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1.
Aliment Pharmacol Ther ; 23(8): 1161-70, 2006 Apr 15.
Artigo em Inglês | MEDLINE | ID: mdl-16611277

RESUMO

AIMS: To assess how much patients with hepatitis C virus infection know about their condition and what impact it has on their lifestyle. MATERIALS AND METHODS: A multiple-choice questionnaire was administered anonymously to 364 hepatitis C virus-infected subjects just before their first specialist visit. RESULTS: Even before hepatitis C virus infection was diagnosed, 257 subjects (70.6%) already knew something about this infection. Overall, 36% of patients had changed the way they behaved within the family, 25.5% had changed their sexual habits, 46.9% had changed their diet, and 69% reported having stopped or limited their alcohol intake after being told they were hepatitis C virus positive. Hepatitis C virus infection had a negative impact on the psychological status in 44.2% of patients. This effect was significantly greater among women and was independent of either the duration of their infection or any counselling received from the general practitioner. The need for specific treatment was reported by 59.8%. A demand for more detailed information about hepatitis C virus was expressed by 89.9% of patients. CONCLUSIONS: Hepatitis C virus changes all aspects of lifestyle and psychological status. The patients' strong demand for more information suggests that counselling and educational programmes must be an integral part of the activities of both the general practitioner and the specialist.


Assuntos
Compreensão , Hepatite C/psicologia , Estilo de Vida , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Consumo de Bebidas Alcoólicas , Distribuição de Qui-Quadrado , Estudos de Coortes , Dieta , Feminino , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Masculino , Pessoa de Meia-Idade , Educação de Pacientes como Assunto , Assunção de Riscos , Comportamento Sexual , Inquéritos e Questionários
2.
HIV Med ; 6(1): 27-32, 2005 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-15670249

RESUMO

OBJECTIVES: The aims of this study were to evaluate the prevalence and impact of Chlamydia pneumoniae infection in HIV-positive patients and to establish the relationship between C. pneumoniae infection and lipid profile. METHODS: Detection of C. pneumoniae was by polymerase chain reaction (PCR) on Peripheral Blood Mononuclear Cells (PBMCs) collected from 97 HIV-positive patients. Samples were collected after overnight fast in EDTA-treated tubes. On the same day, patients were also tested for routine chemistry, HIV viral load, CD3, CD8 and CD4 cell counts and lipid profile [cholesterol, high-density lipoproteins (HDLs), low-density lipoproteins (LDLs) and triglycerides]. RESULTS: The overall prevalence of C. pneumoniae was 39%. The prevalence of C. pneumoniae was inversely related to the CD4 lymphocyte count (P=0.03). In the naive group, C. pneumoniae-positive patients had both significantly higher HIV load (71 021+/-15 327 vs. 14 753+/-14 924 HIV-1 RNA copies/mL; P=0.03) and lower CD4 cell count (348.0+/-165.4 vs. 541.7+/-294.8; P=0.04) than C. pneumoniae-negative patients. Moreover, treatment-naive patients with C. pneumoniae infection had significantly higher mean levels of cholesterol (185.3+/-56.2 vs. 124.8+/-45.9 mg/dL; P=0.01), triglycerides (117.2+/-74.7 vs. 68+/-27.6 mg/dL; P=0.04) and LDL (122.4+/-60.1 vs. 55.6+/-58 mg/dL; P=0.05) than C. pneumoniae-negative patients. CONCLUSIONS: These data indicate that, in HIV-positive subjects, C. pneumoniae infection is relatively frequent and is associated with both low CD4 cell count and high HIV load. Furthermore, C. pneumoniae appears to be associated with hyperlipidaemia and might therefore represent a further risk factor for cardiovascolar disease in HIV-positive patients.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/epidemiologia , Infecções por Chlamydia/epidemiologia , Infecções Oportunistas Relacionadas com a AIDS/complicações , Infecções Oportunistas Relacionadas com a AIDS/imunologia , Adulto , Terapia Antirretroviral de Alta Atividade , Contagem de Linfócito CD4 , Infecções por Chlamydia/complicações , Infecções por Chlamydia/imunologia , Feminino , Humanos , Hiperlipidemias/microbiologia , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase/métodos , Prevalência , Fatores de Risco , Carga Viral
3.
Infez Med ; 13(4): 235-40, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16388279

