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Biomedical subjects

H Hagdrup

Publications and source records attributed to H Hagdrup.

At least 19 recordsLinked to original sources
PubMed1994

Contact allergy to 2-hydroxy-5-tert-butyl benzylalcohol and 2,6-bis(hydroxymethyl)-4-tert-butylphenol, components of a phenolic resin used in marking pens.

2-hydroxy-5-tert-butyl benzylalcohol and 2,6-bis(hydroxymethyl)-4-tert-butylphenol were identified as contact allergens in a phenolic resin used as a tackifier in the ink of a marking pen, which, after being used directly on the skin, caused an acute contact dermatitis on the hand of a 13-year-old boy. The patient also reacted to 4-tert-butylphenol-formaldehyde resin (BPF resin) 1% pet. included in the European standard series.

Acute Disease↗
PubMed1992

Abnormalities of lymphocyte function and phenotypic pattern in a case of toxic epidermal necrolysis.

We examined the blood lymphocyte function and phenotypic pattern in a patient with toxic epidermal necrolysis after taking salazopyrin. We studied cell surface markers, natural killer cell activity and mitogen-induced lymphocyte transformation. Our results point to temporary immunosuppression as evidenced by lymphopenia with a large "null cell" population, reduced natural killer cell activity, and impaired lymphocyte response to mitogens.

Acute Disease↗
PubMed1991

Splendore-Hoeppli phenomenon in Pityrosporum folliculitis (pseudoactinomycosis of the skin).

Actinomyces-like granules showing the Splendore-Hoeppli phenomenon have been demonstrated in histologic material, e.g. uterine curettings, in various conditions unrelated to genuine actinomycotic infection. The exact nature of the granules and the mechanism of their formation is open to speculation. We report two patients with a follicular skin eruption (Pityrosporum folliculitis) where pseudoactinomycotic granules were found in the skin biopsies. To the best of our knowledge, such findings have not previously been reported, but supposedly they are not rare. In order to avoid an incorrect diagnosis of actinomycosis, and unnecessary therapy, it is important to be familiar with the phenomenon.

Actinomycosis↗
PubMed1991

Systemic interferon alpha-2b increases the cure rate in laser treated patients with multiple persistent genital warts: a placebo-controlled study.

Systemic treatment modalities for eradication of multiple therapy resistant genital warts are so far not available. In this study laser treated patients with multiple genital warts received postoperatively either interferon alpha-2b subcutaneously (s.c.) 5 x 10(6) IU or matching placebo three times weekly for four weeks. At the conclusion of the study, 6-8 weeks after discontinuation of therapy, a significantly higher cure rate was found in the group of interferon-treated patients (14 of 27 (52%) patients cured) than among placebo treated patients (5 of 22 (23%) patients cured) (p less than 0.05). The side effects of fever, chills, myalgia, headache and leukopenia occurred more commonly in the interferon treated group than in the placebo group. However, only three of 32 patients discontinued interferon therapy because of side effects. We conclude that the addition of s.c. administered interferon alpha-2b to laser treated patients with chronic therapy resistant genital warts is fairly well tolerated and that it significantly enhances the chance of eliminating the disease.

Adult↗
PubMed1989

Use of sodium-chloride separated human skin in detection of circulating anti-basement membrane zone antibodies.

The sensitivity of the indirect immunofluorescence (IIF) technique for detection of circulating basement membrane zone (BMZ) antibodies was evaluated, employing NaCl-separated human skin and intact skin as substrate. Consecutive serum samples from 12 patients with clinically, histologically and immunohistologically verified bullous pemphigoid (BP) were investigated in parallel on both substrates, in dilutions ranging from 1:10 to 1:1,280. All BP sera showed linear deposits of IgG at the BMZ on intact skin, with titres ranging from 10 to 160. On NaCl-separated skin, all BP sera produced a linear epidermal fluorescent band for IgG, with titres ranging from 80 to 1,280. None of the sera showed deposits of IgM anti-BMZ antibodies. Sera from 5 healthy donors (dilutions 1:10) produced no fluorescence, either on intact or on NaCl-separated skin. The serum-titres of circulating anti-BMZ IgG antibodies in 2 patients with corticosteroid-resistant BP were significantly reduced (from 160 to less than 10) during treatment with plasmapheresis, when using NaCl-separated skin as substrate for IIF, whereas the serum-titres showed insignificant reduction (from 20 to less than 10), when using intact skin as substrate. We conclude that the IIF method is more sensitive for detection of circulating anti-BMZ antibodies, when NaCl-separated skin as compared with intact human skin is employed as substrate.

Antibodies↗
PubMed1987

Fundus fluorescein angiography in generalized scleroderma.

