Results 11 to 20 of about 62,075 (266)

Studies on an efficient method for determining 3,3’-dimethylbenzidine in the workplace air

open access: yesMedycyna Pracy, 2016
Background: 3,3’-Dimethylbenzidene (DMB) is a substance classified into the group of carcinogens. The value of maximum admissible concentration for this substance in the workplace air is not specified in Poland.
Joanna Kowalska, Anna Jeżewska
doaj   +1 more source

A priority list of occupational carcinogenic agents for preventative action in Australia

open access: yesAustralian and New Zealand Journal of Public Health, 2012
Objective: To develop a list of carcinogens to guide decisions on priorities for preventive action in Australian workplaces. Approach: The following criteria provided the assessment framework to establish a list of priority carcinogens: evidence of ...
Renae C. Fernandez   +6 more
doaj   +1 more source

Cytochromes P450 are Expressed in Proliferating Cells in Barrett's Metaplasia

open access: yesNeoplasia: An International Journal for Oncology Research, 1999
The expression of cytochromes P450 (CYP) in Barrett's esophagus and esophageal squamous mucosa was investigated. Esophagectomy specimens from 23 patients were examined for CYP expression of CYP1A2, CYP3A4, CYP2C9/10, and CYP2E1 by immunohistochemical ...
Steven J. Hughes   +7 more
doaj   +1 more source

The Chemopreventive Effects of Polyphenols and Coffee, Based upon a DMBA Mouse Model with microRNA and mTOR Gene Expression Biomarkers

open access: yesCells, 2022
Polyphenols are capable of decreasing cancer risk. We examined the chemopreventive effects of a green tea (Camellia sinensis) extract, polyphenol extract (a mixture of blackberry (Rubus fruticosus), blackcurrants (Ribes nigrum), and added resveratrol ...
Richard Molnar   +13 more
doaj   +1 more source

An Electrochemical DNA Biosensor for Carcinogenicity of Anticancer Compounds Based on Competition between Methylene Blue and Oligonucleotides

open access: yesSensors, 2019
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

A silent epidemic: occupational exposure limits are insufficiently protecting individual worker health

open access: yesScandinavian Journal of Work, Environment & Health, 2020
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

2-naphthylamine toxicity

open access: yesMedycyna Pracy, 2020
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

Glass Particles in the Nasal Cavity for 30 Years and Squamous Cell Carcinoma: Is There a Relationship?

open access: yesTurkish Archives of Otorhinolaryngology, 2022
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

Carcinogenic Mycotoxins*

open access: yes, 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

PP2A Deficiency Enhances Carcinogenesis of Lgr5+ Intestinal Stem Cells Both in Organoids and In Vivo

open access: yesCells, 2019
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

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