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Biomedical subjects

P Sjövall

Publications and source records attributed to P Sjövall.

11 recordsLinked to original sources
PubMed2000

An open study of efficacy and safety of long-term treatment with mometasone furoate fatty cream in the treatment of adult patients with atopic dermatitis.

BACKGROUND: Atopic dermatitis is a severe chronic skin disease often deteriorated by the presence of microorganisms and often responds well to treatment with potent corticosteroids. However, the long-term use of potent topical corticosteroids are accompanied by side-effects such as skin atrophy. OBJECTIVE: To study the effect and safety of prophylactic treatment with mometasone furoate fatty cream (contains hexylene glycol) for 6 months in patients with atopic dermatitis. RESULTS: Sixty-one of 68 (90%) patients were still free of their disease after 6 months of twice weekly treatment and only one showed possible treatment related signs of skin atrophy. The number of Staphylococcus aureus and Pityrosporum ovale were significantly reduced in cleared patients. CONCLUSIONS: Mometasone furoate fatty cream is effective and safe both for treatment and as a prophylaxis in patients with atopic dermatitis.

Administration, Topical↗
PubMed1994

Treatment of chronic hand eczema with UV-B Handylux in the clinic and at home.

The efficacy of UV-B irradiation, administered by a new unit, Handylux, in patients with chronic hand eczema was investigated. 15 patients were treated in the clinic and 11 patients at home. Treatments were performed 4-5 x weekly for approximately 10 weeks. According to the strict criteria used for clearing, none of the patients cleared during the study, but 18 of the 26 patients were defined as much improved by the investigator, while 17 of the patients considered themselves as > 80% improved. The compliance in both groups was very good and side-effects limited and dose-related. According to our experience, the effect of high dose UV-B in chronic hand eczema is almost comparable to PUVA, and offers an opportunity for patients to treat themselves at home.

Adult↗
PubMed1990

Oral hyposensitization in allergic contact dermatitis.

In this review, the concepts of hyposensitization, tolerance and hardening are defined. Studies concerning hyposensitization by different routes of allergen administration are mentioned. The most important studies in humans, as well as in experimental animals, regarding oral hyposensitization are then gone into more thoroughly. The possible mechanisms of hyposensitization are discussed. It is concluded that oral hyposensitization in humans is indeed possible. Furthermore, the reaction is antigen-specific, diminishes quickly, and it is probably the dose administered at a certain moment rather than the total amount of allergens ingested that is crucial when receiving hyposensitization. However, further performed studies do not justify the routine use of oral hyposensitization.

Administration, Oral↗
PubMed1987

Oral hyposensitization in nickel allergy.

In two controlled studies, each including 24 patients with contact allergy to nickel, different protocols were designed in an attempt to diminish the patients' hypersensitivity by oral administration of the antigen. With doses of 5.0 mg nickel sulfate taken once a week for 6 weeks, but not with 0.5 mg daily, the degree of contact allergy was significantly lowered, measured as patch test reactions before and after nickel administration.

Administration, Oral↗
PubMed1987

Local and systemic effect of UVB irradiation in patients with chronic hand eczema.

The effect of local as well as whole body irradiation with UVB was investigated in patients with chronic hand eczema not responding to conventional topical treatment. UVB irradiation of the hands was significantly more effective than placebo. Whole body UVB irradiation combined with additional irradiation of the hands proved to be even more effective than local treatment in clearing chronic hand eczema. Due to the relatively fast relapse of the hand eczema after the UVB treatment period maintenance treatment is warranted. This could possibly be carried out by the patients at home, but under surveillance by a dermatologist.

Adult↗
PubMed1986

Local and systemic effect of ultraviolet irradiation (UVB and UVA) on human allergic contact dermatitis.

In subjects hypersensitive to nickel we have investigated local and systemic effect of whole body exposure of cumulative suberythema UVB doses as well as solarium-UVA exposure. UVB possesses both locally and systemically a suppressive effect on human allergic contact dermatitis, but UVA has no such effect. The systemic suppressive effect of UVB might be of therapeutic importance in patients with severe chronic dermatitis of the hands when adding this effect to a local suppressive effect. Also, patch testing should not be performed during UVB and/or overt sun exposure.

Adult↗
PubMed1986

Systemic quinine photosensitivity.

A 72-year-old woman developed a photodistributed skin eruption while taking quinine hydrochloride (250 mg) once or twice weekly for recumbency cramps. The histopathology showed an eczematous reaction. Phototesting after quinine therapy had been discontinued for one month revealed normal erythema thresholds for ultraviolet (UV) light in the A range (17 J/cm2) and UV light in the B range (20 mJ/cm2). A second phototest after a ten-day period of reexposure to quinine hydrochloride (250 mg daily) showed a drastically lowered threshold for UV light in the A range (less than 1.0 J/cm2), while the test for UV light in the B range was unchanged. The patient's dermatitis also exacerbated with pronounced itching. The histopathologic results from a positive test site were similar to those of her eczematous lesions. We believe this to be the first documented case of systemic quinine photosensitivity. The clinical picture, the results of the phototests, and the histopathology suggest a photoallergic mechanism.

Administration, Oral↗
PubMed1985

Single exposure to ultraviolet irradiation and elicitation of human allergic contact dermatitis.

Ultraviolet radiation has been stated to inhibit afferent as well as efferent phases of allergic contract dermatitis. In this controlled study 17 female patients with nickel allergy were studied by three different protocols after an initial determination of their degree of hypersensitivity. They were patch tested with nickel sulfate immediately after UVB, 4-6 days after UVB, or immediately after external PUVA. Neither depressing nor enhancing of the allergic reaction was observed when compared to non-irradiated controls. The role of Langerhans cells as antigen-presenting cell playing an important role in the elicitation phase of allergic contract dermatitis is discussed and questioned.

Adolescent↗
PubMed1985

The influence of locally administered ultraviolet light (UVB) on the allergic contact dermatitis in the mouse.

A quantitative model of contact allergy to picryl chloride in the mouse was used to evaluate the influence of locally administered ultraviolet light (UVB) on sensitization and challenge. UVB was given in three different doses immediately before and 24 h before sensitization and challenge, respectively. A suppressive effect was demonstrated on the afferent as well as on the efferent limb of the allergic reaction.

Animals↗