1
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Bhattacharya A, Chauhan P, Singh SP, Narayan S, Bajpai RK, Dwivedi A, Mishra A. Bacillus tequilensis influences metabolite production in tomato and restores soil microbial diversity during Fusarium oxysporum infection. Plant Biol (Stuttg) 2024. [PMID: 38682466 DOI: 10.1111/plb.13647] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 02/08/2024] [Indexed: 05/01/2024]
Abstract
This study evaluates cellular damage, metabolite profiling, and defence-related gene expression in tomato plants and soil microflora during Fusarium wilt disease after treatment with B. tequilensis PBE-1. Histochemical analysis showed that PBE-1 was the primary line of defence through lignin deposition and reduced cell damage. GC-MS revealed that PBE-1 treatment ameliorated stress caused by F. oxysporum infection. PBE-1 also improved transpiration, photosynthesis, and stomatal conductance in tomato. qRT-PCR suggested that the defence-related genes FLS2, SERK, NOS, WRKYT, NHO, SAUR, and MYC2, which spread infection, were highly upregulated during F. oxysporum infection, but either downregulated or expressed normally in PBE-1 + P treated plants. This indicates that the plant not only perceives the bio-control agent as a non-pathogen entity but its presence in normal metabolism and gene expression within the host plant is maintained. The study further corroborated findings that application of PBE-1 does not cause ecological disturbances in the rhizosphere. Activity of soil microflora across four treatments, measured by Average Well Colour Development (AWCD), showed continuous increases from weeks 1 to 4 post-pathogen infection, with distinct substrate usage patterns like tannic and fumaric acids impacting microbial energy source utilization and diversity. Principal Component Analysis (PCA) and diversity indices like McIntosh, Shannon, and Simpson further illustrated significant microbial community shifts over the study period. In conclusion, our findings demonstrate that B. tequilensis PBE-1 is an ideal bio-agent for field application during Fusarium wilt disease management in tomato.
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Affiliation(s)
- A Bhattacharya
- Division of Microbial Technology, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - P Chauhan
- Division of Microbial Technology, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- School of Sciences, P P Savani University, Surat, Gujarat, India
| | - S P Singh
- Pharmacognosy Division, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
| | - S Narayan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
- Plant Physiology Laboratory, CSIR-National Botanical Research Institute, Lucknow, India
| | - R K Bajpai
- Ex Director Research Services, Indira Gandhi Krishi Vishwavidyalaya, Raipur, India
| | - A Dwivedi
- Photobiology Division, CSIR-Indian Institute of Toxicology Research, Lucknow, India
| | - A Mishra
- Division of Microbial Technology, CSIR-National Botanical Research Institute, Lucknow, Uttar Pradesh, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
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2
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Oshternian SR, Loipfinger S, Bhattacharya A, Fehrmann RSN. Exploring combinations of dimensionality reduction, transfer learning, and regularization methods for predicting binary phenotypes with transcriptomic data. BMC Bioinformatics 2024; 25:167. [PMID: 38671342 PMCID: PMC11046904 DOI: 10.1186/s12859-024-05795-6] [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: 09/29/2023] [Accepted: 04/22/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Numerous transcriptomic-based models have been developed to predict or understand the fundamental mechanisms driving biological phenotypes. However, few models have successfully transitioned into clinical practice due to challenges associated with generalizability and interpretability. To address these issues, researchers have turned to dimensionality reduction methods and have begun implementing transfer learning approaches. METHODS In this study, we aimed to determine the optimal combination of dimensionality reduction and regularization methods for predictive modeling. We applied seven dimensionality reduction methods to various datasets, including two supervised methods (linear optimal low-rank projection and low-rank canonical correlation analysis), two unsupervised methods [principal component analysis and consensus independent component analysis (c-ICA)], and three methods [autoencoder (AE), adversarial variational autoencoder, and c-ICA] within a transfer learning framework, trained on > 140,000 transcriptomic profiles. To assess the performance of the different combinations, we used a cross-validation setup encapsulated within a permutation testing framework, analyzing 30 different transcriptomic datasets with binary phenotypes. Furthermore, we included datasets with small sample sizes and phenotypes of varying degrees of predictability, and we employed independent datasets for validation. RESULTS Our findings revealed that regularized models without dimensionality reduction achieved the highest predictive performance, challenging the necessity of dimensionality reduction when the primary goal is to achieve optimal predictive performance. However, models using AE and c-ICA with transfer learning for dimensionality reduction showed comparable performance, with enhanced interpretability and robustness of predictors, compared to models using non-dimensionality-reduced data. CONCLUSION These findings offer valuable insights into the optimal combination of strategies for enhancing the predictive performance, interpretability, and generalizability of transcriptomic-based models.
