Results 31 to 40 of about 125,120 (264)

Detecting de novo Hepatic Ketogenesis Using Hyperpolarized [2-13C] Pyruvate

Frontiers in Physiology, 2022
The role of ketones in metabolic health has progressed over the past two decades, moving from what was perceived as a simple byproduct of fatty acid oxidation to a central player in a multiplicity of disease states. Previous work with hyperpolarized (HP)
Mukundan Ragavan, Marc A. McLeod, Anna Rushin, Matthew E. Merritt   +3 more
doaj   +1 more source

Pirin Regulates Pyruvate Catabolism by Interacting with the Pyruvate Dehydrogenase E1 Subunit and Modulating Pyruvate Dehydrogenase Activity [PDF]

Journal of Bacteriology, 2007
ABSTRACT The protein pirin, which is involved in a variety of biological processes, is conserved from prokaryotic microorganisms, fungi, and plants to mammals. It acts as a transcriptional cofactor or an apoptosis-related protein in mammals and is involved in seed germination and seedling development in plants.
Po-Chi, Soo, Yu-Tze, Horng, Meng-Jiun, Lai, Jun-Rong, Wei, Shang-Chen, Hsieh, Yung-Lin, Chang, Yu-Huan, Tsai, Hsin-Chih, Lai   +7 more
openaire   +2 more sources

Intracellular acetyl phosphate modulates Escherichia coli pyruvate metabolism

Acta Biochimica et Biophysica Sinica
Lysine acetylation has been shown to be an abundant and vital post-translational modification (PTM) that utilizes acetyl phosphate (AcP) as one of the acetyl group donors in bacteria. The pyruvate dehydrogenase (PDH) complex catalyzes the conversion from
Zhang Ling, Shi Hongmei, Liu Zixiang, Gu Jing, Deng Jiaoyu   +4 more
doaj   +1 more source

Pathogenic mechanisms underlying X-linked Charcot-Marie-Tooth neuropathy (CMTX6) in patients with a pyruvate dehydrogenase kinase 3 mutation

Neurobiology of Disease, 2016
Charcot-Marie-Tooth disease (CMT) is the most common inherited peripheral neuropathy. An X-linked form of CMT (CMTX6) is caused by a missense mutation (R158H) in the pyruvate dehydrogenase kinase isoenzyme 3 (PDK3) gene.
Gonzalo Perez-Siles, Carolyn Ly, Adrienne Grant, Alexander P. Drew, Eppie M. Yiu, Monique M. Ryan, David T. Chuang, Shih-Chia Tso, Garth A. Nicholson, Marina L. Kennerson   +9 more
doaj   +1 more source

Pyruvate Dehydrogenase Kinase 1 inhibition mediated oxidative phosphorylation enhancement in cartilage promotes osteoarthritis progression

BMC Musculoskeletal Disorders, 2023
Osteoarthritis (OA) is a common disease characterized by cartilage degradation. Growing evidence showed that glucose metabolism impacts joint homeostasis and an imbalance between glycolysis and oxidative phosphorylation (OXPHOS) may exacerbate OA ...
Xian Yang, Qingsong Jiang, Tiankuo Luan, Chao Yu, Zhibo Liu, Ting Wang, Jingyuan Wan, Jiayu Huang, Ke Li   +8 more
doaj   +1 more source

PDK4 dictates metabolic resistance to ferroptosis by suppressing pyruvate oxidation and fatty acid synthesis

Cell Reports, 2021
Summary: Although induction of ferroptosis, an iron-dependent form of non-apoptotic cell death, has emerged as an anticancer strategy, the metabolic basis of ferroptotic death remains poorly elucidated.
Xinxin Song, Jiao Liu, Feimei Kuang, Xin Chen, Herbert J. Zeh, III, Rui Kang, Guido Kroemer, Yangchun Xie, Daolin Tang   +8 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

A Mitochondrial Expatriate: Nuclear Pyruvate Dehydrogenase [PDF]

Cell, 2014
The pyruvate dehydrogenase complex (PDC) catalyzes the conversion of pyruvate into acetyl-CoA, a critical step in metabolism. Sutendra et al. now demonstrate that PDC can translocate from the mitochondria to the nucleus to provide acetyl-CoA necessary for histone acetylation, suggesting a new pathway for mitochondrial-nuclear communication.
de Boer, Vincent C. J., Houten, Sander M.   +1 more
openaire   +3 more sources

CCDC80 suppresses high‐grade serous ovarian cancer migration via negative regulation of B7‐H3

Molecular Oncology, EarlyView.
PAX8 is a lineage‐specific master regulator of transcription in high‐grade serous ovarian cancer (HGSC) progression. We show for the first time that PAX8 facilitates proliferation and metastasis by repressing the cell autonomous tumor suppressor CCDC80 and inducing B7‐H3 expression.
Aya Saleh, Nitzan Medina‐Itzhaki, Milena Chekov, Eden Gal‐Swisa, Roba Gabesh‐Wahabi, Inbar Savyon, Inna Naroditsky, Hilary A. Kenny, Basem Fares, Lina Korsensky, Einav Girsh, Liron Berger, Ruth Perets   +12 more
wiley   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source