Publications by authors named "Levine T"

Introduction: Small-fiber neuropathy (SFN) is highly prevalent but often idiopathic. TS-HDS, FGFR-3, and Plexin D1 autoantibodies (seropositive) may be present in more than 40% of idiopathic cases. Another autoimmune biomarker is a non-length-dependent (NLD) skin biopsy pattern.

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Chronic inflammatory demyelinating polyneuropathy (CIDP) is an immune mediated demyelinating neuropathy that can lead to secondary axonal degeneration and irreversible weakness and disability. Early effective treatment is therefore necessary to minimize the degree of axonal degeneration. Prior to 2024 the only FDA approved therapy for CIDP was intravenous immunoglobulin (IVIg).

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Introduction: Amyotrophic lateral sclerosis (ALS) is a rapidly progressive neurodegenerative disease with no known cure, limited treatment options with minimal benefits, and significant unmet need for disease modifying therapies.

Aims: This study investigated memantine's impact on ALS progression, with an additional focus on the effects of memantine on cognitive and behavioral changes associated with the disease.

Methods: A randomized, double-blind, placebo-controlled clinical trial was conducted from December 2018 to September 2020.

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Article Synopsis
  • The study aimed to assess the safety and effectiveness of caprylate/chromatography-purified intravenous immunoglobulin (IGIV-C) in patients with generalized myasthenia gravis (MG) compared to a placebo.
  • A total of 62 patients participated in a randomized trial, where IGIV-C showed a numerical improvement in certain outcomes like activities of daily living, although most primary and secondary outcomes did not reach statistical significance.
  • While IGIV-C was generally well-tolerated, the small size of the study suggests the need for further research to better understand its potential as a maintenance therapy for MG.
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The Covid-19 pandemic challenged health care delivery systems worldwide. Many acute care hospitals in communities that experienced surges in cases and hospitalizations had to make decisions such as rationing scarce resources. Hospitals serving low-income communities, communities of color, and those in other historically marginalized or vulnerable groups reported the greatest operational impacts of surges.

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  • Hypertension is a significant risk factor for dementia, and the study aims to determine if poorly managed hypertension increases dementia risk in individuals with HIV.
  • The researchers analyzed data from over 69,000 participants (including nearly 3,100 with HIV), evaluating their blood pressure control against dementia risk over several years using a disease management index (DMI).
  • Results indicated that inadequate control of both systolic and diastolic blood pressure was linked to a higher risk of developing dementia, regardless of HIV status, with diastolic pressure control showing particularly strong associations.
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Imbalances in lipid storage and secretion lead to the accumulation of hepatocyte lipid droplets (LDs) (i.e., hepatic steatosis).

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Objective: Despite recognition that people with HIV (PWH) are more vulnerable to sleep issues, there is limited understanding of clinically recognized sleep disorders in this population. Our objective was to evaluate the full spectrum of sleep disorder types diagnosed among PWH in care.

Methods: We conducted a retrospective cohort study of PWH, and a comparator group of people without HIV (PWoH), in a large healthcare system.

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Background: While cannabis use is prevalent among people with HIV (PWH), factors associated with higher-risk use require further study. We examined factors associated with indicators risk for cannabis use disorder (CUD) among PWH who used cannabis.

Methods: Participants included adult (≥18 years old) PWH from 3 HIV primary care clinics in Kaiser Permanente Northern California who reported past three-month cannabis use through the computerized Tobacco, Alcohol, Prescription medication, and other Substance use (TAPS) screening.

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One means by which cells reutilize neutral lipids stored in lipid droplets is to degrade them by autophagy. This process involves spartin, mutations of which cause the rare inherited disorder Troyer syndrome (or spastic paraplegia-20, SPG20). A recently published paper from the team led by Karin Reinsich (Yale) suggests that the molecular function of spartin and its unique highly conserved "senescence" domain is as a lipid transfer protein.

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Speech impediments are a prominent yet understudied symptom of Parkinson's disease (PD). While the subthalamic nucleus (STN) is an established clinical target for treating motor symptoms, these interventions can lead to further worsening of speech. The interplay between dopaminergic medication, STN circuitry, and their downstream effects on speech in PD is not yet fully understood.

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  • Rozanolixizumab, a neonatal Fc receptor inhibitor, was tested for managing chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) in a phase 2a study, where patients received either the drug or a placebo.
  • The study involved 34 participants who were assessed for changes in disability scores over 85 days, but results indicated no significant difference in efficacy between the drug and placebo.
  • Despite the lack of efficacy, rozanolixizumab was generally well tolerated with an acceptable safety profile, and most patients experienced treatment-emergent adverse events similar to the placebo group.
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Importance: Finding a reliable diagnostic biomarker for the disorders collectively known as synucleinopathies (Parkinson disease [PD], dementia with Lewy bodies [DLB], multiple system atrophy [MSA], and pure autonomic failure [PAF]) is an urgent unmet need. Immunohistochemical detection of cutaneous phosphorylated α-synuclein may be a sensitive and specific clinical test for the diagnosis of synucleinopathies.

