139 results on '"Dinesh, T"'
Search Results
102. Studies on sensitivity of zebrafish as a model organism for Parkinson's disease: Comparison with rat model
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Makhija, Dinesh T., primary and Jagtap, Aarti G., additional
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- 2014
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103. Central nervous system activity of an aqueous acetonic extract of Ficus carica L. in mice
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Yadunath M. Joshi, Dinesh T. Makhija, and Mittal M. Bhanushali
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medicine.drug_class ,medicine.medical_treatment ,Central nervous system ,Ficus ,Pharmacology ,neurotransmitters ,Experimental ,Ficus carica ,Drug Discovery ,Sedative/hypnotic ,Anti-anxiety ,medicine ,Original Research Article ,lcsh:Miscellaneous systems and treatments ,sedative-hypnotic ,biology ,Chemistry ,Muscle relaxant ,lcsh:RZ409.7-999 ,biology.organism_classification ,muscle-relaxant ,Anticonvulsant ,Nociception ,medicine.anatomical_structure ,Complementary and alternative medicine ,Carica ,anticonvulsant ,Licking - Abstract
Background: Ficus carica Linn. is reported to possess variety of activities, but its potential in CNS disorders is still to be explored. Objective: The present study was carried out to evaluate the CNS depressant activity of aqueous acetonic extract of Ficus carica Linn on different models in mice. Materials and Methods: The aerial parts of the plant Ficus carica L. were extracted with aqueous acetone and the solvent was removed by rotary vacuum evaporator under reduced pressure. A crude extract was given orally and its effects were tested on ketamine-induced sleeping time, muscle-coordination, anxiety (elevated-plus maze and Staircase test), convulsions [maximal electroshock (MES) and pentylenetetrazole (PTZ)-induced seizures], and nociception. In addition, we determined the levels of neurotransmitters, norepinephrine (NE) and 5-hydroxytryptamine (5-HT). Results: Results from the experimental models tested showed: (1) a delay on onset and prolongation of sleep of ketamine-induced sleeping time; (2) significant muscle relaxant activity; (3) a significant attenuation in the anxiety-response (4) a delay in the onset of seizures and reduction in duration of seizures and mortality induced by MES and PTZ; (5) a reduction in the licking time in nociception test and (6) increased levels of NE and 5-HT. Conclusion: This suggests that Ficus carica L. exerts its CNS depressive effect by modulating the neurotransmitters NE and 5-HT in the brain.
- Published
- 2014
104. Asymmetric synthesis of carbocycles: use of intramolecular conjugate displacement
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Sreedharan, Dinesh T., primary and Clive, Derrick L. J., additional
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- 2013
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105. Docetaxel in cationic lipid nanocapsules for enhanced in vivo activity.
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Jain, Ankitkumar S., Makhija, Dinesh T., Goel, Peeyush N., Shah, Sanket M., Nikam, Yuvraj, Gude, Rajiv P., Jagtap, Aarti G., and Nagarsenker, Mangal S.
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DOCETAXEL ,CATIONIC lipids ,NANOCAPSULES ,ANTINEOPLASTIC agents ,BIOAVAILABILITY ,ZEBRA danio - Abstract
The usefulness of Docetaxel (DT) as an anti-cancer agent is limited to parenteral route owing to its very poor oral bioavailability. Thus, to improve its oral efficacy, DT was loaded in novel cationic lipid nanocapsules (DT CLNC). The DT CLNC possessed size of 130–150 nm, zeta potential of +72mV, adequate DT loading and over 95% encapsulation efficiency. TEM revealed capsular structure of DT CLNC. Lipolysis study indicated improved solubilization of DT by nanocapsules in comparison to DT solution. DT CLNC exhibited significantly higher release of DT in comparison to DT solution duringin vitropermeation studies employing non-reverted rat-intestinal sac. Superior uptake of DT in zebra fishes exposed to DT CLNC resulted in greater apoptosis-based cell death as compared to those exposed to DT solution. This correlated well with the significantly superior (p < 0.05) anti-angiogenic activity of DT CLNC system over DT solution, in zebra fish model. DT CLNC also inhibited tumor growth in melanoma cell line induced tumors in C57BL/6 mice significantly, as compared to DT solution (p < 0.05). The DT CLNC system demonstrated adequate stability, with tremendous potential to improve oral efficacy of DT and can serve as an alternative to existing DT formulations available commercially for parenteral use. [ABSTRACT FROM AUTHOR]
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- 2016
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106. Asymmetric synthesis of carbocycles: use of intramolecular conjugate displacement
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Dinesh T. Sreedharan and Derrick L. J. Clive
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Molecular Structure ,Geminal ,Stereochemistry ,Chemistry ,Organic Chemistry ,Enantioselective synthesis ,Hydrocarbons, Cyclic ,Ring (chemistry) ,Biochemistry ,Medicinal chemistry ,Adduct ,Deprotonation ,Cyclization ,Alcohols ,Intramolecular force ,Sulfones ,Physical and Theoretical Chemistry ,Oxidation-Reduction ,Conjugate - Abstract
Intramolecular conjugate displacement (ICD), the process illustrated in eqn (1), has been applied to the Morita–Baylis–Hillman adducts formed from (5S)-5-(L-menthyloxy)-2(5H)-furanone and aldehydes that are substituted in the γ- or δ-position by geminal phenylthio groups. When the initial Morita–Baylis–Hillman alcohols are acetylated and oxidized to geminal sulfones, deprotonation causes ring closure by ICD (2.5→2.6). Hydrogenation, DIBAL-H reduction and desulfonylation releases an optically pure carbocycle.
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- 2013
107. Word category disambiguation for malayalam
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Dinesh, T., primary, Jayan, V., additional, and Bhadran, V. K., additional
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- 2012
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108. Alipi
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Dinesh, T. B., primary and Choppella, Venkatesh, additional
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- 2012
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109. An Improved HPLC Method for Estimation of Phyllanthin and Hypophyllanthin in Phyllanthus amarus
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Murali, B., Amit, A., Anand, M. S., Dinesh, T. K., Samiulla, D. S., Murali, B., Amit, A., Anand, M. S., Dinesh, T. K., and Samiulla, D. S.
