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http://dx.doi.org/10.1111/odi.14738 | DOI Listing |
Am J Dermatopathol
December 2024
Department of Surgical Oncology, St. John's Medical College & Hospital, Bangalore, India.
Introduction: Melanoma arising in blue nevus (BN) is usually evident on histopathology. However, there are cases in the gray zone where neither morphology nor immunostains and molecular studies are conclusive.
Case Report: A 33-year-old man presented with greenish discoloration of the abdominal skin at birth.
Alzheimers Dement
December 2024
University of Kentucky College of Medicine, Sanders-Brown Center on Aging, Lexington, KY, USA.
Background: Alzheimer's disease (AD) and vascular cognitive impairment and dementia (VCID) are the predominant types of dementia in older adults, associated with memory loss and cognitive deficits. White matter hyperintensities (WMH) are linked to both AD and VCID. Astrocytes play a crucial role in WM integrity, encompassing functions like neuroinflammation, oxidative stress, and Aβ clearance.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA.
Background: Cerebral small vessel disease (CSVD) is the most prevalent cause of vascular cognitive impairment. Executive function impairment and white matter (WM) lesions occur early in CSVD, the latter typically in periventricular WM (PVWM) - the least perfused brain region. Accounting for vascular risk factors (VRF) and amyloid status in cognitively normal older subjects, we assessed the relationship between Trail-making test (TMT) performance and MRI measures preceding WM lesions: arterial spin labeling (ASL)-derived cerebral blood flow (CBF) and diffusion tensor imaging (DTI) indices in normal-appearing WM (NAWM) and normal-appearing PVWM (NAPVWM).
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA.
Background: Cerebral small vessel disease (CSVD) is the most prevalent cause of vascular cognitive impairment. Executive function impairment and white matter (WM) lesions occur early in CSVD, the latter typically in periventricular WM (PVWM) - the least perfused brain region. Accounting for vascular risk factors (VRF) and amyloid status in cognitively normal older subjects, we assessed the relationship between Trail-making test (TMT) performance and MRI measures preceding WM lesions: arterial spin labeling (ASL)-derived cerebral blood flow (CBF) and diffusion tensor imaging (DTI) indices in normal-appearing WM (NAWM) and normal-appearing PVWM (NAPVWM).
View Article and Find Full Text PDFNat Commun
January 2025
Oxford Molecular Diagnostics Centre, Department of Oncology, University of Oxford, Oxford, UK.
The analysis of circulating tumour DNA (ctDNA) through minimally invasive liquid biopsies is promising for early multi-cancer detection and monitoring minimal residual disease. Most existing methods focus on targeted deep sequencing, but few integrate multiple data modalities. Here, we develop a methodology for ctDNA detection using deep (80x) whole-genome TET-Assisted Pyridine Borane Sequencing (TAPS), a less destructive approach than bisulphite sequencing, which permits the simultaneous analysis of genomic and methylomic data.
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