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Affiliation(s)
- S R Oshternian
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - S Loipfinger
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - A Bhattacharya
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands
| | - R S N Fehrmann
- Department of Medical Oncology, University Medical Center Groningen, University of Groningen, P.O. Box 30.001, 9700 RB, Groningen, The Netherlands.
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3
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Butail S, Bhattacharya A, Porfiri M. Estimating hidden relationships in dynamical systems: Discovering drivers of infection rates of COVID-19. Chaos 2024; 34:033117. [PMID: 38457848 DOI: 10.1063/5.0156338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 02/12/2024] [Indexed: 03/10/2024]
Abstract
Discovering causal influences among internal variables is a fundamental goal of complex systems research. This paper presents a framework for uncovering hidden relationships from limited time-series data by combining methods from nonlinear estimation and information theory. The approach is based on two sequential steps: first, we reconstruct a more complete state of the underlying dynamical system, and second, we calculate mutual information between pairs of internal state variables to detail causal dependencies. Equipped with time-series data related to the spread of COVID-19 from the past three years, we apply this approach to identify the drivers of falling and rising infections during the three main waves of infection in the Chicago metropolitan region. The unscented Kalman filter nonlinear estimation algorithm is implemented on an established epidemiological model of COVID-19, which we refine to include isolation, masking, loss of immunity, and stochastic transition rates. Through the systematic study of mutual information between infection rate and various stochastic parameters, we find that increased mobility, decreased mask use, and loss of immunity post sickness played a key role in rising infections, while falling infections were controlled by masking and isolation.
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Affiliation(s)
- S Butail
- Department of Mechanical Engineering, Northern Illinois University, DeKalb, Illinois 60115, USA
| | - A Bhattacharya
- Department of Mechanical Engineering, Northern Illinois University, DeKalb, Illinois 60115, USA
| | - M Porfiri
- Center for Urban Science and Progress, Department of Mechanical and Aerospace Engineering, and Department of Biomedical Engineering, Tandon School of Engineering, New York University, Brooklyn, New York 11201, USA
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4
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Oosting SF, van der Veldt AAM, Fehrmann RSN, Bhattacharya A, van Binnendijk RS, GeurtsvanKessel CH, Dingemans AMC, Smit EF, Hiltermann TJN, den Hartog G, Jalving M, Westphal TT, de Wilt F, Ernst SM, Boerma A, van Zijl L, Rimmelzwaan GF, Kvistborg P, van Els CACM, Rots NY, van Baarle D, Haanen JBAG, de Vries EGE. Factors associated with long-term antibody response after COVID-19 vaccination in patients treated with systemic treatment for solid tumors. ESMO Open 2023; 8:101599. [PMID: 37450950 PMCID: PMC10284446 DOI: 10.1016/j.esmoop.2023.101599] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 06/11/2023] [Indexed: 07/18/2023] Open
Affiliation(s)
- S F Oosting
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - A A M van der Veldt
- Department of Medical Oncology, Erasmus Medical Centre, Rotterdam, the Netherlands; Department of Radiology & Nuclear Medicine, Erasmus Medical Centre, Rotterdam, the Netherlands.
