The activity of succinate dehydrogenase (SDH) in lymphocytes of peripheral blood of AKR mice was measured in response to intraperitoneal injection of epinephrine hydrochloride at a dose of 1 mg/kg. SDH reactions to epinephrine were of two types: increase or decrease of activity. The type of reaction depended on the initial enzyme level. The decrease of epinephrine activation of SDH in lymphocytes was found to be correlated with the age of animals and hematological manifestations of hemoblastosis they developed. The percentage of cells with a high SDH activity in hemoblastotic animals was correlated with the count of prolymphocytes and blast cells in peripheral blood.
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mSphere
December 2024
Department of Chemical and Biomolecular Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska, USA.
During aerobic growth, relies on acetate overflow metabolism, a process where glucose is incompletely oxidized to acetate, for its bioenergetic needs. Acetate is not immediately captured as a carbon source and is excreted as waste by cells. The underlying factors governing acetate overflow in have not been identified.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
January 2025
Division of Abdominal Tumor, Department of Medical Oncology, Cancer Center and State Key Laboratory of Biological Therapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Introduction: Succinate dehydrogenase subunit B (SDHB)-mutated paragangliomas (PGLs) are rare neuroendocrine tumors characterized by increased malignancy, readily metastasizing, and poorer prognosis. Here we report a case of SDHB-mutated metastatic PGL, wherein the patient showed significant tumor shrinkage and complete symptom remission following chemotherapy. We aim to contribute additional evidence to the existing knowledge associated with SDHB-mutated PGLs.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensor Technology and Health, Central China Normal University, Wuhan 430079, PR China. Electronic address:
Botrytis cinerea populations resistant to succinate dehydrogenase inhibitors (SDHIs) represent a major problem for the sustainable development of modern agriculture. In the present study, the resistance mechanism of B_P225F and B_H272R mutations in B. cinerea SDH (BcSDH) resistant to SDHIs fungicides, including boscalid (BOS), penflufen (PEN), pydiflumetofen (PYD), fluopyram (FLU), and benzovindiflupyr (BEN), was uncovered.
View Article and Find Full Text PDFJ Med Chem
January 2025
State Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, China.
Though succinate dehydrogenase inhibitors (SDHIs) are quite successful in the modern agrochemical industry, the Fungicide Resistance Action Committee has classified the resistance risk as "medium to high". Structural analysis reveals that these antifungal chemotypes are highly conserved with amides as a consistent feature. This chemical factor may be a potential factor for the ever-increasing resistance risk.
View Article and Find Full Text PDFBMC Musculoskelet Disord
December 2024
Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University School of Medicine, 301 Yanchang Rd, Shanghai, 200072, People's Republic of China.
Background: The study aimed to explore whether Miya (MY), a kind of Clostridium butyricum, regulated osteoarthritis (OA) progression through adenosine 5'-monophosphate-activated protein kinase (AMPK) pathway.
Methods: The OA rats were orally given MY daily for 4 weeks and were intramuscularly injected with AMPK inhibitor once a week for 4 weeks. Hematoxylin eosin (HE) staining was used to observe the histological morphology of the knee joint.
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