RESUMO

All cases of human leptospirosis observed at the S. Bortolo Hospital, Vicenza, Italy, in the period from September 1990 to December 2003 were retrospectively reviewed. The aim of the study was to define the epidemiological, clinical, diagnostic, and therapeutic aspects of this infection and to compare these with an earlier local study (1979-1990) in order to assess if any changes have occurred over time. The screening test was made using macroscopic agglutination and the diagnosis was definitively confirmed using the microscopic agglutination test (MAT). The etiological serotype was identified in 13 patients (68%) and Leptospira poi was the most frequent serovar. Hepatic and renal involvements were present in a high percentage of patients (71% and 74%, respectively), cardiac involvement in 39%, and hypertriglyceridemia and hepatic steatosis were observed in 68% and 43% of cases, respectively. One patient died because of acute renal and respiratory failure. Intravenous penicillin was the treatment of choice. A consistent reduction in the prevalence was observed during the time period of this study (n = 38) compared with the previous period (n = 86); males were more affected than females in both time periods. In industrialized countries the prevalence of leptospirosis is decreasing; nevertheless, this infection is no longer limited to specific occupational groups and remains a potential fatal disease that should be included in the differential diagnosis of all the patients with unexplained fever.


Assuntos
Leptospirose/epidemiologia , Adulto , Idoso , Animais , Diagnóstico Diferencial , Feminino , Humanos , Itália/epidemiologia , Leptospira/imunologia , Leptospirose/diagnóstico , Leptospirose/tratamento farmacológico , Leptospirose/imunologia , Masculino , Pessoa de Meia-Idade , Penicilinas/uso terapêutico , Prevalência , Estudos Retrospectivos
4.
J Viral Hepat ; 11(6): 543-51, 2004 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-15500555

RESUMO

Retreatment of chronic hepatitis C patients nonresponders to interferon (IFN) alone with the standard dose of IFN [3 million units (MU) thrice weekly (TIW)] plus ribavirin for 24 weeks has yielded low sustained virological response (SVR), averaging 8%. The aim of the present, open-labelled, randomized study was to evaluate the efficacy of IFN induction therapy followed by prolonged high dose of IFN plus ribavirin in nonresponders. One hundred and fifty-one patients were randomized to receive 5 MU daily of IFN alfa-2b (group 1, n = 73) or 5 MU TIW of IFN alfa 2b (group 2, n = 78) for 4 weeks followed by IFN (5 MU TIW) plus ribavirin (1000/1200 mg/daily) for 48 weeks in both groups. In an intention-to-treat analysis, the sustained virological response (SVR) at 24-week follow-up was 33 and 23% for group 1 and 2, respectively (P = 0.17). The overall SVR was 52 and 18% in patients with genotype 2/3 and 1/4, respectively. Among genotype 1/4 patients the SVR was 29 and 11% for age younger or older than 40 years. Compared with genotype 2/3 patients, the risk (95% confidence interval) of nonresponse to retreatment was 3.0-fold (1.17-8.0) in younger genotype 1/4 patients and 8.4-fold (3.0-23.29) in older genotype 1/4 patients. In conclusion these results suggest that retreatment with a reinforced regimen should be focused in nonresponder genotype 2/3 patients and younger genotype 1/4 patients, who are most likely to benefit. Induction therapy does not improve SVR.


Assuntos
Antivirais/administração & dosagem , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/administração & dosagem , Ribavirina/administração & dosagem , Adulto , Idoso , Antivirais/uso terapêutico , Quimioterapia Combinada , Feminino , Hepacivirus/classificação , Hepacivirus/efeitos dos fármacos , Hepacivirus/genética , Hepatite C Crônica/virologia , Humanos , Interferon alfa-2 , Interferon-alfa/uso terapêutico , Masculino , Pessoa de Meia-Idade , RNA Viral/sangue , Proteínas Recombinantes , Ribavirina/uso terapêutico , Fatores de Tempo , Falha de Tratamento , Resultado do Tratamento
5.
Curr Pharm Des ; 10(17): 2111-22, 2004.
Artigo em Inglês | MEDLINE | ID: mdl-15279550

RESUMO

The introduction of highly active anti-retroviral therapy (HAART) for Human Immunodeficiency Virus (HIV) infection has significantly improved the life expectancy of HIV positive patients. Hepatitis C virus (HCV) co-infection is common in HIV infected patients and is now a significant cause of morbidity and mortality. Optimal management and treatment of HCV in HIV infected patients is therefore essential. Interferon-alpha (IFN-alpha) and ribavirin is the mainstay of treatment for HCV infection in HIV infected people. The sustained virological response rate (SVR) with combination therapy is lower than that commonly observed in HCV mono-infected patients. This is, at least in part, due to the very high treatment drop out rates. Ribavirin in combination with HAART is associated with particular side effects such as mitochondrial toxicity. Therefore, vigilant monitoring of patients during therapy, in specialist centers is essential. Pegylated interferon (PEG-IFN) plus ribavirin is particularly promising as it is easier to administer and will probably become the treatment of choice for co-infected patients. A SVR is associated with genotype 2 and 3, in addition to a high CD4+ cell count and a low HCV load prior to therapy. The progression of HCV related liver disease in HIV positive patients is faster than in subjects with HCV infection alone. As a result, there is an increasing incidence of cirrhosis and end-stage liver disease in co-infected patients. Liver transplantation is being evaluated in many centers. To date the experiences are very limited but encouraging in term of survival rate.


