Results 51 to 60 of about 156,055 (260)

Molecular abundances in OMC-1: The chemical composition of interstellar molecular clouds and the influence of massive star formation [PDF]

, 1987
We present here an investigation of the chemical composition of the various regions in the core of the Orion molecular cloud (OMC-1) based on results from the Caltech Owens Valley Radio Observatory (OVRO) millimeter-wave spectral line survey (Sutton et ...
Blake, Geoffrey A., Masson, C. R., Phillips, T. G., Sutton, E. C.   +3 more
core   +1 more source

N-acetylcysteine serves as substrate of 3-mercaptopyruvate sulfurtransferase and stimulates sulfide metabolism in colon cancer cells [PDF]

, 2019
Hydrogen sulfide (H2S) is an endogenously produced signaling molecule. The enzymes 3-mercaptopyruvate sulfurtransferase (MST), partly localized in mitochondria, and the inner mitochondrial membrane-associated sulfide:quinone oxidoreductase (SQR), besides
Forte, Elena, Giardina, Giorgio, Giuffrè, Alessandro, Malagrinò, Francesca, Masi, Letizia, Paulini, Giulia, Tomé, Catarina S, Vicente, João B, Zuhra, Karim   +8 more
core   +2 more sources

Reactive Species-Activatable AIEgens for Biomedical Applications

Biosensors, 2022
Precision medicine requires highly sensitive and specific diagnostic strategies with high spatiotemporal resolution. Accurate detection and monitoring of endogenously generated biomarkers at the very early disease stage is of extensive importance for ...
Xiaoying Kang, Yue Li, Shuai Yin, Wen Li, Ji Qi   +4 more
doaj   +1 more source

The Reactive Species Interactome in Red Blood Cells: Oxidants, Antioxidants, and Molecular Targets

Antioxidants, 2023
Beyond their established role as oxygen carriers, red blood cells have recently been found to contribute to systemic NO and sulfide metabolism and act as potent circulating antioxidant cells. Emerging evidence indicates that reactive species derived from
Miriam M. Cortese-Krott
doaj   +1 more source

Geminivirus C2 protein represses genes involved in sulphur assimilation and this effect can be counteracted by jasmonate treatment [PDF]

, 2012
Geminiviruses are plant viruses that infect a broad range of crops and cause extensive losses worldwide, having an important economic impact. C2, a multifunctional pathogenicity factor encoded by geminiviruses, has been recently shown to suppress the ...
Balzergue, Sandrine, Bejarano, Eduardo R., García Domínguez, Irene, Huguet, Stéphanie, Lozano Durán, Rosa, Romero González, Luis Carlos   +5 more
core   +3 more sources

Reaction Mechanisms of H₂S Oxidation by Naphthoquinones

Antioxidants
1,4-naphthoquinones (NQs) catalytically oxidize H2S to per- and polysufides and sulfoxides, reduce oxygen to superoxide and hydrogen peroxide, and can form NQ-SH adducts through Michael addition.
Kenneth R. Olson, Kasey J. Clear, Tsuyoshi Takata, Yan Gao, Zhilin Ma, Ella Pfaff, Anthony Travlos, Jennifer Luu, Katherine Wilson, Zachary Joseph, Ian Kyle, Stephen M. Kasko, Prentiss Jones Jr, Jon Fukuto, Ming Xian, Gang Wu, Karl D. Straub   +16 more
doaj   +1 more source

Photochemistry of Furyl- and Thienyldiazomethanes: Spectroscopic Characterization of Triplet 3-Thienylcarbene [PDF]

, 2012
Photolysis (λ \u3e 543 nm) of 3-thienyldiazomethane (1), matrix isolated in Ar or N2 at 10 K, yields triplet 3-thienylcarbene (13) and α-thial-methylenecyclopropene (9). Carbene 13 was characterized by IR, UV/vis, and EPR spectroscopy. The conformational
Albers R., Albers R., Aycard J.-P., Baird M. S., Birney D. M., Bolman P. S. H., Brian Bennett, Bucher G., Caroline R. Pharr, Dunning T. H., Dunning T. H., Fontecave M., Grote D., Herges R., Hoffman R. V., Hoffman R. V., Hutton R. S., Hutton R. S., Kaiser R. I., Katritzky A. R., Khasanova T., Khasanova T., Khasanova T., Kirmse W., Laura A. Kopff, LeBlanc B. F., LeBlanc B. F., Matzinger S., McClintock S. P., McKee M. L., McMahon R. J., McMahon R. J., McMahon R. J., Moss R. A., Moss R. A., Moss R. A., Nakatani K., Neese F., Nikitina A., Nikitina A. F., Osaka I., Pan W., Perepichka I. F., Perrotta R. R., Plattner D. A., Platz M. S., Purvis G. D., Robert J. McMahon, Roth H. D., Sander W., Sander W., Schreiner P. R., Scott A. Reid, Seburg R. A., Seburg R. A., Shirtcliff L. D., Sinnecker S., Sun J., Sun Y., Tomioka H., Wang J., Wang J., Wasserman E., Woodcock H. L., Woodcock H. L., Woon D. E., Young B. S., Zuev P. S.   +67 more
core   +3 more sources

Metabolic Reprogramming of Sulfur in Hepatocellular Carcinoma and Sulfane Sulfur-Triggered Anti-Cancer Strategy

Frontiers in Pharmacology, 2020
Metabolic reprogramming is a cancer hallmark. Although the reprogramming of central carbon has been well documented, the role of sulfur metabolism has been largely overlooked.
Ximing Zhang, Mianrong Chen, Xiang Ni, Yingying Wang, Xue Zheng, Hui Zhang, Shi Xu, Chun-tao Yang   +7 more
doaj   +1 more source

Effects of inhibiting antioxidant pathways on cellular hydrogen sulfide and polysulfide metabolism [PDF]

, 2019
Elaborate antioxidant pathways have evolved to minimize the threat of excessive reactive oxygen species (ROS) and to regulate ROS as signaling entities.
Gao, Yan, Olson, Kenneth R.
core   +1 more source

Recombination Reactions as a Possible Mechanism of Mass-Independent Fractionation of Sulfur Isotopes in the Archean Atmosphere of Earth [PDF]

, 2017
A hierarchy of isotopically substituted recombination reactions is formulated for production of sulfur allotropes in the anoxic atmosphere of Archean Earth.
Babikov, Dmitri
core   +2 more sources