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Objective: To develop an improved HPLC method for estimation of phyllanthin and hypophyllanthin in Phyllanthus amarus. Materials and methods: An Isocratic, reversed phase (RP) HPLC procedure has been adopted using a mixture of pH 2.8 Phosphate buffer and acetonitrile as mobile phase, CN column as stationary phase and UV detector. Results: The developed method shows high resolution (R = 1.9), accuracy and reproducibility. Conclusion: The method developed is relatively better in terms of separation than the previously reported methods.
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- 2001
110. Hexapus bidentatus sp. nov. (Crustacea: Decapoda: Brachyura: Hexapodidae), a new species from Goa, west coast of India.
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Velip, Dinesh T. and Rivonker, Chandrashekher U.
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CRABS , *SPECIES diversity , *SPECIES distribution , *BIOLOGICAL classification - Abstract
A new species of hexapodid crab,Hexapus bidentatussp. nov. is described from Goa, west coast of India. The new species differs from its closest congener,H. estuarinusin possessing more slender chelipeds, two large basal teeth on the dactylus and two small basal teeth on the pollex of the larger cheliped, a smaller cheliped with more or less straight fingers with a triangular gap between them, and the tip of the gonopod (G1) with nine spines on the outer border. Additionally, an updated description ofH. estuarinusbased on an examination of the holotype and another specimen collected from Goa is provided. A comparative analysis ofH. sexpes,H. estuarinusand the new species is made. A key to all the five valid species of the genusHexapus, including the new species, is provided. http://zoobank.org/urn:lsid:zoobank.org:pub:EBBEA81F-6D4D-4CB3-8796-7E2A578A8B03 [ABSTRACT FROM AUTHOR]
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- 2015
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111. Comparative effect of 12 weeks of slow and fast pranayama training on pulmonary function in young, healthy volunteers: A randomized controlled trial.
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Dinesh, T., Gaur, G. S., Sharma, V. K., Kumar, K. T. Harichandra, Madanmohan, T., and Bhavanani, A. B.
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Context: Pranayamas are breathing techniques that exert profound physiological effects on pulmonary, cardiovascular, and mental functions. Previous studies demonstrate that different types of pranayamas produce divergent effects. Aim: The aim was to compare the effect of 12 weeks of slow and fast pranayama training on pulmonary function in young, healthy volunteers. Settings and Design: This study was carried out in Departments of Physiology and ACYTER, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry in 2011. Subjects and Methods: Ninety one healthy volunteers were randomized into slow pranayama group (SPG), n =29, fast pranayama group (FPG), n = 32 and control groups (CG) (n = 30). Supervised pranayama training (SPG: Nadisodhana, Pranav pranayama and Savitri pranayama; FPG: Kapalabhati, Bhastrika and Kukkriya pranayama) was given for 30 min/day, thrice/week for 12 weeks by certified yoga instructors. Pulmonary function parameters (PFT) such as forced vital capacity (FVC), forced expiratory volume in first second (FEV
1 ), ratio between FEV1 and FVC (FEV1 /FVC), peak expiratory flow rate (PEFR), maximum voluntary ventilation (MVV), and forced expiratory flow25-75 (FEF25-75 ), were recorded at baseline and after 12 weeks of pranayama training using the computerized spirometer (Micro laboratory V1.32, England). Results: In SPG, PEFR, and FEF25-75 improved significantly (P < 0.05) while other parameters (FVC, FEV1 , FEV1 /FVC, and MVV) showed only marginal improvements. In FPG, FEV1 /FVC, PEFR, and FEF25-75 parameters improved significantly (P < 0.05), while FVC, FEV1 , and MVV did not show significant (P > 0.05) change. No significant change was observed in CG. Conclusion: Twelve weeks of pranayama training in young subjects showed improvement in the commonly measured PFT. This indicates that pranayama training improved pulmonary function and that this was more pronounced in the FPG. [ABSTRACT FROM AUTHOR]- Published
- 2015
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112. Community Software Applications.
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Venkatesh, Alladi, Gonsalves, Timothy, Monk, Andrew, Buckner, Kathy, Dinesh, T. B., and Uskudarli, S.
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This is a case study of developing and using community knowledge management software. The context of the case study is a school. During a training workshop staff at a school was introduced to a community knowledge management system. The intent was for them to use it for lesson planning and discussions. Instead, they built a series of applications that they could use to make the school administration more efficient. These applications consisted of Admission, Library, Store and Personnel Management. This case study demonstrates that the ICT need for the next billion is to provide them with systems that they can customize and manage for their needs. An anticipated domino effect would be that they help customize applications for their neighbors' needs, thereby narrowing a digital divide caused by the mystification of application development. [ABSTRACT FROM AUTHOR]
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- 2007
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113. Demonitizaton and its effects on digital payments
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Dinesh, T.M., Reddy, Kiran Kumar, and Suhasini, K.
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- 2018
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114. A slicing-based approach for locating type errors
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Tip, F., primary and Dinesh, T. B., additional
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- 2001
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115. Equations as a uniform framework for partial evaluation and abstract interpretation
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Field, J., primary, Heering, J., additional, and Dinesh, T. B., additional
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- 1998
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116. A Case Study of a Slicing-Based Approach for Locating Type Errors
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Dinesh, T. B., primary and Tip, Frank, additional
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- 1997
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117. Toward a complete transformational toolkit for compilers
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Bergstra, J. A., primary, Dinesh, T. B., additional, Field, J., additional, and Heering, J., additional
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- 1997
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118. Casualty between cotton area and Sesamum area in Andhra Pradesh state-An ARDL bounds testing approach
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Reddy, Pannala Divakar, Dinesh, T.M., Kumar, N. Vijay, and Maiadua, Safiyanu Umar
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- 2017
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119. Millers preference towards technological attributes in pigeonpea in N-E Karnataka
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Dinesh, TM and Patil, Suresh S
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- 2018
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120. Extending compound assignments for C++
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Dinesh, T. B., primary
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- 1992
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121. Incidence Algebras and Labelings of Graph Structures.
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Dinesh, T. and Ramakrishnan, T. V.
