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Roy S, Nag Chowdhury S, Kundu S, Sar GK, Banerjee J, Rakshit B, Mali PC, Perc M, Ghosh D. Time delays shape the eco-evolutionary dynamics of cooperation. Sci Rep 2023; 13:14331. [PMID: 37653103 PMCID: PMC10471784 DOI: 10.1038/s41598-023-41519-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/28/2023] [Indexed: 09/02/2023] Open
Abstract
We study the intricate interplay between ecological and evolutionary processes through the lens of the prisoner's dilemma game. But while previous studies on cooperation amongst selfish individuals often assume instantaneous interactions, we take into consideration delays to investigate how these might affect the causes underlying prosocial behavior. Through analytical calculations and numerical simulations, we demonstrate that delays can lead to oscillations, and by incorporating also the ecological variable of altruistic free space and the evolutionary strategy of punishment, we explore how these factors impact population and community dynamics. Depending on the parameter values and the initial fraction of each strategy, the studied eco-evolutionary model can mimic a cyclic dominance system and even exhibit chaotic behavior, thereby highlighting the importance of complex dynamics for the effective management and conservation of ecological communities. Our research thus contributes to the broader understanding of group decision-making and the emergence of moral behavior in multidimensional social systems.
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Affiliation(s)
- Sourav Roy
- Department of Mathematics, Jadavpur University, Kolkata, 700032, India
| | - Sayantan Nag Chowdhury
- Department of Environmental Science and Policy, University of California, Davis, CA, 95616, USA
| | - Srilena Kundu
- Department of Ecology & Evolution, University of Chicago, Chicago, IL, 60637, USA
| | - Gourab Kumar Sar
- Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata, 700108, India
| | - Jeet Banerjee
- BYJU'S, Think & Learn Pvt. Ltd., IBC Knowledge Park, 4/1 Bannerghatta Main Road, Bangalore, 560029, India
| | - Biswambhar Rakshit
- Department of Mathematics, Amrita School of Physical Sciences, Amrita Vishwa Vidyapeetham, Coimbatore, 641112, India
| | | | - Matjaž Perc
- Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, 2000, Maribor, Slovenia
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 404332, Taiwan
- Alma Mater Europaea, Slovenska ulica 17, 2000, Maribor, Slovenia
- Complexity Science Hub Vienna, Josefstädterstraße 39, 1080, Vienna, Austria
- Department of Physics, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Dibakar Ghosh
- Physics and Applied Mathematics Unit, Indian Statistical Institute, Kolkata, 700108, India.
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Murphy C, Baskind S, Aladangady N, Banerjee J. Measuring gut perfusion and blood flow in neonates using ultrasound Doppler of the superior mesenteric artery: a narrative review. Front Pediatr 2023; 11:1154611. [PMID: 37601136 PMCID: PMC10433905 DOI: 10.3389/fped.2023.1154611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 05/02/2023] [Indexed: 08/22/2023] Open
Abstract
The gut is a relatively silent organ in utero but takes on a major role after birth for the absorption and digestion of feed for adequate nutrition and growth. The neonatal circulation undergoes a transition period after birth, and gut perfusion increases rapidly to satisfy the oxygen demand and consumption. If this process is compromised at any stage, preterm and fetal growth restricted infants are at particular risk of gut tissue injury secondary to hypoxia, leading to necrotizing enterocolitis. Feeding can also be a challenge in these high-risk groups due to gut dysmotility. Superior mesenteric artery (SMA) Doppler is a safe, bedside investigation that could rapidly aid clinicians with feeding strategies and in monitoring high-risk infants. This article aims to establish normal patterns of gut blood flow velocity in neonates using SMA Doppler and reviews how it might be used clinically in pathologic states.
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Affiliation(s)
- C. Murphy
- Neonatal Intensive Care Unit, Homerton Healthcare NHS Foundation Trust, London, United Kingdom
- Neonatal Intensive Care Unit, Queen Mary University of London, London, United Kingdom
| | - S. Baskind
- Neonatal Intensive Care Unit, Homerton Healthcare NHS Foundation Trust, London, United Kingdom
| | - N. Aladangady
- Neonatal Intensive Care Unit, Homerton Healthcare NHS Foundation Trust, London, United Kingdom
- Neonatal Intensive Care Unit, Queen Mary University of London, London, United Kingdom
| | - J. Banerjee
- Neonatal Intensive Care Unit, Imperial College Healthcare NHS Trust, London, United Kingdom
- Neonatal Intensive Care Unit, Imperial College London, London, United Kingdom
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Nag Chowdhury S, Banerjee J, Perc M, Ghosh D. Eco-evolutionary cyclic dominance among predators, prey, and parasites. J Theor Biol 2023; 564:111446. [PMID: 36868345 DOI: 10.1016/j.jtbi.2023.111446] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 02/24/2023] [Accepted: 02/25/2023] [Indexed: 03/05/2023]
Abstract
Predator-prey interactions are one of ecology's central research themes, but with many interdisciplinary implications across the social and natural sciences. Here we consider an often-overlooked species in these interactions, namely parasites. We first show that a simple predator-prey-parasite model, inspired by the classical Lotka-Volterra equations, fails to produce a stable coexistence of all three species, thus failing to provide a biologically realistic outcome. To improve this, we introduce free space as a relevant eco-evolutionary component in a new mathematical model that uses a game-theoretical payoff matrix to describe a more realistic setup. We then show that the consideration of free space stabilizes the dynamics by means of cyclic dominance that emerges between the three species. We determine the parameter regions of coexistence as well as the types of bifurcations leading to it by means of analytical derivations as well as by means of numerical simulations. We conclude that the consideration of free space as a finite resource reveals the limits of biodiversity in predator-prey-parasite interactions, and it may also help us in the determination of factors that promote a healthy biota.
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Affiliation(s)
- Sayantan Nag Chowdhury
- Department of Environmental Science and Policy, University of California, Davis, CA 95616, USA
| | - Jeet Banerjee
- BYJU'S, Think & Learn Pvt. Ltd., IBC Knowledge Park, 4/1 Bannerghatta Main Road, Bangalore 560029, India
| | - Matjaž Perc
- Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, 2000 Maribor, Slovenia; Alma Mater Europaea, Slovenska ulica, 17, 2000 Maribor, Slovenia; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan; Complexity Science Hub Vienna, Josefstädterstraße 39, 1080 Vienna, Austria; Department of Physics, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, Republic of Korea
| | - Dibakar Ghosh
- Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B.T. Road, Kolkata 700108, India.
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Sharma B, Roy A, Sharma MC, Banerjee J, Netam RK, Nag TC, Akhtar N, Mallick HN. 1146 SLEEP DEPRIVATION INDUCES AGEING-LIKE CHANGES IN ANTIGRAVITY MUSCLES OF YOUNG ADULT MALE WISTAR RATS. Age Ageing 2023. [DOI: 10.1093/ageing/afac322.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Abstract
Introduction
Poor muscle health is associated with a series of chronic and metabolic conditions that are prevalent in individuals who chronically experience poor-quality sleep. But there is no study deciphering the role of sleep deprivation on muscle ageing. Therefore, in the present study we have measured the ultrastructure, histopathology, and oxidative stressors in soleus muscle of wistar rat after sleep deprivation and recovery sleep.
Material and Methods
The experiments were conducted in 18 rats of three groups. Group I rats had normal sleep wake cycle, Group II rats were subjected to 24 h sleep deprivation (SD) by gentle handling method1 and Group III rats had recovery sleep after 24 h SD. At the end of the sleep, sleep deprivation and recovery period, soleus muscle tissue was collected for ultrastructural, histological and oxidative stress markers. Oxidative damage was assessed by lipid peroxidation, catalase activity, reduced glutathione and nuclear labelling of 8-OHdG. The study was conducted as per the guidelines of the Institutional Animal Ethics Committee (960/IAEC/16).
Results
The data demonstrated that SD leads to ultrastructural changes in soleus muscle which includes sarcolemmal and mitochondrial alterations. In case of histopathological and histomorphological changes there was signs of tissue degeneration, inflammatory infiltrate in type I fibres and muscle atrophy was observed in soleus muscles. There was significant increase in level of 8-OHdG (p=0.02) and malondialdehyde in 24h SD (p=0.02) than control and recovery sleep groups. Moreover, the catalase activity and reduced glutathione level was significantly decreased in 24h SD group (p≤0.02) than control and recovery sleep.
Conclusion
24hr sleep deprivation leads to an ageing like state in the skeletal muscle, which was recovered after sleep rebound.
