Results 31 to 40 of about 282,417 (263)
Quantitative Assessment of Organic and Inorganic Contaminants in Charcoal
Resources, 2021 Thirty-one batches of commercial charcoal from various regions of Poland and Germany were tested for the presence of 20 toxic elements and polycyclic aromatic hydrocarbons (PAHs) using gas chromatography-mass spectrometry (GC-MS). Elements that are toxic
Zbigniew Jelonek +2 more
doaj +1 more source
Cancer Informatics, 2009 This study aimed at discriminating carcinogens on the basis of hepatic transcript profiling in the rats administrated with a variety of carcinogens and non-carcinogens.
Hiroshi Matsumoto +9 more
doaj +2 more sources
Are there thresholds for carcinogens carcinogenicity?
Mycotoxins, 2008 魚や肉などの焼けこげに含まれている2-amino-3,8-dimethylimidazo[4,5-f ] quinoxaline（MeIQx）のラット肝臓における低用量発がん性を中期発がん性試験法で検討した．その結果，MeIQx?DNA 付加体形成は微量からみられ，より高い用量で8-hydroxy-2′-deoxyquanosine 形成，lacI 遺伝子変異，イニシエーション活性等が誘発された．また，肝臓の前腫瘍性病変であるglutahione S-transferase placental（GST-P）陽性細胞巣は，さらにより高い用量で誘発された．N- ニトロソ化合物であるN-nitrosodiethylamine やN-nitrosodimethylamine でもGST-P ...
FUKUSHIMA, Shoji +3 more
openaire +2 more sources
Supervised mutational signatures for obesity and other tissue-specific etiological factors in cancer
eLife, 2021 Determining the etiologic basis of the mutations that are responsible for cancer is one of the fundamental challenges in modern cancer research. Different mutational processes induce different types of DNA mutations, providing ‘mutational signatures ...
Bahman Afsari +12 more
doaj +1 more source
Biotechnologie, Agronomie, Société et Environnement, 2022 Risk associated with the presence of mycotoxins (aflatoxins and ochratoxin A) in foodstuffs: the case of fermented fish (adjuevan) marketed in Abidjan (Côte d’Ivoire) Description of the subject.
Kouakou Gains Kpan Kpan +3 more
doaj +1 more source
, 2010 Mycotoxins are metabolites of molds considered to be a major risk factor affecting human and animal health. It is estimated that 25% of the world’s crop production is contaminated with mycotoxins. Mold contamination occurs extensively in fields and is particularly severe in tropical countries.
Peraica, Maja, Domijan, Ana-Marija
openaire +2 more sources
FEBS Open Bio, EarlyView.Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero +5 more
wiley +1 more source
Health effects of exposure to radon: implications of the radon bed mattress incident in Korea [PDF]
Epidemiology and Health, 2019 Radon is a naturally occurring radioactive material formed by the slow decay of uranium and thorium found in the earth’s crust or construction materials. Internal exposure to radon accounts for about half of the natural background radiation dose to which
Songwon Seo +6 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Active Corrosion Protection of Sintered AA7075 Aluminum Alloy via Mn Powder Addition
Advanced Engineering Materials, EarlyView.AA7075 containing Mn‐rich particles is fabricated via spark plasma sintering using AA7075 and Mn powders. Corrosion resistance is evaluated through dip‐and‐dry tests using 0.1 M NaCl (pH 6.0), and mass loss decreases with increasing Mn addition. Mn‐rich particles function as a source of Mn ions, and formation of Mn‐accumulation films on Cu‐containing ...
Ko Ebina, Masashi Nishimoto, Izumi Muto
wiley +1 more source