Publications by authors named "Zampieri M"

Aims: This study aimed to evaluate the change of the main electrocardiographic (ECG) characteristics and their prognostic role across the main subtypes of cardiac amyloidosis [light-chain amyloidosis (AL) and hereditary (ATTRv) and wild-type transthyretin amyloidosis (ATTRwt)].

Methods And Results: This multicentre, retrospective study was performed in six referral centres for cardiac amyloidosis. Clinical and ECG data were collected at the first and last evaluations.

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  • * A retrospective analysis was conducted on 811 patients from the DIAMOND study, which included a total of 1281 patients diagnosed in Italy between 2016-2021, focusing on characteristics leading to their diagnosis and calculating their respective scores.
  • * Findings showed that only 1% of patients had early diagnoses, with significant differences in prognostic variable distribution based on diagnostic pathways, and both NAC and Columbia scores were linked to all-cause mortality.
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Objective: The reading level of health educational materials significantly influences the understandability and accessibility of the information, particularly for minoritized populations. Many patient educational resources surpass widely accepted standards for reading level and complexity. There is a critical need for high-performing text simplification models for health information to enhance dissemination and literacy.

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Background: The introduction of a noninvasive diagnostic algorithm in 2016 led to increased awareness and recognition of cardiac amyloidosis (CA).

Objectives: The purpose of this study was to analyze the impact of the introduction of the noninvasive diagnostic algorithm on diagnosis and prognosis in a multicenter Italian CA cohort.

Methods: This was a retrospective analysis of 887 CA patients from 5 Italian Cardiomyopathies Referral Centers: 311 light-chain CA, 87 variant transthyretin (TTR)-related CA, 489 wild-type TTR-related CA.

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Odors help us to interpret the environment, including the nature of social interactions. But, whether and how they influence the ability to discriminate the intentional states embedded in actions is unclear. In two experiments, we asked two independent groups of participants to discriminate motor intentions from videos showing one agent performing a reach-to-grasp movement with another agent with a cooperative or a competitive intent, and the same movement performed alone at either natural- or fast-speed, as controls.

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Autophagosome biogenesis is a complex process orchestrated by dynamic interactions between Atg (autophagy-related) proteins and characterized by the turnover of specific cargoes, which can differ over time and depending on how autophagy is stimulated. Proteomic analyses are central to uncover protein-protein interaction networks and when combined with proximity-dependent biotinylation or proximity labeling (PL) approaches, they also permit to detect transient and weak interactions. However, current PL procedures for yeast , one of the leading models for the study of autophagy, do not allow to keep temporal specificity and thus identify interactions and cargoes at a precise time point upon autophagy induction.

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Background: Type 2 diabetes mellitus (T2DM) is characterized by disrupted glucose homeostasis and metabolic abnormalities, with oxidative stress and inflammation playing pivotal roles in its pathophysiology. Poly(ADP-ribosyl)ation (PARylation) is a post-translational process involving the addition of ADP-ribose polymers (PAR) to target proteins. While preclinical studies have implicated PARylation in the interplay between oxidative stress and inflammation in T2DM, direct clinical evidence in humans remains limited.

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  • The study aimed to explore the prevalence of transthyretin amyloidosis variant cardiomyopathy (ATTRv-CM) among relatives at risk, assess the effectiveness of repeated evaluations, and analyze first-line diagnostic methods like ECG and echocardiogram.
  • Among 159 relatives evaluated, 25% were diagnosed with ATTRv-CM, and half of those diagnosed exhibited heart failure symptoms, showcasing a high negative predictive value for screening based on specific criteria.
  • The findings emphasize the need for ongoing monitoring, as 13% of patients with ATTRv-CM showed no initial cardiac signs, suggesting regular follow-up testing is crucial for early detection and management.
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  • This study analyzed the effectiveness and tolerability of SGLT2 inhibitors in patients with transthyretin cardiomyopathy (ATTR-CM), a condition previously excluded from related clinical trials.
  • Out of 2,356 ATTR-CM patients, 260 received SGLT2 inhibitors, and after matching for certain variables, it was found that SGLT2i treatment led to less deterioration in heart failure symptoms and better kidney function over time.
  • The findings suggest that SGLT2i treatment not only had a low discontinuation rate but also significantly reduced the risks of all-cause mortality, cardiovascular mortality, and heart failure hospitalizations in these patients.
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Despite the considerable potential offered by lithium metal's high capacity for rechargeable batteries, challenges such as dendrite formation and safety concerns persist. As strategies continue to advance in dendrite management, the demand for efficient monitoring tools becomes increasingly pronounced. In this study, we delve into the characterization of dendrites, elucidating the influence of microstructure morphology on the NMR spectrum using a combination of simulations and experiments.

