Page last updated: 2024-11-01

omeprazole and Hyperplasia

omeprazole has been researched along with Hyperplasia in 55 studies

Omeprazole: A 4-methoxy-3,5-dimethylpyridyl, 5-methoxybenzimidazole derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits an H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.
omeprazole : A racemate comprising equimolar amounts of (R)- and (S)-omeprazole.
5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole : A member of the class of benzimidazoles that is 1H-benzimidazole which is substituted by a [4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl group at position 2 and a methoxy group at position 5.

Hyperplasia: An increase in the number of cells in a tissue or organ without tumor formation. It differs from HYPERTROPHY, which is an increase in bulk without an increase in the number of cells.

Research Excerpts

ExcerptRelevanceReference
" pylori infection on gastritis, enterochromaffin-like cell density and hyperplasia, mucosal atrophy and serum gastrin in patients with gastric hypersecretion (basal acid output gt; 15 mmol/h) with either hypergastrinemia (Zollinger-Ellison syndrome) or normal gastrin (non-Zollinger-Ellison syndrome) before and during long-term treatment with lansoprazole."7.71Helicobacter pylori effects on gastritis, gastrin and enterochromaffin-like cells in Zollinger-Ellison syndrome and non-Zollinger-Ellison syndrome acid hypersecretors treated long-term with lansoprazole. ( Haber, MM; Hirschowitz, BI, 2001)
" We report data from patients with refractory reflux esophagitis who were undergoing maintenance therapy with >/=20 mg omeprazole daily for a mean period of 6."7.70Long-term omeprazole treatment in resistant gastroesophageal reflux disease: efficacy, safety, and influence on gastric mucosa. ( Dent, J; Frame, MH; Havu, N; Klinkenberg-Knol, EC; Lloyd, D; Mitchell, B; Nelis, F; Prichard, P; Romàn, J; Snel, P; Walan, A, 2000)
" pylori represents an important factor for the progression of fundic gastritis and the development of argyrophil cell hyperplasia during long-term treatment with lansoprazole."7.69Gastric mucosa during treatment with lansoprazole: Helicobacter pylori is a risk factor for argyrophil cell hyperplasia. ( Arnold, R; Brunner, G; Eissele, R; Simon, B; Solcia, E, 1997)
"Long-term treatment with omeprazole induces hyperplasia of enterochromaffin-like cells, closely related to hypergastrinemia."7.68Effects of proglumide and enprostil on omeprazole-induced fundic endocrine cell hyperplasia in rats. ( Belaïche, J; Delwaide, J; Gast, P; Latour, P; Louis, E, 1993)
"In the present study, gastric pH was lowered by hydrochloric acid to investigate whether the cause of enterochromaffin-like (ECL) cell hyperplasia was due to the inhibition of acid secretion by omeprazole or due to the direct action of the drug."7.68Effects of hydrochloric acid on the development of enterochromaffin-like (ECL) cell hyperplasia in the rat stomach induced by omeprazole. ( Fujihira, S; Fujii, T; Matsuo, M; Oishi, Y; Tomoi, M, 1993)
" The present study shows that the combination of portacaval shunting and omeprazole-evoked, long-lasting hypergastrinemia results in enhanced enterochromaffinlike cell hyperplasia despite the fact that the hypergastrinemia was not significantly greater than in intact omeprazole-treated rats."7.68Enhanced hyperplasia of gastric enterochromaffinlike cells in response to omeprazole-evoked hypergastrinemia in rats with portacaval shunts. An immunocytochemical and chemical study. ( Axelson, J; Ekelund, M; Håkanson, R; Sundler, F, 1990)
"Development of focal gland atrophy of the oxyntic mucosa was found in two patients with the Zollinger-Ellison syndrome undergoing long-term treatment with omeprazole."7.68Focal oxyntic gland atrophy with endocrine cell hyperplasia in Zollinger-Ellison syndrome during omeprazole treatment. ( Annibale, B; Azzoni, C; Bertelé, A; Bordi, C; Caruana, P; Delle Fave, G; Franzé, A, 1992)
"Treatment with omeprazole also raised stomach weight and antral gastrin and gastrin cell density, reduced antral somatostatin cell density, but did not affect enterochromaffin cell density."5.27Time-course of development and reversal of gastric endocrine cell hyperplasia after inhibition of acid secretion. Studies with omeprazole and ranitidine in intact and antrectomized rats. ( Carlsson, E; Håkanson, R; Larsson, H; Mattsson, H; Nilsson, G; Seensalu, R; Sundler, F; Wallmark, B, 1988)
" Investigative studies showed evidence for marked and sustained hypergastrinemia increasing on chronic dosing which was capable of restoring gastric acid secretion and pH to near control values."5.27Gastric ECL-cell hyperplasia and carcinoids in rodents following chronic administration of H2-antagonists SK&F 93479 and oxmetidine and omeprazole. ( Betton, GR; Buckley, P; Dormer, CS; Pert, P; Price, CA; Wells, T, 1988)
