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1.
Journal of the Egyptian Society of Parasitology. 2004; 34 (1): 367-84
em Inglês | IMEMR | ID: emr-66734

RESUMO

A sample of 1422 individuals was included in the study, using multistage sampling technique. Exposures and demographic characteristics were obtained through a pre-designed questionnaire. Antibody to HCV was assessed using micro-particle enzyme immunoassay [MEIA] enzyme assay by IMX and the HCV RNA was tested by real-time PCR technique using ABI Prism 7700 system. The seroprevalence of antibodies to HCV was 23.4% and 27.4% in urban and rural areas, respectively, with an overall prevalence of 25.8%. This reflected prior HCV infection, but not necessarily a current liver disease. The prevalence was higher among males than females and increased sharply with age, from 4.8% in those <20 years old to 41.9% in the older ages [>/40 years]. Those who were not educated and farmers had a significantly high prevalence. The significant predictors of HCV infection were previous parenteral therapy for schistosomiasis [OR = 4.3, 95%, CI = 3.6-7.9], among those over 20 years of age [3.5, 2.18-5.8], blood transfusion [4.1, 2.4-6.9], invasive procedures [surgery and endoscopy] and the use of contaminated syringes and needles. Also, shaving at community barbers added a significance to the model


Assuntos
Humanos , Masculino , Feminino , Prevalência , Testes Sorológicos , Reação em Cadeia da Polimerase , Fatores de Risco , Esquistossomose mansoni , Anticorpos Anti-Hepatite C , População Rural , População Urbana , Vigilância Imunológica , Técnicas Imunoenzimáticas , Transfusão de Sangue
2.
Journal of the Egyptian Society of Parasitology. 2004; 34 (1): 385-400
em Inglês | IMEMR | ID: emr-66735

RESUMO

In this study, the Knodell histology activity index and the semi- quantitative reproducible description of the various morphological lesions of chronic hepatitis were applied on 109 liver biopsies taken from Egyptian patients infected with hepatitis C virus [HCV]. It was found that the presented histopathological features may be unusual for any of the known scoring systems. Therefore, a new system was suggested for grading and staging of liver diseases in Egyptian patients infected with HCV. Accordingly, the degrees of necro- inflammations are classified into 3 grades [1-3] and the progression of fibrosis is classified into 3 stages [1-3]. The reduced numbers of grades and stages proposed in this study may be attributed to the rapid course among Egyptians who differ in the environmental circumstances


Assuntos
Humanos , Masculino , Feminino , Biópsia por Agulha , Cirrose Hepática/classificação , Índice de Gravidade de Doença , Reação em Cadeia da Polimerase
3.
Journal of the Egyptian Society of Parasitology. 2004; 34 (1): 401-16
em Inglês | IMEMR | ID: emr-66736

RESUMO

In this study, 40 paraffin blocks liver tissues from HCV-PCR positive patients [HBV seronegative] were examined using DNA image cytometry to evaluate its role in diagnosing hepatocellular carcinoma [HCC] associated with hepatitis C virus [HCV] infection. Fluorescent in situ hybridization [FISH] technique using LSIZNF 217 chromosome 20q 13.2 probe was applied. The results showed a high percentage of S- phase fraction in cases of G2S2 and G3S3 with DNA diploidy. Only two cases of G3S3 showed DNA aneuploidy with a severe amplification of chromosome 20q 13.2. Consequently, DNA imaging cytometry is considered a good approach in differentiating dysplasia from well- differentiated HCC on the top of HCV infection. In conclusion, HCV has an acquired role in the development of HCC through the amplification of the aggressive tumor behavior oncogene LSIZNF 217 at chromosome 20q 13.2


Assuntos
Humanos , Masculino , Feminino , Análise Citogenética , Inclusão em Parafina , alfa-Fetoproteínas , Antígeno Carcinoembrionário , Hibridização in Situ Fluorescente , Cromossomos Humanos Par 20
4.
Journal of the Egyptian Society of Parasitology. 2004; 34 (1): 417-28
em Inglês | IMEMR | ID: emr-66737

RESUMO

The aim of this study was to evaluate the hematological manifestations occurring in patients suffering from chronic hepatitis C virus [HCV] infection. Positive HCV-RNA cases [109] were subjected to complete blood count [CBC], prothrombin time [PT], partial thromboplastin time [PTT], bleeding time [BT], coagulation time [CT], detection of fibrinogen degradation products [FDPs], measurement of plasma alpha- antitrypsin [AAT], then bone marrow [BM] aspiration and examination for 20 cases. The patients were classified into three groups according to the histopathological staging and grading of liver biopsy. The comparison between groups according to histopathological grading and staging for hematological and chemical parameters revealed a significant statistical difference in platelets count, S albumin, ALT and AST levels. The comparison between groups according to histopathological grading and staging for coagulation profile, AAT level and FDPs revealed a significant statistical difference between all parameters. Bone marrow aspiration and examination revealed mild hypocellularity with an increased number of lymphocytes and a relevance of plasmacytoid-lymphocytes


Assuntos
Humanos , Masculino , Feminino , Fígado/patologia , Testes Hematológicos , Testes de Coagulação Sanguínea , alfa 1-Antiquimotripsina , Produtos de Degradação da Fibrina e do Fibrinogênio , Testes de Função Hepática , Índice de Gravidade de Doença , Seguimentos , Hepatite C , Hepacivirus
5.
Journal of the Egyptian Society of Parasitology. 2004; 34 (1): 459-78
em Inglês | IMEMR | ID: emr-66740

RESUMO

This study included 109 patients with detectable hepatitis C virus [HCV] by real time PCR. The patients were classified into three different pathological stages and grades according to the new concept of histopathological staging and grading. The different clinical, biochemical, virological and ultrasonographic parameters were assessed and analyzed and the variables that showed a significant association with the histopathological staging and grading were included in the multivariate logistic regression analysis. The regression model revealed that platelet count, matrix metalloproteinase-9 [MMP-9], portal vein diameter, splenic longitudinal axis, alanine transaminase, aspartate transaminase and viral load added a significance to the model in a decreasing order of significance. From these findings, a new score ranged from 0-9 was generated. The score model was applied to the patients to assess its validity, where it proved to be accurate in discriminating patients with mild inflammation and fibrosis [sensitivity 81.8%, specificity 80.5% and accuracy 80.7%] and more accurate in detecting patients with cirrhosis [specificity 96.6%, sensitivity 80% and accuracy 93.6%], but less accurate in detecting patients with moderate to severe fibrosis [specificity 66.7%, sensitivity 68.7% and accuracy 67.9%]. Also, the results revealed that co-infection with schistosomiasis, old age >/45 years and positive history of blood transfusion as a source of infection were significantly associated with severe hepatic pathology


Assuntos
Humanos , Masculino , Feminino , Cirrose Hepática , Biomarcadores , Contagem de Plaquetas , Metaloproteinase 9 da Matriz , Veia Porta , Testes de Função Hepática , Hepatite C/patologia
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