| | - R S N Fehrmann
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - A Bhattacharya
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - R S van Binnendijk
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - C H GeurtsvanKessel
- Department of Viroscience, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - A-M C Dingemans
- Department of Respiratory Medicine, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - E F Smit
- Department of Thoracic Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - T J N Hiltermann
- Department of Pulmonary Diseases, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - G den Hartog
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - M Jalving
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - T T Westphal
- The Netherlands Comprehensive Cancer Organization, Utrecht, the Netherlands
| | - F de Wilt
- Department of Viroscience, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - S M Ernst
- Department of Respiratory Medicine, Erasmus Medical Centre, Rotterdam, the Netherlands
| | - A Boerma
- Department of Medical Microbiology and Infection Prevention University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - L van Zijl
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - G F Rimmelzwaan
- Research Centre for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - P Kvistborg
- Department of Molecular Oncology and Immunology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - C A C M van Els
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - N Y Rots
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - D van Baarle
- Department of Medical Microbiology and Infection Prevention University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | - J B A G Haanen
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - E G E de Vries
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
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5
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de Waard J, Bhattacharya A, de Boer MT, van Hemel BM, Esajas MD, Vermeulen KM, de Bock GH, Schuuring E, Wisman GBA. Identification of a methylation panel as an alternative triage to detect CIN3+ in hrHPV-positive self-samples from the population-based cervical cancer screening programme. Clin Epigenetics 2023; 15:103. [PMID: 37322534 PMCID: PMC10273737 DOI: 10.1186/s13148-023-01517-6] [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: 04/12/2023] [Accepted: 06/03/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND The Dutch population-based cervical cancer screening programme (PBS) consists of primary high-risk human papilloma virus (hrHPV) testing with cytology as triage test. In addition to cervical scraping by a general practitioner (GP), women are offered self-sampling to increase participation. Because cytological examination on self-sampled material is not feasible, collection of cervical samples from hrHPV-positive women by a GP is required. This study aims to design a methylation marker panel to detect CIN3 or worse (CIN3+) in hrHPV-positive self-samples from the Dutch PBS as an alternative triage test for cytology. METHODS Fifteen individual host DNA methylation markers with high sensitivity and specificity for CIN3+ were selected from literature and analysed using quantitative methylation-specific PCR (QMSP) on DNA from hrHPV-positive self-samples from 208 women with CIN2 or less (< CIN2) and 96 women with CIN3+. Diagnostic performance was determined by area under the curve (AUC) of receiver operating characteristic (ROC) analysis. Self-samples were divided into a train and test set. Hierarchical clustering analysis to identify input methylation markers, followed by model-based recursive partitioning and robustness analysis to construct a predictive model, was applied to design the best marker panel. RESULTS QMSP analysis of the 15 individual methylation markers showed discriminative DNA methylation levels between < CIN2 and CIN3+ for all markers (p < 0.05). The diagnostic performance analysis for CIN3+ showed an AUC of ≥ 0.7 (p < 0.001) for nine markers. Hierarchical clustering analysis resulted in seven clusters with methylation markers with similar methylation patterns (Spearman correlation> 0.5). Decision tree modeling revealed the best and most robust panel to contain ANKRD18CP, LHX8 and EPB41L3 with an AUC of 0.83 in the training set and 0.84 in the test set. Sensitivity to detect CIN3+ was 82% in the training set and 84% in the test set, with a specificity of 74% and 71%, respectively. Furthermore, all cancer cases (n = 5) were identified. CONCLUSION The combination of ANKRD18CP, LHX8 and EPB41L3 revealed good diagnostic performance in real-life self-sampled material. This panel shows clinical applicability to replace cytology in women using self-sampling in the Dutch PBS programme and avoids the extra GP visit after a hrHPV-positive self-sampling test.
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Affiliation(s)
- J de Waard
- Department of Gynaecologic Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, PO-Box 30001, 9700 RB, Groningen, The Netherlands
| | - A Bhattacharya
- Department of Medical Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - M T de Boer
- Department of Gynaecologic Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, PO-Box 30001, 9700 RB, Groningen, The Netherlands
| | - B M van Hemel
- Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - M D Esajas
- Department of Obstetrics and Gynaecology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - K M Vermeulen
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - G H de Bock
- Department of Epidemiology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - E Schuuring
- Department of Pathology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - G B A Wisman
- Department of Gynaecologic Oncology, Cancer Research Center Groningen, University of Groningen, University Medical Center Groningen, PO-Box 30001, 9700 RB, Groningen, The Netherlands.
