Results 71 to 80 of about 27,815,460 (250)

Application of chromatographic techniques in the analysis of total nitrosamines in water

open access: yesHeliyon, 2020
The use of ozone, chloramine and chlorine dioxide for water treatment results in the formation N-nitrosamines in the treated water. These groups of chemicals and other nitrogen-containing compounds have been described as disinfection by-products (DBPs ...
Abdulrazaq Yahaya   +3 more
doaj   +1 more source

Pharmacokinetic and Pharmacodynamic Interactions Between Anti‐Asthma Drugs and Medicinal Plants: A Comprehensive Review

open access: yesPhytotherapy Research, EarlyView.
ABSTRACT Asthma affects 260–300 million people worldwide. About 20%–35% of patients use medicinal plants with their asthma medication, often without telling their clinicians. Disclosure rates are low; up to 42% of asthma outpatients use herbal products, with no records in their charts.
Emine Kocyigit   +5 more
wiley   +1 more source

N-Nitrosamine Impurities in Ethalfluralin: Determination of an Overlooked Deleterious Source in Pesticides

open access: yesAgriculture, 2023
N-nitrosamines are a class of carcinogenic chemical compound. Considering the large-scale application of agrochemicals globally, the elimination of N-nitrosamines from pesticides should be a priority for manufacturers and regulators. A set of methods was
George P. Balayiannis, Helen Karasali
doaj   +1 more source

Cyanogenic Compounds, Physicochemical Parameters and Metals in Water From Cassava Processing Areas: A Study in the Brazilian Amazon, Using Multivariate Analysis

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT This study evaluated the water quality of artesian wells and effluents generated in cassava processing in a rural area of Bragança, Pará, with emphasis on physicochemical parameters, multielement composition, and cyanogenic compounds. The well water presented specific nonconformities, highlighting pH values below the recommended level and high
Alana Coêlho Maciel   +13 more
wiley   +1 more source

Examining the role of freebase nicotine in the harm reduction potential of oral nicotine pouches versus moist snuff: A randomized crossover trial

open access: yesAddiction, EarlyView.
Abstract Background and aims Oral nicotine pouches (ONPs) contain varying proportions of freebase nicotine (FBN), with higher FBN expected to increase nicotine delivery across the oral mucosa. Because ONPs contain fewer toxicants than moist snuff and may serve as a reduced harm alternative for smokeless tobacco, we compared how the FBN in ONPs affects ...
Brittney Keller‐Hamilton   +10 more
wiley   +1 more source

Formation of n-nitrosamines in drinking water sources: Case studies from Western Australia

open access: yes, 2017
This study investigated the formation of eight N-nitrosamines after laboratory chlorination and chloramination of Western Australian source waters (from protected catchments), which experience periodic cyanobacterial blooms.
Heitz, A.   +11 more
core   +2 more sources

Has Australia lost control of its tobacco and nicotine markets?

open access: yesAddiction, EarlyView.
Abstract Background Australia has adopted two policies that the World Health Organization (WHO) recommends as best practice for tobacco control: it has steeply increased tobacco taxes since 2010 and only allowed access to nicotine vapes for medical use.
Ron Borland   +4 more
wiley   +1 more source

Association of Life's Essential 8 Score With Incident Pancreatic Cancer: A Prospective Cohort Study in Shanghai, China

open access: yesCancer Science, EarlyView.
In this prospective cohort study of 60,556 cancer‐free adults with a median follow‐up of 7.44 years, a higher Life's Essential 8 (LE8) score, reflecting better cardiovascular health, was associated with a lower risk of pancreatic cancer (PC). Each 1‐SD increase in LE8 score was associated with an 18% lower PC risk.
Liping Yi   +8 more
wiley   +1 more source

A case study on N-nitrosamine investigation in a marketed drug: from analytical procedure validation to risk mitigation decision

open access: yesFrontiers in Analytical Science
IntroductionN-nitrosamines, a class of organic compounds recognized for their mutagenic and carcinogenic properties, have been raising major public health concerns following their detection in pharmaceuticals since 2018.
Yue Zhang   +6 more
doaj   +1 more source

Snus, nicotine pouches and cardiovascular disease: Evidence, mechanisms, and the challenge of novel nicotine products

open access: yesJournal of Internal Medicine, EarlyView.
Abstract Conventional Swedish snus is used by millions in Scandinavia and increasingly worldwide, yet its cardiovascular effects remain poorly characterized. The emergence of nicotine pouches—commonly referred to as ‘white snus’ in Sweden—that deliver comparable nicotine without tobacco constituents adds complexity to a heterogeneous landscape and ...
Magnus Olsson   +10 more
wiley   +1 more source

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