benzo alpha pyrene and polycyclic aromatic hydrocarbons

... Sciences, Polycyclic Aromatic Hydrocarbons: Evaluation of Sources and Effects (National Academy Press, Washington, DC, 1983) 102 G Grimmer, Ed., Environmental Carcinogens: Polycyclic Aromatic Hydrocarbons: ... Bjørseth and T Ramdahl, Eds., Handbook of Polycyclic Aromatic Hydrocarbons, Vol 2, Emission Sources and Recent Advances in Analytical Chemistry (Dekker, New York, 1985) 104 K E Thrane and A Mikalsen, ... between ocean and atmosphere The amount and composition of terpenes and other biogenic hydrocarbons depend on climatic parameters, for example, temperature and solar radiation, and would change...

Ngày tải lên: 15/03/2014, 20:20

Ngày tải lên: 13/11/2014, 15:58

... Acenaphthene Fluorene Anthracene Fluoranthene Pyrene Benz[b]fluoranthene Benzo[ k]fluoranthene Benzo[ a ]pyrene Indeno[1,2,3-cd ]pyrene Dibenz[a,h]anthracene Benzo[ ghi]perylene Ʃ PAHs SL: sludge; OW: ... Sciences and Technology, Vol 30, No (2014) 36-42 are also persistent and are considered as priority pollutants in the US EPA and EU lists The accumulation of polluted organic compounds and heavy ... degraded TS and VS removals were 15.4% and 18.2% respectively, in the case of (SL + OW) In the case of (SL +OW + Tween 80), CH4 generated was 351 ml/g VS degraded, TS and VS removal were 13.51% and 18.3%...

Ngày tải lên: 24/06/2015, 08:16

... on Surfactant and Doubling Time 154 xvii Chapter Introduction Chapter Introduction 1.1 Research Background Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous in the environment and have been ... of the washing solution, which makes it easy to handle the pollutants (Hinze and Promauro, 1993; Komaromy and von Wandruszka, 1995; Pramauro and Prevot, 1995) The surfactantrich phase, which ... EXTRACTION AND EFFECTS OF SURFACTANT ON BIODEGRADATION OF MODEL POLYCYCLIC AROMATIC HYDROCARBONS LI JINGLIANG (M Eng TIANJIN UNIV) A THESIS SUBMITTED...

Ngày tải lên: 16/09/2015, 17:11

... acknowledged Ambient Air Pollution by Polycyclic Aromatic Hydrocarbons (PAH) Position Paper July 27th 2001 Prepared by the Working Group On Polycyclic Aromatic Hydrocarbons PAH Position Paper July ... [Smith 1996] European National and International standard methods 62 Several standard methods exist and these are summarised in Figure 4: European and National Standard Methods In view of the ... tar [von Volkman 1875] and the isolation by Kennaway and colleagues of pure aromatic hydrocarbons from coal tar and the demonstration of their carcinogenicity in the 1920s and 1930's [Kennaway...

Ngày tải lên: 17/02/2014, 11:20

... 25 °C) 3.2 x 10-10 Dibenzo[a,l ]pyrene DBalP Dibenzo[def,p]chrysene 2,3:4,5-Dibenzopyrene 3,4:8,9-Dibenzopyrene 4,5,6,7-Dibenzopyrene 1,2:9,10-Dibenzopyrene 1,2:3,4-Dibenzpyrene Molecular formula: ... Phenanthrene Benzo[ a]anthracene Benzo[ c]phenanthrene Chrysene Fluoranthene Pyrene Benzo[ a ]pyrene Benzo[ e ]pyrene Benzo[ b]fluoranthene Benzo[ j]fluoranthene Benzo[ k]fluoranthene Cyclopenta[cd ]pyrene Dibenzo[ah]anthracene ... fluoranthene, chrysene, benzo( a)anthracene, benzo( a )pyrene, benzo( k)fluoranthene, indene(1, 2, cd )pyrene, benzo( g, h, i)perylene, benzo( e )pyrene, benzo( j)fluoranthene, benzo( b)fluoranthene, dibenzo(a, b)anthracene...

Ngày tải lên: 15/03/2014, 16:20

... aliphatic hydrocarbon standards (NIST1494 – C10-C34 hydrocarbons) and secondly a mixture of 16 PAH standards To evaluate method performance with combined aliphatic hydrocarbons and PAHs, spiking was ... Quality Control Materials Standards and Reagent Preparation 6.1 Stock solutions of µg/mL of PAH standards in toluene 6.2 Internal PAHs standard (IS) concentration: µg/mL (Benzo[ ghi]perylene-d12, ... Chrysene-d12) in toluene and 200 µg/mL Benzo[ a ]pyrene- d12 in cyclohexane 6.3 Working standard solution mixture of 16 PAHs in toluene (100 ng/mL) 6.4 Working internal standard mixture of IS PAHs...

