Publications by authors named "Vitali C"

Background & Aim: An unbiased genome-first approach can expand the molecular understanding of specific genes in disease-agnostic biobanks for deeper phenotyping. represents a good candidate for this approach due to its known association with steatotic liver disease (SLD).

Methods: We screened participants with whole-exome sequences in the Penn Medicine Biobank (PMBB, n >40,000) and the UK Biobank (UKB, n >200,000) for protein-altering variants in and evaluated their association with liver phenotypes and clinical outcomes.

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Background: Autologous haematopoietic stem cell transplantation (AHSCT) is more effective than conventional immunosuppressive therapies (CIT) in improving the outcome of patients with rapidly progressive diffuse cutaneous systemic sclerosis (dcSSc). So far, there is still a paucity of data comparing AHSCT with rituximab (RTX). Aim of the study is to retrospectively compare, in patients with dcSSc, the effectiveness of AHSCT with that of RTX and CIT.

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Article Synopsis
  • * Results show that lower voice intensity correlates with greater swallowing impairment, with significant data suggesting a strong risk of dysphagia when voice intensity drops below 60 dB.
  • * The findings suggest that using instrumental voice assessments is an effective, cost-efficient way to identify individuals with PD who may need further evaluation for swallowing issues, potentially reducing serious health complications.
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  • Metabolic dysfunction-associated Fatty Liver Disease (MAFLD) has become a leading cardiometabolic condition, and the transcriptional co-regulator FOG2 plays a key role in regulating liver lipid metabolism.
  • A specific genetic variant of FOG2 (rs28374544) found mainly in individuals of African descent is linked to liver damage and cirrhosis, and analysis both in vitro and genomically suggests it influences the mTORC1 pathway.
  • The study indicates that FOG2 may promote MAFLD through mechanisms such as increased lipid production and accumulation, shedding light on its role in the disease's underlying molecular processes.
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Objectives: BAG3 (Bcl2-associated athanogene3) is able to induce the transformation of cancer-associated fibroblasts to alpha smooth muscle actin (a-SMA) positive (+) myofibroblasts. In systemic sclerosis (SSc), a-SMA+ myofibroblasts also play an important role in the progression of fibrosis in the skin and involved internal organs. The aim of the study was to investigate whether BAG3 is overexpressed in SSc and may be a biomarker of fibrogenesis.

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Familial lecithin:cholesterol acyltransferase (LCAT) deficiency (FLD) is an ultra-rare autosomal recessive disease characterized by very low high-density lipoprotein cholesterol (HDL-C) levels, corneal opacity, anemia, and progressive renal disease. The rate and severity of renal disease are variable across FLD patients and the biomarkers and risk factors for disease progression are poorly understood. Here we report a 30 year-long comparative analysis of the clinical and laboratory biomarkers in an FLD patient with accelerated renal decline, who underwent two kidney and one liver transplantations.

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The analysis of traces of injuries can be difficult in cases of charred human remains since the alteration and fragmentation are high. The aim of this study is to explore the use of X-Ray Fluorescence (XRF) technique as a screening tool for detecting and analyzing gunshot residues (GSR) on cremated and highly fragmented materials, as it is a technique that allows for fast qualitative investigations without altering the sample or requiring sample preparation. The study was carried out on two steps: firstly, on completed skeletonized bones to verify if GSR survive to burning; secondly, we considered a more realistic situation, in which soft tissues were present before the shooting.

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Background: We report data from stage 1 of an ongoing 2-staged, phase 1/2 randomized clinical trial with a 4-component generalized modules for membrane antigens-based vaccine against Shigella sonnei and Shigella flexneri 1b, 2a, and 3a (altSonflex1-2-3; GSK).

Methods: Europeans aged 18-50 years (N = 102) were randomized (2:1) to receive 2 injections of altSonflex1-2-3 or placebo at 3- or 6-month interval. Safety and immunogenicity were assessed at prespecified time points.

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Background: The ERLIN1 p.Ile291Val single-nucleotide polymorphism (rs2862954) is associated with protection from steatotic liver disease (SLD), but effects of this variant on metabolic phenotypes remain uncertain.

Methods: Metabolic phenotypes and outcomes associated with ERLIN1 p.

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Shigellosis is one of the leading causes of diarrheal disease in low- and middle-income countries, particularly in young children, and is more often associated with antimicrobial resistance. Therefore, a preventive vaccine against shigellosis is an urgent medical need. We have proposed Generalised Modules for Membrane Antigens (GMMA) as an innovative delivery system for O-antigen, and an Alhydrogel formulation (1790GAHB) has been extensively tested in preclinical and clinical studies.

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Article Synopsis
  • The study investigates the association between a common variant of the MLXIPL gene, specifically Gln241His, and its impact on metabolic health, particularly regarding triglyceride levels and steatotic liver disease (SLD).
  • Findings from two large biobanks indicate that individuals with this genetic variant often have lower triglyceride levels and certain liver enzymes but are at a higher risk for SLD, especially if they are female, obese, or carry another specific variant (PNPLA3 I148M).
  • The results suggest that targeting the MLXIPL pathway could be a potential strategy for treating SLD and related conditions, but further research is required to understand the underlying mechanisms.
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Objective: Alterations in voice intensity and quality may constitute a social life limitation in people with multiple sclerosis (MS), but only 2% of cases receive speech therapy. Especially the Lee Silverman Voice Treatment (LSVT)-Loud is a highly effective intensive method for voice intensity, requiring subjects' repeated attendance at the clinic. Telerehabilitation may represent a feasible solution to bypass potential barriers related to speech therapy attendance, scaling up the beneficial effects of the treatment to a broader population.

