ABSTRACT
ABSTRACT This review aims to caution ophthalmologists about the ocular consequences leading to the diagnosis of hepatitis C virus infection. In addition, in this context, the effects of old and new drugs are discussed in the ophthalmological setting. The importance of early diagnosis and the curative treatment of the disease has been reported in the national and international literature, demonstrating that its progression has important implications for daily clinical and surgical ophthalmological practice. Despite the scarcity of studies on new direct-acting antiviral drugs, fewer side effects of these drugs have been shown when compared with conventional interferon treatment with or without ribavirin. The ophthalmologist's risk of becoming infected, as demonstrated by the presence of the virus in ocular structures, and the possibility of contamination, is also discussed.
RESUMO Esta revisão objetiva alertar os oftalmologistas sobre as consequências oculares que levam ao diagnóstico da infecção pelo vírus da Hepatite C. Além disso, neste contexto, os efeitos de drogas antigas e novas são discutidos no cenário oftalmológico. A importância do diagnóstico precoce e do tratamento curativo da doença tem sido relatada na literatura nacional e internacional, demonstrando que sua progressão tem implicações importantes para a prática oftalmológica diária. Apesar da escassez de estudos sobre novos medicamentos antivirais de ação direta, foram demonstrados menos efeitos colaterais desses medicamentos quando comparados ao tratamento convencional com interferon, com ou sem ribavirina associado ou não à rivabirina. O risco do oftalmologista de se infectar, como demonstrado pela presença do vírus nas estruturas oculares, e a possibilidade de contaminação, também é discutido.
Subject(s)
Humans , Eye Infections, Viral/virology , Hepatitis C/complications , Antiviral Agents/therapeutic use , Ribavirin/therapeutic use , Eye Infections, Viral/pathology , Risk Factors , Interferons/therapeutic use , Hepatitis C/pathology , Hepatitis C/drug therapyABSTRACT
This review aims to caution ophthalmologists about the ocular consequences leading to the diagnosis of hepatitis C virus infection. In addition, in this context, the effects of old and new drugs are discussed in the ophthalmological setting. The importance of early diagnosis and the curative treatment of the disease has been reported in the national and international literature, demonstrating that its progression has important implications for daily clinical and surgical ophthalmological practice. Despite the scarcity of studies on new direct-acting antiviral drugs, fewer side effects of these drugs have been shown when compared with conventional interferon treatment with or without ribavirin. The ophthalmologist's risk of becoming infected, as demonstrated by the presence of the virus in ocular structures, and the possibility of contamination, is also discussed.
Subject(s)
Eye Infections, Viral/virology , Hepatitis C/complications , Antiviral Agents/therapeutic use , Eye Infections, Viral/pathology , Hepatitis C/drug therapy , Hepatitis C/pathology , Humans , Interferons/therapeutic use , Ribavirin/therapeutic use , Risk FactorsABSTRACT
Hepatitis Delta virus (HDV) is not well known, even though HDV and Hepatitis B virus (HBV) co-infection leads to severe forms of acute and chronic liver diseases. HDV is endemic in the Western Amazon region. Recently, the HDV genotype 8 was found in chronic patients followed at the center for liver studies in the Northeast Brazil, Maranhão. Previous studies suggested that this genotype was introduced in Maranhão during the slave trade. The presence of HDV in that study, which was done outside the Amazon region, led us to investigate whether the virus is found infecting individuals in other regions of Maranhão as well. Thus, we screened ninety-two HBsAg positive individuals from five Municipalities of Maranhão for anti-HD antibody and eight were found positive (8.7%). These eight positive individuals were submitted to polymerase chain reaction (PCR) to investigate active HDV infection. Half of them were positive for a fragment sequence of the delta antigen; their sequence samples were submitted to genotype characterization by phylogenetic analysis. All sequences clustered in a unique branch of the tree separated from the other branch described in Africa. Our study confirmed the presence of HDV-8 in Maranhão. These infected individuals had no evidence of contact with African people. Furthermore, we found individuals infected with HDV-8 in two more different municipalities. More studies like ours are urgent because the co-infection HBV/HDV is more difficult to treat. Identification of the endemic regions and implementation of healthy policies for preventing this infection are urgent in this region.
