Publications by authors named "Petta S"

Background: Studies have reported an association between metabolic dysfunction-associated steatotic liver disease (MASLD) and an increased risk of developing atrial fibrillation (AF). However, the magnitude of the risk and whether this risk varies with the severity of MASLD remains uncertain.

Methods: In this systematic review and meta-analysis, we searched three large electronic databases using predefined keywords to identify cohort studies (published up to 30 September 2024) in which MASLD was diagnosed by liver biopsy, imaging methods, International Classification of Diseases (ICD) codes, or blood-based scores.

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Background: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a global epidemic. MASLD has a strong genetic component, and a common missense variant (rs2642438) in the mitochondrial amidoxime-reducing component 1 (MARC1) gene confers protection against its onset and severity. However, there are contrasting results regarding the mechanisms entangling this protection.

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Background & Aims: Noninvasive tests (NITs) for ruling-out clinical significant portal hypertension (CSPH) and high-risk varices (HRVs) in patients with primary biliary cholangitis (PBC) and compensated advanced chronic liver disease (cACLD) are lacking. We evaluated NITs in these patients and the influence of cholestasis on their performance.

Methods: Consecutive patients from the "Italian PBC registry" and 2 United Kingdom large-volume PBC referral centers with upper endoscopy within 6 months from biochemical evaluation and transient elastography were included.

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Background And Aims: Metabolic dysfunction-associated steatotic liver disease (MASLD) is a heterogenous clinical and histopathological entity, where multiple metabolic co-factors are intertwined with high interindividual variability. The impact and severity of each factor (including obesity and type 2 diabetes) define a systemic dysmetabolism that can lead to either advanced liver disease and its complication (including hepatocellular carcinoma and clinical events related to portal hypertension) or extrahepatic events: incident cardiovascular disease, chronic kidney disease and extrahepatic cancers. The balance between environmental factors and genetic susceptibility has unique implications in MASLD: the intermittent injury of metabolic co-factors, their fluctuation over time and their specific management, are counterbalanced by the presence of gene variants that can significantly impact the disease at multiple levels.

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Purpose: To assess the performance and the reproducibility of ultrasound-guided attenuation parameter (UGAP) and two-dimensional shear wave elastography (2D-SWE) in patients with biopsy-proven metabolic dysfunction-associated steatotic liver disease (MASLD).

Methods: This study included consecutive adult patients with MASLD who underwent ultrasound with UGAP, 2D-SWE and percutaneous liver biopsy. The median values of 12 consecutive UGAP measurements were acquired by two independent radiologists (R1 and R2).

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Article Synopsis
  • Scientists studied a health problem called MASH, which affects people's livers, and worked on two tests to help doctors tell if someone has it.
  • They looked at data from over 3,000 people to make sure their first test, called acMASH, worked well, and then created a new test called acFibroMASH to find more severe cases.
  • The new acFibroMASH test was better at predicting who might have future liver problems compared to another test, showing it's a useful tool for doctors to keep patients healthy.
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Background & Aims: Current screening pathways, developed from tertiary care cohorts, underestimate the presence of Metabolic-dysfunction associated steatotic liver disease (MASLD) in patients with type 2 diabetes mellitus (T2DM) in the community. We developed, validated, and assessed cost-effectiveness of a new score for screening the presence of fibrosis due to MASLD in primary care.

Methods: Consecutive T2DM patients underwent screening for liver diseases with transient elastography (TE).

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Background And Aims: Patients with overt or occult hepatitis B virus (HBV) infection receiving immunosuppressive treatments have a wide risk of HBV reactivation (HBVr). We performed meta-analysis with decision curve analyses (DCA) to estimate the risk of HBVr in HBsAg-negative anti-HBc-positive patients naïve to nucleos(t)ide analogues (NAs) receiving immunosuppressive treatments.

Approach And Results: Studies were identified through literature search until October 2022.

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Importance: The recent change in terminology from nonalcoholic fatty liver disease (NAFLD) to metabolic dysfunction-associated fatty liver disease (MAFLD) and metabolic dysfunction-associated steatotic liver disease (MASLD) highlights the link between hepatic steatosis and metabolic dysfunction, taking out the stigmata of alcohol.

Objective: We compared the effects of NAFLD and MAFLD definitions on the risk of overall and cardiovascular (CV) mortality, liver-related events (LRE), nonfatal CV events (CVE), chronic kidney disease (CKD), and extra-hepatic cancers (EHC).

Data Sources And Study Selection: We systematically searched four large electronic databases for cohort studies (published through August 2023) that simultaneously used NAFLD and MAFLD definitions for examining the risk of mortality and adverse CV, renal, or oncological outcomes associated with both definitions.

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Article Synopsis
  • Statins provide multiple benefits for patients with metabolic-associated steatotic liver disease (MASLD), particularly in reducing long-term risks of all-cause mortality and liver-related clinical events (LREs).
  • A study followed 7988 patients for nearly 4.6 years, revealing that statin users had significantly lower risks of mortality (HR=0.233) and LREs (HR=0.380), as well as slower liver stiffness progression rates.
  • While statin usage is linked to a decrease in the progression of liver stiffness, it did not significantly correlate with liver stiffness regression, suggesting a complex relationship in liver health management.
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  • * Results showed a significant association, with a pooled odds ratio of 1.87 indicating an increased prevalence of urolithiasis in individuals with MASLD, even after controlling for various confounding factors.
  • * However, the prospective cohort study revealed no significant association between MASLD and the risk of developing new cases of urolithiasis, although a notable link was found in men.
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Background: Artificial intelligence (AI)-based chatbots have shown promise in providing counseling to patients with metabolic dysfunction-associated steatotic liver disease (MASLD). While ChatGPT3.5 has demonstrated the ability to comprehensively answer MASLD-related questions in English, its accuracy remains suboptimal.

