Biomedical subjects
Publications and source records attributed to G Ullrich.
A sensitive radioisotope dilution method was used to measure the S-adenosyl-L-methionine (AdoMet) content in macroplasmodia of the slime mold Physarum polycephalum during the mitotic cycle. The AdoMet pool had two maxima, one during mitosis, the other in the middle of G2 phase.
Children undergoing liver transplantation, and their parents, are regularly provided with psychological support by a team of social workers and psychologists in the Children's Hospital of the Medical School Hannover, Germany. We would like to highlight the structure of this psychosocial care and its development since the first liver transplantation in 1978. As most of the stress related to the procedures of transplantation is inevitable, emotional support provided by such a team approach is essential.
Tidal dialysis urea [NU] and total nitrogen [NT] clearances were obtained from nine patients, weighing 15-79 kg. Clearances normalized to a 70 kg body weight [nClr in ml/min/70 kg] increased with dialysate flow normalized to body weight [nFlow in ml/hr/kg]. The nClr [NU] = 6.862 + 0.352 x nFlow (r = 0.641, p less than or equal to 0.01). The nClr [NT] = 15.815 + 0.431 x nFlow (r = 0.460, p less than or equal to 0.01). Dialysate non-urea nitrogen [NT - NU] losses were 44.63 +/- 2.79 mg/kg daily, and these were altered minimally by the dialysate flow rate.
Antibacterial substances (ABS) in the hemolymph of Astacus leptodactylus were studied by agar-plate lysis and inhibition tests. The results demonstrate ABS against Gram-positive and Gram-negative bacteria. ABS against Gram-positive bacteria were identified as a lysozyme with a molecular weight of 14 kDa, heat resistance (< 50 degrees C) and lability to freezing. ABS against Gram-negative bacteria lost 50% of their activity at 50 degrees C and completely at 70 degrees C but were stable to freezing. Both ABS are inducible; they are produced and stored in the granular and semigranular hemocytes. Lysozyme is found in treated and untreated animals, ABS against Gram-negative bacteria only after induction.