Assuntos
Antivirais/uso terapêutico , Infecções por HIV/tratamento farmacológico , Hepatite C Crônica/tratamento farmacológico , Terapia Antirretroviral de Alta Atividade , Antivirais/administração & dosagem , Antivirais/efeitos adversos , Ensaios Clínicos como Assunto , Esquema de Medicação , Quimioterapia Combinada , Infecções por HIV/complicações , Hepatite C Crônica/complicações , Humanos , Interferon-alfa/administração & dosagem , Interferon-alfa/efeitos adversos , Interferon-alfa/uso terapêutico , Ribavirina/administração & dosagem , Ribavirina/efeitos adversos , Ribavirina/uso terapêutico
6.
Aliment Pharmacol Ther ; 18(6): 549-58, 2003 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-12969081

RESUMO

Type 1 diabetes mellitus is the result of an autoimmune process characterized by pancreatic beta cell destruction. It has been reported that chronic hepatitis C infection is associated with type 2 diabetes mellitus, but not with type 1. Although the prevalence of markers of pancreatic autoimmunity in hepatitis C virus-positive patients is not significantly different to that reported in the general population, it increases during alpha-interferon therapy from 3 to 7%, probably due to the immunostimulatory effects of this cytokine. To date, 31 case reports of type 1 diabetes mellitus related to interferon treatment have been published. Type 1 diabetes mellitus occurs more frequently in patients treated for chronic hepatitis C than for other conditions and is irreversible in most cases. In 50% of these patients, markers of pancreatic autoimmunity predated treatment, the majority of cases having a genetic predisposition. Thus, in predisposed individuals, alpha-interferon can either induce or accelerate a diabetogenic process already underway. We suggest that islet cell autoantibodies and glutamic acid decarboxylase autoantibodies should be investigated before and during interferon treatment in order to identify subjects at high risk of developing type 1 diabetes mellitus.


Assuntos
Antivirais/efeitos adversos , Diabetes Mellitus Tipo 1/induzido quimicamente , Interferons/efeitos adversos , Antivirais/imunologia , Autoanticorpos/imunologia , Diabetes Mellitus Tipo 1/imunologia , Glutamato Descarboxilase/imunologia , Hepatite C Crônica , Humanos , Interferons/imunologia , Ilhotas Pancreáticas/imunologia
7.
J Viral Hepat ; 10(2): 111-7, 2003 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-12614467

RESUMO

summary. Retreatment of relapser patients with chronic hepatitis C with the standard dose of interferon (IFN) of 3 million units (MU) thrice weekly (tiw) plus ribavirin for 24 weeks achieves a sustained response in 30 and 73% of patients with genotype 1 and 2 or 3, respectively. The aim of this study was to evaluate the efficacy and safety of IFN alpha-2b induction therapy, followed by prolonged treatment with a high dose of IFN alpha-2b plus ribavirin in relapser patients. A total of 119 patients were randomized to receive IFN alpha-2b 5 MU daily (Group A: 59 patients) or IFN alpha-2b 5 MU tiw (Group B: 60 patients) for 4 weeks followed by IFN (5 MU tiw) and ribavirin (1000-1200 mg/day) for 48 weeks in both groups. The primary end point was hepatitis C virus (HCV)-RNA clearance at week 24 after the end of treatment. A sustained virological response (SVR) was achieved in 68 and 60% of Group A and B patients, respectively (P = 0.37). Logistic regression analysis identified genotype 2 or 3 as the only independent factor associated with response, whereas induction regimen and baseline viraemia levels did not affect the response. The overall SVR was 53 and 72% in patients with genotype 1 or 4 and 2 or 3, respectively. In conclusion, induction IFN therapy does not enhance the SVR to a 48-week combination therapy. Our study suggests that relapsed patients with genotype 1 or 4 may achieve significant response rates of approximately 50%, if retreated with 5 MU tiw IFN plus ribavirin for 48 weeks.


