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Singh D, Tripathi A, Bhati J, Taunk J, Singh D, Siddiqui MH, Singh MP. Genome wide identification and expression profiling of ATP binding cassette (ABC) transporters gene family in lentil (Lens culinaris Medikus) under aluminium stress condition. Plant Physiol Biochem 2024; 211:108710. [PMID: 38735154 DOI: 10.1016/j.plaphy.2024.108710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/22/2024] [Accepted: 05/06/2024] [Indexed: 05/14/2024]
Abstract
Adenosine triphosphate-binding cassette transporters (ABC transporters) are involved in regulating plant growth, development and tolerance to environmental stresses. In this study, a total of 138 ABC transporter genes were identified in the lentil genome that were classified into eight subfamilies. Four lentil ABC transporters from subfamily B and I were clustered together with the previously characterized ABC transporter proteins related to aluminium (Al) detoxification. Lentil ABC transporter genes were distributed across the chromosomes. Tandem duplication was the main driving force for expansion of the ABC gene family. Collinearity of lentil with soybean indicated that ABC gene family is closely linked to Glycine max. ABC genes in the same subfamily showed similar gene structure and conserved motifs. The ABC promoter regions harboured a large number of plant hormones and multiple stress responsive cis-regulatory elements. The qRT-PCR showed that ABC genes had varied expression in roots of lentil at different time points under Al stress. This is the first report on genome wide identification and expression analyses of genes encoding ABC transporter genes in lentil which has provided in-depth insight for future research on evolution and elucidation of molecular mechanisms for aluminium tolerance.
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Affiliation(s)
- Dharmendra Singh
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
| | - Ankita Tripathi
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Jyotika Bhati
- ICAR-India Agricultural Statistics Research Institute, New Delhi, 110012, India
| | - Jyoti Taunk
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Deepti Singh
- Department of Botany, Meerut College, Meerut, 250001, India
| | - Manzer H Siddiqui
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Madan Pal Singh
- Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India
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2
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Haefner J, Navarro KE, Guenette R, Jones BJP, Tripathi A, Adams C, Almazán H, Álvarez V, Aparicio B, Aranburu AI, Arazi L, Arnquist IJ, Auria-Luna F, Ayet S, Azevedo CDR, Bailey K, Ballester F, Barrio-Torregrosa MD, Bayo A, Benlloch-Rodríguez JM, Borges FIGM, Brodolin A, Byrnes N, Cárcel S, Carrión JV, Cebrián S, Church E, Cid L, Conde CAN, Contreras T, Cossío FP, Dey E, Díaz G, Dickel T, Elorza M, Escada J, Esteve R, Felkai R, Fernandes LMP, Ferrario P, Ferreira AL, Foss FW, Freitas EDC, Freixa Z, Generowicz J, Goldschmidt A, Gómez-Cadenas JJ, González R, Grocott J, Hafidi K, Hauptman J, Henriques CAO, Morata JAH, Herrero-Gómez P, Herrero V, Hervés Carrete C, Ifergan Y, Labarga L, Larizgoitia L, Larumbe A, Lebrun P, Lopez F, López-March N, Madigan R, Mano RDP, Marques AP, Martín-Albo J, Martínez-Lema G, Martínez-Vara M, Meziani ZE, Miller RL, Mistry K, Molina-Canteras J, Monrabal F, Monteiro CMB, Mora FJ, Muñoz Vidal J, Novella P, Nuñez A, Nygren DR, Oblak E, Palacio J, Palmeiro B, Para A, Parmaksiz I, Pelegrin J, Pérez Maneiro M, Querol M, Redwine AB, Renner J, Rivilla I, Rodríguez J, Rogero C, Rogers L, Romeo B, Romo-Luque C, Santos FP, dos Santos JMF, Shomroni I, Simón A, Soleti SR, Sorel M, Soto-Oton J, Teixeira JMR, Toledo JF, Torrent J, Trettin A, Usón A, Veloso JFCA, Waiton J, White JT. Demonstration of event position reconstruction based on diffusion in the NEXT-white detector. Eur Phys J C Part Fields 2024; 84:518. [PMID: 38784120 PMCID: PMC11108901 DOI: 10.1140/epjc/s10052-024-12865-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/29/2024] [Indexed: 05/25/2024]
Abstract
Noble element time projection chambers are a leading technology for rare event detection in physics, such as for dark matter and neutrinoless double beta decay searches. Time projection chambers typically assign event position in the drift direction using the relative timing of prompt scintillation and delayed charge collection signals, allowing for reconstruction of an absolute position in the drift direction. In this paper, alternate methods for assigning event drift distance via quantification of electron diffusion in a pure high pressure xenon gas time projection chamber are explored. Data from the NEXT-White detector demonstrate the ability to achieve good position assignment accuracy for both high- and low-energy events. Using point-like energy deposits from 83mKr calibration electron captures (E ∼ 45 keV), the position of origin of low-energy events is determined to 2 cm precision with bias < 1 mm. A convolutional neural network approach is then used to quantify diffusion for longer tracks (E ≥ 1.5 MeV), from radiogenic electrons, yielding a precision of 3 cm on the event barycenter. The precision achieved with these methods indicates the feasibility energy calibrations of better than 1% FWHM at Qββ in pure xenon, as well as the potential for event fiducialization in large future detectors using an alternate method that does not rely on primary scintillation.
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Affiliation(s)
- J. Haefner
- Department of Physics, Harvard University, Cambridge, 02138 MA USA
| | - K. E. Navarro
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - R. Guenette
- Department of Physics and Astronomy, Manchester University, Manchester, M13 9PL UK
| | - B. J. P. Jones
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - A. Tripathi
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - C. Adams
- Argonne National Laboratory, Argonne, IL 60439 USA
| | - H. Almazán
- Department of Physics and Astronomy, Manchester University, Manchester, M13 9PL UK
| | - V. Álvarez
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC-Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - B. Aparicio
- Department of Organic Chemistry I, University of the Basque Country (UPV/EHU), Centro de Innovación en Química Avanzada (ORFEO-CINQA), 20018 San Sebastián/Donostia, Spain
| | - A. I. Aranburu
- Department of Applied Chemistry, Universidad del Pais Vasco (UPV/EHU), Manuel de Lardizabal 3, 20018 San Sebastián/Donostia, Spain
| | - L. Arazi
- Unit of Nuclear Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva, 8410501 Israel
| | - I. J. Arnquist
- Pacific Northwest National Laboratory (PNNL), Richland, WA 99352 USA
| | - F. Auria-Luna
- Department of Organic Chemistry I, University of the Basque Country (UPV/EHU), Centro de Innovación en Química Avanzada (ORFEO-CINQA), 20018 San Sebastián/Donostia, Spain
| | - S. Ayet
- II. Physikalisches Institut, Justus-Liebig-Universitat Giessen, Giessen, Germany
| | - C. D. R. Azevedo
- Institute of Nanostructures, Nanomodelling and Nanofabrication (i3N), Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - K. Bailey
- Argonne National Laboratory, Argonne, IL 60439 USA
| | - F. Ballester
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC-Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - M. del Barrio-Torregrosa
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - A. Bayo
- Laboratorio Subterráneo de Canfranc, Paseo de los Ayerbe s/n, Canfranc Estación, 22880 Spain
| | - J. M. Benlloch-Rodríguez
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - F. I. G. M. Borges
- LIP, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal
| | - A. Brodolin
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Centro de Física de Materiales (CFM), CSIC and Universidad del Pais Vasco (UPV/EHU), Manuel de Lardizabal 5, 20018 San Sebastián/Donostia, Spain
| | - N. Byrnes
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - S. Cárcel
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - J. V. Carrión
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - S. Cebrián
- Centro de Astropartículas y Física de Altas Energías (CAPA), Universidad de Zaragoza, Calle Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - E. Church
- Pacific Northwest National Laboratory (PNNL), Richland, WA 99352 USA
| | - L. Cid
- Laboratorio Subterráneo de Canfranc, Paseo de los Ayerbe s/n, Canfranc Estación, 22880 Spain
| | - C. A. N. Conde
- LIP, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal
| | - T. Contreras
- Department of Physics, Harvard University, Cambridge, 02138 MA USA
| | - F. P. Cossío
- Department of Applied Chemistry, Universidad del Pais Vasco (UPV/EHU), Manuel de Lardizabal 3, 20018 San Sebastián/Donostia, Spain
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - E. Dey
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - G. Díaz
- Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela, Campus sur, Rúa Xosé María Suárez Núñez, s/n, 15782 Santiago de Compostela, Spain
| | - T. Dickel
- II. Physikalisches Institut, Justus-Liebig-Universitat Giessen, Giessen, Germany
| | - M. Elorza
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - J. Escada
- LIP, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal
| | - R. Esteve
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC-Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - R. Felkai
- Unit of Nuclear Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva, 8410501 Israel
- Present Address: Weizmann Institute of Science, Rehovot, Israel
| | - L. M. P. Fernandes
- LIBPhys, Physics Department, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - P. Ferrario
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Ikerbasque (Basque Foundation for Science), 48009 Bilbao, Spain
| | - A. L. Ferreira
- Institute of Nanostructures, Nanomodelling and Nanofabrication (i3N), Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - F. W. Foss
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX 76019 USA
| | - E. D. C. Freitas
- LIBPhys, Physics Department, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - Z. Freixa
- Department of Applied Chemistry, Universidad del Pais Vasco (UPV/EHU), Manuel de Lardizabal 3, 20018 San Sebastián/Donostia, Spain
- Ikerbasque (Basque Foundation for Science), 48009 Bilbao, Spain
| | - J. Generowicz
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - A. Goldschmidt
- Lawrence Berkeley National Laboratory (LBNL), 1 Cyclotron Road, Berkeley, CA 94720 USA
| | - J. J. Gómez-Cadenas
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Ikerbasque (Basque Foundation for Science), 48009 Bilbao, Spain
| | - R. González
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - J. Grocott
- Department of Physics and Astronomy, Manchester University, Manchester, M13 9PL UK
| | - K. Hafidi
- Argonne National Laboratory, Argonne, IL 60439 USA
| | - J. Hauptman
- Department of Physics and Astronomy, Iowa State University, Ames, IA 50011-3160 USA
| | - C. A. O. Henriques
- LIBPhys, Physics Department, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - J. A. Hernando Morata
- Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela, Campus sur, Rúa Xosé María Suárez Núñez, s/n, 15782 Santiago de Compostela, Spain
| | - P. Herrero-Gómez
- Hebrew University, Edmond J. Safra Campus, Jerusalem, 9190401 Israel
| | - V. Herrero
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC-Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - C. Hervés Carrete
- Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela, Campus sur, Rúa Xosé María Suárez Núñez, s/n, 15782 Santiago de Compostela, Spain
| | - Y. Ifergan
- Unit of Nuclear Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva, 8410501 Israel
| | - L. Labarga
- Departamento de Física Teórica, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain
| | - L. Larizgoitia
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - A. Larumbe
- Department of Organic Chemistry I, University of the Basque Country (UPV/EHU), Centro de Innovación en Química Avanzada (ORFEO-CINQA), 20018 San Sebastián/Donostia, Spain
| | - P. Lebrun
- Fermi National Accelerator Laboratory, Batavia, IL 60510 USA
| | - F. Lopez
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - N. López-March
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - R. Madigan
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX 76019 USA
| | - R. D. P. Mano
- LIBPhys, Physics Department, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - A. P. Marques
- LIP, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal
| | - J. Martín-Albo
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - G. Martínez-Lema
- Unit of Nuclear Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva, 8410501 Israel
| | - M. Martínez-Vara
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | | | - R. L. Miller
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX 76019 USA