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Background: Metabolic dysfunction-associated steatotic liver disease (MASLD) is currently the most common chronic liver disease and an important cause of cirrhosis and hepatocellular carcinoma. It is strongly associated with type 2 diabetes and obesity. Because of the huge number of patients at risk of MASLD, it is imperative to use non-invasive tests appropriately.

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Respiratory tract diseases caused by influenza virus and SARS-CoV-2 can represent a serious threat to the health of pregnant women. Immunological remodulation for fetus tolerance and physiological changes in the gestational chamber expose both mother and child to fearful complications and a high risk of hospitalization. Vaccines to protect pregnant women from influenza and COVID-19 are strongly recommended and vaccine co-administration could be advantageous to increase coverage of both vaccines.

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Patients with inflammatory bowel disease (IBD) believe that diet plays a significant role in the pathogenesis of their disease and the exacerbation of their symptoms. They often adopt restrictive diets that can lead to malnutrition, anxiety, and stress. Recent studies have found a correlation between IBD and eating disorders, such as anorexia nervosa and ARFID (Avoidant Restrictive Food Intake Disorder).

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Metabolic dysfunction-associated steatotic liver disease (MASLD), with its steadily increasing prevalence, represents now a major problem in public health. A proper referral could benefit from tools allowing more precise risk stratification. To this end, in recent decades, several genetic variants that may help predict and refine the risk of development and progression of MASLD have been investigated.

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Metabolic Dysfunction-Associated Steatotic Liver (MASL), previously named nonalcoholic fatty liver (NAFL), is a multifactorial disease in which metabolic, genetic, and environmental risk factors play a predominant role. Obesity and type 2 diabetes act as triggers of the inflammatory response, which contributes to the progression of MASL to Metabolic Dysfunction-Associated Steatohepatitis and the development of hepatocellular carcinoma. In the liver, several parenchymal, nonparenchymal, and immune cells maintain immunological homeostasis, and different regulatory pathways balance the activation of the innate and adaptative immune system.

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Article Synopsis
  • * The FDA recently conditionally approved resmetirom, a new drug targeting liver health, which has shown effectiveness in treating non-cirrhotic metabolic dysfunction-associated steatohepatitis (MASH) by reducing liver fat and improving liver function without significant impact on body weight.
  • * While resmetirom has a good safety profile with mostly mild side effects, challenges in patient selection and ongoing monitoring are needed for successful treatment, marking it as a significant advancement in addressing MASLD/MASH.
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Importance: Metabolic dysfunction-associated steatotic liver disease (MASLD) is currently the most common chronic liver disease worldwide. It is important to develop noninvasive tests to assess the disease severity and prognosis.

Objective: To study the prognostic implications of baseline levels and dynamic changes of the vibration-controlled transient elastography (VCTE)-based scores developed for the diagnosis of advanced fibrosis (Agile 3+) and cirrhosis (Agile 4) in patients with MASLD.

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(1) Background: Nonalcoholic Steatohepatitis/Nonalcoholic Fatty Liver Disease (NASH/NAFLD) is the most recurrent chronic liver disease. NASH could present with a cholestatic (C) or hepatic (H) pattern of damage. Recently, we observed that increased Epithelial Cell Adhesion Molecule (EpCAM) expression was the main immunohistochemical feature to distinguish C from H pattern in NASH.

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Background: ANGPTL3 (angiopoietin-like protein 3) is a circulating protein with a key role in maintaining lipoprotein homeostasis. A monoclonal antibody against ANGPTL3 is an approved and well-tolerated treatment to reduce lipoproteins in familial hypercholesterolemia homozygotes. However, the reduction of hepatic ANGPTL3 synthesis using an antisense oligonucleotide unexpectedly resulted in a dose-dependent increase in liver lipid content and circulating transaminases, resulting in the termination of the clinical trial.

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Article Synopsis
  • Steatotic liver disease (SLD) is the most common chronic liver condition, but there's no approved treatment due to unclear causes.
  • Elevated levels of interleukin 32 (IL-32) are linked to severe SLD, with research showing that IL-32β increases fat synthesis in liver cells while reducing it when IL32 is decreased.
  • A genetic variant (rs76580947) of IL32 is associated with lower IL-32 levels and may offer protection against SLD, indicating that reducing IL32 could be a potential therapeutic approach.
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  • This study investigates the prevalence of metabolic dysfunction associated steatotic liver disease (MASLD) and advanced fibrosis among relatives of patients with advanced MASLD, highlighting the condition's genetic aspects.
  • Results showed that 56.8% of relatives had MASLD, with 14.4% presenting advanced fibrosis, indicating a significant risk, especially linked to factors like body mass index and diabetes.
  • Despite some genetic risk variants being more common among affected individuals, they did not effectively enhance the screening process for advanced fibrosis in relatives, underscoring the need for family screening based on clinical guidelines.
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Objective: Hyperferritinaemia is associated with liver fibrosis severity in patients with metabolic dysfunction-associated steatotic liver disease (MASLD), but the longitudinal implications have not been thoroughly investigated. We assessed the role of serum ferritin in predicting long-term outcomes or death.

Design: We evaluated the relationship between baseline serum ferritin and longitudinal events in a multicentre cohort of 1342 patients.

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