نتایج جستجو برای: acute toxicity

تعداد نتایج: 598490  

ژورنال: بوم شناسی آبزیان 2016

The potential entry of nanomaterials into the water ecosystems increased following their increasing use. In addition to the direct effects of nanomaterials on aquatic organisms, they also affect the toxicity of other pollutants on aquatic organisms. This study assessed the presence of titanium dioxide nanoparticles (nTiO2) in water on acute toxicity of silver nanoparticles (AgNPs) on zebra fish...

Journal: :Environmental science 2022

This systematic study includes physical–chemical characterisation of nanomaterials, arsenic adsorption assays, mechanism proposal, and acute toxicity assays with Daphnia magna .

2014
Chakra P Chaulagain

The majority of patients affected with nitrofurantoin pulmonary toxicity are elderly women [1]. The proposed mechanism of toxicity is either idiosyncratic oxydant-mediated tissue injury by nitrofurantoin metabolites causing depletion of cellular glutathione (chronic form) or by immunological response induced by nitrofurantoin metabolites acting as heptanes and resulting a hypersensitivity react...

2015
Qun Zhao Min Yang Yanping Deng Haitao Yu Linlin Wang Fukang Teng Kenka Cho Hongmei Ma Peng Wu Xue Li Wanying Wu Xuan Liu Feng Xu Baohong Jiang De-An Guo Ge Zhang

Our previous study indicated that the combination of salvianolic acid B (SalB) and ginsenoside Rg1 (Rg1), the main components of Salvia miltiorrhizae and Panax notoginseng, improves myocardium structure and ventricular function in rats with ischemia/reperfusion injury. The present study aimed to determine the safety of the combined SalB and Rg1 (SalB-Rg1) in mice. The safety of SalB-Rg1 was eva...

Journal: :International Journal of Traditional Medicine and Applications 2019

2017
Nimish B. Vyas Barnett A. Rattner

Avian risk assessments for rodenticides are often driven by the results of standardized acute oral toxicity tests without regards to a toxicant’s mode of action and time course of adverse effects. First generation anticoagulant rodenticides (FGARs) generally require multiple feedings over several days to achieve a threshold concentration in tissue and cause adverse effects. This exposure regime...

Journal: :Environmental Health Perspectives 1980
Paul M. Mehrle Foster L. Mayer

Hazard assessment of chemicals to aquatic organisms involves the use of many toxicity tests. Acute toxicity tests, embryo-larval toxicity tests, and chronic toxicity tests that measure survival, growth, and reproductive effects now provide the most relative utility for evaluation of potential chemical hazards to aquatic life. Physiological, biochemical, and histological measurements have a low ...

Ali Zaree Mahmudabadi , Seyed Reza Khatibi, Asma Jafari sani, Masoomeh Masoomi Karimi, Moslem Jafari Sani,

Background: Cadmium is one of the most toxic heavy metals in our environment having a very strong ability to accumulate in body organs, especially in kidney. The present study was done to determine the genotoxicity and cytotoxicity in kidneys of rats exposed to cadmium. Methods: Male rats (n=30), kept in standard conditions were used in this study. The animals were randomly divided into 2 group...

Objective: The plantCassia fistula L. (Caesalpiniaceae) is traditionally used to treat heart diseases, abdominal pain and fever. The present study was aimed to investigate the toxic effects acute and sub-acute administration of ethanol extract of C. fistula fruit (CFE) in male Wistar rats. Materials and Methods: In acute toxicity, the effects of a single oral dose (1000, 3000 and 5000 mg/kg) of...

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