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SIRT2 and ALDH1A1 as critical enzymes for astrocytic GABA production in Alzheimer's disease.
Mol Neurodegener
January 2025
Center for Cognition and Sociality, Life Science Institute (LSI), Institute for Basic Science (IBS), Daejeon, Republic of Korea.
Background: Alzheimer's Disease (AD) is a neurodegenerative disease with drastically altered astrocytic metabolism. Astrocytic GABA and HO are associated with memory impairment in AD and synthesized through the Monoamine Oxidase B (MAOB)-mediated multi-step degradation of putrescine. However, the enzymes downstream to MAOB in this pathway remain unidentified.
View Article and Find Full Text PDFDiscovery and characterization of an FAD-dependent glucose 6-dehydrogenase (74 characters including spaces).
J Biol Chem
January 2025
Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan. Electronic address:
Many patients with diabetes use self-measurement devices for blood glucose to understand their blood glucose levels. Most of these devices utilize FAD-dependent glucose dehydrogenase (FAD-GDH) to determine blood glucose levels. For this purpose, FAD-GDHs specifically oxidizing glucose among the sugars present in blood is required.
View Article and Find Full Text PDFIn vivo imaging of mitochondrial function in normal, glaucoma suspect, and glaucoma eyes.
PLoS One
January 2025
Department of Ophthalmology, University of Washington, Seattle, WA, United States of America.
To investigate macula and optic nerve head (ONH) mitochondrial metabolic activity using flavoprotein fluorescence (FPF) in normal, glaucoma suspect (GS), and open-angle glaucoma (OAG) eyes we performed a cross-sectional, observational study of FPF in normal, GS, and OAG eyes. The macula and ONH of each eye was scanned and analyzed with a commercially available FPF measuring device (OcuMet Beacon, OcuSciences Inc., Ann Arbor, MI).
View Article and Find Full Text PDFAntisense mediated blockade of Dickkopf 1 attenuates tumor survival, metastases and bone damage in experimental osteosarcoma.
Sci Rep
January 2025
Department of Medical Physiology, Texas A&M College of Medicine, Bryan, TX, 77807, USA.
Osteosarcoma (OS) is the most common primary bone malignancy. The canonical Wnt inhibitor Dickkopf-1 (Dkk-1) has been implicated in bone destruction, tumor survival and metastases during OS. We examined the role of Dkk-1 in OS disease progression and explored strategies for targeting its activity.
View Article and Find Full Text PDFDifferential Mitochondrial Redox Responses to the Inhibition of NAD Salvage Pathway of Triple Negative Breast Cancer Cells.
Cancers (Basel)
December 2024
Britton Chance Laboratory of Redox Imaging, Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
: Cancer cells rely on metabolic reprogramming that is supported by altered mitochondrial redox status and an increased demand for NAD. Over expression of Nampt, the rate-limiting enzyme of the NAD biosynthesis salvage pathway, is common in breast cancer cells, and more so in triple negative breast cancer (TNBC) cells. Targeting the salvage pathway has been pursued for cancer therapy.
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