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Introduction: Growing adoption of endoscopic procedures in clinical practice has gradually increase the detection rate of gastric polypoid lesions. Aim: To identify the epidemiologic characteristics of gastric polyps as well as changes of these parameters during a 15-year period. Material and methods: We reviewed all the upper endoscopies archived in our database reporting a polypoid lesion from 2003 to 2018. Demographic data, indication for endoscopy, morphological characteristics of polyps, histology, and presence of Helicobacter pylori were collected. We compared the abovementioned data between 2 periods: 2003-2010 and 2010-2018. Results: A total of 989 (4.2%) patients from 23,668 reviewed were identified to harbour a polypoid lesion. Mean patient age was 63.2 years, with 58.8% being female. Most polyps (65.2%) were less than 5 mm in diameter and located in the fundus. Hyperplastic polyps (HPs) were the predominant type (28.6%) while fundic gland polyps (FGPs) were found in 24.1% of patients. Adenomas were the least common type (2.7%). Other pathology was identified in 43.3%. Comparison between the 2 periods revealed a rise of FGPs against HPs with a concomitant shift of location from antrum to fundus and an increase in the number of polyps per patient. Conclusions: FGPs and HPs were the most common polyps found in our cohort, with a change of their pattern during the 15 years. It is imperative to acknowledge the distinct characteristics of gastric polyps so as to properly assess the malignant potential that some of them, or their surrounding gastric mucosa, harbour.
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Although severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) affects mainly the respiratory system, the gastrointestinal tract is also considered a site of viral activity. We hereby present the case of a 74-year-old male patient with the diagnosis of new-onset ulcerative colitis. One month earlier, the patient presented fever, running nose, and diarrhea and was tested positive for SARS-CoV-2. Studies with COVID-19 patients revealed significant changes in gut microbiota composition and alterations in immune responses that could lead to chronic inflammation and manifestations of inflammatory bowel disease. We review additional cases of ulcerative colitis presented after SARS-CoV-2 infection and summarize the possible mechanisms that underlie the gastrointestinal abnormalities in COVID-19 patients.
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ABSTRACT Although severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) affects mainly the respiratory system, the gastrointestinal tract is also considered a site of viral activity. We hereby present the case of a 74-year-old male patient with the diagnosis of new-onset ulcerative colitis. One month earlier, the patient presented fever, running nose, and diarrhea and was tested positive for SARS-CoV-2. Studies with COVID-19 patients revealed significant changes in gut microbiota composition and alterations in immune responses that could lead to chronic inflammation and manifestations of inflammatory bowel disease. We review additional cases of ulcerative colitis presented after SARS-CoV-2 infection and summarize the possible mechanisms that underlie the gastrointestinal abnormalities in COVID-19 patients.
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Non-alcoholic fatty liver disease (NAFLD), the most common chronic liver disorder in Western countries, comprises steatosis to nonalcoholic steatohepatitis (NASH), with the latter having the potential to progress to cirrhosis. The transition from isolated steatosis to NASH is still poorly understood, but lipidomics approach revealed that the hepatic lipidome is extensively altered in the setting of steatosis and steatohepatitis and these alterations correlate with disease progression. Recent data suggest that both quantity and quality of the accumulated lipids are involved in pathogenesis of NAFLD. Changes in glycerophospholipid, sphingolipid, and fatty acid composition have been described in both liver biopsies and plasma of patients with NAFLD, implicating that specific lipid species are involved in oxidative stress, inflammation, and cell death. In this article, we summarize the findings of main human lipidomics studies in NAFLD and delineate the currently available information on the pathogenetic role of each lipid class in lipotoxicity and disease progression.