| | - K. Mistry
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - J. Molina-Canteras
- Department of Organic Chemistry I, University of the Basque Country (UPV/EHU), Centro de Innovación en Química Avanzada (ORFEO-CINQA), 20018 San Sebastián/Donostia, Spain
| | - F. Monrabal
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Ikerbasque (Basque Foundation for Science), 48009 Bilbao, Spain
| | - C. M. B. Monteiro
- LIBPhys, Physics Department, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - F. J. Mora
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC-Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - J. Muñoz Vidal
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - P. Novella
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - A. Nuñez
- Laboratorio Subterráneo de Canfranc, Paseo de los Ayerbe s/n, Canfranc Estación, 22880 Spain
| | - D. R. Nygren
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - E. Oblak
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - J. Palacio
- Laboratorio Subterráneo de Canfranc, Paseo de los Ayerbe s/n, Canfranc Estación, 22880 Spain
| | - B. Palmeiro
- Department of Physics and Astronomy, Manchester University, Manchester, M13 9PL UK
| | - A. Para
- Fermi National Accelerator Laboratory, Batavia, IL 60510 USA
| | - I. Parmaksiz
- Department of Physics, University of Texas at Arlington, Arlington, 76019 TX USA
| | - J. Pelegrin
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - M. Pérez Maneiro
- Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela, Campus sur, Rúa Xosé María Suárez Núñez, s/n, 15782 Santiago de Compostela, Spain
| | - M. Querol
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - A. B. Redwine
- Unit of Nuclear Engineering, Faculty of Engineering Sciences, Ben-Gurion University of the Negev, P.O.B. 653, Beer-Sheva, 8410501 Israel
| | - J. Renner
- Instituto Gallego de Física de Altas Energías, Univ. de Santiago de Compostela, Campus sur, Rúa Xosé María Suárez Núñez, s/n, 15782 Santiago de Compostela, Spain
| | - I. Rivilla
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Ikerbasque (Basque Foundation for Science), 48009 Bilbao, Spain
| | - J. Rodríguez
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC-Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - C. Rogero
- Centro de Física de Materiales (CFM), CSIC and Universidad del Pais Vasco (UPV/EHU), Manuel de Lardizabal 5, 20018 San Sebastián/Donostia, Spain
| | - L. Rogers
- Argonne National Laboratory, Argonne, IL 60439 USA
| | - B. Romeo
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - C. Romo-Luque
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - F. P. Santos
- LIP, Department of Physics, University of Coimbra, 3004-516 Coimbra, Portugal
| | - J. M. F. dos Santos
- LIBPhys, Physics Department, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - I. Shomroni
- Hebrew University, Edmond J. Safra Campus, Jerusalem, 9190401 Israel
| | - A. Simón
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - S. R. Soleti
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
| | - M. Sorel
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - J. Soto-Oton
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - J. M. R. Teixeira
- LIBPhys, Physics Department, University of Coimbra, Rua Larga, 3004-516 Coimbra, Portugal
| | - J. F. Toledo
- Instituto de Instrumentación para Imagen Molecular (I3M), Centro Mixto CSIC-Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
| | - J. Torrent
- Donostia International Physics Center, BERC Basque Excellence Research Centre, Manuel de Lardizabal 4, 20018 San Sebastián/Donostia, Spain
- Escola Politècnica Superior, Universitat de Girona, Av. Montilivi, s/n, 17071 Girona, Spain
| | - A. Trettin
- Department of Physics and Astronomy, Manchester University, Manchester, M13 9PL UK
| | - A. Usón
- Instituto de Física Corpuscular (IFIC), CSIC and Universitat de València, Calle Catedrático José Beltrán, 2, 46980 Paterna, Spain
| | - J. F. C. A. Veloso
- Institute of Nanostructures, Nanomodelling and Nanofabrication (i3N), Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - J. Waiton
- Department of Physics and Astronomy, Manchester University, Manchester, M13 9PL UK
| | - J. T. White
- Department of Physics and Astronomy, Texas A &M University, College Station, TX 77843-4242 USA
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3
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Patel M, Jaiswal A, Naseer A, Tripathi A, Joshi A, Minocha T, Kautu A, Gupta S, Joshi KB, Pandey MK, Kumar R, Dubey KD, Nazir A, Verma S, Gour N. Amyloidogenic Propensity of Metabolites in the Uric Acid Pathway and Urea Cycle Critically Impacts the Etiology of Metabolic Disorders. ACS Chem Neurosci 2024; 15:916-931. [PMID: 38369717 DOI: 10.1021/acschemneuro.3c00563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024] Open
Abstract
Novel insights into the etiology of metabolic disorders have recently been uncovered through the study of metabolite amyloids. In particular, inborn errors of metabolism (IEMs), including gout, Lesch-Nyhan syndrome (LNS), xanthinuria, citrullinemia, and hyperornithinemia-hyperammonemia-homocitrullinuria (HHH) syndrome, are attributed to the dysfunction of the urea cycle and uric acid pathway. In this study, we endeavored to understand and mechanistically characterize the aggregative property exhibited by the principal metabolites of the urea cycle and uric acid pathway, specifically hypoxanthine, xanthine, citrulline, and ornithine. Employing scanning electron microscopy (SEM), transmission electron microscopy (TEM), and atomic force microscopy (AFM), we studied the aggregation profiles of the metabolites. Insights obtained through molecular dynamics (MD) simulation underscore the vital roles of π-π stacking and hydrogen bonding interactions in the self-assembly process, and thioflavin T (ThT) assays further corroborate the amyloid nature of these metabolites. The in vitro MTT assay revealed the cytotoxic trait of these assemblies, a finding that was substantiated by in vivo assays employing the Caenorhabditis elegans (C. elegans) model, which revealed that the toxic effects were more pronounced and dose-specific in the case of metabolites that had aged via longer preincubation. We hence report a compelling phenomenon wherein these metabolites not only aggregate but transform into a soft, ordered assembly over time, eventually crystallizing upon extended incubation, leading to pathological implications. Our study suggests that the amyloidogenic nature of the involved metabolites could be a common etiological link in IEMs, potentially providing a unified perspective to study their pathophysiology, thus offering exciting insights into the development of targeted interventions for these metabolic disorders.
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Affiliation(s)
- Monisha Patel
- School of Science, Indrashil University, Kadi, Mehsana, Gujarat, 382740, India
| | - Ankita Jaiswal
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Anam Naseer
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Division of Toxicology & Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Ankita Tripathi
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Aayushi Joshi
- Department of Chemistry, Pandit Deendayal Petroleum University, Gandhinagar, Gujarat 382009, India
| | - Tarun Minocha
- Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Aanand Kautu
- Department of Chemistry, Dr. Hari Singh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Shilpi Gupta
- School of Science, Indrashil University, Kadi, Mehsana, Gujarat, 382740, India
| | - Khashti Ballabh Joshi
- Department of Chemistry, Dr. Hari Singh Gour University, Sagar, Madhya Pradesh 470003, India
| | - Manoj Kumar Pandey
- Department of Chemistry, Pandit Deendayal Petroleum University, Gandhinagar, Gujarat 382009, India
| | - Randhir Kumar
- Department of Biosciences, School of Science, Indrashil University, Kadi, Mehsana, Gujarat 382740, India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh 201314, India
| | - Aamir Nazir
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Division of Toxicology & Experimental Medicine, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Sandeep Verma
- Gangwal School of Medical Sciences and Technology, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Nidhi Gour
- School of Science, Indrashil University, Kadi, Mehsana, Gujarat, 382740, India
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Tripathi A, Santos D, Daniel D, Dhamoon MS. Patterns and outcomes of weekend admission for acute ischemic stroke. J Stroke Cerebrovasc Dis 2023; 32:107250. [PMID: 37441891 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND AND OBJECTIVES The "weekend effect" describes worse care delivery during off-hours or weekends and has been demonstrated in multiple sub-specialties. Off-hours care for acute ischemic stroke (AIS) has been associated with poorer outcomes. However, there is less data about the "weekend effect" on endovascular thrombectomy (ET) outcomes. METHODS We used Medicare 100% sample datasets and included all AIS admissions from 2018-2019, using validated International Classification of Diseases, 10th Revision, Clinical Modification codes to identify AIS and comorbidities. Medicare provides the date of admission for all hospitalizations, and the day of the week was determined and assigned to weekend (Saturday or Sunday) or weekday (Monday through Friday). We defined 3 major outcomes: inpatient mortality, discharge home (vs. other destination), and 30-day mortality. RESULTS Among 471427 AIS admissions,13.0% and 12.9% of all AIS admissions occurred on a Saturday and Sunday, respectively, less than the expected 14.3% occurring on any given day (p-value <0.0001). AIS admissions on a weekend were less likely to receive IV thrombolysis (13.6% on Saturday and 12.9% on Sunday) and ET (13.1% on Saturday and 13.2% on Sunday), p-value <0.0001. Among all AIS admissions, weekend admission was associated with worse outcomes, including higher odds of inpatient mortality (adjusted OR 1.04 [95% CI 1.01-1.08, p<0.0001]), lower odds of discharge home (0.94 [0.93-0.96, p<0.0001]), and higher odds of 30-day mortality (1.06 [1.04-1.08, p<0.0001]). However, among AIS patients treated with ET, there was no association of weekend admission with outcomes. CONCLUSIONS In this national and contemporary dataset, we observed that the proportion of thrombolysis and ET cases was less over the weekend, and outcomes (inpatient mortality, 30-day mortality and odds of discharge home) were worse overall. We did not observe this association among AIS patients undergoing ET on a weekend vs. weekday.
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Affiliation(s)
- Ankita Tripathi
- Department of Neurology, Mount Sinai Downtown, New York, NY, United States
| | - Daniel Santos
- Department of Neurology, Hospital of the University of Pennsylvania, Philadelphia, PA, United States
| | - David Daniel
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Ave, Annenberg 2nd Floor, room 2-44B, New York, NY 10029, United States
| | - Mandip S Dhamoon
- Department of Neurology, Icahn School of Medicine at Mount Sinai, 1468 Madison Ave, Annenberg 2nd Floor, room 2-44B, New York, NY 10029, United States.
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Tripathi A, Dubey KD. A single site mutation can induce functional promiscuity in homoserine kinase. Org Biomol Chem 2023. [PMID: 37212194 DOI: 10.1039/d3ob00459g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
L-Homoserine kinase is crucial in the biosynthesis of L-threonine, L-isoleucine, and L-methionine, where it catalyzes ATP-dependent phosphorylation of L-homoserine (Hse) to yield L-homoserine phosphate as its native activity. However, a single site mutation of H138 → L shows the emergence of ATPase activity as a secondary function. However, a previous mechanistic study proposes direct involvement of ATP and the substrate without any catalytic base; therefore, how the mutation of H138 → L causes the secondary function remains an enigma. Using computational tools herein, we provide new insight into the catalytic mechanism of L-homoserine kinase, showing direct involvement of H138 as a catalytic base. We show that mutation of H138 → L opens a new water channel connecting ATP, which facilitates the ATPase activity and reduces the native activity. The proposed mechanism agrees with the experimental finding that an H138 → L mutation reduces the kinase activity but enhances a promiscuous function, i.e. ATPase activity. Since homoserine kinase catalyzes the biosynthesis of amino acids, we believe that an accurate mechanism could be significant for enzyme engineering to synthesize amino acid analogs.
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Affiliation(s)
- Ankita Tripathi
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh, 201314, India.
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh, 201314, India.
