نتایج جستجو برای: micronucleus test

تعداد نتایج: 813654  

Journal: :International journal of toxicology 2008
Bruce K Bernard Eri Watanabe Terutaka Kodama Shoji Tsubuku Akira Otabe Madoka Nakajima Shoji Masumori Sawako Shimada Jin Tanaka Takeshi Masuyama

A series of studies was performed to evaluate the safety of dihydrocapsiate (4-hydroxy-3-methoxybenzyl 8-methylnonanoate; CAS no. 205687-03-2). This study evaluated the potential genotoxicity of this compound using a variety of in vitro and in vivo test systems, including bacterial reverse mutation test, chromosomal aberration test, micronucleus test, gene mutation assay with transgenic rats, a...

2013
Young-Shin Chung Michael Lee

Erythritol is a sugar alcohol that is widely used as a natural sugar substitute. Thus, the safety of its usage is very important. In the present study, short-term genotoxicity assays were conducted to evaluate the potential genotoxic effects of erythritol. According to the OECD test guidelines, the maximum test dose was 5,000 μg/plate in bacterial reverse mutation tests, 5,000 μg/ml in cell-bas...

Background & Objective: Micronucleus assay of buccal mucosa cells is a simple bio- monitoring method for diagnosing the genetic damages of toxic agents. The aim was to study the genotox...

Journal: :The Journal of Cell Biology 1970
Kuruganti G. Murti David M. Prescott

The presence of RNA in the micronucleus of Tetrahymena pyriformis was detected by electron microscope radioautography after incubation with tritiated precursors. The specificity of RNA labeling was shown by ribonuclease digestion. The period of appearance of labeled RNA in the micronucleus is approximately coincident with the DNA synthesis period for the micronucleus. Pulse-chase experiments sh...

Journal: :Toxicology in vitro : an international journal published in association with BIBRA 2013
K Scott J Saul I Crooks O M Camacho D Dillon C Meredith

In vitro genotoxicity assays are often used to compare tobacco smoke particulate matter (PM) from different cigarettes. The quantitative aspect of the comparisons requires appropriate statistical methods and replication levels, to support the interpretation in terms of power and significance. This paper recommends a uniform statistical analysis for the Ames test, mouse lymphoma mammalian cell m...

2014
Claudia BOLOGNESI Silvia CIRILLO

Pollution of the aquatic environment is an ever-growing problem, as waters are the ultimate sink for the large number of xenobiotics from multiple sources. DNA damaging agents have a significant ecological relevance since they are implicated in many pathological processes and exert effects beyond that of individual being active through following generations. A large number of methods have been ...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2006
Micheline Kirsch-Volders Raluca Antonina Mateuca Mathieu Roelants Annie Tremp Errol Zeiger Stefano Bonassi Nina Holland Wushou Peter Chang Peter Vande Aka Marlies Deboeck Lode Godderis Vincent Haufroid Hitoshi Ishikawa Blanca Laffon Ricardo Marcos Lucia Migliore Hannu Norppa Joao Paulo Teixeira Andrea Zijno Michael Fenech

The influence of genetic polymorphisms in GSTM1 and GSTT1 genes on micronucleus frequencies in human peripheral blood lymphocytes was assessed through a pooled analysis of data from seven laboratories that did biomonitoring studies using the in vivo cytokinesis-block micronucleus assay. A total of 301 nonoccupationally exposed individuals (207 males and 94 females) and 343 workers (237 males an...

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