Drugs online research references
Dig Dis Sci. 2001 Oct;46(10):2134-9.
Endogenous gastrin stimulates regeneration of remnant pancreas after partial pancreatectomy.
Kim SW, Kim KH, Park SJ, Her HH, Jang JY, Park YH.
Department of Surgery, Seoul National University, College of Medicine, Korea.
The purpose of this study was to evaluate the effect of endogenous gastrin on pancreatic regeneration after a partial pancreatectomy in the rat. Sixty rats were divided into 6 groups. Groups I and II received sham operation (splenectomy only), and groups III, IV, V, and VI received both 66% partial pancreatectomy (PPx) and splenectomy. Endogenous hypergastrinemia was induced in groups II, IV, and VI by gavage of Lansoprozole (LSP) for three weeks. In groups V and VI, gastrin receptor blocker, L365,260, was given continuously using an osmotic minipump. Following three weeks of treatment, PPx alone increased the pancreatic weight and protein content, but not RNA or DNA content (Group III). In the PPx groups, the pancreatic weight, and contents of protein, RNA, and DNA were significantly increased in the LSP treated rats (Group IV). This effect was abolished by L365,260 (Group VI). This results suggest that endogenous gastrin specifically stimulates regeneration of the remnant pancreas after partial pancreatectomy in rat. Induction of endogenous hypergastrinemia may be useful in patients following pancreatic resection for the prevention and treatment of pancreatic insufficiency.
online pharmacy ref source: www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11680587&dopt=Abstract
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post.harvard.edu
BACKGROUND: Helicobacter pylori eradication triple therapy with a combination of lansoprazole, amoxicillin and clarithromycin was approved in Japan in September 2000. AIM: To compare the cost-effectiveness of this eradication therapy with conventional histamine-2 receptor antagonist therapy in Japan. METHODS: We established two Markov models for gastric and duodenal ulcers. The model design was based on the Japanese H. pylori eradication guideline and a specialist's opinions, and the model inputs were obtained from a literature review. The models predict the direct medical costs, number of disease-free days and cost per disease-free day for 5 years. RESULTS: In the gastric ulcer model, the expected total costs of eradication and conventional therapies per patient were yen169 719 and yen390 921, respectively; the expected numbers of disease-free days were 1454 days and 1313 days, respectively. In the duodenal ulcer model, the expected total costs were yen134 786 and yen324 689, respectively; the expected numbers of disease-free days were 1503 days and 1387 days, respectively. The sensitivity analyses showed that the results of the base case analysis were robust. CONCLUSIONS: This eradication therapy is less costly and more effective than conventional therapy for the treatment of gastric and duodenal ulcers in a Japanese medical setting.
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gihep.uab.edu
BACKGROUND: The majority of patients with Zollinger-Ellison syndrome require lifelong treatment with proton pump inhibitors. AIMS: To determine the efficacy of lansoprazole control of acid and pepsin secretion over the long term in Zollinger-Ellison syndrome and non-Zollinger-Ellison syndrome hypersecretors. METHODS: Sixty-three hypersecretors (basal acid output > 15 mmol/h), 46 Zollinger-Ellison syndrome and 17 non-Zollinger-Ellison syndrome, with a total history of 15.4 and 19.2 years, respectively, were entered into a long-term prospective study using lansoprazole. Sixty-one were studied every 3 months for 1 year and then every 3-6 months up to 10 years during lansoprazole treatment with endoscopy, serum gastrin and gastric analysis, measuring both basal and stimulated pH and acid and pepsin secretion. Doses were individually optimized and adjusted to keep the basal acid output at < 5 mmol/h in intact patients and < 1 mmol/h in antrectomized Zollinger-Ellison syndrome patients. RESULTS: The dose of lansoprazole could not be predicted a priori from pre-treatment acid or pepsin output, serum gastrin, prior omeprazole dose or diagnosis or prior complications. The median dose was approximately 80 mg/day, with a wide range from 15 mg every other day to 360 mg/day, and generally stabilized by 12 months. However, as doses were adjusted over time for indications, almost half the patients required higher doses. With adjustments, the basal acid output was maintained in the target range in > 90% of intact patients and in 80% of antrectomized patients. Gastric juice pH increased from approximately 1.2 before therapy to > 3.4 during therapy. Serum gastrin in Zollinger-Ellison syndrome patients, after excluding five outliers, did not change over the course of therapy, but doubled in non-Zollinger-Ellison syndrome patients. There were no adverse events due to lansoprazole, and routine laboratory studies remained normal. CONCLUSIONS: The dose of lansoprazole for hypersecretors cannot be predicted, and thus needs to be optimized empirically on an individual basis. With continued periodic adjustments, almost half the patients required increased doses, while safe dose reduction was possible in only one-quarter. When individually optimized, lansoprazole proved to be safe and effective in the control of secretion for the treatment of both Zollinger-Ellison syndrome and non-Zollinger-Ellison syndrome hypersecretors for up to 10 years.
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