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Sonwani R, Giri B, Das T, Singh R, Rai B. Biodegradation of fluorene by neoteric LDPE immobilized Pseudomonas pseudoalcaligenes NRSS3 in a packed bed bioreactor and analysis of external mass transfer correlation. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.11.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Singha D, Das T, Satyanarayana L, Roy P, Nandi M. Rhodamine functionalized mesoporous silica as a chemosensor for the efficient sensing of Al3+, Cr3+ and Fe3+ ions and their removal from aqueous media. NEW J CHEM 2019. [DOI: 10.1039/c9nj03010g] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Rhodamine incorporated mesoporous silica acts as a selective chemosensor for Al3+, Cr3+ and Fe3+ ions and it is used for their separation from an aqueous medium.
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Elmushraf R, Clinch H, Salawu A, Fisher P, Young R, Lee C, Danson S, Bates E, Hatton M, Low L, Das T, Taylor F. The North Trent experience of the use of first line pembrolizumab in stage IIIB/IV non-small cell lung cancer. Lung Cancer 2019. [DOI: 10.1016/s0169-5002(19)30145-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Das T, Bartschat K, Bray I, Fursa D, Zatsarinny O, Ballance C, Chung HK, Ralchenko Y. Recommended electron-impact excitation and ionization cross sections for Be I. ATOMIC DATA AND NUCLEAR DATA TABLES 2019; 127-128:10.1016/j.adt.2018.11.001. [PMID: 32116394 PMCID: PMC7047829 DOI: 10.1016/j.adt.2018.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Analytic fits to the recommended electron-impact excitation and ionization cross sections for Be I are presented. The lowest 19 terms of configurations 2snl (n ≤ 4) and 2p 2 terms below the first ionization limit are considered. The fits are based on the accurate calculations with the convergent close coupling (CCC) method as well as the B-spline R-matrix (BSR) approach. The fitted cross sections provide rate coefficients that are believed to approximate the original data within 10% with very few exceptions. The oscillator strengths for the dipole-allowed transitions between all the considered states are calculated with the relativistic multi-configuration Dirac-Hartree-Fock (MCDHF) approach and compared with the CCC and BSR results. This comparison shows a very good agreement except for a handful of cases with likely strong cancellations.
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Das T, Chatterjee R, Majee A, Uyama H, Morgan D, Nandi M. In situ synthesis of CuO nanoparticles over functionalized mesoporous silica and their application in catalytic syntheses of symmetrical diselenides. Dalton Trans 2019; 48:17874-17886. [DOI: 10.1039/c9dt03418h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A versatile and novel mesoporous silica supported CuO nanoparticle catalyst (nCuO-FMS) and its application in the syntheses of symmetrical diselenides.
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Robinson S, Tahir B, Absalom K, Tripathi D, Fisher P, Das T, Lee C, Bates E, Hatton M. P1.17-05 Accelerated Radiotherapy for Non-Small Cell Lung Cancer: A 12 Year Retrospective Review of Two Dose Fractionation Schedules. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1038] [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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Das T, Alabi I, Colley M, Yan F, Griffith W, Bach S, Weintraub ST, Renthal R. Major venom proteins of the fire ant Solenopsis invicta: insights into possible pheromone-binding function from mass spectrometric analysis. INSECT MOLECULAR BIOLOGY 2018; 27:505-511. [PMID: 29656567 PMCID: PMC6188847 DOI: 10.1111/imb.12388] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Proteins in the venom of the fire ant Solenopsis invicta have been suggested to function in pheromone binding. Venom from queens and workers contains different isoforms of these proteins, consistent with the differing pheromones they secrete, but questions remain about the venom protein composition and glandular source. We found that the queen venom contains a previously uncharacterized pheromone-binding protein paralogue known as Sol i 2X1. Using imaging mass spectrometry, we located the main venom proteins in the poison sac, implying that pheromones might have to compete with venom alkaloids for binding. Using the known structure of the worker venom protein Sol i 2w, we generated three-dimensional homology models of the worker venom protein Sol i 4.02, and of the two main venom proteins in queens and female alates, Sol i 2q and Sol i 2X1. Surprisingly, the models show that the proteins have relatively small internal hydrophobic binding pockets that are blocked by about 10 amino acids of the C-terminal region. For these proteins to function as carriers of hydrophobic ligands, a conformational change would be required to displace the C-terminal region, somewhat like the mechanism known to occur in the silk moth pheromone-binding protein.