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6
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Tripathi A, Stein LK, Dhamoon MS. Patterns in the number of interventionalists for endovascular treatment of acute ischemic stroke in the US. J Stroke Cerebrovasc Dis 2023; 32:106943. [PMID: 36521372 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/10/2022] [Accepted: 12/10/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Endovascular thrombectomy (ET) has become the standard of stroke care for large vessel occlusion acute ischemic stroke (AIS) involving the anterior circulation. With continued eligibility expansion, the demand for neuro-intervention is growing. Current estimates indicate inadequate supply of interventionalists. However, there is limited data describing the number of interventionalists per hospital in the US, and correlations with outcomes. METHODS We used Medicare 100% sample datasets and included all AIS admissions from 2018 to 2019, using validated International Classification of Diseases, 10th Revision, Clinical Modification codes to identify AIS and comorbidities. We utilized National Provider Identifier codes to identify distinct interventionalists at the hospital. We examined outcomes at the hospital level, including percent of AIS treated with thrombolysis, percent of AIS with inpatient mortality, percent of AIS with discharge home, and percent of AIS with death within 30 days. RESULTS Among 471,427 AIS admissions, 16,253 received ET over the 2-year period of the study. Only 683 of 4576 AIS-treating institutions provided ET (14.9%). These ET centers most frequently only had one interventionalist performing ET and were clustered in large metropolitan areas with high AIS volumes. As AIS volumes, ET volumes, and mean NIHSS scores increased, so did the number of interventionalists. With each additional interventionalist, there was an increased likelihood of poor outcomes including inpatient mortality, discharge home, and 30-day mortality. CONCLUSIONS We confirmed a relative lack of neuro-interventionalists among US hospitals, with a concentration of interventionalists in urban, high-volume centers. The greater likelihood of poor outcomes associated with increasing number of interventionalists is likely due to increasing complexity and severity of cases at high-volume ET centers, but further study is needed.
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Affiliation(s)
- Ankita Tripathi
- Department of Neurology, Mount Sinai Downtown, New York, NY, United States.
| | - Laura K Stein
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
| | - Mandip S Dhamoon
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States.
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Yadav S, Kardam V, Tripathi A, T G S, Dubey KD. The Performance of Different Water Models on the Structure and Function of Cytochrome P450 Enzymes. J Chem Inf Model 2022; 62:6679-6690. [PMID: 36073971 DOI: 10.1021/acs.jcim.2c00505] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Modeling approaches and modern simulations to investigate the biomolecular structure and function rely on various methods. Since water molecules play a crucial role in all sorts of chemistry, the accurate modeling of water molecules is vital for such simulations. In cytochrome P450 (CYP450), in particular, water molecules play a key role in forming active oxidant that ultimately performs oxidation and metabolism. In the present study, we have highlighted the behavior of the three most widely used water models─TIP3P, SPC/E, and OPC─for three different CYP450 enzymes─CYP450BM3, CYP450OleT, and CYP450BSβ─during MD simulations and QM/MM calculations. We studied the various properties, such as RMSD, RMSF, H-bond, water occupancy, and hydrogen atom transfer (HAT), using QM/MM calculations and compared them for all three water models. Our study shows that the stabilities of the enzyme complexes are well maintained in all three water models. However, the OPC water model performs well for the polar active sites, that is, in CYP450OleT and CYP450BSβ, while the TIP3P water model is superior for the hydrophobic site, such as CYP450BM3.
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Affiliation(s)
- Shalini Yadav
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Delhi-NCR, Gautam Buddha Nagar, U.P. 201314, India
| | - Vandana Kardam
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Delhi-NCR, Gautam Buddha Nagar, U.P. 201314, India
| | - Ankita Tripathi
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Delhi-NCR, Gautam Buddha Nagar, U.P. 201314, India
| | - Shruti T G
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Delhi-NCR, Gautam Buddha Nagar, U.P. 201314, India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University Delhi-NCR, Gautam Buddha Nagar, U.P. 201314, India
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Tripathi DK, Chadha S, Tripathi A. Metaheuristic enabled intelligent model for stock market prediction via integrating volatility spillover: India and its Asian and European counterparts. DATA KNOWL ENG 2022. [DOI: 10.1016/j.datak.2022.102127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Singh P, Efstathiou J, Plets M, Jhavar S, Delacroix S, Tripathi A, Gupta A, Sachdev S, Jani A, Kirschner A, Tangen C, Bangs R, Joshi M, Costello B, Thompson I, Feng F, Lerner S. INTACT (S/N1806): Phase III Randomized Trial of Concurrent Chemoradiotherapy with or without Atezolizumab in Localized Muscle Invasive Bladder Cancer—Toxicity Update on First 213 Patients. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gupta S, Das N, Amaranath-Bj J, Gupta I, Tripathi A, Singh D. Knowledge and Awareness about Systemic Effects of Periodontal Disease among Medical, Dental and Alternate Medical Practitioners and Their Referral Practice to Periodontists. Mymensingh Med J 2022; 31:1153-1161. [PMID: 36189566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In the past few decades, many medical professionals and dentists have paid close notice to their own fields, specializing in medicine pertaining to body and oral cavity respectively. Currently, this void is rapidly closing between all medical specialties, in presence of significant findings that supports association between periodontal disease and systemic conditions. Till now, some practitioners are not aware about the specialties of dentistry that results in improper referral practices. There are few studies on referral practice pertaining to periodontist, not with standing the fact that clear and effective communication between all health practitioners is essential for good practice. A cross-sectional study was carried out to assess the knowledge and awareness about systemic effects of periodontal disease among medical, dental and alternate medical practitioners and their referral practice to periodontist in Kanpur city. This cross-sectional study was carried out using self-reported questionnaire, distributed to 560 practitioners of various medical fields from January 2020 to August 2021. A total of 206(36.8%) Medical, 194(34.6%) Dentists and 160(28.6%) alternative practitioners participated in study. More than half participants agreed about relationship between periodontal diseases and Diabetes Mellitus, Cardio-VascularDisease and Adverse Pregnancy Outcomes. Among all 31.3% showed good knowledge level while 2.7% showed perfect level of practitioner's referral practice to periodontist. Dentists had statistically higher level of awareness compared to physicians. Referral practice to periodontist was deficit by medical and alternate medical practitioners despite of fact; they have good knowledge of relationship between periodontal disease and systemic health. Hence, interdisciplinary dental and medical training of practitioners is recommended.
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Affiliation(s)
- S Gupta
- Dr Shruti Gupta, Associate Professor, Department of Periodontology, Rama Dental College Hospital & Research Centre, Kanpur, Uttar Pradesh (UP), India; E-mail:
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Tripathi A, Ranjan MR, Verma DK, Singh Y, Shukla SK, Rajput VD, Minkina T, Mishra PK, Garg MC. Author Correction: ANN-GA based biosorption of As(III) from water through chemo-tailored and iron impregnated fungal biofilter system. Sci Rep 2022; 12:13228. [PMID: 35918382 PMCID: PMC9345897 DOI: 10.1038/s41598-022-17593-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Affiliation(s)
- A Tripathi
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Noida-125, Gautam Buddha Nagar, U.P., 201303, India.
| | - M R Ranjan
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Noida-125, Gautam Buddha Nagar, U.P., 201303, India
| | - D K Verma
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, U.P., 221005, India
| | - Y Singh
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, U.P., 221005, India
| | - S K Shukla
- Department of Transport Science and Technology, School of Engineering and Technology, Central University of Jharkhand, Ranchi, Jharkhand, 835222, India
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia, 344090
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia, 344090
| | - P K Mishra
- Department of Chemical Engineering, IIT BHU, Varanasi, U.P., 221005, India
| | - M C Garg
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Noida-125, Gautam Buddha Nagar, U.P., 201303, India
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Tripathi A, Dutta Dubey K. Combined MD and QM/MM Calculations Reveal Allostery‐Driven Promiscuity in Dipeptide Epimerases of Enolase Family. Chem Asian J 2022. [DOI: 10.1002/asia.202200690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ankita Tripathi
- Department of Chemistry, School of Natural Science Shiv Nadar University Delhi-NCR, NH91 Tehsil Dadri Greater Noida, Uttar Pradesh 201314 India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Science Shiv Nadar University Delhi-NCR, NH91 Tehsil Dadri Greater Noida, Uttar Pradesh 201314 India
- Center for Informatics, Department of Chemistry, School of Natural Science Shiv Nadar University Delhi-NCR, NH91 Tehsil Dadri, Greater Noida Uttar Pradesh 201314 India
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Tripathi A, Ranjan MR, Verma DK, Singh Y, Shukla SK, Rajput VD, Minkina T, Mishra PK, Garg MC. ANN-GA based biosorption of As(III) from water through chemo-tailored and iron impregnated fungal biofilter system. Sci Rep 2022; 12:12414. [PMID: 35858932 PMCID: PMC9300712 DOI: 10.1038/s41598-022-14802-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 06/13/2022] [Indexed: 11/22/2022] Open
Abstract
The iron impregnated fungal bio-filter (IIFB) discs of luffa sponge containing Phanerochaete chrysosporium mycelia have been used for the removal of As(III) from water. Two different forms of same biomass viz. free fungal biomass (FFB) and modified free fungal biomass (chemically modified and iron impregnated; CFB and IIFB) have been simultaneously investigated to compare the performance of immobilization, chemo-tailoring and iron impregnation for remediation of As(III). IIFB showed highest uptake capacity and percentage removal of As(III), 1.32 mg/g and 92.4% respectively among FFB, CFB and IIFB. Further, the application of RSM and ANN-GA based mathematical model showed a substantial increase in removal i.e. 99.2% of As(III) was filtered out from water at optimised conditions i.e. biomass dose 0.72 g/L, pH 7.31, temperature 42 °C, and initial As(III) concentration 1.1 mg/L. Isotherm, kinetic and thermodynamic studies proved that the process followed monolayer sorption pattern in spontaneous and endothermic way through pseudo-second order kinetic pathway. Continuous mode of As(III) removal in IIFB packed bed bioreactor, revealed increased removal of As(III) from 76.40 to 88.23% with increased column height from 5 to 25 cm whereas the removal decreased from 88.23 to 69.45% while increasing flow rate from 1.66 to 8.30 mL/min. Moreover, the IIFB discs was regenerated by using 10% NaOH as eluting agent and evaluated for As(III) removal for four sorption–desorption cycles, showing slight decrease of their efficiency by 1–2%. SEM–EDX, pHzpc, and FTIR analysis, revealed the involvement of hydroxyl and amino surface groups following a non-electrostatic legend exchange sorption mechanism during removal of As(III).
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Affiliation(s)
- A Tripathi
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Noida-125, Gautam Buddha Nagar, U.P., 201303, India.
| | - M R Ranjan
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Noida-125, Gautam Buddha Nagar, U.P., 201303, India
| | - D K Verma
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, U.P., 221005, India
| | - Y Singh
- School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, U.P., 221005, India
| | - S K Shukla
- Department of Transport Science and Technology, School of Engineering and Technology, Central University of Jharkhand, Ranchi, Jharkhand, 835222, India
| | - Vishnu D Rajput
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia, 344090
| | - Tatiana Minkina
- Academy of Biology and Biotechnology, Southern Federal University, Rostov-on-Don, Russia, 344090
| | - P K Mishra
- Department of Chemical Engineering, IIT BHU, Varanasi, U.P., 221005, India
| | - M C Garg
- Amity Institute of Environmental Sciences, Amity University Uttar Pradesh, Noida-125, Gautam Buddha Nagar, U.P., 201303, India
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Tripathi A, Dutta Dubey K. Combined MD and QM/MM Calculations Reveal Allostery-Driven Promiscuity in Dipeptide Epimerases of Enolase Family. Chem Asian J 2022; 17:e202200528. [PMID: 35722826 DOI: 10.1002/asia.202200528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/19/2022] [Indexed: 11/10/2022]
Abstract
The adaptability of the active site to amplify the secondary function is supposed to be the fundamental cause of the promiscuity and the evolution of new functions in enzymes. In most cases, mutations occur close to the active site and/or in the catalytic site to change the active site plasticity to accommodate the non-native substrate. In the present study, using MD simulations and hybrid QM/MM calculations, we have shown a way to enhance the promiscuity, i. e., the allostery-driven promiscuity. Using a case study of the AEE enzyme where the capping loop recognizes the substrate, herein, we show that a single site mutation (D321G) far from the capping loop can induce a large conformational change in the capping loop to recognize different substrates for different functions. The QM/MM calculations for the WT and mutated enzyme provide a first validation of the mechanism of 1,1-proton transfer and dehydration by the AEE enzyme. Since AEE epimerase possesses a highly conserved TIM-barrel fold, we believe that our study provides a crucial lead to understanding the mechanism of emergence of secondary function which can be useful to repurpose ancient enzymes for modern usage.
