نتایج جستجو برای: noael

تعداد نتایج: 385  

2014
Satyakumar Vidyashankar O.S. Thiyagarajan R.Sandeep Varma L.M. Sharath Kumar Uddagiri Venkanna Babu Pralhad Sadashiv Patki

Bisphenol A (BPA) safety aspects on human health are debated extensively for long time. In the present study, we have studied the toxicity induced by BPA at no observed adverse effect level (NOAEL) using HepG2 cells. We report that BPA at 100 nM induced cytotoxicity to HepG2 cells as determined by MTT assay at 0-72 h. The toxicity was result of reduced oxygen consumption and reduced mitochondri...

Journal: :Frontiers in bioscience 2010
Hans-Guenter Neumann

Carcinogenic aromatic amines are widespread and need to be regulated. Genotoxic and non-genotoxic effects are both necessary for tumor development. The common mode of action includes metabolic activation, the reaction of metabolites with nucleic acids and cellular macromolecules as well as toxic effects. The dose-response relationship of irreversible DNA damage is linear down to background conc...

2012
Jong-Kyu Kim Hae-Won Cho Jeong-Hee Han Sung-Bae Lee Yong-Hyun Chung Kyung-Taek Rim Jeong-Sun Yang

OBJECTIVES This study was conducted in order to obtain information concerning the health hazards that may result from a 13 week inhalation exposure of n-pentane in Sprague-Dawley rats. METHODS This study was conducted in accordance with the Organization for Economic Co-operation and Development (OECD) guidelines for the testing of chemicals No. 413 'Subchronic inhalation toxicity: 90-day stud...

2015
Muhammed Majeed Kalyanam Nagabhushanam Sankaran Natarajan Sarang Bani Anjali Pandey Suresh Kumar Karri

The present work investigated repeated dose and reproductive toxicity of Calebin A in Wistar rats. A study for assessing the mutagenic potential of Calebin A through an AMES test is also described. Calebin A was orally administered to groups of 10 male and/or 10 female Wistar rats each, assigned to three dose levels (20, 50 and 100 mg/kg/body weight) once daily for 90 consecutive days. None of ...

Journal: :Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2016
Abraham Nyska Shim-Mo Hayashi Mihoko Koyanagi Jeffrey P Davis Micheal P Jokinen Yuval Ramot Robert R Maronpot

alpha-Glycosyl isoquercitrin (AGIQ) is highly absorbable and has been shown to possess antioxidative properties. Based on a favorable safety profile, it has been confirmed as generally recognized as safe (GRAS) compound by the FDA. Nevertheless, safety and toxicity information for AGIQ is still sparse. Therefore, the aim of this study was to test the safety and toxicokinetics of AGIQ in a 90-da...

Journal: :Molecules 2018
Jia Choi Su-Jung Ryu Kui-Jin Kim Hyung-Min Kim Hee-Chul Chung Boo-Yong Lee

Gelidium elegans extract (GEE) is derived from a red alga from the Asia-Pacific region, which has antioxidant, anti-adipogenic, and anti-hyperglycemic effects. However, detailed studies of the toxicology of GEE have not been performed. We evaluated the single oral dose toxicity of GEE in male and female Sprague-Dawley (CD) rats. GEE did not cause deaths or have toxic effects at dosages of 5000 ...

2014
Thomas M. Gray David Steup Linda G. Roberts James P. O'Callaghan Gary Hoffman Ceinwen A. Schreiner Charles R. Clark

Vapor condensates of baseline gasoline (BGVC), or gasoline-blended with methyl tertiary butyl ether (G/MTBE), ethyl t-butyl ether (G/ETBE), t-amyl methyl ether (G/TAME), diisopropyl ether (G/DIPE), ethanol (G/EtOH), or t-butyl alcohol (G/TBA) were evaluated for reproductive toxicity in rats at target concentrations of 2000, 10,000, or 20,000mg/m(3), 6h/day, 7days/week. BGVC and G/MTBE were asse...

Journal: :International immunopharmacology 2004
Zuhair Mohammad Hassan S Nasser Ostad Bagher Minaee Jamshid Narenjkar Ebrahim Azizi Ebrahim Zabihi Neishabouri

Insecticides are important candidates for immunotoxicology tests in order to assess the 'No Observable Adverse Effect Level' (NOAEL). Propoxure (PPX), as a carbamate household insecticide, has been used for several decades around the world in agriculture. However, there has been no clear investigation on its immunotoxic potentials. In this study, as Tier I of immunotoxicological screening tests...

2014
M. Modarresi L. Hosseinzadeh N. Nematy Z.M. Siavash-Haghighi K. Ghanbari

Stachys lavandulifolia (S. lavandulifolia) is a plant that has been widely used as an herbal medicine in Iran. Unfortunately, despite the prevalent medicinal uses of the plant, there are no reports on the possible toxic effects of S. lavandulifolia. In the present study the potential toxicity of S. lavandulifolia after acute and subchronic administration in rats was evaluated. Rats were orally ...

Journal: :Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2013
Daniel L Moran Palma Ann Marone Mark R Bauter Madhu G Soni

Apoaequorin, a calcium-binding protein originally isolated from jellyfish is available commercially as a dietary supplement. The objective of the present study was to investigate potential adverse effects, if any, of Apoaequorin, a recombinant protein preparation, in rats following subchronic administration. For this study, Sprague-Dawley (Hsd:SD) rats (10/sex/group) were administered via oral ...

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