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Das T, Uyama H, Nandi M. Pd-bound functionalized mesoporous silica as active catalyst for Suzuki coupling reaction: Effect of OAcˉ, PPh3 and Clˉ ligands on catalytic activity. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.01.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Hatton M, Robinson S, Bradshaw J, Riley S, Das T, Lee C, Fisher P, Bates E, Tozer-Loft S, Tahir B. 111O Impact of cardiac doses on survival of non-small cell lung cancer (NSCLC) patients following radical accelerated radiotherapy. J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30385-x] [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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Sanganalmath P, Lester JE, Bradshaw AG, Das T, Esler C, Roy AEF, Toy E, Lester JF, Button M, Wilson P, Comins C, Atherton P, Pickles R, Foweraker K, Walker GA, Keni M, Hatton MQ. Continuous Hyperfractionated Accelerated Radiotherapy (CHART) for Non-small Cell Lung Cancer (NSCLC): 7 Years' Experience From Nine UK Centres. Clin Oncol (R Coll Radiol) 2018; 30:144-150. [PMID: 29336865 DOI: 10.1016/j.clon.2017.12.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 08/27/2017] [Accepted: 11/06/2017] [Indexed: 01/15/2023]
Abstract
AIM Continuous hyperfractionated accelerated radiotherapy (CHART) remains an option to treat non-small cell lung cancer (NSCLC; NICE, 2011). We have previously published treatment outcomes from 1998-2003 across five UK centres. Here we update the UK CHART experience, reporting outcomes and toxicities for patients treated between 2003 and 2009. MATERIALS AND METHODS UK CHART centres were invited to participate in a retrospective data analysis of NSCLC patients treated with CHART from 2003 to 2009. Nine (of 14) centres were able to submit their data into a standard database. The Kaplan-Meier method estimated survival and the Log-rank test analysed the significance. RESULTS In total, 849 patients had CHART treatment, with a median age of 71 years (range 31-91), 534 (63%) were men, 55% had undergone positron emission tomography-computed tomography (PET-CT) and 26% had prior chemotherapy; 839 (99%) patients received all the prescribed treatment. The median overall survival was 22 months with 2 and 3 year survival of 47% and 32%, respectively. Statistically significant differences in survival were noted for stage IA versus IB (33.2 months versus 25 months; P = 0.032) and IIIA versus IIIB (20 months versus 16 months; P = 0.018). Response at 3 months and outcomes were significantly linked; complete response showing survival of 34 months against 19 months, 15 months and 8 months for partial response, stable and progressive disease, respectively (P < 0.001). Age, gender, performance status, prior chemotherapy and PET-CT did not affect the survival outcomes. Treatment was well tolerated with <5% reporting ≥grade 3 toxicity. CONCLUSION In routine practice, CHART results for NSCLC remain encouraging and we have been able to show an improvement in survival compared with the original trial cohort. We have confirmed that CHART remains deliverable with low toxicity rates and we are taking a dose-escalated CHART regimen forward in a randomised phase II study of sequential chemoradiotherapy against other accelerated dose-escalated schedules.
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Kumar D, Das T, Giri BS, Verma B. Characterization and compositional analysis of highly acidic karanja oil and its potential feedstock for enzymatic synthesis of biodiesel. NEW J CHEM 2018. [DOI: 10.1039/c8nj03084g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present study, we focused on the synthesis of biodiesel fromPseudomonas cepacia, crude karanja oil by the process of enzymatic transesterification using bio-support materials, such as lipase immobilized on polyvinyl alcohol/AlgNa.
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Garikipati S, Prakash A, Alhilali M, Burnett A, Lee C, Young R, Danson S, Bates E, Fisher P, Hatton M, Das T. Management and outcomes of patients with small cell lung cancer in North Trent. Lung Cancer 2018. [DOI: 10.1016/s0169-5002(18)30194-6] [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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Robinson S, Absalom K, Das T, Lee C, Fisher P, Bates E, Hatton M. Post-operative radiotherapy (PORT) for incompletely resected non-small cell lung cancer (NSCLC): single centre audit of outcomes. Lung Cancer 2018. [DOI: 10.1016/s0169-5002(18)30180-6] [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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Low L, Salawu A, Bates E, Young R, Danson S, Fisher P, Hatton M, Lee C, Das T, Taylor F. The North Trent experience of administering pembrolizumab to previously treated patients with advanced non-small cell lung cancer. Lung Cancer 2018. [DOI: 10.1016/s0169-5002(18)30110-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Das T, Uyama H, Nandi M. Pronounced effect of pore dimension of silica support on Pd-catalyzed Suzuki coupling reaction under ambient conditions. NEW J CHEM 2018. [DOI: 10.1039/c8nj00254a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The pore size of the mesoporous silica support affects the reactivity of heterogeneous palladium catalysts in the Suzuki reaction under ambient conditions, which is leveled at higher temperature.