"Two hundred and forty-three patients received rabeprazole (20 mg or 10 mg) or omeprazole (20 mg) once daily for up to 5 years, for gastro-oesophageal reflux disease and 51% completed the whole 5 year period."5.11Effects of 5 years of treatment with rabeprazole or omeprazole on the gastric mucosa. ( Fiocca, R; Jacobs, A; Miller, N; Morocutti, A; Rindi, G; Thjodleifsson, B, 2005)
"Gastric ECL-cell hyperplasia and carcinoids (ECLoma) develop after 1 year in rats treated with omeprazole or 2 months in Mastomys treated with loxtidine."3.78Ultrastructure of ECL cells in Mastomys after long-term treatment with H2 receptor antagonist loxtidine. ( Chen, D; Kidd, M; Modlin, IM; Vigen, RA; Zhao, CM, 2012)
" We administered high-dose omeprazole to patients with Barrett's esophagus for 2 years, and investigated changes in gastric ECL (Enterochromaffin-like) cells using endoscopic biopsy specimens to clarify the etiology of hyperplasia of the parietal cells."3.73Changes in gastric ECL cells and parietal cells after long-term administration of high-dose omeprazole to patients with Barrett's esophagus. ( Makuuchi, H; Nishi, T; Weinstein, WM, 2005)
" pylori infection on gastritis, enterochromaffin-like cell density and hyperplasia, mucosal atrophy and serum gastrin in patients with gastric hypersecretion (basal acid output gt; 15 mmol/h) with either hypergastrinemia (Zollinger-Ellison syndrome) or normal gastrin (non-Zollinger-Ellison syndrome) before and during long-term treatment with lansoprazole."3.71Helicobacter pylori effects on gastritis, gastrin and enterochromaffin-like cells in Zollinger-Ellison syndrome and non-Zollinger-Ellison syndrome acid hypersecretors treated long-term with lansoprazole. ( Haber, MM; Hirschowitz, BI, 2001)
" We report data from patients with refractory reflux esophagitis who were undergoing maintenance therapy with >/=20 mg omeprazole daily for a mean period of 6."3.70Long-term omeprazole treatment in resistant gastroesophageal reflux disease: efficacy, safety, and influence on gastric mucosa. ( Dent, J; Frame, MH; Havu, N; Klinkenberg-Knol, EC; Lloyd, D; Mitchell, B; Nelis, F; Prichard, P; Romàn, J; Snel, P; Walan, A, 2000)
"Omeprazole reduced the body weight gain while greatly increasing the weight of the proventriculus and the parathyroid glands."3.69Growth of the parathyroid glands in omeprazole-treated chickens. ( Gagnemo-Persson, R; Håkanson, R; Persson, P; Sundler, F, 1994)
" pylori represents an important factor for the progression of fundic gastritis and the development of argyrophil cell hyperplasia during long-term treatment with lansoprazole."3.69Gastric mucosa during treatment with lansoprazole: Helicobacter pylori is a risk factor for argyrophil cell hyperplasia. ( Arnold, R; Brunner, G; Eissele, R; Simon, B; Solcia, E, 1997)
"Long-term treatment with omeprazole induces hyperplasia of enterochromaffin-like cells, closely related to hypergastrinemia."3.68Effects of proglumide and enprostil on omeprazole-induced fundic endocrine cell hyperplasia in rats. ( Belaïche, J; Delwaide, J; Gast, P; Latour, P; Louis, E, 1993)
" Serum gastrin levels, non-antral gastric endocrine (argyrophil) cell growth, and the severity and type of concomitant gastritis were monitored in 66 unoperated and 8 antrectomized patients with poorly responsive peptic ulcer or reflux oesophagitis during up to 5 years' treatment with high-dose omeprazole, 40 mg daily."3.68Inter-relationship between serum gastrin levels, gastric mucosal histology and gastric endocrine cell growth. ( Creutzfeldt, W; Lamberts, R, 1992)
"Biopsy specimens from the oxyntic mucosa were obtained on 210 occasions from 76 patients with the Zollinger-Ellison syndrome (ZES) before and during omeprazole treatment."3.68Stereologic investigations of human gastric mucosa. II. Oxyntic mucosa from patients with Zollinger-Ellison syndrome. ( Gardner, JD; Helander, HF; Helander, KG; Jensen, RT; Maton, PN; Pisegna, JP; Rutgersson, K, 1992)
" The present study shows that the combination of portacaval shunting and omeprazole-evoked, long-lasting hypergastrinemia results in enhanced enterochromaffinlike cell hyperplasia despite the fact that the hypergastrinemia was not significantly greater than in intact omeprazole-treated rats."3.68Enhanced hyperplasia of gastric enterochromaffinlike cells in response to omeprazole-evoked hypergastrinemia in rats with portacaval shunts. An immunocytochemical and chemical study. ( Axelson, J; Ekelund, M; Håkanson, R; Sundler, F, 1990)
