In addition to the 1 h incubation of Fab with antigen (Fig. 1), there were similar, specific-banding patterns after only a 15 min incubation of primary antibody (data not shown).
We did nine intercellular calcium experiments, with 8 10 randomly selected fields of view observed for each, during which real-time movies of 4.5 min were taken of primary astrocyte cultures at three time points (0, 15 and 30 min) under five conditions (control, Aβ, Aβ+thapsigargin, Aβ+BAPTA/AM and Aβ+BAPTA).
Figures4 and5 show an example of the 30 min mean values of primary and secondary NO2 at the LANUV station at the Graf-von-Galen-Ring in Hagen in July 2006.
Sheets were rinsed in three changes of 1 ml PBS/Tween, each for 3 min. Detection of primary antibody was achieved with an EnVision+ system-HRP (DAB) kit (Dako UK Ltd ,Cambridgeshire, UK) used according to manufacturers' specifications.
Sections were then incubated with 2% BSA/TBS for 30 min before application of primary antibody.
After a rinse in TBS (three times, 5 min) binding sites of primary antibodies were visualized by corresponding AF488, AF555 and AF647 tagged antisera (1 1000; Invitrogen, Karlsruhe, Germany) in TBS, containing 1% BSA and 0.5% Triton X-100 (1 hour at RT) followed by another rinse in TBS (three times, 5 min).
Incubation times were 90 min for primary.
After 60 min of incubation with primary antibody and 30 min of incubation with secondary antibody, color development was performed with DAB+ reagents (Dako).
Contrary to this, Gao et al.[ 47] have shown ROS production to be induced by 5 nM and 10 nM of rotenone after only 30 min of exposure in primary mesencephalic neuron glial cultures.
Cells were then incubated with PBS containing 3% bovine serum albumin (BSA) and 0.5% triton for 10 min, and PBS containing 3% BSA for 30 min before the addition of primary antibodies for 1 hour.