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6
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Schulte PA, Jacklitsch BL, Bhattacharya A, Chun H, Edwards N, Elliott KC, Flynn MA, Guerin R, Hodson L, Lincoln JM, MacMahon KL, Pendergrass S, Siven J, Vietas J. Updated assessment of occupational safety and health hazards of climate change. J Occup Environ Hyg 2023; 20:183-206. [PMID: 37104117 PMCID: PMC10443088 DOI: 10.1080/15459624.2023.2205468] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Workers, particularly outdoor workers, are among the populations most disproportionately affected by climate-related hazards. However, scientific research and control actions to comprehensively address these hazards are notably absent. To assess this absence, a seven-category framework was developed in 2009 to characterize the scientific literature published from 1988-2008. Using this framework, a second assessment examined the literature published through 2014, and the current one examines literature from 2014-2021. The objectives were to present literature that updates the framework and related topics and increases awareness of the role of climate change in occupational safety and health. In general, there is substantial literature on worker hazards related to ambient temperatures, biological hazards, and extreme weather but less on air pollution, ultraviolet radiation, industrial transitions, and the built environment. There is growing literature on mental health and health equity issues related to climate change, but much more research is needed. The socioeconomic impacts of climate change also require more research. This study illustrates that workers are experiencing increased morbidity and mortality related to climate change. In all areas of climate-related worker risk, including geoengineering, research is needed on the causality and prevalence of hazards, along with surveillance to identify, and interventions for hazard prevention and control.
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Affiliation(s)
- P. A. Schulte
- Advanced Technologies and Laboratories International, Inc, Cincinnati, Ohio
| | - B. L. Jacklitsch
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
| | - A. Bhattacharya
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
| | - H. Chun
- Centers for Disease Control and Prevention (CDC), National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Atlanta, Georgia
| | - N. Edwards
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Morgantown, West Virginia
| | - K. C. Elliott
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Anchorage, Alaska
| | - M. A. Flynn
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
| | - R. Guerin
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
| | - L. Hodson
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH) (retired), Cincinnati, Ohio
| | - J. M. Lincoln
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
| | - K. L. MacMahon
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
| | - S. Pendergrass
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH) (retired), Cincinnati, Ohio
| | - J. Siven
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
| | - J. Vietas
- Centers for Disease Control and Prevention (CDC), National Institute for Occupational Safety and Health (NIOSH), Cincinnati, Ohio
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7
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Das C, Adhikari S, Bhattacharya A, Chakraborty S, Mondal P, Yadav SS, Adhikary S, Hunt CR, Yadav KK, Pandita S, Roy S, Tainer JA, Ahmed Z, Pandita TK. Epigenetic-Metabolic Interplay in the DNA Damage Response and Therapeutic Resistance of Breast Cancer. Cancer Res 2023; 83:657-666. [PMID: 36661847 DOI: 10.1158/0008-5472.can-22-3015] [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] [Received: 09/30/2022] [Revised: 11/30/2022] [Accepted: 01/04/2023] [Indexed: 01/21/2023]
Abstract
Therapy resistance is imposing a daunting challenge on effective clinical management of breast cancer. Although the development of resistance to drugs is multifaceted, reprogramming of energy metabolism pathways is emerging as a central but heterogenous regulator of this therapeutic challenge. Metabolic heterogeneity in cancer cells is intricately associated with alterations of different signaling networks and activation of DNA damage response pathways. Here we consider how the dynamic metabolic milieu of cancer cells regulates their DNA damage repair ability to ultimately contribute to development of therapy resistance. Diverse epigenetic regulators are crucial in remodeling the metabolic landscape of cancer. This epigenetic-metabolic interplay profoundly affects genomic stability of the cancer cells as well as their resistance to genotoxic therapies. These observations identify defining mechanisms of cancer epigenetics-metabolism-DNA repair axis that can be critical for devising novel, targeted therapeutic approaches that could sensitize cancer cells to conventional treatment strategies.