"The histamine-producing enterochromaffin-like (ECL) cells in the acid-producing portion of the rat stomach responded to long-standing hypergastrinemia (omeprazole treatment daily for 8-10 weeks) with hypertrophy (and hyperplasia) and with a reduced number of granules and vesicles per unit cytoplasm."3.68Effect of omeprazole-evoked hypergastrinemia on ultrastructure of enterochromaffin-like cells in the stomach of portacaval-shunted rats. ( Chen, D; Håkanson, R; Sundler, F, 1993)
"Relapses were re-treated with omeprazole 40 mg; upon rehealing, patients were put on maintenance omeprazole 20 mg daily for up to 4."2.68Histamine H2 receptor antagonist-refractory oesophagitis: the efficacy of long-term omeprazole maintenance treatment. ( Bardhan, KD; Bishop, A; Brooks, A; Cherian, P; D'Silva, J; Gillon, KR; Jones, RB; Manek, S; Morris, P; Parkin, S; Patterson, J; Polak, J; Thompson, M; Vaishnavi, A, 1997)
" No significant pathological findings were noted, and no adverse events were attributable to the study treatments."2.67Omeprazole v ranitidine for prevention of relapse in reflux oesophagitis. A controlled double blind trial of their efficacy and safety. ( Dent, J; Hetzel, DJ; Mackinnon, M; Narielvala, FM; Reed, W; Shearman, DJ; Solcia, E; Yeomans, ND, 1994)
"Although basal cell hyperplasia is a histologic hallmark of eosinophilic esophagitis (EoE), little is known about the capabilities of epithelial renewal and differentiation in the EoE inflammatory milieu."1.72CD73 ( Aaron, B; Dolinsky, L; Hamilton, KE; Hara, T; Karakasheva, TA; Karami, A; Kasagi, Y; Klein, J; Lynch, K; Maekawa, H; Muir, AB; Nakagawa, H; Nunes, K; Ruffner, MA; Sasaki, M; Shimonosono, M; Shimonosono, R; Spergel, JM; Wang, J; Wei, J; Whelan, KA; Wilkins, B, 2022)
"Omeprazole treatment for 4 weeks increased the oxyntic mucosal weight and thickness by 15-20%."1.31Effects of CCK2 receptor blockade on growth parameters in gastrointestinal tract and pancreas in rats. ( Björkqvist, M; Chen, D; de la Cour, CD; Gagnemo-Persson, C; Håkanson, R; Kitano, M; Norlén, P; Zhao, CM, 2001)
"Twenty-one families with MEN 2 (16 families with MEN 2A and 5 families with MEN 2B) were studied."1.31Very early detection of RET proto-oncogene mutation is crucial for preventive thyroidectomy in multiple endocrine neoplasia type 2 children: presence of C-cell malignant disease in asymptomatic carriers. ( Barontini, M; de, M; Domene, HM; Elsner, B; Garcia, R; Iorcansky, S; Perinetti, H; Pusiol, E; Ring, A; Roque, M; Sanso, GE, 2002)
"None of the rats developed esophageal cancer, but esophageal mucosal hyperplasia was more pronounced in rats receiving omeprazole."1.30Gastric acid blockade with omeprazole promotes gastric carcinogenesis induced by duodenogastric reflux. ( Adrian, TE; Hinder, RA; Perdikis, G; Profanter, C; Smyrk, T; Wetscher, GJ, 1999)
"Omeprazole is a proton pump inhibitor of increasingly wide use in the treatment of peptic ulcers."1.29Lack of evidence of omeprazole genotoxicity in Sprague-Dawley rats. ( Brambilla, G; Ghia, M; Martelli, A; Mereto, E, 1993)
"We investigated whether duodenogastric reflux (DGR) together with gastroesophageal reflux causes growth stimulation of the foregut mucosa and if additional gastric acid suppression enhances the effect of DGR."1.29Duodenogastric reflux causes growth stimulation of foregut mucosa potentiated by gastric acid blockade. ( Adrian, TE; Hinder, RA; Klingler, PJ; Kretchmar, D; Perdikis, G; Smyrk, T; Stinson, R; Wetscher, GJ, 1996)
"Chronic atrophic gastritis was found in 45 (10."1.28Gastric endocrine cells and gastritis in patients receiving long-term omeprazole treatment. ( Carlsson, R; Dalväg, A; Fiocca, R; Havu, N; Solcia, E, 1992)
"Neuroendocrine cell (carcinoid) tumours have been reported in the acid-secreting part of the stomach of rodents after long-term administration of a range of potent chemically diverse antisecretory agents."1.28Potential hazards of long-term acid suppression. ( Selway, SA, 1990)
" Investigative studies showed evidence for marked and sustained hypergastrinemia increasing on chronic dosing which was capable of restoring gastric acid secretion and pH to near control values."1.27Gastric ECL-cell hyperplasia and carcinoids in rodents following chronic administration of H2-antagonists SK&F 93479 and oxmetidine and omeprazole. ( Betton, GR; Buckley, P; Dormer, CS; Pert, P; Price, CA; Wells, T, 1988)
"Treatment with omeprazole also raised stomach weight and antral gastrin and gastrin cell density, reduced antral somatostatin cell density, but did not affect enterochromaffin cell density."1.27Time-course of development and reversal of gastric endocrine cell hyperplasia after inhibition of acid secretion. Studies with omeprazole and ranitidine in intact and antrectomized rats. ( Carlsson, E; Håkanson, R; Larsson, H; Mattsson, H; Nilsson, G; Seensalu, R; Sundler, F; Wallmark, B, 1988)