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Affiliation(s)
- Ankita Tripathi
- Department of Chemistry, School of Natural Science, Shiv Nadar University Delhi-NCR, NH91 Tehsil Dadri, Greater Noida, Uttar Pradesh, 201314, India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Science, Shiv Nadar University Delhi-NCR, NH91 Tehsil Dadri, Greater Noida, Uttar Pradesh, 201314, India.,Center for Informatics, Department of Chemistry, School of Natural Science, Shiv Nadar University Delhi-NCR, NH91 Tehsil Dadri, Greater Noida, Uttar Pradesh, 201314, India
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Shrestha R, Khadka SK, Basi A, Malla M, Thapa S, Tripathi A, Shrestha R. Meniscal Tear at Knee: Repair or Resect? An Early Experience from a University Hospital in Nepal. Kathmandu Univ Med J (KUMJ) 2022; 20:47-50. [PMID: 36273290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Background The meniscus plays an important role in maintaining healthy articular cartilage. Meniscus tear, one of the common intra-articular knee lesions, is treated by either debridement or repair. Objective This study aims at identifying the early outcome of meniscus tears treated by debridement or repair. This study also elaborates on the spectrum of meniscal injuries presented in a tertiary care hospital in Nepal. Method A retrospective descriptive cross-sectional study was conducted at Orthopedic Department of Dhulikhel Hospital from February 2018 until January 2020 among patients who underwent knee arthroscopies for meniscal tears treated either by debridement or repair. Patients having intra articular fractures, osteochondral injuries and multi-ligament injuries were excluded. The meniscal tears were classified according to location and type of tear. Those patients who had at least one-year of follow up were evaluated with Lysholm score for functional outcome. Data were compiled and analyzed with Microsoft Excel 2011. Result One hundred and ten cases of meniscal tears were managed over the study period. Ninty-three cases could be traced for outcome evaluation, which included 50 cases of meniscal debridement and 43 cases of meniscal repair. The mean Lysholm score of the patients who received debridement was 81.5 (SD 10.4) and those who received meniscal repair was 84.9 (SD 9.1) (p=0.105). The population distribution was found to be similar in both the groups according to age and sex distribution and associated ligamentous injuries. Conclusion Good functional outcome was seen for meniscal tears managed with debridement or repair in at least one year follow up and could not establish one modality of management better than the other.
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Affiliation(s)
- R Shrestha
- Department of Orthopedics and Traumatology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S K Khadka
- Department of Orthopedics and Traumatology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - A Basi
- Department of Orthopedics and Traumatology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - M Malla
- Department of Orthopedics and Traumatology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - S Thapa
- Department of Orthopedics and Traumatology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - A Tripathi
- Department of Orthopedics and Traumatology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
| | - R Shrestha
- Department of Orthopedics and Traumatology, Dhulikhel Hospital, Kathmandu University Hospital, Kathmandu University School of Medical Sciences, Dhulikhel, Kavre, Nepal
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Sandra N, Tripathi A, Lal SK, Mandal B, Jain RK. Molecular and biological characterization of soybean yellow mottle mosaic virus severe strain infecting soybean in India. 3 Biotech 2021; 11:381. [PMID: 34458057 DOI: 10.1007/s13205-021-02925-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 07/13/2021] [Indexed: 11/26/2022] Open
Abstract
The complete nucleotide sequence and genome organization of soybean yellow mottle mosaic virus severe strain causing bright yellow mosaic, mottling and puckering symptoms in soybean (Glycine max) from India was determined. The monopartite single stranded genomic RNA is 3974 nuclotides long and has the potential to encode six viral proteins viz., p25, p83, p8, p10, p39 and p25. The SYMMV-Sb isolate differed from mungbean strain with 69 nucleotides and nine aminoacids dispersed over the various ORFs. Comparative sequence analysis revealed that SYMMV-Sb shared 98% nt sequence identity at complete genome level and 96-100% at all ORFs level with SYMMV mungbean strain from India and 71-92% identity with SYMMV Korean soybean isolate, whereas it showed very low sequence identity with other tombusviridae members (2-53%). The phylogenetic analysis showed the clustering of SYMMV-Sb along with other members of genus Gammacarmovirus. The SYMMV-Sb isolate produced chlorotic blotches, mild and veinal mottling, necrosis and puckering symptoms in various leguminous host plants. The symptomatalogy of the soybean isolate was differed from mungbean strain as earlier induced severe symptoms on soybean and mild symptoms on mungbean. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s13205-021-02925-2.
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Affiliation(s)
- Nagamani Sandra
- Division of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | - Ankita Tripathi
- Division of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | - S K Lal
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | - Bikash Mandal
- Advanced Centre for Plant Virology, Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
| | - Rakesh Kumar Jain
- Advanced Centre for Plant Virology, Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012 India
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Misra UK, Kalita J, Kumar M, Tripathi A, Mishra P. Complications of tuberculous meningitis and their effect on outcome in a tertiary care cohort. Int J Tuberc Lung Dis 2021; 24:1194-1199. [PMID: 33172527 DOI: 10.5588/ijtld.20.0036] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: To report the frequency and severity of complications, and their effect on the outcome of tuberculous meningitis (TBM).METHODS: In this retrospective cohort study, the following TBM complications were observed: status epilepticus (SE), hydrocephalus, paradoxical clinical worsening (PCW), hyponatremia, drug-induced hepatitis (DIH), infarction and mechanical ventilation (MV). These were recorded and correlated with stage of meningitis and outcome.RESULTS: A total of 144 patients with TBM (median age 26 years, range 12-75) were included. There were 76 (52.8%) females. The patients were in Stage I (n = 33), Stage II (n = 82) and Stage III (n = 29); 58 had definite TBM. Complications occurred in 128 (88.9%); complications included hydrocephalus (n = 58, 40.3%), hyponatremia (n = 70, 48.6%), infarction (n = 48, 33.3%), DIH (n = 42, 29.2%), SE (n = 16, 18.0%), MV (n = 43, 29.9%) and PCW (n = 24, 16.7%), with variable overlap. By 6 months, 33 patients had died. Death was related to PCW (P = 0.016), hyponatremia (P = 0.03), MV (P = 0.02), infarction (P = 0.03) and the number of complications. Except PCW, most complications occurred during the first month.CONCLUSIONS: In TBM, complications occurred in 128 (88.9%) patients, mainly in the early stages, with variable overlap. Infarction, PCW, hyponatremia and MV were predictive of poor outcome.
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Affiliation(s)
- U K Misra
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, Vivekanand Poly Clinic and Institute of Medical Sciences, Lucknow
| | - J Kalita
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow
| | - M Kumar
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow, All India Institute of Medical Sciences, Rishikesh
| | - A Tripathi
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences (SGPGIMS), Lucknow
| | - P Mishra
- Department of Biostatistics & Health Informatics, SGPGIMS, Lucknow, India
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Sharma M, Prajapati S, Kumar A, Tripathi A, Godlaveti VNK, Gupta P. Effect of Acute Exposure of Belladonna Mother Tincture on Zebrafish Embryonic Development. Indian J Pharm Sci 2021. [DOI: 10.36468/pharmaceutical-sciences.847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Shevtsov DS, Shikhaliev KS, Komarova ES, Kruzhilin AA, Kipriyanova GO, Potapov AY, Zartsyn ID, Kozaderov OA, Prabhakar C, Tripathi A. Inhibition of Copper Corrosion with N-Arylaminotriazoles in Aqueous Chloride Solutions and in Air. RUSS J APPL CHEM+ 2020. [DOI: 10.1134/s1070427220080078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Dhara L, Tripathi A. The use of eugenol in combination with cefotaxime and ciprofloxacin to combat ESBL-producing quinolone-resistant pathogenic Enterobacteriaceae. J Appl Microbiol 2020; 129:1566-1576. [PMID: 32502298 DOI: 10.1111/jam.14737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 05/05/2020] [Accepted: 05/19/2020] [Indexed: 11/29/2022]
Abstract
AIM Emergence of extended-spectrum beta-lactamase (ESBL) producing with quinolone-resistant (QR) pathogenic Enterobacteriaceae augmented the need to establish therapeutic options against them. Present study aimed towards determination of synergistic combination of eugenol (EG) with cefotaxime (CTX) and ciprofloxacin (CIP) to combat against this resistance and potentiation of antibacterial drugs by EG against these bacteria. METHODS AND RESULTS Synergistic interaction between EG and CTX/CIP (FICI: 0·08-0·5) were observed among ESBL-QR bacteria using checkerboard assay. Approximately, 2- to 1024-fold minimum inhibitory concentration value reduction and 17- to 165 030-fold dose reduction index strongly suggested synergistic interaction between EG and antibiotics. Cell viability assay showed reduction in log10 CFU per ml from 16·6 to 3·1 at synergistic concentration. Scanning electron microscopy further proved disruptive effect of EG on cell architecture. Eugenol and/or its combination also altered genes' expressions that imparted antibiotic resistance by ~1·6 to ~1226 folds. CONCLUSIONS Reduced doses of antibiotics, bacterial morphological alterations, efflux pump down regulation, porin over expression and beta-lactamase gene inhibition of ESBL-QR bacteria by EG alone or in combination with CTX/CIP might have reversed antibiotic resistance profile of ESBL-QR bacteria. SIGNIFICANCE AND IMPACT OF THE STUDY This study provided a molecular insight into action of EG and/with CTX and CIP, which might have potentiated antibiotic's activity against ESBL-QR bacteria.
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Affiliation(s)
- L Dhara
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, India
| | - A Tripathi
- Department of Biochemistry and Medical Biotechnology, Calcutta School of Tropical Medicine, Kolkata, India
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Abstract
A mild strategy for consecutive diazenylation and amination of indole moieties has been demonstrated. The functionalization occurs at C3 and C2 carbon atoms, respectively, at the indole scaffold in the presence of catalytic iodine and air at 40 °C in the 1,1,1,3,3,3-hexafluoroisopropanol (HFIP) solvent. It is noteworthy that the aromatic amines are generated in situ by the reaction of aryl hydrazine with iodine. In general, bright red products are obtained in moderate to good yield. Control reactions are conducted to establish the reaction mechanism.
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Affiliation(s)
- Saibal Sar
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, Greater Noida, Gautam Budh Nagar, UP 201314, India
| | - Ankita Tripathi
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, Greater Noida, Gautam Budh Nagar, UP 201314, India
| | - Kshatresh Dutta Dubey
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, Greater Noida, Gautam Budh Nagar, UP 201314, India
| | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, Greater Noida, Gautam Budh Nagar, UP 201314, India
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Sandra N, Tripathi A, Dikshit HK, Mandal B, Jain RK. Seed transmission of a distinct soybean yellow mottle mosaic virus strain identified from India in natural and experimental hosts. Virus Res 2020; 280:197903. [PMID: 32105764 DOI: 10.1016/j.virusres.2020.197903] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/20/2020] [Accepted: 02/23/2020] [Indexed: 10/24/2022]
Abstract
Soybean yellow mottle mosaic virus (SYMMV) is a newly identified member of the genus Gammacarmovirus from grain legumes in India. As the modes of transmission of this virus have not been described, we assessed the possibility of SYMMV to be transmitted through seed collected from field infected mungbean plants and mechanically sap inoculated French bean plants using serological and molecular techniques followed by progeny assays. Direct antigen coated enzyme linked immunosorbent assay (DAC-ELISA) and reverse transcription polymerase chain reaction (RT-PCR) results are inconsistent with field infected mungbean seed tissues to ensure seed transmissibility irrespective of seed number used. Seed from mechanical sap inoculated French bean showed higher absorbance values in DAC-ELISA and amplification corresponding to replicase, movement and coat protein regions of SYMMV genome. The relative accumulation of SYMMV was higher in pod walls, immature seed and stamens and stigma of mechanical sap inoculated French bean. Progeny assays with infected seed revealed the seed transmissibility of SYMMV at the rate of 63.33% in mungbeanand 73.33% in French bean. Mechanical sap inoculation of mungbean progeny seedlings on French bean cv. Pusa Parvati produced characteristic symptoms of SYMMV. The results obtained from this study demonstrate that SYMMV is seed borne in nature and can be transmitted to next generation seedlings. This is the first report of seed transmission of SYMMV in mungbean and French bean.
