Biomarkers.

Background: Type 2 diabetes and glucose metabolism have previously been linked to cognitive decline and higher risk of developing Alzheimer's disease (AD) dementia. Yet, the relation of glucose metabolism with amyloid and tau pathology remains unclear. This knowledge will help understanding the importance of glucose regulation in relation to AD.

Biomarkers.

Background: Plasma GFAP, a biomarker of astrogliosis, has previously been linked with Alzheimer's disease clinical status, amyloid levels, and memory performance in older adults. The neuroanatomical pathways by which GFAP might impact cognitive outcomes remains unclear. We evaluated whether fornix structure, which is critically involved in AD-associated cholinergic pathways, is associated with interactive effects of plasma GFAP and amyloid levels.

Biomarkers.

Background: Dementia with Lewy bodies (DLB) is the second most common form of neurodegenerative dementia. Although its prevalence, DLB is under-investigated and frequently misdiagnosed and there are no available biomarkers. The aim of this study was to investigate salivary a-synuclein (a-syn) and tau species in DLB patients as potential disease biomarkers and to assess their potential in differential diagnosis with Alzheimer's Disease (AD) and Parkinson's Disease (PD).

Biomarkers.

Background: As global populations age, both Alzheimer's Disease (AD) and diabetes mellitus (DM) incidence are projected to increase tremendously over the coming 20-30 years. Studies have found that having DM is associated with increased risk of developing AD dementia. It remains unclear however whether DM impacts underlying AD pathology.

Clinical Conundrum: Climbing at the Extremes of High Elevation with Nonischemic Cardiomyopathy.

Cornwell, William, Aaron L Baggish, Christoph Dehnert, Benjamin D Levine, and Andrew M Luks. Clinical Conundrum: Climbing at the Extremes of High Elevation with Nonischemic Cardiomyopathy. 00:00-00, 2024.

Topochemical Synthesis and Electronic Structure of High-Crystallinity Infinite-Layer Nickelates on an Orthorhombic Substrate.

Superconductivity in infinite-layer nickelates has stirred much research interest, to which questions regarding the nature of superconductivity remain elusive. A critical leap forward to address these intricate questions is through the growth of high-crystallinity infinite-layer nickelates, including the "parent" phase. Here, we report the synthesis of a high-quality thin-film nickelate, NdNiO.

Do the biological characteristics of trout (Salmo trutta) smolts influence their spring migration timing and maiden marine sojourn duration?

Anadromous salmonids migrate seaward to exploit feeding and growth opportunities in marine habitats, yet how smolt biological characteristics influence their marine migratory behavior remains poorly understood. This study used 9 years of trout (Salmo trutta) population monitoring data from 15,595 tagged age-0+ parr, 1033 smolts detected migrating downstream in spring, and 99 adults detected returning from their first marine migration to the River Frome (Dorset, UK) to investigate the influence of smolt biological characteristics on their migration timing and maiden marine sojourn duration. Age-specific differences in the influence of smolt length on migration timing were found, with longer 1-year-old smolts emigrating later than their shorter counterparts within the same age class, but the opposite association existed for 2-year-old smolts.

Developing Topics.

Background: Alzheimer's disease (AD) is a neurodegenerative condition characterized by a gradual decline in mental function, progressing to death. Evidence suggests the apolipoprotein E (ApoE) gene influences Alzheimer's risk. Allele E2 is neuroprotective, E3 is neutral, and E4 is associated with a higher genetic risk for AD.

Developing Topics.

Background: We aim to describe the imaging findings in pre-symptomatic and early-symptomatic individuals carrying a recently described novel APP duplication rearrangement causing early-onset AD (EOAD).

Method: We studied individuals from one pedigree that carry APP duplication and CH 5 mutation gain that had structural and resting state functional (rs-f) brain MRI. Non-carrier family members were assessed as controls.

Developing Topics.

Background: Different pathologies can cause dementia, including Alzheimer's disease (AD), dementia with Lewy bodies (DLB) and frontotemporal dementia. Understanding the biological mechanisms underlying these diseases is important in order to develop therapies. Here we performed cerebrospinal fluid (CSF) proteomics in AD, DLB and FTD in order to study proteomic changes and identify novel potential biomarkers.

Developing Topics.

Background: Alzheimer's Disease (AD), a progressively worsening neurodegenerative disorder, impacts millions globally. Understanding its progression is crucial for developing effective interventions and management strategies. However, high variability in disease progression amongst individuals and the complexity of neuroimaging data pose significant challenges.

Developing Topics.

Background: New studies have linked epidemiological and pathophysiological relationships between oral microbiota and Alzheimer's disease (AD), a neurodegenerative disease more prevalent in the Puerto Rican population. Dysbiosis of the oral microbiome induces periodontal disease, which increases systemic chronic inflammation, an important component in the multifactorial pathogenesis of AD. This project aims to characterize the oral microbiota's composition and diversity in AD patients compared to healthy controls, and explore the potential role of oral dysbiosis in dementia.

Developing Topics.

