected between the presence of anti-HCV and the receipt of six or more blood transfusions. There was no association of history and number of digestive endoscopies with the serological markers analyzed. CONCLUSIONS: We observed a higher prevalence of serological markers for HBV and a lower prevalence of anti-HCV. Our results indicate that females and patients of an advanced age are the most affected categories and that patients that received multiple transfusions are at a higher probability of HCV infection.


CONTEXTO: A transfusão sanguínea destaca-se entre os fatores de risco implicados na transmissão dos vírus das hepatites B (VHB) e C (VHC); entretanto não há relatos da transmissão endoscópica destes vírus em pacientes com esquistossomose na forma hepatoesplênica. OBJETIVO: Estimar a prevalência dos marcadores sorológicos do VHB e VHC em pacientes com esquistossomose hepatoesplênica e avaliar os possíveis fatores de risco associados a essas infecções. MÉTODOS: Estudo do tipo transversal, com 230 pacientes com esquistossomose hepatoesplênica atendidos em um Hospital Universitário de Recife, PE, Brasil, no período de fevereiro a agosto de 2008. Os pacientes responderam a um questionário padronizado sobre os fatores de risco. Nas amostras de soro foram pesquisados o anti-HBc total, o anti-HBs, o HBsAg e o anti-VHC por ensaio imunoenzimático. As análises estatísticas utilizadas foram a univariada e a regressão logística múltipla. RESULTADOS: Encontrou-se prevalencia de 30 por cento para anti-HBc total e/ou HBsAg e 7,4 por cento para o anti-VHC. Houve maior frequencia de pacientes positivos do sexo feminino e idade .50 anos para os marcadores analisados. Verificou-se associação significativa entre a presenca do anti-HCV e a categoria de seis ou mais transfusões. Nao foi constatada associação do antecedente e numero de endoscopias digestivas com os marcadores sorologicos analisados. CONCLUSÕES: Constatou-se maior prevalência de marcadores sorológicos do VHB e menor prevalência para o anti-VHC. Evidenciou-se o sexo feminino e paciente de idade avançada como as categorias mais atingidas e maior probabilidade da infecção pelo VHC em pacientes politransfundidos.


Subject(s)
Female , Humans , Male , Middle Aged , Biomarkers/blood , Hepatitis B/diagnosis , Hepatitis C/diagnosis , Liver Diseases, Parasitic/blood , Liver Diseases, Parasitic/immunology , Schistosomiasis mansoni/complications , Splenic Diseases/immunology , Blood Transfusion/adverse effects , Cross-Sectional Studies , Hepatitis B Antibodies/blood , Hepatitis B Surface Antigens/blood , Hepatitis B/immunology , Hepatitis C Antibodies/blood , Hepatitis C/immunology , Risk Factors , Splenic Diseases/parasitology
3.
Acta cir. bras ; 21(5): 285-290, Sept.-Oct. 2006. tab
Article in English, Portuguese | LILACS | ID: lil-438752

ABSTRACT

PURPOSE: To measure the levels of NO production by monocytes in patients with the hepatosplenic form of schistosomiasis mansoni who underwent splenectomy, ligature of the left gastric vein and auto implantation of spleen tissue in the major omentum. METHODS: Four groups of volunteers were enrolled in the investigation: G1 - 12 patients with S. mansoni infection in its hepatosplenic form without any kind of treatment (SMH); G2 - 13 SMH patients who underwent medical treatment and portal hypertension decompression splenectomy and ligature of the left gastric vein (SMH/SLGV); G3 - 19 patients similar to the later group, but additionally received auto implantation of spleen morsels in the major omentum (SMH/SLGV/AI); and G4 - 15 individuals with no S. mansoni infection coming from the same geographical area and presenting similar socio economical status (CG). Nitrite production by monocytes was determined by a standard Griess reaction adapted to microplates. The results were presented by mean ± SD for each group. Significant differences in NO production by monocytes were determined by Tukey-Kramer multicomparisons test. Probability values of 0.05 were considered significant. RESULTS: Patients from G1 (SMH) showed lower level of NO production by monocytes (5.28 ± 1.28µmol/ml). Patients from G2 (SMH/SLGV) showed similar results (6.67 ± 0.44µmol/ml - q = 2.681 p > 0.05). Individuals of G4 (CG) showed higher level of NO production by monocytes (8.19 ± 2.74µmol/ml). Patients from G3 (SMH/SGLV/AI) showed similar NO production by PBMC as compared to individuals of G4 (CG) - (7.41 ± 1.65µmol/ml - q = 1.615 p > 0.05). The volunteers from G4 (CG) and G3 (SMH/SLGV/AI) showed significantly greater levels of NO production by monocytes as compared to those from G1 (SMH) - (q = 5.837 p < 0.01, and q = 4.285 p < 0.05). CONCLUSION: Collectively, the results point to a restoration of NO normal production by monocytes in SH...


