Publications by authors named "Leu C"

Introduction: The (IDEAL) Study is a randomized clinical trial investigating the psychosocial, behavioral, and cognitive impacts of apolipoprotein E () genotype disclosure for late-onset Alzheimer's disease (AD) among Latinos.

Methods: We used address-based sampling to recruit English- and Spanish-speaking Latinos aged 40-64 living in northern Manhattan for a community-based Baseline Survey about their knowledge and opinions about AD. Participants eligible for the clinical trial were invited to complete an Introductory Session, including AD and genetics education and informed consent, before undergoing genotyping for .

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Lesional focal epilepsy (LFE) is a common and severe seizure disorder caused by epileptogenic lesions, including malformations of cortical development (MCD) and low-grade epilepsy-associated tumors (LEAT). Understanding the genetic etiology of these lesions can inform medical and surgical treatment. We conducted a somatic variant enrichment mega-analysis in brain tissue from 1386 individuals who underwent epilepsy surgery, including 599 previously unpublished individuals with ultra-deep ( > 1600x) targeted panel sequencing.

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Background: High treatment burden can adversely impact health outcomes in people with cystic fibrosis (PwCF). There is a continued need for medication adherence education and further research to evaluate impact of CF pharmacist interventions in an ambulatory care setting.

Objective(s): To evaluate whether pharmacist integration into an outpatient adult CF clinic can positively impact patient satisfaction and medication adherence through various pharmacist-based interventions.

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  • The study explores how copy number variations (CNVs) affect the development of Parkinson's disease (PD), aiming to identify new genetic mechanisms linked to sporadic cases of the disease.
  • Utilizing data from over 11,000 PD patients and nearly 9,000 controls, the researchers discovered 14 significant CNV loci associated with PD, including various gene duplications and deletions.
  • The research highlights a higher prevalence of CNVs in specific PD-related genes among patients and suggests that certain CNVs, especially those involving the gene, may lead to earlier onset of the disease in early-onset PD cases.
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A promising stream of investigations is targeting ongoing neural oscillations and whether their modulation could be related to the perception of pain. Using an electroencephalography (EEG) frequency-tagging approach, sustained periodic thermonociceptive stimuli perceived as painful have been shown to modulate ongoing oscillations in the theta, alpha and beta bands at the frequency of stimulation. Nonetheless, it remains uncertain whether these modulations are indeed linked to pain perception.

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Background: Gut colonization with multidrug-resistant organisms (MDRO) frequently precedes infection among patients in the intensive care unit (ICU), although the dynamics of colonization are not completely understood. We performed a systematic review and meta-analysis of ICU studies which described the cumulative incidence and rates of MDRO gut acquisition.

Methods: We systematically searched PubMed, Embase, and Web of Science for studies published from 2010 to 2023 reporting on gut acquisition of MDRO in the ICU.

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Objectives: To evaluate parent knowledge and belief changes following the MySmileBuddy (MSB) early childhood caries (ECC) intervention.

Methods: Pre- and post-intervention surveys were completed by 669 parents of children with visually-evident ECC from among 977 participants in a 6-12-month pragmatic community-based caries management trial administered by community health workers (CHWs). Six domains of knowledge about caries and motivating and facilitating determinants were assessed via 26 survey items.

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Background: Mutations in encoding nuclear envelope proteins lamin A/C cause dilated cardiomyopathy. Activation of the AKT/mTOR (RAC-α serine/threonine-protein kinase/mammalian target of rapamycin) pathway is implicated as a potential pathophysiologic mechanism. The aim of this study was to assess whether pharmacological inhibition of mTOR signaling has beneficial effects on heart function and prolongs survival in a mouse model of the disease, after onset of heart failure.

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  • * Researchers conducted a large-scale study involving both genetic and non-genetic epilepsy cases from childhood to adolescence, using natural language processing to extract data from electronic health records.
  • * Findings revealed that individuals with genetic epilepsy were diagnosed earlier and had more complex healthcare interactions, especially during the transition from pediatric to adult care, highlighting the need for tailored approaches in their management.
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Objective: Demographic and disease factors are associated with cognitive deficits and postoperative cognitive declines in adults with pharmacoresistant temporal lobe epilepsy (TLE), but the role of genetic factors in cognition in TLE is not well understood. Polygenic scores (PGS) for neurological and neuropsychiatric disorders and IQ have been associated with cognition in patient and healthy populations. In this exploratory study, we examined the relationship between PGS for Alzheimer's disease (AD), depression, and IQ and cognitive outcomes in adults with TLE.

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There is evidence that humans can survive a direct lightning strike to the head. Our question is: could water (rain) on the skin contribute to an increase in the survival rate? We measure the influence of rain during high-energy direct lightning strikes on a realistic three-compartment human head phantom. We find a lower number of perforations and eroded areas near the lightning strike impact points on the head phantom when rain was applied compared to no rain.

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Restless legs syndrome (RLS) is a neurological disorder characterized by uncomfortable or unpleasant sensations in the legs during rest periods. To relieve these sensations, patients move their legs, causing sleep disruption. While the pathogenesis of RLS has yet to be resolved, there is a strong genetic association with the MEIS1 gene.