Research

Studies (55)

TimeframeStudies, this research(%)All Research%
pre-19906 (10.91)18.7374
1990's33 (60.00)18.2507
2000's13 (23.64)29.6817
2010's2 (3.64)24.3611
2020's1 (1.82)2.80

Authors

AuthorsStudies
Hara, T1
Kasagi, Y1
Wang, J1
Sasaki, M1
Aaron, B1
Karami, A1
Shimonosono, M1
Shimonosono, R1
Maekawa, H1
Dolinsky, L1
Wilkins, B1
Klein, J1
Wei, J1
Nunes, K1
Lynch, K1
Spergel, JM1
Hamilton, KE1
Ruffner, MA1
Karakasheva, TA1
Whelan, KA1
Nakagawa, H1
Muir, AB1
Tsyriuk, OI1
Vigen, RA1
Kidd, M1
Modlin, IM1
Chen, D4
Zhao, CM3
Brzozowski, T1
Konturek, PC1
Kwiecien, S1
Konturek, SJ1
Pajdo, R1
Drozdowicz, D1
Ptak, A1
Pawlik, M1
Stachura, J1
Pawlik, WW1
Hahn, EG1
Fukushima, Y1
Shindo, T1
Anai, M1
Saitoh, T1
Wang, Y1
Fujishiro, M1
Ohashi, Y1
Ogihara, T1
Inukai, K1
Ono, H1
Sakoda, H1
Kurihara, Y1
Honda, M1
Shojima, N1
Fukushima, H1
Haraikawa-Onishi, Y1
Katagiri, H1
Shimizu, Y1
Ichinose, M1
Ishikawa, T1
Omata, M1
Nagai, R1
Kurihara, H1
Asano, T1
Rindi, G2
Fiocca, R2
Morocutti, A1
Jacobs, A1
Miller, N1
Thjodleifsson, B1
Nishi, T1
Makuuchi, H1
Weinstein, WM1
Declich, P3
Omazzi, B1
Tavani, E3
Bellone, S3
Gozzini, C2
Bortoli, A2
Prada, A2
Handa, Y1
Ietomi, K1
Sakimura, K1
Miyoshi, K1
Mereto, E1
Ghia, M1
Martelli, A1
Brambilla, G1
Tanaka, J1
Fujimoto, K1
Iwakiri, R1
Koyama, T1
Sakata, H1
Ohyama, T1
Mizuguchi, M1
Tokunaga, O1
Gagnemo-Persson, R1
Håkanson, R11
Sundler, F9
Persson, P1
Delwaide, J1
Latour, P1
Gast, P1
Louis, E1
Belaïche, J1
Dent, J2
Yeomans, ND1
Mackinnon, M1
Reed, W1
Narielvala, FM1
Hetzel, DJ1
Solcia, E4
Shearman, DJ1
Fujii, T1
Oishi, Y1
Fujihira, S1
Matsuo, M1
Tomoi, M1
Driman, DK1
Wright, C1
Tougas, G1
Riddell, RH1
Wetscher, GJ2
Hinder, RA2
Kretchmar, D1
Stinson, R1
Perdikis, G2
Smyrk, T2
Klingler, PJ1
Adrian, TE2
Waldum, HL2
Arnestad, JS1
Brenna, E2
Eide, I1
Syversen, U1
Sandvik, AK2
Eissele, R2
Brunner, G1
Simon, B1
Arnold, R2
Suzuki, S2
Ohkusa, T2
Shimoi, K2
Horiuchi, T2
Fujiki, K2
Takashimizu, I2
Bardhan, KD1
Cherian, P1
Jones, RB1
Vaishnavi, A1
Manek, S1
Bishop, A1
Polak, J1
Brooks, A1
Morris, P1
Thompson, M1
D'Silva, J1
Parkin, S1
Patterson, J1
Gillon, KR1
Kimura, K1
Lindström, E1
Yamada, H1
Diebold, MD1
Richardson, S1
Duchateau, A1
Bigard, MA1
Colin, R1
Cortot, A1
Fauchère, JL1
Zeitoun, P1
Sakurazawa, T1
Ariake, K1
Ishii, K1
Kumagai, J1
Tanizawa, T1
Profanter, C1
Ambrosiani, L2
Robinson, M1
Klinkenberg-Knol, EC1
Nelis, F1
Snel, P1
Mitchell, B1
Prichard, P1
Lloyd, D1
Havu, N4
Frame, MH1
Romàn, J1
Walan, A1
Bakke, I1
Qvigstad, G1
Nakajima, A1
Matsuhashi, N1
Yazaki, Y1
Oka, T1
Sugano, K1
Hirschowitz, BI1
Haber, MM1
Stolte, M1
Vieth, M1
Schmitz, JM1
Alexandridis, T1
Seifert, E1
Kume, K1
Hirakoba, M1
Murata, I1
Yoshikawa, I1
Otsuki, M1
Björkqvist, M1
Norlén, P1
Kitano, M1
de la Cour, CD1
Gagnemo-Persson, C1
Sanso, GE1
Domene, HM1
Garcia, R1
Pusiol, E1
de, M1
Roque, M1
Ring, A1
Perinetti, H1
Elsner, B1
Iorcansky, S1
Barontini, M1
Dalväg, A1
Carlsson, R1
Creutzfeldt, W1
Lamberts, R1
Caruana, P1
Azzoni, C1
Bertelé, A1
Annibale, B1
Franzé, A1
Delle Fave, G1
Bordi, C1
Helander, HF1
Rutgersson, K1
Helander, KG1
Pisegna, JP1
Gardner, JD1
Jensen, RT1
Maton, PN1
Andersson, K1
Mattsson, H5
Ryberg, B3
Axelson, J3
Tielemans, Y1
Johansson, AG1
Willems, G1
Tielemans, YK1
Willems, GE1
Selway, SA1
Rosskopf, B1
Koop, H1
Adler, G1
Carlsson, E4
Ekman, L1
Ekelund, M1
Elm, G1
Bishop, AE1
Bloom, SR1
Larsson, H3
Polak, JM1
Betton, GR1
Dormer, CS1
Wells, T1
Pert, P1
Price, CA1
Buckley, P1
Nilsson, G1
Seensalu, R1
Wallmark, B1
Bardram, L1
Thomsen, P1
Stadil, F1

