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Items: 1 to 50 of 91

1.

Maintaining and shipping Helicobacter pylori on agar stabs.

Reddy R, Penland RL, Osato MS, Graham DY.

Helicobacter. 2011 Jun;16(3):252-3. doi: 10.1111/j.1523-5378.2011.00836.x. No abstract available.

PMID:
21585613
2.

In vitro effects of medium tonicity, nutrient concentration, and free chlorine content on Acanthamoeba.

Bergmanson JP, Wang E, Gire AI, Osato MS.

Cont Lens Anterior Eye. 2011 Aug;34(4):164-8. doi: 10.1016/j.clae.2011.02.003. Epub 2011 Apr 22.

PMID:
21514210
3.

Addition of gentamicin to endoscopic retrograde cholangiopancreatography (ERCP) contrast medium towards reducing the frequency of septic complications of ERCP.

Ramirez FC, Osato MS, Graham DY, Woods KL.

J Dig Dis. 2010 Aug;11(4):237-43. doi: 10.1111/j.1751-2980.2010.00444.x.

PMID:
20649737
4.

Challenge model for Helicobacter pylori infection in human volunteers.

Graham DY, Opekun AR, Osato MS, El-Zimaity HM, Lee CK, Yamaoka Y, Qureshi WA, Cadoz M, Monath TP.

Gut. 2004 Sep;53(9):1235-43.

5.

Twice daily (mid-day and evening) quadruple therapy for H. pylori infection in the United States.

Graham DY, Belson G, Abudayyeh S, Osato MS, Dore MP, El-Zimaity HM.

Dig Liver Dis. 2004 Jun;36(6):384-7.

PMID:
15248377
6.

Etest for metronidazole susceptibility in H. pylori: use of the wrong standard may have led to the wrong conclusion.

Osato MS, Graham DY.

Am J Gastroenterol. 2004 Apr;99(4):769. No abstract available.

PMID:
15089919
7.

Eradication of Helicobacter pylori by 7-day triple-therapy regimens combining pantoprazole with clarithromycin, metronidazole, or amoxicillin in patients with peptic ulcer disease: results of two double-blind, randomized studies.

Bochenek WJ, Peters S, Fraga PD, Wang W, Mack ME, Osato MS, El-Zimaity HM, Davis KD, Graham DY; Helicobacter pylori Pantoprazole Eradication (HELPPE) Study Group.

Helicobacter. 2003 Dec;8(6):626-42. Erratum in: Helicobacter. 2004 Apr;9(2):183.

PMID:
14632678
8.

Enterococcus gastritis.

El-Zimaity HM, Ramchatesingh J, Clarridge JE, Abudayyeh S, Osato MS, Graham DY.

Hum Pathol. 2003 Sep;34(9):944-5.

PMID:
14562292
9.

Studies regarding the mechanism of false negative urea breath tests with proton pump inhibitors.

Graham DY, Opekun AR, Hammoud F, Yamaoka Y, Reddy R, Osato MS, El-Zimaity HM.

Am J Gastroenterol. 2003 May;98(5):1005-9.

PMID:
12809820
10.

Meta-analysis: proton pump inhibitor or H2-receptor antagonist for Helicobacter pylori eradication.

Graham DY, Hammoud F, El-Zimaity HM, Kim JG, Osato MS, El-Serag HB.

Aliment Pharmacol Ther. 2003 May 15;17(10):1229-36.

11.

Early events in proton pump inhibitor-associated exacerbation of corpus gastritis.

Graham DY, Opekun AR, Yamaoka Y, Osato MS, el-Zimaity HM.

Aliment Pharmacol Ther. 2003 Jan;17(2):193-200.

12.

New serological assay for detection of putative Helicobacter pylori virulence factors.

Park CY, Cho YK, Kodama T, El-Zimaity HM, Osato MS, Graham DY, Yamaoka Y.

J Clin Microbiol. 2002 Dec;40(12):4753-6.

13.

Folk yoghurt kills Helicobacter pylori.

Oh Y, Osato MS, Han X, Bennett G, Hong WK.

J Appl Microbiol. 2002;93(6):1083-8.

14.

Helicobacter pylori infection in Kazakhstan: effect of water source and household hygiene.

Nurgalieva ZZ, Malaty HM, Graham DY, Almuchambetova R, Machmudova A, Kapsultanova D, Osato MS, Hollinger FB, Zhangabylov A.

Am J Trop Med Hyg. 2002 Aug;67(2):201-6.

PMID:
12389948
15.

Clinical presentation in relation to diversity within the Helicobacter pylori cag pathogenicity island.

