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Tau exhibits change in both spatial extent and density of pathology along the Alzheimer's disease (AD) spectrum with each aspect contributing to the overall burden of pathological tau. Nevertheless, studies using Tau PET have measured either magnitude using standardized uptake value ratios (SUVRs) or extent using number of Tau+ regions. We hypothesized that combining these two dimensions into a single measure of Magnitude and eXtent, Tau-MaX, would provide improved quantification of global tau burden as well as allowing for a region-agnostic measure of global tau burden that does not require a pre-specified region of interest (ROI) or meta-ROI.
View Article and Find Full Text PDFPortable six-channel laser speckle system for simultaneous measurement of cerebral blood flow and volume with potential applications in characterization of brain injury.
Neurophotonics
January 2025
California Institute of Technology, Department of Electrical Engineering, Pasadena, California, United States.
Significance: Cerebral blood flow (CBF) and cerebral blood volume (CBV) are key metrics for regional cerebrovascular monitoring. Simultaneous, non-invasive measurement of CBF and CBV at different brain locations would advance cerebrovascular monitoring and pave the way for brain injury detection as current brain injury diagnostic methods are often constrained by high costs, limited sensitivity, and reliance on subjective symptom reporting.
Aim: We aim to develop a multi-channel non-invasive optical system for measuring CBF and CBV at different regions of the brain simultaneously with a cost-effective, reliable, and scalable system capable of detecting potential differences in CBF and CBV across different regions of the brain.
Mobilization of subcutaneous fascia contributes to the vascularization and function of acellular adipose matrix via formation of vascular matrix complex.
Mater Today Bio
February 2025
The Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, China.
Regenerative biomaterials are commonly used for soft-tissue repair in both pre-clinical and clinical settings, but their effectiveness is often limited by poor regenerative outcomes and volume loss. Efficient vascularization is crucial for the long-term survival and function of these biomaterials in vivo. Despite numerous pro-vascularization strategies developed over the past decades, the fundamental mechanisms of vascularization in regenerative biomaterials remain largely unexplored.
View Article and Find Full Text PDFThe temporal relationship between mitochondrial quality and renal tissue recovery following ischemia-reperfusion injury.
Heliyon
January 2025
School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, Tamil Nadu, India.
Background: Growing evidence indicates that disruptions in mitochondrial quality management contribute to the development of acute kidney injury (AKI), incomplete or maladaptive kidney repair, and chronic kidney disease. However, the temporal dynamics of mitochondrial quality control alterations in relation to renal injury and its recovery remain poorly understood and are addressed in this manuscript.
Method: ology: Male Wistar rats (n = 60) were subjected to varying durations of ischemia and reperfusion.
Clinical Significance of the Peripheral Blood Neutrophil-to-Lymphocyte Ratio in Predicting Chemotherapy Outcomes for Small Cell Lung Cancer.
Cancer Manag Res
January 2025
Department of Respiratory and Critical Care Medicine, Fuyang People's Hospital, Fuyang, 236000, People's Republic of China.
Objective: This study aims to assess the clinical significance of the peripheral blood neutrophil-to-lymphocyte ratio (NLR) in predicting chemotherapy outcomes for patients with small cell lung cancer (SCLC).
Methods: A cohort of 44 patients diagnosed with SCLC between January 2021 to June 2022 at Fuyang People's Hospital was selected for analysis. All patients in this group received a first-line platinum-based doublet chemotherapy regimen.
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