Fixed point theorems in metric spaces and probabilistic metric spaces

In this paper, we prove some common fixed point theorems for compatible mappings of type (A) in metric spaces and probabilistic metric spaces Also, we extend Caristi's fixed point theorem and Ekeland's variational principle in metric spaces to probabilistic metric spaces

Transport of organic compounds in renal plasma membrane vesicles of cadmium intoxicated rats

Transport of organic compounds in renal plasma membrane vesicles of cadmium intoxicated rats. Effects of cadmium intoxication on renal transport systems for various organic compounds were studied. Subcutaneous injections of CdCl2 (2mg Cd/kg · day) for two to three weeks induced marked polyuria, glycosuria, and proteinuria without altering glomerular filtration rate. In renal cortical brush border membrane vesicles (BBMV) isolated from cadmium treated rats, Na+-dependent D-glucose uptake was markedly attenuated, and this was due to reduction in Vmax and not Km. Likewise, Na+-driven L-glutamate transport and H+-driven tetraethylammonium transport were significantly reduced. In renal cortical basolateral membrane vesicles (BLMV) of cadmium intoxicated rats, Na+-dependent succinate transport was drastically reduced. These results indicate that cadmium intoxication impairs various transport systems for organic compounds in the brush border and basolateral membranes of proximal renal tubules