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112 results for “exposure level”
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Research ArticleOpen accessIn the abstractBioaccumulation and Tissue Partitioning of Endosulfan by the Red Hybrid TilapiaDwight E. RobinsonThe frequent use of endosulfan in agricultural activity on steep slopes in Jamaica and subsequent contamination of rivers by the residues resulted in a need to assess the levels of bioaccumulation of sub-lethal doses of the insecticide in river fauna using Tilapia fish as a test subject. Bioconcentration of α- and β-endosulfan by the Red Hybrid Tilapia, from 0.0075 mg … …OnLine Journal of Biological Sciences, Vol. 15, Issue 3 · 29 Jun 2015 · 7,060 accessesView PDFCite
Research ArticleOpen accessIn the abstractCytogenetic Analysis among Train Depot Workers Exposed to Total Volatile Organic CompoundsNormah Awang, Siti Adillah Isah, Asmah HamidOccupational exposure to toxic chemicals such as Total Volatile Organic Compounds (TVOC) from diesel engine exhaust implicates genotoxic risk. The objective of this study was to determine the DNA damage among KL Sentral depot workers exposed to TVOC by means of cytogenetic analysis. Data were obtained partially from disseminated questionnaires and buccal cells samples were collected from a total of … …OnLine Journal of Biological Sciences, Vol. 15, Issue 2 · 12 Jun 2015 · 7,443 accessesView PDFCite
EditorialOpen accessIn the abstractImpact of Quantitative Pharmacology on Drug DevelopmentAna Ruiz-Garcia, Kourosh ParivarThesuccess of drug development rests over two well defined pillars, a goodunderstanding of the drug’s clinical pharmacology and the appropriate targetpopulation for whom the clinical use is intended. The label for human prescription drugsrequires a good understanding of the pharmacological effects (pharmacodynamicsor PD) and the mechanism of action of the drug as well as detailed informationof the drug’s Pharmacokinetics (PK): … …American Journal of Pharmacology and Toxicology, Vol. 9, Issue 4 · 24 Apr 2015 · 7,158 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffects of Light Exposure and Nitrogen Source on the Production of Oil from Freshwater and Marine Water MicroalgaeMariam Al Hattab, Abdel GhalyThe biomass yield and oil content of Chlorella saccharophila (freshwater) and Tetraselmis suecica (marine) microalgae were investigated using various nitrogen source (ammonium nitrate, ammonium phosphate, ammonium sulfate and combination of nutrients) at various light durations (9, 16 and 24 h). NaHCO3 was used as the carbon source. The nitrogen concentration, temperature and pH were maintained at 70 mg/L, 22°C and … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 4 · 8 Dec 2014 · 7,265 accessesView PDFCite
Research ArticleOpen accessIn the abstractTUMOR NECROSIS FACTOR-ALPHA AS BIOMARKERS OF EXPOSURE TO INDOOR POLLUTANTS AMONG PRIMARY SCHOOL CHILDREN IN KLANG VALLEYJuliana Jalaludin, Sharifah Nazariah Syed Noh, Nur Faseeha Suhaimi, Abdah Md AkimPoor indoor air quality can be particularly harmful to children and interfere with the growth of their lung function as they spend much of their time indoors. In order to understand the mechanism of exposure in the airways, biomarkers were used as a surrogate for biological responses towards indoor air pollutants. This study aims to investigate the association between indoor … …American Journal of Applied Sciences, Vol. 11, Issue 9 · 15 Aug 2014 · 8,078 accessesView PDFCite
Research ArticleOpen accessIn the abstractNON-CANCER HUMAN HEALTH RISK ASSESSMENT FROM EXPOSURE TO HEAVY METALS IN SURFACE AND GROUNDWATER IN IGUN IJESHA, SOUTHWEST NIGERIAO. O. Ayantobo, J. A. Awomeso, G. O. Oluwasanya et al.Non-cancer hazard index for inhabitants exposed to heavy metals in surface and groundwater of the abandoned metal mine in Igun-Ijesha area were evaluated. A total of thirty-eight water samples were collected from surface and ground water sources in the study area between September 2012 and February 2013 and the concentrations of heavy metals were determined using Atomic Absorption Spectrophotometer. Non-cancer … …American Journal of Environmental Sciences, Vol. 10, Issue 3 · 10 May 2014 · 8,769 accessesView PDFCite
Research ArticleOpen accessIn the abstractInteraction of γ Aminobutyric Acid B Receptors and Electromagnetic Field in the Fear ResponseM. Taherianfard, A. Bahaodini, M. Fazeli, S. Karimi HaghighiOne of the most neurotransmission system consistently linked with fear response is GABAergic system. GABA through GABAB receptor can influence fear response. The aim of the present investigation was to examine the effect of IP injection of baclofen (GABAB agonist) and CGP35348 (GABAB antagonist) along with EMF exposure on frequency of fear response. Fifty adult male rats weighing 180-200 g … …Neuroscience International, Vol. 4, Issue 2 · 1 Apr 2014 · 6,691 accessesView PDFCite
Research ArticleOpen accessIn the abstractEXPOSURE TO SWINE HOUSING DUST MODULATES MACROPHAGE MORPHOLOGY AND FUNCTIONRuth J. Pender, Radiah C. Minor, Steven L. Hurley et al.Swine Confinement Facility (SCF) dust consists of a complex mixture of feed grain particles, bacterial components, organic particulates and gases. When these particles are inhaled they deposit along the respiratory tract and mediate respiratory symptoms and disease in swine farmers and facility workers. Macrophages ingest and eliminate microbes and debris under chronic conditions; however, the role of macrophages in agricultural-related … …American Journal of Immunology, Vol. 10, Issue 1 · 25 Mar 2014 · 7,606 accessesView PDFCite
Research ArticleOpen accessIn the abstractToxicity of Zinc Oxide Nanoparticles in Lung Tissue After Repeated Oral AdministrationAtaollah Shokouhian, Saman Soheili, Saeed Moradhaseli et al.Pathological experiments should be considered following oral administration of ZnO. Effect of different doses of ZnO nanoparticle on LDH in oral method showed significant differences in control group (p<0.05) at high dose. Levels of IgG, TNF-α and IL-6 also elevated after administration of ZnO. The level of GSH decreased significantly. Lung damages included hyperemia and bleeding, atelectasis, light emphysema, pribronchiolitis, … …American Journal of Pharmacology and Toxicology, Vol. 8, Issue 4 · 21 Oct 2013 · 7,703 accessesView PDFCite
Research ArticleOpen accessIn the abstractElectromagnetic Field and Γ Aminobutyric Acid a Receptors Interaction in the Fear ResponseM. Taherianfard, A. Bahaodini, M. Fazeli et al.Freezing behavior is a fearful reaction to specific stimuli, most commonly observed by animals. One of the neurotransmission system most consistently linked with fear response is the GABAergic system, in which GABA through GABAA receptor can influence fear response. The aim of the present investigation was to examine the effect of IP injection of muscimol (GABAA agonist) and bicuculline (GABAA … …Current Research in Psychology, Vol. 4, Issue 1 · 4 Sep 2013 · 7,515 accessesView PDFCite