Specific IgE to reindeer epithelium in Finnish reindeer herders.

Reindeer herding is a major source of living for more than 4200 inhabitants in northern Finland. To determine the prevalence of allergic symptoms among reindeer herders clinical examinations and skin prick tests (SPT) with nine inhalant allergens were performed in 211 randomly selected men from 21 to 69 (mean 45) years. Specific IgE antibodies to reindeer epithelium (RE) and total serum IgE were evaluated in 99 herders, five persons who handled reindeer leather indoors, 21 atopic patients with cow allergy and another 20 subjects with specific IgE to other inhalant allergens.

Respiratory symptoms and ventilatory function among Finnish reindeer herders.

Prevalence of respiratory symptoms in relation to occupation and smoking habits were evaluated in 211 randomly selected male reindeer herders in Northern Finland. Clinical examination with skin prick tests (SPT) and spirometry was conducted in 23 local health centers. No significant differences could be determined in respiratory symptoms, smoking habits or ventilatory function between full-time reindeer herders and their controls.

Effect of ultraviolet B on nonimmunologic contact reactions induced by dimethyl sulphoxide, phenol and sodium lauryl sulphate.

The effect of ultraviolet light B (UVB) on immediate and delayed irritant reactions induced by dimethyl sulphoxide (DMSO), phenol, and sodium lauryl sulphate (SLS) was studied in 12 volunteers. One half of the upper back was irradiated with 0.16 J/cm2 of UVB.

Effects of infra-red and neodymium yttrium aluminium garnet laser irradiation on non-immunologic immediate contact reactions to benzoic acid and methyl nicotinate.

Effects of infra-red A (IRA) (600-2000 nm) and 1064 nm laser irradiation on non-immunologic immediate contact reactions (NIICRs) induced by benzoic acid (BA) and methyl nicotinate (MN) were studied. Five concentrations of BA and MN in petrolatum were tested, on two subsequent days, without occlusion on the upper arm of 10 or 12 test subjects, with a dose of IRA irradiation that elevated surface temperature of the skin to 39.5 degrees C.

PUVA treatment inhibits nonimmunologic immediate contact reactions to benzoic acid and methyl nicotinate.

The effect of trioxsalen bath PUVA therapy on nonimmunologic immediate contact reactions (NIICRs) induced by benzoic acid (BA) and methyl nicotinate (MN) was studied in 12 dermatologic patients. One half of the back skin was covered with a cloth before each of ten irradiations on subsequent days. Four concentrations of each test substance were applied to the PUVA-exposed and nonexposed areas before any irradiation and after the 1st, 5th, and 10th PUVA treatment.

Immediate contact reactions to benzoic acid and the sodium salt of pyrrolidone carboxylic acid. Comparison of various skin sites.

Benzoic acid (BA) and the sodium salt of pyrrolidone carboxylic acid (NaPCA) were tested in 13 healthy persons to obtain information about, firstly, the irritant properties of NaPCA and, secondly, the reactivity of various skin sites. BA at 16, 8, and 4 mM pet., and NaPCA at 50, 25, 12.

Systemic effect of ultraviolet irradiation on non-immunologic immediate contact reactions to benzoic acid and methyl nicotinate.

Systemic effects of ultraviolet irradiation B (UVB) and ultraviolet irradiation A (UVA) on non-immunologic immediate contact reactions (NIICRs) induced by benzoic acid (BA) and methyl nicotinate (MN) were studied in healthy volunteers. NIICR tests with four concentrations of BA and MN in white petrolatum were performed on the skin of the upper back on exposed and non-exposed areas, before and at intervals 1-14 days after exposure to 1) 0.20 J/cm2 of UVB, 2) after the first of daily doses on five consecutive days of 0.

Effects of sorbitan sesquioleate on non-immunologic immediate contact reactions to benzoic acid.

In order to study the effects of an emulsifier on non-immunologic immediate contact reactions, 500, 250, 125, 62, and 31 mM benzoic acid (BA) was tested in 12 medical students on a skin area of the upper back treated with sorbitan sesquioleate in yellow petrolatum (20:80) 3 times daily for 2 days and on a contralateral skin area treated with petrolatum. The test areas were visually observed and the changes in the skin blood flow were monitored using laser-Doppler flowmetry 40 min after application. The reactions to 250 and 125 mM BA in petrolatum were stronger on the skin area treated with sorbitan sesquioleate than on the reference site treated with petrolatum.

Skin disorders and prick and patch test reactivity in Finnish reindeer herders.

In addition to an interview, skin tests and clinical examinations were performed on 211 randomly selected reindeer herders from 21 to 77 years of age (mean 45 years). Skin tests consisted of skin prick tests (SPT) with 9 allergens: cat and cow epithelium, dog, horse and reindeer epithelium, house dust mite, birch pollen, meadow grass pollen and mugwort pollen, as well as patch tests with 31 allergens. Of the 211 tested, 19 (9%) had positive SPT reactions to at least one allergen, and 19/173 (11%) showed a positive patch test result.

Ultraviolet light inhibits nonimmunologic immediate contact reactions to benzoic acid.

The effect of ultraviolet B (UVB) and ultraviolet A (UVA) irradiation on nonimmunologic immediate contact reactions (NIICRs) induced by benzoid acid (BA) was studied in 14 and 13 test subjects, respectively. 10 x 20 cm areas of the back skin were irradiated with 0.08, 0.