Subject(s)
Endemic Diseases , Enslaved Persons , Hepatitis D, Chronic/epidemiology , Hepatitis D, Chronic/virology , Hepatitis Delta Virus/classification , Hepatitis delta Antigens/genetics , Adult , Africa/epidemiology , Antibodies, Viral/blood , Brazil/epidemiology , Coinfection/virology , Enslaved Persons/history , Female , Genotype , Hepatitis B virus/genetics , Hepatitis B, Chronic/epidemiology , Hepatitis B, Chronic/virology , Hepatitis Delta Virus/genetics , Hepatitis Delta Virus/isolation & purification , Hepatitis delta Antigens/blood , History, 16th Century , Humans , Liver/pathology , Liver/virology , Male , Middle Aged , Phylogeny , Sequence Analysis, DNA , Young AdultABSTRACT
Fundamentos: O menor grau de escolaridade na população parece estar associado com a maior prevalência dos fatoresde risco cardiovascular (FRCV). Contudo, poucos estudos avaliaram esse fato através de análise clínica e laboratorial em centros universitários. Objetivo: Avaliar a prevalência dos FRCV em servidores de universidade pública. Métodos: Estudo transversal, analítico, randomizado, com 319 participantes de uma coorte de servidores universitários. Analisou-se a prevalência dos FRCV através da medição dos níveis glicêmicos e pressóricos, perfil lipídico, índices antropométricos e foram realizadas análises comparativas de subgrupos de diferentes níveis de escolaridade. Realizou-se análise de regressão logística multivariada para avaliar a associação independente entre nível de escolaridade e presença dos FRCV. Resultados: Média de idade 46,0±10,0 anos, 52,5% mulheres, 56,0% com nível superior de escolaridade, 85,6% pertencentes às classes socioeconômicas B e C. Prevalência dos FRCV: diabetes mellitus (DM) 9,4%; hipertensão arterial sistêmica(HAS) 36,7%; dislipidemia 50,5%; tabagismo 21,9%; sobrepeso 59,6%; obesidade 13,2%; sedentarismo 27,9%. O grupo de menor nível de escolaridade se associou de forma independente com maior prevalência de DM e sedentarismo, quando comparado ao grupo dos servidores com nível superior (docentes e não docentes). DM=odds ratio 2,4(IC95% 1,05-5,5) e p=0,036; sedentarismo=odds ratio 2,2 (IC95% 1,3-3,7) e p=0,003. Os subgrupos não apresentaramdiferenças quanto às demais variáveis.
Background: The lower level of education in the population appears to be associated with a higher prevalence of cardiovascular risk factors(CVRF). However, few studies have assessed this fact by means of clinical and laboratory analysis in universities. Objective: To evaluate the prevalence of cardiovascular risk factors in public servants at a public university.Methods: Cross-sectional, analytical and randomized study, with 319 participants of a cohort composed of university public servants.CVRF prevalence was assessed by measuring blood glucose and blood pressure levels, lipid profile and anthropometric indices, and comparative analyses were made of subgroups with different education levels. A multivariate logistic regression analysis was used to assess the independentassociation between education level and presence of CVRF.Results: Mean age 46.0±10.0 years old, 52.5% women, 56.0% with higher education level, 85.6% belonging to B and C socioeconomic classes. Prevalence of CVRF: diabetes mellitus (DM) - 9.4%; systemic hypertension (SH) - 36.7%; dyslipidemia - 50.5%; smoking - 21.9%;overweight - 59.6%; obesity - 13.2%; sedentary lifestyle - 27.9%. The group with the lowest level of education had an independent association,with higher prevalence of DM and sedentary lifestyle, as compared to the group of public servants with higher level of education (teachersand non-teachers). DM=odds ratio 2.4 (95% CI 1.05 to 5.5) and p=0.036; sedentary lifestyle=odds ratio 2.2 (95% CI 1.3 to 3.7) andp=0.003. The subgroups showed no differences regarding the other variables. Conclusion: In this study, individuals with higher levels of education showed lower prevalence of diabetes and sedentary lifestyle.