OBJETIVO: Mensurar os níveis de produção de ON por monócitos do sangue periférico (MSP) em portadores de esquistossomose na forma hepatoesplênica que tinham se submetido a esplenectomia, ligadura da veia gástrica esquerda e auto-implante de tecido esplênico no omento maior. MÉTODOS: Quatro grupos de voluntários foram envolvidos na investigação: G1 - 12 portadores de esquistossomose hepatoesplênica sem nenhuma forma de tratamento (EHE); G2 - 13 portadores de EHE que receberam tratamento clínico e se submeteram cirurgia para descompressão do sistema porta esplenectomia e ligadura da veia gástrica esquerda (EHE/ELGE); G3 - 19 pacientes similares ao do último grupo, mas que receberam também auto-implante de fragmentos de tecido esplênico no omento maior (EHE/ELGE/AI); e G4 - 15 indivíduos sem infecção pelo S. mansoni advindos da mesma área geográfica e apresentando as mesmas condições sócio-econômicas (GC). A produção de ON pelos MSP foi determinada pela reação padrão de Griess, adaptada para poços em microplaca. Os resultados foram expressos por suas médias ± DP para cada grupo. Diferenças significantes nas medias de produção de ON pelos MSP foram determinadas pelo teste de comparações múltiplas de Tukey-Kramer. Foram aceito os limites de significância de p < 0,05. RESULTADOS: Os pacientes portadores de EHE não tratados (G1) evidenciaram os níveis mais baixos de produção de ON pelos MSP (5,28 ± 1,28µmol/ml). Os pacientes do G2 (EHE/ELGE) evidenciaram resultados similares (6,67 ± 0,44µmol/ml - q = 2,681 p > 0.05). Os indivíduos do G4 (GC) evidenciaram os mais altos níveis de produção de ON pelos MSP (8,19 ± 2,74µmol/ml). Os pacientes do G3 (EHE/ELGE/AI) evidenciaram produção de ON produzido pelos MSP similares aos indivíduos do - G4 (GC) (7.41 ± 1.65µmol/ml - q = 1.615 p > 0.05). Os voluntários do G4 (GC) e os do G3 (EHE/ELGE/AI) evidenciaram de forma significante maiores níveis de produção de ON pelos MS...


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Liver Diseases, Parasitic/immunology , Monocytes/metabolism , Nitric Oxide/biosynthesis , Omentum/immunology , Splenectomy , Schistosomiasis mansoni/immunology , Cells, Cultured/metabolism , Hypertension, Portal/immunology , Hypertension, Portal/surgery , Ligation , Liver Diseases, Parasitic/surgery , Omentum/surgery , Schistosomiasis mansoni/surgery , Splenic Diseases/immunology , Splenic Diseases/surgery , Splenosis/immunology , Splenosis/surgery , Transplantation, Autologous , Veins/immunology , Veins/surgery
4.
Rev. Soc. Bras. Med. Trop ; 39(5): 439-445, set.-out. 2006. graf
Article in Portuguese | LILACS | ID: lil-439893