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Affiliation(s)
- B Sharma
- All India Institute of Medical Sciences Department of Physiology; , New Delhi
| | - A Roy
- All India Institute of Medical Sciences Department of Physiology; , New Delhi
| | - M C Sharma
- All India Institute of Medical Sciences Department of Pathology; , New Delhi
| | - J Banerjee
- All India Institute of Medical Sciences Department of Biophysics; , New Delhi
| | - R K Netam
- All India Institute of Medical Sciences Department of Physiology; , New Delhi
| | - T C Nag
- All India Institute of Medical Sciences Department of Anatomy; , New Delhi
| | - N Akhtar
- All India Institute of Medical Sciences Department of Physiology; , New Delhi
| | - H N Mallick
- Shree Guru Gobind Singh Tricentenary University , Gurugram, India
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Mullins E, Perry A, Banerjee J, Townson J, Grozeva D, Milton R, Kirby N, Playle R, Bourne T, Lees C. Pregnancy and neonatal outcomes of COVID-19: The PAN-COVID study. Eur J Obstet Gynecol Reprod Biol 2022; 276:161-167. [PMID: 35914420 PMCID: PMC9295331 DOI: 10.1016/j.ejogrb.2022.07.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/15/2022] [Accepted: 07/14/2022] [Indexed: 12/16/2022]
Abstract
OBJECTIVE To assess perinatal outcomes for pregnancies affected by suspected or confirmed SARS-CoV-2 infection. METHODS Prospective, web-based registry. Pregnant women were invited to participate if they had suspected or confirmed SARS-CoV-2 infection between 1st January 2020 and 31st March 2021 to assess the impact of infection on maternal and perinatal outcomes including miscarriage, stillbirth, fetal growth restriction, pre-term birth and transmission to the infant. RESULTS Between April 2020 and March 2021, the study recruited 8239 participants who had suspected or confirmed SARs-CoV-2 infection episodes in pregnancy between January 2020 and March 2021. Maternal death affected 14/8197 (0.2%) participants, 176/8187 (2.2%) of participants required ventilatory support. Pre-eclampsia affected 389/8189 (4.8%) participants, eclampsia was reported in 40/ 8024 (0.5%) of all participants. Stillbirth affected 35/8187 (0.4 %) participants. In participants delivering within 2 weeks of delivery 21/2686 (0.8 %) were affected by stillbirth compared with 8/4596 (0.2 %) delivering ≥ 2 weeks after infection (95 % CI 0.3-1.0). SGA affected 744/7696 (9.3 %) of livebirths, FGR affected 360/8175 (4.4 %) of all pregnancies. Pre-term birth occurred in 922/8066 (11.5%), the majority of these were indicated pre-term births, 220/7987 (2.8%) participants experienced spontaneous pre-term births. Early neonatal deaths affected 11/8050 livebirths. Of all neonates, 80/7993 (1.0%) tested positive for SARS-CoV-2. CONCLUSIONS Infection was associated with indicated pre-term birth, most commonly for fetal compromise. The overall proportions of women affected by SGA and FGR were not higher than expected, however there was the proportion affected by stillbirth in participants delivering within 2 weeks of infection was significantly higher than those delivering ≥ 2 weeks after infection. We suggest that clinicians' threshold for delivery should be low if there are concerns with fetal movements or fetal heart rate monitoring in the time around infection. The proportion affected by pre-eclampsia amongst participants was not higher than would be expected, although we report a higher than expected proportion affected by eclampsia. There appears to be no effect on birthweight or congenital malformations in women affected by SARS-CoV-2 infection in pregnancy and neonatal infection is uncommon. This study reflects a population with a range of infection severity for SARS-COV-2 in pregnancy, generalisable to whole obstetric populations.
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Affiliation(s)
- E Mullins
- Imperial College London and The George Institute for Global Health, Imperial College Healthcare NHS Trust, London W12 0HS, UK.
| | - A Perry
- Lead Research Midwife and Manager, Women's Health Research Centre, Imperial College London, W12 0HS, UK
| | - J Banerjee
- Imperial College Healthcare NHS Trust, Institute of Reproductive and Developmental Biology, Imperial College London, W12 0HS, UK
| | - J Townson
- Centre for Trials Research, Cardiff University, Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - D Grozeva
- Centre for Trials Research, Cardiff University, Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - R Milton
- Centre for Trials Research, Cardiff University, Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - N Kirby
- Centre for Trials Research, Cardiff University, Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - R Playle
- Centre for Trials Research, Cardiff University, Neuadd Meirionnydd, Heath Park, Cardiff CF14 4YS, UK
| | - T Bourne
- Imperial College London, Consultant Gyanecologist, Queen Charlotte's and Chelsea Hospital, London W12 0HS, UK
| | - C Lees
- Centre for Fetal Care, Imperial College Healthcare NHS Trust, Institute of Reproductive and Developmental Biology, Imperial College London, London W12 0HS, UK
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Tudu R, Banerjee J, Habib M, Bandyopadhyay S, Biswas S, Kesh SS, Maity A, Batabyal S, Polley S. Prevalence and molecular characterization of extended-spectrum β-lactamase (ESBL) producing Escherichia coli isolated from dogs suffering from diarrhea in and around Kolkata. Iran J Vet Res 2022; 23:237-246. [PMID: 36425605 PMCID: PMC9681975 DOI: 10.22099/ijvr.2022.42543.6176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/21/2022] [Accepted: 05/02/2022] [Indexed: 03/17/2023]
Abstract
BACKGROUND Dogs are the favorite companion animals among humans. The close interaction between dogs and people increases the risk of antibiotic resistance spreading. Surveillance for antimicrobial resistance and the identification of ESBL-producing Escherichia coli as an indicator bacterium is an important tool for managing antimicrobial drug therapy. AIMS The present study targeted to identify and characterize ESBL-producing E. coli among dogs suffering from diarrhea in and around Kolkata. METHODS Isolation and identification of E. coli from dogs suffering from diarrhea (n=70) along with screening for the production of both ESBL and AmpC. The isolates were further characterized through antimicrobial resistance profiling, resistance genes (bla CTX-M, bla TEM, and bla SHV) screening, and phylogenetic group study. RESULTS Among the 70 isolates, 21 (30%) were confirmed ESBL producers. An antibiogram typing of ESBL-producing E. coli revealed that the majority of them were resistant to norfloxacin (85.7%) followed by tetracycline (61.90%), doxycycline (57.14%), piperacillin/tazobactam (52.38%), cotrimoxazole (47.62%), gentamicin (42.62%), amikacin (23.81%), and chloramphenicol (19.05%). Major resistance genes included bla CTX-M (100%), bla TEM (28.57%), and bla SHV (9.50%). The predominant phylogenetic groups were phylogroup A (76%) followed by phylogroup D (24%). CONCLUSION The current investigation reported a high prevalence of both ESBL and AmpC β-lactamase (AmpC) producing E. coli, co-resistance to a distinct group of antibiotics, and co-existence of different ESBL genes in dogs. Our findings highlight the importance of diagnostic antimicrobial susceptibility testing for proper antimicrobial therapy and to prevent antimicrobial resistance from spreading to humans from dogs in Kolkata and the surrounding area.
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Affiliation(s)
- R Tudu
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - J Banerjee
- Ph.D. Student in Veterinary Biochemistry, Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - Md Habib
- Ph.D. Student in Veterinary Biochemistry, Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S Bandyopadhyay
- Eastern Regional Station, Indian Veterinary Research Institute, Kolkata-700 037, West Bengal, India
| | - S Biswas
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S S Kesh
- Department of Veterinary Clinical Complex, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - A Maity
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S Batabyal
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S Polley
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
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Banerjee J, Singh V, Saravanan M, Naganath Narasimhan P. Optimising assessment of older adults with cancer in India: agreement between a newly developed, culturally appropriate scale for Indian population (SCOPE-C, Version1) with popular scales used in the west-the VES-13 and the G-8 scales. J Geriatr Oncol 2021. [DOI: 10.1016/s1879-4068(21)00443-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mizutani T, Cheung K, Hakobyan Y, Lane H, Decoster L, Karnakis T, Puts M, Calderon O, Jørgensen T, Boulahssass R, Wedding U, Karampeazis T, Banerjee J, Falci C, van Leeuwen B, Fonseca V, Gironés Sarrió R, Dougoud V, Naeim A, Shahrokni A, Kanesvaran R. An Overview of Geriatric Oncology in Global Clinical Practice: a SIOG National Representatives’ Survey. J Geriatr Oncol 2021. [DOI: 10.1016/s1879-4068(21)00464-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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De Ramos J, Ferrari F, Andrade M, De Melo C, Dorna M, Costa N, Boas PJFV, Ferreira A, Azevedo P, Phillips B, Atherton P, Banerjee J, Polegato B, Rupp S, Zornoff L, Minicucci M. Association between frailty and c-terminal agrin fragment with 3 months mortality following st-elevation AMI. Clin Nutr ESPEN 2021. [DOI: 10.1016/j.clnesp.2021.09.681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Costa NA, Minicucci MF, Pereira AG, de Paiva SAR, Okoshi MP, Polegato BF, Zornoff LAM, Villas Boas PJF, Atherton PJ, Phillips BE, Banerjee J, Gordon AL, Azevedo PS. Current perspectives on defining and mitigating frailty in relation to critical illness. Clin Nutr 2021; 40:5430-5437. [PMID: 34653819 DOI: 10.1016/j.clnu.2021.09.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 08/22/2021] [Accepted: 09/09/2021] [Indexed: 01/10/2023]
Abstract
Up to half of ICU survivors, many of whom were premorbidly well, will have residual functional and/or cognitive impairment and be vulnerable to future health problems. Frailty describes vulnerability to poor resolution of homeostasis after a stressor event but it is not clear whether the vulnerability seen after ICU correlates with clinical measures of frailty. In clinical practice, the scales most commonly used in critically ill patients are based on the assessment of severity and survival. Identification and monitoring of frailty in the ICU may be an alternative or complimentary approach, particularly if it helps explain vulnerability during the recovery and rehabilitation period. The purpose of this review is to discuss the use of tools to assess frailty status in the critically ill, and consider their importance in clinical practice. Amongst these, we consider biomarkers with potential to identify patients at greater or lesser risk of developing post-ICU vulnerability.