Ngày tải lên: 09/09/2015, 09:38

... the diastereomeric benzo[ a ]pyrene 7,8-diol-9,10-epoxides in newborn mice: exceptional activity of (+)-7beta,8alphadihydroxy- 9alpha, 1 0alpha- epoxy-7,8,9,10-tetrahydrobenzo[a ]pyrene Proc Natl Acad ... carcinogenic and noncarcinogenic enantiomers of benzo[ a ]pyrene dihydrodiol epoxide Chem Res Toxicol 2, 334–340 Meehan T & Straub K (1979) Double-stranded DNA steroselectively binds benzo( a )pyrene diol ... Kd (K rel ) and kcat (k rel ) values for binding and d cat methylation of DNA containing (+)-cis-B[a]PN2-dG and (+)-trans-B[a]P-N2-dG adducts by M.SssI (A) and M.HhaI (B) The K rel and k rel d...

Ngày tải lên: 19/02/2014, 00:20

... Tumorigenicity studies with diol-epoxides of benzo( a )pyrene which indicate that (+/-)-trans-7beta, 8alpha- dihydroxy- 9alpha, 1 0alpha- epoxy-7,8,9,10-tetrahydrobenzo(a )pyrene is an ultimate carcinogen in newborn ... (+)-7S,8S-dihydroxy-7,8-dihydrobenzo[a ]pyrene ((+)-7,8-diol) and (–)-7R,8R-dihydroxy-7,8-dihydrobenzo[a ]pyrene ((–)-7,8-diol), as substrates EXPERIMENTAL PROCEDURES Materials Ole2PtdCho, Ole2PtdEtn, Ela2PtdEtn, and PtdSer ... of benzo[ a ]pyrene leading predominantly to the diol-epoxide r-7,t-8-dihydroxy-t-9,10-oxy-7,8,9,10-tetrahydrobenzo[a ]pyrene through a single enantiomer of r-7,t-8dihydroxy-7,8-dihydrobenzo[a]pyrene...

Ngày tải lên: 08/03/2014, 10:20

... food items for benzo[ a ]pyrene and estimation of its intake in an epidemiologic study Food Chem Toxicol 39, 423–436 16 Li S, Pan D & Wang G (1994) Analysis of polycyclic aromatic hydrocarbons in ... Maurice and Erwan Magueur is greatly appreciated This work was supported by grants from the Lorraine Region and Urban Community of Grand Nancy (CUGN) and from the French Ministry of Research and ... with strong lipophilic properties are not limited to organochlorines and ⁄ or pesticides, but also include polycyclic aromatic hydrocarbons (PAH) that are by-products of industrial activity Although...

Ngày tải lên: 30/03/2014, 11:20

... triplicate cultures, and the bar on the columns represent the means±SD of triplicate cultures Effects of Benzo[ a ]pyrene, 2-Bromopropane, Phenol and 2,3,7,8-Tetrachlorodibenzo-p-Dioxin on Proinflammatory ... 5´-GCGGCTGACTGACTGAACTCAGATTGTAG 3´-GGGATATGTCGACTTTTGACACTG 306 Effects of Benzo[ a ]pyrene, 2-Bromopropane, Phenol and 2,3,7,8-Tetrachlorodibenzo-p-Dioxin on Proinflammatory Cytokines Gene Expression by Mice ... splenocytes to 10-9M of TCDD induces IFNγ and TNFα gene expression, and suppresses IL-1 expression 10-6M phenol suppresses IL-1, IL-6 and TNFα gene expression, and 2-BP downregulates TNFα gene expression...

Ngày tải lên: 07/08/2014, 15:20

... alone (BaP) and benzo( a )pyrene with pyrene 1,700 µg/kg and phenanthrene 4,300 µg/kg (BPP) Values are mean ± SD Changes of biomarkers with oral exposure to benzo( a )pyrene, phenanthrene and pyrene ... and PY Fig Liver microsomal EROD activity at different time points by treatment with a vehicle (4 ml/kg BW), benzo( a )pyrene 150 µg /kg alone (BaP) and benzo( a )pyrene with pyrene 1,700 µg/kg and ... by treatment with benzo( a )pyrene 150 µg/kg alone (BaP) and benzo( a )pyrene with pyrene 1,700 µg/kg and phenanthrene 4,300 µg/kg (BPP) Values are mean ± SD Fig Changes of PAHs and their metabolites...