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INCIDENCE algebras , *GRAPH theory , *GRAPH labelings , *VECTOR algebra , *COMBINATORICS , *MATRICES (Mathematics) , *COMMUTATIVE algebra - Abstract
Ancykutty Joseph, On Incidence Algebras and Directed Graphs, IJMMS, 31:5(2002), 301-305, studied the incidence algebras of directed graphs. We have extended it to undirected graphs also in our earlier paper. We established a relation between incidence algebras and the labelings and index vectors introduced by R.H. Jeurissen in Incidence Matrix and Labelings of a Graph, Journal of Combinatorial Theory, Series B, Vol 30, Issue 3, June 1981, 290-301, in that paper. In this paper, we extend the concept to graph structures introduced by E. Sampathkumar in On Generalized Graph Structures, Bull. Kerala Math. Assoc., Vol 3, No.2, Dec 2006, 65-123. [ABSTRACT FROM AUTHOR]
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- 2011
122. Growth, instability and resource use efficiency of jowar-random effects approach
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Dinesh, T.M., Suhasini, K., Reddy, Pannala Divakar, and Manohar, Y.
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- 2017
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123. Growth and instability of rice production in India
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Manohar, Y., Jainuddin, S.M., Dinesh, T.M., and Reddy, Pannala Divakar
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- 2017
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124. Study of economics of paddy cultivation under transplantation, system of rice intensification (SRI) and direct seeding in Warangal district of Andhra Pradesh
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Devi, D.A. Rajini, Kumari, R. Vijaya, Reddy, P. Divakar, and Dinesh, T.M.
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- 2017
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125. VAS formalism in VASE
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S Uskudarli, Dinesh, T. B., and Theory of Computer Science (IVI, FNWI)
126. Economic Evaluation of Cooperative Sugar Factories in North-Eastern Karnataka
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Yasmeen, Patil, Suresh S., and Dinesh, T.M.
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- 2015
127. Prospects of pyrolysis oil from plastic waste as fuel for diesel engines: A review
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Mangesh, V L, Padmanabhan, S, Ganesan, S, PrabhudevRahul, D, Dinesh, T, and Reddy, Kumar
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The purpose ofthis study is to review the existing literature about chemical recycling of plastic waste and its potential as fuel for diesel engines. This is a review covering on the field of converting waste plastics into liquid hydrocarbon fuels for diesel engines. Disposal and recycling of waste plastics have become an incremental problem and environmental threat with increasing demand for plastics. One of the effective measures is by converting waste plastic into combustible hydrocarbon liquid as an alternative fuel for running diesel engines. Continued research efforts have been taken by researchers to convert waste plastic in to combustible pyrolysis oil as alternate fuel for diesel engines. An existing literature focuses on the study of chemical structure of the waste plastic pyrolysis compared with diesel oil. Converting waste plastics into fuel oil by different catalysts in catalytic pyrolysis process also reviewed in this paper. The methodology with subsequent hydro treating and hydrocracking of waste plastic pyrolysis oil can reduce unsaturated hydrocarbon bonds which would improve the combustion performance in diesel engines as an alternate fuel.
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- 2017
128. Nanoparticles as Drug Delivery Systems for the Targeted Treatment of Atherosclerosis.
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Pang AS, Dinesh T, Pang NY, Dinesh V, Pang KY, Yong CL, Lee SJJ, Yip GW, Bay BH, and Srinivasan DK
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- Humans, Animals, Theranostic Nanomedicine methods, Plaque, Atherosclerotic drug therapy, Drug Carriers chemistry, Atherosclerosis drug therapy, Nanoparticles chemistry, Drug Delivery Systems methods
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Atherosclerosis continues to be a leading cause of morbidity and mortality globally. The precise evaluation of the extent of an atherosclerotic plaque is essential for forecasting its likelihood of causing health concerns and tracking treatment outcomes. When compared to conventional methods used, nanoparticles offer clear benefits and excellent development opportunities for the detection and characterisation of susceptible atherosclerotic plaques. In this review, we analyse the recent advancements of nanoparticles as theranostics in the management of atherosclerosis, with an emphasis on applications in drug delivery. Furthermore, the main issues that must be resolved in order to advance clinical utility and future developments of NP research are discussed. It is anticipated that medical NPs will develop into complex and advanced next-generation nanobotics that can carry out a variety of functions in the bloodstream.
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- 2024
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129. Design of novel pyrimidine based remdesivir analogues with dual target specificity for SARS CoV-2: A computational approach.
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Dinesh TV, Malgija B, Ponraj MR, Muralakar P, Thathapudi JJ, Kandasamy R, Alagarmalai J, Balakrishnan AB, Ramar PS, James JV, and Bhagavathsingh J
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- Humans, Molecular Docking Simulation, COVID-19 Drug Treatment, Antiviral Agents chemistry, RNA-Dependent RNA Polymerase genetics, Molecular Dynamics Simulation, Pyrimidines pharmacology, SARS-CoV-2 metabolism, COVID-19
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As the world undergone unpreceded time of tragedy with the corona virus, many researchers have raised to showcase their scientific contributions in terms of novel configured anti-viral drugs until now. Herein, we designed pyrimidine based nucleotides and assessed for the binding capability with SARS-CoV-2 viral replication targets of nsp12 RNA-dependent RNA polymerase and M
pro main protease. Molecular docking studies showed all the designed compounds to possess good binding affinity, with a few compounds which outperforms the control drug remdesivir GS-5743 and its active form GS-441524. Further molecular dynamics simulation studies confirmed their stability and preservation of the non-covalent interactions. Based on the present findings Ligand2-BzV_0Tyr, ligand3-BzV_0Ura, and ligand5-EeV_0Tyr showed good binding affinity with Mpro , whereas, ligand1-BzV_0Cys and Ligand2-BzV_0Tyr showed good binding affinity with RdRp, thus could act as potential lead compounds against SARS-CoV-2, which needs further validation studies. In particular, Ligand2-BzV_0Tyr could be more beneficial candidate with the dual target specificity for Mpro and RdRp., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Jebasingh Bhagavathsingh reports were provided by Karunya Institute of Technology and Sciences. Jebasingh Bhagavathsingh reports a relationship with Karunya Institute of Technology and Sciences that includes: employment., (Copyright © 2023 Elsevier B.V. All rights reserved.)- Published
- 2023
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130. Persistence of immune response in heterologous COVID vaccination schedules in the Com-COV2 study - A single-blind, randomised trial incorporating mRNA, viral-vector and protein-adjuvant vaccines.
