101
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Bhattacharyya S, Roskruge M, Sidhu K, Nair R, Smyth D, Webster M, Ruygrok P, Ormiston J, Pasupati S. National multi-centre cost-comparison of trans-catheter aortic valve implantation (TAVI) versus surgical aortic valve replacement (SAVR) in moderate to high-risk patients with severe symptomatic aortic stenosis in New Zealand (NZ). Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.04.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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102
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Purkait K, Karmakar S, Bhattacharyya S, Chatterjee S, Dey SK, Mukherjee A. A hypoxia efficient imidazole-based Ru(ii) arene anticancer agent resistant to deactivation by glutathione. Dalton Trans 2015; 44:5969-73. [DOI: 10.1039/c4dt03983a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[RuII(η6-p-cym)(L)Cl](PF6) is slow to hydrolyze and shows better anticancer activity in hypoxia with strong resistance to deactivation by l-glutathione.
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103
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To A, Bhattacharyya S, Christiansen J, Edwards C, Hart H, Cranefield D, Wickham J. CTCA availability does not lead to inappropriate referrals - insights from the Waitemata District Health Board experience from 2011. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.04.093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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104
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Sarkar A, Karmakar S, Bhattacharyya S, Purkait K, Mukherjee A. Nitric oxide release by N-(2-chloroethyl)-N-nitrosoureas: a rarely discussed mechanistic path towards their anticancer activity. RSC Adv 2015. [DOI: 10.1039/c4ra11137k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Our work shows that NO release is a feasible pathway of action for aromatic and heterocyclic N-(2-chloroethyl)-N-nitrosoureas and faster NO release may not lead to higher cytotoxicity.
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105
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Bhattacharyya S, Roskruge M, Sidhu K, Nair R, Smyth D, Webster M, Ruygrok P, Ormiston J, Pasupati S. National multi-centre cost-comparison of trans-catheter aortic valve implantation (TAVI) versus surgical aortic valve replacement (SAVR) in moderate to high-risk patients with severe symptomatic aortic stenosis in New Zealand (NZ). Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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106
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To A, Christiansen J, Bhattacharyya S, Edwards C, Hart H, Cranefield D, Wickham J. The three distinct roles of CT coronary angiography in chest pain diagnostic pathways – the Waitemata District Health Board experience. Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.04.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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107
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To A, Edwards C, Bhattacharyya S, Christiansen J, Hart H, Cranefield D, Wickham J. CTCA in the elderly - gatekeeper to invasive angiography or wasted effort? Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.04.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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108
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Jain M, Bhattacharyya S, Gupta S, Sonathi V, Mahon R, Malakar H, Vudumala U, Gunda P, Kumar P, Partha G, Thomas SK. How Does Uncertainty Around Costs And Effects Relate To Uncertainty Around Cost-Effectiveness? VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A561-A562. [PMID: 27201854 DOI: 10.1016/j.jval.2014.08.1858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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109
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Leteneux C, Haig J, Xue W, Bhattacharyya S. Ranibizumab for the Treatment of Visual Impairment Due to Myopic Choroidal Neovascularization: Cost-Effectiveness Versus Aflibercept. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A608. [PMID: 27202113 DOI: 10.1016/j.jval.2014.08.2123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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110
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Gopmandal PP, Bhattacharyya S, Barman B. Effect of induced electric field on migration of a charged porous particle. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2014; 37:104. [PMID: 25374308 DOI: 10.1140/epje/i2014-14104-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 09/02/2014] [Accepted: 09/15/2014] [Indexed: 06/04/2023]
Abstract
The effect of ambient fluid flow on a charged porous spherical particle suspended in an aqueous medium is analyzed. The porous particle is ion permeable and fluid penetrable. The induced electric field due to the polarization of the particle's electric double layer and counterion condensation leads to a hindrance effect on particle migration by producing an electric force. The influence of this retardation force on the hydrodynamics of the particle is studied through the Nernst-Planck equations, which are coupled with the Stokes-Brinkman equation. The interactions of the double-layer polarization, shielding effect, electroosmosis of unbalanced ions and fluid convection are analyzed. The settling velocity and fluid collection efficiency of the charged aggregate is determined. We have studied the electrokinetics for a wide range of fixed charge density and permeability of the particle with no assumption made on the thickness of the double layer relative to the dimension of the particle.
