The sulphydryl reagent thimerosal (50 microM) released Ca2+ from a non-mitochondrial intracellular Ca2+ pool in a dose-dependent manner in permeabilized insulin-secreting RINm5F cells. This release was reversed after addition of the reducing agent dithiothreitol. Ca2+ was released from an Ins(1,4,5)P3-insensitive pool, since release was observed even after depletion of the Ins(1,4,5)P3-sensitiv...

Synovial tissue from 3 patients with villonodular synovitis has been examined by quantitative cytochemistry. Considerable changes in the metabolism of the synoviocytes have been observed. These included a massive rise in the activity of glucose 6-phosphate dehydrogenase to levels even greater than those found in rheumatoid arthritis, and a significant rise in the activity of 2 glycolytic enzyme...

530 British Journal ofGeneral Practice, August 2011 ADVANTAGESOVEREXISTING TECHNOLOGY Earlier diagnosis of capillary blood ketones associatedwithhyperglycaemia facilitates the prevention of ketoacidosis, as well as prompt treatment.1 Urine ketone strips are semiquantitative and measurements do not accurately reflect current conditions if the urine has been in the bladder for several hours (for ...

We detected no difference in the reduced glutathione content of erythrocytes obtained from patients with rheumatoid arthritis (RA) and controls. The stability of glutathione to oxidative stress (cumene hydroperoxide) was also the same. Although measured in the erythrocyte, our results indicate that changes in intracellular reduced glutathione are not involved in the aetiology of RA. Serum from ...

BACKGROUND AND PURPOSE Reduction of cerebral blood flow and vasomotor reactivity (VMR) are thought to play an important role in the pathogenesis of cerebral microangiopathy. The aim of our study was to determine whether near-infrared spectroscopy (NIRS) can detect a reduced VMR in patients with microangiopathy, whether NIRS reactivities correlate with VMR assessed by transcranial Doppler sonogr...