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Myenteric plexus-longitudinal muscle strips isolated from the small intestine of rats were incubated with [3H]choline to measure the synthesis and the release of [3H]acetylcholine. To separate different radioactive compounds (acetylcholine, choline, phosphorylcholine) from both the tissue and the overflow a new method, the reverse phase HPLC, was used. The(More)
Electrically-evoked release of [3H]acetylcholine from autonomic neurons (myenteric plexus), motoneurons (phrenic nerve) and the central nervous system (neocortex) was investigated in the presence and absence of the calcium channel antagonists omega-conotoxin GVIA, nifedipine and verapamil, whereby the same species (rat) was used in all experiments. Release(More)
Implantation of self-expandable metal stents was planned for 21 patients (12 women, 9 men; mean age 64.7 +/- 11.6 [38-80] years) with malignant obstructive jaundice due to complex hilar biliary obstruction (Bismuth II: n = 5, Bismuth III: n = 13, Bismuth IV: n = 1, state after hepaticojejunostomy: n = 2). Stents were implanted bilaterally in 18 patients(More)
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