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Robinson S, Absalom K, Lankathilake A, Das T, Lee C, Fisher P, Bates E, Hatton M. Radical radiotherapy for non-small cell lung cancer (NSCLC): real world outcomes for two accelerated fractionation schedules. Lung Cancer 2018. [DOI: 10.1016/s0169-5002(18)30189-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bhattacharjee A, Das T, Uyama H, Roy P, Nandi M. Cu- and Ni-Grafted Functionalized Mesoporous Silica as Active Catalyst for Olefin Oxidation. ChemistrySelect 2017. [DOI: 10.1002/slct.201702183] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Bhardwwaj P, Batra S, Dhopte S, Das T. Fibroid Degeneration - Myriad Presentation and Laparoscopic Management. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li M, Das T, Deng W, Wang Q, Li Y, Zhao L, Ma X, Wang Y, Yu H, Li X, Meng Y, Palaniyappan L, Li T. Clinical utility of a short resting-state MRI scan in differentiating bipolar from unipolar depression. Acta Psychiatr Scand 2017; 136:288-299. [PMID: 28504840 DOI: 10.1111/acps.12752] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/18/2017] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Depression in bipolar disorder (BipD) requires a therapeutic approach that is from treating unipolar major depressive disorder (UniD), but to date, no reliable methods could separate these two disorders. The aim of this study was to establish the clinical validity and utility of a non-invasive functional MRI-based method to classify BipD from UniD. METHOD The degree of connectivity (degree centrality or DC) of every small unit (voxel) with every other unit of the brain was estimated in 22 patients with BipD and 22 age, gender, and depressive severity-matched patients with UniD and 22 healthy controls. Pattern classification analysis was carried out using a support-vector machine (SVM) approach. RESULTS Degree centrality pattern from 8-min resting fMRI discriminated BipD from UniD with an accuracy of 86% and diagnostic odds ratio of 9.6. DC was reduced in the left insula and increased in bilateral precuneus in BipD when compared to UniD. In this sample with a high degree of uncertainty (50% prior probability), positive predictive value of the DC test was 79%. CONCLUSION Degree centrality maps are potential candidate measures to separate bipolar depression from unipolar depression. Test performance reported here requires further pragmatic evaluation in regular clinical practice.
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Goyal P, Padhi TR, Das T, Pradhan L, Sutar S, Butola S, Behera UC, Jain L, Jalali S. Outcome of universal newborn eye screening with wide-field digital retinal image acquisition system: a pilot study. Eye (Lond) 2017; 32:67-73. [PMID: 28737759 DOI: 10.1038/eye.2017.129] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 04/27/2017] [Indexed: 12/25/2022] Open
Abstract
PurposeTo evaluate the outcome of universal newborn eye screening with wide-field digital retinal imaging (WFDRI) system.MethodsIn this pilot study, we examined 1152 apparently healthy newborn infants in the obstetrics and gynecology ward of a civil hospital in Eastern India over 1.5 years. The examination included external eye examination, red reflex test and fundus imaging by WFDRI (RetCam II, Clarity medical system, Pleasanton, CA, USA) by a trained optometrist. The pathologies detected, net monetary gain and skilled manpower saved were documented. The results were compared with three similar studies thus far published in the literature.ResultsOcular abnormality of any kind was seen in 172 (14.93%) babies. Retinal hemorrhage in 153 babies (88.9% of all abnormal findings) was the most common abnormality; it was bilateral in 118 (77.12%) babies and 4 babies had foveal hemorrhage. Other abnormalities included vitreous hemorrhage (n=1), congenital glaucoma (n=2), uveal coloboma (n=2), retinopathy mimicking retinopathy of prematurity (n=2), and cystic fovea (n=3). The retinal hemorrhages resolved spontaneously in all eyes. One baby with congenital glaucoma received surgery and the other was treated medically. The benefits included savings in skilled manpower, a net monetary gain of INR 4.195 million (US$ 62,612) and skilled manpower saving by 319.4 h.ConclusionsThe universal neonatal eye screening using WFDRI detected pathologies that needed immediate care or regular follow up; saved skilled manpower with a net monetary gain. But compared to a red reflex test the benefits were marginal in terms of detecting treatment warranting ocular pathologies.
