The preparation and purification of tritiated carcinogenic hydrocarbons.

Investigating the Presence of Polycyclic Aromatic Hydrocarbons in Doogh

Background and purpose: Polycyclic aromatic hydrocarbons (PAHs) are one of the most common environmental pollutants that are proven to be carcinogenic and mutagenic. Doogh, is a widely consumed fermented yoghurt drink in Iran. The aim of this study was to determine the presence and concentration of PAHs in different brands of Doogh in Tehran, Iran. Materials and methods: In this study, we synt...

Purification and Characterization of Cytochrome P-450 Induced

Topical application of benz(a)anthracene to mouse skin elicited a 2fold increase in cytochrome P-450 content, with accompanying increases in monooxygenase activities such as benzo(a)pyrene hydroxylation, 7ethoxycoumarin O-deethylation, and acetanilide 4-hydroxylation, in the microsomes. A major form of cytochrome P-450 was purified from skin microsomes of mice treated with polvi-velie aromatic ...

Preparation and purification of tritiated phytohemagglutinin and studies of cellular localization in human leukocyte cultures.

Chemical Carcinogens and Respiratory Epithelium

In an earlier communication [1], carcinogenic hydrocarbons benzo(a)pyrene (BaP), 7,12-dimethylbenz(a)anthracene (DMBA) and 3-methylcholanthrene (MC) were shown to produce metaplasia and increased proliferation of the epithelium of suckling rat tracheas maintained in organ culture. Tissues exposed for several days by including hydrocarbon in the medium, and tissues so treated and then withdrawn ...

Health risk assessment of heavy metals, BTEX and polycyclic aromatic hydrocarbons (PAHs) in the workplace in a secondary oil re-refining factory

The present study aimed to evaluate the health risk of heavy metals (iron, zinc, cadmium, arsenic, nickel, lead, and mercury), benzene, toluene, ethylbenzene and xylene (BTEX), and polycyclic aromatic hydrocarbons (PAHs) in the workplace in a secondary oil re-refining factory. In this descriptive, cross-sectional study, samples were collected and analyzed using the NIOSH 1501 method at eight sa...