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Affiliation(s)
- Chandrima Das
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, India.,Homi Bhaba National Institute, Mumbai, India
| | - Swagata Adhikari
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, India.,Homi Bhaba National Institute, Mumbai, India
| | - Apoorva Bhattacharya
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, India
| | | | - Payel Mondal
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, India.,Homi Bhaba National Institute, Mumbai, India
| | - Shalini S Yadav
- The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Santanu Adhikary
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, India.,Structural Biology and Bioinformatics Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
| | | | - Kamlesh K Yadav
- Center for Genomics and Precision Medicine, Texas A&M College of Medicine, Houston, Texas
| | - Shruti Pandita
- University of Texas Health San Antonio MD Anderson Cancer Center, San Antonio, Texas
| | - Siddhartha Roy
- Structural Biology and Bioinformatics Division, Council of Scientific and Industrial Research (CSIR)-Indian Institute of Chemical Biology, Kolkata, India
| | - John A Tainer
- The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zamal Ahmed
- The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Tej K Pandita
- Houston Methodist Research Institute, Houston, Texas.,Center for Genomics and Precision Medicine, Texas A&M College of Medicine, Houston, Texas
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8
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van der Veldt AAM, Oosting SF, Fehrmann RSN, GeurtsvanKessel CH, van Binnendijk RS, Dingemans AMC, Smit EF, Hiltermann TJN, Hartog GD, Jalving M, Westphal TT, Bhattacharya A, de Wilt F, Ernst SM, Boerma A, van Zijl L, Rimmelzwaan GF, Kvistborg P, van Els CACM, Rots NY, van Baarle D, Haanen JBAG, de Vries EGE. One-year data on immunogenicity and breakthrough infections in patients with solid tumors vaccinated against COVID-19 during systemic cancer treatment. ESMO Open 2023; 8:100785. [PMID: 36764094 PMCID: PMC9829609 DOI: 10.1016/j.esmoop.2023.100785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 01/11/2023] Open
Affiliation(s)
- A A M van der Veldt
- Department of Medical Oncology, Erasmus Medical Centre, Rotterdam, Netherlands; Radiology & Nuclear Medicine, Erasmus Medical Centre, Rotterdam, Netherlands.
| | - S F Oosting
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - R S N Fehrmann
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | | | - R S van Binnendijk
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - A-M C Dingemans
- Department of Respiratory Medicine Erasmus Medical Centre, Rotterdam, Netherlands
| | - E F Smit
- Department of Thoracic Oncology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - T J N Hiltermann
- Department of Pulmonary Diseases, University Medical Centre Groningen, Amsterdam, Netherlands
| | - G den Hartog
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - M Jalving
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - T T Westphal
- Comprehensive Cancer Organization the Netherlands, Utrecht, Netherlands
| | - A Bhattacharya
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - F de Wilt
- Department of Viroscience, Erasmus Medical Centre, Rotterdam, Netherlands
| | - S M Ernst
- Department of Respiratory Medicine Erasmus Medical Centre, Rotterdam, Netherlands
| | - A Boerma
- Department of Medical Microbiology and Infection Prevention, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - L van Zijl
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - G F Rimmelzwaan
- Research Centre for Emerging Infections and Zoonoses, University of Veterinary Medicine Hannover, Hannover, Germany
| | - P Kvistborg
- Department of Molecular Oncology and Immunology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - C A C M van Els
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands; Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
