Search Results

9 results

  1. TSRC, Tob. Sci. Res. Conf., 2019, 73, abstr. 091

    Tobacco-specific nitrosamines in the mainstream smoke of commercial little cigars

    EDWARDS S.H.(1); HASSINK M.(1); TAYLOR K.M.(1); WATSON C.(2); KUKLENYIK P.(2); WANG R.(2); CHEN P.(2); VALENTIN-BLASINI L.(2); KIMBRELL B.(2)
    (1) US Food and Drug Administration (FDA), Silver Spring, MD, USA; (2) Centers for Disease Control and Prevention, Atlanta, GA, USA
    Cigars are among the broad variety of deemed tobacco products that have been less extensively studied and characterized than cigarettes. Small sheet-wrapped cigars, often called little cigars, are a subcategory of cigars that are similar to...
  2. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups (Workshop), STW 06

    Biomarkers of tobacco smoke exposure in the U.S. population: result and resources from the National Health and Nutrition Examination Survey (NHANES)

    BLOUNT B.C.
    Tobacco and Volatiles Branch, Division of Laboratory Sciences, Centers for Disease Control and Prevention, Atlanta, GA, U.S.A.
    Tobacco smoke exposure is the primary cause of disease and premature death in the U.S. population and a major contributor to negative health impact globally. Tobacco smoke harms the health of active users and non-users with indirect exposure....
  3. TSRC, Tob. Sci. Res. Conf., 2018, 72, abstr. 046

    The quantitation of volatile nitrosamines in mainstream tobacco smoke by gas chromatography-tandem mass spectrometry (GC-MS/MS) using direct sample bag collection

    COWAN E.A.; WINKELJOHN W.R.; LISKO J.G.; VALENTIN-BLASINI L.
    Centers for Disease Control and Prevention, Atlanta, GA, USA
    Volatile nitrosamines (VNAs) are classified as group 2A and 2B carcinogens in humans by the International Agency for Research on Cancer (IARC), have been associated with increased incidences of carcinogenesis and have been linked to lipid...
  4. TSRC, Tob. Sci. Res. Conf., 2018, 72, abstr. 048

    Survey of nicotine, NNK, NNN, pH and physical properties of little cigars in the US market place

    LIU Youbang(1); HASSINK M.D.(1); TAYLOR K.M.(1); WATSON C.(2); CHAFIN D.(2); LAWLER T.(2); VALENTIN-BLASINI L.(2); KIMBRALL B.(2)
    (1) U.S. Food and Drug Administration, Silver Spring, MD, USA; (2) Centers for Disease Control and Prevention, Atlanta, GA, USA
    In May 2016, the jurisdiction of the Federal Food Drug and Cosmetic Act was extended to include all tobacco products, including cigars. Because limited information exists on the chemistry of cigar filler and smoke, 60 brands of popular little cigars...
  5. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 07

    Direct single puff GC-MS analysis of electronic cigarettes and the effect of interpuff interval on relative nicotine delivery

    LISKO J.G.(1); PEREZ J.J.(1); VALENTIN-BLASINI L.(1); WATSON C.H.(1); HOLMBERG S.L.(2); LEE G.E.(3)
    (1) US Centers for Disease Control and Prevention, Atlanta, GA, USA; (2) Oak Ridge Institute for Science and Education, Oak Ridge, TN, USA; (3) Battelle Memorial Institute, Columbus, OH, USA
    As electronic cigarettes (e-cigarettes) have become more popular, research labs have begun to propose standardized vaping protocols to produce machine-generated aerosols from e-cigarette products. Investigations have largely focused on the effects of...
  6. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, IG 01 ; CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, IG 01

    Association mapping in a collection of tobacco reference cultivars. Step One: Variability of smoke constituents

    JULIO E.(1); VERRON T.(2); CAHOURS X.(2); DORLHAC de BORNE F.(1); COLARD S.(2)
    (1) SEITA, Imperial Tobacco Group, Bergerac, France; (2) SEITA, Imperial Tobacco Group, Fleury-les-Aubrais, France
    Recent developments of sequencing technologies and computational methods have given the opportunity to detect natural variation underlying complex traits in crops. For this purpose, association mapping can be used to identify the link between tobacco...
  7. CORESTA Congress, Quebec, 2014, Agronomy/Phytopathology Groups, APPOST 03

    Agrobacterium T-DNA in Nicotiana tomentosiformis and other Nicotiana species

    CHEN K.(1); DORLHAC DE BORNE F.(2); SZEGEDI E.(3); OTTEN L.(1)
    (1) Department of Molecular Mechanisms of Phenotypic Plasticity, Institut de Biologie Moléculaire des Plantes du C.N.R.S., Strasbourg, France; (2) National Agricultural Research and Innovation Centre (NARIC), Research Institute for Viticulture and Enology, Experimental Station of Kecskemét, Hungary; (3) Imperial Tobacco Group, Institut du Tabac, Bergerac, France
    Agrobacterium rhizogenes induces growth of aberrant roots with bacterial T-DNA; some roots can spontaneously regenerate into plants carrying T-DNA fragments. T-DNAs contain genes that are expressed in plants which normally lead to root growth and to...
  8. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 01

    Stalk position effect on harmful and potentially harmful cigarette smoke constituents in Burley tobacco: a case study

    VERRIER J-L.(1); DESTRUHAUT S.(2); COLARD S.(3)
    (1) Imperial Tobacco Group, Institut du Tabac, Bergerac, France; (2) Imperial Tobacco Group, SEITA, Fleury-les-Aubrais, France; (3) Imperial Tobacco Ltd, Bristol, U.K.
    Cured leaf chemistry varies sharply according to stalk positions and variations of smoke yields of harmful and potentially harmful constituents (HPHCs) are also expected. To quantitatively assess the effects on HPHC yields, Burley leaves of the...