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Biomedical subjects

J Popp

Publications and source records attributed to J Popp.

40 records · Page 3Linked to original sources

In situ Raman investigation of single lipid droplets in the water-conducting xylem of four woody plant species.

A micro-Raman spectroscopy approach was used for the direct in situ characterization of lipid bodies in the water-conducting branch xylem of an African resurrection plant and three deciduous European tree species. Because of average diameters of at least 1 microm, the lipid bodies of all investigated species proved to be easily accessible by this technique. All vesicle-forming xylem lipids were identified as fatty acid esters, which may correspond to phospholipids. Whereas in the resurrection plant saturated lipids were dominant, the lipid bodies of the European trees consisted of highly unsaturated fatty acids. A comparison of the spectra of lipid droplets of lime obtained in situ and from isolated xylem sap revealed slightly different signatures. This finding suggests that micro-Raman spectroscopy may be used to detect modifications of the chemical composition of biological substances as a result of the extraction mode.

Biophysical Phenomena↗

A retrospective review of the burn intensive care unit admissions for a year.

One hundred twenty-three patients who were admitted to the University of Florida burn intensive care unit during a 1-year period were included in this retrospective study. The average age of the patients was 28 years (range 3 months to 90 years), and the average size of the total body surface area burned was 18%, with 7% full-thickness burns. The average hospital stay of each patient was 17.46 days. One hundred twelve operations were carried out in the burn unit's operating room with a circulating nurse from the registered nursing staff of the burn intensive care unit. No major complications occurred during the procedures. There were 1689 hydrotherapies and 2496 splint days. No significant loss of function of the patients' extremities developed while the patients were in the burn intensive care unit after the 112 debridement and skin grafting procedures were done. During the year, 365 follow-up examinations were done on previously discharged patients in the outpatient clinic area of the burn intensive care unit, which gave the doctors, registered nurses, and therapists an opportunity to determine their patients' progress. During the past year 537 separate pieces of compression garments were fitted.

Adolescent↗