Clinical Trials (2)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
Study of the Effect of PROGRESSive Withdrawal Esomeprazole of on Acid-related Symptoms, PROGRESS Study A Randomized, Placebo-controlled, Double Blinded Study[NCT02476097]Phase 458 participants (Anticipated)Interventional2015-06-30Active, not recruiting
Proton Pump Inhibitors in the Prevention of Iron Reaccumulation in Patient With Hereditary Hemochromatosis[NCT01524757]48 participants (Anticipated)Interventional2012-03-31Not yet recruiting
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Reviews

3 reviews available for omeprazole and Hyperplasia

ArticleYear
Review article: current perspectives on hypergastrinaemia and enterochromaffin-like-cell hyperplasia.
    Alimentary pharmacology & therapeutics, 1999, Volume: 13 Suppl 5

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Animals; Anti-Ulcer Agents; Benzimidazoles; Enterochromaffi

1999
[Effect of endogenous and exogenous gastrin on enterochromaffin-like cell proliferation].
    Gastroenterologie clinique et biologique, 1991, Volume: 15, Issue:5 ( Pt 2)

    Topics: Animals; Enterochromaffin Cells; Gastric Mucosa; Gastrins; Hyperplasia; Mice; Omeprazole; Rats; Stom

1991
Gastrin and gastric enterochromaffin-like cell carcinoids in the rat.
    Digestion, 1990, Volume: 47 Suppl 1

    Topics: Animals; Enterochromaffin Cells; Gastric Mucosa; Gastrins; Hyperplasia; Omeprazole; Ranitidine; Rats

1990

Trials

8 trials available for omeprazole and Hyperplasia

ArticleYear
Effects of 5 years of treatment with rabeprazole or omeprazole on the gastric mucosa.
    European journal of gastroenterology & hepatology, 2005, Volume: 17, Issue:5

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Adult; Aged; Anti-Ulcer Agents; Benzimidazoles; Biopsy; Dis

2005
Omeprazole v ranitidine for prevention of relapse in reflux oesophagitis. A controlled double blind trial of their efficacy and safety.
    Gut, 1994, Volume: 35, Issue:5

    Topics: Adolescent; Adult; Aged; Aged, 80 and over; Double-Blind Method; Esophagitis, Peptic; Esophagoscopy;

1994
Marked increase in gastric acid secretory capacity after omeprazole treatment.
    Gut, 1996, Volume: 39, Issue:5

    Topics: Adult; Aged; Anti-Ulcer Agents; Chromogranin A; Chromogranins; Enterochromaffin Cells; Esophagitis,

1996
Histamine H2 receptor antagonist-refractory oesophagitis: the efficacy of long-term omeprazole maintenance treatment.
    Italian journal of gastroenterology and hepatology, 1997, Volume: 29, Issue:6

    Topics: Adult; Aged; Biopsy; Cimetidine; Drug Administration Schedule; Drug Resistance; Enzyme Inhibitors; E

1997
Factors influencing corpus argyrophil cell density and hyperplasia in reflux esophagitis patients treated with antisecretory drugs and controls.
    Digestive diseases and sciences, 1998, Volume: 43, Issue:8

    Topics: Adult; Aged; Aged, 80 and over; Anti-Ulcer Agents; Cell Count; Cross-Sectional Studies; Enterochroma

1998
Disappearance of hyperplastic polyps in the stomach after eradication of Helicobacter pylori. A randomized, clinical trial.
    Annals of internal medicine, 1998, Nov-01, Volume: 129, Issue:9

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Abietanes; Adult; Aged; Amoxicillin; Anti-Bacterial Agents;

1998
Effects of long-term treatment with proton pump inhibitors in gastro-oesophageal reflux disease on the histological findings in the lower oesophagus.
    Scandinavian journal of gastroenterology, 2000, Volume: 35, Issue:11