| | - N Y Rots
- Centre for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, Netherlands
| | - D van Baarle
- Department of Medical Microbiology and Infection Prevention, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
| | - J B A G Haanen
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - E G E de Vries
- Department of Medical Oncology, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands
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9
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Bhattacharya A, Maitra D. A comparative analysis between vertical rectus abdominis myocutaneous (VRAM) flap and transverse rectus abdominis myocutaneous (TRAM) flap as options for post-mastectomy chest wall reconstruction. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01400-9] [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: 11/19/2022]
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Sohn SY, Russell CD, Jamjoom AAB, Poon MT, Lawson McLean A, Ahmed AI, Abdulla MAH, Alalade A, Bailey M, Basu S, Baudracco I, Bayston R, Bhattacharya A, Bodkin P, Boissaud-Cooke M, Bojanic S, Brennan PM, Bulters DO, Buxton N, Chari A, Corns R, Coulter C, Coulter I, Critchley G, Dando A, Dardis R, Duddy J, Dyson E, Edwards R, Garnett M, Gatcher S, Georges H, Glancz LJ, Gray WP, Hallet J, Harte J, Haylock-Vize P, Hutchinson PJ, Humphreys H, Jenkinson MD, Joannides AJ, Kandasamy J, Kitchen J, Kolias AG, Loan JJM, Ma R, Madder H, Mallucci CL, Manning A, Mcelligott S, Mukerji N, Narayanamurthy H, O’Brien D, Okasha M, Papadopoulos M, Phan V, Phang I, Poots J, Rajaraman C, Roach J, Ross N, Sharouf F, Shastin D, Simms N, Steele L, Solth A, Tajsic T, Talibi S, Thanabalasundaram G, Vintu M, Wan Y, Wang D, Watkins L, Whitehouse K, Whitfield PC, Williams A, Zaben M. Comparison of suspected and confirmed internal EVD-related infections: a prospective multi-centre U.K. observational study. Open Forum Infect Dis 2022; 9:ofac480. [PMID: 36267249 PMCID: PMC9578167 DOI: 10.1093/ofid/ofac480] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Background Diagnosis of internal external ventricular drain (EVD)-related infections (iERI) is an area of diagnostic difficulty. Empiric treatment is often initiated on clinical suspicion. There is limited guidance around antimicrobial management of confirmed versus suspected iERI. Methods Data on patients requiring EVD insertion were collected from 21 neurosurgical units in the United Kingdom from 2014 to 2015. Confirmed iERI was defined as clinical suspicion of infection with positive cerebrospinal fluid (CSF) culture and/or Gram stain. Cerebrospinal fluid, blood, and clinical parameters and antimicrobial management were compared between the 2 groups. Mortality and Modified Rankin Scores were compared at 30 days post-EVD insertion. Results Internal EVD-related infection was suspected after 46 of 495 EVD insertions (9.3%), more common after an emergency insertion. Twenty-six of 46 were confirmed iERIs, mostly due to Staphylococci (16 of 26). When confirmed and suspected infections were compared, there were no differences in CSF white cell counts or glucose concentrations, nor peripheral blood white cell counts or C-reactive protein concentrations. The incidence of fever, meningism, and seizures was also similar, although altered consciousness was more common in people with confirmed iERI. Broad-spectrum antimicrobial usage was prevalent in both groups with no difference in median duration of therapy (10 days [interquartile range {IQR}, 7–24.5] for confirmed cases and 9.5 days [IQR, 5.75–14] for suspected, P = 0.3). Despite comparable baseline characteristics, suspected iERI was associated with lower mortality and better neurological outcomes. Conclusions Suspected iERI could represent sterile inflammation or lower bacterial load leading to false-negative cultures. There is a need for improved microbiology diagnostics and biomarkers of bacterial infection to permit accurate discrimination and improve antimicrobial stewardship.
