Liver Steatosis: Better Predictor of CKD in MAFLD Than Liver Fibrosis as Determined by Transient Elastography With Controlled Attenuation Parameter

Metabolic associated steatotic liver disease in renal transplant recipients: a retrospective cohort study

Metabolic associated steatotic liver disease (MASLD) is a major contributor to chronic liver disease, with rising prevalence. Chronic kidney disease (CKD) shares risk factors with MASLD, including obesity, diabetes, hypertension, and metabolic syndrome. CKD prevalence in MASLD patients ranges from 4 to 40%. The interplay between MASLD and CKD may influence disease progression through intestinal barrier changes, uremic toxins, and glucocorticoid metabolism. Limited data exist on steatosis in renal transplant recipients and its impact on cardiovascular disease (CVD). This study investigates the prevalence and factors associated with steatosis and liver stiffness in kidney transplant patients, and secondarily its relationship with CVD history. Two hundred kidney transplant patients at Salerno University Hospital were studied. The data included demographics, clinical and laboratory findings, abdominal ultrasonography (US), liver stiffness, and controlled attenuation parameter (CAP). Cardiovascular disease (CVD) history was also recorded. Statistical significance was set at p < 0.05. Of the cohort, 69% were male, with a mean age of 56.8 years. Steatosis was found in 45.5%, with 11.1% at risk of fibrosis. Steatosis was associated with higher BMI (28.5 vs. 25.5, p = 0.0001) and metabolic syndrome (30.8% vs. 11.0%, p = 0.001). CAP was linked to self-reported male gender and eGFR (p < 0.05), while fibrosis correlated with age, self-reported male gender, and HDL < 40 mg/dL. CVD prevalence was 14.5%, with no significant association with steatosis. MASLD and metabolic syndrome were highly prevalent in kidney transplant recipients, though no significant link was found between steatosis and CVD history.

Metabolic Dysfunction Associated-Steatotic Liver Disease (MASLD) and Cardiovascular Risk: Embrace All Facets of the Disease

PURPOSE OF REVIEW

In recent years, the terms "metabolic associated fatty liver disease-MAFLD" and "metabolic dysfunction-associated steatotic liver disease-MASLD" were introduced to improve the encapsulation of metabolic dysregulation in this patient population, as well as to avoid the negative/stigmatizing terms "non-alcoholic" and "fatty".

RECENT FINDINGS

There is evidence suggesting links between MASLD and coronary heart disease (CHD), heart failure (HF), atrial fibrillation (AF), stroke, peripheral artery disease (PAD) and chronic kidney disease (CKD), although the data for HF, AF, stroke and PAD are scarcer. Physicians should consider the associations between MASLD and CV diseases in their daily practice. Based on this knowledge and current guidelines, they should also assess and manage CV risk/co-morbidities in such patients. It is important to further investigate the impact of MASLD on CV outcomes, a knowledge that will help to elucidate the clinical implications of this "novel" liver entity.

Hepatitis C Virus Infection in Hemodialysis Patients in the Era of Direct-Acting Antiviral Treatment: Observational Study and Narrative Review

Background and Objectives: Hepatitis C virus (HCV) infection is a major global public health concern, particularly in hemodialysis (HD) patients. This study aims to evaluate the demographic, clinical, and laboratory characteristics of HCV-positive patients undergoing HD and assess the long-term impact of direct-acting antivirals (DAAs) on patient outcomes. Moreover, a narrative review aims to summarize the current knowledge regarding HCV treatment in HD patients. The search in the PubMed, Google Scholar, and Scopus databases identified 48 studies relevant to our topic, 18 regarding clinical history and 29 related to HCV treatment. Methods: A retrospective analysis was performed on 165 HD patients from Bihor County HD centers, Romania, between 2014 and 2024. The cohort was divided into two groups: 54 patients who tested positive for HCV and 111 controls who were HCV-negative. Data collected from GPs included demographic information, comorbidities, laboratory parameters, and psychological assessments. Outcomes were evaluated at over 5 years after DAA treatment. A literature review was conducted using PubMed and Google Scholar to identify relevant studies on HCV in HD patients from 1989 to 2024. Results: Laboratory results showed similar parameters across groups, except for lower serum cholesterol levels in the HCV-positive DAA-treated group vs. HCV-positive non-treated ones (155.607 mg% vs. 170.174 mg%, p = 0.040) and increased ALT levels when comparing the same groups (29.107 vs. 22.261, p = 0.027), whereas comorbidities did not differ significantly. The incidence of malignancies was significantly higher among HCV-positive compared to HCV-negative patients (20.3% vs. 8.1%, p = 0.023), mainly among those treated with DAAs, highlighted by the multivariate analysis. Cardiovascular disease remains the leading cause of mortality regardless of HCV status or the use of antiviral therapy. Psychological assessments revealed more severe depression in HCV-positive patients compared to their HCV-negative counterparts. Conclusions: HCV infection in the hemodialysis population typically follows a subclinical course. At over five years after DAA therapy, the results indicate a stabilization of the liver function and the absence of major complications. However, the incidence of malignancies remains high in HCV-positive patients.

Interplay between metabolic dysfunction-associated fatty liver disease and renal function: An intriguing pediatric perspective

Over recent years, the nomenclature of non-alcoholic fatty liver disease has undergone significant changes. Indeed, in 2020, an expert consensus panel proposed the term "Metabolic (dysfunction) associated fatty liver disease" (MAFLD) to underscore the close association of fatty liver with metabolic abnormalities, thereby highlighting the cardiometabolic risks (such as metabolic syndrome, type 2 diabetes, insulin resistance, and cardiovascular disease) faced by these patients since childhood. More recently, this term has been further replaced with metabolic associated steatotic liver disease. It is worth noting that emerging evidence not only supports a close and independent association of MAFLD with chronic kidney disease in adults but also indicates its interplay with metabolic impairments. However, comparable pediatric data remain limited. Given the progressive and chronic nature of both diseases and their prognostic cardiometabolic implications, this editorial aims to provide a pediatric perspective on the intriguing relationship between MAFLD and renal function in childhood.

Interplay between metabolic dysfunction-associated fatty liver disease and chronic kidney disease: Epidemiology, pathophysiologic mechanisms, and treatment considerations

The recently proposed nomenclature change from non-alcoholic fatty liver disease to metabolic dysfunction-associated fatty liver disease (MAFLD) has resulted in the reappraisal of epidemiological trends and associations with other chronic diseases. In this context, MAFLD appears to be tightly linked to incident chronic kidney disease (CKD). This association may be attributed to multiple shared risk factors including type 2 diabetes mellitus, arterial hypertension, obesity, dyslipidemia, and insulin resistance. Moreover, similarities in their molecular pathophysiologic mechanisms can be detected, since inflammation, oxidative stress, fibrosis, and gut dysbiosis are highly prevalent in these pathologic states. At the same time, lines of evidence suggest a genetic predisposition to MAFLD due to gene polymorphisms, such as the PNPLA3 rs738409 G allele polymorphism, which may also propagate renal dysfunction. Concerning their management, available treatment considerations for obesity (bariatric surgery) and novel antidiabetic agents (glucagon-like peptide 1 receptor agonists, sodium-glucose co-transporter 2 inhibitors) appear beneficial in preclinical and clinical studies of MAFLD and CKD modeling. Moreover, alternative approaches such as melatonin supplementation, farnesoid X receptor agonists, and gut microbiota modulation may represent attractive options in the future. With a look to the future, additional adequately sized studies are required, focusing on preventing renal complications in patients with MAFLD and the appropriate management of individuals with concomitant MAFLD and CKD.