Results 31 to 40 of about 77,097 (309)
Are there thresholds for carcinogens carcinogenicity?
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
A toxicity electrochemical DNA biosensor has been constructed for the detection of carcinogens using 24 base guanine DNA rich single stranded DNA, and methylene blue (MB) as the electroactive indicator.
Nor Diyana Md. Sani +7 more
doaj +1 more source
In an editorial in an earlier issue of this journal, Johanson & Tinnerberg (1) expressed serious and well-founded concern over the large number of future occupational cancer cases that will result if exposures for a number of substances are not reduced ...
Maria Albin, Per Gustavsson
doaj +1 more source
In the past, 2-naphthylamine (2-NA) was used for the production of azo dyes, as an antioxidant in the cable industry and in the rubber industry. Despite the fact that 2-NA is not produced on an industrial scale, it is still used in small quantities as a ...
Ewelina Czubacka, Sławomir Czerczak
doaj +1 more source
Nasal cavity tumors constitute a very small part of head and neck malignancies. Although paranasal sinus tumors due to the presence of backward foreign bodies, neoplasms of nasal cavity associated with a foreign body are extremely rare.
Selçuk Yıldız +3 more
doaj +1 more source
Background: Prostate cancer has become the most common cancer among African – American men and the second leading cause of cancer death in men worldwide.
Joseph Bamidele Minari +1 more
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PP2A Deficiency Enhances Carcinogenesis of Lgr5+ Intestinal Stem Cells Both in Organoids and In Vivo
In most cancers, cellular origin and the contribution of intrinsic and extrinsic factors toward transformation remain elusive. Cell specific carcinogenesis models are currently unavailable. To investigate cellular origin in carcinogenesis, we developed a
Yu-Ting Yen +6 more
doaj +1 more source
Bacteria-Mediated Oncogenesis and the Underlying Molecular Intricacies: What We Know So Far
Cancers are known to have multifactorial etiology. Certain bacteria and viruses are proven carcinogens. Lately, there has been in-depth research investigating carcinogenic capabilities of some bacteria.
Shashanka K. Prasad +10 more
doaj +1 more source
: A total of 35 female albino rats were divided into 7 groups: control, rats exposed to carcinogen, treated with varying concentrations of Senna alata plant aqueous extracts, treated with standard drug, and untreated for total 28 days of treatment ...
Joy, Okpuzor, Olufunke, Olugbenga
core +1 more source
The magnetic field near power lines in the Moscow region: the results of measurements and their analyze [PDF]
The aim: to analyze the real power frequency magnetic field (50 Hz) values near power lines. The material. Long-term measurements of the power frequency magnetic field (50 Hz) near power lines of 110 kV, 220 kVand 500 kVin the Moscow region.
Prokofyeva A.S., Grigoriev O.A.
doaj