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Affiliation(s)
- Nagamani Sandra
- Division of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, New Delhi, India.
| | - Ankita Tripathi
- Division of Seed Science and Technology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - H K Dikshit
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Bikash Mandal
- Advanced Centre for Plant Virology, Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - R K Jain
- Advanced Centre for Plant Virology, Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, India
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Sudha MR, Ahire J, Jayanthi N, Tripathi A, Nanal S. Effect of multi-strain probiotic (UB0316) in weight management in overweight/obese adults: a 12-week double blind, randomised, placebo-controlled study. Benef Microbes 2019; 10:855-866. [DOI: 10.3920/bm2019.0052] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This clinical trial was carried out to assess the effects of multi-strain probiotic capsule (UB0316: Lactobacillus salivarius UBLS-22, Lactobacillus casei UBLC-42, Lactobacillus plantarum, UBLP-40, Lactobacillus acidophilus UBLA-34, Bifidobacterium breve UBBr-01, Bacillus coagulans Unique IS2 5×109 cfu each and fructo-oligosaccharide, 100 mg) on overweight/obesity-related parameters. Ninety subjects (age, 30-65 years; body mass index (BMI), 25-32 kg/m2) were randomised into two groups, i.e. UB0316 (probiotic) and placebo (excipient maltodextrin). They were instructed to take 2 capsules (UB0316 or placebo) per day after meals for 12 weeks. Primary (BMI), and secondary (waist-to-hip ratio: WHR; body weight, body fat; sugar and lipid profile) endpoint measures were evaluated at scheduled visits. Vital signs, physical investigations, quality of life, physician/subjects global assessment and adverse events were also recorded. A total of 71 subjects completed the scheduled study visits and analysis thereof showed that a 12-week UB0316 supplementation significantly reduced BMI (95% CI: -0.64, -0.27; P=0.0001), body weight (95% CI: -1.16, -0.50; P<0.0001), and WHR (95% CI: -0.06, -0.01; P=0.007) from the baseline, compared to placebo. Fat, blood lipid and sugar profile changes were non-significant. UB0316 significantly improved quality of life of overweight/obese individuals. Furthermore, no severe adverse events or abnormal findings were noted during vital, blood and physical examinations. In conclusion, this 12-week trial demonstrates that UB0316 is effective in reducing BMI, body weight and WHR in overweight/obese adults.
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Affiliation(s)
- M. Ratna Sudha
- Centre for Research & Development, Unique Biotech Ltd., Plot No. 2, Phase-II, Alexandria Knowledge Park, Hyderabad, Telangana 500078, India
| | - J.J. Ahire
- Centre for Research & Development, Unique Biotech Ltd., Plot No. 2, Phase-II, Alexandria Knowledge Park, Hyderabad, Telangana 500078, India
| | - N. Jayanthi
- Centre for Research & Development, Unique Biotech Ltd., Plot No. 2, Phase-II, Alexandria Knowledge Park, Hyderabad, Telangana 500078, India
| | - A. Tripathi
- Life Veda Treatment and Research Centre, Worli, Mumbai 400030, India
| | - S. Nanal
- Nanal Clinic, Anand Bhuvan, Gore wadi, Mahim (W), Mumbai 400016, India
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Schneider L, Cui F, Brodsky A, Fraser M, Toloue M, Tripathi A. 14. A FULLY AUTOMATED INSTRUMENT FOR PREIMPLANTATION GENETIC TESTING (PGT-A) LIBRARY PREPARATION. Reprod Biomed Online 2019. [DOI: 10.1016/j.rbmo.2019.04.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Pal A, Tripathi A. Quercetin potentiates meropenem activity among pathogenic carbapenem‐resistantPseudomonas aeruginosaandAcinetobacter baumannii. J Appl Microbiol 2019; 127:1038-1047. [DOI: 10.1111/jam.14388] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 06/20/2019] [Accepted: 07/10/2019] [Indexed: 12/29/2022]
Affiliation(s)
- A. Pal
- Department of Biochemistry and Medical Biotechnology Calcutta School of Tropical Medicine Kolkata India
| | - A. Tripathi
- Department of Biochemistry and Medical Biotechnology Calcutta School of Tropical Medicine Kolkata India
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Misra UK, Kalita J, Kumar M, Tripathi A. A study of atrial and brain natriuretic peptides in tuberculous meningitis and acute encephalitis. Int J Tuberc Lung Dis 2019; 22:452-457. [PMID: 29562995 DOI: 10.5588/ijtld.17.0479] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To report atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) levels in patients with tuberculous meningitis (TBM) and acute encephalitis syndrome (AES), and evaluate their relationship with hyponatraemia. METHODS Consecutive patients with TBM and AES were included in the study. Hyponatraemia was categorised as cerebral salt wasting (CSW), syndrome of inappropriate secretion of antidiuretic hormone (SIADH) and a miscellaneous group based on clinical and laboratory criteria. Serum ANP and BNP levels were measured upon hospital admission, at the time of diagnosis of hyponatraemia and upon correction of hyponatraemia. Outcome at 3 months was assessed using the modified Rankin scale (mRS) as good (mRS 2) and poor (mRS >2). RESULTS There were 67 patients with TBM and 77 with AES. Hyponatraemia was more common in TBM than in AES (65.7% vs. 27%, P < 0.01). Forty-one (63.1%) patients had CSW, 6 (9.2%) SIADH and 18 (27.7%) had miscellaneous causes of hyponatraemia. During hyponatraemia, ANP (180 ± 45 vs. 106 ± 32 pg/ml, P < 0.01) and BNP (263 ± 118 vs. 163 ± 91 pg/ml, P 0.01) levels were significantly increased compared with baseline, and remained high even after Na+ correction. CONCLUSION ANP and BNP levels were increased during hyponatraemia and remained high even after correction of hyponatraemia in TBM and AES, especially in patients with CSW. However, ANP and BNP levels could not be used to differentiate CSW from SIADH.
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Affiliation(s)
- U K Misra
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - J Kalita
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - M Kumar
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - A Tripathi
- Department of Neurology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
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Tripathi A, Wangchu L, Trivedi AK. Prevalence and Intensity of Cornudiscoides Agarwali (Monogenoidea) on the Gills of Day's Mystus ( Mystus Bleekeri) in Relation to Some Ecological and Biological Factors from Arunachal Pradesh, India. Helminthologia 2019; 56:141-150. [PMID: 31662685 PMCID: PMC6799562 DOI: 10.2478/helm-2019-0005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 01/28/2019] [Indexed: 11/20/2022] Open
Abstract
This work investigated the relationship of host size, seasons, and water quality parameters with the prevalence and intensity of Cornudiscoides agarwali on Mystus bleekeri collected from the Dikrong River in Arunachal Pradesh, India from February 2016 to January 2017. A total of 2760 specimens of C. agarwali were recovered from 114 individuals of M. bleekeri. The levels of mean intensity, but not the prevalence, of infection of C. agarwali were positively correlated with fish host size, peaking in the largest size class (45.20 ± 5.69 parasites/fi sh). The prevalence values had a statistically significant seasonal trend, reaching highest (100 %) during the pre-monsoon season, followed by 91.8% during the post-monsoon period and 87.5 % during the monsoon season. The levels of mean intensity of infection were also dependent on the seasons, reaching significantly higher levels during the pre-monsoon season (42.75 ± 4.18 parasites/fi sh). All water quality parameters measured were within the safety value recommended for freshwater aquaculture. Cornudiscoides agarwali maintained its prevalence above 87.5 % throughout the annual cycle, which means it was able to reproduce year-round in a non-polluted river. This could be an indication of monogenoidean community and population dynamics thriving best under optimum water quality parameters. Also, this article draws the attention of parasitologists and ichthyologists to a taxonomic problem of the misidentification of Mystus spp., and therefore, possibly of their parasitic monogenoids.
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Affiliation(s)
- A. Tripathi
- Department of Zoology, University of Lucknow, Lucknow-226 007 India
| | - L. Wangchu
- Department of Zoology, Rajiv Gandhi University, Arunachal Pradesh-791 112, India
| | - A. K. Trivedi
- Department of Zoology, Mizoram University, Mizoram- 796 004, India
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Pascucci M, Ganesan S, Tripathi A, Katz O, Emiliani V, Guillon M. Compressive three-dimensional super-resolution microscopy with speckle-saturated fluorescence excitation. Nat Commun 2019; 10:1327. [PMID: 30902978 PMCID: PMC6430798 DOI: 10.1038/s41467-019-09297-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 02/19/2019] [Indexed: 11/09/2022] Open
Abstract
Nonlinear structured illumination microscopy (nSIM) is an effective approach for super-resolution wide-field fluorescence microscopy with a theoretically unlimited resolution. In nSIM, carefully designed, highly-contrasted illumination patterns are combined with the saturation of an optical transition to enable sub-diffraction imaging. While the technique proved useful for two-dimensional imaging, extending it to three-dimensions is challenging due to the fading of organic fluorophores under intense cycling conditions. Here, we present a compressed sensing approach that allows 3D sub-diffraction nSIM of cultured cells by saturating fluorescence excitation. Exploiting the natural orthogonality of speckles at different axial planes, 3D probing of the sample is achieved by a single two-dimensional scan. Fluorescence contrast under saturated excitation is ensured by the inherent high density of intensity minima associated with optical vortices in polarized speckle patterns. Compressed speckle microscopy is thus a simple approach that enables 3D super-resolved nSIM imaging with potentially considerably reduced acquisition time and photobleaching.
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Affiliation(s)
- M Pascucci
- Neurophotonics Laboratory UMR8250, University Paris Descartes, 47 rue des Saints-Pères, 75270, Paris, France
| | - S Ganesan
- Neurophotonics Laboratory UMR8250, University Paris Descartes, 47 rue des Saints-Pères, 75270, Paris, France
| | - A Tripathi
- Department of Applied Physics, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel.,Department of Physics, Indian Institute of Technology, Delhi, 110016, India
| | - O Katz
- Department of Applied Physics, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - V Emiliani
- Neurophotonics Laboratory UMR8250, University Paris Descartes, 47 rue des Saints-Pères, 75270, Paris, France
| | - M Guillon
- Neurophotonics Laboratory UMR8250, University Paris Descartes, 47 rue des Saints-Pères, 75270, Paris, France.
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Tripathi A, Melo JS. Self-assembled biogenic melanin modulated surface chemistry of biopolymers-colloidal silica composite porous matrix for the recovery of uranium. J Appl Polym Sci 2018. [DOI: 10.1002/app.46937] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- A. Tripathi
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre; Mumbai 400085 India
| | - J. S. Melo
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre; Mumbai 400085 India
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Tripathi A, Kumar R, Sahoo G, Vyas A, Kumar H, Kumar M, Das P. In vitro and in vivo antileishmanial activity of parthenin a sesquiterpene lactone obtained from Parthenium hysterophorous. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.4103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Affiliation(s)
- B. I. Spinrad
- Oregon State University, Nuclear Engineering Department Corvallis, Oregon 97731
| | - A. Tripathi
- Oregon State University, Nuclear Engineering Department Corvallis, Oregon 97731
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Srinivas TR, Taber DJ, Su Z, Zhang J, Mour G, Northrup D, Tripathi A, Marsden JE, Moran WP, Mauldin PD. Big Data, Predictive Analytics, and Quality Improvement in Kidney Transplantation: A Proof of Concept. Am J Transplant 2017; 17:671-681. [PMID: 27804279 DOI: 10.1111/ajt.14099] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 10/24/2016] [Accepted: 10/25/2016] [Indexed: 01/25/2023]
Abstract
We sought proof of concept of a Big Data Solution incorporating longitudinal structured and unstructured patient-level data from electronic health records (EHR) to predict graft loss (GL) and mortality. For a quality improvement initiative, GL and mortality prediction models were constructed using baseline and follow-up data (0-90 days posttransplant; structured and unstructured for 1-year models; data up to 1 year for 3-year models) on adult solitary kidney transplant recipients transplanted during 2007-2015 as follows: Model 1: United Network for Organ Sharing (UNOS) data; Model 2: UNOS & Transplant Database (Tx Database) data; Model 3: UNOS, Tx Database & EHR comorbidity data; and Model 4: UNOS, Tx Database, EHR data, Posttransplant trajectory data, and unstructured data. A 10% 3-year GL rate was observed among 891 patients (2007-2015). Layering of data sources improved model performance; Model 1: area under the curve (AUC), 0.66; (95% confidence interval [CI]: 0.60, 0.72); Model 2: AUC, 0.68; (95% CI: 0.61-0.74); Model 3: AUC, 0.72; (95% CI: 0.66-077); Model 4: AUC, 0.84, (95 % CI: 0.79-0.89). One-year GL (AUC, 0.87; Model 4) and 3-year mortality (AUC, 0.84; Model 4) models performed similarly. A Big Data approach significantly adds efficacy to GL and mortality prediction models and is EHR deployable to optimize outcomes.