Background: The anterior portion of the MTL is one of the first regions targeted by pathology in sporadic Alzheimer's disease (AD) indicating the potential for imaging metrics from this region to serve as valuable imaging biomarkers. However, most existing automated approaches for MTL segmentation do not incorporate anterior MTL subregions, and the few that do fail to account for its complex anatomical variability. Leveraging a unique postmortem dataset consisting of histology and structural MRI scans we aimed to develop an anatomically valid segmentation protocol for anterior entorhinal cortex (ERC), Brodmann Area (BA) 35, and BA36 and apply it for automated MTL segmentation of in vivo 3 tesla (T) MRI.

Developing Topics.

Background: Alzheimer's disease (AD) is the most common cause of dementia, consisting of a highly debilitating disorder. It disproportionately affects Caribbean Hispanics, including Puerto Ricans living on the island, where it ranks as the fourth leading cause of death. Reported disparities in AD severity and mortality within this population may stem from various factors, including nutrition, lifestyle, socioeconomic risk status, and more prevalent chronic diseases.

Developing Topics.

Background: Alzheimer's disease (AD) comprise over 70% of dementia cases in the United States (US), characterized by progressive neurodegenerative symptoms. In the US and Puerto Rico (PR), AD is the sixth and fourth leading cause of death, respectively. The Gut-Brain Axis is a bidirectional communication mechanism between the central nervous system and microbes that reside in the gastrointestinal tract.

Alzheimer's Imaging Consortium.

Background: Different patterns of atrophy exist in the dementia stage of AD. However, little is known about the heterogeneity of atrophy patterns and the mechanisms that drive subsequent propagation of the disease in the preclinical stages.

Method: From the AMYPAD-PNHS cohort, we included a total of 1323 non-demented individuals, including 1094 amyloid-negative, and 229 amyloid-positive participants (Table 1).

Analysis of the NMR Parameters Shielding and Spin-Spin Coupling Constants of Glycine Conformers.

In this study, we worked at the CCSD/aug-cc-pVTZ level to obtain the conformers of glycine in its neutral and zwitterionic forms in the gas and water phases. We then computed the NMR properties (spin-spin coupling constants and nuclear magnetic shieldings) at the SOPPA/aug-cc-pVTZ-J level. We attempt to elucidate the apparent discrepancy arising from two previous works by Valverde et al.

Dementia Care Research and Psychosocial Factors.

Background: Environmental factors account for a considerable percentage of dementia cases. Studies in animal models have shown that environmental enrichment (EE; i.e.

Dementia Care Research and Psychosocial Factors.

Background: To promote caregiver health and reduce burden, the Savvy Caregiver Program (SCP), an evidence-based caregiving intervention, was adapted with a Native Hawaiian (NH) community in Hawai'i. The adaptation process occurred prior to pilot testing in two phases: 1) the preliminary adaptation by a community action board (CAB) and mentorship team and 2) pre-pilot testing and expert validation with NH adults. The preliminary adaptation, titled 'Auamo Kuleana O Nā Ma'i Poina ('Auamo Kuleana), aimed to include Hawaiian values, language, proverbs, and culturally relevant examples while maintaining the core components of the program.

Dementia Care Research and Psychosocial Factors.

Background: Memory Café, introduced by Dr. Bere Miesen in 1997, has become a global initiative fostering connections among individuals affected by dementia. This community-based platform facilitates interactions between dementia patients, caregivers, professionals, and the wider public, allowing for open sharing of experiences.

Cobalt-Catalyzed Enantioselective Reductive Coupling of Imines and Internal Alkynes.

Chiral allyl amines are important structural components in natural products, pharmaceuticals, and chiral catalysts. Herein, we report a cobalt-catalyzed enantioselective reductive coupling of imines with internal alkynes to synthesize chiral allyl amines. The reaction is catalyzed by a cobalt complex derived from commercially available bisphosphine ligand utilizing zinc as the electron donor.

Paederia Foetida Linn (Rubiaceae): Chemical Diversity, Phytopharmacological Potential, Quantitative Analysis and Clinical Approaches.

The discovery of novel counteractive pharmaceuticals, which have recently generated much interest, has played a significant role in the development of drugs derived from herbal medicines or botanical sources. Paederia foetida (P. foetida) is one such example of a role in both traditional and traditional medicine.

Advancing Monogenic Diabetes Research and Clinical Care by Creating a Data Commons: The Precision Diabetes Consortium (PREDICT).

Monogenic diabetes mellitus (MDM) is a group of relatively rare disorders caused by pathogenic variants in key genes that result in hyperglycemia. Lack of identified cases, along with absent data standards, and limited collaboration across institutions have hindered research progress. To address this, the UChicago Monogenic Diabetes Registry (UCMDMR) and UChicago Data for the Common Good (D4CG) created a national consortium of MDM research institutions called the PREcision DIabetes ConsorTium (PREDICT).

Purine metabolites regulate leukemic cell sensitivity toward cytarabine.

Not available.

The Influence of Heart Rate on Peripheral Vascular Function Among Pacemaker Patients.

The finger photoplethysmography fitness index (PPGF), a marker of peripheral vascular function, has been linked to heart rate (HR) variability. However, the influence of acute HR changes on resting PPGF, a purported indicator of local blood flow, remains unclear. This study aimed to determine the influence of acute HR changes on resting PPGF.