Background: The projected doubling of dementia prevalence by 2050 highlights the critical importance of altering the dementia trajectory and associated burden. Modifiable risk factors account for 40% of dementia risk (Livingston et al, 2020), including physical inactivity in late life. Protective effects of physical activity (PA) may be greater during earlier stages of neuropathological change, either directly by influencing the brain, or, indirectly by protecting against hypertension, obesity, and diabetes.
View Article and Find Full Text PDFPlants possess cell-surface recognition receptors that detect molecular patterns from microbial invaders and initiate an immune response. Understanding the conservation of pattern-triggered immunity within different plant organs and across species is crucial to its sustainable and effective use in plant disease management but is currently unclear.We examined the activation and immune response patterns of three pattern recognition receptors (PRRs: FLS2, FLS3, and CORE) in different developmental regions of roots and in leaves of multiple accessions of domesticated and wild tomato ( and ) using biochemical and genetic assays.
View Article and Find Full Text PDFThe flanker task is a widely used measure of cognitive control abilities. Drift-diffusion modeling of flanker task behavior can yield separable parameters of cognitive control-related subprocesses, but the parameters' psychometrics are not well-established. We examined the reliability and validity of four behavioral measures: (1) raw accuracy, (2) reaction time (RT) interference, (3) NIH Toolbox flanker score, and (4) two drift-diffusion model (DDM) parameters-drift rate and boundary separation-capturing evidence accumulation efficiency and speed-accuracy trade-off, respectively.
View Article and Find Full Text PDFBackground: Chemotherapy-induced peripheral neuropathy (CIPN), a common problem, can impair function and quality of life in patients, potentially limiting chemotherapy and adversely affecting outcomes.
Methods: This trial compared investigational hand therapy intervention (Investigational) compared with a traditional occupational therapy approach (Traditional) to prevent CIPN in patients with pancreatic cancer receiving gemcitabine and albumin-bound paclitaxel containing regimens.
Results: forty-nine patients were enrolled with 40 evaluable for statistical analysis (21 Investigational/19 Traditional).
Experimental cell therapies for skeletal muscle conditions have shown little success, primarily because they use committed myogenic progenitors rather than true muscle stem cells, known as satellite cells. Here we present a method to generate in vitro-derived satellite cells (idSCs) from skeletal muscle tissue. When transplanted in small numbers into mouse muscle, mouse idSCs fuse into myofibers, repopulate the satellite cell niche, self-renew, support multiple rounds of muscle regeneration and improve force production on par with freshly isolated satellite cells in damaged skeletal muscle.
View Article and Find Full Text PDFWe present a case of recurrent multidrug-resistant (. ) in a patient who required multiple hospitalizations. The patient's case was complicated by interval admissions to the intensive care unit for septic and hypovolemic shock for 12 months to manage .
View Article and Find Full Text PDFThis systematic review and meta-analysis delved into the impact of race and ethnicity on outcomes following foot and ankle surgery, an area garnering increasing attention within the medical community. Despite significant literature on postsurgical clinical and functional outcomes, limited research has explored the influence of racial and ethnic factors on postoperative outcomes. In this study, data from 33 relevant studies, involving a total of 557,734 patients, were analyzed to assess outcomes across different racial and ethnic groups.
View Article and Find Full Text PDFSexual and gender minority (SGM) adolescents are at elevated risk for depression. This risk is especially pronounced among adolescents whose home environment is unsupportive or nonaffirming, as these adolescents may face familial rejection due to their identity. Therefore, it is critical to better understand the mechanisms underlying this risk by probing temporally sensitive associations between negative mood and time spent in potentially hostile home environments.
View Article and Find Full Text PDFMany school nurses experienced increased work burden and stress during the COVID-19 pandemic. This analysis examined data from a Centers for Disease Control and Prevention cross-sectional, nationwide survey of school nurses in March 2022 to examine associations between school nurses' ability to conduct their core responsibilities and selected nurse and school factors among school nurses during the 2021-2022 school year and COVID-19 pandemic. Perceived adequate staffing and financial compensation reduced the odds of reported difficulties across all core school nursing tasks.
View Article and Find Full Text PDFβ-barrels are a class of membrane proteins made up of a cylindrical, anti-parallel β-sheet with a hydrophobic exterior and a hydrophilic interior. The majority of proteins found in the outer membranes (OMs) of Gram-negative bacteria, mitochondria, and chloroplasts are β-barrel outer membrane proteins (OMPs). β-barrel OMPs have a diverse repertoire of functions, including nutrient transport, secretion, bacterial virulence, and enzymatic activity.
View Article and Find Full Text PDFBackground: Consistent patterns of reduced cortical thickness have been identified in early Alzheimer's disease (AD). However, the pathological factors that influence rates of cortical thinning within these AD signature regions remain unclear.
Methods: Participants were from the Insight 46 substudy of the MRC National Survey of Health and Development (NSHD; 1946 British birth cohort), a prospective longitudinal cohort study.
Military personnel experience elevated bone injury incidence, partly due to arduous and repetitive training. Non-traditional High-Intensity Interval Training-style (HIIT) may benefit pre-enlisted Reserve Officer Training Corps (ROTC) cadet's musculoskeletal health and performance prior to military service. This study investigated 16 ROTC ( = 12 males; = 4 females) and 15 physically active sex-, age-, and body mass-matched Controls' musculoskeletal health and performance from November to April.