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Background And Aims: LCAT esterifies cholesterol in both HDL (α-activity) and apoB-containing lipoproteins (β-activity). The main activator of LCAT β-activity is apoE, which in humans exists in 3 main different isoforms (E2, E3 and E4). Here, to gather insights into the potential role of LCAT in apoB-containing lipoprotein metabolism, we investigated the ability of apoE isoforms to promote LCAT-mediated cholesterol esterification.

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Shigellosis is a leading cause of diarrheal disease in low-middle-income countries (LMICs). Effective vaccines will help to reduce the disease burden, exacerbated by increasing antibiotic resistance, in the most susceptible population represented by young children. A challenge for a broadly protective vaccine against shigellosis is to cover the most epidemiologically relevant serotypes among >50 Shigella serotypes circulating worldwide.

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The ubiquitous occurrence of microplastics (MPs) in the environment and the use of plastics in packaging materials result in the presence of MPs in the food chain and exposure of consumers. Yet, no fully validated analytical method is available for microplastic (MP) quantification, thereby preventing the reliable estimation of the level of exposure and, ultimately, the assessment of the food safety risks associated with MP contamination. In this study, a novel approach is presented that exploits interactive artificial intelligence tools to enable automation of MP analysis.

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Background: Genetic inactivation and pharmacologic inhibition of the microsomal triglyceride transfer protein (MTP; gene name MTTP) inhibits hepatic secretion of VLDL, thereby reducing serum lipids and apoB at the expense of increasing hepatic steatosis.

Aim: To examine the effects of missense variants in MTTP on hepatic and circulating lipids.

Methods: We analysed the association of MTTP missense variants with metabolic, hepatic and clinical phenotypes in the Penn Medicine Biobank (PMBB; n = 37,960) and the UKBiobank (UKB; n = 451,444).

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Background: Plasma triglycerides (TGs) are causally associated with coronary artery disease and acute pancreatitis. Apolipoprotein A-V (apoA-V, gene ) is a liver-secreted protein that is carried on triglyceride-rich lipoproteins and promotes the enzymatic activity of lipoprotein lipase (LPL), thereby reducing TG levels. Little is known about apoA-V structure-function; naturally occurring human variants can provide novel insights.

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Background: Vocal disorders are frequent in people with multiple sclerosis (MS). Cognitive impairment, fatigue, depression, and other clinical characteristics can be associated with treatment effectiveness in rehabilitation. Finding baseline characteristics that identify those who are responding to treatment can help the clinical decision-making process, which can then help improve the effectiveness of voice treatment.

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Despite mass spectrometry (MS) being proven powerful for the characterization of synthetic polymers, its potential for the analysis of single particle microplastics (MPs) is yet to be fully disclosed. To date, MPs are regarded as ubiquitous contaminants, but the limited availability of techniques that enable full characterizations of MPs results in a lack of systematic data regarding their occurrence. In this study, an atmospheric solid analysis probe (ASAP) coupled to a compact quadrupole MS is proposed for the chemical analysis of single particle microplastics, while maintaining full compatibility with complementary staining and image analysis approaches.

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Article Synopsis
  • Genetic LCAT deficiency is a rare inherited condition that leads to two main syndromes: Familial LCAT deficiency (FLD), which includes symptoms like anemia and renal disease, and Fish-eye disease (FED), both associated with low HDL cholesterol and corneal opacity.
  • Currently, there’s no established treatment for FLD, but new therapies like protein and gene replacement, as well as LCAT activators, are in development and showing promising results.
  • To effectively develop these therapies, researchers need to find suitable effectiveness endpoints and biomarkers for disease progression, considering the diverse nature of symptoms in FLD patients, which means treatments will likely need to be customized for each individual.
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Endothelin-1 (ET-1) is a vasoactive and profibrotic peptide that plays a pivotal role in diseases such as systemic sclerosis (SSc) and pulmonary arterial hypertension (PAH), by inducing fibrosis and vascular remodeling. Such effects may be sustained by the induction of aldosterone production and reactive oxygen species (ROS). We have used fibroblasts obtained from skin of healthy donors and SSc patients and commercial fibroblasts from lung to evaluate whether ET-1 is able to stimulate ROS production directly or indirectly through aldosterone induction.

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  • Syndromes linked to LCAT deficiency include fish-eye disease (FED) and more severe familial LCAT deficiency (FLD), which is marked by early chronic kidney disease with no current treatments available.
  • Recent studies reviewed 146 FLD and 53 FED patients, highlighting early corneal opacity and low HDL-C levels as common indicators, with proteinuria and hematuria serving as early signs of renal issues in FLD.
  • The review emphasizes the need for biomarkers to monitor disease progression and suggests that achieving normal LCAT activity could help prevent worsening kidney disease.
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Genetic variants near the TRIB1 gene are highly significantly associated with plasma lipid traits and coronary artery disease. While TRIB1 is likely causal of these associations, the molecular mechanisms are not well understood. Here we sought to investigate how TRIB1 influences low density lipoprotein cholesterol (LDL-C) levels in mice.

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Background: Different Dorsal root entry zone (DREZ) lesion techniques have been reported as effective treatment for intractable painful conditions, though with contradictory results. Overall, good results were reported especially in specific conditions, such as pain due to brachial plexus avulsion, spinal cord injuries and oncological pain management. However, data on long term results in different clinical conditions are still missing.

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