Hsu PI, Hwang IR, Cittelly D, Lai KH, El-Zimaity HM, Gutierrez O, Kim JG, Osato MS, Graham DY, Yamaoka Y.

Am J Gastroenterol. 2002 Sep;97(9):2231-8.

PMID:
12358238
16.

Importance of Helicobacter pylori oipA in clinical presentation, gastric inflammation, and mucosal interleukin 8 production.

Yamaoka Y, Kikuchi S, el-Zimaity HM, Gutierrez O, Osato MS, Graham DY.

Gastroenterology. 2002 Aug;123(2):414-24.

PMID:
12145793
17.

Helicobacter pylori in North and South America before Columbus.

Yamaoka Y, Orito E, Mizokami M, Gutierrez O, Saitou N, Kodama T, Osato MS, Kim JG, Ramirez FC, Mahachai V, Graham DY.

FEBS Lett. 2002 Apr 24;517(1-3):180-4.

18.

Discrimination between cases of duodenal ulcer and gastritis on the basis of putative virulence factors of Helicobacter pylori.

Yamaoka Y, Souchek J, Odenbreit S, Haas R, Arnqvist A, Borén T, Kodama T, Osato MS, Gutierrez O, Kim JG, Graham DY.

J Clin Microbiol. 2002 Jun;40(6):2244-6.

19.

Citric acid-enhanced Helicobacter pylori urease activity in vivo is unrelated to gastric emptying.

Shiotani A, Saeed A, Yamaoka Y, Osato MS, Klein PD, Graham DY.

Aliment Pharmacol Ther. 2001 Nov;15(11):1763-7.

20.

DNA sequence analysis of rdxA and frxA from 12 pairs of metronidazole-sensitive and -resistant clinical Helicobacter pylori isolates.

Kwon DH, Hulten K, Kato M, Kim JJ, Lee M, El-Zaatari FA, Osato MS, Graham DY.

Antimicrob Agents Chemother. 2001 Sep;45(9):2609-15.

21.

Etiology of Crohn's disease: the role of Mycobacterium avium paratuberculosis.

El-Zaatari FA, Osato MS, Graham DY.

Trends Mol Med. 2001 Jun;7(6):247-52.

PMID:
11378513
22.

Isolation of Helicobacter pylori from sheep-implications for transmission to humans.

Dore MP, Sepulveda AR, El-Zimaity H, Yamaoka Y, Osato MS, Mototsugu K, Nieddu AM, Realdi G, Graham DY.

Am J Gastroenterol. 2001 May;96(5):1396-401.

PMID:
11374673
23.

Pattern of primary resistance of Helicobacter pylori to metronidazole or clarithromycin in the United States.

Osato MS, Reddy R, Reddy SG, Penland RL, Malaty HM, Graham DY.

Arch Intern Med. 2001 May 14;161(9):1217-20.

PMID:
11343444
24.

Nitrofurantoin quadruple therapy for Helicobacter pylori infection: effect of metronidazole resistance.

Graham DY, Saeed MA, Hoffman J, El-Zimaity HM, Kwon DH, Osato MS.

Aliment Pharmacol Ther. 2001 Apr;15(4):513-8.

25.

Comparative efficacy of new investigational agents against Helicobacter pylori.

Osato MS, Reddy SG, Piergies AA, Bochenek WJ, Testa RT, Graham DY.

Aliment Pharmacol Ther. 2001 Apr;15(4):487-92.

26.

Analysis of metronidazole, clarithromycin and tetracycline resistance of Helicobacter pylori isolates from Korea.

Kim JJ, Reddy R, Lee M, Kim JG, El-Zaatari FA, Osato MS, Graham DY, Kwon DH.

J Antimicrob Chemother. 2001 Apr;47(4):459-61.

PMID:
11266421
27.

Comparison of the Etest and the NCCLS-approved agar dilution method to detect metronidazole and clarithromycin resistant Helicobacter pylori.

Osato MS, Reddy R, Reddy SG, Penland RL, Graham DY.

Int J Antimicrob Agents. 2001 Jan;17(1):39-44.

PMID:
11137647
28.

Furazolidone- and nitrofurantoin-resistant Helicobacter pylori: prevalence and role of genes involved in metronidazole resistance.

Kwon DH, Lee M, Kim JJ, Kim JG, El-Zaatari FA, Osato MS, Graham DY.

Antimicrob Agents Chemother. 2001 Jan;45(1):306-8.

29.

Use of a dry-plasma collection device to overcome problems with storage and transportation of blood samples for epidemiology studies in developing countries.