View Article and Find Full Text PDFBackground: Cross sectional studies have identified linguistic correlates of major depressive disorder (MDD) in smartphone communication. However, it is unclear whether monitoring these linguistic characteristics can detect when an individual is experiencing MDD, which would facilitate timely intervention.
Methods: Approximately 1.
Candida auris, an emerging fungal pathogen with significant morbidity and mortality, can be difficult for health care facilities to identify, isolate, and control. We present our identification and infection control response to Candida auris at a 695-bed academic level I trauma center in Florida.
View Article and Find Full Text PDFVascular aging affects multiple organ systems, including the brain, where it can lead to vascular dementia. However, a concrete understanding of how aging specifically affects the brain vasculature, along with molecular readouts, remains vastly incomplete. Here, we demonstrate that aging is associated with a marked decline in Notch3 signaling in both murine and human brain vessels.
View Article and Find Full Text PDFThe ability to accurately identify and interpret others' emotions is critical for social and emotional functioning during adolescence. Indeed, previous research has identified that laboratory-based indices of facial emotion recognition and engagement with emotional faces predict adolescent mood states. Whether socioemotional information processing relates to real-world affective dynamics using an ecologically sensitive approach, however, has rarely been assessed.
View Article and Find Full Text PDFWe investigate associations between normal-appearing white matter microstructural integrity in cognitively normal ∼70-year-olds and concurrently measured brain health and cognition, demographics, genetics and life course cardiovascular health. Participants born in the same week in March 1946 (British 1946 birth cohort) underwent PET-MRI around age 70. Mean standardized normal-appearing white matter integrity metrics (fractional anisotropy, mean diffusivity, neurite density index and orientation dispersion index) were derived from diffusion MRI.
View Article and Find Full Text PDFIn the decade since the largest Ebola Virus Disease (EVD) outbreak in history, hospitals within the United States have discovered deficiencies in EVD infection control protocols. A large academic level I trauma medical center and frontline EVD receiving hospital in northeast Florida conducted a large-scale review and revision of the facility's EVD infection control protocols to increase preparedness. The revision process revealed opportunities for improvement and highlighted the need for excellent resource management and interdepartmental communication.
View Article and Find Full Text PDFJ Psychopathol Clin Sci
November 2023
Most adolescents with depression remain undiagnosed and untreated-missed opportunities that are costly from both personal and public health perspectives. A promising approach to detecting adolescent depression in real-time and at a large scale is through their social communication on the smartphone (e.g.
View Article and Find Full Text PDFThe purpose of this pilot study was to examine the impact of a 10-week psycho-educational group intervention entitled "Oppression to Opportunity Program" (OOP), which was designed to enhance the academic adjustment of vulnerable, first-generation college students. Participants in the pilot group also experienced multiplicative vulnerabilities as result of the intersecting identities of race, ethnicity, income, religious affiliation, disabilities, sexual orientation, and gender identity. The OOP intervention consisted of eight modules, plus an orientation and a closing session, designed to lessen key barriers (e.
View Article and Find Full Text PDFThe outer membranes (OM) of Gram-negative bacteria contain a class of proteins (TBDTs) that require energy for the import of nutrients and to serve as receptors for phages and protein toxins. Energy is derived from the proton motif force (pmf) of the cytoplasmic membrane (CM) through the action of three proteins, namely, TonB, ExbB, and ExbD, which are located in the CM and extend into the periplasm. The leaky phenotype of exbB exbD mutants is caused by partial complementation by homologous tolQ tolR.
View Article and Find Full Text PDFIntroduction: The Centiloid scale aims to harmonize amyloid beta (Aβ) positron emission tomography (PET) measures across different analysis methods. As Centiloids were created using PET/computerized tomography (CT) data and are influenced by scanner differences, we investigated the Centiloid transformation with data from Insight 46 acquired with PET/magnetic resonanceimaging (MRI).
Methods: We transformed standardized uptake value ratios (SUVRs) from 432 florbetapir PET/MRI scans processed using whole cerebellum (WC) and white matter (WM) references, with and without partial volume correction.
Aging is a complex process involving transcriptomic changes associated with deterioration across multiple tissues and organs, including the brain. Recent studies using heterochronic parabiosis have shown that various aspects of aging-associated decline are modifiable or even reversible. To better understand how this occurs, we performed single-cell transcriptomic profiling of young and old mouse brains after parabiosis.
View Article and Find Full Text PDFTo improve access to primary care in underserved communities, we established a hybrid model of delivering team-based, comprehensive primary care using both in-person and virtual care options with family physician leadership. Using a cross-sectional online survey (n = 121), results showed high levels (90%) of patient satisfaction. Our findings suggest that a similar hybrid model for primary care delivery can provide levels of patient satisfaction comparable to traditional in-person models of primary care.
View Article and Find Full Text PDFClimate change and land-use change are leading drivers of biodiversity decline, affecting demographic parameters that are important for population persistence. For example, scientists have speculated for decades that climate change may skew adult sex ratios in taxa that express temperature-dependent sex determination (TSD), but limited evidence exists that this phenomenon is occurring in natural settings. For species that are vulnerable to anthropogenic land-use practices, differential mortality among sexes may also skew sex ratios.
View Article and Find Full Text PDF