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Biomedical subjects

H J Juhl

Publications and source records attributed to H J Juhl.

6 recordsLinked to original sources
PubMed2001

An extensive maxillary pneumosinus dilatans.

Pneumosinus dilatans is a very rare lesion. An aggressive case of a maxillary pneumosinus dilatans is presented. CT and MRI showed that the lesion involved the orbit, cheek and nasal cavity. A reopening to the affected maxillary sinus as a FESS procedure was performed with success.

Adult↗
PubMed2000

Antecedents and effects of consumer involvement in fish as a product group.

The importance of the symbolic value and of the product utility for a consumer's involvement in fish products was determined by applying a model to data collected in Denmark in 1999. The relative importance of these two antecedents of product involvement differed between two segments of consumers important to marketing strategies. However, the potential effects of involvement did not differ between the segments. Rather, the customer's involvement ensures that sign value and utility have effects such as greater enjoyment of shopping and higher frequency of usage.

Behavior↗
PubMed1980

Sister-chromatid exchange induction by metabolically activated retinoids in human diploid fibroblast cultures.

13-cis-Retinoic acid, retinyl-mthyl-ether, retinyl-phenyl-ether, retinyl-thio-ether and axerophthene each induced dose-dependent sister-chromatid exchanges (SCE) in human diploid fibroblasts. The functional relationship between retinoid concentration and SCE rate was similar in each of the 5 retinoids tested. The relationship reached a plateau at concentrations exceeding 8 micrograms/ml. alpha-Naphthoflavone (ANF), an inhibitor of P448-dependent mono-oxygenase, prevented the retinoid-induced increase of the SCE rate, but had no inhibitory effect in the presence of 4-nitroquinoline-1-oxide, an ultimate carcinogen. ANF did not reduce the spontaneously increased SCE rate in fibroblasts of patients with Bloom's syndrome. Retinoids failed to induce SCE in V79 Chinese hamster cells, which lack mono-oxygenase. Thus, we conclude that the retinoid-induced SCE rate increases independently of structural changes in the molecular side-chain ad that a metabolic activation of retinoids is required for SCE induction by cytochrome P448-dependent mono-oxygenase.

Abnormalities, Multiple↗
PubMed1978

Retinoids induce sister-chromatid exchanges in human diploid fibroblasts.

Vitamin A palmitate, retinoic acid and an aromatic retinoic acid analogue (Ro 10-9359) induced sister-chromatid exchanges (SCE) in human diploid fibroblasts. The same SCE level was reached with the 3 compounds tested, when the concentration of vitamin A palmitate was 10 times higher than those of retinoic acid and Ro 10-9395. No correlation was found when the dose-related SCE induction of a retinoid was compared with the respective antineoplastic activity as reported by others.

Chromosome Aberrations↗