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Biomedical subjects

N K Veien

Publications and source records attributed to N K Veien.

At least 19 recordsLinked to original sources

[HIV testing and HIV surveillance of a venereological clientele in Denmark].

The object of this investigation was to evaluate the suitability of unlinked anonymous HIV screening of persons visiting one of eight out of the nine Danish clinics for venereal diseases in the national HIV surveillance. Data were collected during the period July 1, 1990-March 31, 1991 and included: gender, sexual orientation, history of intravenous drug use (IVDU), syphilis testing and HIV testing. A total of 7,455 persons participated of whom 75% were tested for HIV antibodies. The HIV test activity was significantly higher among male IVDUs than homo/bisexuals, and higher among female IVDUs than heterosexuals. The overall HIV prevalence among tested individuals was 0.6%, ranging from 0.1% among heterosexual women to 5.3% among female IVDUs. A total of 81% were tested for syphilis with an overall HIV prevalence of at least 1.1%, ranging from 0.2% among heterosexuals to 9.3% among homo/bisexual men. Since the non-participation is great and the venereological clientele is very heterogeneous, using blood taken for syphilis serology from this group for unlinked anonymous HIV screening, would not be particularly important as a supplement to the Danish HIV surveillance.

Denmark

[Aluminum allergy caused by DTP vaccine].

All children referred to two private dermatological practices from 1 Jan. 1985 to 31 Dec. 1990 who had pruritus and subcutaneous infiltrates in the areas of immunization with Di-Te-Pol vaccine were patch tested with a Finn Chamber or with 2% aqueous aluminium chloride. Di-Te-Pol vaccine contains aluminium hydroxide. Contact allergy to aluminium was demonstrated in 32 children (20 girls and 12 boys). Of the three patch test methods used, testing with 2% AlCl3 occluded with a Finn Chamber proved to be the most sensitive. Immunization of children who have been shown to be allergic to aluminium should be carried out with vaccines which do not contain aluminium.

Aluminum

Vaccination granulomas and aluminium allergy: course and prognostic factors.

21 children who had cutaneous granulomas following immunization with a vaccine containing aluminium hydroxide, and who had positive patch tests to aqueous aluminium chloride and/or to a Finn Chamber, were followed for 1 to 8 years. During the period of observation, the symptoms cleared in 5 children, improved in 11, and remained unchanged in 5. The course of the granulomas could not be correlated with sex or atopy, nor with intensity of the initial aluminium patch test. 4 children were patch tested again with aluminium.

Adolescent

Topical metronidazole in the treatment of perioral dermatitis.

The twice-daily topical application of 1% metroindazole cream was compared with 250 mg oral tetracycline, taken twice daily, in the treatment of perioral dermatitis in a prospective, double-blind, double-dummy, randomized, multicenter trial. One hundred eight patients were treated for 8 weeks. At the end of this time the median number of papules in the metronidazole-treated group was reduced to 8% of the initial number, and the median number in the group treated with tetracycline was reduced to 0% of the initial number. Although both treatments were effective, oral tetracycline was significantly more effective than topical metronidazole.

Administration, Cutaneous

Contact sensitization to 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one (MCI/MI). A European multicentre study.

The frequency of positive reactions to 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one (MCI/MI) were studied at 22 European contact dermatitis clinics over a period of 1 year. A total of 4713 patients participated. All the patients were patch tested with nickel sulphate, formaldehyde, paraben-mix, and MCI/MI. 19.4% of the patients had positive patch tests to nickel, making this the most common allergen. 3% of the patients reacted to 100 ppm MCI/MI, while 2.6% reacted to formaldehyde and 1.1% to parabens. There was great variation in the frequency of MCI/MI sensitivity among the 22 centres. MCI/MI contact allergy was most common among women and in patients with facial dermatitis, while it was rarely seen in patients with dermatitis on the lower legs. There were no fluctuations in the number of positive patch tests to MCI/MI on a monthly basis when the results from all centres were combined. 117 of the 141 MCI/MI sensitized patients included in the study were retested. 88% had positive patch tests when retested. 101 of the MCI/MI-sensitive patients participated in a double-blind, placebo-controlled product use test. This test showed that 31% of the MCI/MI-sensitive patients had a positive reaction to a MCI/MI-preserved product. Only a few patients reacted to a control product. It is concluded that the preservative MCI/MI is an important new contact allergen.

Adolescent

Topical meclocycline sulfosalicylate, benzoyl peroxide, and a combination of the two in the treatment of acne vulgaris.

One hundred and six patients with acne vulgaris of the face were treated for 10 weeks with either topical meclocycline sulfosalicylate, topical benzoyl peroxide or both preparations. A randomized, double-blind parallel group study was used. Benzoyl peroxide proved more effective than meclocycline in reducing acne lesion counts, while local side effects were more common in the benzoyl peroxide-treated patients. The combined treatment was of intermediate efficacy with fewer local side effects.

Acne Vulgaris

Cutaneous vasculitis induced by food additives.

A case of leukocytoclastic vasculitis in a 24-year-old woman is described. A severe eruption of vasculitis occurred after placebo-controlled oral challenge with 50 mg ponceau. The patient was asked to adhere to a diet free from food additives, and the vasculitis faded after a period of 2 months.

Adult

Low nickel diet.

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Dermatitis, Contact

Nickel in nails, hair and plasma from nickel-hypersensitive women.

The concentrations of nickel in finger-nails, toe-nails, hair and plasma from 71 nickel-hypersensitive women and 20 non-hypersensitive women were determined. Nickel concentrations in finger-nails were significantly higher than in toe-nails in both the nickel-hypersensitive group and the control group. Nickel-sensitive women had significantly higher levels of nickel in toe-nails, hair and plasma than had control subjects, whereas there was no significant difference in nickel concentration in finger-nails between the two groups. No correlation could be demonstrated between nickel levels in any combination of nails, hair and plasma in the nickel-hypersensitive or in the control group.

Adolescent

Nickel contact allergy and a nickel-restricted diet.

More than half of nickel-allergic patients develop secondary eruptions, that is, dermatitis in areas of the skin that are not in obvious contact with nickel-plated items. Similar eruptions occur after placebo-controlled oral challenge with inorganic nickel salts. The possible relationship between ingestion of nickel in food and secondary eruptions in nickel-sensitive patients is discussed, making reference to the available literature. Recommendations are given for the management of patients suspected to have nickel dermatitis aggravated by nickel in food.

Administration, Oral

Clinical patch test data evaluated by multivariate analysis. Danish Contact Dermatitis Group.

The aim of the present study was to evaluate the influence of individual explanatory factors, such as sex, age, atopy, test time and presence of diseased skin, on clinical patch test results, by application of multivariate statistical analysis. The study population was 2166 consecutive patients patch tested with the standard series of the International Contact Dermatitis Research Group (ICDRG) by members of the Danish Contact Dermatitis Group (DCDG) over a period of 6 months. For the 8 test allergens most often found positive (nickel, fragrance-mix, cobalt, chromate, balsam of Peru, carba-mix, colophony, and formaldehyde), one or more individual factors were of significance for the risk of being sensitized, except for chromate and formaldehyde. It is concluded that patch test results can be compared only after stratification of the material or by multivariate analysis.

Adolescent