ABSTRACT

Esquistossomose mansônica persiste como problema médico-social no nordeste brasileiro. Em crianças, o tratamento cirúrgico inclui esplenectomia e auto-implante esplênico. Este procedimento reduz a septicemia pós-esplenectomia. O objetivo deste estudo foi analisar a taxa de fagocitose e viabilidade de fagócitos mononucleares em portadores de esquistossomose hepatoesplênica, submetidos à cirurgia, de 1991 a 2001. Dos 22 indivíduos analisados, 11 eram portadores de esquistossomose hepatoesplênica, submetidos à esplenectomia e auto-implante esplênico (Grupo estudo) e 11 eram sadios (Grupo Controle). Os grupos tinham média de idades similar e procediam da mesma zona endêmica (Timbaúba-PE). Não se evidenciou diferença na taxa de fagocitose comparando-se o grupo controle (36,1 por cento±4,9 por cento) e o grupo estudo (33,5 por cento±5,7 por cento), p=0,2773. Todavia, a viabilidade dos fagócitos após estímulo com lipopolissacarídio foi maior (94 por cento) no grupo controle, quando comparado ao grupo estudo (65 por cento), p<0,001. Pode-se concluir que a esplenose assegura função fagocitária normal em monócitos, entretanto, os fagócitos possuem menor viabilidade frente a um estímulo nocivo e duradouro.


Mansonic schistosomiasis remains a medical-social issue in Northeastern Brazil. In children, surgical treatment includes splenectomy and spleen autoimplantation. This procedure reduces post-splenectomy sepsis. The aim of this study was to analyze the phagocyte rate and the cellular viability of monocytes in patients with hepatosplenic schistosomiasis, who underwent splenectomy and spleen autoimplantation from 1991 to 2001. Of the 22 individuals analyzed, 11 were patients who underwent splenectomy and spleen autoimplantation (Study group) and 11 were healthy individuals from the same region (Control group). Both groups presented similar mean age. No difference was found in the phagocyte rate between the control group (36.1 percent±4.9 percent) and study group (33.5 percent±5.7 percent). However, phagocyte viability after stimulation with lipopolysaccharide was higher (94 percent) in control group, when compared to the study group (65 percent), p<0.001. It is possible to hypothesize that monocytes from the study group patients presented a reduced response to the microorganism challenge, in the face of a harmful and long-lasting stimulus.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Liver Diseases, Parasitic/parasitology , Monocytes/physiology , Phagocytosis/physiology , Schistosomiasis mansoni/surgery , Spleen/transplantation , Splenic Diseases/parasitology , Case-Control Studies , Cell Survival , Cross-Sectional Studies , Liver Diseases, Parasitic/immunology , Liver Diseases, Parasitic/surgery , Monocytes/immunology , Prospective Studies , Phagocytosis/immunology , Splenectomy , Schistosomiasis mansoni/immunology , Spleen/immunology , Splenic Diseases/immunology , Splenic Diseases/surgery , Transplantation, Autologous
5.
Rev. Soc. Bras. Med. Trop ; 38(1): 38-42, jan.-fev. 2005. tab, graf
Article in Portuguese | LILACS | ID: lil-420212

ABSTRACT

Investigamos em portadores de esquistossomose hepatoesplênica após esplenectomia com ou sem auto-implante esplênico: índice de aderência, produção de superóxido (SP) e de TNF-alfa em monócitos, tratados ou não com tuftsina. Avaliamos três grupos: voluntários sadios CG (grupo controle) (n=12); esplenectomizados com auto-implante AG (n=18) e esplenectomizados sem auto-implante WAG (n=9). índice de aderência e TNF-alfa não diferiram entre os grupos. SP foi semelhante em CG e AG na 1ª hora após estimulação celular. SP foi maior em todos intervalos de tempo nos grupos CG e AG, comparados ao WAG. O tratamento com tuftsina recuperou o padrão de normalidade de SP em AG, com aumento da 1ª para a 2ª hora nos níveis do CG. O tratamento com tuftsina não alterou SP em WAG, permanecendo reduzida em todos intervalos. O auto-implante esplênico parece recuperar e manter os parâmetros imunológicos avaliados, que têm participação importante na resposta do hospedeiro às infecções.


