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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1971 2
1975 6
1976 6
1977 4
1978 8
1979 2
1980 5
1981 2
1982 9
1983 2
1984 5
1985 9
1986 12
1987 15
1988 17
1989 30
1990 16
1991 32
1992 28
1993 31
1994 32
1995 37
1996 24
1997 27
1998 35
1999 38
2000 31
2001 44
2002 46
2003 59
2004 50
2005 48
2006 61
2007 74
2008 86
2009 85
2010 90
2011 100
2012 100
2013 108
2014 93
2015 115
2016 104
2017 95
2018 136
2019 121
2020 133
2021 187
2022 158
2023 137
2024 155
2025 110
2026 28

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2,683 results

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Page 1
Helicobacter pylori Infection, Its Laboratory Diagnosis, and Antimicrobial Resistance: a Perspective of Clinical Relevance.
Ansari S, Yamaoka Y. Ansari S, et al. Clin Microbiol Rev. 2022 Sep 21;35(3):e0025821. doi: 10.1128/cmr.00258-21. Epub 2022 Apr 11. Clin Microbiol Rev. 2022. PMID: 35404105 Free PMC article. Review.
The antimicrobial resistance developments and treatment failure are fueling the global burden of H. pylori-associated gastric complications. Accurate diagnosis remains the opening move for treatment and eradication of infections caused by microorganisms. Although several r …
The antimicrobial resistance developments and treatment failure are fueling the global burden of H. pylori-associated gastric complic …
Helicobacter pylori Virulence Factors Exploiting Gastric Colonization and its Pathogenicity.
Ansari S, Yamaoka Y. Ansari S, et al. Toxins (Basel). 2019 Nov 19;11(11):677. doi: 10.3390/toxins11110677. Toxins (Basel). 2019. PMID: 31752394 Free PMC article. Review.
To successfully colonize and establish a persistent infection, the bacteria must overcome harsh gastric conditions. H. pylori has a well-developed mechanism by which it can survive in a very acidic niche. ...
To successfully colonize and establish a persistent infection, the bacteria must overcome harsh gastric conditions. H. pylori has a w …
2,3-Di-hydro-1H-cyclo-penta-[b]naphthalene-4,9-dione.
Kotha S, Fatma A, Ansari S. Kotha S, et al. IUCrdata. 2021 Feb 16;6(Pt 2):x210167. doi: 10.1107/S241431462100167X. eCollection 2021 Feb. IUCrdata. 2021. PMID: 36338857 Free PMC article.
The title compound, C(13)H(10)O(2), crystallizes with two almost planar mol-ecules in the asymmetric unit. In the crystal, slipped pi-pi stacking inter-actions help to establish the packing with the shortest centroid-centroid separation being 3.8195 (18) A....
The title compound, C(13)H(10)O(2), crystallizes with two almost planar mol-ecules in the asymmetric unit. In the crystal, slipped pi …
5-[(1,3-Dimethyl-5-oxo-2-sulfanylideneimidazolidin-4-yl-idene)amino]-2-methyl-isoindoline-1,3-dione.
Kotha S, Gupta NK, Ansari S. Kotha S, et al. IUCrdata. 2021 Apr 9;6(Pt 4):x210322. doi: 10.1107/S2414314621003229. eCollection 2021 Apr. IUCrdata. 2021. PMID: 36339107 Free PMC article.
The title N,N-di-methyl-thio-hydantoin containing an N-methyl-ated pthalimide group, C(14)H(12)N(4)O(3)S, arose from an unexpected reaction in a deep eutectic di-methyl-thio-urea-tartaric acid solvent system. The mean planes of the ring systems are twisted at an angle of 7 …
The title N,N-di-methyl-thio-hydantoin containing an N-methyl-ated pthalimide group, C(14)H(12)N(4)O(3)S, arose from an unexpected re …
Pathogenicity of Helicobacter pylori-associated gastric cancer.
Ansari S, Ahmed N. Ansari S, et al. World J Clin Oncol. 2025 Dec 24;16(12):110909. doi: 10.5306/wjco.v16.i12.110909. World J Clin Oncol. 2025. PMID: 41480161 Free PMC article. Review.
H. pylori harbors well-characterized proteins such as CagA, VacA, BabA, and SabA that enable persistent infection and fuel tumor initiation. ...Additionally, emerging research indicate that H. pylori may influence the tumor immune microenvironment, such as through a …
H. pylori harbors well-characterized proteins such as CagA, VacA, BabA, and SabA that enable persistent infection and fuel tumor init …
(3R*,6R*,4'S*,8'R*,3''R*,6''R*)-3,3''-Diisopropyl-6,6''-dimethyl-2',6'-di-phenyl-dispiro-[cyclo-hexane-1,4'-(3,7-dioxa-2,6-di-aza-bicyclo-[3.3.0]octa-ne)-8',1''-cyclo-hexa-ne]-2,2''-dione.
Ansari A, Majidi L, Fihi R, Daran JC, Azrour M. Ansari A, et al. Acta Crystallogr Sect E Struct Rep Online. 2013 Jun 26;69(Pt 7):o1162-3. doi: 10.1107/S1600536813017054. eCollection 2013. Acta Crystallogr Sect E Struct Rep Online. 2013. PMID: 24046707 Free PMC article.
Together, the fused oxazolidine rings have a butterfly shape, with the H atoms attached to the ring junction C atoms in a cis orientation. The cyclo-hexane rings of both p-menthone fragments display chair conformations. ...
Together, the fused oxazolidine rings have a butterfly shape, with the H atoms attached to the ring junction C atoms in a cis orienta …
Fusion proteins form onco-condensates.
Mittag T, Ansari AZ. Mittag T, et al. Nat Struct Mol Biol. 2021 Jul;28(7):543-545. doi: 10.1038/s41594-021-00608-3. Nat Struct Mol Biol. 2021. PMID: 34163089 No abstract available.
Temperature-sensitive protein-DNA dimerizers.
Hauschild KE, Metzler RE, Arndt HD, Moretti R, Raffaelle M, Dervan PB, Ansari AZ. Hauschild KE, et al. Proc Natl Acad Sci U S A. 2005 Apr 5;102(14):5008-13. doi: 10.1073/pnas.0501289102. Epub 2005 Mar 21. Proc Natl Acad Sci U S A. 2005. PMID: 15781856 Free PMC article.
Animal Models and Helicobacter pylori Infection.
Ansari S, Yamaoka Y. Ansari S, et al. J Clin Med. 2022 May 31;11(11):3141. doi: 10.3390/jcm11113141. J Clin Med. 2022. PMID: 35683528 Free PMC article. Review.
In vivo studies using several animal models have provided crucial evidence for understanding the pathophysiology of H. pylori-associated complications. Numerous animal models, such as Mongolian gerbils, transgenic mouse models, guinea pigs, and other animals, including non …
In vivo studies using several animal models have provided crucial evidence for understanding the pathophysiology of H. pylori-associa …
2,683 results