Ngày tải lên: 07/08/2014, 20:23

... in higher plants exposed to polycyclic aromatic hydrocarbons and their N-heterocyclic derivatives Environ Toxicol Chem 2006, 25:3238-3245 Burritt DJ: The polycyclic aromatic hydrocarbon phenanthrene ... phenanthrene) and control plants (0 mM phenanthrene) were grown under long days and harvested at 21 d, and at least 20 plants were pooled and stored at -80°C 500 mg tissue was removed from each pool and ... ⎟ ⎝ ⎠ ⎝ ⎠ δc and δp are standard deviations of organ length in control and phenanthrene treatment, respectively; nc and np are numbers of roots or hypocotyls measured in control and phenanthrene...

Ngày tải lên: 12/08/2014, 03:21

Ngày tải lên: 14/11/2014, 08:23

... thesis was to design and synthesize soluble and stable NIR dyes In this dissertation, polycyclic aromatic compounds (perylene, porphyrin and BODIPY units) have been utilized and two strategies ... polycyclic aromatics usually exhibit excellent chemical stability and photostability In addition, polycyclic aromatics hold the advantages such as low toxicity and ease of functional and structural ... definitely lower the HOMO-LUMO band gaps of the molecules and lead to bathochromic shift of their absorption and emission bands Another troublesome issue for polycyclic aromatics (in particular, PAH)...

Ngày tải lên: 10/09/2015, 08:36

... Effect of IFN-α, IFN-β and/ or IFN-γ on HCMV plaque formation Treatment Vehicle IFN-α IFN-α IFN-β IFN-β IFN-γ IFN-γ IFN-α and IFN-β IFN-α and IFN-γ IFN-β and IFN-γ IFN-α, IFN-β and IFN-γ IU/mla Log ... pre-treated with 100 IU/ml each of (1) IFN-α and IFN-β, (2) IFN-α and IFN-γ or (3) IFN-β and IFN-γ As expected, the level of inhibition achieved with both IFN-α and IFN-β was not greater than the level ... assess the synergistic potential of type I and type II IFN treatment An interaction index of 0.05 ± 0.03 for IFN-α and IFN-γ combined and 0.04 ± 0.01 for IFN-β and IFN-γ combined indicated a high degree...

Ngày tải lên: 18/06/2014, 22:20

... Effect of IFN-α, IFN-β and/ or IFN-γ on HCMV plaque formation Treatment Vehicle IFN-α IFN-α IFN-β IFN-β IFN-γ IFN-γ IFN-α and IFN-β IFN-α and IFN-γ IFN-β and IFN-γ IFN-α, IFN-β and IFN-γ IU/mla Log ... pre-treated with 100 IU/ml each of (1) IFN-α and IFN-β, (2) IFN-α and IFN-γ or (3) IFN-β and IFN-γ As expected, the level of inhibition achieved with both IFN-α and IFN-β was not greater than the level ... assess the synergistic potential of type I and type II IFN treatment An interaction index of 0.05 ± 0.03 for IFN-α and IFN-γ combined and 0.04 ± 0.01 for IFN-β and IFN-γ combined indicated a high degree...

Ngày tải lên: 20/06/2014, 04:20

... then transformed into the norm-based scoring and compared to age and sex adjusted national norms On the norm-based scale, the national mean is 50 and standard deviation is 10 for US general adult ... age and sex adjusted mean domain scores using Student's t -test All dropouts were considered treatment failures Results One hundred and sixty-five patients were enrolled in the study and randomized ... between the high and low dose treatment arms Comparison to age adjusted national average Table and show the comparison to age and sex adjusted national mean score for responders and nonresponders...

Ngày tải lên: 20/06/2014, 15:20

... invasion and degradation of surrounding matrix, and migration into the vasculature and surrounding tissue, E-cadherin catenin complex is reintroduced and cells adhere to the vasculature and form ... Ellis IO: An immunohistochemical examination of the expression of E-cadherin, alpha- and beta/gamma-catenins, and alpha2 - and beta1-integrins in invasive breast cancer J Pathol 1999, 187:523-529 Dillon ... breast cancer Br J Cancer 2001, 85:1958-1963 Bukholm IK, Nesland JM, Karesen R, Jacobsen U, Borresen-Dale AL: E-cadherin and alpha- , beta-, and gamma-catenin protein expression in relation to metastasis...

Ngày tải lên: 09/08/2014, 07:21

... Maiocchi L, Filice G: Viral dynamics and pharmacokinetics of peginterferon alpha- 2a and peginterferon alpha- 2b in naive patients with chronic hepatitis c: a randomized, controlled study Antivir ... diversity and the opportunity for viral escape from host immune surveillance and antiviral therapy Ideally, interferon alpha serum levels should provide constant pressure on the virus and should ... course of combination (Peg-IFN alpha- 2a plus ribavirin) and just before starting interferon and ribavirin therapy for chronic HCV infection, at the Hepatology and Gastroenterology Department...

Ngày tải lên: 13/08/2014, 13:20