نتایج جستجو برای: acute toxicity tests
تعداد نتایج: 914815 فیلتر نتایج به سال:
Objective(s): Nanomaterials, especially silver Nanoparticles (Ag-NPs), are employed in an increasing number of commercial products. This has led to an ever growing exposure of human beings to this substance. The first purpose of the Nano Committee of Food and Drug Administration of The Islamic Republic of Iran (IFDA) is developing guidelines to assess and approve commerci...
teucrium polium l. (tp) is widely used in traditional medicine of many countries including iran. there are various reports about pharmacological properties of tp such as calcium antagonist, anti- ulcer, anti – diabetic. there are a few reports about possible toxicological effects of this plant. in the present study we designed to evaluate the subchronic toxicity of teucrium polium total extract...
objective(s) ocimum basilicum l. is widely used in folk medicine of many countries including iran. both o. basilicum and its oil extract have received considerable attention for their potential medicinal properties, but there are a few reports about possible toxicity of this plant. therefore, in the present study, acute and subchronic toxicity of o. basilicum hydroalcohlic extract have been eva...
Acute systemic toxicity testing provides the basis for hazard labeling and risk management of chemicals. A number of international efforts have been directed at identifying non-animal alternatives for in vivo acute systemic toxicity tests. A September 2015 workshop, Alternative Approaches for Identifying Acute Systemic Toxicity: Moving from Research to Regulatory Testing, reviewed the state-of-...
At present, the acute toxicity of chemicals to fish is most commonly estimated by means of a short-term test on juvenile or adult animals (OECD TG 203). Although, over the last few years, the numbers used have been reduced due to the implementation of the Three Rs (Reduction, Refinement and Replacement), significant numbers of fish are still used in acute toxicity tests. With the introduction o...
Aquatic toxicity tests with substances that are poorly soluble in water have been conducted using different methods, and estimates of toxicity have varied accordingly. The present study illustrates differences in toxicity values resulting from variation in test designs and solution preparation methods, and offers guidance on the best way to conduct these tests. Consequences for environmental ri...
Introduction: In Iranian traditional medicine, Asparagus persicus has been used for treating rheumatic pain and inflammation. The aim of this study was to evaluate the analgesic and anti-inflammatory as well as acute toxicity effects of Asparagus persicus root essential oil (APEO) in male mice. Materials and Methods: Male adult mice were used. In pain assessment tests (writhing, tail-flick, and...
background previous studies have shown that shallomin, one of the active constituents of persian shallot, has a broad range of antimicrobial properties. objectives the safety of shallomin must be established before it can be used in clinical applications. therefore, the aim of the present study was to evaluate the acute toxic effects of shallomin and to estimate its lethal dose low (ldlo) value...
The purposes of acute toxicity testing are to obtain information on the biologic activity of a chemical and gain insight into its mechanism of action. The information on acute systemic toxicity generated by the test is used in hazard identification and risk management in the context of production, handling, and use of chemicals. The LD50 value, defined as the statistically derived dose that, wh...
the toxicity of 7 herbicides to the three cyanobacteria was tested in this work. the results indicated that: (1) there was a highly significant relationship between dried weight or chlorophyll-a and od680nm for tested cyanobacteria; (2) the toxicity of the tested herbicides with the order from high to low was: photosynthesis-inhibiting > accase inhibitor > protox inhibiting herbicides; (3) the ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید