Results 11 to 20 of about 32,058 (214)

Characterization of T-Cell Responses to SMX and SMX-NO in Co-Trimoxazole Hypersensitivity Patients Expressing HLA-B*13:01

open access: yesFrontiers in Immunology, 2021
HLA-B*13:01-positive patients in Thailand can develop frequent co-trimoxazole hypersensitivity reactions. This study aimed to characterize drug-specific T cells from three co-trimoxazole hypersensitive patients presenting with either Stevens-Johnson ...
Jirawat Pratoomwun   +14 more
doaj   +1 more source

Kinetic study on the reaction of sodium nitrite with neurotransmitters secreted in the stomach

open access: yesScientific Reports, 2023
Nitroso-compounds are potentially mutagenic and carcinogenic compounds due to their ability to alkylate DNA bases. One of the most common sources of human exposure to nitroso-compounds is their formation in the acidic environment of the stomach by the ...
Mario González-Jiménez   +6 more
doaj   +1 more source

SUBSTITUTED 4-NITROSOPYRAZOLES IN THE DIELS-ALDER REACTION

open access: yesSiberian Journal of Life Sciences and Agriculture, 2021
Background. 4-Nitrosopyrazoles have become widespread in the pharmaceutical industry and in chemistry due to their high reactivity and biological activity. However, the interaction of 3,5-substituted 4-nitroso-1H-pyrazoles with diene hydrocarbons has not
Darya S. Volkova   +4 more
doaj   +1 more source

Carcinogenic effects of N-nitroso compounds in the environment

open access: yesEnvironment Conservation Journal, 2020
N-nitroso compounds (NOC) are produced by the acid catalyzed reaction of nitrite with certain nitrogen compounds. The gastrointestinal tract (GI) is the main site for the formation of reactive nitrogen species (RNS).
Divya Jain   +3 more
doaj   +1 more source

A new type of convergent paired electrochemical synthesis of sulfonamides under green and catalyst-free conditions

open access: yesScientific Reports, 2023
Our main goal in this work is to synthesize valuable sulfonamide compounds according to the principles of green chemistry and also to present a unique convergent paired mechanism for their synthesis.
Pouria Patoghi   +2 more
doaj   +1 more source

Correlation of precancerous lesion incidence with duodenogastric reflux and N-nitroso compound duration at reflux and antireflux stomach surgery: An experimental study [PDF]

open access: yesVojnosanitetski Pregled, 2018
Background/Aim. Duodenogastric reflux occurs after gastroenteroanastomosis, with or without resection of the stomach (Billroth I, Billroth II), after vagotomy and pyloroplasty, gastroduodenostomy as well as in conservatively treated patients.
Zlatić Aleksandar   +7 more
doaj   +1 more source

Induction of Colonic Aberrant Crypts in Mice by Feeding Apparent N-Nitroso Compounds Derived From Hot Dogs [PDF]

open access: yes, 2012
Nitrite-preserved meats (e.g., hot dogs) may help cause colon cancer because they contain N-nitroso compounds. We tested whether purified hot-dog-derived total apparent N-nitroso compounds (ANC) could induce colonic aberrant crypts, which are putative ...
Caderni G   +15 more
core   +5 more sources

Mechanisms linking colorectal cancer to the consumption of (processed) red meat : a review [PDF]

open access: yes, 2015
Colorectal cancer (CRC) is the third most commonly diagnosed cancer in the world. The vast majority of CRC cases have been linked to environmental causes rather than to heritable genetic changes.
De Smet, Stefaan   +3 more
core   +2 more sources

Heme iron from meat and risk of colorectal cancer: a meta-analysis and a review of the mechanisms involved [PDF]

open access: yes, 2011
Red meat and processed meat intake is associated with a risk of colorectal cancer, a major cause of death in affluent countries. Epidemiological and experimental evidence supports the hypothesis that heme iron present in meat promotes colorectal cancer ...
Bingham   +24 more
core   +4 more sources

Detection of reactive oxygen and nitrogen species by electron paramagnetic resonance (EPR) technique [PDF]

open access: yes, 2017
During the last decade there has been growing interest in physical-chemical oxidation processes and the behavior of free radicals in living systems. Radicals are known as intermediate species in a variety of biochemical reactions.
Gurer-Orhan, H., Saso, L., Suzen, S.
core   +5 more sources

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