Assuntos
Antivirais/administração & dosagem , Hepacivirus/crescimento & desenvolvimento , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/administração & dosagem , Ribavirina/administração & dosagem , Adulto , Quimioterapia Combinada , Feminino , Hepacivirus/genética , Hepatite C Crônica/virologia , Humanos , Interferon alfa-2 , Modelos Logísticos , Masculino , RNA Viral/sangue , RNA Viral/genética , Proteínas Recombinantes , Recidiva , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Resultado do Tratamento
8.
J Chemother ; 14(2): 166-74, 2002 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-12017372

RESUMO

According to economic principles an inappropriate prescription is the choice of an antimicrobial with higher/equivalent cost and lower effectiveness (or higher cost and equivalent/lower efficacy) than an alternative (in this case, the former is specified as a "dominated" drug). To identify cost-effective antibiotics we applied the principles of incremental cost-effectiveness analysis (ICEA) to microbiological data of San Bortolo Hospital. Its 27 wards were grouped in 9 functional areas. The resistance patterns of 8 urinary pathogens in the 1997 microbiology data base were assessed. The measure of antibiotic effectiveness was expressed as the percentage of isolates susceptible to each antibiotic tested. The difference in cost (i.e. the incremental change) between each antibiotic and the next more expensive alternative was calculated, and compared with the incremental change in effectiveness. Calculations were made for each pathogen. The antibiotics remaining after exclusion of all "dominated" antibiotics were pooled on a list defined as "Specific Area Formulary". The implications of the use of economic principles within a general antimicrobial policy are discussed.


Assuntos
Antibacterianos/economia , Infecções Urinárias/economia , Antibacterianos/uso terapêutico , Química Farmacêutica , Análise Custo-Benefício , Custos de Medicamentos , Escherichia coli/efeitos dos fármacos , Humanos , Resultado do Tratamento , Infecções Urinárias/tratamento farmacológico
9.
Aliment Pharmacol Ther ; 16(4): 807-11, 2002 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-11929400

RESUMO

BACKGROUND: The relationship between serum parameters of gastric function and Helicobacter pylori infection in human immunodeficiency virus (HIV)-positive patients is almost unknown. AIMS: To investigate in HIV-infected patients: (i) the relationship between serum gastrin and serum pepsinogens over the progressive phases of HIV-related disease; (ii) the impact of H. pylori infection on gastrin and pepsinogen serum levels and its relation to antral histology; (iii) the prevalence of parietal cell autoantibodies. METHODS: Fifty-nine HIV-positive patients were studied by upper endoscopy plus gastric antral biopsy. Serum samples were tested for gastrin, pepsinogen A, pepsinogen C and parietal cell autoantibodies. RESULTS: In patients without overt acquired immunodeficiency syndrome (AIDS), or with a CD4+ count of > 100 x 10(6) cells/L, mean serum levels of gastrin and pepsinogen C were higher than in subjects with AIDS or with a CD4+ count of < 100 x 10(6) cells/L (P < 0.01). Only one patient was found to be positive for parietal cell autoantibodies. H. pylori infection was associated with increased values of gastrin and pepsinogen C only in HIV-positive patients without AIDS or with a CD4+ count of > 100 x 10(6) cells/L. Atrophy was more frequent in patients with overt AIDS than in those without overt AIDS (57% vs. 33%, P=N.S.), and/or in patients with a CD4+ count of < 100 x 10(6) cells/L than in those with a CD4+ count of > 100 x 10(6) cells/L (62% vs. 26%, P < 0.05). CONCLUSIONS: HIV-positive patients without overt AIDS have increased serum levels of gastrin and pepsinogen C compared with HIV-positive patients with overt AIDS.


Assuntos
Infecções Oportunistas Relacionadas com a AIDS/sangue , Síndrome da Imunodeficiência Adquirida/sangue , Gastrinas/sangue , Infecções por Helicobacter/sangue , Helicobacter pylori , Pepsinogênio C/sangue , Infecções Oportunistas Relacionadas com a AIDS/complicações , Infecções Oportunistas Relacionadas com a AIDS/imunologia , Síndrome da Imunodeficiência Adquirida/complicações , Síndrome da Imunodeficiência Adquirida/imunologia , Adulto , Autoanticorpos/análise , Contagem de Linfócito CD4 , Feminino , Gastrite/sangue , Gastrite/etiologia , Gastrite/imunologia , Infecções por Helicobacter/complicações , Infecções por Helicobacter/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Células Parietais Gástricas/imunologia
10.
J Chemother ; 14(1): 71-5, 2002 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-11892903