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Shaw RH, Greenland M, Stuart ASV, Aley PK, Andrews NJ, Cameron JC, Charlton S, Clutterbuck EA, Collins AM, Darton T, Dinesh T, Duncan CJA, Faust SN, Ferreira DM, Finn A, Goodman AL, Green CA, Hallis B, Heath PT, Hill H, Lambe T, Libri V, Lillie PJ, Morey E, Mujadidi YF, Payne R, Plested EL, Provstgaard-Morys S, Ramasamy MN, Ramsay M, Read RC, Robinson H, Screaton GR, Singh N, Turner DPJ, Turner PJ, White R, Nguyen-Van-Tam JS, Liu X, and Snape MD
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- Adult, Female, Humans, Male, COVID-19 Vaccines, ChAdOx1 nCoV-19, BNT162 Vaccine, Pandemics, Single-Blind Method, Vaccination, Immunity, Immunoglobulin G, Antibodies, Viral, COVID-19 prevention & control, Vaccines
- Abstract
Background: Heterologous COVID vaccine priming schedules are immunogenic and effective. This report aims to understand the persistence of immune response to the viral vectored, mRNA and protein-based COVID-19 vaccine platforms used in homologous and heterologous priming combinations, which will inform the choice of vaccine platform in future vaccine development., Methods: Com-COV2 was a single-blinded trial in which adults ≥ 50 years, previously immunised with single dose 'ChAd' (ChAdOx1 nCoV-19, AZD1222, Vaxzevria, Astrazeneca) or 'BNT' (BNT162b2, tozinameran, Comirnaty, Pfizer/BioNTech), were randomised 1:1:1 to receive a second dose 8-12 weeks later with either the homologous vaccine, or 'Mod' (mRNA-1273, Spikevax, Moderna) or 'NVX' (NVX-CoV2373, Nuvaxovid, Novavax). Immunological follow-up and the secondary objective of safety monitoring were performed over nine months. Analyses of antibody and cellular assays were performed on an intention-to-treat population without evidence of COVID-19 infection at baseline or for the trial duration., Findings: In April/May 2021, 1072 participants were enrolled at a median of 9.4 weeks after receipt of a single dose of ChAd (N = 540, 45% female) or BNT (N = 532, 39% female) as part of the national vaccination programme. In ChAd-primed participants, ChAd/Mod had the highest anti-spike IgG from day 28 through to 6 months, although the heterologous vs homologous geometric mean ratio (GMR) dropped from 9.7 (95% CI (confidence interval): 8.2, 11.5) at D28 to 6.2 (95% CI: 5.0, 7.7) at D196. The heterologous/homologous GMR for ChAd/NVX similarly dropped from 3.0 (95% CI:2.5,3.5) to 2.4 (95% CI:1.9, 3.0). In BNT-primed participants, decay was similar between heterologous and homologous schedules with BNT/Mod inducing the highest anti-spike IgG for the duration of follow-up. The adjusted GMR (aGMR) for BNT/Mod compared with BNT/BNT increased from 1.36 (95% CI: 1.17, 1.58) at D28 to 1.52 (95% CI: 1.21, 1.90) at D196, whilst for BNT/NVX this aGMR was 0.55 (95% CI: 0.47, 0.64) at day 28 and 0.62 (95% CI: 0.49, 0.78) at day 196. Heterologous ChAd-primed schedules produced and maintained the largest T-cell responses until D196. Immunisation with BNT/NVX generated a qualitatively different antibody response to BNT/BNT, with the total IgG significantly lower than BNT/BNT during all follow-up time points, but similar levels of neutralising antibodies., Interpretation: Heterologous ChAd-primed schedules remain more immunogenic over time in comparison to ChAd/ChAd. BNT-primed schedules with a second dose of either mRNA vaccine also remain more immunogenic over time in comparison to BNT/NVX. The emerging data on mixed schedules using the novel vaccine platforms deployed in the COVID-19 pandemic, suggest that heterologous priming schedules might be considered as a viable option sooner in future pandemics., Isrctn: 27841311 EudraCT:2021-001275-16., Competing Interests: Declaration of interests At the time of this study, MDS acted on behalf of the University of Oxford as an Investigator on studies funded or sponsored by vaccine manufacturers including AstraZeneca, GlaxoSmithKline, Pfizer, Novavax, Janssen, Medimmune, and MCM vaccines. He received no personal financial payment for this work. Subsequent to this study MDS is employed by Moderna Biotech UK and holds equity in this company. Moderna Biotech had no role in the study design, analysis of data or interpretation of results. JSN-V-T was seconded to the Department of Health and Social Care (DHSC), England from October 2017 to March 2022; since leaving DHSC he reports a lecture fee from AstraZeneca. AMC and DMF are investigators on studies funded by Pfizer and Unilever. They receive no personal financial payment for this work. AF is a member of the Joint Committee on Vaccination and Immunisation and chair of the WHO European Technical Advisory Group of Experts (ETAGE) on Immunisation. He is an investigator and/or provides consultative advice on clinical trials and studies of COVID-19 vaccines produced by AstraZeneca, Janssen, Valneva, Pfizer, and Sanofi, and of other vaccines from these and other manufacturers, including GlaxoSmithKline, VPI Pharmaceuticals, Takeda, and Bionet Asia. He receives no personal remuneration or benefits for any of this work. SNF acts on behalf of University Hospital Southampton NHS Foundation Trust as an investigator and/or providing consultative advice on clinical trials and studies of COVID-19 and other vaccines funded or sponsored by vaccine manufacturers, including Janssen, Pfizer, AstraZeneca, GlaxoSmithKline, Novavax, Seqirus, Sanofi, Medimmune, Merck, and Valneva vaccines and antimicrobials. He receives no personal financial payment for this work. PTH acts on behalf of St. George's University of London as an investigator on clinical trials of COVID-19 vaccines funded or sponsored by vaccine manufacturers, including Janssen, Pfizer, AstraZeneca, Novavax, and Valneva. He receives no personal financial payment for this work. CAG acts on behalf of University Hospitals Birmingham NHS Foundation Trust as an investigator on clinical trials and studies of COVID-19 and other vaccines funded or sponsored by vaccine manufacturers, including Janssen, Pfizer, AstraZeneca, Novavax, CureVac, Moderna, and Valneva. He receives no personal financial payment for this work. VL acts on behalf of University College London Hospitals NHS Foundation Trust as an investigator on clinical trials of COVID-19 vaccines funded or sponsored by vaccine manufacturers including Pfizer, AstraZeneca, and Valneva. He receives no personal financial payment for this work. TL is named as an inventor on a patent application covering the ChAd vaccine and is an occasional consultant to Vaccitech, unrelated to this work. ALG is named as an inventor on a patent covering use of a particular promoter construct that is often used in -vectored vaccines and is incorporated in the ChAdOx1 nCoV-19 vaccine. ALG may benefit from royalty income paid to the University of Oxford from sales of this vaccine by AstraZeneca and its sublicensees under the University’s revenue sharing policy. Oxford University has entered into a partnership with AstraZeneca for further development of ChAdOx1 nCoV-19. All other authors declare no competing interests. The views expressed in this manuscript are those of its authors and not necessarily those of DHSC, VTF or NIHR., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2023
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131. Laws of child abuse in Indian perspective: A review.
