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Biomedical subjects

E A Johansson

Publications and source records attributed to E A Johansson.

At least 19 recordsLinked to original sources
PubMed1988

Modification of lymphocyte subsets in Jessner's lymphocytic infiltration of the skin during proquazone treatment.

This study deals with 13 patients who volunteered for serial biopsies during proquazone treatment which proved to be effective in the majority of the cases. The immunocompetent cells in the inflammatory cell infiltrates were characterized by a panel of monoclonal antibodies: OKT11, OKT4, OKT8, OKT6, NK-9 and Leu-14. Before proquazone treatment there was only a slight predominance of OKT4-positive cells as compared to OKT8-positive cells but a rather high number of NK-9-positive natural killer or activated cytotoxic T cells. The pattern of inflammatory cell subclasses changed during the treatment and the most striking difference was the reduction in the number of the NK-9-positive cells. It is proposed that Jessner's lymphocytic infiltration of the skin (LIS) should be viewed as an entity and that proquazone possibly acts by modulating the pattern and activation stage of lymphocyte subclasses in LIS.

Adult↗
PubMed1987

Proquazone: a treatment for lymphocytic infiltration of the skin. Comparative study with 2 other nonsteroid anti-inflammatory drugs.

15 patients with lymphocytic infiltration of the skin (LIS) were treated with the nonsteroid anti-inflammatory (NSAI) drug proquazone [1-isopropyl-4-phenyl-7-methyl-2(IH)]. In contrast to other NSAI drugs proquazone is a nonacidic compound which is known to be a potent prostaglandin synthesis inhibitor. Of the 15 patients 8 were healed completely with proquazone; in half of these patients lesions recurred but healed with reintroduction of the drug. Two patients remained symptom-free with a small maintenance dose. Two patients showed a partial remission. The treatment was discontinued in 3 patients, in 2 of them because of side effects and in 1 because of lack of response. Two other NSAI drugs, both known to be potent prostaglandin synthesis inhibitors, namely indomethacin and ibuprofen, were tried, however without effect. The present study indicates that proquazone should be considered in the treatment of LIS.

Adult↗
PubMed1984

Localized heat urticaria associated with a decrease in serum complement factor B (C3 proactivator).

A case of localized heat urticaria is reported in a 51-year-old woman who within a few minutes of contact with warm water developed erythema and swelling sharply localized to the heated area. After a hot bath urticarial lesions appeared over large areas of her body, accompanied by a feeling of weakness, but no other systemic symptoms. After challenge with heat by immersing her left arm in water heated to 42 degrees C, a rapid decrease of her serum complement level of factor B was demonstrated, suggesting that activation of an alternative complement pathway plays a role in this form of urticaria. Biopsies for immunofluorescent study of complement and immunoglobulins were negative at 30 and 180 min after heat challenge. The dermal fibres and endothelial cells of dermal vessels were capable, in vitro, of complement binding before and after exposure to heat.

Complement Factor B↗
PubMed1984

Comparative efficacy of once a day diflorasone diacetate and twice a day betamethasone valerate ointment applications in eczematous dermatitis.

The efficacy of once a day applications of 0.05% diflorasone diacetate ointment and twice a day applications of 0.1% betamethasone valerate ointment was compared in 70 patients with eczematous dermatitis. Altogether 32 patients completed the 3-week study. Fourteen patients in the diflorasone group and 6 on betamethasone left the study earlier because of total (100%) improvement of lesions. Eight patients left because of unsatisfactory progress and 6 because of personal reasons. There were only two noticeable differences observed between treatment groups. At Week 2, the diflorasone diacetate group improved significantly more than the betamethasone valerate group with respect to pruritus. At Week 3, this difference in the improvement of pruritus was marginally significant in favour of diflorasone diacetate. Excluding the complications due to a secondary infection, no adverse reactions were recorded in the diflorasone diacetate-treated patients; 1 betamethasone valerate-treated patient developed telangiectasia. The once a day applications of diflorasone diacetate not only proved to be slightly more efficacious than the twice a day applications of betamethasone valerate, but also provided the advantages of patient convenience and compliance.

Adolescent↗
PubMed1981

Mixed connective tissue disease: a follow-up study of 12 patients with special reference to cold sensitivity and skin manifestations.

A great variety of skin manifestations and the frequent occurrence of cold sensitivity, vascular symptoms with peripheral painful ulcerations, headache of migraine type, and muscle and joint symptoms are described in a series of 12 patients with an overlap syndrome compatible with mixed connective tissue disease (MCTD). The patients have been followed up for an average of 7 years. The peripheral symptoms on the extremities in particular were exacerbated by exposure to cold and caused much inconvenience and early disability for the patients. In addition to the symptoms generally connected with MCTD, some of the patients presented signs of other diseases of autoimmune type as well. For instance 2 of the patients presented autoimmune thyroiditis and one patient developed myasthenia gravis and cold agglutinin syndrome.

Adolescent↗
PubMed1980

Palmoplantar keratoderma of punctate type: acrokeratoelastoidosis Costa.

