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Improved phosphorus MRSI acquisition through compressed sensing acceleration combined with low-rank reconstruction.
MAGMA
December 2024
Department of Radiology and Medical Informatics, Faculty of Medicine, University of Geneva, Geneva, Switzerland.
Objectives: Phosphorus-31 magnetic resonance spectroscopic imaging (P-MRSI) is a non-invasive tool for assessing cellular high-energy metabolism in-vivo. However, its acquisition suffers from a low sensitivity, which necessitates large voxel sizes or multiple averages to achieve an acceptable signal-to-noise ratio (SNR), resulting in long scan times.
Materials And Methods: To overcome these limitations, we propose an acquisition and reconstruction scheme for FID-MRSI sequences.
Metabolomic Profile Modification in the Cerebellum of Mice Repeatedly Exposed to Khat and Treated with β-Lactamase Inhibitor, Clavulanic Acid.
Metabolites
December 2024
Department of Pharmaceutics, College of Pharmacy, University of Hafr Al Batin, Hafr Al Batin 39524, Saudi Arabia.
Background/objectives: Catha edulis, commonly known as khat, is used for its psychoactive effects and is considered a natural amphetamine. The current study investigated the metabolomic profile in the cerebellum of mice after repeated exposure to khat and evaluated the effects of clavulanic acid on the metabolomic profile in the cerebellum in khat-treated mice.
Methods: Male C67BL/6 mice that were 6-9 weeks old were recruited and divided into three groups: the control group was treated with 0.
Circadian Influences on Brain Lipid Metabolism and Neurodegenerative Diseases.
Metabolites
December 2024
Department of Foundations of Medicine, New York University Grossman Long Island School of Medicine, Mineola, NY 11501, USA.
Circadian rhythms are intrinsic, 24 h cycles that regulate key physiological, mental, and behavioral processes, including sleep-wake cycles, hormone secretion, and metabolism. These rhythms are controlled by the brain's suprachiasmatic nucleus, which synchronizes with environmental signals, such as light and temperature, and consequently maintains alignment with the day-night cycle. Molecular feedback loops, driven by core circadian "clock genes", such as Clock, Bmal1, Per, and Cry, are essential for rhythmic gene expression; disruptions in these feedback loops are associated with various health issues.
View Article and Find Full Text PDFTranscriptome Analysis Reveals Norathyriol Prolongs the Lifespan via Regulating Metabolism in .
Metabolites
December 2024
State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China.
Background: Aging and age-related diseases are closely linked to an imbalance in energy supply and demand, a condition that can potentially be mitigated through various interventions, including the use of naturally occurring molecules. Norathyriol (NL), a tetrahydroxyxanthone compound, is prevalent in mango fruit and medicinal plants. While studies have indicated that NL may influence metabolism, its effects on aging have not been extensively explored.
View Article and Find Full Text PDFThe Mitochondrial Blueprint: Unlocking Secondary Metabolite Production.
Metabolites
December 2024
Department of Medical Instrumental Analysis, Zunyi Medical University, Zunyi 563099, China.
Mitochondrial metabolism plays a pivotal role in regulating the synthesis of secondary metabolites, which are crucial for the survival and adaptation of organisms. These metabolites are synthesized during specific growth stages or in response to environmental stress, reflecting the organism's ability to adapt to changing conditions. Mitochondria, while primarily known for their role in energy production, directly regulate secondary metabolite biosynthesis by providing essential precursor molecules, energy, and reducing equivalents necessary for metabolic reactions.
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