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Affiliation(s)
- T R Srinivas
- Division of Nephrology, Medical University of South Carolina, Charleston, SC
| | - D J Taber
- Division of Transplant Surgery, Medical University of South Carolina, Charleston, SC
| | - Z Su
- Division of General Internal Medicine & Geriatrics, Medical University of South Carolina, Charleston, SC
| | - J Zhang
- Division of General Internal Medicine & Geriatrics, Medical University of South Carolina, Charleston, SC
| | - G Mour
- Division of Nephrology, Medical University of South Carolina, Charleston, SC
| | - D Northrup
- Office of the Chief Information Officer, Medical University of South Carolina, Charleston, SC
| | | | - J E Marsden
- Division of General Internal Medicine & Geriatrics, Medical University of South Carolina, Charleston, SC
| | - W P Moran
- Division of General Internal Medicine & Geriatrics, Medical University of South Carolina, Charleston, SC
| | - P D Mauldin
- Division of General Internal Medicine & Geriatrics, Medical University of South Carolina, Charleston, SC
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Uniyal R, Paliwal VK, Tripathi A. Psychiatric comorbidity in new daily persistent headache: A cross-sectional study. Eur J Pain 2017; 21:1031-1038. [PMID: 28146324 DOI: 10.1002/ejp.1000] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2016] [Indexed: 01/03/2023]
Abstract
BACKGROUND New daily persistent headache (NDPH) is a type of chronic daily headache. NDPH can have migrainous (NDPH-CM) or tension-type character (NDPH-CTTH). Recently, NDPH patients have shown to have associated anxiety and depression. We compared anxiety, depressive symptoms, somatization and pain catastrophization among NDPH, healthy controls and patients with chronic low-back pain and between NDPH-CM and NDPH-CTTH. METHODS We assessed the study population for depressive symptoms by Patient Health Questionnaire-9, anxiety by Generalized Anxiety Disorder Scale - 7, somatoform disorder using DSM IV (TR) criteria and pain catastrophizing by using Pain Catastrophizing Scale. RESULTS Fifty-five patients each with NDPH (mean age 28.24 ± 12.05 years, 45.5% females) and age/sex matched healthy individuals and patients with chronic low-back pain were enrolled. Among NDPH patients, somatoform disorder was seen in 32.7%, severe anxiety in 65.5%, severe depressive symptoms in 40%, significant pain catastrophization in 85.5%. NDPH patients had significantly higher frequency of all psychiatric co-morbidities as compared to healthy controls and patients with chronic low-back pain. NDPH-CM patients had significantly higher frequency of depression and pain catastrophizing behaviour as compared to NDPH-CTTH. CONCLUSION Anxiety, depressive symptoms, somatization and pain catastrophizing were significantly more prevalent in NDPH when compared to healthy individuals and patients with chronic low back pain. Such effects should be sought for, as they might contribute to refractoriness to treatment. SIGNIFICANCE Anxiety, depressive symptoms, somatization and pain catastrophizing were significantly more prevalent in new daily persistent headache when compared to healthy individuals and patients with chronic low back pain. Such effects should be sought for, as they might contribute to refractoriness to treatment.
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Affiliation(s)
- R Uniyal
- Department of Neurology, King George Medical University, Lucknow, U.P., India
| | - V K Paliwal
- Department of Neurology, SGPGIMS, Lucknow, U.P., India
| | - A Tripathi
- Department of Psychiatry, King George Medical University, Lucknow, U.P., India
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Guicheteau JA, Tripathi A, Emmons ED, Christesen SD, Fountain A. Reassessing SERS enhancement factors: using thermodynamics to drive substrate design. Faraday Discuss 2017; 205:547-560. [DOI: 10.1039/c7fd00141j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Over the past 40 years fundamental and application research into Surface-Enhanced Raman Scattering (SERS) has been explored by academia, industry, and government laboratories. To date however, SERS has achieved little commercial success as an analytical technique. Researchers are tackling a variety of paths to help break through the commercial barrier by addressing the reproducibility in both the SERS substrates and SERS signals as well as continuing to explore the underlying mechanisms. To this end, investigators use a variety of methodologies, typically studying strongly binding analytes such as aromatic thiols and azarenes, and report SERS enhancement factor calculations. However a drawback of the traditional SERS enhancement factor calculation is that it does not yield enough information to understand substrate reproducibility, application potential with another analyte, or the driving factors behind the molecule–metal interaction. Our work at the US Army Edgewood Chemical Biological Center has focused on these questions and we have shown that thermodynamic principles play a key role in the SERS response and are an essential factor in future designs of substrates and applications. This work will discuss the advantages and disadvantages of various experimental techniques used to report SERS enhancement with planar SERS substrates and present our alternative SERS enhancement value. We will report on three types of analysis scenarios that all yield different information concerning the effectiveness of the SERS substrate, practical application of the substrate, and finally the thermodynamic properties of the substrate. We believe that through this work a greater understanding for designing substrates will be achieved, one that is based on both thermodynamic and plasmonic properties as opposed to just plasmonic properties. This new understanding and potential change in substrate design will enable more applications for SERS based methodologies including targeting molecules that are traditionally not easily detected with SERS due to the perceived weak molecule–metal interaction of substrates.
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Affiliation(s)
- J. A. Guicheteau
- USA RDECOM Edgewood Chemical Biological Center
- Aberdeen Proving Ground
- USA
| | - A. Tripathi
- USA RDECOM Edgewood Chemical Biological Center
- Aberdeen Proving Ground
- USA
| | - E. D. Emmons
- USA RDECOM Edgewood Chemical Biological Center
- Aberdeen Proving Ground
- USA
| | - S. D. Christesen
- USA RDECOM Edgewood Chemical Biological Center
- Aberdeen Proving Ground
- USA
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Tripathi A, Kabra SK, Sachdev HPS, Lodha R. Home visits by community health workers to improve identification of serious illness and care seeking in newborns and young infants from low- and middle-income countries. J Perinatol 2016; 36 Suppl 1:S74-82. [PMID: 27109094 PMCID: PMC4848742 DOI: 10.1038/jp.2016.34] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Accepted: 11/24/2015] [Indexed: 11/20/2022]
Abstract
The objectives of this review were to evaluate the effect of home visits by trained community health workers (CHWs) to successfully identify newborns and young infants (up to 59 days of age) with serious illness and improve care seeking from a health facility. The authors searched the Cochrane Central Register of Controlled Trials, MEDLINE and EMBASE. Abstracts of all articles were read by two authors independently and relevant articles selected. Data were extracted in a pretested questionnaire by two authors independently. Statistical analysis was performed using Review Manager software. A meta-analysis of included randomized controlled trials (RCTs) was carried out. Pooled estimates (risk ratios (RRs) with 95% confidence intervals (CIs)) of the evaluated outcome measures were calculated by the generic inverse variance method. Seven articles were identified for inclusion in the review. None of them compared the diagnosis of serious illness in young infants by health workers to a 'gold standard' diagnosis. Three studies were available for evaluating the ability of CHWs to identify seriously ill young infants/signs of serious illness. These studies suggest that sensitivity to identify serious illness ranged from 33.3 to 90.5% and specificity from 75.61 to 98.4%. For the outcome of improved care seeking from a health facility, after pooling the data from six RCTs with 4760 subjects in the intervention and 4398 subjects in the control arm, there was a significant improvement in care seeking in the home visit arm (RR=1.35; 95% CI=1.15 to 1.58). Moderate quality evidence indicated that home visits by trained CHWs were associated with improved care-seeking for sick young infants from health facilities by appropriate health care providers in resource-limited settings. However, there is a lack of data regarding successful identification of serious illness. Evidence from validation studies supports the implementation of home visits by trained CHWs for improving outcomes in sick newborns and young infants in resource-limited areas. Further well-designed studies evaluating the effect of home visits by CHWs on successful identification of seriously ill newborns and young infants should include verification by a 'gold standard'.
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Affiliation(s)
- A Tripathi
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - S K Kabra
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - H P S Sachdev
- Sitaram Bhartia Institute of Science and Research, New Delhi, India
| | - R Lodha
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
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D'Alessio FR, Craig JM, Singer BD, Files DC, Mock JR, Garibaldi BT, Fallica J, Tripathi A, Mandke P, Gans JH, Limjunyawong N, Sidhaye VK, Heller NM, Mitzner W, King LS, Aggarwal NR. Enhanced resolution of experimental ARDS through IL-4-mediated lung macrophage reprogramming. Am J Physiol Lung Cell Mol Physiol 2016; 310:L733-46. [PMID: 26895644 PMCID: PMC4836113 DOI: 10.1152/ajplung.00419.2015] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 02/12/2016] [Indexed: 01/11/2023] Open
Abstract
Despite intense investigation, acute respiratory distress syndrome (ARDS) remains an enormous clinical problem for which no specific therapies currently exist. In this study, we used intratracheal lipopolysaccharide or Pseudomonas bacteria administration to model experimental acute lung injury (ALI) and to further understand mediators of the resolution phase of ARDS. Recent work demonstrates macrophages transition from a predominant proinflammatory M1 phenotype during acute inflammation to an anti-inflammatory M2 phenotype with ALI resolution. We tested the hypothesis that IL-4, a potent inducer of M2-specific protein expression, would accelerate ALI resolution and lung repair through reprogramming of endogenous inflammatory macrophages. In fact, IL-4 treatment was found to offer dramatic benefits following delayed administration to mice subjected to experimental ALI, including increased survival, accelerated resolution of lung injury, and improved lung function. Expression of the M2 proteins Arg1, FIZZ1, and Ym1 was increased in lung tissues following IL-4 treatment, and among macrophages, FIZZ1 was most prominently upregulated in the interstitial subpopulation. A similar trend was observed for the expression of macrophage mannose receptor (MMR) and Dectin-1 on the surface of alveolar macrophages following IL-4 administration. Macrophage depletion or STAT6 deficiency abrogated the therapeutic effect of IL-4. Collectively, these data demonstrate that IL-4-mediated therapeutic macrophage reprogramming can accelerate resolution and lung repair despite delayed use following experimental ALI. IL-4 or other therapies that target late-phase, proresolution pathways may hold promise for the treatment of human ARDS.