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Affiliation(s)
- N A Costa
- Faculty of Nutrition, Univ Federal de Goiás (UFG), Goiânia, Brazil.
| | - M F Minicucci
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
| | - A G Pereira
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
| | - S A R de Paiva
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
| | - M P Okoshi
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
| | - B F Polegato
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
| | - L A M Zornoff
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
| | - P J F Villas Boas
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
| | - P J Atherton
- Medical Research Council-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, University of Nottingham, Derby, UK
| | - B E Phillips
- Medical Research Council-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, University of Nottingham, Derby, UK
| | - J Banerjee
- Geriatric Emergency Medicine, University Hospitals of Leicester, School of Health Science, University of Leicester, Leicester, UK
| | - A L Gordon
- Medical Research Council-Versus Arthritis Centre for Musculoskeletal Ageing Research and National Institute for Health Research (NIHR) Nottingham Biomedical Research Centre, University of Nottingham, Derby, UK
| | - P S Azevedo
- Department of Internal Medicine, Botucatu Medical School, UNESP - Univ Estadual Paulista, Botucatu, Brazil
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Mullins E, Hudak ML, Banerjee J, Getzlaff T, Townson J, Barnette K, Playle R, Perry A, Bourne T, Lees CC. Pregnancy and neonatal outcomes of COVID-19: coreporting of common outcomes from PAN-COVID and AAP-SONPM registries. Ultrasound Obstet Gynecol 2021; 57:573-581. [PMID: 33620113 PMCID: PMC8014713 DOI: 10.1002/uog.23619] [Citation(s) in RCA: 177] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 05/09/2023]
Abstract
OBJECTIVE Few large cohort studies have reported data on maternal, fetal, perinatal and neonatal outcomes associated with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in pregnancy. We report the outcome of infected pregnancies from a collaboration formed early during the pandemic between the investigators of two registries, the UK and Global Pregnancy and Neonatal outcomes in COVID-19 (PAN-COVID) study and the American Academy of Pediatrics (AAP) Section on Neonatal-Perinatal Medicine (SONPM) National Perinatal COVID-19 Registry. METHODS This was an analysis of data from the PAN-COVID registry (1 January to 25 July 2020), which includes pregnancies with suspected or confirmed maternal SARS-CoV-2 infection at any stage in pregnancy, and the AAP-SONPM National Perinatal COVID-19 registry (4 April to 8 August 2020), which includes pregnancies with positive maternal testing for SARS-CoV-2 from 14 days before delivery to 3 days after delivery. The registries collected data on maternal, fetal, perinatal and neonatal outcomes. The PAN-COVID results are presented overall for pregnancies with suspected or confirmed SARS-CoV-2 infection and separately in those with confirmed infection. RESULTS We report on 4005 pregnant women with suspected or confirmed SARS-CoV-2 infection (1606 from PAN-COVID and 2399 from AAP-SONPM). For obstetric outcomes, in PAN-COVID overall and in those with confirmed infection in PAN-COVID and AAP-SONPM, respectively, maternal death occurred in 0.5%, 0.5% and 0.2% of cases, early neonatal death in 0.2%, 0.3% and 0.3% of cases and stillbirth in 0.5%, 0.6% and 0.4% of cases. Delivery was preterm (< 37 weeks' gestation) in 12.0% of all women in PAN-COVID, in 16.1% of those women with confirmed infection in PAN-COVID and in 15.7% of women in AAP-SONPM. Extreme preterm delivery (< 27 weeks' gestation) occurred in 0.5% of cases in PAN-COVID and 0.3% in AAP-SONPM. Neonatal SARS-CoV-2 infection was reported in 0.9% of all deliveries in PAN-COVID overall, in 2.0% in those with confirmed infection in PAN-COVID and in 1.8% in AAP-SONPM; the proportions of neonates tested were 9.5%, 20.7% and 87.2%, respectively. The rates of a small-for-gestational-age (SGA) neonate were 8.2% in PAN-COVID overall, 9.7% in those with confirmed infection and 9.6% in AAP-SONPM. Mean gestational-age-adjusted birth-weight Z-scores were -0.03 in PAN-COVID and -0.18 in AAP-SONPM. CONCLUSIONS The findings from the UK and USA registries of pregnancies with SARS-CoV-2 infection were remarkably concordant. Preterm delivery affected a higher proportion of women than expected based on historical and contemporaneous national data. The proportions of pregnancies affected by stillbirth, a SGA infant or early neonatal death were comparable to those in historical and contemporaneous UK and USA data. Although maternal death was uncommon, the rate was higher than expected based on UK and USA population data, which is likely explained by underascertainment of women affected by milder or asymptomatic infection in pregnancy in the PAN-COVID study, although not in the AAP-SONPM study. The data presented support strong guidance for enhanced precautions to prevent SARS-CoV-2 infection in pregnancy, particularly in the context of increased risks of preterm delivery and maternal mortality, and for priority vaccination of pregnant women and women planning pregnancy. Copyright © 2021 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- E. Mullins
- Institute of Reproductive and Developmental Biology, Department of MetabolismDigestion and Reproduction, Imperial College LondonLondonUK
- Queen Charlotte's and Chelsea HospitalImperial College Healthcare NHS TrustLondonUK
| | - M. L. Hudak
- Department of Pediatrics, Division of NeonatologyUniversity of Florida College of MedicineJacksonvilleFLUSA
| | - J. Banerjee
- Queen Charlotte's and Chelsea HospitalImperial College Healthcare NHS TrustLondonUK
| | - T. Getzlaff
- Department of Pediatrics, Division of NeonatologyUniversity of Florida College of MedicineJacksonvilleFLUSA
| | - J. Townson
- Centre for Trials ResearchCollege of Biomedical and Life Sciences, Cardiff UniversityCardiffUK
| | - K. Barnette
- Department of Pediatrics, Division of NeonatologyUniversity of Florida College of MedicineJacksonvilleFLUSA
| | - R. Playle
- Centre for Trials ResearchCollege of Biomedical and Life Sciences, Cardiff UniversityCardiffUK
| | - A. Perry
- Institute of Reproductive and Developmental Biology, Department of MetabolismDigestion and Reproduction, Imperial College LondonLondonUK
- Queen Charlotte's and Chelsea HospitalImperial College Healthcare NHS TrustLondonUK
| | - T. Bourne
- Institute of Reproductive and Developmental Biology, Department of MetabolismDigestion and Reproduction, Imperial College LondonLondonUK
- Queen Charlotte's and Chelsea HospitalImperial College Healthcare NHS TrustLondonUK
| | - C. C. Lees
- Institute of Reproductive and Developmental Biology, Department of MetabolismDigestion and Reproduction, Imperial College LondonLondonUK
- Queen Charlotte's and Chelsea HospitalImperial College Healthcare NHS TrustLondonUK
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Gain C, Sarkar A, Bural S, Rakshit M, Banerjee J, Dey A, Biswas N, Kar GK, Saha A. Identification of two novel thiophene analogues as inducers of autophagy mediated cell death in breast cancer cells. Bioorg Med Chem 2021; 37:116112. [PMID: 33751939 DOI: 10.1016/j.bmc.2021.116112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 12/19/2022]
Abstract
Natural compounds isolated from different medicinal plants remain one of the major resources of anticancer drugs due to their enormous chemical diversity. Studies suggested therapeutic potential for various tanshinones, key bioactive lipophilic compounds from the root extracts of Salvia miltiorrhiza Bunge, against multiple cancers including breast carcinoma. We designed, synthesized and evaluated anti-cancer properties of a series of condensed and doubly condensed furophenanthraquinones of tanshinone derivatives on two breast cancer lines - MCF7 and MDA-MB-231. We identified two thiophene analogues - compounds 48 and 52 with greater anti-proliferative efficiency (~4 fold) as compared to the natural tanshinones. Mechanistically, we showed that both compounds induced autophagy mediated cell death and partial but significant restoration of cell death in the presence of autophagy inhibitor further supported this notion. Both compounds transcriptionally activated several autophagy genes responsible for autophagosome formation along with two death regulators - GADD34 and CHOP for inducing cell death. Altogether, our studies provide strong evidence to support compounds 48 and 52 as promising leads for further development as anticancer agents through modulating autophagy mechanism.
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Affiliation(s)
- Chandrima Gain
- School of Biotechnology, Presidency University, Second Campus, Plot No. DG/02/02, Premises No. 14-0358, Action Area-ID, New Town, Kolkata 700156, West Bengal, India
| | - Aparna Sarkar
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Shrea Bural
- School of Biotechnology, Presidency University, Second Campus, Plot No. DG/02/02, Premises No. 14-0358, Action Area-ID, New Town, Kolkata 700156, West Bengal, India
| | - Moumita Rakshit
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Jeet Banerjee
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Ankita Dey
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Nabendu Biswas
- Department of Life Sciences, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India
| | - Gandhi K Kar
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700073, West Bengal, India.
| | - Abhik Saha
- School of Biotechnology, Presidency University, Second Campus, Plot No. DG/02/02, Premises No. 14-0358, Action Area-ID, New Town, Kolkata 700156, West Bengal, India.
