Publications by authors named "Loris Poli"

Background: SELENON-related myopathy is a rare autosomal recessive congenital neuromuscular disorder linked to defects in the selenoprotein N. The clinical onset typically occurs in infancy and axial weakness, rigid spine, and respiratory involvement are almost invariably present at early stages.

Case Presentation: We report the case of a 44-year-old Italian woman who underwent intubation for acute respiratory failure, followed by weaning from invasive ventilation within 6 months.

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Background: Hereditary amyloid transthyretin amyloidosis with polyneuropathy (ATTRv-PN) is a rare, inherited, multisystemic, progressive adult-onset disease, affecting sensorimotor nerves, and various organs. It is caused by mutations in the TTR gene, leading to misfolded monomers that aggregate, forming amyloid fibrils. Patisiran is a small, double-stranded interfering RNA encapsulated in a lipid nanoparticle, designed to enter hepatocytes and selectively target TTR mRNA to reduce both variant TTR and wild-type TTR (wt).

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  • The revised El Escorial (rEEC) and Awaji criteria for diagnosing amyotrophic lateral sclerosis (ALS) are complex and show high variability in clinical practice, prompting the introduction of the Gold Coast criteria (GCC) in 2019, which simplifies the diagnosis to either ALS or not ALS.
  • A study evaluating 131 ALS patients and 104 control subjects found that the sensitivity of the GCC was significantly higher (over 93%) compared to rEEC and Awaji criteria, suggesting that GCC reduces the risk of false negatives.
  • While GCC has lower specificity (28.8%) than the other criteria, it may allow for quicker diagnosis and patient management, potentially benefiting clinical trial recruitment by facilitating faster enrollment.
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Amyloidoses represent a group of diseases characterized by the pathological accumulation in the extracellular area of insoluble misfolded protein material called "amyloid". The damage to the tissue organization and the direct toxicity of the amyloidogenic substrates induce progressive dysfunctions in the organs involved. They are usually multisystem diseases involving several vital organs, such as the peripheral nerves, heart, kidneys, gastrointestinal tract, liver, skin, and eyes.

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The extent of nerve involvement in leprosy is highly variable in distribution and clinical presentation. Mononeuropathies, multiple mononeuropathies, and polyneuropathies can present both in the context of a cutaneous and/or systemic picture and in the form of pure neuritic leprosy (PNL). The differential diagnosis of leprosy neuropathy remains challenging because it is a very rare condition and, especially in Western countries, is often overlooked.

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Pompe disease (PD) is an autosomal recessive disorder caused by mutations in the gene that lead to a deficiency in the acid alpha-glucosidase enzyme. Two clinical presentations are usually considered, named infantile-onset Pompe disease (IOPD) and late-onset Pompe disease (LOPD), which differ in age of onset, organ involvement, and severity of disease. Assessment of acid alpha-glucosidase activity on a dried blood spot is the first-line screening test, which needs to be confirmed by genetic analysis in case of suspected deficiency.

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Very long-chain acyl-CoA dehydrogenase (VLCAD) deficiency is a rare autosomal recessive long-chain fatty acid oxidation disorder caused by mutations in the gene. The myopathic form presents with exercise intolerance, exercise-related rhabdomyolysis, and muscle pain, usually starting during adolescence or adulthood. We report on a 17-year-old boy who has presented with exercise-induced muscle pain and fatigue since childhood.

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Unlabelled: The MUNIX technique allows us to estimate the number and size of surviving motor units (MUs). Previous studies on ALS found correlations between MUNIX and several clinical measures, but its potential role as a predictor of disease progression rate (DPR) has not been thoroughly evaluated to date. We aimed to investigate MUNIX's ability to predict DPR at a six-month follow up.

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The development of chimeric antigen receptor (CAR)-T cell therapy has revolutionized the treatment of hematological diseases. However, approximately 60% of patients relapse after CAR-T cell therapy, and no clear cause for this failure has been identified. The objective of the Bio-CAR-T BS study (ClinicalTrials.

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Background And Objectives: Amyloid-related imaging abnormalities suggestive of vasogenic edema or sulcal effusion (ARIA-E) are the most common adverse events complicating Alzheimer disease (AD) immunotherapy with anti-β-amyloid (Aβ) monoclonal antibodies. ARIA-E can also occur spontaneously in cerebral amyloid angiopathy-related inflammation (CAA-ri), a rare autoimmune encephalopathy associated with increased CSF levels of anti-Aβ autoantibodies. Although the pathophysiologic mechanisms of ARIA-E remain to be fully elucidated, experimental evidence from ex vivo studies suggests that gantenerumab and aducanumab enable microglial activation.

