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

Year Number of Results
1962 1
1971 2
1972 1
1975 12
1976 30
1977 29
1978 29
1979 23
1980 33
1981 18
1982 37
1983 30
1984 50
1985 47
1986 63
1987 59
1988 53
1989 64
1990 59
1991 57
1992 65
1993 64
1994 66
1995 90
1996 82
1997 98
1998 84
1999 107
2000 117
2001 147
2002 137
2003 148
2004 183
2005 205
2006 253
2007 306
2008 333
2009 383
2010 419
2011 476
2012 532
2013 549
2014 544
2015 555
2016 513
2017 460
2018 606
2019 634
2020 712
2021 831
2022 785
2023 770
2024 285

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10,928 results

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Page 1
Helicobacter pylori associated chronic gastritis, clinical syndromes, precancerous lesions, and pathogenesis of gastric cancer development.
Watari J, Chen N, Amenta PS, Fukui H, Oshima T, Tomita T, Miwa H, Lim KJ, Das KM. Watari J, et al. Among authors: das km. World J Gastroenterol. 2014 May 14;20(18):5461-73. doi: 10.3748/wjg.v20.i18.5461. World J Gastroenterol. 2014. PMID: 24833876 Free PMC article. Review.
In contrast, many studies, including meta-analysis, show that H. pylori eradication reduces GC. Molecular markers detected by genetic and epigenetic alterations related to carcinogenesis reverse following H. pylori eradication. ...Therefore, earlier H. pylori …
In contrast, many studies, including meta-analysis, show that H. pylori eradication reduces GC. Molecular markers detected by genetic …
Enantioselective C-H bond functionalization under Co(III)-catalysis.
Garai B, Das A, Kumar DV, Sundararaju B. Garai B, et al. Among authors: das a. Chem Commun (Camb). 2024 Mar 21;60(25):3354-3369. doi: 10.1039/d3cc05329f. Chem Commun (Camb). 2024. PMID: 38441168 Review.
While progress in enantioselective C-H functionalization has been accomplished by employing 4d and 5d transition metal-based catalysts, the rapid depletion of these metals in the earth's crust poses a serious threat to making these protocols sustainable. ...Among the first …
While progress in enantioselective C-H functionalization has been accomplished by employing 4d and 5d transition metal-based catalyst …
On reciprocal degree distance of graphs.
An M, Zhang Y, Das KC, Shang Y. An M, et al. Among authors: das kc. Heliyon. 2023 Jul 4;9(7):e17914. doi: 10.1016/j.heliyon.2023.e17914. eCollection 2023 Jul. Heliyon. 2023. PMID: 37456006 Free PMC article.
Given a connected graph H, its reciprocal degree distance is defined as RDD(H) = x y/, where dH(vx) denotes the degree of the vertex vx in the graph H and dH(vx, vy) is the shortest distance between vx and vy in H. The goal of this paper is to establis …
Given a connected graph H, its reciprocal degree distance is defined as RDD(H) = x y/, where dH(vx) denotes the degree of the …
Nitrene Photochemistry of Manganese N-Haloamides*.
Van Trieste GP 3rd, Reid KA, Hicks MH, Das A, Figgins MT, Bhuvanesh N, Ozarowski A, Telser J, Powers DC. Van Trieste GP 3rd, et al. Among authors: das a. Angew Chem Int Ed Engl. 2021 Dec 13;60(51):26647-26655. doi: 10.1002/anie.202108304. Epub 2021 Nov 16. Angew Chem Int Ed Engl. 2021. PMID: 34662473
Here we report the synthesis and nitrene transfer photochemistry of a family of Mn(III) N-haloamide complexes. The S=2 N-haloamide complexes are characterized by (1) H NMR, UV-vis, IR, high-frequency and -field EPR (HFEPR) spectroscopies, and single-crystal X-ray diffracti …
Here we report the synthesis and nitrene transfer photochemistry of a family of Mn(III) N-haloamide complexes. The S=2 N-haloamide complexes …
Copper(II)-Mediated, Site-Selective C(sp(2))-H Sulfonamidation of 1-Naphthylamines.
Hajra AK, Ghosh P, Paul P, Kundu M, Das S. Hajra AK, et al. Among authors: das s. J Org Chem. 2023 Dec 15;88(24):16985-16996. doi: 10.1021/acs.joc.3c01852. Epub 2023 Dec 4. J Org Chem. 2023. PMID: 38048479
An operationally simple and efficient protocol for copper(II)-mediated, picolinamido-directed C8-H sulfonamidation of 1-naphthylamine derivatives with various sulfonamides has been developed. Remarkably, this cross-dehydrogenative C-H/H-N coupling reaction ex …