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  • Amyloidosis is a disease where misfolded proteins build up and hurt the heart, making it hard for it to work properly.
  • Heart failure is a common problem for people with this disease and is often how they find out they have it.
  • This study focuses on how to better manage patients who have both heart failure and cardiac amyloidosis to help them feel better.
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  • - The study explores the relationship between frailty and health status in older patients with transthyretin cardiac amyloidosis (ATTR-CA), utilizing the Kansas City Cardiomyopathy Questionnaire (KCCQ) for health assessment.
  • - Out of 168 patients screened, 138 were enrolled, revealing that 14.5% were frail and the median health status score was 66.
  • - Results indicated that factors like age and frailty level significantly impacted health status, suggesting future research could further clarify how frailty affects quality of life and prognosis in these patients.
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  • Transthyretin cardiac amyloidosis (ATTR-CA) is a serious heart condition that can progress at different rates among patients, making it hard to track disease advancement.
  • This study analyzed the significance of rising levels of NT-proBNP and increased need for diuretics as predictors of worsening heart function over one year in a large sample of ATTR-CA patients.
  • Results showed that increases in NT-proBNP and diuretic use were both strongly linked to increased mortality risk, highlighting the importance of these markers for monitoring patients' health outcomes.
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  • This study investigates the relationship between myocardial bone tracer uptake in patients with transthyretin amyloid cardiomyopathy (ATTR-CM) and outcomes like all-cause mortality.
  • It involves 1,422 patients who underwent imaging to classify cardiac uptake levels and assess right ventricular (RV) uptake patterns, finding that diffuse RV uptake correlates with higher mortality rates.
  • Multivariable analysis identified several factors, including age and specific genetic variants, that also impact survival outcomes in these patients.
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Heat stress negatively affects health, welfare, and livestock productivity by impairing immune function, increasing disease incidence. In recent years, there has been increasing interest in understanding the immune system of water buffalo due to the growing economic impact of this species for the high quality and nutritional value of buffalo milk. While there are common responses across bovine and buffalo species, there are also some species-specific variations in the physiological responses to heat stress, mainly attributed to differences in metabolism and heat dissipation efficiency.

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Background: A minority of patients with hypertrophic cardiomyopathy (HCM) presents advanced heart failure (HF) during their clinical course, in the context of left ventricular (LV) remodeling with reduced LV ejection fraction (LVEF), or of severe diastolic dysfunction without impaired LVEF. Aim of this study was to describe a multicentric end stage (ES) HCM population and analyze clinical course and outcome among its different phenotypes.

Methods: Data of all HCM patients from 7 Italian referral centres were retrospectively evaluated.

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Objective: To describe the potential clinical cardiotoxicity of oncological treatments in a cohort of consecutive patients with hypertrophic cardiomyopathy (HCM), systematically followed-up at two national referral centers for HCM. Cardiotoxicity relates to the direct effects of cancer-related treatment on heart function, commonly presenting as left ventricular contractile dysfunction. However, limited data are available regarding cardiotoxic effects on HCM as most studies have not specifically analyzed the effects of oncological treatment in HCM populations.

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Background: Cardiac involvement is reported in a significant proportion of patients with classical organic acidurias (OAs), contributing to disability and premature death. Different cardiac phenotypes have been described, among which dilated cardiomyopathy (DCM) is predominant. Despite recent progress in diagnosis and treatment, the natural history of patients with OAs remains unresolved, specifically with regard to the impact of cardiac complications.

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Restrictive cardiomyopathy (RCM) is characterized by restrictive ventricular pathophysiology determined by increased myocardial stiffness. While suspicion of RCM is initially raised by clinical evaluation and supported by electrocardiographic and echocardiographic findings, invasive hemodynamic evaluation is often required for diagnosis and management of patients during follow-up. RCM is commonly associated with a poor prognosis and a high incidence of heart failure, and PH is reported in paediatric patients with RCM.

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We discover sizable differences between the lexical complexity assignments of first language (L1) and second language (L2) English speakers. The complexity assignments of 940 shared tokens without context were extracted and compared from three lexical complexity prediction (LCP) datasets: the CompLex dataset, the Word Complexity Lexicon, and the CERF-J wordlist. It was found that word frequency, length, syllable count, familiarity, and prevalence as well as a number of derivations had a greater effect on perceived lexical complexity for L2 English speakers than they did for L1 English speakers.

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Diffuse large B-cell lymphoma (DLBCL) is the most common lymphoma in adults, but first-line immunochemotherapy fails to produce a durable response in about one-third of the patients. Because tumor cells often reprogram their metabolism, we investigated the importance of glutaminolysis, a pathway converting glutamine to generate energy and various metabolites, for the growth of DLBCL cells. Glutaminase-1 (GLS1) expression was robustly detected in DLBCL biopsy samples and cell lines.

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The control of non-coding repeated DNA by DNA methylation plays an important role in genomic stability, contributing to health and healthy aging. Mind-body practices can elicit psychophysical wellbeing via epigenetic mechanisms, including DNA methylation. However, in this context the effects of movement meditations have rarely been examined.

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Background: Transthyretin amyloid cardiomyopathy (ATTR-CM) is associated with a progressive reduction of functional capacity. The progression of cardiopulmonary exercise testing (CPET) parameters over time is still unknown.

Methods: In this study, 55 patients with ATTR-CM underwent 2 serial cardiologic evaluations and CPETs in a national referral center for cardiac amyloidosis (Careggi University Hospital, Florence).

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