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Affiliation(s)
- F R D'Alessio
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - J M Craig
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - B D Singer
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - D C Files
- Division of Pulmonary and Critical Care, Wake Forest University School of Medicine, Winston-Salem, North Carolina; and
| | - J R Mock
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - B T Garibaldi
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - J Fallica
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - A Tripathi
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - P Mandke
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - J H Gans
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - N Limjunyawong
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - V K Sidhaye
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - N M Heller
- Department of Anesthesiology and Critical Care, Johns Hopkins University, Baltimore, Maryland
| | - W Mitzner
- Department of Environmental Health Sciences, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - L S King
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - N R Aggarwal
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland;
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Chee KY, Tripathi A, Avasthi A, Chong MY, Xiang YT, Sim K, Kanba S, He YL, Lee MS, Chiu HFK, Yang SY, Kuga H, Udomratn P, Tanra AJ, Maramis MM, Grover S, Mahendran R, Kallivayalil RA, Shen WW, Shinfuku N, Tan CH, Sartorius N. Prescribing Pattern of Antidepressants in Children and Adolescents: Findings from the Research on Asia Psychotropic Prescription Pattern. East Asian Arch Psychiatry 2016; 26:10-17. [PMID: 27086755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE Pharmacotherapy of depression in children and adolescents is complex. In the absence of research into the efficacy and safety of antidepressants in this group of patients, their off-label prescription is common. This paper aimed to illustrate the prescription pattern of antidepressants in children and adolescents from major psychiatric centres in Asia. METHODS The Research on Asia Psychotropic Prescription Pattern on Antidepressants worked collaboratively in 2013 to study the prescription pattern of antidepressants in Asia using a unified research protocol and questionnaire. Forty psychiatric centres from 10 Asian countries / regions participated and 2321 antidepressant prescriptions were analysed. RESULTS A total of 4.7% antidepressant prescriptions were for children and adolescents. Fluoxetine, sertraline, and escitalopram were the most common antidepressants prescribed for children and adolescents. Almost one-third (30.3%) of prescriptions were for diagnoses other than depressive and anxiety disorders. There was less antidepressant polypharmacy and concomitant use of benzodiazepine, but more concomitant use of antipsychotics in children and adolescents compared with adults. CONCLUSION Off-label use of antidepressants in children and adolescents was reported by 40 Asian psychiatric institutions that participated in the study. In-service education and regulatory mechanisms should be reinforced to ensure efficacy and safety of antidepressants in children and adolescents.
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Affiliation(s)
- K Y Chee
- Department of Psychiatry & Mental Health, Kuala Lumpur Hospital, Kuala Lumpur, Malaysia
| | - A Tripathi
- Department of Psychiatry, King George's Medical University, Chowk, Lucknow, India
| | - A Avasthi
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - M Y Chong
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital-Kaohsiung Medical Center and School of Medicine, Chang Gung University, Taiwan
| | - Y T Xiang
- Faculty of Health Sciences, University of Macao, Macao SAR, PR China
| | - K Sim
- Institute of Mental Health, Buangkok View, Buangkok Green Medical Park, Singapore
| | - S Kanba
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Y L He
- Department of Psychiatric Epidemiology, Shanghai Mental Health Center, Shanghai, PR China
| | - M S Lee
- Department of Psychiatry, College of Medicine, Korea University, Seoul, South Korea
| | - H F K Chiu
- Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong, PR China
| | - S Y Yang
- Department of Pharmacy, Taipei City Hospital, Taipei, Taiwan
| | - H Kuga
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - P Udomratn
- Department of Psychiatry, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - A J Tanra
- Department of Psychiatry, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - M M Maramis
- Dr Soetomo Hospital-Faculty of Medicine, Airlangga University, Jawa Timur, Indonesia
| | - S Grover
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - R Mahendran
- Department of Psychological Medicine, National University Hospital, Singapore
| | - R A Kallivayalil
- Department of Psychiatry, Pushpagiri Medical College, Thiruvalla, India
| | - W W Shen
- Department of Psychiatry, TMU-Wan Fang Medical Center and School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - N Shinfuku
- Department of Psychiatry, Kobe University, Kobe, Japan
| | - C H Tan
- Department of Pharmacology, National University of Singapore, Singapore
| | - N Sartorius
- Association for the Improvement of Mental Health Programmes, Geneva, Switzerland
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Mongia S, Tripathi A, Mengual E. Arborization patterns of amygdalopetal axons from the rat ventral pallidum. Brain Struct Funct 2016; 221:4549-4573. [PMID: 26832919 DOI: 10.1007/s00429-016-1184-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 01/07/2016] [Indexed: 10/22/2022]
Abstract
We previously analyzed the arborization patterns of rat ventral pallidal (VP) axons that coursed caudally to innervate the thalamus and brainstem (Tripathi et al. in Brain Struct Funct 218:1133-1157, 2013). Here, we have reconstructed 16 previously undetected axons from the same tracer deposits that follow a more lateral trajectory. Virtually all 16 axons emanating from the different VP compartments collateralized in the extended amygdala system (EAS) and amygdaloid complex. The most frequent targets of axons from the lateral and medial (VPm) VP compartments were the rostral sublenticular extended amygdala, the extended amygdala (EA), the central nucleus of the amygdala and the posterior part of the basolateral amygdaloid nucleus. In contrast, axons from the rostral extension of the VP preferentially innervated the anterior amygdaloid area, the magnocellular preoptic nucleus, and the anterior part of the basomedial amygdaloid nucleus. We additionally found and reconstructed a single corticopetal axon arising from the VPm. The new results show that both direct and indirect projections from the basolateral complex and EAS to the ventral striatopallidal system are reciprocated by VP projections, and suggest that the systems can be activated simultaneously. The results additionally suggest that the amygdaloid complex and cortex are innervated separately from the VP. Finally, the combination of new and previous data indicate that approximately 84 % of VP axons (88/105) participate in basal ganglia circuits, 15 % (16/105) target the amygdaloid complex, and less than 1 % innervate the cortex.
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Affiliation(s)
- S Mongia
- Departamento de Anatomía, Facultad de Medicina, Universidad de Navarra, Ed. Los Castaños, C/. Irunlarrea 1, 31008, Pamplona, Navarra, Spain
| | - A Tripathi
- Center for Applied Medical Research (CIMA), Division of Neurosciences, Universidad de Navarra, Pamplona, Spain.,Department of Integrative Medical Biology, Umeå University, 90187, Umeå, Sweden
| | - E Mengual
- Center for Applied Medical Research (CIMA), Division of Neurosciences, Universidad de Navarra, Pamplona, Spain. .,Departamento de Anatomía, Facultad de Medicina, Universidad de Navarra, Ed. Los Castaños, C/. Irunlarrea 1, 31008, Pamplona, Navarra, Spain.
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Tripathi A, Shukla SK, Singh A, Prasad KN. Prevalence, outcome and risk factor associated with vancomycin-resistant Enterococcus faecalis and Enterococcus faecium at a Tertiary Care Hospital in Northern India. Indian J Med Microbiol 2016; 34:38-45. [DOI: 10.4103/0255-0857.174099] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Grover S, Avasthi A, Tripathi A, Tanra AJ, Chee KY, He YL, Chiu HF, Kuga H, Lee MS, Chong MY, Udormatn P, Kanba S, Yang SY, Si TM, Sim K, Tan CH, Shen WW, Xiang YT, Sartorius N, Shinfuku N. Antidepressant Prescription Pattern in the Presence of Medical Co-morbidity: REAP-AD 2013 Study. East Asian Arch Psychiatry 2015; 25:99-107. [PMID: 26429836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To evaluate the prescription pattern of antidepressants in patients with medical co-morbidity from major psychiatric centres in Asia. METHODS The Research on Asian Psychotropic Prescription Pattern for Antidepressants (REAP-AD 2013) collected data from 42 psychiatric centres in 10 Asian countries and regions. Antidepressant prescriptions of 2320 patients with various psychiatric disorders were evaluated. Of these, 370 patients who had specified medical co-morbidities formed the study cohort. RESULTS Escitalopram (20%) and mirtazapine (20%) were the most commonly prescribed antidepressants in patients with medical co-morbidity followed by sertraline (16%), trazodone (15%), and paroxetine (12%). Overall, more than half (52%; 247/476) of prescriptions comprised selective serotonin reuptake inhibitors. Slightly less than two-thirds (63%; n = 233) of patients received at least 1 selective serotonin reuptake inhibitor. In addition, 79% of patients were prescribed only 1 antidepressant. The mean number of antidepressants used per patient was 1.25 (standard deviation, 0.56). There were subtle differences in the most preferred antidepressant across medical illnesses such as diabetes mellitus, liver dysfunction, acid peptic disease, and cerebrovascular disease. Differences were also seen in prescription patterns across different countries. CONCLUSION Although selective serotonin reuptake inhibitors formed the bulk of antidepressant prescriptions in the presence of medical co-morbidity, mirtazapine was also commonly used in the presence of medical co-morbidities. Specified medical morbidities do influence the selection of antidepressants.
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Affiliation(s)
- S Grover
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - A Avasthi
- Department of Psychiatry, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, India
| | - A Tripathi
- Department of Psychiatry, King George's Medical University, Chowk, Lucknow, India
| | - A J Tanra
- Department of Psychiatry, Hasanuddin University Faculty of Medicine, Makassar, Sulawesi Selatan, Indonesia
| | - K Y Chee
- Department of Psychiatry and Mental Health, Kuala Lumpur Hospital, Kuala Lumpur, Malaysia
| | - Y L He
- Department of Psychiatric Epidemiology, Shanghai Mental Health Center, Shanghai, PR China
| | - H Fk Chiu
- Department of Psychiatry, The Chinese University of Hong Kong, Hong Kong SAR, PR China
| | - H Kuga
- Department of Neuropsychiatry, Kyushu University, Fukuoka, Japan
| | - M S Lee
- Department of Psychiatry, College of Medicine, Korea University, Seoul, Korea
| | - M Y Chong
- Department of Psychiatry, Kaohsiung Chang Gung Memorial Hospital-Kaohsiung Medical Center and School of Medicine, Chang Gung University, Taiwan
| | - P Udormatn
- Department of Psychiatry, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - S Kanba
- Department of Neuropsychiatry, Kyushu University, Fukuoka, Japan
| | - S Y Yang
- Department of Pharmacy, Taipei City Hospital, Taipei, Taiwan
| | - T M Si
- Department of Psychiatry, Peking University Institute of Mental Health, Beijing, PR China
| | - K Sim
- Institute of Mental Health, Buangkok View, Buangkok Green Medical Park Singapore, Taipei, Taiwan
| | - C H Tan
- Department of Pharmacology, National University of Singapore, Singapore
| | - W W Shen
- Department of Psychiatry, TMU-Wan Fang Medical Center, Taipei Medical University, Taipei, Taiwan
| | - Y T Xiang
- Faculty of Health Sciences, University of Macau, Macao SAR, PR China
| | - N Sartorius
- Association for the Improvement of Mental Health Programmes, Geneva, Switzerland
| | - N Shinfuku
- Department of Psychiatry, Kobe University, Kobe, Japan
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Tripathi A, Liese AD, Jerrell JM, Zhang J, Rizvi AA, Albrecht H, Duffus WA. Incidence of diabetes mellitus in a population-based cohort of HIV-infected and non-HIV-infected persons: the impact of clinical and therapeutic factors over time. Diabet Med 2014; 31:1185-93. [PMID: 24673640 DOI: 10.1111/dme.12455] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 10/30/2013] [Accepted: 03/21/2014] [Indexed: 11/29/2022]
Abstract
AIMS To examine incidence density rate and correlates of incident diabetes mellitus in a cohort of HIV-infected individuals compared with matched non-HIV-infected persons. METHODS Data were obtained from the South Carolina Medicaid system and the enhanced HIV/AIDS Reporting System surveillance database for persons ≥ 18 years of age who had been attended to during the period 1994 to 2011. Time-dependent proportional hazards analysis and marginal structural models were used to analyse the data. RESULTS A total of 13 632 individuals (6816, 1:1 matched HIV-infected and non-HIV-infected persons; median age 39 years; 57% male) contributed 88 359 person-years of follow-up. Incidence rate of diabetes was higher in the non-HIV-infected group compared with the HIV-infected group (13.60 vs. 11.35 per 1000 person-years). Multivariable hazards analysis suggested a significantly lower risk of incident diabetes among HIV-infected persons treated with combination antiretroviral therapy compared with the matched non-HIV-infected persons (adjusted hazards ratio 0.55; 95% CI 0.46-0.65). Among HIV-infected persons, marginal structural modelling suggested a significantly higher risk of diabetes with cumulative exposure to protease inhibitors over the observation period (adjusted relative risk 1.35; 95% CI 1.03-1.78), but this association was not significant for exposure to non-nucleoside reverse transcriptase inhibitors. Overall, female gender, older age, non-white race/ethnicity, and pre-existing hypertension, dyslipidaemia, obesity and hepatitis C infection were associated with higher risk of diabetes incidence. CONCLUSIONS HIV infection may not be independently associated with increased risk of diabetes. Among HIV-infected persons, exposure to protease inhibitor-based regimens may increase the risk of diabetes. Healthcare providers should make every effort to use combination antiretroviral therapy regimens with a better cardiometabolic profile.
