• 제목/요약/키워드: proton pump

검색결과 180건 처리시간 0.029초

Omeprazole-cholestyramine resin 제제의 위산분비에 대한 억제효과 (The Inhibitory effect of omeprazole-cholestyramine resin in gastric secretion of rat)

  • 이영욱;김일웅;정지훈;라현오;최경범;이남인;손의동;허인회
    • Biomolecules & Therapeutics
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    • 제8권4호
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    • pp.318-324
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    • 2000
  • We have examined inhibitory erects on gasritis using omeprazole-cholestyramine resinate, which has been developed to increase the stability of omeprazole, the well-known proton pump inhibitor, in an acidic condition. To test the pharmacological action of this, we investigated the effect of omeprazole-cholestyramine resinate on indomethacin-induced gastritis in rats. Omeprazole was used as a reference drug. Orally administered omeprazole-cholestyramine resinate inhibited the indomethacin-induced gastritis in a dose-dependent manner. The inhibitory effect of omeprazole-cholestyramine resinate on the gastritis was similar to that of reference drug. In addition, rectal adminstration of the omeprazole-cholestyramine resinate inhibited the indomethacin-induced gastritis in a dose-dependent manner. The inhibitory effect of omeprazole-cholestyramine resinate was equipotent to reference drug. The basal gastric acid secretion was decreased when it was administered either orally or rectally. This inhibition of omfprazole-cholestyramine resinate was similar to that of omeprazole. These data suggest that omeprazole-cholestyramine resinate inhibit the gastritis in rats, and are comparable to omeprazole available in market.

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옥신 호르몬 결합단백질 ABP57 유전자를 이용한 작물의 형질개선 (Improvement of crop traits using auxin binding protein gene abp57)

  • 김동헌;이근표
    • Journal of Plant Biotechnology
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    • 제38권2호
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    • pp.137-142
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    • 2011
  • Auxin is a group of small natural and synthetic molecules having diverse regulatory functions in plant growth and development. In this review, two auxin binding proteins identified by biochemical experiments to measure their auxin binding activities and biochemical functions are described. ABP1, a 22 kDa auxin binding protein, shows strong auxin binding affinity and possibly plays an important role in plant development, although its biochemical function are still unclear. ABP57, a 57 kDa soluble protein from rice shoots, has both of IAA binding activity and the plasma membrane proton pump activation. Although it is yet to be accomplished, the improvement of agronomic traits using auxin binding proteins is worth to be considered, since auxin is known to be related to such a diverse crop traits.

Cytomegalovirus-associated esophageal ulcer in an immunocompetent infant: When should ganciclovir be administered?

  • Jang, Hyo-Jeong;Kim, Ae Suk;Hwang, Jin-Bok
    • Clinical and Experimental Pediatrics
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    • 제55권12호
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    • pp.491-493
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    • 2012
  • Cytomegalovirus (CMV)-associated esophageal ulcer is rare in immunocompetent infants. The presence of inclusion bodies and immunohistochemical staining for CMV in biopsy specimens obtained during esophagogastroduodenoscopy (EGD) indicate that such ulcers occur because of CMV infection. A 7-week-old female infant who experienced frequent vomiting and feeding intolerance was diagnosed with a massive CMV-associated ulcer in the distal esophagus. The ulcer improved after conservative treatment using proton-pump inhibitors; however, ganciclovir was not administered. In a follow-up EGD biopsy specimen, no CMV inclusion bodies were present, and immunohistochemical staining results for this virus were negative. The presence of CMV inclusion bodies indicates active viral replication. If persistent inclusion bodies or positive immunohistochemical staining for CMV is observed in follow-up biopsy specimens, ganciclovir may be used to treat CMV-associated esophageal ulcers.

KOMAC RFQ Vacuum System

  • Han, J.M.d;S.H.Jeong;Cho, Y.S.;Park, B.H.
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 1999년도 제17회 학술발표회 논문개요집
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    • pp.33-33
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    • 1999
  • The design of a vacuum pumping system for the KOMAC (Korea Multipurpose Accelerator Complex) RFQ(Radio-Frequency Quadrupole) linac is described. [Fig] Resulted from the lost proton beam, gas streaming from the LEBT (Low Energy Beam Transport) and out-gassing from the surfaces of the RFQ cavity and vacuum plumbing, the total gas load will be on the order of 7.2$\times$10-4 Torr-liters/sec, consisting mainly of hydrogen. The system designed to pump on a continual basis with redundancy to ensure that the minimal operating vacuum level of 1.0$\times$10-6 Torr is maintained even under abnormal conditions. Details of the design, performance analysis and the preliminary test results of the cryogenic pumps are presented.