Nurgalieva ZZ, Almuchambetova R, Machmudova A, Kapsultanova D, Osato MS, Peacock J, Zoltek RP, Marchildon PA, Graham DY, Zhangabylov A.

Clin Diagn Lab Immunol. 2000 Nov;7(6):882-4.

30.

Frameshift mutations in rdxA and metronidazole resistance in North American Helicobacter pylori isolates.

Kwon DH, Peña JA, Osato MS, Fox JG, Graham DY, Versalovic J.

J Antimicrob Chemother. 2000 Nov;46(5):793-6.

PMID:
11062200
31.

Helicobacter pylori infection in children of Texas.

Opekun AR, Gilger MA, Denyes SM, Nirken MH, Philip SP, Osato MS, Malaty HM, Hicks J, Graham DY.

J Pediatr Gastroenterol Nutr. 2000 Oct;31(4):405-10.

PMID:
11045838
32.

Isolation and characterization of tetracycline-resistant clinical isolates of Helicobacter pylori.

Kwon DH, Kim JJ, Lee M, Yamaoka Y, Kato M, Osato MS, El-Zaatari FA, Graham DY.

Antimicrob Agents Chemother. 2000 Nov;44(11):3203-5.

33.
34.

Quantitative and bioluminescent assay to measure efficacy of conventional and DNA vaccinations against Helicobacter pylori.

Ozpolat B, Rao XM, Lachman LB, Osato MS, Graham DY.

Comb Chem High Throughput Screen. 2000 Aug;3(4):289-302.

PMID:
10974142
35.

Characterization of a culture method to recover Helicobacter pylori from the feces of infected patients.

Dore MP, Osato MS, Malaty HM, Graham DY.

Helicobacter. 2000 Sep;5(3):165-8.

PMID:
10971682
36.
38.

Regional differences in metronidazole resistance and increasing clarithromycin resistance among Helicobacter pylori isolates from Japan.

Kato M, Yamaoka Y, Kim JJ, Reddy R, Asaka M, Kashima K, Osato MS, El-Zaatari FA, Graham DY, Kwon DH.

Antimicrob Agents Chemother. 2000 Aug;44(8):2214-6.

39.
40.

Quantitative RT-PCR analysis of multiple genes encoding putative metronidazole nitroreductases from Helicobacter pylori.

Kwon DH, Osato MS, Graham DY, El-Zaatari FA.

Int J Antimicrob Agents. 2000 Jun;15(1):31-6.

PMID:
10856674
41.

Metronidazole containing quadruple therapy for infection with metronidazole resistant Helicobacter pylori: a prospective study.

Graham DY, Osato MS, Hoffman J, Opekun AR, Anderson SY, Kwon DH, El-Zimaity HM.

Aliment Pharmacol Ther. 2000 Jun;14(6):745-50.

42.

Conservation of Helicobacter pylori genotypes in different ethnic groups in Houston, Texas.

Yamaoka Y, Malaty HM, Osato MS, Graham DY.

J Infect Dis. 2000 Jun;181(6):2083-6. Epub 2000 Jun 5.

PMID:
10837199
43.

Molecular epidemiology of Helicobacter pylori: separation of H. pylori from East Asian and non-Asian countries.

Yamaoka Y, Osato MS, Sepulveda AR, Gutierrez O, Figura N, Kim JG, Kodama T, Kashima K, Graham DY.

Epidemiol Infect. 2000 Feb;124(1):91-6.

44.

Furazolidone combination therapies for Helicobacter pylori infection in the United States.

Graham DY, Osato MS, Hoffman J, Opekun AR, Anderson SY, El-Zimaity HM.

Aliment Pharmacol Ther. 2000 Feb;14(2):211-5.

45.
46.
47.

Helicobacter pylori in sheep milk.

Dore MP, Sepulveda AR, Osato MS, Realdi G, Graham DY.

Lancet. 1999 Jul 10;354(9173):132.

PMID:
10408497
48.

Sensitivity of amoxicillin-resistant Helicobacter pylori to other penicillins.

Dore MP, Graham DY, Sepulveda AR, Realdi G, Osato MS.

Antimicrob Agents Chemother. 1999 Jul;43(7):1803-4.

49.

Amoxycillin tolerance in Helicobacter pylori.

Dore MP, Osato MS, Realdi G, Mura I, Graham DY, Sepulveda AR.

J Antimicrob Chemother. 1999 Jan;43(1):47-54.

PMID:
10381100
50.

Disinfection of biopsy forceps and culture of Helicobacter pylori from gastric mucosal biopsies.

Graham DY, Osato MS.

Am J Gastroenterol. 1999 May;94(5):1422-3. No abstract available.

PMID:
10235240

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