Background: The aim of this study was to investigate the effects of intramuscular IL-8 injection on hepatic tissues using an in vivo histopathological animal model.
Material And Methods: Twelve New Zealand white rabbits were used for this randomized, controlled, single-blinded interventional study. For 6 days, 1 gluteus maximus muscle was injected daily with 1 mcg/kg of IL-8 in 6 rabbits (Group A). The remaining 6 rabbits (to determine to normal porto-hepatic morphology of the rabbit genus) were in the sham group (Group B). At the end of the 7th day, all rabbits were killed and livers were meticulously harvested. Microscopically, regional tissues were scored according to portal inflammation, focal necrosis, piecemeal necrosis, and total impact.
Results: Total impact score, portal inflammation, focal necrosis, and piecemeal necrosis were the histopathologic changes present in a higher incidence in the IL-8 group compared with the control group. The differences were significant when the groups were compared according to total impact score, portal inflammation, focal necrosis, and piecemeal necrosis according to Pearson's correlation (p<0.05). The most significant differences were detected at the total impact scores (p=0.002) and the portal inflammation scores (p=0.008).
Conclusions: Our results showed that IL-8 may damage hepatocytes. This can be the determined target for new therapeutic strategies. Further trials should be designed to obtain definitive results.
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http://dx.doi.org/10.12659/MSMBR.889347 | DOI Listing |
Liver Int
January 2025
Unidad de Infección Viral e Inmunidad, Centro Nacional de Microbiología (CNM), Instituto de Salud Carlos III (ISCIII), Madrid, Spain.
Background And Aims: In response to direct-acting antivirals (DAAs) therapy, patients who experience a decrease in hepatic venous pressure gradient (HVPG) considerably reduce liver complications and have increased survival. This study aimed to assess the metabolomic changes associated with the changes in HVPG from the start of DAA therapy until 48 weeks after effective DAA therapy in patients with advanced HCV-related cirrhosis.
Methods: We carried out a multicenter longitudinal study in 31 patients with advanced hepatitis C virus (HCV)-related cirrhosis.
United European Gastroenterol J
December 2024
Division of Gastroenterology and Hepatology, Department of Medicine III, Medical University of Vienna, Vienna, Austria.
Background: Portal hypertension (PH) resulting from static and dynamic intrahepatic changes drives liver-related complications even after removing the underlying aetiological factor.
Objective: We investigated the impact of inflammation on the dynamic component of PH during disease regression in animal models of toxin-induced cirrhosis and patients with alcohol-related cirrhosis.
Methods: In mice, cirrhosis was induced via toxin application for 12 weeks followed by toxin-withdrawal allowing for one or 2 weeks of regression.
JCI Insight
December 2024
Burnett School of Biomedical Sciences, Division of Immunity and Pathogenesi, University of Central Florida, Orlando, United States of America.
Specialized memory CD4 T cells that reside long-term within tissues are critical components of immunity at portals of pathogen entry. In the lung, such tissue-resident memory (TRM) cells are activated rapidly after infection and promote local inflammation to control pathogen levels before circulating T cells can respond. However, optimal clearance of Influenza A virus can require TRM and responses by other virus-specific T cells that reach the lung only several days after their activation in secondary lymphoid organs.
View Article and Find Full Text PDFIran J Pathol
April 2024
Department of Pathology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
Background & Objective: Mast cells play a role in the immune responses to fatty liver disease. The present study aimed to investigate the diagnostic value of hepatic mast cell concentration (MCC) in NAFLD and NASH severity and fibrosis grade.
Methods: The present cross-sectional unremarkable hepatic histology, NAFLD, or NASH cases were enrolled.
Eur J Neurol
January 2025
Department of Internal Medicine, Hospital Bichat-Claude Bernard, Assistance Publique Hôpitaux de Paris, Université Paris Cité, Paris, France.
Background: Susac syndrome (SuS) is a rare immune-mediated microangiopathy with potential disabling evolution. We aimed to analyze brain microstructural damage through diffusion tensor imaging (DTI) in SuS and determine its association with poor outcomes.
Method: CarESS study is a prospective multicenter national cohort study of patients with SuS.
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