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Affiliation(s)
- A Tripathi
- Division of Internal Medicine, Department of Medicine, University of Mississippi School of Medicine, Jackson, MS, USA
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Tripathi A, Mazumder P, Chandewar A. Evaluation of Drug Interaction of Glimepiride with Phosphodiesterase Inhibitors Type V in Diabetic Nephropathy. Exp Clin Endocrinol Diabetes 2014; 122:597-601. [DOI: 10.1055/s-0034-1382034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- A. Tripathi
- Department of Pharmacology, P. Wadhwani College of Pharmacy, Yavatmal, Maharashtra, India
| | - P. Mazumder
- Department of Pharmaceutical Sciences, Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
| | - A. Chandewar
- Department of Pharmaceutical Chemistry, P. Wadhwani College of Pharmacy, Yavatmal, Maharashtra, India
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Tripathi A, Indoliya Y, Tiwari M, Tiwari P, Srivastava D, kumar Verma P, Verma S, Gautam N, Chakrabarty D. Transformed yeast (Schizosaccharomyces pombe) overexpressing rice Tau class glutathione S-transferase (OsGSTU30 and OsGSTU41) shows enhanced resistance to hexavalent chromium. Metallomics 2014; 6:1549-57. [PMID: 24968244 DOI: 10.1039/c4mt00083h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Two Tau class GSTs that are up-regulated in rice roots upon exposure to Cr(vi), showed resistance when expressed in yeast.
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Affiliation(s)
- Ankita Tripathi
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
| | - Yuvraj Indoliya
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
- Academy of Scientific and Innovative Research (AcSIR)
- Anusandhan Bhawan
- New Delhi-110 001, India
| | - Madhu Tiwari
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
| | - Poonam Tiwari
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
| | - Dipali Srivastava
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
| | - Pankaj kumar Verma
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
| | - Shikha Verma
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
| | - Neelam Gautam
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
- Academy of Scientific and Innovative Research (AcSIR)
- Anusandhan Bhawan
- New Delhi-110 001, India
| | - Debasis Chakrabarty
- Council of Scientific and Industrial Research - National Botanical Research Institute (CSIR-NBRI)
- Lucknow-226001, India
- Academy of Scientific and Innovative Research (AcSIR)
- Anusandhan Bhawan
- New Delhi-110 001, India
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Tripathi A, Nischal A, Dalal PK, Agarwal V, Agarwal M, Trivedi JK, Gupta B, Arya A. Sociodemographic and clinical profile of homeless mentally ill inpatients in a north Indian medical university. Asian J Psychiatr 2013; 6:404-9. [PMID: 24011688 DOI: 10.1016/j.ajp.2013.05.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2012] [Revised: 04/21/2013] [Accepted: 05/12/2013] [Indexed: 11/26/2022]
Abstract
Homeless mentally ill (HMI) persons are a highly vulnerable and socially disadvantaged population, deprived of even the basic minimal human rights. Data on HMI in India is scarce. This retrospective chart review aimed to evaluate socio-demographic, socio-cultural and clinical profile of HMI patients, and to study reasons of homelessness and outcome related variables in these patients. One hundred and forty homeless persons were admitted to the department of psychiatry of a north Indian medical university from February 2005 to July 2011. Of these, one hundred and twenty-seven (90.7%) had psychiatric illness and six had only intellectual disabilities. The majority of HMI persons were illiterate/minimally literate, adult, male, and from low socioeconomic and rural backgrounds. Most of the patients (55.7%) had more than one psychiatric diagnosis. HMI had considerably high rates of co-morbid substance abuse (44.3%), intellectual disabilities (38.6%) and physical problems (75.4%). Most (84.3%) were mentally ill before leaving home and 54.3% left home themselves due to the illness. Most HMI responded to the treatment. After treatment of mental illness, it was possible to reintegrate about 70% of the patients into their families. Families were willing to accept and support them. Untreated/inadequately treated mental illness was the most common reason for homelessness. Easily accessible treatment and rehabilitation facilities at low cost can improve the plight of such patients. Further research in this area is required.
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Affiliation(s)
- A Tripathi
- Department of Psychiatry, King George Medical University, Shahmeena Road, Chowk, Lucknow 226003, UP, India.
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Tripathi A, Shukla SK, Singh A, Prasad KN. A new approach of real time polymerase chain reaction in detection of vancomycin-resistant enterococci and its comparison with other methods. Indian J Med Microbiol 2013; 31:47-52. [PMID: 23508429 DOI: 10.4103/0255-0857.108721] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Vancomycin-resistant enterococci (VRE) are third leading cause of nosocomial infection. Therefore, an effective, accurate and early detection of VRE along with their minimum inhibitory concentrations (MICs) is required to initiate appropriate therapy and thus better patient outcome. OBJECTIVE To detect VRE by real time quantitative polymerase chain reaction (Q-PCR) and to compare the results with chrom ID (C-ID) VRE and PCR. Further the study also determined the fold change of vanA gene by Q-PCR in different groups of VRE isolates classified on the basis of glycopeptides MIC range. SUBJECTS AND METHODS A total of 145 (80 VRE and 65 vancomycin-susceptible enterococci) clinical isolates were included in the study. After the screening of VRE isolates MICs were determined by E-test and agar dilution method. Further VRE was confirmed by vanA and vanB specific PCR and Q-PCR. RESULTS The sensitivity and specificity of C-ID VRE was 100% and 95.38%. However, sensitivity and specificity of conventional and Q-PCR were found to be 100%. Conventional and Q-PCR confirmed that our all isolates were vanA type. Mean R value was significantly higher ( P < 0.001) in group I (MIC > 1024 μg/ml) when compared to group II (MIC 512-1024 μg/ml) and group III (MIC < 512 μg/ml) isolates. The mean R was also significantly higher in group II when compared to group III isolates ( P = 0.038). CONCLUSION Q-PCR is a rapid technique to detect vanA in enterococci along with their MIC range, thus it might be helpful to decide the treatment modalities of infections caused by VRE.
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Affiliation(s)
- A Tripathi
- Department of Microbiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Tripathi A, Dewani A, Shelke P, Bakal R, Chandewar A, Mazumder P. Development and Validation of RP-HPLC Method for Simultaneous Estimation of Glimepiride and Sildenafil Citrate in Rat Plasma-Application to Pharmacokinetic Studies. Drug Res (Stuttg) 2013; 63:510-4. [DOI: 10.1055/s-0033-1349865] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- A. Tripathi
- Department of Pharmacology, P. Wadhwani College of Pharmacy, Maharashtra, India
| | - A. Dewani
- Department of Quality Assurance, P. Wadhwani College of Pharmacy, Maharashtra, India
| | - P. Shelke
- Department of Pharmaceutical Chemistry, P. Wadhwani College of Pharmacy, Maharashtra, India
| | - R. Bakal
- Department of Quality Assurance, P. Wadhwani College of Pharmacy, Maharashtra, India
| | - A. Chandewar
- Department of Pharmaceutical Chemistry, P. Wadhwani College of Pharmacy, Maharashtra, India
| | - P. Mazumder
- Department of Pharmaceutical Sciences, Birla Institute of Technology, Jharkhand, India
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Hruszkewycz SO, Highland MJ, Holt MV, Kim D, Folkman CM, Thompson C, Tripathi A, Stephenson GB, Hong S, Fuoss PH. Imaging local polarization in ferroelectric thin films by coherent x-ray Bragg projection ptychography. Phys Rev Lett 2013; 110:177601. [PMID: 23679778 DOI: 10.1103/physrevlett.110.177601] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Indexed: 06/02/2023]
Abstract
We used x-ray Bragg projection ptychography (BPP) to map spatial variations of ferroelectric polarization in thin film PbTiO3, which exhibited a striped nanoscale domain pattern on a high-miscut (001) SrTiO3 substrate. By converting the reconstructed BPP phase image to picometer-scale ionic displacements in the polar unit cell, a quantitative polarization map was made that was consistent with other characterization. The spatial resolution of 5.7 nm demonstrated here establishes BPP as an important tool for nanoscale ferroelectric domain imaging, especially in complex environments accessible with hard x rays.
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Affiliation(s)
- S O Hruszkewycz
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Shukla SK, Prasad KN, Tripathi A, Ghoshal UC, Krishnani N, Husain N. Expression profile of latent and lytic transcripts of epstein-barr virus in patients with gastroduodenal diseases: a study from northern India. J Med Virol 2012; 84:1289-97. [PMID: 22711358 DOI: 10.1002/jmv.23322] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Epstein-Barr virus (EBV) has been shown to be associated with gastric cancer. However, inconsistent findings have been reported regarding the EBV reactivation in gastric cancer and non-carcinomatous gastric epithelium. Therefore, the aim of the study was to investigate the effect of clinicopathological findings on the expression of different transcripts of EBV in patients with gastric cancer, peptic ulcer, and dyspepsia. A total of 200 adult patients (dyspepsia [120], peptic ulcer [30], gastric cancer [50]) undergoing upper gastrointestinal endoscopy were enrolled. EBV infection was diagnosed with non-polymorphic Epstein-Barr nuclear antigen1 (EBNA1) gene based PCR and confirmed by real-time PCR. The transcripts of EBV were detected by real-time RT-PCR. In patients with gastric cancer and peptic ulcer, EBV DNA was detected more often than in those with dyspepsia (P < 0.05). EBNA1 transcript was detected in all EBV positive cases and its expression was neither associated with disease nor with histopathological findings. The expression of BZLF1 was significantly associated with gastric cancer and peptic ulcer compared to dyspepsia (P < 0.01). BZLF1 expression was also found to be higher in Helicobacter pylori infected patients (P = 0.058). Expression of BARF1 and BcLF1 were significantly higher in gastric epithelium of patients having severe grade chronic inflammation (P = 0.05) and gastric atrophy (P = 0.02), respectively. In conclusion, increased expression of lytic transcripts in patients with gastric cancer, peptic ulcer, gastric atrophy, chronic inflammation and H. pylori infection suggests the association of these factors with EBV reactivation.
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Affiliation(s)
- S K Shukla
- Department of Microbiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, India
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Hruszkewycz SO, Holt MV, Murray CE, Bruley J, Holt J, Tripathi A, Shpyrko OG, McNulty I, Highland MJ, Fuoss PH. Quantitative nanoscale imaging of lattice distortions in epitaxial semiconductor heterostructures using nanofocused X-ray Bragg projection ptychography. Nano Lett 2012; 12:5148-5154. [PMID: 22998744 DOI: 10.1021/nl303201w] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We imaged nanoscale lattice strain in a multilayer semiconductor device prototype with a new X-ray technique, nanofocused Bragg projection ptychography. Applying this technique to the epitaxial stressor layer of a SiGe-on-SOI structure, we measured the internal lattice behavior in a targeted region of a single device and demonstrated that its internal strain profile consisted of two competing lattice distortions. These results provide the strongest nondestructive test to date of continuum modeling predictions of nanoscale strain distributions.
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Affiliation(s)
- S O Hruszkewycz
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
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Gupta P, Sivakumar T, Agarwal V, Sitholey P, Tripathi A. P-296 - A clinical study of phenomenology and comorbidity of paediatric bipolar disorders (BPD) from indian subcontinent. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74463-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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