Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Hiroyuki Shigemori"'
Publikováno v:
Atmospheric Environment. 39:3177-3185
We report on the development of a high-sensitive detection system for measuring atmospheric SO2 using a laser-induced fluorescence (LIF) technique at around 220 nm. Second harmonics of a tunable broad-band optical parametric oscillator (OPO) pumped b
Autor:
Kazuhiko Oho, Atsushi Toyonaga, Motoki Ikegami, Michihiro Sumino, Kyuichi Tanikawa, Tadashi Iwao, Hiroyuki Shigemori
Publikováno v:
Digestive Diseases and Sciences. 41:1727-1732
We have evaluated gastric mucus generation (study 1) and the effects of tetraprenylacetone on gastric mucus generation (study 2) in cirrhotic patients with portal hypertension. Study 1: Included were 50 noncirrhotics (group A), 25 cirrhotics without
Autor:
Atsushi Toyonaga, Tadashi Iwao, Kazuhiko Oho, Michihiro Sumino, Kyuichi Tanikawa, Masahiro Sato, Hiroyuki Shigemori
Publikováno v:
Journal of Gastroenterology and Hepatology. 11:216-222
The effects of vasopressin plus oxygen and vasopressin alone on gastric mucosal perfusion and oxygenation were studied using reflectance spectrophotometry and laser Doppler velocimetry in 23 cirrhotic patients with portal-hypertensive gastropathy. Th
Publikováno v:
Digestive Diseases and Sciences. 39:2433-2438
Gastric mucosal hyperemia associated with elevated serum gastrin level has been suggested in cirrhotic patients with portal hypertensive gastropathy (PHG). Clinical evidence has shown that these patients may benefit from propranolol administration. T
Autor:
Hiroyuki Shigemori, Kazuhiko Oho, Masafumi Nakayama, Ei Sasaki, Atsushi Toyonaga, Munenori Sakaki, Tadashi Iwao, Michihiro Sumino, Kyuichi Tanikawa, Motoki Ikegami
Publikováno v:
Journal of Hepatology. 21:515-520
Portal hemodynamics and transhepatic portal venographic findings were studied before and after prophylactic sclerotherapy (mean duration = 40 +/- 14 days) in 16 patients with high-risk esophageal varices. Portal pressure, evaluated by the portal veno
Autor:
Tadashi Iwao, Motoki Ikegami, Kazuhiko Oho, Atsushi Toyonaga, Hiroyuki Shigemori, Ei Sasaki, Masafumi Nakayama, Michihiro Sumino, Kyuichi Tanikawa, Munenori Sakaki
Publikováno v:
Journal of Hepatology. 19:345-352
The effects of a combination of vasopressin and a calcium channel blocker (nicardipine) on portohepatic hemodynamics and liver function were compared with the effects of vasopressin alone in 18 patients with portal hypertension. Nine patients receive
Autor:
Atsushi Toyonaga, Tadashi Iwao, Michihiro Sumino, Kyuichi Tanikawa, Kohsuke Takagi, Kazuhiko Oho, Hiroyuki Shigemori
Publikováno v:
Journal of gastroenterology and hepatology. 11(12)
We performed prophylactic sclerotherapy in 350 patients with 'high risk' oesophageal varices (F2 or F3 with a moderate or severe red colour sign). Of these patients, eight exhibited sclerotherapy resistance (i.e. no significant reduction in the size
Autor:
Chizuru Tayama, Tadashi Iwao, Hideo Masumoto, Teruhiro Sakai, Masahiro Sato, Kazuhiko Oho, Hiroyuki Shigemori, Atsushi Toyonaga, Kyuichi Tanikawa
Publikováno v:
Radiology. 200(3)
To compare hepatic artery hemodynamic response to altered portal blood flow in normal and cirrhotic livers.The portal blood flow and hepatic artery pulsatility index were measured by means of duplex ultrasound before and after subjects (eight control
Autor:
Atsushi Toyonaga, Kazuhiko Oho, Michihiro Sumino, Kyuichi Tanikawa, Hiroyuki Shigemori, Masahiro Sato, Tadashi Iwao
Publikováno v:
Journal of gastroenterology and hepatology. 11(1)
The reproducibility of echo-Doppler measurements of portal vein and superior mesenteric artery blood flow has not been extensively studied. In the present study, two groups of subjects were examined to test inter- and intra-observer reproducibility.
Publikováno v:
Gastrointestinal endoscopy. 41(5)
Omeprazole is a potent antisecretory drug that acts by inhibiting the gastric proton pump. In the present study, we have observed the effects of this drug on gastrointestinal mucosal perfusion, oxygenation, and hexosamine generation in humans. Sixtee