An operationally simple and efficient protocol for copper(II)-mediated, picolinamido-directed C8-H sulfonamidation of 1-naphthylamine …
Enzymatic Nitrogen Insertion into Unactivated C-H Bonds.
Athavale SV, Gao S, Das A, Mallojjala SC, Alfonzo E, Long Y, Hirschi JS, Arnold FH. Athavale SV, et al. Among authors: das a. J Am Chem Soc. 2022 Oct 19;144(41):19097-19105. doi: 10.1021/jacs.2c08285. Epub 2022 Oct 4. J Am Chem Soc. 2022. PMID: 36194202 Free PMC article.
Selective functionalization of aliphatic C-H bonds, ubiquitous in molecular structures, could allow ready access to diverse chemical products. ...Likewise, synthetic methods for selective nitrogen derivatization of unbiased C-H bonds remain elusive. In this work, ne …
Selective functionalization of aliphatic C-H bonds, ubiquitous in molecular structures, could allow ready access to diverse chemical …
Stabilizing histamine release in gut mast cells mitigates peripheral and central inflammation after stroke.
Conesa MPB, Blixt FW, Peesh P, Khan R, Korf J, Lee J, Jagadeesan G, Andersohn A, Das TK, Tan C, Di Gesu C, Colpo GD, Moruno-Manchón JF, McCullough LD, Bryan R, Ganesh BP. Conesa MPB, et al. Among authors: das tk. J Neuroinflammation. 2023 Oct 7;20(1):230. doi: 10.1186/s12974-023-02887-7. J Neuroinflammation. 2023. PMID: 37805585 Free PMC article.
After MCAO we treated mice with 25 mg/kg body weight of cromolyn (MC stabilizer) by oral gavage. Cromolyn was administered at 3 h, 10 h, 24 h and every 24 h for 3 days post-stroke. Three control groups were used. ...Treatment with cromolyn reduced plas …
After MCAO we treated mice with 25 mg/kg body weight of cromolyn (MC stabilizer) by oral gavage. Cromolyn was administered at 3 h, 10 …
Crosstalk between Helicobacter pylori and gastrointestinal microbiota in various gastroduodenal diseases-A systematic review.
Sharma P, Phatak SM, Warikoo P, Mathur A, Mahant S, Das K, Das R. Sharma P, et al. Among authors: das r, das k. 3 Biotech. 2023 Sep;13(9):303. doi: 10.1007/s13205-023-03734-5. Epub 2023 Aug 14. 3 Biotech. 2023. PMID: 37588796 Review.
The analysis of these selected studies highlighted the inhabitation of other gut microbiota such as Fusobacteria, Bacteroidetes, Streptococcaceae, Prevotellaceae, Fusobacteriaceae, and many others. Interplay between these microbiota and H. pylori have also been noted which …
The analysis of these selected studies highlighted the inhabitation of other gut microbiota such as Fusobacteria, Bacteroidetes, Streptococc …
Enantioselective C-H Functionalization Reactions under Gold Catalysis.
Das A, Patil NT. Das A, et al. Chemistry. 2022 Apr 6;28(20):e202104371. doi: 10.1002/chem.202104371. Epub 2022 Feb 15. Chemistry. 2022. PMID: 35014732 Review.
Transition metal-catalyzed enantioselective functionalization of ubiquitous C-H bonds has proven to be promising field as it offers the construction of chiral molecular complexity in a step- and atom-economical manner. ...The unique reactivities and selectivities offered b …
Transition metal-catalyzed enantioselective functionalization of ubiquitous C-H bonds has proven to be promising field as it offers t …
Iron-Catalyzed Intermolecular Amination of Benzylic C(sp(3))-H Bonds.
Khatua H, Das S, Patra S, Das SK, Roy S, Chattopadhyay B. Khatua H, et al. Among authors: das sk, das s. J Am Chem Soc. 2022 Dec 7;144(48):21858-21866. doi: 10.1021/jacs.2c10719. Epub 2022 Nov 23. J Am Chem Soc. 2022. PMID: 36416746
A catalytic system for intermolecular benzylic C(sp(3))-H amination is developed utilizing 1,2,3,4-tetrazole as a nitrene precursor via iron catalysis. This method enables direct installation of 2-aminopyridine into the benzylic and heterobenzylic position. The method sele …
A catalytic system for intermolecular benzylic C(sp(3))-H amination is developed utilizing 1,2,3,4-tetrazole as a nitrene precursor v …
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