Objective: To evaluate the positivity rate of cutaneous α-synuclein deposition in patients with PD, DLB, MSA, and PAF.

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Lipid droplets (LDs) are fat storage organelles critical for energy and lipid metabolism. Upon nutrient exhaustion, cells consume LDs via gradual lipolysis or via lipophagy, the en bloc uptake of LDs into the vacuole. Here, we show that LDs dock to the vacuolar membrane via a contact site that is required for lipophagy in yeast.

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  • Dermatomyositis is an inflammatory muscle disease characterized by rashes and muscle weakness, with recent research (ProDERM study) focused on the effectiveness of intravenous immunoglobulin (IVIg) as treatment.
  • This study involved 95 adult patients, comparing the effects of IVIg to a placebo over 16 weeks, followed by an extension period where all patients received IVIg.
  • Findings indicated that while some patients experienced treatment-related adverse events (TEAEs), IVIg showed a generally favorable safety profile, with adjustments in dosage reducing certain risks without causing severe complications.
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Background: Management of hypertension, dyslipidemia, diabetes and other modifiable factors may mitigate the cardiovascular disease (CVD) risk in people with human immunodeficiency virus (HIV, PWH) compared with people without HIV (PWoH).

Methods: This was a retrospective cohort study of 8285 PWH and 170 517 PWoH from an integrated health system. Risk factor control was measured using a novel disease management index (DMI) accounting for amount/duration above treatment goals (0% to 100% [perfect control]), including 2 DMIs for hypertension (diastolic and systolic blood pressure), 3 for dyslipidemia (low-density lipoprotein, total cholesterol, triglycerides), and 1 for diabetes (HbA1c).

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Objectives: To assess the safety, tolerability, and key pharmacodynamic effects of subcutaneous batoclimab, a fully human anti-neonatal Fc receptor monoclonal antibody, in patients with generalized myasthenia gravis and anti-acetylcholine receptor antibodies.

Methods: A Phase 2a, proof-of-concept, randomized, double-blind, placebo-controlled trial is described. Eligible patients were randomized (1:1:1) to receive once-weekly subcutaneous injections of batoclimab 340 mg, batoclimab 680 mg, or matching placebo for 6 weeks.

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Objective: Subtle changes in memory, attention, and spatial navigation abilities have been associated with preclinical Alzheimer disease (AD). The current study examined whether baseline AD biomarkers are associated with self- and informant-reported decline in memory, attention, and spatial navigation.

Method: Clinically normal (Clinical Dementia Rating Scale (CDR®) = 0) adults aged 56-93 ( = 320) and their informants completed the memory, divided attention, and visuospatial abilities (which assesses spatial navigation) subsections of the Everyday Cognition Scale (ECog) annually for an average of 4 years.

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Background: Dermatomyositis (DM) is a rare autoimmune disease characterized by skin involvement, with or without proximal muscle weakness. Recently, following the ProDERM study, intravenous immunoglobulin (IVIg) was approved for treatment of DM. Until ProDERM evidence from large, placebo-controlled studies supporting its use for dermatological symptoms, was lacking.

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  • Inclusion body myositis is a common muscle-wasting disease in people over 50, and no effective drug treatment currently exists, prompting research into the oral drug arimoclomol.
  • A double-blind, placebo-controlled study was conducted on 152 adults in specialist centers across the USA and the UK, randomly assigning them to receive either arimoclomol or a placebo for 20 months.
  • The primary goal was to measure changes in muscle function using the Inclusion Body Myositis Functional Rating Scale, with safety evaluations including all participants who received at least one dose of the medication.
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Acquired angioedema (AAE) is a rare disease with life-threatening complications. This pathology has classically been associated with medication use and B cell lymphoproliferative disorders. In this report, we describe a 61-year-old man with a six-year history of angioedema, unrelated to any known triggers or malignancy.

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Objective: Preclinical Alzheimer disease (AD) has been associated with subtle changes in memory, attention, and spatial navigation abilities. The current study examined whether self- and informant-reported domain-specific cognitive changes are sensitive to AD-associated biomarkers.

Method: Clinically normal adults aged 56-93 and their informants completed the memory, divided attention, and visuospatial abilities (which assesses spatial navigation) subsections of the Everyday Cognition Scale (ECog).

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