نتایج جستجو برای: ray genotoxicity

تعداد نتایج: 307738  

Journal: :Mutagenesis 2001
K Gasiorowski B Brokos K Szyba J Leszek

Fluphenazine, an antipsychotic drug that belongs to the phenothiazine family, reduced the genotoxicity of direct- and indirect-acting mutagens in the Ames test, both in the presence and in the absence of promutagen-activating S9 fraction. In short-term tests on human lymphocytes, the inhibitory effect of fluphenazine on the genotoxicity of standard mutagens was strongest in the cytokinesis-bloc...

Journal: :Environmental toxicology and chemistry 2003
Antonio Quiñones-Rivera Renee R Alexander Martin Alexander

A study was conducted to determine the effect of nonaqueous-phase liquids (NAPLs) on the bioavailability of benzo[a]pyrene (BaP) in soil. Sentry 19 oil and pristane reduced the availability of BaP for assimilation by the earthworm Eisenia fetida and for mutagenicity in a rifampicin-sensitive strain of Pseudomonas putida. As much as 80% of the compound could be rendered unavailable to the worms ...

2012
Daniel Francisco Arencibia-Arrebola Luis Alfredo Rosario-Fernández Yolanda Emilia Suárez-Fernández Alexis Vidal-Novoa Livan Delgado-Roche

The aim of this research was to compare the efficiency of different murine lines for genotoxicity assays. Rats and mice of different murine lines were used. The spontaneous and induced indexes were evaluated according to alkaline comet assay of peripheral blood leukocytes, micronucleus and chromosomic aberration assay of bone marrow cell, and sperm head morphology assay. In most of the evaluate...

Journal: :international journal of marine science and engineering 2012
a. mashinchian moradi h. mozdarani p. alidoust salimi m. alidoust salimi

malathion (s-(1, 2-dicarboethoxyethyl) o, o-dimethyl phosphorodithioate) is one of the organophosphate pesticides comprehensively used in agriculture fields throughout the world. in spite of widely used, little information are available about dna damage in aquatic organisms. therefore, the present study carried out to investigation of dna damage induced by malathion in cyprinus carpio (pisces: ...

2007

The registration of all pharmaceuticals requires a comprehensive safety assessment of their potential to cause direct or indirect genotoxic damage. This article reviews current methods employed for regulatory genotoxicity testing and new techniques developed for early high-throughput screening. A novel in vitro mammalian assay is described which detects all common mechanistic classes of genotox...

2012
Mohammad Tavakoli Ensiyeh Bateni Mansour Rismanchian Mohammadhossein Fathi Ali Doostmohammadi Azim Rabiei Hojat Sadeghi Mahmood Etebari Mina Mirian

BACKGROUND The greater surface of bioactive glass nanoparticles presents an incomparable and promising feature similar to the biological apatite. Nanoparticles improve cellular adhesion, enhance osteoblast proliferation and differentiation, and increase biomineralization for periodontal regeneration and dental implants. Considering the fact that interaction between periodontal cells and bone gr...

The rising global demand for palm oil and its associated products has led to increased numbers of palm oil refineries with its attendant effluent discharge. Many researches have confirmed the ecological disruptive potentiality of Palm Oil Mill Effluent (POME), still further attention has to be directed at POME’s potential genotoxicity. The present study has made physico-chemical and genotoxicit...

Cisplatin is one of the most useful chemotherapeutics which performs its cytotoxic effectvia accumulation of platinum resulting in oxidative stress, and destruction of cell DNA. Thiscould probably cause secondary cancers in healthy tissues. Lipocalin2 (Lcn2) is a protein whichits expression is increased in oxidative stresses. Therefore, the present study was performedto evaluate the protective ...

Despite its various clinical applications, cyclophosphamide (CP), an alkylating chemotherapeutic agent, has demonstrated numerous side effects, including genetic toxicity. This study investigated the protective action of Origanum vulgare L., a powerful antioxidant plant, on the genotoxicity of CP in the mice blood lymphocytes. The mice were pretreated orally with different doses of (50, 100, 20...

2012
Daozhen Chen Qiusha Tang Xiangdong Li Xiaojin Zhou Jia Zang Wen-qun Xue Jing-ying Xiang Cai-qin Guo

BACKGROUND The objective of this study was to evaluate the synthesis and biocompatibility of Fe₃O₄ nanoparticles and investigate their therapeutic effects when combined with magnetic fluid hyperthermia on cultured MCF-7 cancer cells. METHODS Magnetic Fe₃O₄ nanoparticles were prepared using a coprecipitation method. The appearance, structure, phase composition, functional groups, surface charg...

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