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Reflux Following Esophagectomy for Esophageal Cancer

  • Cho, Jong Ho
    • Journal of Chest Surgery
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    • 제53권4호
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    • pp.217-221
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    • 2020
  • Gastroesophageal reflux is a common problem after gastroesophageal resection and reconstruction, despite the routine prescription of proton pump inhibitors (PPIs). Resection of the lower esophageal sphincter and excision of the vagus nerve are generally thought to be the main factors that interfere with gastric motor function. However, physiological studies of reflux symptoms after esophagectomy are still lacking. Gastroesophageal reflux occurs frequently after esophagectomy, but there is no known effective method to prevent it. Therefore, in order to manage gastroesophageal reflux after esophagectomy, strict lifestyle modifications and gastric acid suppression treatment such as PPIs are needed, and further clinical studies are required.

Helicobacter heilmannii 균 감염이 확인된 개에서의 위장염 발생 증례 (Gastritis in a Dog Infected with Helicobacter heilmannii)

  • 황철용;윤화영;한홍율
    • 한국임상수의학회지
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    • 제19권3호
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    • pp.375-378
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    • 2002
  • A 3-year-old intact female korean pungsan dog showing chronic intermittent vomiting and anorexia was admitted to The Veterinary Medical leaching Hospital of Seoul National University. The patient had been received antiemetics, antacids or proton pump inhibitor for these symptoms but had not been recovered yet. All results of physical examination, complete blood count, serum chemical analysis, fecal test and radiography were normal. Gastric endoscopic examination was also performed and gastritis with hemorrhage on near antrum region was detected. In PCR assay of bioptic gastric tissues for detecting Helicobacter species infection, Helicobacter heilmannii infection was confirmed. After receiving triple therapy with amoxicillin, metronidazole and omeprazole for 21 days, all symptoms were recovered and had not been occurred again. Helicobacter heilmannii also were not detected.

Helicobader pylori Infection: Epidemiology, Pathophysiology, and Therapy

  • Crespo, Antonio;Suh, Byungse
    • Archives of Pharmacal Research
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    • 제24권6호
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    • pp.485-498
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    • 2001
  • Helicobacter pylori is one of the most commonly encountered human pathogens. It has been shown to be closely associated with peptic ulcer disease (PUD), gastric adenocarcinoma, and the gastric mucosa-associated lymphoid tissue (MALT) that may lead to gastric lymphoma. The current diagnostic methods include histology, microbiological culture, classic serology unease activity detection, polymerase chain reaction (PCR) and stool antigen detection. Its treatment modality options are multiple; however, a triple regimen consisting of a proton pump inhibitor (PPI), and two antibiotics for 10 to 14 days is preferred. Drug resistance is a growing problem in this organism and new therapeutic options are currently limited .

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전기화학적 수소 압축기 기술 (A Review of Electrochemical Hydrogen Compressor Technology)

  • 김상경
    • 한국수소및신에너지학회논문집
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    • 제31권6호
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    • pp.578-586
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    • 2020
  • There is growing interest worldwide in a hydrogen economy that uses hydrogen as an energy medium instead of hydrocarbon-based fossil fuels as a way to combat climate change. Since hydrogen has a very low energy density per unit volume at room temperature, hydrogen must be compressed and stored in order to use as an energy carrier. There are mechanical and non-mechanical methods for compressing hydrogen. The mechanical method has disadvantages such as high energy consumption, durability problems of moving parts, hydrogen contamination by lubricants, and noise. Among the non-mechanical compression methods, electrochemical compression consumes less energy and can compress hydrogen with high purity. In this paper, research trends are reviewed, focusing on research papers on electrochemical hydrogen compression technology, and future research directions are suggested.

세포교정영양요법(OCNT)을 이용한 역류성식도염 환자 사례 연구 (A Case Study of Patients with Reflux Esophagitis Using Ortho-Cellular Nutrition Therapy (OCNT))

  • 천능수
    • 셀메드
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    • 제13권4호
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    • pp.15.1-15.6
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    • 2023
  • Objective: A case report on improving the symptoms of patients with reflux esophagitis by Ortho-Cellular Nutrition Therapy (OCNT). Methods: A 61-year-old Korean male who has been taking proton-pump inhibitors in the hospital for a long time due to the symptoms of reflux esophagitis. Results: The practice of Ortho-Cellular Nutrition Therapy (OCNT) restored the patient's mucosal cells of the esophageal sphincter, which led to the judgment that he was cured of reflux esophagitis. Conclusion: Ortho-Cellular Nutrition Therapy (OCNT) can be effective in relieving the symptoms of patients with reflux esophagitis.