RESUMO

Treatment of osteomyelitis requires prolonged hospital stay, lengthy antibiotic therapy and adequate surgical debridement. Outpatient parenteral antibiotic therapy (OPAT) is a new approach to reduce patient discomfort and hospital costs. Teicoplanin, a glycopeptide antibiotic with a long half-life (72 hours), is one of the most useful drugs for OPAT. We performed a pilot study to assess the safety and efficacy of three-times weekly teicoplanin in the treatment of methicillin-resistant (MR) acute staphylococcal osteomyelitis. Ten patients with acute post-traumatic osteomyelitis were enrolled. Pathogens were MR Staphylococcus aureus (5 patients) and MR coagulase-negative staphylococci (5 patients). After a loading dose of 400 mg b.i.d. for 3 days, patients were treated with an intravenous dose of 1000 mg on Mondays and Wednesdays and with a 1200 mg dose on Fridays. Teicoplanin trough levels were maintained within a 10 to 20 mg/L range. If hardware removal had been possible at enrollment, treatment was carried out for at least 4 weeks. If, on the contrary, hardware removal had not been possible, teicoplanin was administered as suppressive therapy until hardware removal. Treatment was successfully performed in 9 out of 10 patients, whereas in one patient only improvement was achieved. Side effects were not recorded. Three times weekly teicoplanin seems to be a valuable option in the treatment of acute MR staphylococcal osteomyelitis. Further studies are warranted in order to better define the role of this new administration schedule in this field.


Assuntos
Antibacterianos/administração & dosagem , Resistência a Meticilina , Osteomielite/tratamento farmacológico , Infecções Estafilocócicas/tratamento farmacológico , Teicoplanina/administração & dosagem , Doença Aguda , Adulto , Idoso , Redução de Custos , Esquema de Medicação , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Pacientes Ambulatoriais , Projetos Piloto
11.
BMC Infect Dis ; 1: 18, 2001.
Artigo em Inglês | MEDLINE | ID: mdl-11667952

RESUMO

BACKGROUND: Many case reports of acute pancreatitis have been reported but, up to now, pancreatic abnormalities during acute gastroenteritis have not been studied prospectively. OBJECTIVES: To evaluate the incidence and the clinical significance of hyperamylasemia in 507 consecutive adult patients with acute gastroenteritis. METHODS: The clinical significance of hyperamylasemia, related predisposing factors and severity of gastroenteritis were assessed. RESULTS: Hyperamylasemia was detected in 10.2 % of patients studied. Although amylasemia was found over four times the normal values in three cases, the clinical features of acute pancreatitis were recorded in only one case (0.1%). Hyperamylasemia was more likely (17%) where a microorganism could be identified in the stools (p < 0.01). Among patients with positive stool samples, Salmonella spp. and in particular S. enteritidis, was the microorganism most frequently associated with hyperamylasemia [17/84 (20.2 %) and 10/45 (22.2%), respectively], followed by Rotavirus, Clostridium difficile and Campylobacter spp. Patients with hyperamylasemia had more severe gastroenteritis with an increased incidence of fever (80 % vs 50.6 %, O.R. 3.0; P < 0.01), dehydration (18% vs 8.5%; O.R. 2.5; P < 0.05), and a higher mean number of evacuations per day (9.2 vs 7.5; P < 0.05) than those with amylasemia in the normal range. Hyperamylasemia was significantly associated with cholelithiasis, (30.0 % vs 10.7%, O.R. 3.5; P < 0.01) and chronic gastritis or duodenal ulceration (22.0 % vs 10.2%, O.R. 2.4, P < 0.05). CONCLUSIONS: Hyperamylasemia is relatively frequent, and is associated with severe gastroenteritis. However, acute pancreatitis in the setting of acute gastroenteritis, is a rare event.


Assuntos
Amilases/metabolismo , Gastroenterite/complicações , Pancreatopatias/etiologia , Doença Aguda , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Pancreatopatias/enzimologia , Pancreatopatias/epidemiologia
12.
J Infect Dis ; 184(8): 983-91, 2001 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-11574912

RESUMO

The role of mutations in protease (PR) and reverse-transcriptase (RT) of human immunodeficiency virus (HIV) in predicting virologic failure was assessed in 248 antiretroviral-naive HIV-positive patients who began a PR inhibitor-containing antiretroviral regimen. Genotypic testing was performed on plasma samples stored before the start of therapy. Twenty-seven patients (10.9%) had mutations in the RT, 5 (2%) carried primary mutations in the PR, and 131 (52.8%) showed only secondary PR mutations. Virologic failure at week 24 occurred in 62 (25.0%) of 248 patients. There was a statistically significant correlation between virologic failure and the number of PR mutations (P= .04, chi(2) test). Mutations at codons 10 and 36 of PR (present in 39.3% and 40.0% of patients in whom treatment failed, respectively) were identified by stepwise logistic regression as the strongest predictors of virologic failure (odds ratio, 2.20; 95% confidence interval, 1.30-3.75; P= .004). If confirmed in independent studies, this result may justify the increased use of HIV genotyping in drug-naive patients requiring antiretroviral therapy.


