Contact allergy to fungicide.
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Agricultural Workers' Diseases↗
Biomedical subjects
A M Oakley
Publications and source records attributed to A M Oakley.
Quantitative studies on UVA-induced erythema in human skin.
The erythemal response of normal human skin to UVA and UVB radiation was measured objectively using a reflectance instrument in seven subjects, and a laser Doppler velocimeter in two subjects. UVA radiation was produced using a newly-developed high-intensity UVA lamp. The slope of the log dose-erythemal response curve for UVA at 24 h after irradiation was found not to differ significantly from that for UVB. The time course of UVA erythema was biphasic; erythema was present immediately after irradiation, fell to a minimum at about 4 h and then rose to a broad plateau between 6 and 24 h. The intensity of the early phase was dose-rate dependent, whereas that in the later phase depended on dose only.
Adult↗
The onset of ultraviolet erythema.
The onset of erythema induced by UVB and by UVC radiation was monitored in two subjects using a reflectance instrument. It was shown that vasodilation occurred some time before erythema became visible, even with small exposure doses of UVB or UVC, after which visible erythema was not apparent for several hours. In one subject, vasodilation was detected very shortly after irradiation and may have even begun during irradiation. In the other subject vasodilation was detected later at most exposure doses, but still some time before erythema became visible. We conclude that the so-called 'latent period' between irradiation and appearance of erythema is an artificial concept arising from the insensitivity of the eye.
Dose-Response Relationship, Radiation↗
Skin clips are contraindicated when there is nickel allergy.
Four patients are described who developed generalized dermatitis following surgical wound closure with disposable skin clips. In 3 of them a vesicular palmar eczema was a prominent feature. They were found to have contact allergy to nickel, a component of the clips. If skin clips are to be used to close a surgical wound, it should be established that the patient is not allergic to nickel.
Adult↗
Cutaneous vasculitis from maprotiline.
An 83 year old woman with depression, while receiving maprotiline, developed a vasculitic skin eruption which resolved on discontinuing the drug. Vasculitis has not previously been reported with this drug.
Aged↗