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Biomedical subjects

S Fregert

Publications and source records attributed to S Fregert.

At least 73 records · Page 4Linked to original sources
PubMed1980

Occupational exposure to epoxy resins has no cytogenetic effect.

Cytogenetic evaluation was performed of peripheral lymphocytes from 18 workers currently exposed to epoxy resins of the type diglycidyl ether bisphenol-A (DGEBA). 9 workers were exposed to low molecular (average MW less than 900) and 9 to high molecular (average MW about 2000) epoxy resins. The results were compared with an equal number of control individuals matched for sex and age. There was no difference in chromosomal aberration frequency between the controls and the groups exposed to epoxy resin. Thus, this study gave no indication that exposure to epoxy resin produces visible damage to the chromosomes.

Adolescent↗
PubMed1980

Contact allergy to atranorin in lichens and perfumes.

Atranorin, one of the most common lichen substances, gave positive patch test reactions in eight subjects (1%) in a routine series. These subjects also reacted to fumarprotocetraric acid and some of them to evernic acid. Stictic acid and usnic acid gave negative reactions. The lichen oak moss Evernia prunastri and an oak moss perfume gave positive reactions. Thin-layer chromatography and a spot test indicated that atranorin is present in oak moss perfumes which are made from oak moss and tree moss. Contact with oak moss perfumes and lichens in nature may cause atranorin allergy. None of the eight subjects had a history of light sensitivity or atopy and none had chronic facial eczema.

Adult↗
PubMed1980

Allergic contact dermatitis from acrylates in ultraviolet curing inks.

Six patients developed dermatitis while working with ultraviolet curing inks in four different printing plants. Contact allergy was found to the multifunctional acrylate monomers pentaerythritol triacrylate (PETA) and trimethylol propane triacrylate (TMPTA) and to the epoxy acrylate and polyesteracrylate prepolymers.

Acrylates↗