ABSTRACT
Introduction: Autoimmune hepatitis is a liver inflammatory disorder characterized by portal lymphoplasmacytic hepatitis with interface activity and lobular inflammation. Objective: The objective of this study is to identify clinical features associated with advanced age and significant inflammation in liver histology. Methods: This cross-sectional analytical study evaluated the medical records of adult patients with hepatitis who received treatment in the gastroenterology and hepatology ward of a tertiary university hospital. Bivariate analysis was conducted to identify characteristics associated with an age of 50 years or older and significant histological inflammatory activity. Results: A total of 47 patients were included, with a mean age of 42.8 ± 16.0 (43.0) years. Among them, 80.9% were women, and 31.9% were 50 years or older. Liver biopsy was performed on 31 patients, and 29.0% exhibited significant inflammation. When comparing age groups, individuals aged 50 years and older had a higher median γ-glutamyl transferase (GGT; 129 vs. 282 U/L; p = 0.034) and a higher proportion of significant inflammation (50% vs. 6.7%; p = 0.024). Patients with significant inflammation on liver biopsy had a higher mean age (63.7 ± 14.0 vs. 41.0 ± 14.4; p = 0.001) and a higher proportion of patients aged 50 years or older (85.7% vs. 66.7%; p = 0.024) compared to those with mild inflammation. Conclusions: Individuals aged 50 years and older exhibited a higher median GGT and a greater proportion of significant inflammation in liver histology.
Introducción: la hepatitis autoinmune es un trastorno inflamatorio hepático caracterizado histológicamente por hepatitis linfoplasmocítica portal con actividad de interfase e inflamación lobulillar. Objetivos: identificar las características clínicas asociadas con la edad avanzada y con una inflamación significativa en la histología hepática. Métodos: estudio analítico transversal que evaluó historias clínicas de pacientes adultos con hepatitis atendidos en la sala de gastroenterología y hepatología de un hospital universitario terciario. Se realizó un análisis bivariado para identificar las características asociadas a la edad igual o mayor a 50 años y la actividad inflamatoria histológica significativa. Resultados: se incluyó a 47 pacientes con una edad media de 42,8 ± 16,0 (43,0) años. Además, el 80,9% de ellos eran mujeres y el 31,9% tenían 50 años o más. 31 pacientes fueron sometidos a biopsia hepática y el 29,0% presentó inflamación significativa. Cuando se comparó en términos de edad, los individuos de 50 años o más presentaron medianas más altas de γ-glutamiltransferasa (GGT; 129 frente a 282 U/L; p = 0,034) y una mayor proporción de inflamación significativa (50% frente a 6,7%; p = 0,024). Los pacientes con inflamación significativa en la biopsia hepática presentaron mayor edad media (63,7 ± 14,0 frente a 41,0 ± 14,4; p = 0,001) y mayor proporción de pacientes con edad igual o superior a 50 años (85,7% frente a 66,7%; p = 0,024) que las personas con inflamación leve. Conclusiones: los individuos de 50 años o más presentaron medianas más altas de GGT y mayor proporción de inflamación significativa en la histología hepática.
ABSTRACT
ABSTRACT Background Viral hepatitis C is a significant public health challenge. The disease may remain clinically silent in both acute and chronic forms, and chronic infections may progress to advanced disease such as cirrhosis and hepatocellular carcinoma, requiring costly treatment, compromising the patient's quality of life and even leading to death. For this reason, it is one of the most frequent indications for liver transplantation. Although treatment with direct-acting antivirals represents remarkable progress, many patients are still infected and even those who cleared the viral infection must be followed due to their previous hepatic lesions, especially regarding the disturbances of lobular architecture and the sanguineal and lymphatic vessels. Objective To assess immunohistochemical aspects of lymphatic sprouts and mature lymphatic vascularity with histological variables of liver injury attributable to hepatitis C virus (HCV) and fatty disease. Methods The present study included 72 liver biopsies of cases with chronic hepatitis C. Morphologic changes reflecting "staging" and "activity" were analyzed. Immunohistochemical reactions were performed with monoclonal antibody D2-40 anti-podoplanin. Major histological variables were also semiquantified so as to enable the search for possible associations among histological and Immunohistochemical criteria, as well as with genotypes 1 and 3 of HCV. Results Histological findings showed that the different degrees of strutural changes were well represented in this casuistic. Intralobular/parenchymal necro-inflammatory activity was predominantly mild to moderate. Most cases did not show major evidences of fatty disease, which was found significantly higher in cases infected with HCV genotype 3. The amount of portal lymphatic sprouts increased along with the progression of structural changes, maximal at cirrhosis. Portal lymphatic sprouts as well as portal mature lymphatic vessels also showed an increase parallel to the increase in the degree of portal/septal inflammatory infiltrate. In the present study, no significant association was found between the proportion of portal lymphatic sprouts or portal mature lymphatic vessels and the degree of periportal/periseptal activity. No significant relations were detected between lymphatic sprouts/mature vessels and periportal or parenchymal inflammatory activity, nor with infections due to HCV genotype 1 or 3. Conclusion Visualization and semiquantitation of sprouts and mature lymphatic vessels were clearly yielded by Immunohistochemical staining with monoclonal antibody D2-40. The amount of lymphatics was increased along fibrogenic process, significantly related to progression of liver disease and maximal at cirrhosis. No significant relations were detected with necro-inflammatory activity at interface or in the parenchyma.