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Anti-Ulcer Agents; Barrett Esophagus; Double-Blind Method;

2000
Qualitative studies of gastric endocrine cells in patients treated long-term with omeprazole.
    Scandinavian journal of gastroenterology. Supplement, 1989, Volume: 166

    Topics: Biopsy; Carcinoid Tumor; Cell Division; Cell Transformation, Neoplastic; Enterochromaffin Cells; Eso

1989

Other Studies

44 other studies available for omeprazole and Hyperplasia

ArticleYear
CD73
    Cellular and molecular gastroenterology and hepatology, 2022, Volume: 13, Issue:5

    Topics: 5'-Nucleotidase; Animals; Cytokines; Eosinophilic Esophagitis; Homeostasis; Humans; Hyperplasia; Int

2022
[Correction of negative influence of long-term hypergastrinemia on gastric acid secretion].
    Fiziolohichnyi zhurnal (Kiev, Ukraine : 1994), 2011, Volume: 57, Issue:1

    Topics: Animals; Anti-Ulcer Agents; Drug Therapy, Combination; Gastric Acid; Gastric Mucosa; Gastrins; Hyper

2011
Ultrastructure of ECL cells in Mastomys after long-term treatment with H2 receptor antagonist loxtidine.
    Medical molecular morphology, 2012, Volume: 45, Issue:2

    Topics: Animals; Anti-Ulcer Agents; Autophagy; Carcinoid Tumor; Enterochromaffin-like Cells; Female; Histami

2012
Triple eradication therapy counteracts functional impairment associated with Helicobacter pylori infection in Mongolian gerbils.
    Journal of physiology and pharmacology : an official journal of the Polish Physiological Society, 2003, Volume: 54, Issue:1

    Topics: Amoxicillin; Animals; Anti-Ulcer Agents; Colony Count, Microbial; Drug Therapy, Combination; Gastric

2003
Structural and functional characterization of gastric mucosa and central nervous system in histamine H2 receptor-null mice.
    European journal of pharmacology, 2003, May-02, Volume: 468, Issue:1

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Animals; Blotting, Northern; Electroshock; Gastric Acid; Ga

2003
Changes in gastric ECL cells and parietal cells after long-term administration of high-dose omeprazole to patients with Barrett's esophagus.
    The Tokai journal of experimental and clinical medicine, 2005, Volume: 30, Issue:2

    Topics: Anti-Ulcer Agents; Barrett Esophagus; Cell Count; Dose-Response Relationship, Drug; Enterochromaffin

2005
Fundic gland polyps and PPI: the Mozart effect of gastrointestinal pathology?
    Polish journal of pathology : official journal of the Polish Society of Pathologists, 2006, Volume: 57, Issue:4

    Topics: Enzyme Inhibitors; Gastric Fundus; Helicobacter Infections; Helicobacter pylori; Humans; Hyperplasia

2006
[A case of multiple gastric hyperplastic polyps: onset during omeprazole therapy in scleroderma patient].
    Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology, 1994, Volume: 91, Issue:11

    Topics: Aged; Esophagitis, Peptic; Female; Humans; Hyperplasia; Omeprazole; Polyps; Scleroderma, Systemic; S

1994
Lack of evidence of omeprazole genotoxicity in Sprague-Dawley rats.
    Mutagenesis, 1993, Volume: 8, Issue:5

    Topics: Animals; Cell Nucleus; Chi-Square Distribution; DNA Damage; Enzyme Induction; Female; gamma-Glutamyl

1993
Hyperplastic polyps following treatment of acute gastric ulcers.
    Internal medicine (Tokyo, Japan), 1994, Volume: 33, Issue:6

    Topics: Esophageal and Gastric Varices; Famotidine; Female; Humans; Hyperplasia; Middle Aged; Omeprazole; Po

1994
Growth of the parathyroid glands in omeprazole-treated chickens.
    Scandinavian journal of gastroenterology, 1994, Volume: 29, Issue:6

    Topics: Animals; Bone Density; Chickens; DNA; Gastrins; Hyperplasia; Hypertrophy; Omeprazole; Organ Size; Pa

1994
Effects of proglumide and enprostil on omeprazole-induced fundic endocrine cell hyperplasia in rats.
    Gastroenterologie clinique et biologique, 1993, Volume: 17, Issue:11

    Topics: Animals; Cell Count; Depression, Chemical; Drug Combinations; Enprostil; Enterochromaffin Cells; Fem

1993
Effects of hydrochloric acid on the development of enterochromaffin-like (ECL) cell hyperplasia in the rat stomach induced by omeprazole.
    The Journal of toxicological sciences, 1993, Volume: 18, Issue:4

    Topics: Animals; Enterochromaffin Cells; Female; Gastric Acid; Gastric Acidity Determination; Hydrochloric A

1993
Effect of omeprazole-evoked hypergastrinemia on ultrastructure of enterochromaffin-like cells in the stomach of portacaval-shunted rats.
    Cell and tissue research, 1993, Volume: 272, Issue:1

    Topics: Animals; Enterochromaffin Cells; Gastrins; Hyperplasia; Hypertrophy; Male; Microscopy, Electron; Ome