Subject(s)
Humans , Male , Female , Adult , Cardiovascular Diseases/diagnosis , Cardiovascular Diseases/physiopathology , Educational Status , Prevalence , Risk Factors , Cross-Sectional Studies , Diabetes Mellitus , Hypertension/complications , Hypertension/diagnosis , Multivariate Analysis , Obesity/complications , Obesity/diagnosis , Sedentary Behavior , Socioeconomic Factors , Waist CircumferenceABSTRACT
Fundamentos: Tanto a hipertrofia ventricular esquerda (HVE) como a disfunção endotelial representam importantes fatores de risco cardiovascular. No entanto, a correlação entre HVE e disfunção endotelial tem sido pouco explorada e ainda é motivo de controvérsias. Objetivo: Investigar a correlação entre o índice de massa do ventrículo esquerdo (IMVE) e a dilatação mediada por fluxo de artéria braquial (DMF), adotada como estimativa da função endotelial, em indivíduos hipertensos. Materiais e Métodos: Trata-se de estudo transversal envolvendo 94 hipertensos sem doença cardiovascular manifesta, com média de idade de 56,99 ± 11,89 anos, sendo 68,1% do sexo feminino. Todos os participantes foram submetidos a exame clínico, pesquisa de fatores de risco cardiovascular, dosagens bioquímicas, ecodopplercardiografia para determinação do IMVE e pesquisa da DMF por ultra-sonografia de alta resolução. Utilizouse a regressão linear múltipla para pesquisa da associação entre IMVE e DMF. Resultados: A média do IMVE foi de 104,4 ± 26,2 g/m2 e a da DMF, de 5,2 ± 5,7%. Na análise de regressão linear simples, observou-se uma correlação inversa significativa entre o IMVE e a DMF (ß = -0,389, p = 0,007). Após análise de regressão multivariada, a associação persistiu independentemente da pressão arterial, tanto sistólica quanto diastólica, proteína C reativa ultrassensível (PCR-US) e de outros fatores de risco cardiovascular. Conclusão: Observou-se correlação inversa significativa entre IMVE e DMF em hipertensos sem doença cardiovascular manifesta, independentemente da pressão arterial e do status inflamatório.
Background: Both left ventricular hypertrophy (LVH) and endothelial dysfunction represent important cardiovascular risk factors. However, the correlation between LVH and endothelial dysfunction has been little explored and is still a matter of controversies. Objective: To investigate the correlation between left ventricular mass index (LVMI) and flow-mediated dilation (FMD) of brachial artery , used as an estimative measure of endothelial dysfunction, in hypertensive patients. Materials and Methods: This is a cross-sectional study involving 94 middle-aged (56,99 ± 11,89 years) hypertensive outpatients without overt cardiovascular disease, being 68,1% female. All the participants underwent clinical examination, biochemical analyses, search for cardiovascular risk factors, transthoracic echocardiography for the determination of LVMI and assessment of FMD using a high-resolution Doppler B-mode ultrasound equipment. A multiple linear regression model was used to analyse the association between LVMI and DMF. Results: Mean LVMI was 104,4 ± 26,2 g/m2 and mean DMF, 5,2 ± 5,7%. Using simple linear regression, it was observed a significant inverse correlation between LVMI and FMD (ß = -0,389, p =0,007). This association remained significant even after adjustment for systolic and diastolic blood pressure, high sensitivity C-reactive protein (hs-CRP) and many other cardiovascular risk factors. Conclusions: In these hypertensive patients without overt cardiovascular disease, it was observed a significant inverse correlation between LVMI and FMD, which was independent of blood pressure and inflammatory status.
