Publications by authors named "Lakshminarayana B"

The prevalence of (Hp) in India is approximately 64%. However, substantial regional variations necessitate high-fidelity, locality-specific studies to characterise its population distribution in India. We conducted a cross-sectional study including 2998 dyspeptic patients at a tertiary care centre in Karnataka and investigated the relationship between Hp prevalence and the Multidimensional Poverty Index (MPI) by district.

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In the title compound, CHFNO, which crystallizes in the monoclinic space group 2/, the cyclo-hexenone ring is puckered and adopts an envelope conformation. The crystal structure features various inter-molecular inter-actions, such as N-H⋯O, C-H⋯N and C-H⋯O. These inter-actions were investigated using Hirshfeld surface analysis and the three-dimensional inter-action energies were calculated using the B3LYP/6-31 G(d,p) energy density model.

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In the crystal, mol-ecules of the title compound, CHFINOS, are connected through C-H⋯N and C-H⋯O hydrogen bonds, I⋯O halogen bonds, π-π stacking inter-actions between the benzene and pyrimidine rings, and edge-to-edge electrostatic inter-actions, as shown by the analysis of the Hirshfeld surface and two-dimensional fingerprint plots, as well as inter-molecular inter-action energies calculated using the electron-density model at the HF/3-21 G level of theory.

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Single crystal XRD structure of the title compound reveals that the molecule adopt non-planar structure. The molecule is puckered with the total puckering amplitude of (Q) = 0.368(3)Å.

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May-Thurner syndrome, an unprovoked form of deep vein thrombosis (DVT), should be kept in mind in case of DVT with no predisposing factors. We present a case of a 37-year-old male with DVT of left lower limb due to May-Thurner syndrome, treated with anticoagulants with a plan of left common iliac vein (LCIV) stenting and inferior vena cava (IVC) filter later. Venous duplex scan showed features suggestive of May-Thurner syndrome.

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Follicular dendritic cell sarcoma is a rare low-grade sarcoma of mesenchymal origin. It involves the lymph nodes more commonly and rarely extranodal sites. The most common lymph node is cervical and usually presents as a painless asymptomatic mass.

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Drug design is an integrated and developing system that portends an era of a novel and safe tailored drugs. It involves studying the effects of biologically active synthetic, semi-synthetic, and natural compounds based on molecular interactions in terms of molecular structure with activated functional groups or its unique physicochemical properties involved. The title compound, -(2-aminophenyl)-2-(4-bromophenoxy) acetamide (), was synthesized in a good yield and characterized by different spectroscopic techniques (H, CNMR, and LC-MS) and finally, the structure was confirmed by X-ray diffraction (XRD) studies.

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Semiconducting nanomaterials play an important role in the photocatalytic removal of aqueous pollutants like heavy metals, organic compounds, pathogens and antibiotics. In this study, we prepared ZnO quantum dots (QD) by the precipitation method and ZnO/rGO materials with varying percentages (0.5-2 wt%) of ZnO were prepared by the hydrothermal method.

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We report a novel catalyst Pd/SOS that catalyzes the dual C-C bond forming coupling of an iodoarene moiety with an internal alkene and an external alkyne an intramolecular Heck reaction, followed by an intermolecular Sonogashira reaction, respectively. The catalyst was characterized using XRD, IR, XPS, SEM and TEM analyses. Notably, for the first time, cheap and readily available new silica [nanosilica on microsilica (SOS)] material-supported ultra-small Pd nanoparticles (2.

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Anilines are one of the important chemical feedstocks and are utilized for the preparation of a variety of pharmaceuticals, agrochemicals, pigments, and dyes. In this context, the catalytic reduction of nitro functionality is an industrially vital process for the synthesis of aniline derivatives. Herein, we report an efficient nanosized bimetallic Pd-Au/TiO nanomaterial which is proved to be quite efficient for rapid catalytic hydrogen transfer reduction of nitroarenes into corresponding amines.

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The title compound, CHOS, crystallizes in the triclinic space group . The mol-ecular structure is substanti-ally twisted, with a dihedral angle of 43.70 (2)° between the 2-(methyl-sulfan-yl)thio-phene and 4-meth-oxy-phenyl rings.

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The title chalcone derivative, CHClO, is almost planar, with a dihedral angle of 7.0 (2) ° between the 3,5-di-chloro-2-hy-droxy-phenyl and 5-methyl-furan rings. There is an intra-molecular O-H⋯O hydrogen bond present forming an (6) ring motif.

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Pd/CuFeO nanowire-catalyzed cross coupling transformations are described. Notably, these reactions showed excellent functional group tolerance. Further, the protocol is applied to a one-pot synthesis of benzofurans a Sonogashira coupling and intramolecular etherification sequence.

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Bone and bone marrow metastasis is extremely rare in adenocarcinoma particularly from the stomach. We present a case of gastric carcinoma primarily manifesting as anemia and pancytopenia. On evaluation, he was found to have bone marrow secondaries from a gastric primary tumor.

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In the crystal structure of the title compound, C(22)H(21)Cl(2)NO(2), the piperidinone ring is in a boat conformation.

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In the crystal structure of the title compound, C(26)H(32)ClNO(8), the piperidine ring is in a twist-chair conformation, with puckering parameters Q = 0.655 (4) Å, θ = 93.1 (1) and ϕ = 254.

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