1993
Omeprazole produces parietal cell hypertrophy and hyperplasia in humans.
    Digestive diseases and sciences, 1996, Volume: 41, Issue:10

    Topics: Adolescent; Adult; Aged; Aged, 80 and over; Anti-Ulcer Agents; Cell Count; Cell Size; Humans; Hyperp

1996
Duodenogastric reflux causes growth stimulation of foregut mucosa potentiated by gastric acid blockade.
    Digestive diseases and sciences, 1996, Volume: 41, Issue:11

    Topics: Animals; DNA; Duodenogastric Reflux; Esophagus; Gastric Acid; Gastric Acidity Determination; Gastric

1996
Gastric mucosa during treatment with lansoprazole: Helicobacter pylori is a risk factor for argyrophil cell hyperplasia.
    Gastroenterology, 1997, Volume: 112, Issue:3

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Adult; Aged; Female; Gastric Mucosa; Gastrins; Gastritis; H

1997
Disappearance of multiple hyperplastic polyps after the eradication of Helicobacter pylori.
    Gastrointestinal endoscopy, 1997, Volume: 46, Issue:6

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Amoxicillin; Anti-Bacterial Agents; Drug Therapy, Combinati

1997
Functional impairment of the individual rat stomach ECL cell in response to sustained hypergastrinemia.
    Regulatory peptides, 1997, Oct-31, Volume: 72, Issue:2-3

    Topics: Animals; Base Sequence; Cell Size; Chromogranin A; Chromogranins; Enterochromaffin-like Cells; Enzym

1997
Gastric acid blockade with omeprazole promotes gastric carcinogenesis induced by duodenogastric reflux.
    Digestive diseases and sciences, 1999, Volume: 44, Issue:6

    Topics: Adenocarcinoma; Animals; Anti-Ulcer Agents; Disease Models, Animal; Duodenogastric Reflux; Esophagea

1999
Fundic metaplasia with parietal cell hyperplasia of the antrum: a lesion possibly associated with long term use of omeprazole.
    The American journal of gastroenterology, 1999, Volume: 94, Issue:8

    Topics: Anti-Ulcer Agents; Biopsy; Gastric Fundus; Humans; Hyperplasia; Long-Term Care; Male; Metaplasia; Mi

1999
Corpus-active gastritis with focal atrophy and parietal cell hyperplasia related to long-term use of omeprazole.
    Virchows Archiv : an international journal of pathology, 1999, Volume: 435, Issue:2

    Topics: Atrophy; Gastritis; Humans; Hyperplasia; Omeprazole; Parietal Cells, Gastric; Stomach; Time Factors

1999
Long-term omeprazole treatment in resistant gastroesophageal reflux disease: efficacy, safety, and influence on gastric mucosa.
    Gastroenterology, 2000, Volume: 118, Issue:4

    Topics: Adolescent; Adult; Aged; Aged, 80 and over; Anti-Ulcer Agents; Barrett Esophagus; Child; Drug Resist

2000
Gastrin has a specific proliferative effect on the rat enterochromaffin-like cell, but not on the parietal cell: a study by elutriation centrifugation.
    Acta physiologica Scandinavica, 2000, Volume: 169, Issue:1

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Animals; Benzimidazoles; Cell Division; Cell Fractionation;

2000
Details of hyperplastic polyps of the stomach shrinking after anti-Helicobacter pylori therapy.
    Journal of gastroenterology, 2000, Volume: 35, Issue:5

    Topics: Anti-Bacterial Agents; Anti-Ulcer Agents; Biomarkers, Tumor; Cell Division; Cyclooxygenase 2; Drug T

2000
Helicobacter pylori effects on gastritis, gastrin and enterochromaffin-like cells in Zollinger-Ellison syndrome and non-Zollinger-Ellison syndrome acid hypersecretors treated long-term with lansoprazole.
    Alimentary pharmacology & therapeutics, 2001, Volume: 15, Issue:1

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Adult; Enterochromaffin-like Cells; Enzyme Inhibitors; Fema

2001
Disappearance of both MALT lymphoma and hyperplastic polyps in the stomach after eradication of Helicobacter pylori.
    The American journal of gastroenterology, 2001, Volume: 96, Issue:9

    Topics: Amoxicillin; Anti-Bacterial Agents; Anti-Ulcer Agents; Clarithromycin; Female; Helicobacter Infectio

2001
Effects of CCK2 receptor blockade on growth parameters in gastrointestinal tract and pancreas in rats.
    Pharmacology & toxicology, 2001, Volume: 89, Issue:4

    Topics: Animals; Benzodiazepines; Benzodiazepinones; Digestive System; Drug Interactions; Gastrins; Hormone

2001
Very early detection of RET proto-oncogene mutation is crucial for preventive thyroidectomy in multiple endocrine neoplasia type 2 children: presence of C-cell malignant disease in asymptomatic carriers.
    Cancer, 2002, Jan-15, Volume: 94, Issue:2

    Topics: Adolescent; Adult; Aged; Aged, 80 and over; Calcitonin; Carcinoma, Medullary; Catecholamines; Child;

