Clinical Manifestations.

Background: The impact of knowledge of β-amyloid status on cognitively unimpaired persons' cognitive test performance is unknown.

Method: Cognitively unimpaired adults aged 65-80 with a first-degree relative with AD received a dementia risk estimate and were randomly assigned to disclosure (D+) or non-disclosure (D-) of their β-amyloid PET scan result. At 6 weeks and 6 months post-disclosure, participants completed the ADCS-PACC, a composite of Free and Cued Selective Reminding (free portion), Logical Memory IIa test, Digit-Symbol Substitution, and MMSE.

Clinical Manifestations.

Background: There is considerable variability in the rate of clinical progression among individuals with frontotemporal dementia (FTD) and prognostic markers are lacking. Moreover, due to the rarity of postmortem data, the relationship between rate of progression and postmortem tau and TDP-43 proteinopathy is understudied.

Method: To explore the pathologic underpinnings of differences in clinical progression of FTD, we used clinical data collected by the Penn Center for Neurodegenerative Disease Research from 130 patients with autopsy-confirmed frontotemporal lobar degeneration (FTLD-tau = 62, FTLD-TDP = 68) across six domains (age at onset, survival in years, first Clinical Dementia Rating [CDR] scale score, first Mini-Mental State Examination [MMSE] score, annual change in CDR, annual change in MMSE).

Splitting of the Girvin-MacDonald-Platzman Density Wave and the Nature of Chiral Gravitons in the Fractional Quantum Hall Effect.

A fundamental manifestation of the nontrivial correlations of an incompressible fractional quantum Hall (FQH) state is that an electron added to it disintegrates into more elementary particles, namely fractionally-charged composite fermions (CFs). We show here that the Girvin-MacDonald-Platzman (GMP) density-wave excitation of the ν=n/(2pn±1) FQH states also splits into more elementary single CF excitons. In particular, the GMP graviton, which refers to the recently observed spin-2 neutral excitation in the vanishing wave vector limit [Liang et al.

R(3780) Resonance Interpreted as the 1^{3}D_{1}-Wave Dominant State of Charmonium from Precise Measurements of the Cross Section of e^{+}e^{-}→Hadrons.

We report the precise measurements of the cross section of e^{+}e^{-}→hadrons at center-of-mass energies from 3.645 to 3.871 GeV.

Clinical Manifestations.

Background: The Goal-Control Model posits that episodic memory impairment leads to premature decay of everyday task goals, which contributes to task omissions (failure to accomplish task steps) in those with moderate to severe impairment. Although task omissions are not observed in those with mild episodic memory (mildEM) impairment, it has yet to be investigated if goal decay is reflected by subtle errors during task completion. We hypothesized that goal decay in mildEM impairment is reflected by imprecision in task performance at the end of everyday tasks.

Clinical Manifestations.

Background: Ecological momentary assessments (EMA) are increasingly used to monitor self-perceived memory and cognitive difficulties. We investigate how traditional self-reported, recall based assessments of cognitive difficulties correlate with EMA measures. We identify factors explaining shared variance between measures from the 40-item version of the Cognitive Change Index (CCI) and from EMA daily diaries, and factors explaining unique variance in each assessment.

Clinical Manifestations.

Background: Autonomic dysfunction has been linked to empathy deficits in symptomatic frontotemporal degeneration (FTD), but less is known about pre-symptomatic FTD mutation carriers (preFTD+). Our prior work found that increasing resting heart rate (RHR) over time predicts decline in emotional empathy in preFTD+. Here, we replicate previous findings in a large, multi-site consortium sample and assess relationships between RHR and empathy loss across disease stages.

Clinical Manifestations.

Background: Subjective cognitive concerns (SCC) are possibly one of the earliest clinical symptoms of dementia. There is growing interest in applying mobile app-based assessment to remotely screen for cognitive status in preclinical dementia, but the relationship between SCC and relevant mobile assessment metrics remains unclear. To address this gap, we characterize the relationship between SCC and adherence, satisfaction, and performance on digital cognitive assessment in cognitively unimpaired older adults.

Clinical Manifestations.

Background: Lewy body (LB) diseases can present with overlapping prodromal, cognitive, motor, autonomic or neuropsychiatric symptoms. Intuitively, greater symptom severity should correlate with greater pathological burden, but this has not been consistently shown. LB pathology does not translate to clinical expression in Incidental LB disease.

Clinical Manifestations.

Background: Olfactory identification is impaired in the early stages of Alzheimer's disease (AD), including mild cognitive impairment (MCI). This early sensory impairment could result from several factors such as early cognitive or structural cerebral damages caused by the disease. It is however not clear which factors are contributing the most to the olfactory impairment in older people at risk of developing AD.

The hematopoietic niche assembles through collective cell migration controlled by neighbor tissues and Slit-Robo signaling.

Niches are often found in specific positions in tissues relative to the stem cells they support. Consistency of niche position suggests that placement is important for niche function. However, the complexity of most niches has precluded a thorough understanding of how their proper placement is established.

Clinical Manifestations.

Background: Mobile, valid and engaging cognitive assessments are essential for detecting and tracking change in research participants and patients at risk for Alzheimer's Disease and Related Dementias (ADRDs). This pilot study aims to determine the feasibility and generalizability of an at-home, app-based cognitive assessment, the mobile cognitive app performance platform (mCAPP), to detect cognitive changes associated with aging and preclinical AD.

Method: mCAPP includes three gamified tasks (Figure 1): (1) a "concentration" memory task that includes learning and matching hidden card pairs with increasing memory load, pattern separation features (lure vs.