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Mandal S, Banerjee J, Maity S, Chattopadhyay SK. Sequential Two‐Fold
Claisen
Rearrangement, One‐Pot Ring‐Closing Metathesis and Cross‐Metathesis as a Route to Substituted Benzo[
b
]azepine‐2‐one, Benzo[
b
]azepine and Benzo[
b
]oxepine Derivatives. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202000216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shyamasankar Mandal
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Jeet Banerjee
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
| | - Sougata Maity
- Department of Chemistry University of Kalyani Kalyani 741235 West Bengal India
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Nag Chowdhury S, Kundu S, Banerjee J, Perc M, Ghosh D. Eco-evolutionary dynamics of cooperation in the presence of policing. J Theor Biol 2021; 518:110606. [PMID: 33582077 DOI: 10.1016/j.jtbi.2021.110606] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/31/2020] [Accepted: 01/24/2021] [Indexed: 11/15/2022]
Abstract
Ecology and evolution are inherently linked, and studying a mathematical model that considers both holds promise of insightful discoveries related to the dynamics of cooperation. In the present article, we use the prisoner's dilemma (PD) game as a basis for long-term apprehension of the essential social dilemma related to cooperation among unrelated individuals. We upgrade the contemporary PD game with an inclusion of evolution-induced act of punishment as a third competing strategy in addition to the traditional cooperators and defectors. In a population structure, the abundance of ecologically-viable free space often regulates the reproductive opportunities of the constituents. Hence, additionally, we consider the availability of free space as an ecological footprint, thus arriving at a simple eco-evolutionary model, which displays fascinating complex dynamics. As possible outcomes, we report the individual dominance of cooperators and defectors as well as a plethora of mixed states, where different strategies coexist followed by maintaining the diversity in a socio-ecological framework. These states can either be steady or oscillating, whereby oscillations are sustained by cyclic dominance among different combinations of cooperators, defectors, and punishers. We also observe a novel route to cyclic dominance where cooperators, punishers, and defectors enter a coexistence via an inverse Hopf bifurcation that is followed by an inverse period doubling route.
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Affiliation(s)
- Sayantan Nag Chowdhury
- Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India
| | - Srilena Kundu
- Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India
| | - Jeet Banerjee
- BYJU'S, Think & Learn Pvt. Ltd., IBC Knowledge Park, 4/1 Bannerghatta Main Road, Bangalore 560029, India.
| | - Matjaž Perc
- Faculty of Natural Sciences and Mathematics, University of Maribor, Koroška cesta 160, 2000 Maribor, Slovenia; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan; Complexity Science Hub Vienna, Josefstädterstraße 39, 1080 Vienna, Austria.
| | - Dibakar Ghosh
- Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata 700108, India.
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Hignett S, Welsh R, Banerjee J. Human factors issues of working in personal protective equipment during the COVID-19 pandemic. Anaesthesia 2020; 76:134-135. [PMID: 32638351 PMCID: PMC7361357 DOI: 10.1111/anae.15198] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2020] [Indexed: 11/28/2022]
Affiliation(s)
- S Hignett
- Loughborough University, Loughborough, UK
| | - R Welsh
- Loughborough University, Loughborough, UK
| | - J Banerjee
- University Hospitals of Leicester NHS Trusts, Leicester, UK
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Affiliation(s)
- Subhankar Ghosh
- Department of Chemistry, University of Kalyani, Kalyani, India
| | - Jeet Banerjee
- Department of Chemistry, University of Kalyani, Kalyani, India
| | - Rajat Ghosh
- Department of Chemistry, University of Kalyani, Kalyani, India
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Banerjee J, Satapathy S, Dwivedi S, Kumar L, Dey A. VALIDATION OF A NEWLY DEVELOPED SCREENING TOOL (SCOPE-C, VERSION 1) FOR STREAMLINING CARE AND DECISION MAKING IN THE OLDER ADULTS WITH CANCER IN INDIA. J Geriatr Oncol 2019. [DOI: 10.1016/s1879-4068(19)31251-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Banerjee J, Sasmal SK, Layek RK. Supercritical and subcritical Hopf-bifurcations in a two-delayed prey–predator system with density-dependent mortality of predator and strong Allee effect in prey. Biosystems 2019; 180:19-37. [DOI: 10.1016/j.biosystems.2019.02.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 12/31/2018] [Accepted: 02/26/2019] [Indexed: 11/26/2022]
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Banerjee J, Layek RK, Sasmal SK, Ghosh D. Delayed evolutionary model for public goods competition with policing in phenotypically variant bacterial biofilms. ACTA ACUST UNITED AC 2019. [DOI: 10.1209/0295-5075/126/18002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Sasmal SK, Banerjee J, Takeuchi Y. Dynamics and spatio-temporal patterns in a prey-predator system with aposematic prey. Math Biosci Eng 2019; 16:3864-3884. [PMID: 31499640 DOI: 10.3934/mbe.2019191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We analyze the impact of aposematic time and searching efficiency of prey on the temporal and spatio-temporal dynamics of a diffusive prey-predator system. Here, our assumption is that the prey population primarily invests its total time in two activities-(i) defense against predation and (ii) searching for food, followed by growth-induced reproduction, whereas, predators do not involve in self-defense. Moreover, we consider that the reproduction rate of prey and the rate of predation have a negative linear correlation with the amount of time invested for aposematism. Based on the presump- tions, we find that unlike searching efficiency of prey, the aposematic time can diminish the proportion in which prey and predator coexist when it crosses a certain threshold, and at the extreme aposematism, the entire population drives into the extinction. The proposed dynamics undergoes Hopf-bifurcation with respect to the searching efficiency of prey. We examine the individual effect of aposematic time and searching efficiency on the formation of regular Turing patterns-the low to medium to high val-ues of defense-time and food searching efficiency generate 'spots' to 'stripes' to 'holes' pattern, re-spectively; however, the combined impact of both presents only non-Turing 'spot' pattern with the 'predominance of predators,' which happens through the Turing-Hopf bifurcation.
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Affiliation(s)
- Sourav Kumar Sasmal
- Department of Physics and Mathematics, Aoyama Gakuin University, Kanagawa 252-5258, Japan
| | - Jeet Banerjee
- Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - Yasuhiro Takeuchi
- Department of Physics and Mathematics, Aoyama Gakuin University, Kanagawa 252-5258, Japan
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Affiliation(s)
- F Aijaz
- University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, UK
| | - S Conroy
- University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, UK
| | - J Banerjee
- University Hospitals of Leicester, Leicester Royal Infirmary, Leicester, UK
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Singh RD, Banerjee J, Sasmal S, Muir J, Arora A. High xylan recovery using two stage alkali pre-treatment process from high lignin biomass and its valorisation to xylooligosaccharides of low degree of polymerisation. Bioresour Technol 2018; 256:110-117. [PMID: 29433045 DOI: 10.1016/j.biortech.2018.02.009] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/30/2018] [Accepted: 02/01/2018] [Indexed: 05/11/2023]
Abstract
In the present work, xylan from arecanut husk was extracted using 2 stage alkaline pretreatment process. In first step, biomass was incubated in alkali at different temperatures (25 °C, 50 °C and 65 °C), alkali concentrations (5%, 10%, 15% and 20% w/v), and incubation periods (8 h, 16 h and 24 h) and evaluated for xylan recovery. It was observed that 40-52% of available xylan could be recovered using 10% alkali when incubated for 8-24 h at 65 °C. Subsequently, the alkali pretreatment operating conditions which provided good xylan recovery were processed further using hydrothermal treatment to extract more xylan. For maximum xylan recovery (>90%), best operating conditions were identified when biomass was treated under hydrothermal treatment (1, 1.5 and 2 h) with varying incubation periods (8, 16, 24 h) and alkali concentrations (5%, 10%) using full factorial design. Incubating arecanut husk with 10% w/v NaOH, at 65 °C for a period of 8 h, followed by hydrothermal treatment at 121 °C for 1 h helped recover >94% xylan. In the next step, enzymatic hydrolysis process was optimized to recover maximum XOS (Optimized condition: 50 °C, pH 4 and 10 U enzyme dose). The hydrolysate comprised of xylobiose: 25.0 ± 1.2 g/100 g xylan (∼71% of XOS), xylotriose: 9.2 ± 0.65 g/100 g xylan (26.2% of XOS) and xylotetrose: 0.9 ± 0.04 g/100 g xylan (2% of XOS). The developed process enables to reduce alkali consumption for high recovery of xylan from biomass with relatively higher lignin content for its valorisation into a potential prebiotic oligosaccharide.
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Affiliation(s)
- R D Singh
- Indian Institute of Technology Bombay-Monash Research Academy, Indian Institute of Technology, Bombay, India; Bio-Processing Laboratory, Centre for Technology Alternatives for Rural Areas, Indian Institute of Technology, Bombay, India
| | - J Banerjee
- Indian Institute of Technology Bombay-Monash Research Academy, Indian Institute of Technology, Bombay, India; Bio-Processing Laboratory, Centre for Technology Alternatives for Rural Areas, Indian Institute of Technology, Bombay, India
| | - S Sasmal
- Bio-Processing Laboratory, Centre for Technology Alternatives for Rural Areas, Indian Institute of Technology, Bombay, India
| | - J Muir
- Department of Gastroenterology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - A Arora
- Indian Institute of Technology Bombay-Monash Research Academy, Indian Institute of Technology, Bombay, India; Bio-Processing Laboratory, Centre for Technology Alternatives for Rural Areas, Indian Institute of Technology, Bombay, India.
