Results 31 to 40 of about 13,188 (213)

A genome-wide portrait of pervasive drug contaminants

open access: yesScientific Reports, 2021
Using a validated yeast chemogenomic platform, we characterized the genome-wide effects of several pharmaceutical contaminants, including three N-nitrosamines (NDMA, NDEA and NMBA), two related compounds (DMF and 4NQO) and several of their metabolites. A
Joseph Uche Ogbede   +2 more
doaj   +1 more source

Mechanisms of Cancer Induction by Tobacco-Specific NNK and NNN [PDF]

open access: yes, 2014
Tobacco use is a major public health problem worldwide. Tobacco-related cancers cause millions of deaths annually. Although several tobacco agents play a role in the development of tumors, the potent effects of 4-(methylnitrosamino)-1-(3-pyridyl)-1 ...
Seng, Seyha, Xue, Jiaping, Yang, Suping
core   +2 more sources

Mechanistic Insight into the Degradation of Nitrosamines via Aqueous-Phase UV Photolysis or a UV-Based Advanced Oxidation Process: Quantum Mechanical Calculations

open access: yesMolecules, 2018
Nitrosamines are a group of carcinogenic chemicals that are present in aquatic environments that result from byproducts of industrial processes and disinfection products.
Daisuke Minakata, Erica Coscarelli
doaj   +1 more source

Analysis of N-nitrosodiprophylamines Carcinogenic Compound in Meat-Processing Using Headspace-Single Drop Microextraction-Gas Chromatography-Flame Ionization Detector (HS-SDME-GC-FID) [PDF]

open access: yes, 2015
Analysis of N-nitrosodiprophylamines carcinogenic compound in processed meat especially hamburger and kebab had occured by HS-SDME-GC-FID technique. The results were obtained determining the optimum pH was 4, the optimum stirring speed was 6 scale, and ...
Sucipto, T. H. (Teguh)   +2 more
core   +3 more sources

Estimated Exposure Risks from Carcinogenic Nitrosamines in Urban Airborne Particulate Matter [PDF]

open access: yes, 2015
Organic nitrogen (ON) compounds are present in atmospheric particulate matter (PM), but compared to their inorganic, hydrocarbon and oxygenated counterparts, they are difficult to characterize due to their complex chemical composition. Nitrosamines are a
Alastair C. Lewis   +11 more
core   +2 more sources

Ecotoxicological risk assessment of N-nitrosamines to Selenastrum capricornutum in surface waters: Insights into toxicity mechanisms and environmental Implications

open access: yesEcotoxicology and Environmental Safety
N-nitrosamines, one of the most common nitrogen-containing organic compounds in freshwater systems such as rivers or reservoirs, are toxic and carcinogenic to human.
Decai Liu   +7 more
doaj   +1 more source

N–nitrosamines are associated with shorter telomere length

open access: yesScandinavian Journal of Work, Environment & Health, 2011
OBJECTIVES: Telomeres are critical to maintain the integrity of the chromosomes, and telomere abnormalities are important features of carcinogenesis. Telomere length differs among individuals due to genetic and environmental factors.
Heng Li   +4 more
doaj   +1 more source

A Review on the Role of Lactic Acid Bacteria in the Formation and Reduction of Volatile Nitrosamines in Fermented Sausages

open access: yesFoods, 2023
Nitrosamines are N-nitroso compounds with carcinogenic, mutagenic and teratogenic properties. These compounds could be found at certain levels in fermented sausages. Fermented sausages are considered to be a suitable environment for nitrosamine formation
Selen Sallan   +2 more
doaj   +1 more source

Contaminação de produtos de higiene e cosméticos por n-nitrosaminas Contamination of cosmetics and personal care products by n-nitrosamines

open access: yesQuímica Nova, 2009
N-nitrosamines are carcinogenic compounds that have been found during the last three decades in a variety of consumer products, including cosmetic and personal care products, and their raw materials.
Susanne Rath, Larissa S. Canaes
doaj   +1 more source

Explaining coexistence of nitrogen fixing and non-fixing rhizobia in legume-rhizobia mutualism using mathematical modeling [PDF]

open access: yes, 2017
In the mutualism established between legumes and soil bacteria known as rhizobia, bacteria from soil infect plants roots and reproduce inside root nodules where they fix atmospheric N2 for plant nutrition, receiving carbohydrates in exchange.
Knopoff, Damián Alejandro   +4 more
core   +2 more sources

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