A special type of punctate palmoplantar keratoderma occurring in 10 patients from six Finnish families is described clinically, histologically and ultrastructurally. Eight of the patients were women. The patients had symptomless, slightly elevated, transparent, round or oval, hyperkeratotic papules, 2 to 5 mm in diameter, located at the edges of the palms and fingers, the entire palms and wrists, and at the edges of the soles. The clinical picture resembled acrokeratoelastoidosis Costa. Six of the patients also had knuckle pad-like lesions on the interphalangeal joints of the fingers and toes. Three of the patients had recalcitrant warts and no wart virus antibodies were found in their sera. The pedigrees of three families are presented and an autosomal dominant inheritance pattern is suggested. The histology of the lesions revealed undulating hyperkeratosis with slight depressions on the epidermis, which was otherwise normal. The dermis was of normal thickness and both the elastic and the collagen fibres seemed to be microscopically normal. Ultrastructurally, however, the elastic fibres in the deep dermis showed pathological alterations in some cases. In conclusion, we consider the condition to be acrokeratoelastoidosis Costa, a variant of hereditary palmoplantar keratodermas.

Adolescent↗
PubMed1979

The ribonucleic acid (RNA) skin test in systemic lupus erythematosus and other connective tissue diseases.

A series of 65 patients with different autoimmune diseases was examined using different RNA-solutions for intradermal skin tests. Clinically positive results were obtained most often in patients with mixed connective tissue disease but quite often also in patients with systemic lupus erythematosus and progressive systemic sclerosis or with some symptoms of an automimmune nature. The histological examination of the biopsies from the test sites revealed that there was no correlation between the clinically positive tests and the histological criteria usually used as a sign of a positive test.

Adult↗
PubMed1977

A peripheral vascular syndrome overlapping with systemic lupus erythematosus. Recurrent venous thrombosis and hemorrhagic capillary proliferation with circulating anticoagulants and false-positive seroreactions for syphilis.

Three women and five men with chronic biological false-positive seroreactions for syphilis and circulating anticoagulants exhibited a vascular syndrome consisting of recurrent deep venous thrombosis of the extremities and necrotizing purpura with painful superfacial starlike ulcers around the ankles. The skin biopsies revealed a unique picture of massive proliferation of hemorrhagic dermal capillaries without a significant inflammatory reaction. Some virus infection may function as a trigger of this peripheral vascular syndrome, because 6 of the 8 patients had a preceding pneumonia with pleural vascular effusion. Considering that the three women had clinical and laboratory evidence of systemic lupus erythematosus (SLE) this syndrome may be related to SLE.

Adolescent↗
PubMed1975

The deoxyribonucleic acid (DNA) skin test in systemic lupus erythematosus. I. Clinical evaluation.

A clinical evaluation of the intradermal DNA-test was carried out on a series of patients with untreated or with treated definite systemic lupus erythematosus (SLE), or with suspected SLE with or without circulating antinuclear factors. A saline solution of a commercially available DNA-preparation was used. The course of the DNA reaction was followed for 24-48 h after the injection. All nine cases of untreated definite SLE had a positive DNA test 6 h after the injection, and eight cases a positive result at 24 h. All seven patients with definite SLE who were on low-dosage systemic steroid treatment had a clinically positive. DNA test at 6 h. In all except one of these cases the test was still positive at 24 h. All five patients with definite SLE on antimalarial treatment had a positive test at 6 h which had become negative at 24 h after the injection. Eleven of the twelve patients with suspected SLE and circulating antinuclear factors had a positive DNA test at 6 h, which in nine cases persisted for 24 h. On the other hand, of the eleven ANF negative patients with various connective tissue diseases five had a positive test at 6 h. In only one of these cases it persisted for 24 h. Two of the eighteen control patients with various dermatoses exhibited a positive test at 6 h, and in one of these the positive reaction persisted for 24 h. It is concluded that the intradermal skin test using native DNA is a useful diagnostic tool for the detection of SLE when the reaction is followed up for 24 h. Antimalarial treatment seems to decrease skin reactivity to native DNA.

Adrenal Cortex Hormones↗
PubMed1975

The deoxyribonucleic acid (DNA) skin test in systemic lupus erythematosus. 2. Histological findings.

A total of fifty-five biopsies from fifty-two intradermal DNA skin tests were studied. The biopsies were taken, 6, 8-10, 24 or 48 h after the injection of the DNA material. Necrosis of the vessel wall was taken to be the main characteristic of a specific reaction. In forty of the fifty-two tests the results of the histological evaluation closely matched the clinical results. In five of the fifteen cases with discrepancies, the histological evaluation ruled out clinically false positive test results. In three cases of SLE on corticosteroid treatment, the histological examination gave a positive result despite a clinically negative result. In seven of the fifteen cases the discrepancies occurred in borderline cases with reactions of 5 to 6 mm diameter. The amount of inflammatory cells in positive as well as in negative reactions was also recorded. The number of polymorphonuclear cells in positive reactions increased with the age of the reaction. The number of lymphocytes was not found to increase in the positive reactions, thus differing from the delayed hypersensitivity type of reactions. Rather, the reaction was characterized by an Arthus type of hypersensitivity. On the basis of the present study it may be concluded that clinically positive tests at 6 or 8 h may merely be expressions of nonspecific vascular alterations. On the other hand, in late reactions, even in patients on systemic treatment, histological examination revealed clinically negative results to be positive. By using the histological picture of hypersensitivity angiitis as the main diagnostic criterion the specificity of the clinical reactions may be established.

Adult↗