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Abstract
Objective The progressive rise in demand on NHS emergency care resources is partly attributable to increases in attendances of children and older people. A quality gap exists in the care provision for the old and the young. The Five Year Forward View suggested new models of care but that the "answer is not one-size-fits-all". This article discusses the urgent need for person-centred outcome measures to bridge the gap that exists between demand and provision. Design This review is based on evidence gathered from literature searching across several platforms using a variety of search terms to account for the obvious heterogeneity, drawing on key 'think-tank' evidence. Settings Qualitative and quantitative studies examining approaches to caring for individuals at the extremes of age. Participants Individuals at the extremes of age (infants and older people). Main Outcome Measures Understanding similarities and disparities in the care of individuals at the extremes of age in an emergency and non-emergency context. Results There exists several similarities and disparities in the care of individuals at the extremes of age. The increasing burden of health disease on the economy must acknowledge the challenges that exist in managing patients in emergency settings at the extremes of age and build systems to acknowledge the traits these individuals exhibit. Conclusion Commissioners of services must optimise the models of care delivery by appreciating the similarities and differences between care requirements in these two large groups seeking emergency care.
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Affiliation(s)
- J S Minhas
- 1 Cerebral Haemodynamics in Ageing and Stroke Medicine (CHIASM) Research Group, Department of Cardiovascular Sciences, University of Leicester, Leicester LE2 7LX, UK
| | - D Minhas
- 2 Department of Paediatrics, University Hospitals of Leicester NHS Trust, Leicester LE1 5WW, UK
| | - T Coats
- 3 Emergency Medicine Academic Group, Cardiovascular Sciences, University of Leicester, Leicester LE1 5WW, UK
| | - J Banerjee
- 3 Emergency Medicine Academic Group, Cardiovascular Sciences, University of Leicester, Leicester LE1 5WW, UK
| | - D Roland
- 4 Department of Health Sciences, Centre for Medicine, University of Leicester, Leicester LE1 7RH, UK.,5 Paediatric Emergency Medicine Leicester Academic (PEMLA) Group, Leicester Royal Infirmary, Leicester LE1 5WW, UK
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Akpan A, Banerjee J, Roberts C. DEFINING A STANDARD SET OF PATIENT-CENTERED OUTCOMES FOR OLDER PERSONS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A. Akpan
- Aintree University Hospitals NHS Foundation Trust, Aintree, United Kingdom,
- ICHOM Older Person Working Group, London, United Kingdom,
| | - J. Banerjee
- University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
- ICHOM Older Person Working Group, London, United Kingdom,
| | - C. Roberts
- ICHOM Older Person Working Group, London, United Kingdom,
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Banerjee J. STANDARDISATION OF HEALTH OUTCOME MEASURES AND VALUE-BASED HEALTHCARE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J. Banerjee
- University Hospitals of Leicester NHS Trust, Leicester, United Kingdom
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Banerjee J, Akpan A, Reynish E, Roberts C. THE IMPLEMENTATION OF ICHOM STANDARD SET OF OUTCOMES. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Banerjee J, Dey A, Chatterjee P, Ambashtha A. PRE-TREATMENT QUALITY OF LIIFE IN OLDER CANCER PATIENTS: A PERSISTENT PREDICTOR OF SURVIVAL. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J. Banerjee
- Geriatric Medicine, All India Institute Of Medical Sciences, New Delhi, India
| | - A. Dey
- Geriatric Medicine, All India Institute Of Medical Sciences, New Delhi, India
| | - P. Chatterjee
- Geriatric Medicine, All India Institute Of Medical Sciences, New Delhi, India
| | - A. Ambashtha
- Geriatric Medicine, All India Institute Of Medical Sciences, New Delhi, India
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Akpan A, Roberts C, Turner G, Banerjee J. 136Developing An Internationally Agreed Standard Set Of Health Outcome Measures For Older People. Age Ageing 2017. [DOI: 10.1093/ageing/afx068.136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sengupta AK, Banerjee J, Jarvis T, Kutty TRG, Ravi K, Majumdar S. Out-of-Pile Properties of Hyperstoichiometric (U0.45Pu0.55)C Fuel for the Fast Breeder Test Reactor. NUCL TECHNOL 2017. [DOI: 10.13182/nt03-a3388] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- A. K. Sengupta
- Bhabha Atomic Research Centre, Radiometallurgy Division Mumbai 400085, India
| | - J. Banerjee
- Bhabha Atomic Research Centre, Radiometallurgy Division Mumbai 400085, India
| | - T. Jarvis
- Bhabha Atomic Research Centre, Radiometallurgy Division Mumbai 400085, India
| | - T. R. G. Kutty
- Bhabha Atomic Research Centre, Radiometallurgy Division Mumbai 400085, India
| | - K. Ravi
- Bhabha Atomic Research Centre, Radiometallurgy Division Mumbai 400085, India
| | - S. Majumdar
- Bhabha Atomic Research Centre, Radiometallurgy Division Mumbai 400085, India
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Banerjee J, Pradhan R, Gupta A, Kumar R, Sahu V, Upadhyay AD, Chaterjee P, Dwivedi S, Dey S, Dey AB. CDK4 in lung, and head and neck cancers in old age: evaluation as a biomarker. Clin Transl Oncol 2016; 19:571-578. [PMID: 27815686 DOI: 10.1007/s12094-016-1565-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 10/22/2016] [Indexed: 01/14/2023]
Abstract
BACKGROUND Cyclin dependent kinases (CDK) are key factors in promoting the initiation and development of tumors. These kinases are important for maintenance of mitochondrial biogenesis and imbalance in their expression in old age may lead to the oxidative stress. Lung cancer (LC), and head and neck squamous cell carcinoma (HNSCC) are two very prominent cancers in older Indians. Both the cancers are showing increasing trend in older population. The present study assessed serum concentration of one of the kinases; CDK4 in older LC and HNSCC patients. METHODS The study included 100 subjects each of LC and HNSCC; and older subjects without cancer or any major health problems as controls. Serum CDK4 concentration was estimated using real-time label-free Surface plasmon resonance (SPR) and was verified by western blot. RESULTS Significant elevation in serum CDK4 was observed in cases with LC and HNSCC compared to controls. HNSCC patients with higher CDK4 expression had distinctly shorter survival than patients with comparatively lower CDK4 expression. No such difference was observed in LC patients. The germ line mutation study of this gene in Exon-2 was performed and none was observed among cases and controls. CONCLUSION It can be concluded that older patients with HNSCC and lung cancer have raised serums CDK4 levels, which has the potential to emerge as a biomarker in clinical practice.
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Affiliation(s)
- J Banerjee
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - R Pradhan
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - A Gupta
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - R Kumar
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - V Sahu
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - A D Upadhyay
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - P Chaterjee
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - S Dwivedi
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - S Dey
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
| | - A B Dey
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
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Banerjee J, Ranjan T, Layek RK. Dynamics of cancer progression and suppression: A novel evolutionary game theory based approach. Annu Int Conf IEEE Eng Med Biol Soc 2016; 2015:5367-71. [PMID: 26737504 DOI: 10.1109/embc.2015.7319604] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
In this paper, a novel mathematical approach is proposed for the dynamics of progression and suppression of cancer. We define mutant cell density, ρ(μ) (μ × ρ), as a primary factor in cancer dynamics, and use logistic growth model and replicator equation for defining the dynamics of total cell density (ρ) and mutant fraction (μ), respectively. Furthermore, in the proposed model, we introduce an analytical expression for a control parameter D (drug), to suppress the proliferation of mutants with extra fitness level σ. Lastly, we present a comparison of the proposed model with some existing models of tumour growth.
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Banerjee J, Leung TS, Aladangady N. Blood transfusion in preterm infants improves intestinal tissue oxygenation without alteration in blood flow. Vox Sang 2016; 111:399-408. [PMID: 27509230 DOI: 10.1111/vox.12436] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 06/07/2016] [Accepted: 06/28/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND AND OBJECTIVE The objective of the study was to investigate the splanchnic blood flow velocity and oximetry response to blood transfusion in preterm infants according to postnatal age. MATERIALS AND METHODS Preterm infants receiving blood transfusion were recruited to three groups: 1-7 (group 1; n = 20), 8-28 (group 2; n = 21) and ≥29 days of life (group 3; n = 18). Superior mesenteric artery (SMA) peak systolic (PSV) and diastolic velocities were measured 30-60 min pre- and post-transfusion using Doppler ultrasound scan. Splanchnic tissue haemoglobin index (sTHI), tissue oxygenation index (sTOI) and fractional tissue oxygen extraction (sFTOE) were measured from 15-20 min before to post-transfusion using near-infrared spectroscopy. RESULTS The mean pretransfusion Hb in group 1, 2 and 3 was 11, 10 and 9 g/dl, respectively. The mean (SD) pretransfusion SMA PSV in group 1, 2 and 3 was 0·63 (0·32), 0·81 (0·33) and 0·97 (0·40) m/s, respectively, and this did not change significantly following transfusion. The mean (SD) pretransfusion sTOI in group 1, 2 and 3 was 36·7 (19·3), 44·6 (10·4) and 41·3 (10·4)%, respectively. The sTHI and sTOI increased (P < 0·01), and sFTOE decreased (P < 0·01) following transfusion in all groups. On multivariate analysis, changes in SMA PSV and sTOI following blood transfusion were not associated with PDA, feeding, pretransfusion Hb and mean blood pressure. CONCLUSION Pretransfusion baseline splanchnic tissue oximetry and blood flow velocity varied with postnatal age. Blood transfusion improved intestinal tissue oxygenation without altering mesenteric blood flow velocity irrespective of postnatal ages.
