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Biomedical subjects

K G Jensen

Publications and source records attributed to K G Jensen.

At least 37 records · Page 2Linked to original sources
PubMed1983

Freeze-fracture analysis of phloem structure in plant tissue cultures. III. P-Protein, sieve area pores, and wounding.

Phloem sieve elements in small nodules of callus tissue have open sieve pores and scattered P-protein when the tissue is fixed intact. Intentionally slicing the nodules prior to fixation results in the formation of wound responses, including an alteration in P-protein distribution and the formation of plugged sieve pores. Freeze-fracture replicas show well-preserved P-protein as randomly oriented filaments in intact sieve elements. Wounded sieve elements, however, demonstrate dense bundles of oriented P-protein filaments in freeze-fracture replicas. Open pores with few P-protein filaments are seen in replicas of undamaged sieve elements. These callus nodules can be used as a model system to investigate phloem structure, function, and wounding.

Cell Membrane↗
PubMed1977

Cimetidine in patients with gastric ulcer: a multicentre controlled trial.

Forty-five adult outpatients with endoscopically confirmed gastric ulceration completed a double-blind trial of either cimetidine (1 g/day) or placebo. After six weeks 18 of the 23 patients receiving cimetidine showed complete ulcer healing compared with only six of the 22 patients receiving placebo. The cimetidine group also had fewer days with pain than the placebo group but the difference was not statistically significant. Cimetidine therefore seems to promote healing of gastric ulcers without severe side effects, although its effect on pain is less pronounced than in patients with duodenal ulcers.

Adult↗
PubMed1970

[Plasmapheresis].

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Blood Donors↗