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Endothelium , Heart Ventricles , Hypertension , Hypertrophy, Left Ventricular , VasodilationABSTRACT
OBJETIVOS: Estimar a prevalência de anticorpos contra o vírus da hepatite A (antiVHA-IgG) em escolares de 7 a 14 anos de escolas públicas e privadas e identificar fatores demográficos, socioeconômicos e sanitários associados à prevalência de antiVHA-IgG. MÉTODOS: Estudo soroepidemiológico para detecção de antiVHA-IgG, de abril de 2002 a abril de 2004, em 462 escolares de São Luís, com idades compreendidas entre 7 e 14 anos, do ensino fundamental. Participaram 30 escolas aleatoriamente selecionadas, com probabilidade proporcional ao número de alunos matriculados, sendo 23 públicas e 7 privadas. Os dados foram obtidos por meio de questionário estruturado. Para se identificar variáveis independentemente associadas à prevalência do antiVHA-IgG, foi realizada análise de regressão de Poisson múltipla, sendo estimadas as RPs ajustadas e respectivos intervalos de confiança de 95 por cento. Somente permaneceram no modelo final aquelas variáveis associadas com a prevalência da hepatite A com p < 0,10. Foi adotado o nível de significância de 0,05 (α = 0,05). RESULTADOS: A prevalência de antiVHA-IgG foi de 64 por cento, sendo de 71,5 por cento nas escolas públicas e de 36,5 por cento nas privadas. Após análise multivariável, idade de 11 a 14 anos, mais de uma pessoa por dormitório e menos de dois banheiros por domicílio foi associada a maiores prevalências de antiVHA-IgG. Maior escolaridade dos pais esteve associada à menor prevalência de antiVHA-IgG. CONCLUSÕES: A hepatite A é endêmica nos escolares de São Luís, com taxa de prevalência semelhante àquela encontrada em outras regiões do país com condições socioeconômicas e sanitárias similares. Fatores historicamente associados à maior prevalência da hepatite A foram também identificados nesta população.
OBJECTIVES: To estimate the prevalence of antibodies to hepatitis A virus (antiVHA-IgG) in children aged 7-14 years from public and private schools, and to identify demographic, socioeconomic and sanitation factors associated with the prevalence of antiVHA-IgG. METHODS: Seroepidemiological study for the detection of IgG antiVHA. It was conducted from April 2002 to April 2004 with 462 elementary school students from São Luis, ranging from 7 to 14-years of age. Thirty schools randomly selected took part in the study, with a probability proportional to the number of students enrolled; 23 schools were public and 7 were private. Data was obtained through a structured questionnaire. In order to identify the variables independently associated with IgG antiVHA, the Poisson multiple regression analysis was performed, estimating the adjusted PRs and their 95 percent confidence intervals. The variables associated with the prevalence of hepatitis A with p < 0 were the only ones that remained in the final model. The level of significance of 0.05 (α = 0.05) was adopted. RESULTS: The prevalence of antiVHA-IgG was 64 percent, 71.5 percent in public and 36.5 percent in private schools. After multivariate analysis, age 11 to 14 years, more than one person per bedroom, and less than two bathrooms per household were associated with a higher prevalence of antiVHA-IgG. Higher parental education was associated with lower prevalence of antiVHA-IgG. CONCLUSIONS: Hepatitis A is endemic among schoolchildren in São Luís. The prevalence rate was similar to those found in other regions of the country with similar socio-economic and health conditions. Factors historically associated with a higher prevalence of hepatitis A were also identified in this population.
