Biomarkers.

Background: Early onset dementia (EOD) affects people at the peak of their personal and professional responsibilities and economic productivity. Alzheimer's disease (AD) and Frontotemporal Dementia (FTD) are the most common EOD etiologies in Non-Latinx White adults (NLW). Black and Latinx older adults bear a disproportionate burden of dementia compared to NLW, likely due to vulnerabilities that confer increased risk, such as cardiovascular factors, socioeconomic stressors, and structural racism.

Biomarkers.

Background: Vascular contributions to cognitive impairment and dementia (VCID) and Alzheimer's disease (AD) are the two most common forms of dementia, with overlapping risk factors including cardiovascular risk factors such as hypertension and dyslipidemia. The etiology of both VCID and AD shows sex-based differences, as well as sex-based differences in cardiovascular risk factors. However, how sex differences influence AD and angiogenic biomarkers in older adults who have high cardiovascular risk factors is not known.

Biomarkers.

Background: Patients with cognitive impairment are likely to suffer from weakening of functional connectivity between certain brain regions, which may often be accompanied by increased connectivity between some other regions, the latter of which may reflect the compensatory mechanisms of the brain. In this EEG-based study, we investigate the differences in functional connectivity between persons with normal cognition (NC) and MCI patients in motion detection tasks.

Method: Our research focuses on task-based EEG (64-channel) acquired at Wayne State University, where participants with subjective cognitive complaints were asked to perform a motion direction discrimination task.

Biomarkers.

Background: Two main risk factors of Alzheimer's disease (AD) are aging and APOE-ε4. However, some individuals remain cognitively normal despite having these risk factors. They are considered "cognitively resilient".

Evaluating ovarian cancer risk-reducing salpingectomy acceptance: a survey.

With evidence that salpingectomy is effective in preventing high grade serous carcinoma, it is time to consider offering this procedure to people at higher-than-average lifetime risk for ovarian cancer, despite not having a pathogenic genetic variant that increases risk for ovarian cancer. This targeted approach has potential to be effective at reducing ovarian cancer incidence, and unlike opportunistic salpingectomy is focused on people with an increased lifetime risk of ovarian cancer. However, the acceptability of this approach within the population of potential patients remains unknown.

Biomarkers.

Background: White Matter Hyperintensities (WMH) appear on T2-weighted Fluid-Attenuated Inversion Recovery (FLAIR) Magnetic Resonance Imaging (MRI) and are an important biomarker of cerebral small vessel disease (CSVD), cognitive decline, and stroke. However, manual delineation is laborious and bias-prone, while automated segmentation has proven challenging. With the recent conclusion of the MICCAI-Society WMH segmentation challenge, and our large clinical trials, "Risk Reduction for Alzheimer's Disease" (rrAD) and "Hypertension, Intracranial Pulsatility and Brain Amyloid-beta Clearance in older adults" (HIPAC), we investigated the differences in the total WMH volume segmented by various algorithms to ensure the extraction of accurate and meaningful image-derived phenotypes.

Biomarkers.

Background: SuperAgers-individuals age 80+ with episodic memory performance at least as good as those 20-30 years younger-provide a unique perspective on cognitive resilience and resistance in aging. The SuperAging Research Initiative (SRI), spearheaded by The University of Chicago and involving multiple academic partners, investigates factors underpinning robust cognitive aging. One key SRI project, leverages a fully remote data collection paradigm to: 1) discern activity patterns that characterize SuperAgers and 2) explore the 'complexity hypothesis in aging'-whether dynamic physiological responsiveness is a hallmark of exceptional cognitive aging.

Biomarkers.

Background: Changes in effective connectivity, which represents the directed connectivity or information flow from one brain region to the other, have been proposed to underlie mild cognitive impairment (MCI) and Alzheimer's disease (AD) pathology. The present study explores possible differences in brain effective connectivity between persons with normal cognition (NC) and patients with MCI.

Method: Our research focuses on task-based EEG (64-channel) acquired at Wayne State University, where participants were asked to perform a motion direction discrimination task.

Serum Phosphorus and Hypophosphatemia During Therapy of Diabetic Ketoacidosis in Children: Single-Center, Retrospective Cohort 2016-2022.

Objectives: To assess factors associated with serum phosphorus (P) and hypophosphatemia in children with type 1 diabetes mellitus (T1DM) treated for diabetic ketoacidosis (DKA).

Design: Retrospective cohort.

Setting: Community-based PICU in a university-affiliated hospital.

Biomarkers.

Background: Disease-modifying treatments for Alzheimer's disease highlight the need for early detection of cognitive decline. However, most primary care providers do not currently perform routine cognitive testing, in part due to a lack of time and resources to administer and interpret the tests. Brief, self-scoring, and sensitive digital cognitive assessments, such as the Linus Health Core Cognitive Evaluation (CCE)-which includes the Digital Clock and Recall (DCR™) and the Life and Health Questionnaire (LHQ)-can automatically provide medically-informed recommendations that can address this need.

Biomarkers.

Background: The timing of tau-PET accumulation and cognitive decline in sporadic early-onset Alzheimer's disease (eoAD, age-at-onset<65) has not been established and is needed to optimize tau-PET as an outcome measure in clinical trials. Here we leverage large-sample, longitudinal data from the Longitudinal Early-onset Alzheimer's Disease Study (LEADS) to model tau-PET accumulation in three regions relative to cognitive decline.

Method: Longitudinal [F]Flortaucipir-PET (FTP) and CDR-SB scores were acquired in 195 amyloid-PET-positive, sporadic eoAD patients with MCI or mild dementia due to AD at baseline (Table 1).

Biomarkers.