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111
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Gupta S, Bhattacharyya S, Sonathi V, Bakuli A, Mathur AK, Leteneux C. Transition Probability Estimation Using Repeated Sampling from a Fitted Mixed Model. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2014; 17:A326. [PMID: 27200545 DOI: 10.1016/j.jval.2014.08.586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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112
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Bhattacharyya S, Iyegbe C, Atakan Z, Martin-Santos R, Crippa JA, Xu X, Williams S, Brammer M, Rubia K, Prata D, Collier DA, McGuire PK. Protein kinase B (AKT1) genotype mediates sensitivity to cannabis-induced impairments in psychomotor control. Psychol Med 2014; 44:3315-3328. [PMID: 25065544 DOI: 10.1017/s0033291714000920] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND What determines inter-individual variability to impairments in behavioural control that may underlie road-traffic accidents, and impulsive and violent behaviours occurring under the influence of cannabis, the most widely used illicit drug worldwide? METHOD Employing a double-blind, repeated-measures design, we investigated the genetic and neural basis of variable sensitivity to cannabis-induced behavioural dyscontrol in healthy occasional cannabis users. Acute oral challenge with placebo or Δ9-tetrahydrocannabinol (THC), the main psychoactive ingredient in cannabis, was combined with functional magnetic resonance imaging, while participants performed a response inhibition task that involved inhibiting a pre-potent motor response. They were genotyped for rs1130233 single nucleotide polymorphisms (SNPs) of the protein kinase B (AKT1) gene. RESULTS Errors of inhibition were significantly (p = 0.008) increased following administration of THC in carriers of the A allele, but not in G allele homozygotes of the AKT1 rs1130233 SNP. The A allele carriers also displayed attenuation of left inferior frontal response with THC evident in the sample as a whole, while there was a modest enhancement of inferior frontal activation in the G homozygotes. There was a direct relationship (r = -0.327, p = 0.045) between the behavioural effect of THC and its physiological effect in the inferior frontal gyrus, where AKT1 genotype modulated the effect of THC. CONCLUSIONS These results require independent replication and show that differing vulnerability to acute psychomotor impairments induced by cannabis depends on variation in a gene that influences dopamine function, and is mediated through modulation of the effect of cannabis on the inferior frontal cortex, that is rich in dopaminergic innervation and critical for psychomotor control.
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113
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Dutta A, Bhattacharyya S, Dutta D, Das AK. Structural elucidation of the binding site and mode of inhibition of Li+and Mg2+in inositol monophosphatase. FEBS J 2014; 281:5309-24. [PMID: 25263816 DOI: 10.1111/febs.13070] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 09/16/2014] [Accepted: 09/23/2014] [Indexed: 01/20/2023]
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114
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Bhattacharyya S, Kumar D. Small colony variants of Staphylococcus aureus: enemies with hidden weapons. Indian J Med Microbiol 2014; 32:460-1. [PMID: 25297043 DOI: 10.4103/0255-0857.142237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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115
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Bhattacharyya S, Kim M. Cervical spine fracture associated with ankylosing spondylitis. Neurology 2014; 83:1297. [DOI: 10.1212/wnl.0000000000000833] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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116
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Valmaggia LR, Day FL, Jones C, Bissoli S, Pugh C, Hall D, Bhattacharyya S, Howes O, Stone J, Fusar-Poli P, Byrne M, McGuire PK. Cannabis use and transition to psychosis in people at ultra-high risk. Psychol Med 2014; 44:2503-2512. [PMID: 25055169 DOI: 10.1017/s0033291714000117] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND Cannabis use is associated with an increased risk of developing a psychotic disorder but the temporal relationship between cannabis use and onset of illness is unclear. The objective of this study was to assess prospectively the influence of cannabis use on transition to psychosis in people at ultra-high risk (UHR) for the disorder. METHOD Lifetime and continued cannabis use was assessed in a consecutively ascertained sample of 182 people (104 male, 78 female) at UHR for psychosis. Individuals were then followed clinically for 2 years to determine their clinical outcomes. RESULTS Lifetime cannabis use was reported by 134 individuals (73.6%). However, most of these individuals had stopped using cannabis before clinical presentation (n=98, 73.1%), usually because of adverse effects. Among lifetime users, frequent use, early-onset use and continued use after presentation were all associated with an increase in transition to psychosis. Transition to psychosis was highest among those who started using cannabis before the age of 15 years and went on to use frequently (frequent early-onset use: 25%; infrequent or late-onset use: 5%; χ(2)1=10.971, p=0.001). However, within the whole sample, cannabis users were no more likely to develop psychosis than those who had never used cannabis (cannabis use: 12.7%; no use: 18.8%; χ(2)1=1.061, p=0.303). CONCLUSIONS In people at UHR for psychosis, lifetime cannabis use was common but not related to outcome. Among cannabis users, frequent use, early-onset use and continued use after clinical presentation were associated with transition to psychosis.