2002
Gastric endocrine cells and gastritis in patients receiving long-term omeprazole treatment.
    Digestion, 1992, Volume: 51 Suppl 1

    Topics: Adult; Biopsy; Esophagitis, Peptic; Gastric Mucosa; Gastritis, Atrophic; Humans; Hyperplasia; Incide

1992
Inter-relationship between serum gastrin levels, gastric mucosal histology and gastric endocrine cell growth.
    Digestion, 1992, Volume: 51 Suppl 1

    Topics: Biopsy; Esophagitis, Peptic; Gastric Mucosa; Gastrins; Gastritis, Atrophic; Humans; Hyperplasia; Lon

1992
Focal oxyntic gland atrophy with endocrine cell hyperplasia in Zollinger-Ellison syndrome during omeprazole treatment.
    Histopathology, 1992, Volume: 21, Issue:4

    Topics: Adult; Atrophy; Endocrine Glands; Female; Humans; Hyperplasia; Male; Middle Aged; Omeprazole; Pariet

1992
Stereologic investigations of human gastric mucosa. II. Oxyntic mucosa from patients with Zollinger-Ellison syndrome.
    Scandinavian journal of gastroenterology, 1992, Volume: 27, Issue:10

    Topics: Adolescent; Adult; Age Factors; Aged; Biopsy; Cell Count; Evaluation Studies as Topic; Female; Gastr

1992
Hyperplasia of histamine-depleted enterochromaffinlike cells in rat stomach using omeprazole and alpha-fluoromethylhistidine.
    Gastroenterology, 1992, Volume: 103, Issue:3

    Topics: Animals; Enterochromaffin Cells; Female; Gastric Mucosa; Gastrins; Histamine; Histidine Decarboxylas

1992
Antrectomy does not accelerate reversal of omeprazole-induced trophic effects in the rat stomach.
    Scandinavian journal of gastroenterology, 1992, Volume: 27, Issue:3

    Topics: Animals; Atrophy; Cell Count; Cell Survival; Gastric Mucosa; Gastrins; Hyperplasia; Male; Omeprazole

1992
Unilateral vagal denervation suppresses omeprazole-induced trophic effects on the denervated side of the rat stomach.
    Scandinavian journal of gastroenterology, 1992, Volume: 27, Issue:1

    Topics: Animals; Denervation; Enterochromaffin Cells; Gastric Mucosa; Gastrins; Hyperplasia; Male; Omeprazol

1992
Potential hazards of long-term acid suppression.
    Scandinavian journal of gastroenterology. Supplement, 1990, Volume: 178

    Topics: Animals; Carcinoid Tumor; Female; Gastric Acid; Gastric Mucosa; Gastrins; Histamine H2 Antagonists;

1990
Proliferation of endocrine cells in the rat stomach caused by drug-induced achlorhydria.
    Gastroenterology, 1991, Volume: 101, Issue:1

    Topics: 2-Pyridinylmethylsulfinylbenzimidazoles; Achlorhydria; Animals; Cell Count; Enterochromaffin Cells;

1991
Enhanced hyperplasia of gastric enterochromaffinlike cells in response to omeprazole-evoked hypergastrinemia in rats with portacaval shunts. An immunocytochemical and chemical study.
    Gastroenterology, 1990, Volume: 99, Issue:3

    Topics: Animals; Chromaffin System; Enterochromaffin Cells; Gastric Mucosa; Gastrins; Histamine; Histidine D

1990
Omeprazole and ranitidine, antisecretagogues with different modes of action, are equally effective in causing hyperplasia of enterochromaffin-like cells in rat stomach.
    Regulatory peptides, 1989, Volume: 25, Issue:2

    Topics: Animals; Chromaffin System; Enterochromaffin Cells; Female; Gastric Acid; Gastric Mucosa; Gastrins;

1989
Gastric ECL-cell hyperplasia and carcinoids in rodents following chronic administration of H2-antagonists SK&F 93479 and oxmetidine and omeprazole.
    Toxicologic pathology, 1988, Volume: 16, Issue:2

    Topics: Animals; Carcinogens; Carcinoid Tumor; Enterochromaffin Cells; Female; Gastric Acid; Gastric Mucosa;

1988
Time-course of development and reversal of gastric endocrine cell hyperplasia after inhibition of acid secretion. Studies with omeprazole and ranitidine in intact and antrectomized rats.
    Gastroenterology, 1988, Volume: 95, Issue:6

    Topics: Animals; Cell Count; Chromaffin System; Enterochromaffin Cells; Female; Gastric Acid; Gastric Mucosa

1988
Omeprazole: its influence on gastric acid secretion, gastrin and ECL cells.
    Toxicologic pathology, 1988, Volume: 16, Issue:2

    Topics: Animals; Chromaffin System; Dogs; Enterochromaffin Cells; Gastric Acid; Gastric Mucosa; Gastrins; Hy

1988
Gastric endocrine cells in omeprazole-treated and untreated patients with the Zollinger-Ellison syndrome.
    Digestion, 1986, Volume: 35 Suppl 1

    Topics: Female; Gastric Mucosa; Gastrins; Humans; Hyperplasia; Male; Omeprazole; Time Factors; Zollinger-Ell

1986