Background: Maximizing the benefits of disease-modifying treatments (DMTs) for Alzheimer's disease (AD) requires early identification of cognitive impairment and abnormal brain amyloid-beta (Aβ) status. Either one alone is insufficient. Additionally, clinical trials of DMTs are impeded by high screen failure rates and costly prescreening.

Biomarkers.

Background: The Centiloid framework was developed to harmonize amyloid-PET quantification across radiotracers and processing pipelines to facilitate data sharing and merging; it is now widely used across research and clinical trials. As we just completed the quantification of 10,361 amyloid-PET scans from the largest "real-world" study of amyloid-PET (IDEAS) and are about to release the data, we aimed to compare the distribution of IDEAS Centiloid values with other available datasets.

Method: In IDEAS, amyloid scans were acquired across 343 facilities and centrally processed at UCSF using a PET-only pipeline.

Biomarkers.

Background: Diffusion magnetic resonance imaging (dMRI) studies show cerebral white matter alterations are associated with both mild cognitive impairment (MCI) and contextual psychosocial factors. However, these reports are almost exclusively based on older adults residing in metropolitan areas. Individuals living in rural communities face increased risk for Alzheimer's disease and related dementias, but little is known regarding the sensitivity of dMRI markers to incident MCI or psychosocial stressors in this population.

Public Health.

Background: Subjective social status in the US (SSS) is related to physical, mental, and cognitive health independent of socioeconomic status, yet few studies have assessed SSS in one's community or examined how SSS may function differentially across the intersection of race and gender. This study aimed to assess the relationships between SSS-US, SSS-community, brain health, and cognitive reserve utilizing an intersectional lens to extend the literature on social determinants of Alzheimer's disease and related dementia (ADRD) risk.

Methods: Participants were 867 older adults from the Washington Heights-Inwood Columbia Aging Project (WHICAP).

Public Health.

Background: Growing research suggests that food insecurity is associated with worse cognitive functioning; however, longitudinal studies are needed to examine food insecurity and dementia risk.

Methods: Using data from the 2013-2021 Panel Study of Income Dynamics, the longest running nationally representative household panel survey, we examined the effects of food insecurity on dementia risk among 3,232 adults (≥65 years). Food insecurity was assessed biennially using the US Household Food Security Survey Module since 2015.

Public Health.

Background: Cancer diagnosis is related to poor short-term cognition, reflecting the condition, stress, and management. Less is known about long-term relationships between time since cancer diagnosis and cognition. We evaluated the association between recency of cancer diagnosis and cognition.

Public Health.

Background: Dementia is underdiagnosed by the healthcare system, and MCI is rarely identified. Thus, while interventions to reduce cognitive decline are becoming increasingly available, it is not clear how appropriate individuals will be evaluated for treatment opportunities. A first step to improving diagnosis is understanding how older individuals with dementia or MCI interact with the healthcare system, especially ambulatory evaluation and management (E&M) visits, the backbone of healthcare.

Public Health.

Background: Neighborhood context includes conditions of the environment where people spend their time (e.g., work, play, seek health care) and it may affect residents' cognitive health.

Public Health.

Background: Adverse social exposome (indexed by national Area Deprivation Index [ADI] 80-100 or 'high ADI') is linked to structural inequities and increased risk of Alzheimer's disease neuropathology. Twenty percent of the US population resides within high ADI areas, predominantly in inner cities, tribal reservations and rural areas. The percentage of brain donors from high ADI areas within the Alzheimer's Disease Research Center (ADRC) brain bank system is unknown.

Public Health.

Background: N-terminal brain natriuretic peptide (NTproBNP) is a marker of cardiac health and a strong predictor of mortality, incident cardiovascular disease (CVD), and sudden cardiac death in community populations. A link between the menopause transition (MT), sex hormones, and NTproBNP has been suggested, though, no studies have formally examined how NTproBNP changes over the MT. In addition of being a marker of cardiac health, studies suggest NTproBNP to be related to cognitive performance, yet those studies have not considered the MT.

Public Health.

Background: Animal models provide a valuable basis for identification of conserved pathological substrates and processes underlying age-related diseases as well as neurobiological features supporting cognitive resilience in the aging brain. Behavioral measures are a fundamental component in the assessment of cognitive processes but are rarely standardized across laboratories. Currently, there is a scarcity of centralized and standardized data infrastructure for behavioral experiment data collected across laboratories which presents a barrier for data sharing, hypothesis generation, and collaboration.

Public Health.

Background: Over 30 million Americans have diabetes, with 9 million likely undiagnosed. Diabetes is associated with cognitive decline and risk for Alzheimer's disease and related dementia (ADRD). The lifetime impact of diabetes and prediabetes on cognition may be cumulative.

Public Health.

Background: Most research on cognitive difficulties in the US focus on minoritized groups that are part of the federal minimum reporting guidelines, include White, Black, Hispanic/Latino, Asian, American Indian/Alaskan Native (AI/AN), and Native Hawaiian/Other Pacific Islander (NH/OPI) individuals. Research has begun to describe cognitive difficulties among Middle Eastern and North African (MENA) adults, but it is limited because they are defined as White. In 2023, the Office of Management and Budget (OMB) proposed adding a separate checkbox for MENA individuals.

Public Health.

Background: The IDEAL study is a randomized clinical trial investigating the psychosocial, behavioral, and cognitive impacts of genetic risk disclosure for late-onset Alzheimer's disease (LOAD) among Latinos.

Methods: We used address-based sampling in northern Manhattan to recruit Latinos aged 40-64 for a community-based survey and clinical trial. Data collection encompasses demographics, Alzheimer's disease (AD) family history, knowledge and beliefs about AD and genetics, current mental health status, acculturation, impact of COVID-19, familism, fatalism, caregiver status, and prior AD genetic testing.