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117
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Bhattacharyya S, Sarkar A, Dey SK, Mukherjee A. Effect of glucosamine conjugation to zinc(II) complexes of a bis-pyrazole ligand: syntheses, characterization and anticancer activity. J Inorg Biochem 2014; 140:131-42. [PMID: 25113858 DOI: 10.1016/j.jinorgbio.2014.07.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 07/09/2014] [Accepted: 07/10/2014] [Indexed: 10/25/2022]
Abstract
The bis(3,5-dimethyl-1H- pyrazol-1yl)acetic acid (bdmpza) ligand was conjugated with tert-butyl-N-(2-aminoethyl) carbonate, methyl-2-amino-4-(methylthio)butanoate and 1,3,4,6-tetra-O-acetyl-β-d-glucosamine hydrochloride via amide coupling method to form three ligands L1-L3 which were then reacted with Zn(II) salts to form four zinc complexes (1-4). The complexes were characterized by (1)H NMR, (13)C NMR, electrospray ionization mass spectrometry (ESI-MS), FT-IR, CHN analyses. Complexes 1, 2 and 4 were also characterized by single crystal X-ray diffraction. It was found that Zn(II) salts could selectively remove the acetyl group from anomeric position leaving everything else intact. The cytotoxicity studies of the ligand and the complexes showed that the conjugation to acetylated glucosamine enhances cytotoxic ability although the complexes become more hydrophilic. Cytotoxicity studies in human breast adenocarcinoma (MCF-7), human cervical cancer (HeLa WT) and human lung adenocarcinoma (A549) showed that the acetylated glucosamine conjugation to the bis-pyrazole ligated Zn(II) complex led to 2-4 fold increase in cytotoxicity (IC50 values ca. 57-80μM) against HeLa WT and MCF-7 cell lines. The Zn(II) complex bearing the acetylated glucosamine inhibits the cell cycle in the G2/M phase of MCF-7 cell line. ICP-MS data shows more accumulation of Zn(II) inside the cell upon use of complex 4 as compared to Zn(II) salts or the other presented complexes. Further studies suggest that the mitochondrial transmembrane potential changes in the presence of complex 4 and caspase-7 is activated by Zn(II) salts but the activation is much more by complex 4 and hence there is apoptosis and dose dependent chromatin condensation/nuclear fragmentation as observed by microscopy.
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118
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Bhattacharyya S, Berkowitz AL, Jha RM. Clinical Reasoning: A 24-year-old woman with progressive headache and somnolence. Neurology 2014; 82:e188-93. [DOI: 10.1212/wnl.0000000000000469] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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119
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Batalla A, Crippa J, Busatto G, Guimaraes F, Zuardi A, Valverde O, Atakan Z, McGuire P, Bhattacharyya S, Martín-Santos R. Neuroimaging Studies of Acute Effects of THC and CBD in Humans and Animals: a Systematic Review. Curr Pharm Des 2014; 20:2168-85. [DOI: 10.2174/13816128113199990432] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Accepted: 06/10/2013] [Indexed: 11/22/2022]
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120
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Bhattacharyya S, James R, Rimington H, Allen J, Lee L, Fox K, Masani ND, Lloyd G. Development of a National Echocardiography Quality Improvement Programme: insights into feasibility, uptake, and clinical utility. Eur Heart J Cardiovasc Imaging 2014; 15:747-52. [DOI: 10.1093/ehjci/jet280] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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121
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Bhattacharyya S, Banerjee D, Das SK, Bhattacharya S, Das Gupta S, Mukherjee G, Bhattacharjee T, Chowdhury A, Das P, Guin R, Pai H. Lifetime measurements and decay spectroscopy of 132I. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146602009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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122
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Batalla A, Fagundo A, Blanco-Hinojo L, Soriano-Mas C, Navinés R, Farré M, Udina M, De la Torre R, Bhattacharyya S, Crippa J, Pujol J, Torrens M, Martín-Santos R. EPA-1084 - Catechol o-methyltransferase val158met genotype and neural mechanisms related to response inhibition in chronic cannabis users. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78362-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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123
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Sarkar A, Bhattacharyya S, Dey SK, Karmakar S, Mukherjee A. Structure and properties of metal complexes of a pyridine based oxazolidinone synthesized by atmospheric CO2 fixation. NEW J CHEM 2014. [DOI: 10.1039/c3nj00990d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Copper, platinum and palladium complexes of an oxazolidinone ligand show potential in catalysis or cytotoxicity, depending on the metal incorporated.
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124
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Banerjee DR, Dutta D, Saha B, Bhattacharyya S, Senapati K, Das AK, Basak A. Design, synthesis and characterization of novel inhibitors against mycobacterial β-ketoacyl CoA reductase FabG4. Org Biomol Chem 2014; 12:73-85. [DOI: 10.1039/c3ob41676c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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125
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Pai H, Mukherjee G, Bhattacharya S, Bhattacharya C, Bhattacharyya S, Bhattacharjee T, Chanda S, Rajbanshi S, Goswami A, Gohil MR, Kundu S, Ghosh TK, Banerjee K, Rana TK, Pandey R, Prajapati GK, Banerjee SR, Mukhopadhyay S, Pandit D, Pal S, Meena J, Mukhopadhyay P, Choudhury A. Identification of intruder πi13/2state in 197Tl. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146602079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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