Gap junction channels permit the direct intercellular transfer of ions and small molecules and allow electrotonic coupling within tissues. Porcine aortic endothelial cells were extensively coupled, as assessed by gap junctional transfer of Lucifer yellow and the fluorescent calcium indicators fluo-3 and furaptra, but were not permeable to rhodamine B isothiocyanate-dextran 10S. The subunit comp...

............................................................................................................................................ 3 Abbreviatons ...................................................................................................................................... 4 Introduction ..............................................................................................

The effects of temperature on the relationships among the rates of pyruvate carboxylation, O(2) uptake (J(o)), oxidative phosphorylation (J(p)), and the free energy of ATP hydrolysis (G(p)) were studied in liver mitochondria isolated from 250-g female rats. Pyruvate carboxylation was evaluated at 37, 40, and 43 degrees C. In disrupted mitochondria, pyruvate carboxylase maximal reaction velocity...

0.094 ----TSB 37°C Baciillus sp. Clone 35 23 0.047 ----TSB 37°C Bacillaceae bacterium C22 21 1.7 ----BA 37°C Bacillus cereus 43 0.75 ----BA 30°C 38 0.5 ----TSB 30°C Bacillus fusiformis 14 1.5 ----BA 37°C Bacillus aquimaris 45 1.2 CXM30 4.25mm BA 30°C Bacillus pumilus 48 3.5 ----R2A 37°C Bacillus megaterium 32 0.064 ----BA 30°C 42 0.75 ----TSB 37°C 19 0.25 ----TSB 30°C 18 0.38 CXM30 1.75mm LB 37°C

p 16 Materials and Methods p 17 Results p 22 Discussion p 29 Conclusions p 33 Second study: pituitary tumor surgery Pituitary tumor surgery via transsphenoidal approach. Part I: A study comparing otorhinolaryngologists and neurosurgeons operating by transnasal route, using recording of surgical processes p 35 Abstract p 36 Materials and Methods p 37 Results p 43 Discussion p 50 Conclusions p 52...