Assuntos
Infecções por HIV/tratamento farmacológico , Protease de HIV/genética , Mutação , Doença Aguda , Terapia Antirretroviral de Alta Atividade , Antivirais/uso terapêutico , Doença Crônica , Estudos de Coortes , Bases de Dados como Assunto , Genótipo , Infecções por HIV/transmissão , Humanos , Razão de Chances , Falha de Tratamento
14.
Eur J Obstet Gynecol Reprod Biol ; 93(1): 71-5, 2000 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11000508

RESUMO

OBJECTIVE: To assess the usefulness of human papilloma virus (HPV) typing for predicting pre-malignant and malignant cervical lesions. STUDY DESIGN: 314 women, who underwent colposcopy, biopsies and high and low-risk HPV typing after a confirmed abnormal routine Pap test were studied. HPV-DNAs were typed by using PCR technique. RESULTS: We found a significant increasing rate of high-risk-HPV by the increasing severity of histology, ranging from 40% in negative cases to 86.9% in those with CIN3 lesions. The positive predictive value of high-risk-HPV ranged from 13.3% in patients with atypical squamous cells of undetermined significance (ASCUS) to 29.4% in those with HSIL. By contrast, negative predictive value was 96% in patients with ASCUS, 97.2% in low-grade squamous intraepithelial lesions (LSIL), and 71.4% in high-grade squamous intraepithelial lesions (HSIL). Sensitivity and specificity for detecting CIN2 or CIN3 was 86.0% and 41.3%, respectively. CONCLUSIONS: The high negative predictive value of high-risk HPV testing suggests that HPV negativity could be used for predicting the absence of important cervical lesions, and therefore avoiding unnecessary colposcopy in ASCUS and LSIL cases.


Assuntos
Papillomaviridae/isolamento & purificação , Lesões Pré-Cancerosas/virologia , Neoplasias do Colo do Útero/virologia , Adulto , Biópsia , Colposcopia , DNA Viral/análise , Feminino , Genótipo , Humanos , Programas de Rastreamento , Papillomaviridae/classificação , Papillomaviridae/genética , Reação em Cadeia da Polimerase , Lesões Pré-Cancerosas/diagnóstico , Lesões Pré-Cancerosas/patologia , Estudos Retrospectivos , Fatores de Risco , Neoplasias do Colo do Útero/diagnóstico , Neoplasias do Colo do Útero/patologia , Esfregaço Vaginal , Displasia do Colo do Útero/diagnóstico , Displasia do Colo do Útero/patologia , Displasia do Colo do Útero/virologia
15.
Diabetes Care ; 23(8): 1177-81, 2000 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10937518

RESUMO

OBJECTIVE: The aim of the study was to investigate the prevalence of clinical and latent autoimmune diseases in Italian patients with hepatitis C virus (HCV) chronic infection before and after treatment with interferon-alpha (IFN-alpha). RESEARCH DESIGN AND METHODS: The evidence of clinical autoimmune disease and the presence of autoantibodies were assessed in 70 patients with HCV chronic infection. Autoantibodies to islet cell (ICA), glucagon-producing cells (GCA), parietal cell (PCA), adrenal cortex (ACA), adrenal medulla (AdMA), nuclei (ANA), liver-kidney microsomal (LKM-Ab), mitochondrial, and smooth muscle (SMA) were tested using the classic indirect immunofluorescence technique. Autoantibodies to GAD (GADAb), second islet cell autoantigen (IA2-Ab), and insulin (IAA) were tested by radioimmunoassay and thyroid microsomal autoantibodies (TMHA) and thyroglobulin autoantibodies (TGHA) were assessed by hemoagglutination test. RESULTS: None of the 70 patients studied showed evidence of clinical disease before treatment with IFN-alpha. However, 1 (1.4%) patient was positive for ICA, 2 (2.8%) were positive for GCA, 2 (2.8%) for GADAb, 5 (7.1%) for PCA, 2 (2.8%) for ANA, 3 (3.7%) for SMA, 4 (5.7%) for TMHA, and 2 (2.8%) for TGHA. These frequencies were not significantly different when compared with healthy control subjects. There were 29 (41%) patients who were positive for IAA at low titers compared with 2% of the control subjects (significantly different P < 0.0001). ICA titers of one patient positive for ICA/GADAb increased during the IFN-alpha therapy, and the patient developed type 1 diabetes 5 months after the beginning of treatment. IAA levels did not change during the course of treatment, and none of the IAA+ patients developed diabetes. Thyroid autoantibody titers increased in 3 of the 4 initially positive patients, with 1 patient becoming positive and 2 thyroid antibody-positive patients developing overt hypothyroidism during IFN-alpha treatment. PCA titers increased in 1 of 5 positive patients. Antibodies to other autoantigens did not change during the course of treatment. CONCLUSIONS: We have not found an increased frequency of clinical or latent autoimmune diseases in patients with chronic HCV infection. However, this study suggests that screening patients for autoantibodies (in particular, thyroid and pancreas) before and during IFN-alpha therapy may be useful in assessing the risk of patients developing autoimmune disease.