Fundus affliction with generalized scleroderma was studied in 21 patients by ophthalmoscopy, fundus ocular photography and fluorescein angiography. Slitlamp examination of the anterior chamber, the iris and the lens revealed no evident affections. Neither did ophthalmoscopy reveal obvious abnormalities related to scleroderma. Abnormalities of pigmentation were not noted. Visual acuity was normal in 20 patients, and 1 patient had reduced visual acuity due to macular degeneration. Fundus fluorescein angiography was within normal physiological variation in 14, and definitely abnormal in 7 patients as assessed independently by 2 ophthalmologists. Angiographic abnormalities consisted of variable hyperfluorescence of the pigment epithelium layer, and, additionally, in 2 cases minute hyperfluorescence of the retinal layer. These angiographic abnormalities indicated affection of the retinal pigment epithelium probably caused by a vascular lesion of the choroidal layer. Retinal vessels were in general not affected. In conclusion, the choroidal vasculature appears affected in 1/3 of patients with generalized scleroderma as assessed by fundus fluorescein angiography.

Adult↗
PubMed1986

Psoriasiform napkin dermatitis.

A prognostic study of 18 patients with a diagnosis of psoriasiform napkin dermatitis was performed. The observation period had a duration of 7 to 15 years. Two patients developed psoriasis and two developed atopic dermatitis.

Candidiasis↗
PubMed1985

Vitamin D metabolites in generalized scleroderma. Evidence of a normal cutaneous and intestinal supply with vitamin D.

Vitamin D metabolites in serum were analysed in 20 patients with generalized scleroderma. The concentration of 1,25-dihydroxyvitamin D was normal, however, significantly lower concentrations (p less than 0.05) were found in 7 patients with cutaneous calcinosis in comparison with 13 patients with no calcinosis. Concentrations of 25-hydroxyvitamin D, 24-25-dihydroxyvitamin D, and vitamin D-binding protein (Gc globulin) were all within the normal range. The 24,25-dihydroxy-vitamin D level correlated with the duration of disease (r = 0.4453, p less than 0.05), and 25-hydroxyvitamin D tended to correlate (r = 0.3016, NS). The study strongly indicates that cutaneous synthesis, intestinal absorption and hepatic hydroxylation of vitamin D are not deficient in scleroderma. A relative but specific decrease in the renal hydroxylation to 1,25-dihydroxyvitamin D, i.e. the active hormone, as the disease progresses and calcinosis occurs, is suspected.

Adult↗
PubMed1983

Bone mineral content in systemic sclerosis measured by photonabsorptiometry.

The bone mineral content of the radius in 37 patients with systemic sclerosis was measured with Americium241 photon absorptiometry. The content was found reduced (p less than 0.05) in patients with systemic sclerosis compared with a group of healthy controls matched for age and sex. Analyses of calcium 'total', calcium ion, phosphate and the parathyroid hormone level in the serum, and the excretion of calcium and phosphate in the urine all proved normal. It is discussed whether the reduced bone mineral content in systemic sclerosis may be an effect of the immobilization of the hands affected by the disease.

Adult↗
PubMed1983

Radiological changes of the hands in systemic sclerosis.

Radiological examination of the hands was performed in 41 patients with systemic sclerosis. Pathological changes were found in 39 patients. Eighteen patients had subcutaneous calcifications and 11 had atrophy of the finger pulps. Bone resorption of ungual tufts was found in 11 patients. Juxta-articular osteoporosis was seen in 9 patients and periarticular bone erosions in 8 patients indicating erosive arthropathy. Osteoarthritis and generalized osteoporosis were seen in 10 and 7 patients, respectively. Radiological examination of the hands is recommended during treatment.

Adult↗
PubMed1983

Does long-term treatment with D-penicillamine alter calcium and phosphorus metabolism in patients with systemic sclerosis?

Only animal experiments have been published regarding the possible effect of penicillamine treatment on mineral balance. We examined 35 patients with a diagnosis of systemic sclerosis treated with penicillamine, in comparison with 10 patients with systemic sclerosis treated with other collagen inhibitors (glutamine, hydralazine, phenytoin, chlorpromazine). The following laboratory tests were performed in all patients: the serum concentrations of calcium, ionized calcium, phosphorus and the parathyroid hormone. The 24-hour urinary excretions of calcium and phosphorus were determined. The bone mineral content of the distal radius was determined by photon-absorptiometry; radiological examination of the hands was performed to show aberrant calcifications. No differences were found between the two groups. A low urinary excretion of calcium and phosphor was found in the entire material. The bone mineral content was low in both groups. A high frequency of aberrant calcifications was not correlated to treatment with penicillamine.

Adult↗