Results 71 to 80 of about 53,897 (283)

Mutagenicity assessment of aerosols in emissions from wood combustion [PDF]

, 2011
Mestrado em Estudos AmbientaisPolycyclic aromatic hydrocarbon (PAH) extracts of PM2.5 collected from combustion of seven wood species and briquettes were tested for mutagenic activities using Ames test with Salmonella typhimurium TA98 and TA100.
Binh Ngan Vu
core   +1 more source

Environmental Mutagens

Science Diliman, 1983
There is a unifying aspect in the storage, expression and transmission of the information that defines the spatial and temporal patterns of life, from the simplest virus to man.
Clara Lim-Sylianco
doaj  

No effect of meat, meat cooking preferences, meat mutagens or heme iron on lung cancer risk in the prostate, lung, colorectal and ovarian cancer screening trial

International Journal of Cancer, 2011
Recent epidemiological studies have suggested that red and processed meat may increase the risk of lung cancer. Possible underlying mechanisms include mutagens produced during high‐temperature cooking or preservation, or formed endogenously from heme ...
Nataša Tasevska, A. Cross, K. Dodd, R. Ziegler, N. Caporaso, R. Sinha   +5 more
semanticscholar   +1 more source

Benchmark Response (BMR) Values for In Vivo Mutagenicity Endpoints

Environmental and Molecular Mutagenesis, EarlyView.
ABSTRACT The benchmark dose (BMD) approach constitutes the most effective and pragmatic strategy for the derivation of a point of departure (PoD) for comparative potency analysis, risk assessment, and regulatory decision‐making. There is considerable controversy regarding the most appropriate benchmark response (BMR) for genotoxicity endpoints.
Paul A. White, Guangchao Chen, Nikolai Chepelev, Madison A. Bell, Lauren R. Gallant, George E. Johnson, Andreas Zeller, Marc A. Beal, Alexandra S. Long   +8 more
wiley   +1 more source

Periodic shock-emission from acoustically driven cavitation clouds:a source of the subharmonic signal [PDF]

, 2014
Single clouds of cavitation bubbles, driven by 254 kHz focused ultrasound at pressure amplitudes in the range of 0.48–1.22 MPa, have been observed via high-speed shadowgraphic imaging at 1 × 10⁶ frames per second.
Cochran, Sandy, Cuschieri, Alfred, Gerold, Bjoern, Johnston, Keith, Postema, Michiel, Prentice, Paul, Tapia-Siles, Cecilia   +6 more
core   +5 more sources

EFFECT OF ETHYL METHANESULFONATE (EMS) AND N-NITROSE-N´-ETHYL UREA (ENU) ON CALLUS GROWTH OF COMMON BEAN [PDF]

Journal of Central European Agriculture, 2005
Infl uence of ethyl methanesulfonate (EMS) and N-nitrose-N´-ethyl urea (ENU) mutagenic treatments was investigated on three time sub-cultured calli obtained from leaf petiole explants of 7-day old sterile plants.
Diana Lilova SVETLEVA, Paola CRINÓ
doaj  

Ethyl Methanesulfonate (EMS) Mutagen Toxicity-Induced DNA Damage, Cytosine Methylation Alteration, and iPBS-Retrotransposon Polymorphisms in Wheat (Triticum aestivum L.)

Agronomy, 2023
The use of mutagens in plant breeding is used to create new germplasm, increase agricultural yield, quality, and resistance to diseases and pests. Mutagens are physical or chemical factors that can alter the DNA or RNA structure of an organism, causing ...
Aras Türkoğlu, Kamil Haliloğlu, Metin Tosun, Henryk Bujak, Barış Eren, Fatih Demirel, Piotr Szulc, Halit Karagöz, Marek Selwet, Güller Özkan, Gniewko Niedbała   +10 more
doaj   +1 more source

Environmental mutagens may be implicated in the emergence of drug-resistant microorganisms.

FEMS Microbiology Letters, 2011
The emergence of drug-resistant microorganisms is an important medical and social problem. Drug-resistant microorganisms are thought to grow selectively in the presence of antibiotics. Most clinically isolated drug-resistant microorganisms have mutations
Emiko Miyahara, Makiko Nishie, Shota Takumi, H. Miyanohara, J. Nishi, K. Yoshiie, H. Oda, M. Takeuchi, M. Komatsu, Kohji Aoyama, M. Horiuchi, T. Takeuchi   +11 more
semanticscholar   +1 more source

An Enhanced Metabolization Protocol for In Vitro Genotoxicity Assessment of N‐Nitrosamines in Mammalian Cells

Environmental and Molecular Mutagenesis, EarlyView.
ABSTRACT N‐Nitrosamines (NAs) are probable human carcinogens and were detected as impurities in pharmaceuticals, which led to a concern for human health. NAs require metabolic activation before they become mutagenic, and not all NAs are mutagenic since their reactivity is related to their structure.
M. E. Geijer, A. M. Gernaat, N. Moelijker, I. Brandsma, G. Hendriks   +4 more
wiley   +1 more source

Analysis of induced genetic variability for morphological and floral characters with male sterility in sesame (Sesamum indicum L.)

Electronic Journal of Plant Breeding, 2018
Male sterility can be useful to obtain high yielding sesame hybrids with reduced cost and labour. It can be induced artificially into the released cultivars by using chemical mutagens.
M. Imran, M. Dash, T. R. Das and, M. Kabi   +3 more
doaj   +1 more source