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Affiliation(s)
- J Banerjee
- Neonatal Unit, Homerton University Hospital NHS Foundation Trust, London, UK.,Centre for Paediatrics, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK.,Portland Hospital, London, UK
| | - T S Leung
- Department of Medical Physics and Biomedical Engineering, University College London, London, UK
| | - N Aladangady
- Neonatal Unit, Homerton University Hospital NHS Foundation Trust, London, UK.,Centre for Paediatrics, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK.,Department of Paediatrics, SDM Medical College and Hospitals, Dharwad, India
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Koovapra S, Bandyopadhyay S, Das G, Bhattacharyya D, Banerjee J, Mahanti A, Samanta I, Nanda PK, Kumar A, Mukherjee R, Dimri U, Singh RK. Molecular signature of extended spectrum β-lactamase producing Klebsiella pneumoniae isolated from bovine milk in eastern and north-eastern India. Infect Genet Evol 2016; 44:395-402. [PMID: 27473782 DOI: 10.1016/j.meegid.2016.07.032] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 07/22/2016] [Accepted: 07/24/2016] [Indexed: 11/16/2022]
Abstract
The present study reports on 23 extended spectrum β-lactamase producing Klebsiella pneumoniae (KP), isolated from milk samples (n=340) of healthy cows (n=129) and cows with subclinical (n=159) and clinical (n=52) mastitis, from three different states of India viz. West Bengal, Jharkhand and Mizoram. Seven of them were AmpC type β-lactamase producers, as well. The ESBL producing KP were significantly (P=0.006, χ2=10.04, df=2) and more frequently detected in milk samples of mastitic cows than healthy ones. The β-lactamase genes - blaCTX-M, blaTEM and blaSHV were detected in 19, 8 and 3 isolates, respectively. In all but one CTX-M positive isolates, the genetic platform - ISEcp1-blaCTX-M-orf477 was detected. Ten of the isolates carried plasmid mediated quinolone resistance gene - qnrS and 1 isolate possessed qnrB. Again 11 of them were found to have sulfonamide resistance gene - sul1 and 12 possessed class I integron. Sequencing of the class 1 integron revealed the presence of dfrA12/dfrA17 and aadA2/aadA5 gene cassettes conferring resistance to trimethoprim and aminoglycosides, respectively. All the isolates, characterized by enterobacterial repetitive intergenic consensus (ERIC) PCR, yielded distinct fingerprinting profile. However, most of the isolates from Jharkhand were clustered along with two isolates each from West Bengal and Mizoram indicating their clonal relatedness even though isolated from geographically different areas. Isolation of ESBL producing KP from bovine milk samples implies its public health significance; as such pathogens may enter the human food chain causing severe health hazards.
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Affiliation(s)
- S Koovapra
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - S Bandyopadhyay
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India.
| | - G Das
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - D Bhattacharyya
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - J Banerjee
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - A Mahanti
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - I Samanta
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - P K Nanda
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - A Kumar
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - R Mukherjee
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - U Dimri
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
| | - R K Singh
- ICAR-Indian Veterinary Research Institute, Eastern Regional Station, 37 Belgachia Road, Kolkata 700 037, India
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Banerjee J, Leung TS, Aladangady N. Cerebral blood flow and oximetry response to blood transfusion in relation to chronological age in preterm infants. Early Hum Dev 2016; 97:1-8. [PMID: 26619762 DOI: 10.1016/j.earlhumdev.2015.10.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 10/26/2015] [Accepted: 10/27/2015] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Preterm infants frequently receive blood transfusion (BT) and the aim of this study was to measure the effect of BT on cerebral blood flow and oxygenation in preterm infants in relation to chronological age. PATIENTS Preterm infants undergoing intensive care recruited to three chronological age groups: 1 to 7 (Group 1; n=20), 8 to 28 (Group 2; n=21) & ≥29days of life (Group 3; n=18). METHODS Pre and post-BT anterior cerebral artery (ACA) time averaged mean velocity (TAMV) and superior vena cava (SVC) flow were measured. Cerebral Tissue Haemoglobin Index (cTHI) and Oxygenation Index (cTOI) were measured from 15-20min before to 15-20min post-BT using NIRS. Vital parameters and blood pressure were measured continuously. RESULTS Mean BP increased significantly, and there was no significant change in vital parameters following BT. Pre-BT ACA TAMV was higher in Group 2 and 3 compared to Group 1 (p<0.001). Pre-BT ACA TAMV decreased significantly (p≤0.04) in all 3 groups; pre-BT SVC flow decreased significantly in Group 1 (p=0.03) and Group 3 (p<0.001) following BT. Pre-BT cTOI was significantly lower in Group 3 compared to Group 1 (p=0.02). cTHI (p<0.001) and cTOI (p<0.05) increased significantly post-BT in all three groups. PDA had no effect on these measurements. CONCLUSION Baseline cTOI decreases and ACA TAMV increases with increasing chronological age. Blood transfusion increased cTOI and cTHI and decreased ACA TAMV in all groups. PDA had no impact on the baseline cerebral oximetry and blood flow as well as changes following blood transfusion.
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Affiliation(s)
- J Banerjee
- Neonatal Unit, Homerton University Hospital NHS Foundation Trust, Homerton Row, London E9 6SR, UK; Centre for Genomics and Child Health, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK; Portland Hospital, London, UK.
| | - T S Leung
- Department of Medical Physics and Biomedical Engineering, University College London, Gower Street, London WC1E 6BT, UK.
| | - N Aladangady
- Neonatal Unit, Homerton University Hospital NHS Foundation Trust, Homerton Row, London E9 6SR, UK; Centre for Genomics and Child Health, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK; Department of Paediatrics, SDM Medical College and Hospitals, Dharwad, India.
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Banerjee J, Soliya P, Pallavi MB, Mukhopadhyay P, Bandyopadhyay S, Chakrabarty D, Dutta K. Impact Modification of Isotactic Polypropylene with Ethylene-Propylene Diene Monomer Rubber. INT POLYM PROC 2016. [DOI: 10.3139/217.3143] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The present work was done to improve the impact property of isotactic polypropylene (PP), especially at low temperatures, by incorporating ethylene propylene diene monomers (EPDM). This was done by ensuring compatibility between the two polymers with phase modifiers polyethylene grafted with maleic anhydride (PE-g-MA) and initiator dicumyl peroxide (DCP). In addition, attempts were also made to understand the fundamentals of impact toughening as well as fracture toughness, and to correlate the results with that of morphological evidences obtained from scanning electron microscopy (SEM) and X-ray diffraction (XRD) methods. Varying the ratios of all blend composition, mechanical properties were studied. It was observed that as the rubber fraction increased, the impact property as well as fracture toughness increased. All these tests also showed promising results when PE-g-MA was added, leading to more improvement in all the mechanical properties including increase in crystallite size. It had shown plasticization effect on the compositions, which could be further confirmed by differential scanning calorimetry (DSC) compared to the uncompatibilized ones. But when DCP was added, it behaved like an initiator which directly reacted with the PP matrix, decreasing the molecular weight of the blend with decreasing size of the crystallites.
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Affiliation(s)
- J. Banerjee
- Department of Polymer Science and Technology , University of Calcutta, Kolkata , India
| | - P. Soliya
- SABIC Research and Technology Pvt. Ltd. , Bangalore , India
| | - M. B. Pallavi
- SABIC Research and Technology Pvt. Ltd. , Bangalore , India
| | | | | | - D. Chakrabarty
- Department of Polymer Science and Technology , University of Calcutta, Kolkata , India
| | - K. Dutta
- Department of Polymer Science and Technology , University of Calcutta, Kolkata , India
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Manikam L, Hoy A, Fosker H, Wong MHY, Banerjee J, Lakhanpaul M, Knight A, Littlejohns P. What drives junior doctors to use clinical practice guidelines? A national cross-sectional survey of foundation doctors in England & Wales. BMC Med Educ 2015; 15:227. [PMID: 26692267 PMCID: PMC4687363 DOI: 10.1186/s12909-015-0510-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 12/11/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Clinical practice guidelines (CPGs) aim to improve patient care, but their use remains variable. We explored attitudes that influence CPG use amongst newly qualified doctors. METHODS A self-completed, anonymous questionnaire was sent to all Foundation Doctors in England and Wales between December 2012 and May 2013. We included questions designed to measure the 11 domains of the validated Theoretical Domains Framework (TDF). We correlated these responses to questions assessing current and future intention to use CPGs. RESULTS A total of 13,138 doctors were invited of which 1693 [corrected] (13 %) responded. 1,035 (62.5 %) reported regular CPG use with 575 (34.4 %) applying CPGs 2-3 times per week. A significant minority of 606 (36.6 %) declared an inability to critically appraise evidence. Despite efforts to design a questionnaire that captured the domains of the TDF, the domain scales created had low internal reliability. Using previously published studies and input from an expert statistical group, an alternative model was sought using exploratory factor analysis. Five alternative domains were identified. These were judged to represent: "confidence", "familiarity", "commitment and duty", "time" and "perceived benefits". Using regression analyses, the first three were noted as consistent predictors of both current and future intentions to use CPGs in decreasing strength order. CONCLUSIONS In this large survey of newly qualified doctors, "confidence", "familiarity" and "commitment and duty" were identified as domains that influence use of CPGs in frontline practice. Additionally, a significant minority were not confident in critically appraising evidence. Our findings suggest a number of approaches that may be taken to improve junior doctors' commitment to CPGs through processes that increase their confidence and familiarity in using CPGs. Despite limitations of a self-reported survey and potential non-response bias, these findings are from a large representative sample and a review of existing implementation strategies may be warranted based on these findings.