Subject(s)
Adolescent , Adult , Female , Humans , Male , Liver Diseases, Parasitic/surgery , Monocytes/physiology , Schistosomiasis mansoni/surgery , Spleen/transplantation , Splenic Diseases/surgery , Case-Control Studies , Cell Adhesion/immunology , Liver Diseases, Parasitic/immunology , Liver Diseases, Parasitic/parasitology , Monocytes/immunology , Splenectomy , Schistosomiasis mansoni/immunology , Spleen/immunology , Splenic Diseases/immunology , Splenic Diseases/parasitology , Superoxides/immunology , Treatment Outcome , Transplantation, Autologous/methods , Tuftsin/administration & dosage , Tumor Necrosis Factor-alpha/biosynthesis
6.
Rev. Inst. Med. Trop. Säo Paulo ; 42(6): 313-20, Nov.-Dec. 2000. tab
Article in English | LILACS | ID: lil-274888

ABSTRACT

PURPOSE: To evaluate the frequency and the consequences of the co-infection of hepatitis B and C viruses in patients with hepatosplenic schistosomiasis (HSS). METHODS: B and C serologic markers, exposure to risk factors, biochemical assays, upper gastrointestinal endoscopies, and abdominal ultrasonograms were evaluated in 101 patients with HSS from 1994 to 1997. Whenever possible, PCR was tested and histopathological studies were reviewed. RESULTS: At least one HBV virus marker was found in 15.8 percent, and anti-HCV was detected in 12.9 percent of the subjects. The seropositive subjects tended to be older than the seronegative ones. A history of blood transfusion was significantly related to the presence of anti-HCV. Three (18.75 percent) out of 16 subjects exposed to B virus were HBsAg positive. Eleven (84.6 percent) out of thirteen patients who were anti-HCV positive demonstrated viral activity. Patients with ongoing viral infection presented a higher average level of liver aminotransferases, a higher frequency of cell decompensation and a higher rate of chronic hepatitis. Portal hypertension parameters were not influenced by viral exposure. CONCLUSIONS: The rate of hepatitis B and C viruses serologic markers observed in the patients with HSS was higher than the control group. The co-infection was responsible for a higher frequency of cell decompensation


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Hepatitis B Antibodies/blood , Hepatitis C Antibodies/blood , Schistosomiasis mansoni/immunology , Splenic Diseases/immunology , Biomarkers/blood , Case-Control Studies , Chi-Square Distribution , Hepatitis B/complications , Hepatitis C/complications , Risk Factors , Schistosomiasis mansoni/complications , Splenic Diseases/complications , Splenic Diseases/parasitology , Statistics, Nonparametric
7.
Mem. Inst. Oswaldo Cruz ; 94(6): 815-22, Nov.-Dec. 1999.
Article in English | LILACS | ID: lil-251345

ABSTRACT

Histological, ultrastructural, morphometric and immunohistochemical data obtained from the study of spleens removed by splenectomy from 34 patients with advanced hepatosplenic schistosomiasis revealed that the main alterations were congestive dilatation of the venous sinuses and diffuse thickening of the splenic cords. Splenic cord thickening was due to an increase of its matrix components, especially type IV collagen and laminin, with the conspicuous absence of interstitial collagens, either of type I or type III. Deposition of interstitial collagens (types I and III) occurred in scattered, small focal areas of the red pulp, but in the outside of the walls of the venous sinuses, in lymph follicles, marginal zone, in the vicinity of fibrous trabeculae and in sidero-sclerotic nodules. However, fibrosis was not a prominent change in schistosomal splenomegaly and thus the designation "fibro-congestive splenomegaly" seems inadequate. Lymph follicles exhibited variable degrees of atrophy, hyperplasia and fibrous replacement, sometimes all of them seen in different follicles of the same spleen and even in the same examined section. Changes in white pulp did not seem to greatly contribute to increasing spleen size and weight, when compared to the much more significant red pulp enlargement


Subject(s)
Animals , Humans , Extracellular Matrix/metabolism , Liver Diseases, Parasitic/pathology , Schistosomiasis/pathology , Splenic Diseases/pathology , Extracellular Matrix/parasitology , Fluorescent Antibody Technique , Microscopy, Electron , Microscopy, Fluorescence , Schistosomiasis/immunology , Schistosomiasis/parasitology , Schistosomiasis/surgery , Spleen/immunology , Spleen/parasitology , Spleen/ultrastructure , Splenectomy , Splenic Diseases/immunology , Splenic Diseases/parasitology
8.
EMHJ-Eastern Mediterranean Health Journal. 1998; 4 (1): 189-190
in English | IMEMR | ID: emr-156525
9.
Rev. Soc. Bras. Med. Trop ; 29(5): 441-5, Sept.-Oct. 1996. tab
Article in English | LILACS | ID: lil-187187