Assuntos
Antivirais/uso terapêutico , Autoanticorpos/sangue , Hepatite C Crônica/tratamento farmacológico , Hepatite C Crônica/imunologia , Interferon-alfa/uso terapêutico , Ilhotas Pancreáticas/imunologia , Glândulas Suprarrenais/imunologia , Adulto , Idoso , Anticorpos Antinucleares/sangue , Feminino , Técnica Indireta de Fluorescência para Anticorpo , Glutamato Descarboxilase/imunologia , Hepatite C Crônica/sangue , Humanos , Anticorpos Anti-Insulina/sangue , Itália , Rim/imunologia , Fígado/imunologia , Masculino , Pessoa de Meia-Idade
16.
J Hepatol ; 32(4): 661-5, 2000 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10782916

RESUMO

BACKGROUND/AIMS: Recently, the presence of a novel nonenveloped single-stranded DNA virus (TTV) has been associated with either acute or chronic hepatitis of unknown aetiology, suggesting a possible aetiological role. The aim of this study was to evaluate the prevalence, the significance and the clinical impact of TTV infection in patients with acute viral hepatitis of defined aetiology and in patients with non-A-E acute hepatitis. METHODS: TTV-DNA was tested by hemi-nested PCR in serum samples collected from 121 patients during and after acute hepatitis (103 with acute viral hepatitis of defined aetiology and 18 with acute non-A-E hepatitis) and in 30 healthy controls. RESULTS: Overall, the rate of TTV infection was 12.6% (13/103) in patients with acute hepatitis of defined aetiology, 16.6% (3/18) in patients with non-A-E acute hepatitis and 6.6% (2/30) in the healthy control group, (p=n.s). TTV-DNA was detected in the following proportions: hepatitis B, 13.2% (7/53); hepatitis C, 16.6% (4/24); hepatitis A, 4.7% (1/21); hepatitis E 20% (1/5). Moreover, acute hepatitis with and without TTV infection/coinfection were comparable in terms of both liver biochemistry and chronicity rate. The results of TTV re-testing after serial dilutions of six TTV-DNA positive serum samples during and after the peak of liver transaminases failed to demonstrate a correlation between liver damage and viral titre. CONCLUSIONS: The prevalence of TTV infection appeared to be comparable in patients with non-A-E hepatitis, in acute hepatitis of defined aetiology and in the control group. Hence, an aetiological role of TTV for acute hepatitis of unknown aetiology seems questionable. Moreover, TTV infection does not modify the natural history of acute hepatitis of defined aetiology.


Assuntos
Vírus de DNA/isolamento & purificação , Hepatite Viral Humana/virologia , Viroses/virologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
17.
J Med Virol ; 61(1): 59-64, 2000 May.
Artigo em Inglês | MEDLINE | ID: mdl-10745233

RESUMO

The role of GBV-C/HGV in the aetiology of acute non A-E hepatitis and its impact on the course of acute hepatitis of defined aetiology were investigated by detecting viral RNA by RT-PCR and antibody to the E2 protein of GB virus C (anti-E2) by EIA. Ninety-eight patients with acute nonA-E hepatitis, 35 patients with acute hepatitis A, 63 with acute hepatitis B, 29 with acute hepatitis C and 270 controls were enrolled in this study. The prevalence of GBV-C/HGV RNA was similar among patients with acute nonA-E hepatitis (3.1%), with acute hepatitis A (2.9%), and controls (3.7%), but significantly higher (P < 0.05) among those with hepatitis B or C (19.0% and 48.3%, respectively). Similar figures were obtained considering the total rate of GBV-C/HGV exposure (viral RNA or anti-E2 positivity). The majority (24/30 or 80%) of GBV-C/HGV RNA positive patients reported a parenteral source of exposure whereas the remaining 20% denied having known risk factors. The liver function test values and the rate of chronic hepatitis B and C were similar in patients co-infected and in those not co-infected with GBV-C/HGV. This study excludes a significant role of GBV-C/HGV infection in the aetiology of acute nonA-E hepatitis in Italy. Concomitant GBV-C/HGV and HBV or HCV infection does not worsen the clinical course of illness among patients with acute hepatitis.


