Pylorus
Mostrando 25-36 de 71 artigos, teses e dissertações.
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25. Migração de clipe metálico para úlcera duodenal após colecistectomia videolaparoscópica: Ligaclip migration into a duodenal ulcer following laparoscopic cholecystectomy
We report a rare cause of pyloric stenosis caused by migration of surgical clips into a duodenal ulcer following laparoscopic cholecystectomy. Even after endoscopic removal of the clips the inflammatory reaction during the healing process caused a stenosis of the pylorus that eventually required a truncal vagotomy and gastroenterostomy.
Revista do Colégio Brasileiro de Cirurgiões. Publicado em: 2002-08
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26. Mechanism of antiulcerogenic activity of semi-synthetic crotonin obtained from Croton cajucara Benth.
The bark of Croton cajucara Benth. is used in Brazilian folk medicine to treat gastrointestinal disorders. Transdehydrocrotonin (DHC) isolated from the bark of Croton cajucara has antiulcerogenic activity25. The presence of similar activity in semi-synthetic crotonin obtained from dehydrocrotonin from Croton cajucara was observed in gastric ulcer-induced mod
Revista Brasileira de Farmacognosia. Publicado em: 2002
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27. Anastomose duodenoduodenal na pancreatoduodenectomia por pancreatite crônica
Literature has been showing a tendency of reducing the limits of Whipple's resection. The main technical advance was the pylorus preserving resection, technique proposed by Traverso and Longmire in 1978. The pancreticoduodenectomy for chronic pancreatitis, is probably the best opportunity to apply this type of procedure. In these specific patients, the autho
Revista do Colégio Brasileiro de Cirurgiões. Publicado em: 2001-04
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28. Atividade analgesica e antiulcerogenica de quatro extratos de diferentes polaridades obtidos a partir das cascas de Quassia amara L
Quassia amara L., is a small tree 2-6 m in height, which occur in northern Brazil, Venezuela, Surinam, Colombia, Panamá and Guiana; in Brazil, this species is cultivated from the border with Guiana to the state of Maranhão. The bark wood of this plant is reputed in traditional medicine as having antimicrobial, antianemic and antimalarial activities, as wel
Publicado em: 2001
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29. Atividade antiulcerogenica da desidrocrotonina e do oleo essencial obtidos a partir das cascas de Croton cajucara Benth, uma planta da familia Euphorbiacear
Croton cajucara Benth. (sacaca) is a plant species growing in the Amazon region which is popularly used to treat disorders of the digestive tract. We investigated the antiulcerogenic activity and the mechanism of action of the major constituents of the bark of the plant, i.e., the essential oil and dehydrocrotonin (OHC, a sesquiterpene lactone present in lar
Publicado em: 1999
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30. Desidrocrotonina : atividade antiulcerogenica, toxicidade e metabolização in vivo e in vitro
The major diterpene isolated from Cróton cajucar Benth trans-Dehydrocrotonin (DCD), was assayed for antiulcerogenic activity, acute and subcronic and toxicity and citotoxicity. The antiulcerogenic properties of DHC were studied on four induced gastric models in rat. The oral dose of 100 mg/Kg DHC showed a dignificance antiulcerogenic effect on hypothermic r
Publicado em: 1998
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31. Influencia das glandulas submandibulares, sublinguais e da saliva na secreção e na integridade da mucosa gastrica de ratos
There are evidences that besides contributing to digestion through the role of saliva in mastication, deglution and starch digestion, salivary glands produce biologic substances. Some of these substances, secreted in saliva or blood stream, affect gastric mucosal and influence its secretion and growth processo Epidermal Growth Factor ( EGF ), a polipeptide f
Publicado em: 1994
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32. Pyloric motility and liquid gastric emptying during barostatic control of gastric pressure in pigs.
1. In conscious pigs, intragastric pressure was controlled by a water barostat such that the gastroduodenal pressure gradient was always positive with the barostat set above 15 cm. In six pigs pyloric motor function was removed by prior pylorectomy. 2. In pylorus-intact animals, isolated pyloric pressure waves (IPPWs) occurred at a median of 2.9 min-1 during
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33. Gastric acid response to pylorus ligation in rats: is gastrin or histamine involved?
1. Pylorus ligation stimulated the acid output in vagally intact rats. The serum gastrin concentration and the gastric mucosal histamine content were not affected. The gastric histidine decarboxylase activity was initially slightly elevated and then greatly reduced (12-20 hr after ligation).
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34. Mechanism of histamine-induced excitation of the cat pylorus.
Intravenous histamine causes high amplitude repetitive phasic contractions of the in vivo cat pylorus but has little effect on the antrum and duodenum. The genesis of this phasic response was studied using a pinned perfused catheter with openings at the pylorus, antrum, and duodenum. 2-Pyridylethylamine, an H1 agonist, produced phasic contractions similar to
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35. Structure and innervation of the musculature at the gastroduodenal junction of the guinea-pig.
The musculature of the pylorus of the guinea-pig consists of a conspicuous ring of circular musculature. On one side, this tissue is apposed to the circular muscle layer of the duodenum, a complete septum of connective tissue intervening between the two muscles. On the other side, it is in continuity with the circular musculature of the gastric antrum. Bundl
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36. Organization of electrical activity in the canine pyloric canal.
1. The electrical activity of the canine gastroduodenal junction was investigated using cross-sectional muscle preparations and intracellular recording techniques. 2. Spontaneous electrical slow waves were recorded from antral and pyloric cells but not from duodenal cells adjacent to the pyloric region. Slow waves were generated in the antrum and propagated