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Affiliation(s)
- L. Manikam
- />Population, Policy and Practice, UCL Institute of Child Health, 30 Guildford Street, London, WC1N 1EH UK
- />National Institute for Health and Care Excellence, 10 Spring Gardens, London, SW1A 2BU UK
| | - A. Hoy
- />National Institute for Health and Care Excellence, 10 Spring Gardens, London, SW1A 2BU UK
| | - H. Fosker
- />University Hospitals of Leicester NHS Trust, Infirmary Square, Leicester, LE1 5WW UK
| | - Martin Ho Yin Wong
- />University College London Hospitals NHS Foundation Trust, 235 Euston Road, London, NW1 2BU UK
| | - J. Banerjee
- />University Hospitals of Leicester NHS Trust, Infirmary Square, Leicester, LE1 5WW UK
| | - M. Lakhanpaul
- />Department of Primary Care and Public Health Sciences, King’s College London, Addison House, London, SE1 IUL UK
| | - A. Knight
- />King’s Improvement Science, Health Service and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, Addison House, London, SE1 IUL UK
| | - P. Littlejohns
- />Department of Primary Care and Public Health Sciences, King’s College London, Addison House, London, SE1 IUL UK
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Gopinathan R, Kanhere J, Banerjee J. Effect of malachite green toxicity on non target soil organisms. Chemosphere 2015; 120:637-644. [PMID: 25462308 DOI: 10.1016/j.chemosphere.2014.09.043] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 09/08/2014] [Accepted: 09/12/2014] [Indexed: 06/04/2023]
Abstract
Although malachite green (MG), is banned in Europe and US for its carcinogenic and teratogenic effect, the dye being cheap, is persistently used in various countries for fish farming, silk, dye, leather and textile industries. Current research, however, fails to elucidate adequate knowledge concerning the effects of MG in our ecosystem. In the present investigation, for the first time, an attempt has been made to study the effects of MG on soil biota by testing Bacillus subtilis, Azotobacter chroococcum, Saccharomyces cerevisiae, Penicillium roqueforti, Eisenia fetida and seeds of three crop plants of different families. Various tests were conducted for determining cytotoxicity, genotoxicity, acute toxicity, morphological and germination effect. Our data confirmed MG toxicity on fungi and bacteria (gram positive and gram negative organisms) showing elevated level of ROS. Genotoxicity caused in the microorganisms was detected by DNA polymorphism and fragmentation. Also, scanning electron microscopy data suggests that the inhibitory effect of MG to these beneficial microbes in the ecosystem might be due to pore formation in the cell and its eventual disruption. Filter paper and artificial soil test conducted on earthworms demonstrated a LC 50 of 2.6 mg cm(-2) and 1.45 mg kg(-1) respectively with severe morphological damage. However, seed germination of Mung bean, Wheat and Mustard was found to be unaffected in presence of MG up to 100 mL(-1) concentration. Thus, understanding MG toxicity in non target soil organisms and emphasis on its toxicological effects would potentially explicate its role as an environmental contaminant.
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Affiliation(s)
- R Gopinathan
- Biology Department, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411 008, India
| | - J Kanhere
- Biology Department, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411 008, India
| | - J Banerjee
- Biology Department, 900 NCL Innovation Park, Indian Institute of Science Education and Research (IISER), Pune, Dr. Homi Bhabha Road, Pune 411 008, India.
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Dey PK, Banerjee J, Singh RP, Pan A, Chatterjee A. Symptomatic first urinary tract infection in children and underlying kidney and urinary ttract abnormalities from a tertiary care hospital in India. J Coll Med Sci-Nepal 2014. [DOI: 10.3126/jcmsn.v9i3.10222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Objective The aim of this study was to describe the characteristics and the clinical evolution of first documented symptomatic Urinary Tract Infection and to detect underlying abnormalities of the kidney and urinary tract if any. Methods Prospective observational study on 102 patients (6 months to 5 yrs) with first documented symptomatic Urinary Tract Infection diagnosed by positive urine culture in the department of Paediatrics, G.S.V.M Medical College, Kanpur, India between January 2008 and June 2009. Antibiotics were given according to the sensitivity pattern. All children were evaluated with renal bladder ultrasonogram and voiding cystourethrography. Results Out of 102 patients 62 (60.78%) girls and 40 (39.21%) boys, most of the patients (62.7%) within 6 months to 2 years old. The commonest presentation was fever (84.3%).The commonest organism was E.Coli (80.37%). Overall most common underlying abnormality was VUR, found in 31(30.31%) children. Other abnormalities were urolithiasis(4.9%), ureteropelvic junction obstruction (3.92%),Mild hydronephrosis (2.9%), ureteric duplex(0.98%), posterior urethral valve(0.98%), renal duplex (0.98%). Conclusion In our study 45.09% children had underlying abnormalities which may be a potential risk factor for urinary tract infection. Better recognition of risk factors, prompt diagnosis and early intervention are sufficient enough to maintain normal renal function and healthy lifestyle. Journal of College of Medical Sciences-Nepal, 2013, Vol-9, No-3, 45-53 DOI: http://dx.doi.org/10.3126/jcmsn.v9i3.10222
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Desai HK, Christian RA, Banerjee J, Patra AK. A fuzzy approach for modelling radionuclide in lake system. J Environ Radioact 2013; 124:37-43. [PMID: 23639693 DOI: 10.1016/j.jenvrad.2013.03.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 12/23/2012] [Accepted: 03/24/2013] [Indexed: 06/02/2023]
Abstract
Radioactive liquid waste is generated during operation and maintenance of Pressurised Heavy Water Reactors (PHWRs). Generally low level liquid waste is diluted and then discharged into the near by water-body through blowdown water discharge line as per the standard waste management practice. The effluents from nuclear installations are treated adequately and then released in a controlled manner under strict compliance of discharge criteria. An attempt was made to predict the concentration of (3)H released from Kakrapar Atomic Power Station at Ratania Regulator, about 2.5 km away from the discharge point, where human exposure is expected. Scarcity of data and complex geometry of the lake prompted the use of Heuristic approach. Under this condition, Fuzzy rule based approach was adopted to develop a model, which could predict (3)H concentration at Ratania Regulator. Three hundred data were generated for developing the fuzzy rules, in which input parameters were water flow from lake and (3)H concentration at discharge point. The Output was (3)H concentration at Ratania Regulator. These data points were generated by multiple regression analysis of the original data. Again by using same methodology hundred data were generated for the validation of the model, which were compared against the predicted output generated by using Fuzzy Rule based approach. Root Mean Square Error of the model came out to be 1.95, which showed good agreement by Fuzzy model of natural ecosystem.
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Affiliation(s)
- H K Desai
- Civil Engineering Department, Government Engineering College, Majuragate, Surat, Gujarat 395001, India.
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Thakur M, Banerjee J, Shaeib F, Diamond M, Saed G, Abu-Soud H. Confocal 3-dimensional reconstruction can serve as a useful tool to quantify oxidative stress induced oocyte spindle damage. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bellos MA, Carollo R, Banerjee J, Eyler EE, Gould PL, Stwalley WC. Excitation of weakly bound molecules to trilobitelike Rydberg states. Phys Rev Lett 2013; 111:053001. [PMID: 23952391 DOI: 10.1103/physrevlett.111.053001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Indexed: 06/02/2023]
Abstract
We observe "trilobitelike" states of ultracold (85)Rb(2) molecules, in which a ground-state atom is bound by the electronic wave function of its Rydberg-atom partner. We populate these states through the ultraviolet excitation of weakly bound molecules, and access a regime of trilobitelike states at low principal quantum numbers and with vibrational turning points around 35 Bohr radii. This demonstrates that, unlike previous studies that used free-to-bound transitions, trilobitelike states can also be excited through bound-to-bound transitions. This approach provides high excitation probabilities without requiring high-density samples, and affords the ability to control the excitation radius by selection of the initial-state vibrational level.