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Dinesh T, Ayilliath A, Ephraim R, and Parikkal R
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Child abuse is harm or neglect toward a child by another person, whether an adult or child. It is common in all cultural, ethnic, and income groups. It can be physical, emotional-verbal, sexual, or even neglect. Abuse may cause serious injury and may even result in the death of the child. The aim of the paper is to review the child abuse laws prevalent in our country. Literatures were collected from the Google Scholar and E-Journals of legal services to get a sight of the child protection laws and to enlighten indigent children. Even though our country has different sections in the Indian penal code and many laws for the protection of children, still at the zeroth hour many corrupt rises., Competing Interests: There are no conflicts of interest., (Copyright: © 2023 Journal of Family Medicine and Primary Care.)
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- 2023
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132. Human leukocyte antigen alleles associate with COVID-19 vaccine immunogenicity and risk of breakthrough infection.
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Mentzer AJ, O'Connor D, Bibi S, Chelysheva I, Clutterbuck EA, Demissie T, Dinesh T, Edwards NJ, Felle S, Feng S, Flaxman AL, Karp-Tatham E, Li G, Liu X, Marchevsky N, Godfrey L, Makinson R, Bull MB, Fowler J, Alamad B, Malinauskas T, Chong AY, Sanders K, Shaw RH, Voysey M, Snape MD, Pollard AJ, Lambe T, and Knight JC
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- Humans, Alleles, Antibodies, Viral, ChAdOx1 nCoV-19, SARS-CoV-2, Vaccination, Breakthrough Infections, COVID-19 genetics, COVID-19 prevention & control, COVID-19 Vaccines immunology, Histocompatibility Antigens Class II, Immunogenicity, Vaccine
- Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine immunogenicity varies between individuals, and immune responses correlate with vaccine efficacy. Using data from 1,076 participants enrolled in ChAdOx1 nCov-19 vaccine efficacy trials in the United Kingdom, we found that inter-individual variation in normalized antibody responses against SARS-CoV-2 spike and its receptor-binding domain (RBD) at 28 days after first vaccination shows genome-wide significant association with major histocompatibility complex (MHC) class II alleles. The most statistically significant association with higher levels of anti-RBD antibody was HLA-DQB1*06 (P = 3.2 × 10
-9 ), which we replicated in 1,677 additional vaccinees. Individuals carrying HLA-DQB1*06 alleles were less likely to experience PCR-confirmed breakthrough infection during the ancestral SARS-CoV-2 virus and subsequent Alpha variant waves compared to non-carriers (hazard ratio = 0.63, 0.42-0.93, P = 0.02). We identified a distinct spike-derived peptide that is predicted to bind differentially to HLA-DQB1*06 compared to other similar alleles, and we found evidence of increased spike-specific memory B cell responses in HLA-DQB1*06 carriers at 84 days after first vaccination. Our results demonstrate association of HLA type with Coronavirus Disease 2019 (COVID-19) vaccine antibody response and risk of breakthrough infection, with implications for future vaccine design and implementation., (© 2023. The Author(s).)- Published
- 2023
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133. Effect of priming interval on reactogenicity, peak immunological response, and waning after homologous and heterologous COVID-19 vaccine schedules: exploratory analyses of Com-COV, a randomised control trial.
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Shaw RH, Liu X, Stuart ASV, Greenland M, Aley PK, Andrews NJ, Cameron JC, Charlton S, Clutterbuck EA, Collins AM, Dejnirattisai W, Dinesh T, Faust SN, Ferreira DM, Finn A, Green CA, Hallis B, Heath PT, Hill H, Lambe T, Lazarus R, Libri V, Long F, Mujadidi YF, Plested EL, Morey ER, Provstgaard-Morys S, Ramasamy MN, Ramsay M, Read RC, Robinson H, Screaton GR, Singh N, Turner DPJ, Turner PJ, Vichos I, Walker LL, White R, Nguyen-Van-Tam JS, and Snape MD
- Subjects
- Adult, Humans, ChAdOx1 nCoV-19, BNT162 Vaccine, Immunization, Secondary, SARS-CoV-2, Antibodies, Viral, Immunoglobulin G, COVID-19 Vaccines adverse effects, COVID-19 prevention & control
- Abstract
Background: Priming COVID-19 vaccine schedules have been deployed at variable intervals globally, which might influence immune persistence and the relative importance of third-dose booster programmes. Here, we report exploratory analyses from the Com-COV trial, assessing the effect of 4-week versus 12-week priming intervals on reactogenicity and the persistence of immune response up to 6 months after homologous and heterologous priming schedules using the vaccines BNT162b2 (tozinameran, Pfizer/BioNTech) and ChAdOx1 nCoV-19 (AstraZeneca)., Methods: Com-COV was a participant-masked, randomised immunogenicity trial. For these exploratory analyses, we used the trial's general cohort, in which adults aged 50 years or older were randomly assigned to four homologous and four heterologous vaccine schedules using BNT162b2 and ChAdOx1 nCoV-19 with 4-week or 12-week priming intervals (eight groups in total). Immunogenicity analyses were done on the intention-to-treat (ITT) population, comprising participants with no evidence of SARS-CoV-2 infection at baseline or for the trial duration, to assess the effect of priming interval on humoral and cellular immune response 28 days and 6 months post-second dose, in addition to the effects on reactogenicity and safety. The Com-COV trial is registered with the ISRCTN registry, 69254139 (EudraCT 2020-005085-33)., Findings: Between Feb 11 and 26, 2021, 730 participants were randomly assigned in the general cohort, with 77-89 per group in the ITT analysis. At 28 days and 6 months post-second dose, the geometric mean concentration of anti-SARS-CoV-2 spike IgG was significantly higher in the 12-week interval groups than in the 4-week groups for homologous schedules. In heterologous schedule groups, we observed a