Subject(s)
Adolescent , Child , Female , Humans , Male , Hepatitis A Antibodies/blood , Hepatitis A/blood , Hepatitis A/epidemiology , Immunoglobulin G/blood , Brazil/epidemiology , Risk Factors , Seroepidemiologic StudiesABSTRACT
OBJECTIVES: To estimate the prevalence of antibodies to hepatitis A virus (antiVHA-IgG) in children aged 7-14 years from public and private schools, and to identify demographic, socioeconomic and sanitation factors associated with the prevalence of antiVHA-IgG. METHODS: Seroepidemiological study for the detection of IgG antiVHA. It was conducted from April 2002 to April 2004 with 462 elementary school students from São Luis, ranging from 7 to 14-years of age. Thirty schools randomly selected took part in the study, with a probability proportional to the number of students enrolled; 23 schools were public and 7 were private. Data was obtained through a structured questionnaire. In order to identify the variables independently associated with IgG antiVHA, the Poisson multiple regression analysis was performed, estimating the adjusted PRs and their 95% confidence intervals. The variables associated with the prevalence of hepatitis A with p < 0 were the only ones that remained in the final model. The level of significance of 0.05 (α = 0.05) was adopted. RESULTS: The prevalence of antiVHA-IgG was 64%, 71.5% in public and 36.5% in private schools. After multivariate analysis, age 11 to 14 years, more than one person per bedroom, and less than two bathrooms per household were associated with a higher prevalence of antiVHA-IgG. Higher parental education was associated with lower prevalence of antiVHA-IgG. CONCLUSIONS: Hepatitis A is endemic among schoolchildren in São Luís. The prevalence rate was similar to those found in other regions of the country with similar socio-economic and health conditions. Factors historically associated with a higher prevalence of hepatitis A were also identified in this population.
Subject(s)
Hepatitis A Antibodies/blood , Hepatitis A/blood , Hepatitis A/epidemiology , Immunoglobulin G/blood , Adolescent , Brazil/epidemiology , Child , Female , Humans , Male , Risk Factors , Seroepidemiologic StudiesABSTRACT
Introduçao: Infecçao pelo vírus da hepatite C (HCV) é comum entre portadores de insuficiência renal crônica (IRC) em diálise. A conseqüências desta infecçao nesta populaçao é pouco conhecida. Objetivos: Analisar as características bioquímicas e histológicas da infecçao crônica pelo HCV em portadores de IRC em diálise e compará-las com as de portadores da mesma infecçao com funçao renal normal. Casuística e Métodos: Foram incluídos pacientes com IRC com infecçao crônica pelo HCV, atendidos entre 01/1998 e 12/2000 no Ambulatório de Hepatites da UNIFESP. Como controle foram incluídos portadores da infecçao crônica pelo HCV, com funçao renal normal do mesmo ambulatório, pareados por sexo, tempo de infecçao e idade por ocasiao da mesma. Resultados: Setenta e três portadores de IRC foram incluídos neste estudo. Os índices da atividade da alanina aminotransferase (ALT) e da g-glutamil transferase (gGT) estavam acima do normal em 43 (59 por cento) e 49 (67 por cento) pacientes, respectivamente. A análise histológica demonstrou fígado normal em 1 (1 por cento), fígado reacional em 20 (27 por cento), hepatite crônica lobular em 3 (4 por cento), hepatite crônica sem (HCSANI) periportal em 14 (20 por cento), hepatite crônica com atividade necro-inflamatória (HCCANI) periportal em 34 pacientes (47 por cento). Desta última, sete pacientes (20 por cento) apresentaram graus de atividade maiores que 2. Graus de estadiamento maiores ou iguais a 2 foram encontrados em 15 pacientes (20 por cento), destes apenas um com cirrose hepática. Marcadores histológicos de infecçao pelo HCV foram encontrados em 23 pacientes (32 por cento). Siderose hepática foi observada em 50 pacientes (71 por cento). Nao houve correlaçao entre níveis elevados da ALT e gGT com maiores graus de atividade necro-inflamatória periportal, nem da gGT com maiores graus de estadiamento. Trinta e cinco portadores de IRC foram pareados a pacientes com funçao renal normal. Níveis mais elevados da ALT foram encontrados entre os nao urêmicos. Níveis da gGT nao apresentaram diferença entre os dois grupos. A comparaçao das características histológicas demonstrou os mesmos graus de estadiamento nos dois grupos, sendo que os portadores de IRC apresentaram menores graus de infiltrado inflamatório portal e atividade necro-inflamatória periportal com maiores graus de atividade...au)