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112 articles for “exposure level”
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Research ArticleOpen accessIn the abstractT-2 Toxin Regulated Ganoderma lucidum Induced Cytokine ReleaseKazem Ahmadi, Majid RiazipourThe water-soluble extract of Ganoderma lucidum (Reishi) has been used as immunomodulator to stimulate spleen cells proliferation and cytokine expression. It has also been shown that at some level of exposure, T-2 toxin typically act as immunosuppressive agent and can increase disease susceptibility. The aim of this study was to investigate the effect of T-2 toxin on cytokine production by … …American Journal of Immunology, Vol. 4, Issue 1 · 31 Mar 2008 · 7,541 accessesView PDFCite
Research ArticleOpen accessIn the abstractExogenous Re-infection by Multiple Exposures to Mycobacterium tuberculosis Contributes to Subsequent Development of Active TuberculosisDiane J. Ordway, Miguel Viveiros, Fernando A. Ventura et al.The majority of tuberculosis (TB) exists in the world’s poorest countries, where costly biosafety level three facilities for containment of infectious TB patients and diagnostic facilities are not affordable. Health care workers (HCWs), in countries with high burdens of tuberculosis (TB) are at risk of nosocomially acquired TB, as there are increased numbers of cases of TB on open hospital … …American Journal of Immunology, Vol. 1, Issue 1 · 31 Mar 2005 · 6,971 accessesView PDFCite
Research ArticleOpen accessIn the abstractProgressive LDL Reduction to Very Low Levels Improves Dimeric Nitric Oxide Synthase, Nitric Oxide Bioavailability and Reduces Peroxynitrite in Endothelial Cells during HyperglycemiaR. Preston Mason, Hazem Dawoud, Samuel C.R. Sherratt et al.Circulating levels of glucose and LDL influence Endothelial Cell (EC) function in a highly interactive manner as evidenced by nitric oxide production and coupling of endothelial Nitric Oxide Synthase (eNOS) dimer. Here, we report on the status of eNOS function in Human Umbilical Vein Endothelial Cells (HUVECs) cultured under normo- and hyperglycemic (250 mg/dL) condition followed by exposure to increasing … …American Journal of Pharmacology and Toxicology, Vol. 14, Issue 1 · 2 May 2019 · 8,363 accessesView PDFCite
Research ArticleOpen accessIn the abstractProtection of Human Albumin against UV-C Irradiation by Natural AntioxidantsAntonio Zuorro, Roberto LavecchiaThe use of UV-C light as a means to inactivate pathogens in biological media containing blood components or plasma derivatives has recently been rediscovered. Although highly effective, these treatments may have deleterious effects on plasma proteins such as albumin, fibrinogen and immunoglobulins. Here we investigate the use of three natural antioxidants, gallic acid, nicotinic acid and ascorbic acid, as potential … …American Journal of Biochemistry and Biotechnology, Vol. 14, Issue 4 · 23 Oct 2018 · 9,925 accessesView PDFCite
Research ArticleOpen accessIn the abstractToxicological Consequences of Di-N-Butyl-Phthalate (DBP) on Health of Nile Tilapia FingerlingsEhsan H. Abu Zeid, Al Shimaa A. KhalilPhthalic Acid Esters (PAEs) are mainly used in the plastics industry as adhesives and plasticizers. Di-n-Butyl Phthalate (DBP) is one of the important members in the family of PAEs was listed as environmental priority pollutants by the US Environmental Protection Agency. The objective of this study was to evaluate the toxicological consequences in Nile Tilapia Oreochromis niloticus L. fingerlings, exposed … …American Journal of Animal and Veterinary Sciences, Vol. 9, Issue 4 · 24 Dec 2014 · 8,469 accessesView PDFCite
Research ArticleOpen accessIn the abstractCOPPER STRESS ON CELLULAR CONTENTS AND FATTY ACID PROFILES IN CHLORELLA SPECIESG. Sibi, T.S. Anuraag, Geeta BafilaHigher photosynthetic efficiency and biomass production with rapid growth makes microalgae as potential candidates over other energy crops in many applications. Heavy metals influence the production of secondary metabolites and lipd content of microalgae in particular. A study was conducted using six Chlorella species under heavy metal exposure to evaluate the copper stress on biomass, cellular and lipid contents. Preliminary … …OnLine Journal of Biological Sciences, Vol. 14, Issue 3 · 20 Aug 2014 · 7,791 accessesView PDFCite
Research ArticleOpen accessIn the abstractReview Article; Duodeno-Gastro-Esophageal Reflux Combined and IsolatedAyman Osman Nasr, William Robb, Thomas Neil WalshBarrett’s esophagus is the chief risk factor for esophageal adenocarcinoma. Reflux of gastric acid has long been related to the development of esophagitis and Barrett’s esophagus, but the role of duodenal contents is controversial. We review the literature on the role of duodenal contents in the development of esophagitis, Barrett’s esophagus and adenocarcinoma in addition to the role of acid … …Current Research in Medicine, Vol. 4, Issue 1 · 8 May 2013 · 7,834 accessesView PDFCite
Research ArticleOpen accessIn the abstractDihydrobiopterin (BH2): Key Determinant in Influencing Arginine Mediated Endothelial Tolerance and DysfunctionSrinidi Mohan, Harsh Patel, Jorge Bolinaga et al.The redox-sensitive tetrahydrobiopterin (BH4) is an essential cofactor that is required by endothelial Nitric Oxide Synthase (eNOS) for L-arginine (ARG) mediated Nitric Oxide (NO) generation. Oxidation of BH4 causes cofactor insufficiency and uncoupling of eNOS, resulting in product switching from NO to O2⋅– production. Here we tested the hypothesis that eNOS uncoupling is not simply a consequence of BH4 insufficiency, … …American Journal of Biochemistry and Biotechnology, Vol. 8, Issue 2 · 22 Jun 2012 · 8,354 accessesView PDFCite
Research ArticleOpen accessIn the abstractDetermination of Heavy Metals and Other Elements in Artisanal Gold Mining SoilsS. Girigisu, I. G.E. Ibeanu, D. J. Adeyemo, S. OkohProblem statement: The possible exposure of heavy elements to life as a result of artisanal gold mining activities can be of great concern because of its associated effect on health. Approach: Soil samples from the artisanal gold mining sites of Awwal and Bagega villages in Kebbi and Zamfara states of Nigeria were collected and analyzed for heavy and other elements … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 14 May 2012 · 7,191 accessesView PDFCite
Research ArticleOpen accessIn the abstractApproaches to Learning in First Year University PhysicsRachel Wilson, Steve Georgakis, Manjula SharmaProblem statement: In recent decades, discipline specific ways of thinking and knowing have gained increased recognition in understanding learning. However, there has been little empirical research examining student approaches to learning within specific disciplines or, even more specifically, within different streams of study or in response to different curriculum within a discipline. Approach: The aim of this study was to … …Journal of Social Sciences, Vol. 8, Issue 2 · 25 Feb 2012 · 9,219 accessesView PDFCite