This paper describes the anti-inflammatory, antipyretic and analgesic effects of Sudoxicam ( Sud) synthesized by Shenyang Pharmaceutic College.Sud is found to possess significant anti-inflammatory, antipyretic and analgesic quality in such animal models as carrayeenan-induced paw oedema ( ED50=5.26mg/kg ) , tylolinduced ear oedema in mice, adjuvant-induced arthritis in rats, yeast-induced fever in rats, acetic acid-induced arithing ( ED50= 5.0mg/kg ) and hot plate-induced pain reaction in mice.

The acute iv and ig LD50 of sudoxicam synthesized by Shanyan Ph-armaceutic College was calculated to be 135?10. 7 and 320 ? 96 mg/kg in mice. In polyarthritic rats, Sud at 2 and 4 mg/kg/d for 28 days did not induce changes in serum AKP, SGPT, BUN the morphal-ogic characteristics of the gastrointestinal tract, liver and kidney. In 3 dogs orally given Sud 16 mg/kg/d for 5 consecutive days, 2/3 died at days 10 to 13. In other 3 dogs given Sud 16 mg/kg/d every other day, plasma concentrations of Sud were determined by ultra violet spectrophotometry. It was found that on the days 10 to 20 , the concentration time curves had attained a intoxicant steady state with plasma sudoxicam concentrations as high as 44. 9 ? 73. 9?g/ml ,and all of them died after 17~25 days. Their bleeding time and coagu- lation time were prolonged to 2 or 3 times of the control and serum BUN was increased. In one dog autopsy revealed the interstitial inflammation of the kidney and small local necrosis of the live, but not in other dogs.Gastric ulceration in rats can be produced by the oral administration of verious doses of Sud. The UD50 of Sud was 15.47mg/kg. It was found that the gastric ulceration in rats is related to the plasma levels

As a new energy source for atrial fibrillation ablation, electric pulse ablation has higher tissue selectivity and biosafety, so it has a great application prospect. At present, there is very limited research on multi-electrode simulated ablation of histological electrical pulse. In this study, a circular multi-electrode ablation model of pulmonary vein will be built on COMSOL5.5 platform for simulation research. The results show that when the voltage amplitude reaches about 900 V, it can make some positions achieve transmural ablation, and the depth of continuous ablation area formed can reach 3 mm when the voltage amplitude reaches 1 200 V. When the distance between catheter electrode and myocardial tissue is increased to 2 mm, a voltage of at least 2 000 V is required to make the depth of continuous ablation area reach 3 mm. Through the simulation of electric pulse ablation with ring electrode, the research results of this project can provide reference for the voltage selection in the clinical application of electric pulse ablation.
Humans ; Heart Rate ; Atrial Fibrillation/surgery* ; Electrodes ; Catheter Ablation ; Electricity