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Affiliation(s)
- M A Bellos
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046, USA
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Mariappan G, Prabhat P, Sutharson L, Banerjee J, Patangia U, Nath S. Synthesis and Antidiabetic Evaluation of Benzothiazole Derivatives. Journal of the Korean Chemical Society 2012. [DOI: 10.5012/jkcs.2012.56.2.251] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lowthian J, Cameron P, Smit D, Newnham H, Hunter P, Brand C, Barker A, Banerjee J, Cooke M. PB10 Safe Elderly Emergency Discharge (SEED) project: determining best practice for safe discharge of the older emergency patient. Emerg Med J 2012. [DOI: 10.1136/emermed-2012-201246.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Agarwal S, Banerjee J, Baker R, Conroy S, Hsu R, Rashid A, Camosso-Stefinovic J, Sinfield P, Habiba M. Potentially avoidable emergency department attendance: interview study of patients' reasons for attendance. Emerg Med J 2011; 29:e3. [PMID: 22205782 DOI: 10.1136/emermed-2011-200585] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To explore the reasons for attendance at the emergency department (ED) by patients who could have been managed in an alternative service and the rate of acute admissions to one acute hospital. DESIGN Interview study. SETTING One acute hospital (University Hospitals of Leicester) in the East Midlands. PARTICIPANTS 23 patients and/or their carers. METHODS A purposive sample of patients attending the ED and the linked urgent care centre was identified and recruited. Patients in the sample were approached by a clinician and a researcher and invited to take part in an interview. Patients of different ethnicities and from different age groups, arriving at the ED via different referral routes (self-referral, emergency ambulance, GP referral, out-of-hours services) and attending at different times of the day and night were included. The interviews were recorded and transcribed with the individuals' permission and analysed using the framework analysis approach. RESULTS Patients' anxiety or concern about the presenting problem, the range of services available to the ED and the perceived efficacy of these services, patients' perceptions of access to alternative services including general practice and lack of alternative pathways were factors that influenced the decision to use the ED. CONCLUSIONS Access to general practice, anxiety about the presenting problem, awareness and perceptions of the efficacy of the services available in the ED and lack of alternative pathways are important predictors of attendance rates.
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Affiliation(s)
- S Agarwal
- NIHR CLAHRC for LNR, Department of Health Sciences, University of Leicester, 22-28 Princess Rd West, Leicester LE1 6TP, UK.
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Bellos MA, Rahmlow D, Carollo R, Banerjee J, Dulieu O, Gerdes A, Eyler EE, Gould PL, Stwalley WC. Formation of ultracold Rb2 molecules in the v'' = 0 level of the a(3)Σ+(u) state via blue-detuned photoassociation to the 1(3)Π(g) state. Phys Chem Chem Phys 2011; 13:18880-6. [PMID: 21909578 DOI: 10.1039/c1cp21383k] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report on the observation of blue-detuned photoassociation in Rb(2), in which vibrational levels are energetically above the corresponding excited atomic asymptote. (85)Rb atoms in a MOT were photoassociated at short internuclear distance to levels of the 1(3)Π(g) state at a rate of approximately 5 × 10(4) molecules s(-1). We have observed most of the predicted vibrational levels for all four spin-orbit components; 0(+)(g), 0(-)(g), 1(g), and 2(g), including levels of the 0(+)(g) outer well. These molecules decay to the metastable a(3)Σ(+)(u) state, some preferentially to the v'' = 0 level, as we have observed for photoassociation to the v' = 8 level of the 1(g) component.
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Affiliation(s)
- M A Bellos
- Department of Physics, University of Connecticut, Storrs, Connecticut 06269-3046, USA.
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Banerjee J, Maitra D, Shaeib F, Saed G, Diamond M, Abu-Soud H. Role of melatonin in preventing hypochlorous acid induced alterations in microtubule and chromosomal structure in metaphase-II mouse oocytes in vitro. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Baker R, Bankart MJ, Rashid A, Banerjee J, Conroy S, Habiba M, Hsu R, Wilson A, Agarwal S, Camosso-Stefinovic J. Characteristics of general practices associated with emergency-department attendance rates: a cross-sectional study. BMJ Qual Saf 2011; 20:953-8. [PMID: 21685185 DOI: 10.1136/bmjqs.2010.050864] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Strategies are needed to contain emergency-department attendance. Quality of care in general practice might influence the use of emergency departments, including management of patients with chronic conditions and access to consultations. AIM The aim was to determine whether emergency-department attendance rates are lower for practices with higher quality and outcomes framework performance and lower for practices with better patient reported access. DESIGN A cross-sectional study. SETTING Two English primary-care trusts, Leicester City and Leicestershire County and Rutland, with 145 general practices. METHOD Using data on attendances at emergency departments in 2006/2007 and 2007/2008, a practice attendance rate was calculated for each practice. In a hierarchical negative binomial regression model, practice population characteristics (deprivation, proportion of patients aged 65 or over, ethnicity, gender) and practice characteristics (total list size, distance from the emergency department, quality and outcomes framework points, and variables measuring satisfaction with access) were included as potential explanatory variables. RESULTS In both years, greater deprivation, shorter distance from the central emergency department, lower practice list size, white ethnicity and lower satisfaction with practice telephone access were associated with higher emergency-department attendance rates. CONCLUSIONS Performance as indicated by the quality and outcomes framework did not predict rates of attendance at emergency departments, but satisfaction with telephone access did. Consideration should be given to improving access to some general practices to contain the use of emergency departments.
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Affiliation(s)
- R Baker
- Department of Health Sciences, University of Leicester, 22-28 Princess Road West, Leicester, UK.
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Bankart MJG, Baker R, Rashid A, Habiba M, Banerjee J, Hsu R, Conroy S, Agarwal S, Wilson A. Characteristics of general practices associated with emergency admission rates to hospital: a cross-sectional study. Emerg Med J 2011; 28:558-63. [PMID: 21515879 DOI: 10.1136/emj.2010.108548] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To identify characteristics of general practices associated with emergency hospital admission rates, and determine whether levels of performance and patient reports of access are associated with admission rates. DESIGN A cross-sectional study. SETTING Two primary care trusts (Leicester City and Leicestershire County and Rutland) in the East Midlands of England. PARTICIPANTS 145 general practices. METHODS Hospital admission data were used to calculate the rate of emergency admissions from 145 practices, for two consecutive years (2006/7 and 2007/8). Practice characteristics (size, distance from principal hospital, quality and outcomes framework performance data, patient reports of access to their practices) and patient characteristics (deprivation, ethnicity, gender and age), were used as predictors in a two-level hierarchical model, developed with data for 2007/8, and evaluated against data for 2006/7. RESULTS Practice characteristics (shorter distance from hospital, smaller list size) and patient characteristics (higher proportion of older people, white ethnicity, increasing deprivation, female gender) were associated with higher admission rates. There was no association with quality and outcomes framework domains (clinical or organisation), but there was an association between patients reporting being able to see a particular general practitioner (GP) and admission rates. As the proportion of patients able to consult a particular GP increased, emergency admission rates declined. CONCLUSIONS The patient characteristics of deprivation, age, ethnicity and gender are important predictors of admission rates. Larger practices and greater distance from a hospital have lower admission rates. Being able to consult a particular GP, an aspect of continuity, is associated with lower emergency admission rates.
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Li X, Martinez-Ferrer M, Botta V, Uwamariya C, Banerjee J, Bhowmick NA. Epithelial Hic-5/ARA55 expression contributes to prostate tumorigenesis and castrate responsiveness. Oncogene 2010; 30:167-77. [PMID: 20818421 PMCID: PMC3021901 DOI: 10.1038/onc.2010.400] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Stromal–epithelial interactions dictate prostate tumorigenesis and response to castration. Hydrogen peroxide-inducible clone 5 (Hic-5/ARA55) is a transforming growth factor-beta (TGF-β)-induced coactivator of androgen receptor (AR) expressed in the prostate stroma. Interestingly, following castration, we identified epithelial expression of Hic-5/ARA55 in mouse and human prostate tissues. To determine the role of epithelial Hic-5 in prostate cancer progression and castration responsiveness, we compared LNCaP cells having Hic-5 stably expressed with the parental LNCaP cells following tissue recombination xenografts with mouse prostate stromal cells. We previously identified knocking out prostate stromal TGF-β signaling potentiated castrate-resistant prostate tumors, in a Wnt-dependent manner. The LNCaP chimeric tumors containing prostate fibroblasts conditionally knocked out for the TGF-β type II receptor (Tgfbr2-KO) resulted in larger, more invasive, and castration-resistant tumors compared those with floxed (control) stromal cells. However, the LNCaP-Hic5 associated with Tgfbr2-KO fibroblasts generated chimeric tumors with reduced tumor volume, lack of invasion and restored castration dependence. Neutralization of canonical Wnt signaling is shown to reduce prostate tumor size and restore regression following castration. Thus, we hypothesized that epithelial Hic-5/ARA55 expression negatively regulated Wnt signaling. The mechanism of the Hic-5/ARA55 effects on castration was determined by analysis of the c-myc promoter. C-myc luciferase reporter activity suggested Hic-5/ARA55 expression inhibited c-myc activity by β-catenin. Sequential ChIP analysis indicated β-catenin and T-cell-specific 4 (TCF4) bound the endogenous c-myc promoter in the absence of Hic-5 expression. However, the formation of a TCF4/Hic-5 repressor complex inhibited c-myc promoter activity, by excluding β-catenin binding with TCF4 on the promoter. The data indicate Hic-5/ARA55 expression in response to castration-enabled epithelial regression through the repression of c-myc gene at the chromatin level.
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Affiliation(s)
- X Li
- The Vanderbilt-Ingram Cancer Center and Department of Urologic Surgery, Vanderbilt University School of Medicine, Nashville, TN, USA
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