significant difference between intervals only for the BNT162b2-ChAdOx1 nCoV-19 group at 28 days. Pseudotyped virus neutralisation titres were significantly higher in all 12-week interval groups versus 4-week groups, 28 days post-second dose, with geometric mean ratios of 1·4 (95% CI 1·1-1·8) for homologous BNT162b2, 1·5 (1·2-1·9) for ChAdOx1 nCoV-19-BNT162b2, 1·6 (1·3-2·1) for BNT162b2-ChAdOx1 nCoV-19, and 2·4 (1·7-3·2) for homologous ChAdOx1 nCoV-19. At 6 months post-second dose, anti-spike IgG geometric mean concentrations fell to 0·17-0·24 of the 28-day post-second dose value across all eight study groups, with only homologous BNT162b2 showing a slightly slower decay for the 12-week versus 4-week interval in the adjusted analysis. The rank order of schedules by humoral response was unaffected by interval, with homologous BNT162b2 remaining the most immunogenic by antibody response. T-cell responses were reduced in all 12-week priming intervals compared with their 4-week counterparts. 12-week schedules for homologous BNT162b2 and ChAdOx1 nCoV-19-BNT162b2 were up to 80% less reactogenic than 4-week schedules., Interpretation: These data support flexibility in priming interval in all studied COVID-19 vaccine schedules. Longer priming intervals might result in lower reactogenicity in schedules with BNT162b2 as a second dose and higher humoral immunogenicity in homologous schedules, but overall lower T-cell responses across all schedules. Future vaccines using these novel platforms might benefit from schedules with long intervals., Funding: UK Vaccine Taskforce and National Institute for Health and Care Research., Competing Interests: Declaration of interests MDS acts on behalf of the University of Oxford as an investigator on studies funded or sponsored by vaccine manufacturers AstraZeneca, GlaxoSmithKline, Pfizer, Novavax, Janssen, Medimmune, and MCM vaccines, receiving no personal financial payment for this work. JSN-V-T was seconded to the Department of Health and Social Care (DHSC), England. AMC and DMF are investigators on studies funded by Pfizer and Unilever, receiving no personal financial payment for this work. AF is a member of the Joint Committee on Vaccination and Immunisation and Chair of the WHO European Technical Advisory Group of Experts on immunisation; he is an investigator, provides consultative advice, or both on clinical trials and studies of COVID-19 vaccines produced by AstraZeneca, Janssen, Valneva, Pfizer, and Sanofi and of other vaccines from these and other manufacturers GlaxoSmithKline, VPI, Takeda, and Bionet Asia, receiving no personal remuneration or benefits for any of this work. SNF acts on behalf of University Hospital Southampton NHS Foundation Trust as an investigator, provider of consultative advice, or both on clinical trials and studies of COVID-19 and other vaccines funded or sponsored by vaccine manufacturers Janssen, Pfizer, AstraZeneca, GlaxoSmithKline, Novavax, Seqirus, Sanofi, Medimmune, Merck, and Valneva vaccines and antimicrobials, receiving no personal financial payment for this work. PTH acts on behalf of St George's University of London as an investigator on clinical trials of COVID-19 vaccines funded or sponsored by vaccine manufacturers Janssen, Pfizer, AstraZeneca, Novavax, and Valneva, receiving no personal financial payment for this work. CAG acts on behalf of University Hospitals Birmingham NHS Foundation Trust as an investigator on clinical trials and studies of COVID-19 and other vaccines funded or sponsored by vaccine manufacturers Janssen, Pfizer, AstraZeneca, Novavax, CureVac, Moderna, and Valneva vaccines, receiving no personal financial payment for this work. VL acts on behalf of University College London Hospitals NHS Foundation Trust as an investigator on clinical trials of COVID-19 vaccines funded or sponsored by vaccine manufacturers Pfizer, AstraZeneca, and Valneva, receiving no personal financial payment for this work. TL is named as an inventor on a patent application covering this SARS-CoV-2 vaccine (GB2003670.3) and is an occasional consultant to Vaccitech, unrelated to this work. Oxford University has entered into a partnership with AstraZeneca for further development of ChAdOx1 nCoV-19., (Copyright © 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY-NC-ND 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2022
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134. Escalating Ferromagnetic Order via Se-Vacancies Near Vanadium in WSe 2 Monolayers.
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Yun SJ, Cho BW, Dinesh T, Yang DH, Kim YI, Jin JW, Yang SH, Nguyen TD, Kim YM, Kim KK, Duong DL, Kim SG, and Lee YH
- Abstract
Magnetic order has been proposed to arise from a variety of defects, including vacancies, antisites, and grain boundaries, which are relevant in numerous electronics and spintronics applications. Nevertheless, its magnetism remains controversial due to the lack of structural analysis. The escalation of ferromagnetism in vanadium-doped WSe
2 monolayer is herein demonstrated by tailoring complex configurations of Se vacancies (SeVac ) via post heat-treatment. Structural analysis of atomic defects is systematically performed using transmission electron microscopy (TEM), enabled by the monolayer nature. Temperature-dependent magnetoresistance hysteresis ensures enhanced magnetic order after high-temperature heat-treatment, consistent with magnetic domain analysis from magnetic force microscopy (MFM). The vanadium-Se vacancy pairing is a key to promoting ferromagnetism via spin-flip by electron transfer, predicted from density-functional-theory (DFT) calculations. The approach toward nanodefect engineering paves a way to overcome weak magnetic order in diluted magnetic semiconductors (DMSs) for renovating semiconductor spintronics., (© 2022 Wiley-VCH GmbH.)- Published
- 2022
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135. Safety and immunogenicity of heterologous versus homologous prime-boost schedules with an adenoviral vectored and mRNA COVID-19 vaccine (Com-COV): a single-blind, randomised, non-inferiority trial.