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  • The study aimed to compare the behavior of lung nodules in areas of pulmonary fibrosis versus non-fibrotic lung tissue by reviewing CT scans and patient records of 4,500 individuals.
  • Findings revealed that nodules in fibrotic areas were significantly more likely to be cancerous (34%) compared to those in non-fibrotic areas (15%).
  • Additionally, smaller nodules (1 to 6 mm) in fibrotic tissue showed a higher cancer rate (10.2%) compared to non-fibrotic tissue (0.8%), indicating that fibrotic lung tissue may present a greater risk for malignant nodules.*
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Hepatocellular carcinoma (HCC) is a leading cause of death worldwide. Current therapies are effective for HCC patients with early disease, but many patients suffer recurrence after surgery and have a poor response to chemotherapy. Therefore, new therapeutic targets are needed.

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  • EEM is a generalized epilepsy marked by eyelid myoclonia and other symptoms, showing a potential genetic link which is under investigation.
  • A study involved 105 individuals with EEM, using whole exome sequencing to analyze genetic variants between two groups: those with isolated EEM (EEM-) and those with additional intellectual disabilities or psychiatric disorders (EEM+).
  • Findings revealed that pathogenic variants were predominantly in the CHD2 gene for the EEM+ group, suggesting a stronger genetic association with this subtype, while evidence for a connection in the EEM- group remains inconclusive.
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Background: Chemotherapy-induced peripheral neuropathy (CIPN) is a common and debilitating adverse effect of taxane therapy. Small non-randomized studies in patients with early-stage breast cancer (ESBC) suggest both cryotherapy and compression therapy may prevent CIPN. It is unknown which is more effective.

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Focal cortical dysplasia type II (FCDII) is the most common cause of drug-resistant focal epilepsy in children. Herein, we performed a deep histopathology-based genotype-phenotype analysis to further elucidate the clinico-pathological and genetic presentation of FCDIIa compared to FCDIIb. Seventeen individuals with histopathologically confirmed diagnosis of FCD ILAE Type II and a pathogenic variant detected in brain derived DNA whole-exome sequencing or mTOR gene panel sequencing were included in this study.

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  • - The approach to treating B cell malignancies has significantly changed due to immunotherapy targeting surface proteins and inhibiting crucial signaling pathways, highlighting the importance of B cell receptor signaling in these cancers.
  • - FCRL1, a member of the Fc receptor-like gene family, is mainly found on naïve and memory B cells, and it plays a critical role in B cell signaling and immune responses by aiding in the formation of the B cell receptor signalosome.
  • - Recent research suggests that FCRL1 is often over-expressed in mature B cell leukemias and lymphomas, making it a valuable biomarker and a potential therapeutic target worth investigating further.
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Sustained nociceptive stimuli have been shown to modulate the amplitude of ongoing neural oscillations in the theta, alpha and beta frequency bands at the frequency of stimulation, suggesting a relationship between these ongoing oscillations and pain perception. Yet, whether these ongoing oscillations are actually related to the pain experience remains unclear. If it were the case, then cognitive processes that are known to affect pain intensity should also affect these ongoing oscillations.

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  • Carriers of specific genetic variants (1q21.1 distal and 15q11.2 BP1-BP2) show both regional and global brain structure differences compared to noncarriers, but analyzing these differences can be complicated.
  • The study used MRI data from various groups (carriers and noncarriers) to assess how regional brain characteristics diverge from overall brain structure differences.
  • Findings revealed that certain brain regions in carriers exhibited distinct patterns of cortical surface area and thickness that deviated from the global average, suggesting more complex effects of these genetic variants on brain development.
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Objectives: To evaluate a preventative behavioral intervention for managing early childhood caries (ECC) in a cohort of high-risk children.

Methods: This pragmatic trial of the MySmileBuddy Program (MSB) evaluated preventive behavioral outcomes in a 1-y community health worker-delivered intervention to prevent ECC progression. Pre-/postintervention surveys assessed parent-reported child engagement in therapeutic toothbrushing (i.

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  • Copy number variants (CNVs) are linked to neurodevelopmental disorders, particularly those involving seizures or epilepsy, prompting researchers to analyze genetic data from large groups of individuals with seizure disorders and epilepsy.
  • The study identified 25 significant genetic loci associated with seizures, of which 22 are newly discovered, including various deletions and duplications at specific chromosomal locations.
  • Further analysis showed connections between these loci and a range of neuropsychiatric conditions, offering insights into the clinical implications of these variants for epilepsy diagnosis and treatment.
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  • - The study aimed to investigate epilepsy genetic knowledge and beliefs among Hispanics in comparison to non-Hispanics, given that Hispanics face healthcare access challenges, especially in epilepsy care.
  • - Researchers surveyed 641 adults with epilepsy, revealing that while general beliefs about genetics were similar between the two groups, Hispanics scored lower in epilepsy-specific genetic knowledge.
  • - The findings highlight a need for improved education on epilepsy genetics within Hispanic communities to better understand risks and family history related to the condition.
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