RESUMO Contexto A hepatite C é um relevante problema de saúde pública. A doença pode permanecer clinicamente silenciosa tanto na forma aguda como na crônica e as infecções crônicas podem progredir para doenças avançadas, tais como cirrose e carcinoma hepatocelular (CHC), requerendo tratamentos dispendiosos, comprometendo a qualidade de vida do paciente e até mesmo levando à morte. Por esta razão, é uma das indicações mais frequentes para o transplante hepático. Apesar da introdução do tratamento com antivirais de ação directa (AAD) representar um progresso notável, muitos pacientes não receberam o tratamento e continuam infectados, e mesmo aqueles que eliminaram a infecção viral devem ser seguidos devido às lesões hepáticas anteriores, especialmente no que diz respeito às alterações da arquitetura lobular e dos vasos sanguíneos e linfáticos. Objetivo Avaliar os aspectos imuno-histoquímicos dos brotos linfáticos e dos vasos linfáticos "maduros" com variáveis histológicas de lesão hepática atribuíveis ao vírus da hepatite C (VHC) e à doença gordurosa. Métodos O presente estudo incluiu 72 biópsias hepáticas em pacientes com hepatite C crônica. Foram analisadas alterações estruturais relativas a "estadiamento" e "atividade". Reações imuno-histoquímicas foram realizadas com anticorpo D2-40 anti-podoplanina. As principais variáveis histológicas também foram semiquantificadas, de modo a permitir a procura de possíveis associações entre os critérios histológicos e imunohistoquímicos, bem como com os genótipos 1 e 3 do VHC. Resultados Os achados histológicos mostraram que os diferentes graus de alterações estrutural estavam bem representados nesta casuística. A atividade necro-inflamatória lobular/parenquimatosa foi predominantemente leve à moderada. A maioria dos casos não apresentava grandes evidências de doença gordurosa, que foi encontrada significativamente mais elevada nos casos infectados com o genótipo 3 do VHC. A quantidade de brotos linfáticos portais aumentou com a progressão de alterações estruturais, sendo máxima na cirrose. Os brotos linfáticos portais, bem como os vasos linfáticos "maduros" portais também mostraram um aumento paralelo ao aumento do grau de infiltrado inflamatório portal/septal. No presente estudo, não foi encontrada qualquer associação significativa entre a proporção de brotos linfáticos portais ou vasos linfáticos maduros portais e o grau de atividade periportal/periseptal. Não foram detectadas relações significativas entre os brotos linfáticos/vasos maduros e a atividade inflamatória periportal ou atividade inflamatória parenquimatosa, nem com infecções devido ao genótipo 1 ou 3 do VHC. Conclusão A reação imunohistoquímica com anticorpo monoclonal D2-40 possibilitou a visualização e a semiquantitação de brotos e vasos linfáticos "maduros" nas amostras obtidas por biópsia hepática. A quantidade de linfáticos aumentou ao longo do processo fibrogênico, significativamente relacionada com a progressão da doença hepática e máxima na cirrose. Não foram detectadas relações significativas com a atividade necro-inflamatória periportal ou parenquimatosa.
ABSTRACT
Background Viral hepatitis C is a significant public health challenge. The disease may remain clinically silent in both acute and chronic forms, and chronic infections may progress to advanced disease such as cirrhosis and hepatocellular carcinoma, requiring costly treatment, compromising the patient's quality of life and even leading to death. For this reason, it is one of the most frequent indications for liver transplantation. Although treatment with direct-acting antivirals represents remarkable progress, many patients are still infected and even those who cleared the viral infection must be followed due to their previous hepatic lesions, especially regarding the disturbances of lobular architecture and the sanguineal and lymphatic vessels. Objective To assess immunohistochemical aspects of lymphatic sprouts and mature lymphatic vascularity with histological variables of liver injury attributable to hepatitis C virus (HCV) and fatty disease. Methods The present study included 72 liver biopsies of cases with chronic hepatitis C. Morphologic changes reflecting "staging" and "activity" were analyzed. Immunohistochemical reactions were performed with monoclonal antibody D2-40 anti-podoplanin. Major histological variables were also semiquantified so as to enable the search for possible associations among histological and Immunohistochemical criteria, as well as with genotypes 1 and 3 of HCV. Results Histological findings showed that the different degrees of strutural changes were well represented in this casuistic. Intralobular/parenchymal necro-inflammatory activity was predominantly mild to moderate. Most cases did not show major evidences of fatty disease, which was found significantly higher in cases infected with HCV genotype 3. The amount of portal lymphatic sprouts increased along with the progression of structural changes, maximal at cirrhosis. Portal lymphatic sprouts as well as portal mature lymphatic vessels also showed an increase parallel to the increase in the degree of portal/septal inflammatory infiltrate. In the present study, no significant association was found between the proportion of portal lymphatic sprouts or portal mature lymphatic vessels and the degree of periportal/periseptal activity. No significant relations were detected between lymphatic sprouts/mature vessels and periportal or parenchymal inflammatory activity, nor with infections due to HCV genotype 1 or 3. Conclusion Visualization and semiquantitation of sprouts and mature lymphatic vessels were clearly yielded by Immunohistochemical staining with monoclonal antibody D2-40. The amount of lymphatics was increased along fibrogenic process, significantly related to progression of liver disease and maximal at cirrhosis. No significant relations were detected with necro-inflammatory activity at interface or in the parenchyma.