[Bacterial sacroiliitis caused by group B streptococci].

A 12-year-old girl was admitted to the paediatric department due to a short history of severe pain in the right hip, inability to walk and fever, 39 °C. She had had no previous trauma or ongoing infection elsewhere. Examination showed a septic girl with pain of the right sacroiliac joint.

A caffeine-sensitive Ca2+ store modulates K+-evoked secretion in chromaffin cells.

Catecholamine release from bovine adrenal medulla chromaffin cells superfused with a Krebs-N-2-hydroxyethylpiperazine-N'-2-ethanesulfonic acid solution was monitored on-line with an electrochemical detector. Caffeine (10 mM) progressively depressed the magnitude of secretory responses to depolarizing pulses of 70 mM K+ and 2 mM Ca2+ (70 K+/2 Ca2+) in cells superfused with a Krebs-N-2-hydroxyethylpiperazine-N'-2-ethanesulfonic acid solution containing 0 mM Ca2+ + 0.5 mM EGTA; blockade reached 80% at the third 70 K+/2 Ca2+ challenge given in the presence of caffeine.