Results 11 to 20 of about 18,203 (158)

An update on the current status and prospects of nitrosation pathways and possible root causes of nitrosamine formation in various pharmaceuticals

open access: yesSaudi Pharmaceutical Journal, 2023
Over the last two years, global regulatory authorities have raised safety concerns on nitrosamine contamination in several drug classes, including angiotensin II receptor antagonists, histamine-2 receptor antagonists, antimicrobial agents, and ...
Wisut Wichitnithad   +3 more
doaj   +1 more source

Effect of Menthol on SFRP1 Expression Level and HIF-1α/VEGF Signaling in Diethylnitrosamine-induced Kidney Damage in Male Mice [PDF]

open access: yesJournal of Ardabil University of Medical Sciences, 2023
Background: Many scientific Researches have shown that diethylnitrosamine, which is used to induce liver carcinoma, has destructive effects on the kidney. Menthol is a monoterpene type with antioxidant, anti-inflammatory, and anti-cancer effects.
Samaneh Alijanian   +2 more
doaj  

Modeling the Impact of Excipients Selection on Nitrosamine Formation towards Risk Mitigation

open access: yesPharmaceutics, 2023
Risk control for nitrosamine impurities in drug products is currently a major challenge in the industry. Nitrosamines can form during drug product manufacturing and storage through the reaction of nitrites with amine-containing APIs or impurities.
Alberto Berardi   +2 more
doaj   +1 more source

Effect of celery powder as an alternative nitrite source on some quality properties and nitrosamine formation in sucuk [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2023
This study aimed to determine the effects of celery powder (nitrate converted to nitrite) and cooking time on the formation of nitrosamine in sucuk. The microbiological and physicochemical properties were also investigated.
Zeynep Feyza YILMAZ ORAL
doaj   +1 more source

A Genetic Toxicology Study of the Rapid Detection of Nitrosamine Compounds by the rpsL Gene Mutation Assay

open access: yesFoods, 2022
In a rpsL gene mutation experiment, the mutagenicity of the nitrosamine compounds N-diethylnitrosamine (NDEA) and N-dipropylnitrosamine (NDPA) was investigated at the cellular level, as well as with PCR (polymerase chain reaction) and RCA (rolling-circle
Xueling Peng   +2 more
doaj   +1 more source

Study of the Decomposition of N-Nitrosonornicotine (NNN) under Inert and Oxidative Atmospheres: Effect of the Addition of SBA-15 and MCM-41

open access: yesApplied Sciences, 2022
Nowadays, the use of tobacco biomass as an energy source is being valued. Therefore, it is important to know the processes that take place during combustion and pyrolysis, as well as the substances that are formed.
Javier Asensio   +4 more
doaj   +1 more source

N-nitrosamine Impurities in Medicines: Toxicity, Formation Pathways, Methods of Determination, and Limits (Review)

open access: yesРазработка и регистрация лекарственных средств, 2020
Introduction. N-nitrosamine compounds are potent genotoxic agents in animal species and some are classified as probable human carcinogens. This group of genotoxic impurities was found in drugs such as angiotensin II receptor blockers, histamine H1 ...
P. P. Shchetinin   +2 more
doaj   +1 more source

Development and Validation for Quantification of 7-Nitroso Impurity in Sitagliptin by Ultraperformance Liquid Chromatography with Triple Quadrupole Mass Spectrometry

open access: yesMolecules, 2022
The purpose of this research study was to develop an analytical method for the quantification of 7-nitroso-3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4] triazolo [4,3-a] pyrazine (7-nitroso impurity), which is a potential genotoxic impurity.
Hari Naga Prasada Reddy Chittireddy   +7 more
doaj   +1 more source

Effect of pentoxifylline on kidney damage induced by nitrosamine in male rats

open access: yesResearch in Pharmaceutical Sciences, 2019
Nitrosamines are well-known carcinogenic agents. Humans are exposed to nitrosamines in various ways, the most important of which is the diet. Pentoxifylline is a xanthine derivative, which is used as a drug that inhibits inflammatory factors, reduces ...
Cyrus Jalili   +3 more
doaj   +1 more source

Nitrosodimethylamine impurities in metformin drug products: Physician insight

open access: yesJournal of Diabetology, 2021
Metformin is a high-dose antidiabetic drug and most widely used first-line therapeutic agent for the management of type 2 diabetes mellitus (T2DM).
Chetan Doshi   +4 more
doaj   +1 more source

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