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Researchers say DOE report cherry-picks data to downplay threat of greenhouse gases

Slow-motion footage helps scientists predict flight paths of molten projectiles

International food security body issues rare alert about “worst-case scenario” unfolding

Cerebrovascular dysfunction underlies many neurological disorders, yet how genetic variants in brain vascular cells drive disease risk remains unknown. We developed MultiVINE-seq to simultaneously profile RNA and chromatin accessibility in vascular, perivascular, and immune cells from 30 human brains. Mapping genome-wide association study (GWAS) data to our multi-omic atlas linked thousands of GWAS disease-risk variants to target cell types and genes, including 2,605 previously unmapped. We...

ER and mitochondrial stress are often interconnected and considered major contributors to aging as well as neurodegeneration. Coordinated induction of ER^(UPR) and mito^(UPR) has been observed in diabetes and pulmonary disorders. However, in the context of aging and neurodegeneration, regulation of this intra-organellar crosstalk has remained relatively elusive. Here, we demonstrate that pyruvate dehydrogenase kinase 4 (PDK4), a mitochondrial protein, accumulates at the ER-mitochondrial contact...

Physiological brain aging is associated with cognitive impairment and neuroanatomical changes. Brain age prediction of routine clinical 2D brain MRI scans were understudied and often unsuccessful. We developed a novel brain age prediction framework for clinical 2D T1-weighted MRI scans using a deep learning-based model trained with research grade 3D MRI scans mostly from publicly available datasets (N = 8681; age = 51.76 ± 21.74). Our model showed accurate and fast brain age prediction on...

The accumulation of amyloid fibrils has been identified in tissues outside the brain, yet little is understood about the formation of extracerebral amyloidosis and its impact on organ aging. Here, we demonstrate that both transgenic Alzheimer's disease (AD) mice and naturally aging mice exhibit accumulated senescent bone marrow adipocytes (BMAds), accompanied by amyloid deposits. Senescent BMAds acquire a secretory phenotype, markedly increasing secretion of serum amyloid P component (SAP), also...

Alzheimer's disease and related disorders (ADRD), as well as general age-related cognitive decline, are known to be multifactorial with heterogeneous etiologies. Identifying and accommodating heterogeneity in any one data set can be pursued using different analytical techniques, each with different assumptions or purposes. Whereas a great deal of research has explored clustering individuals of variables that exhibit greater similarity in some way, little research has explored evidence for...