Clinical Manifestations.

Background: The Uniform Data Set (UDS) neuropsychological battery, administered across Alzheimer's Disease Centers (ADC), includes memory tests but lacks a list-learning paradigm. ADCs often supplement the UDS with their own preferred list-learning task. Given the importance of list-learning for characterizing memory, we aimed to develop a harmonized memory score that incorporates UDS memory tests while allowing centers to contribute differing list-learning tasks.

Clinical Manifestations.

Background: Passively-obtained smartphone digital phenotypes may yield objective estimates of everyday cognition in older adults compared to traditional cognitive/self-report measures typically confounded by sociodemographics. However, it is currently unknown what covariates are relevant when interpreting smartphone sensor data. We aimed to clarify which intrinsic and extrinsic factors are associated with digital phenotyping versus traditional cognitive measures in a cohort of older adults.

Clinical Manifestations.

Background: This study assesses the sensitivity of the mobile cognitive app performance platform (mCAPP), a mobile and engaging cognitive assessment tool, to participant sleep duration.

Method: The mCAPP includes three gamified tasks: a memory task ("Concentration"), a stroop-like task ("Brick Drop"), and a digit-symbol coding-like task ("Space Imposters"). For all games, shorter reaction times and fewer guesses indicates better performance.

Clinical Manifestations.

Background: Intraindividual variability (IIV) on neuropsychological task performance has demonstrated enhanced sensitivity to neuropathological decline compared to mean performance. It is currently unknown whether increased IIV in everyday behaviors may also lend added sensitivity to detect early subtle changes seen in pre-clinical ADRD.

Methods: In a pilot smartphone digital phenotyping study, 34 participants (M = 71.

Enhanced Accumulation and Penetration of Magnetic Nanoclusters in Tumors Using an 8-Magnet Halbach Array Leads to Improved Cancer Treatment.

Nanoparticles have gained attention as drug delivery vehicles for cancer treatment, but often struggle with poor tumor accumulation and penetration. Single external magnets can enhance magnetic nanoparticle delivery but are limited to superficial tumors due to the rapid decline in the magnetic field strength with distance. We previously showed that a 2-magnet device could extend targeting to greater tissue depths.

Craniofacial Pain Locations and Outcomes After Endoscopic Sinus Surgery for Unilateral Sphenoid Sinusitis: A Multi-Institutional Study.

Introduction: Unilateral sphenoid sinus opacification on computed tomography is caused by a variety of pathologies including inflammatory and infectious sinusitis, benign and malignant tumors, and encephaloceles. The purpose of this study was to report craniofacial pain locations and outcomes in inflammatory unilateral sphenoid sinusitis (USS) patients who underwent endoscopic sinus surgery (ESS).

Methods: A multi-institutional retrospective cohort study was conducted on all adult patients who had ESS for USS from 2015 to 2022.

Phenotype Spectrum of TRPM3-Associated Disorders.

Objective: Monoallelic variants in the transient receptor potential melastatin-related type 3 gene (TRPM3) have been associated with neurodevelopmental manifestations, but knowledge on the clinical manifestations and treatment options is limited. We characterized the clinical spectrum, highlighting particularly the epilepsy phenotype, and the effect of treatments.

Methods: We analyzed retrospectively the phenotypes and genotypes of 43 individuals with TRPM3 variants, acquired from GeneMatcher and collaborations (n = 21), and through a systematic literature search (n = 22).

Design and Synthesis of Triazine-Based Hydrogel for Combined Targeted Doxorubicin Delivery and PI3K Inhibition.

Melanoma, an aggressive skin cancer originating from melanocytes, presents substantial challenges due to its high metastatic potential and resistance to conventional therapies. Hydrogels, 3D networks of hydrophilic polymers with high water-retention capacities, offer significant promise for controlled drug delivery applications. In this study, we report the synthesis and characterization of hydrogelators based on the triazine molecular scaffold, which self-assemble into fibrous networks conducive to hydrogel formation.

Population Pharmacokinetics and Pharmacodynamics of Sotalol Following Expedited Intravenous Loading in Patients With Atrial Arrhythmias.

Sotalol, a class III antiarrhythmic agent, is used to maintain sinus rhythm in patients with atrial fibrillation or atrial flutter (AFIB/AFL). Despite its efficacy, sotalol's use is limited by its potential to cause life-threatening ventricular arrhythmias due to QT interval prolongation. Traditionally, sotalol administration required hospitalization to monitor these risks.

On the Limits of Anonymization for Promoting Diversity in Organizations.

Anonymization of job applicant resumes is a recommended strategy to increase diversity in organizations, but large-scale tests have shown mixed results. We consider decision-makers' social dominance orientation (SDO), a measure of anti-egalitarianism/endorsement of group-based hierarchy, to illustrate the limits of anonymization. Across four pre-registered studies ( = 3,150), we show that (a) lower SDO individuals are less likely to hire individuals from underrepresented groups when job materials are anonymized and (b) they are more likely to opt into using anonymization.

Differences in content of care and outcomes between a clinical practice guideline adherent program and usual care for patellofemoral pain: A retrospective pilot study.

Background: Patellofemoral pain (PFP) is a common knee condition in young and active individuals that is managed with highly variable treatment strategies.

Objective: To determine whether the length, number of visits, and content of physical therapy care for patients with PFP differ between a Clinical Practice Guidelines (CPG) adherent program and usual care. Additionally, the percentage of patients reporting clinically important improvements in patient-reported outcomes in each group was evaluated as an exploratory aim.