ABSTRACT

Antibody response to Salmonella typhi O and H antigens was evaluated in 24 individuals with either hepatointestinal or hepatosplenic schistosomiasis mansoni before and after typhoid vaccination, and compared with that of non-infected controls. Before vaccination, Schistosoma-infected patients showed a higher frequency of positive antibody to O antigen and the same frequency to H antigen when compared with that of healthy individuals. However, those with hepatosplenic schistosomiasis showed higher titres of antibody to H antigen than those with hepatointestinal disease or healthy individuals. Infected subjects, particularly those with hepatointestinal disease, showed a decreased response after typhoid vaccine. This diminished ability to mount an immune response towards typhoid antigens during schistosomiasis may interfere with the clearance of the bacteria from blood stream and, therefore, play a role in the prolonged survival of salmonella as observed in some patients with chronic salmonellosis associated with schistosomiasis.


Subject(s)
Male , Adolescent , Adult , Female , Humans , Antibodies, Bacterial/blood , Salmonella typhi/immunology , Schistosomiasis mansoni/immunology , Typhoid Fever/immunology , Intestinal Diseases, Parasitic/immunology , Liver Diseases, Parasitic/immunology , Splenic Diseases/immunology
10.
Rev. Soc. Bras. Med. Trop ; 24(2): 97-9, abr.-jun. 1991. tab
Article in English | LILACS | ID: lil-141301

ABSTRACT

Tendo sido observado que infecçäo por Schistosoma mansoni pode causar imunodepressäo celular. Neste trabalho foi avaliado se a imunodepressäo associada à esquistossomose pode ser revertida pelo tratamento específico. A resposta imune celular foi determinada através de testes cutâneos de hipersensibilidade retardada em 22 pacientes com a forma hepatoesplênica da esquistossomose um ano após tratamento com oxamniquine e comparado com aquela observada em um grupo de pacientes hepatoesplênicos näo tratados. Somente 27 por cento destes pacientes apresentaram alergia a todos os antígenos testados, em contraste com 80 por cento de indivíduos anérgicos observados entre aqueles näo tratados. Embora a maioria dos indivíduos tratados tenha mostrado algum grau de resposta aos antígenos testados, alguns indivíduos permaneceram anérgicos após o tratamento específico. Anergia a todos os antigenos aplicados näo foi observada em nenhum dos indivíduos normais. Nossos dados indicam que pacientes esquistossomóticos podem recuperar sua reatividade imune após a eliminaçäo do verme pelo tratamento específico


Subject(s)
Adult , Middle Aged , Humans , Male , Female , Liver Diseases, Parasitic/therapy , Schistosomiasis mansoni/therapy , Splenic Diseases/parasitology , Splenic Diseases/therapy , T-Lymphocytes/immunology , Lymphocyte Activation , Liver Diseases, Parasitic/immunology , Schistosomiasis mansoni/immunology , Splenic Diseases/immunology
11.
Rev. Soc. Bras. Med. Trop ; 23(1): 27-31, jan.-mar. 1990. tab
Article in English | LILACS | ID: lil-97988

ABSTRACT

A imunidade celular foi avaliada em 29 pacientes com as formas hepatoesplénica ou hepatointestinal, da esquistossomose mansoni, através de testes intradérmicos com antígenos näo relacionados ao Schistosoma. Imunodepressäo foi detectada em 26% dos pacientes com a forma hepatointestinal e em 50% daqueles com a forma hepatoesplênica. A imunodepressäo celular foi relacionada com a carga parasitária e o tamanho do baço. Esta imunodepressäo celular pode dificultar a eliminaçäo de patógenos intracelulares tanto na forma hepatoesplênica quanto na forma hepatointestinal da esquistossomose


Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Liver Diseases, Parasitic/immunology , Schistosomiasis mansoni/immunology , Splenic Diseases/immunology , T-Lymphocytes/immunology , Immune Tolerance/immunology , Splenic Diseases/parasitology
SELECTION OF CITATIONS
SEARCH DETAIL