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TagGen: Diffusion-based generative model for cardiac MR tagging super resolution.
Magn Reson Med
January 2025
Department of Radiology, University of Missouri, Columbia, Missouri, USA.
Purpose: The aim of the work is to develop a cascaded diffusion-based super-resolution model for low-resolution (LR) MR tagging acquisitions, which is integrated with parallel imaging to achieve highly accelerated MR tagging while enhancing the tag grid quality of low-resolution images.
Methods: We introduced TagGen, a diffusion-based conditional generative model that uses low-resolution MR tagging images as guidance to generate corresponding high-resolution tagging images. The model was developed on 50 patients with long-axis-view, high-resolution tagging acquisitions.
Spatiotemporal and genetic cell lineage tracing of endodermal organogenesis at single-cell resolution.
Cell
January 2025
State Key Laboratory of Female Fertility Promotion, Department of Medical Genetics, School of Basic Medical Sciences, Peking University, Beijing 100191, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China. Electronic address:
During early mammalian development, the endoderm germ layer forms the foundation of the respiratory and digestive systems through complex patterning. This intricate process, guided by a series of cell fate decisions, remains only partially understood. Our study introduces innovative genetic tracing codes for 14 distinct endodermal regions using novel mouse strains.
View Article and Find Full Text PDFImmune-cell signatures of persistent inflammation, immunosuppression, and catabolism syndrome after sepsis.
Med
January 2025
Department of Anesthesiology, Zhongshan Hospital Fudan University, Shanghai 200032, China; Laboratory of Perioperative Stress and Protection, Shanghai 200032, China. Electronic address:
Background: Management of persistent inflammation, immunosuppression, and catabolism syndrome (PICS) after sepsis remains challenging for patients in the intensive care unit, experiencing poor quality of life and death. However, immune-cell signatures in patients with PICS after sepsis remain unclear.
Methods: We determined immune-cell signatures of PICS after sepsis at single-cell resolution.
Epigenetics in Neurodegenerative Diseases.
Subcell Biochem
January 2025
Faculty of Medicine and Faculty of Life Sciences, Institute of Biomedical Sciences (ICB), Universidad Andres Bello, Santiago, Chile.
Healthy brain functioning requires a continuous fine-tuning of gene expression, involving changes in the epigenetic landscape and 3D chromatin organization. Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), and frontotemporal dementia (FTD) are three multifactorial neurodegenerative diseases (NDDs) that are partially explained by genetics (gene mutations and genetic risk factors) and influenced by non-genetic factors (i.e.
View Article and Find Full Text PDFMeasuring HSD17β13 protein turnover in mouse liver with DO metabolic labeling and hybrid LC-MS.
Bioanalysis
January 2025
Janssen Research & Development, Spring House, PA, USA.
Background: Metabolic labeling with heavy water (DO) followed by LC-MS has become a powerful tool for studying protein turnover . Developing a quantitative method to measure partially labeled low-abundance proteins poses many challenges because heavy isotopomers of peptides, especially their changes through deuterium labeling, are difficult to detect.
Methods: A workflow that coupled immunocapture and LC-high-resolution MS to determine the synthesis rate of HSD17β13 protein in mouse liver was presented.
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