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Vessel strike encounter risk model informs mortality risk for endangered North Atlantic right whales along the United States east coast.
Sci Rep
January 2025
Office of Protected Resources, NOAA Fisheries, Silver Spring, MD, 20910, USA.
Vessel strikes are a critical threat to endangered North Atlantic right whales (Eubalaena glacialis), significantly contributing to their elevated mortality. Accurate estimates of these mortality rates are essential for developing effective management strategies to aid in the species' recovery. This study enhances existing vessel strike models by incorporating detailed regional data on vessel traffic characteristics as well as whale distribution and behavior.
View Article and Find Full Text PDFBACT: nonparametric Bayesian cell typing for single-cell spatial transcriptomics data.
Brief Bioinform
November 2024
Institute of Statistics and Big Data, Renmin University of China, No. 59 Zhongguancun Street, 100872 Beijing, China.
The spatial transcriptomics is a rapidly evolving biological technology that simultaneously measures the gene expression profiles and the spatial locations of spots. With progressive advances, current spatial transcriptomic techniques can achieve the cellular or even the subcellular resolution, making it possible to explore the fine-grained spatial pattern of cell types within one tissue section. However, most existing cell spatial clustering methods require a correct specification of the cell type number, which is hard to determine in the practical exploratory data analysis.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
VA Boston Healthcare System, Boston, MA, USA.
Background: T-cell infiltration into the brain parenchyma is associated with hyperphosphorylated tau (p-tau) accumulation in neurodegenerative diseases. Chronic traumatic encephalopathy (CTE) is a progressive tauopathy caused by exposure to repetitive head impacts (RHI). CTE is defined by the perivascular accumulation of p-tau at the cortical sulcal depths and can be stratified into mild and severe pathological stages.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Kansas Medical Center, Kansas City, KS, USA.
Background: Understanding the proteomes of specific cell types within the brain is crucial for elucidating the mechanisms underlying Alzheimer's disease (AD). However, the isolation and analysis of these diverse and low-abundance cell populations remain significant challenges. This study aims to assess GeoMxTM Digital Spatial Profiler (DSP) by NanoString Technologies (NanoString, Seattle, USA) capable of spatially resolving protein expression profile of AD brains extracted from formalin-fixed paraffin-embedded (FFPE) specimens.
View Article and Find Full Text PDFBasic Science and Pathogenesis.
Alzheimers Dement
December 2024
Illinois Institute of Technology, Chicago, IL, USA.
Background: Elevated iron in brain is a source of free radicals that causes oxidative stress which has been linked to neuropathologies and cognitive impairment among older adults. The aim of this study was to investigate the association of iron levels with transverse relaxation rate, R, and white matter hyperintensities (WMH), independent of the effects of other metals and age-related neuropathologies.
Method: Cerebral hemispheres from 437 older adults participating in the Rush Memory and Aging Project study (Table 1) were imaged ex-vivo using 3T MRI scanners.
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