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Fatema K, Das T, Mannan A, Zaman SM. Frequency, Distribution of Congenital Anomaly and Associated Maternal Risk Factors. Mymensingh Med J 2017; 26:658-666. [PMID: 28919624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study was done to find out the maternal risk factors associated with congenital anomaly. This cross-sectional observational study was carried out in the Department of Obstetrics and Gynaecology, Bangabandhu Sheikh Mujib Medical University (BSMMU) Hospital, Dhaka, Bangladesh from January 2011 to December 2011. During this study period 78 patients had pregnancy with congenital anomaly and delivered in the Department of Obstetrics and Gynaecology. Women with ultrasound report of congenitally abnormal fetus irrespective of gestational age were included. Clinical evaluation of neonates was done by experienced neonatologist. The frequency of congenital anomaly was 3.46%. Most of the women belong to age <35 years (97.43%). Congenital anomalies more commonly were seen in the primiparas (64.10%). Most frequent associated risk factor was the history of abortions (35.89%). Maternal infections during antenatal period were also high (15.58%). There were 58 males (74.35%) and 20 females (25.64%). There was positive history of delivery of congenital abnormal babies in 6 cases (7.6%). Mothers of eight cases (10.25%) had history of drug ingestion during pregnancy. Four cases (5.12%) of mothers had hypothyroidism and 6 cases of mothers (7.69%) had diabetes mellitus respectively.
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Das T, Roy A, Uyama H, Roy P, Nandi M. 2-Hydroxy-naphthyl functionalized mesoporous silica for fluorescence sensing and removal of aluminum ions. Dalton Trans 2017; 46:7317-7326. [DOI: 10.1039/c7dt00369b] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
2-Hydroxy-naphthyl functionalized mesoporous silica has been used as a turn-on fluorescent chemosensor for Al3+ and used to remove it with high efficiency.
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Kakoudaki M, Marshall R, Danson S, Fisher P, Hatton M, Lee C, Das T, Bates E, Woll P, Taylor F. 67: Outcomes of patients in South Yorkshire who received maintenance pemetrexed treatment for non-squamous, non-small-cell cancer after induction chemotherapy with pemetrexed and cisplatin. Lung Cancer 2017. [DOI: 10.1016/s0169-5002(17)30117-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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John JK, Sethi M, Das T, Hingade SS, Arun A, Tomar N, Saikumar G. Occurrence of Opisthorchis spp. infection in liver of pigs: An abattoir survey. ACTA ACUST UNITED AC 2017. [DOI: 10.5958/0973-970x.2017.00031.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Adhikari UR, Taraphder A, Hazra A, Das T. Medication Adherence in Kidney Transplant Recipients in an Urban Indian Setting. Indian J Nephrol 2017; 27:294-300. [PMID: 28761232 PMCID: PMC5514826 DOI: 10.4103/0971-4065.202835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Medication nonadherence is a known problem after renal transplantation and can vary from one setting to another. Since it can lead to negative outcomes, it is important to develop intervention strategies to enhance adherence in a given setting using determinants identified through exploratory studies. We explored nonadherence in renal transplant recipients. A longitudinal survey was done with adult renal transplant recipients at a tertiary care public and two private hospitals of Kolkata. Subjects were followed-up for 1 year. After screening for medication adherence status by the four-item Morisky Medication Adherence Scale, those admitting to potential nonadherence were probed further. A patient was deemed to be nonadherent if failing to take medicines on appointed time (doses missed or delayed by more than 2 h) more than three times in any month during the observation period. A pretested questionnaire was used to explore potential determinants of nonadherence. Data of 153 patients recruited over a 2-year were analyzed. The extent of nonadherence with immunosuppressant regimens was about 31% overall; 44% in the public sector and 19% in the private sector (P < 0.001). Nonadherence with other medication was around 19% in both the sectors. Several potential demographic, socioeconomic and psychosocial determinants of nonadherence were identified on univariate analysis. However, logistic regression analysis singled out only the economic status. This study had updated the issue of nonadherence in renal transplant recipients in the Indian setting. Strategies to improve medication adherence can be planned by relevant stakeholders on the basis of these findings.
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