Search results for "Rat kidney"
showing 4 items of 4 documents
Ablagerungen von Lipidmaterial in der Niere bei Ratten nach Verf�tterung von autoxydierten Fetten
1963
Nach Verfutterung von autoxydierten Olen traten bei Ratten im Nierenmark Ablagerungen auf, bei denen es sich nach ihren Reaktionen vorwiegend um Lipidmaterial handelt. Daneben enthielten sie noch Calcium und Eisen.
Purification and Characterization of Acidic Glutathione S-Transferases (EC 2.5.1.18) from Rat Kidney
1988
Glutathione S-transferases (EC 2.5.1.18) (GSTs) are present in almost every mammalian tissue and catalyze the conjugation of glutathione (GSH) with different electrophilic substrates (Habig et al. 1974). In contrast to this deactivation function of GSTs, they also appear to be involved in the activation of certain chemicals, and particularly halogenated compounds, in either the liver or extra-hepatic tissues (even the kidney) to nephrotoxic and potentially nephrocarcin-ogenic products (Anders et al. 1987, Dekant et al. 1986, Elfarra and Anders 1984, Igwe 1986). These previous results confirm the necessity of a deeper insight into the GSH conjugation system of the kidney: firstly, because of…
O2 Supply Conditions in Tumor Tissue in Vivo
1976
During the last few years O2 supply of tumor tissue has very carefully been investigated using GULLINO’ s model of a “tissue isolated” implantation tumor (GULLINO and GRANTHAM, 1961; GUNTHER et al., 1972; VAUPEL et al., 1971; VAUPEL, 1974). We analysed the O2 supply for a DS-Carcinosarcoma in the rat kidney by two methods: 1. direct measurement of O2 pressures in the tissue by means of gold micro-electrodes, 2. PO2 calculation according to diffusion laws considerring the experimentally determined parameters in the arterial and venous blood.
Oxygen diffusivity in tumor tissue (DS-Carcinosarcoma) under temperature conditions within the range of 20?40�C
1977
The O2 diffusion constants D and K of tumor tissue (DS-Carcinosarcoma in the rat kidney) were determined at temperatures of 20, 30, 37, and 40 degrees C. The following mean values were obtained for the conditions of 37 degrees C: D = 1.75-10(-5) cm2/s and K = 1.9-10(-5) mlO2/cm-min-atm. Within the range of 20-40 degrees C, temperature variations in tumor tissue cause changes in the O2 diffusion coefficient D of 2.0-2.5%/C and in the Krogh O2 diffusion constant K of 0.5-1.5%/C. The measured O2 diffusion constants for tumor tissue correspond to values of normal tissue with similar water content. This indicates that the insufficient O2 supply in DS-Carcinosarcoma is due not to unfavorable O2 d…