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H B Rasmussen

Publications and source records attributed to H B Rasmussen.

60 records · Page 4Linked to original sources

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↗

Study of Vibrio anguillarum strains from different sources with emphasis on ecological and pathobiological properties.

A total of 317 Vibrio anguillarum strains were isolated from water, sediment, and diseased as well as healthy rainbow trout at a Danish mariculture farm and from feral fish caught close to the farm. All strains were examined serologically. Ten sera permitted determination of the O group in 66.7% of the strains from diseased rainbow trout. Furthermore, the O group could be determined in 45.1 to 65.4% of the strains from mucus, gills, and intestinal contents of healthy rainbow trout, while only 22.2 to 28.8% of the isolates from water, sediment, and gills or mucus of feral fish were groupable. Serogroup O1 and to some extent O2 appeared to be associated with trout. Strains from these serogroups were selected for analyses of hemagglutinating activity and surface hydrophobicity. Serogroup O1 comprised hemagglutinating as well as nonhemagglutinating strains; from cases of vibriosis, all O1 strains were nonhemagglutinating. The strains belonging to serogroup O2 were generally hemagglutinating. Examinations of surface hydrophobicity by salt aggregation and hydrophobic interaction chromatography suggested that the O1 strains were more hydrophobic than the O2 strains. In pathogenicity tests, O1 strains isolated from gills and mucus of healthy rainbow trout killed all trout in the test groups. A strain from the intestinal contents of healthy rainbow trout did not produce significant mortality. This strain could, however, be frequently reisolated from the pronephros of fish in the test group concerned. After challenge with strains from eel mucus and seawater, mortality was not produced, and furthermore, these strains could not be reisolated from the pronephros.

Animals↗

Apolipoprotein D is associated with long-term outcome in patients with schizophrenia.

Accumulating evidence implicates deficiencies in apolipoprotein D (ApoD) function and arachidonic acid signaling in schizophrenic disorders. We addressed two hypotheses in relation to ApoD: first, polymorphisms in the ApoD gene confer susceptibility to or are markers of disease, and, second, genetic variation in the ApoD is associated with long-term clinical outcome to antipsychotic treatment. We genotyped two single-nucleotide polymorphisms in the ApoD gene in 343 chronic patients with schizophrenia spectrum disorders (ICD-10) and 346 control subjects of Danish origin. We did not find ApoD alleles, genotypes or haplotypes to be associated with disease. However, we did find that long-term clinical outcome was associated with the ApoD polymorphism rs7659 (P = 0.041) following adjustment for lifetime clinical global impression, age at first admission and gender.

Adult↗