Assuntos
Flaviviridae , Hepatite/virologia , Doença Aguda , Adolescente , Adulto , Idoso , Criança , Pré-Escolar , Feminino , Hepacivirus , Hepatite/epidemiologia , Vírus da Hepatite B , Hepatovirus , Humanos , Lactente , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Inquéritos e Questionários
19.
Aliment Pharmacol Ther ; 13(10): 1329-34, 1999 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-10540048

RESUMO

BACKGROUND: Non-steroidal anti-inflammatory drugs may amplify the anti-viral effect of alpha-interferon in vitro but in vivo data are still controversial. AIM: : To test the hypothesis that ketoprofen may increase the rate of response to alpha-interferon of chronic hepatitis C patients. METHODS: Fifty patients with chronic hepatitis C who had never received alpha-interferon were randomly assigned to receive 3-8 MU of alpha2b-interferon, three times weekly for 6 months, alone or in association with ketoprofen at a dose of 200 mg/day five times weekly. The virological response to treatment (undetectable HCV RNA in serum) was evaluated after 3 months and at the end of treatment, and 6 and 12 months after therapy withdrawal. RESULTS: One patient under combination therapy stopped the ketoprofen for persisting epigastric pain. Complete response under treatment was observed in 15 out of 24 (62.5%) patients receiving alpha2b-interferon alone and in 14 out of 26 (53.8%) patients under combination therapy (P=N.S.). One year after the end of treatment, a sustained response was seen in 4 out of 24 (16.2%) patients treated with alpha2b-interferon and in 5 out of 26 (19.2%) patients having received the combination (P=N.S.). CONCLUSION: Administration of ketoprofen does not increase either the primary or the sustained response to alpha2b-interferon therapy of interferon-naive chronic hepatitis C patients.


Assuntos
Anti-Inflamatórios não Esteroides/uso terapêutico , Antivirais/uso terapêutico , Hepatite C Crônica/tratamento farmacológico , Interferon-alfa/uso terapêutico , Cetoprofeno/uso terapêutico , Adulto , Esquema de Medicação , Quimioterapia Combinada , Feminino , Genótipo , Hepacivirus/genética , Humanos , Interferon alfa-2 , Masculino , Pessoa de Meia-Idade , Proteínas Recombinantes
20.
Aliment Pharmacol Ther ; 13(9): 1187-93, 1999 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-10468700

RESUMO

BACKGROUND: Ursodeoxycholic acid (UDCA) is able to improve biochemical markers of cholestasis, with a parallel decrease in transaminases, in various cholestatic liver diseases. AIM: To evaluate the effects of UDCA administration on acute viral hepatitis-related cholestasis and the course of acute viral hepatitis. METHODS: Seventy-nine consecutive patients with acute viral hepatitis (HBV: 43, HCV: 11, HAV: 15, HEV: 3, Non A-E: 7) were randomized to receive either UDCA for 3 weeks or no treatment. Liver biochemistry and serum bile acid determinations were run at weekly intervals. RESULTS: No significant differences were observed in mean percentage decreases in transaminases between treated and untreated patients. By contrast, cholestatic indexes decreased significantly more quickly in patients treated with UDCA than in controls, and this effect was more evident in patients with increasing alanine transaminase levels at admission. After a peak at the end of the first week of therapy, serum levels of conjugated ursodeoxycholic acid (CUDCA) showed a gradual decrease. Conjugated cholic acid (CCA) and chenodeoxycholic acid (CCDCA) showed a progressive decrease with the resolution of viral hepatitis, but no influence of UDCA administration was observed. CONCLUSIONS: Our study demonstrates that UDCA significantly improves cholestatic indices in patients with acute viral hepatitis, but this effect does not seem to affect the course of the illness.


Assuntos
Colagogos e Coleréticos/uso terapêutico , Colestase/tratamento farmacológico , Hepatite Viral Humana/tratamento farmacológico , Ácido Ursodesoxicólico/uso terapêutico , Doença Aguda , Adolescente , Adulto , Idoso , Ácido Quenodesoxicólico/sangue , Colagogos e Coleréticos/sangue , Colagogos e Coleréticos/farmacologia , Colestase/etiologia , Ácido Cólico/sangue , Ensaio de Imunoadsorção Enzimática , Feminino , Seguimentos , Anticorpos Anti-Hepatite/sangue , Vírus de Hepatite/genética , Vírus de Hepatite/imunologia , Hepatite Viral Humana/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , RNA Viral/sangue , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Resultado do Tratamento , Ácido Ursodesoxicólico/sangue , Ácido Ursodesoxicólico/farmacologia
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