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Liu X, Shaw RH, Stuart ASV, Greenland M, Aley PK, Andrews NJ, Cameron JC, Charlton S, Clutterbuck EA, Collins AM, Dinesh T, England A, Faust SN, Ferreira DM, Finn A, Green CA, Hallis B, Heath PT, Hill H, Lambe T, Lazarus R, Libri V, Long F, Mujadidi YF, Plested EL, Provstgaard-Morys S, Ramasamy MN, Ramsay M, Read RC, Robinson H, Singh N, Turner DPJ, Turner PJ, Walker LL, White R, Nguyen-Van-Tam JS, and Snape MD
- Subjects
- Aged, Antibodies, Viral blood, BNT162 Vaccine, COVID-19 Vaccines administration & dosage, ChAdOx1 nCoV-19, Equivalence Trials as Topic, Female, Humans, Immunization Schedule, Immunoglobulin G blood, Intention to Treat Analysis, Male, Middle Aged, Single-Blind Method, Spike Glycoprotein, Coronavirus immunology, COVID-19 prevention & control, COVID-19 Vaccines adverse effects, COVID-19 Vaccines immunology, Immunogenicity, Vaccine
- Abstract
Background: Use of heterologous prime-boost COVID-19 vaccine schedules could facilitate mass COVID-19 immunisation. However, we have previously reported that heterologous schedules incorporating an adenoviral vectored vaccine (ChAdOx1 nCoV-19, AstraZeneca; hereafter referred to as ChAd) and an mRNA vaccine (BNT162b2, Pfizer-BioNTech; hereafter referred to as BNT) at a 4-week interval are more reactogenic than homologous schedules. Here, we report the safety and immunogenicity of heterologous schedules with the ChAd and BNT vaccines., Methods: Com-COV is a participant-blinded, randomised, non-inferiority trial evaluating vaccine safety, reactogenicity, and immunogenicity. Adults aged 50 years and older with no or well controlled comorbidities and no previous SARS-CoV-2 infection by laboratory confirmation were eligible and were recruited at eight sites across the UK. The majority of eligible participants were enrolled into the general cohort (28-day or 84-day prime-boost intervals), who were randomly assigned (1:1:1:1:1:1:1:1) to receive ChAd/ChAd, ChAd/BNT, BNT/BNT, or BNT/ChAd, administered at either 28-day or 84-day prime-boost intervals. A small subset of eligible participants (n=100) were enrolled into an immunology cohort, who had additional blood tests to evaluate immune responses; these participants were randomly assigned (1:1:1:1) to the four schedules (28-day interval only). Participants were masked to the vaccine received but not to the prime-boost interval. The primary endpoint was the geometric mean ratio (GMR) of serum SARS-CoV-2 anti-spike IgG concentration (measured by ELISA) at 28 days after boost, when comparing ChAd/BNT with ChAd/ChAd, and BNT/ChAd with BNT/BNT. The heterologous schedules were considered non-inferior to the approved homologous schedules if the lower limit of the one-sided 97·5% CI of the GMR of these comparisons was greater than 0·63. The primary analysis was done in the per-protocol population, who were seronegative at baseline. Safety analyses were done among participants receiving at least one dose of a study vaccine. The trial is registered with ISRCTN, 69254139., Findings: Between Feb 11 and Feb 26, 2021, 830 participants were enrolled and randomised, including 463 participants with a 28-day prime-boost interval, for whom results are reported here. The mean age of participants was 57·8 years (SD 4·7), with 212 (46%) female participants and 117 (25%) from ethnic minorities. At day 28 post boost, the geometric mean concentration of SARS-CoV-2 anti-spike IgG in ChAd/BNT recipients (12 906 ELU/mL) was non-inferior to that in ChAd/ChAd recipients (1392 ELU/mL), with a GMR of 9·2 (one-sided 97·5% CI 7·5 to ∞). In participants primed with BNT, we did not show non-inferiority of the heterologous schedule (BNT/ChAd, 7133 ELU/mL) against the homologous schedule (BNT/BNT, 14 080 ELU/mL), with a GMR of 0·51 (one-sided 97·5% CI 0·43 to ∞). Four serious adverse events occurred across all groups, none of which were considered to be related to immunisation., Interpretation: Despite the BNT/ChAd regimen not meeting non-inferiority criteria, the SARS-CoV-2 anti-spike IgG concentrations of both heterologous schedules were higher than that of a licensed vaccine schedule (ChAd/ChAd) with proven efficacy against COVID-19 disease and hospitalisation. Along with the higher immunogenicity of ChAd/BNT compared with ChAD/ChAd, these data support flexibility in the use of heterologous prime-boost vaccination using ChAd and BNT COVID-19 vaccines., Funding: UK Vaccine Task Force and National Institute for Health Research., Competing Interests: Declaration of interests MDS acts on behalf of the University of Oxford as an investigator on studies funded or sponsored by vaccine manufacturers, including AstraZeneca, GlaxoSmithKline, Pfizer, Novavax, Janssen, Medimmune, and MCM. He receives no personal financial payment for this work. JSN-V-T is seconded to the Department of Health and Social Care, England. AMC and DMF are investigators on studies funded by Pfizer and Unilever. They receive no personal financial payment for this work. AF is a member of the Joint Committee on Vaccination and Immunisation and chair of the WHO European Technical Advisory Group of Experts on Immunisation. He is an investigator or provides consultative advice on clinical trials and studies of COVID-19 vaccines produced by AstraZeneca, Janssen, Valneva, Pfizer, and Sanofi, and of other vaccines from these and other manufacturers, including GlaxoSmithKline, VPI Pharmaceuticals, Takeda, and Bionet Asia. He receives no personal remuneration or benefits for any of this work. SNF acts on behalf of University Hospital Southampton NHS Foundation Trust as an investigator or provides consultative advice on clinical trials and studies of COVID-19 and other vaccines funded or sponsored by vaccine manufacturers, including Janssen, Pfizer, AstraZeneca, GlaxoSmithKline, Novavax, Seqirus, Sanofi, Medimmune, Merck, and Valneva. He receives no personal financial payment for this work. PTH acts on behalf of St George's University of London as an investigator on clinical trials of COVID-19 vaccines funded or sponsored by vaccine manufacturers, including Janssen, Pfizer, AstraZeneca, Novavax, and Valneva. He receives no personal financial payment for this work. CAG acts on behalf of University Hospitals Birmingham NHS Foundation Trust as an investigator on clinical trials and studies of COVID-19 and other vaccines funded or sponsored by vaccine manufacturers, including Janssen, Pfizer, AstraZeneca, Novavax, CureVac, Moderna, and Valneva. He receives no personal financial payment for this work. VL acts on behalf of University College London Hospitals NHS Foundation Trust as an investigator on clinical trials of COVID-19 vaccines funded or sponsored by vaccine manufacturers including Pfizer, AstraZeneca, and Valneva. He receives no personal financial payment for this work. TL is named as an inventor on a patent application covering the ChAd vaccine and is an occasional consultant to Vaccitech, unrelated to this work. Oxford University has entered into a partnership with AstraZeneca for further development of ChAdOx1 nCoV-19. All other authors declare no competing interests., (Crown Copyright © 2021 Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license.)