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  • * GBS cases from March 2020 to March 2021 showed a 59% increase compared to the previous year, with approximately 50% of GBS patients testing positive for COVID-19.
  • * The study concluded that GBS incidence rose during the pandemic, indicating a significant association between GBS and COVID-19, as non-COVID-19 GBS cases decreased during the same period.
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Hereditary transthyretin amyloidosis (ATTRv) is a multisystemic, rare, inherited, progressive and adult-onset disease, affecting the sensorimotor nerves, heart, autonomic function and other organs. The actual scenario of pharmaceutical approaches for ATTRv amyloidosis includes five main groups: TTR stabilizers, TTR mRNA silencers, TTR fibril disruptors, inhibitor of TTR fibril seeding and gene therapy. Patisiran is a small, double-stranded interfering RNA encapsulated in a lipid nanoparticle, able to penetrate into hepatocytes, where it selectively targets TTR mRNA, reducing TTR production.

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  • Hematoma expansion (HE) is prevalent in patients with intracerebral hemorrhage (ICH) who have unclear symptom onset, potentially leading to worse outcomes.
  • A study analyzed the relationship between certain markers observed in non-contrast computed tomography (NCCT) scans and the likelihood of HE in 646 ICH patients, with key findings indicating that markers like hypodensities, heterogeneous density, blend sign, and irregular shape are significantly linked to higher HE risk.
  • The research suggests that these NCCT markers could assist in stratifying the risk of HE in future studies of patients who present with unclear symptom onset, but further prospective research is needed to confirm these results.
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Purpose: Intracerebral hemorrhage (ICH) is an uncommon but deadly event in patients with COVID-19 and its imaging features remain poorly characterized. We aimed to describe the clinical and imaging features of COVID-19-associated ICH.

Methods: Multicenter, retrospective, case-control analysis comparing ICH in COVID-19 patients (COV19 +) versus controls without COVID-19 (COV19 -).

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Objective: To investigate the prevalence, predictors, and prognostic effect of hematoma expansion (HE) in patients with intracerebral hemorrhage (ICH) with unclear symptom onset (USO).

Methods: We performed a retrospective analysis of patients with primary spontaneous ICH admitted at 5 academic medical centers in the United States and Italy. HE (volume increase >6 mL or >33% from baseline to follow-up noncontrast CT [NCCT]) and mortality at 30 days were the outcomes of interest.

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  • The study aimed to evaluate the risks of recurrent ischemic events and severe bleeding in patients with acute posterior ischemic stroke (PS) and atrial fibrillation (AF) in relation to oral anticoagulant therapy (OAT) and timing of initiation.
  • Researchers compared outcomes in 473 patients with PS to 1997 patients with anterior stroke (AS), focusing on events within 90 days of the initial stroke.
  • Findings indicated that both PS and AS patients had similar risks of ischemic or hemorrhagic events at 90 days, regardless of when OAT was initiated.
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Objective: Single cases and small series of Guillain-Barré syndrome (GBS) have been reported during the SARS-CoV-2 outbreak worldwide. We evaluated incidence and clinical features of GBS in a cohort of patients from two regions of northern Italy with the highest number of patients with COVID-19.

Methods: GBS cases diagnosed in 12 referral hospitals from Lombardy and Veneto in March and April 2020 were retrospectively collected.

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  • The study investigates when it's best to start oral anticoagulants after an ischemic stroke caused by atrial fibrillation, particularly focusing on patients who received thrombolysis or thrombectomy.
  • It combines data from two studies conducted between 2012 and 2016, analyzing patients treated with either Vitamin K antagonists or non-vitamin K oral anticoagulants for secondary stroke prevention.
  • Among 2159 patients included, the timing for starting anticoagulants was similar for those treated with reperfusion therapies and those not treated, with low rates of stroke or bleeding complications observed within 90 days.
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Objective: To report clinical and laboratory characteristics, treatment, and clinical outcomes of patients admitted for neurologic diseases with and without coronavirus disease 2019 (COVID-19).

Methods: In this retrospective, single-center cohort study, we included all adult inpatients with confirmed COVID-19 admitted to a neuro-COVID unit beginning February 21, 2020, who had been discharged or died by April 5, 2020. Demographic, clinical, treatment, and laboratory data were extracted from medical records and compared (false discovery rate corrected) to those of neurologic patients without COVID-19 admitted in the same period.

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Background and Purpose- We investigated whether subarachnoid extension (SAHE) of intracerebral hemorrhage (ICH) is associated with hematoma expansion (HE). Methods- Retrospective analysis of patients with primary spontaneous ICH admitted at 3 academic hospitals in Italy. The study population was divided into a development and a replication cohort.

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  • Migraine may increase the size of cerebral infarcts (areas of dead tissue due to lack of blood flow) in humans, similar to findings in animal studies.
  • In a study of 591 patients with acute ischemic stroke, those with migraines had significantly larger infarct volumes compared to non-migraine sufferers, especially those with migraine with aura.
  • The results suggest that migraine could make individuals more susceptible to severe brain injury during ischemic events, indicating a need for further research in this area.
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Background And Purpose: The BAT, BRAIN, and HEP scores have been proposed to predict hematoma expansion (HE) with noncontrast computed tomography (NCCT). We sought to validate these tools and compare their diagnostic performance.

Methods: We retrospectively analyzed two cohorts of patients with primary intracerebral hemorrhage.

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