- Published
- 2021
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136. Folate-PEG-decorated docetaxel lipid nanoemulsion for improved antitumor activity.
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Afzal SM, Shareef MZ, Dinesh T, and Kishan V
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- Animals, Antineoplastic Agents pharmacokinetics, Antineoplastic Agents therapeutic use, Breast pathology, Breast Neoplasms pathology, Docetaxel, Drug Delivery Systems, Emulsions chemistry, Female, Folic Acid chemistry, HeLa Cells, Humans, MCF-7 Cells, Mice, Inbred BALB C, Nanoparticles chemistry, Taxoids pharmacokinetics, Taxoids therapeutic use, Antineoplastic Agents administration & dosage, Breast drug effects, Breast Neoplasms drug therapy, Drug Carriers chemistry, Folic Acid analogs & derivatives, Lipids chemistry, Polyethylene Glycols chemistry, Taxoids administration & dosage
- Abstract
Aim: To develop a folate-based docetaxel lipid nanoemulsion (FLNE) for tumor-targeted treatment., Materials & Methods: The docetaxel LNEs were prepared and characterized. In vitro cytotoxic and cell uptake studies were performed. The tissue distribution and targeting of drug were studied by fluorescence imaging and tumor regression in mice., Results: The IC50 values of FLNE on cancer cells were significant. The cell uptake studies showed an increase in fluorescence with time. Imaging studies found that FLNE was superior in tumor targeting by 4.81- and 2.08-fold over controls. The tumor regression proved the superiority of FLNEs., Conclusion: The folate strategy was superior over PEGylation, albumin and transferrin strategies. The study demonstrated great potential of FLNE as a prospective targeted delivery system.
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- 2016
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137. Central nervous system activity of an aqueous acetonic extract of Ficus carica L. in mice.
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Bhanushali MM, Makhija DT, and Joshi YM
- Abstract
Background: Ficus carica Linn. is reported to possess variety of activities, but its potential in CNS disorders is still to be explored., Objective: The present study was carried out to evaluate the CNS depressant activity of aqueous acetonic extract of Ficus carica Linn on different models in mice., Materials and Methods: The aerial parts of the plant Ficus carica L. were extracted with aqueous acetone and the solvent was removed by rotary vacuum evaporator under reduced pressure. A crude extract was given orally and its effects were tested on ketamine-induced sleeping time, muscle-coordination, anxiety (elevated-plus maze and Staircase test), convulsions [maximal electroshock (MES) and pentylenetetrazole (PTZ)-induced seizures], and nociception. In addition, we determined the levels of neurotransmitters, norepinephrine (NE) and 5-hydroxytryptamine (5-HT)., Results: RESULTS FROM THE EXPERIMENTAL MODELS TESTED SHOWED: (1) a delay on onset and prolongation of sleep of ketamine-induced sleeping time; (2) significant muscle relaxant activity; (3) a significant attenuation in the anxiety-response (4) a delay in the onset of seizures and reduction in duration of seizures and mortality induced by MES and PTZ; (5) a reduction in the licking time in nociception test and (6) increased levels of NE and 5-HT., Conclusion: This suggests that Ficus carica L. exerts its CNS depressive effect by modulating the neurotransmitters NE and 5-HT in the brain.
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- 2014
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138. Response: An In Vitro Model to Probe the Regulation of Adipocyte Differentiation under Hyperglycemia (Diabetes Metab J 2013;37:176-80).
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Shilpa K, Dinesh T, and Lakshmi BS
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- 2013
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139. An In Vitro Model to Probe the Regulation of Adipocyte Differentiation under Hyperglycemia.
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Shilpa K, Dinesh T, and Lakshmi BS
- Abstract
Background: The aim of this study was an in vitro investigation of the effect of high glucose concentration on adipogenesis, as prolonged hyperglycemia alters adipocyte differentiation., Methods: 3T3-L1 preadipocytes differentiated in the presence of varying concentrations of glucose (25, 45, 65, 85, and 105 mM) were assessed for adipogenesis using AdipoRed (Lonza) assay. Cell viability and proliferation were measured using MTT reduction and [(3)H] thymidine incorporation assay. The extent of glucose uptake and glycogen synthesis were measured using radiolabelled 2-deoxy-D-[1-(3)H] glucose and [(14)C]-UDP-glucose. The gene level expression was evaluated using reverse transcription-polymerase chain reaction and protein expression was studied using Western blot analysis., Results: Glucose at 105 mM concentration was observed to inhibit adipogenesis through inhibition of CCAAT-enhancer-binding proteins, sterol regulatory element-binding protein, peroxisome proliferator-activated receptor and adiponectin. High concentration of glucose induced stress by increasing levels of toll-like receptor 4, nuclear factor κB and tumor necrosis factor α thereby generating activated preadipocytes. These cells entered the state of hyperplasia through inhibition of p27 and proliferation was found to increase through activation of protein kinase B via phosphoinositide 3 kinase dependent pathway. This condition inhibited insulin signaling through decrease in insulin receptor β. Although the glucose transporter 4 (GLUT4) protein remained unaltered with the glycogen synthesis inhibited, the cells were found to exhibit an increase in glucose uptake via GLUT1., Conclusion: Adipogenesis in the presence of 105 mM glucose leads to an uncontrolled proliferation of activated preadipocytes providing an insight towards understanding obesity.
- Published
- 2013
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