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Affiliation(s)
- Sei Yon Sohn
- Division of Anaesthesia, University of Cambridge , Cambridge , U.K
| | - Clark D Russell
- University of Edinburgh Centre for Inflammation Research, Queen’s Medical Research Institute , Edinburgh , U.K
| | - Aimun AB Jamjoom
- Department of Clinical Neuroscience, Royal Infirmary of Edinburgh , Edinburgh , U.K
| | - Michael T Poon
- Department of Clinical Neuroscience, Royal Infirmary of Edinburgh , Edinburgh , U.K
| | - Aaron Lawson McLean
- Department of Neurosurgery, Jena University Hospital – Friedrich Schiller University Jena , Jena , Germany
| | - Aminul I Ahmed
- Wolfson CARD, King’s College London and Department of Neurosurgery, King’s College Hospital , London , U.K
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Saxena M, Singh PS, Bhattacharya A. Composite Membranes Prepared by Polyvinyl Alcohol-Maleic Acid onto Polysulfone: Separation Performance of Tea Polyphenol. Macromol Res 2022. [DOI: 10.1007/s13233-022-0064-2] [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: 11/24/2022]
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Adhikari S, Bhattacharya A, Adhikary S, Singh V, Gadad S, Roy S, Das C. The paradigm of drug resistance in cancer: an epigenetic perspective. Biosci Rep 2022; 42:BSR20211812. [PMID: 35438143 PMCID: PMC9069444 DOI: 10.1042/bsr20211812] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 12/12/2022] Open
Abstract
Innate and acquired resistance towards the conventional therapeutic regimen imposes a significant challenge for the successful management of cancer for decades. In patients with advanced carcinomas, acquisition of drug resistance often leads to tumor recurrence and poor prognosis after the first therapeutic cycle. In this context, cancer stem cells (CSCs) are considered as the prime drivers of therapy resistance in cancer due to their 'non-targetable' nature. Drug resistance in cancer is immensely influenced by different properties of CSCs such as epithelial-to-mesenchymal transition (EMT), a profound expression of drug efflux pump genes, detoxification genes, quiescence, and evasion of apoptosis, has been highlighted in this review article. The crucial epigenetic alterations that are intricately associated with regulating different mechanisms of drug resistance, have been discussed thoroughly. Additionally, special attention is drawn towards the epigenetic mechanisms behind the interaction between the cancer cells and their microenvironment which assists in tumor progression and therapy resistance. Finally, we have provided a cumulative overview of the alternative treatment strategies and epigenome-modifying therapies that show the potential of sensitizing the resistant cells towards the conventional treatment strategies. Thus, this review summarizes the epigenetic and molecular background behind therapy resistance, the prime hindrance of present day anti-cancer therapies, and provides an account of the novel complementary epi-drug-based therapeutic strategies to combat drug resistance.
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Affiliation(s)
- Swagata Adhikari
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Homi Bhaba National Institute, Mumbai 400094, India
| | - Apoorva Bhattacharya
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
| | - Santanu Adhikary
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Vipin Singh
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Homi Bhaba National Institute, Mumbai 400094, India
| | - Shrikanth S. Gadad
- Department of Molecular and Translational Medicine, Center of Emphasis in Cancer, Texas Tech University Health Sciences Center El Paso, El Paso, TX, U.S.A
- Mays Cancer Center, UT Health San Antonio MD Anderson Cancer Center, San Antonio, TX 78229, U.S.A
| | - Siddhartha Roy
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Chandrima Das
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Homi Bhaba National Institute, Mumbai 400094, India
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Ochatt S, Alan AR, Bhattacharya A, Hano C, Kiselev KV, Marconi PL, Otoni WC, Park SY, Tang KX, Weathers PJ. Secondary metabolites: a boon from plants, the best chemist in nature: preface from the editors. Plant Cell Tissue Organ Cult 2022; 149:1-6. [PMID: 35369037 PMCID: PMC8959786 DOI: 10.1007/s11240-022-02289-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- S. Ochatt
- Agroécologie, InstitutAgro Dijon, INRAE, Univ. Bourgogne Franche-Comté, 21000 Dijon, France
| | - A. R. Alan
- Pamukkale University, Kinikli/Denizli, 20017 Pamukkale, Turkey
| | - A. Bhattacharya
- CSIR-Institute of Himalayan Bioresource Technology, Palampur, Himachal Pradesh 176061 India
| | - C. Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, Université d’Orléans, Eure & Loir Campus, Chartres, France
| | - K. V. Kiselev
- Institute of Biology and Soil Science, Department Biotechnology, Far East Branch of Russian Academy of Sciences, Vladivostok, 690034 Russia
| | - P. L. Marconi
- Faculty Biology- CEBBAD. Laboratory of Environmental Biotechnology, Maimónides University -CONICET, Ciudad de Buenos Aires, 1405 Argentina
| | - W. C. Otoni
- Plant Biology Department/BIOAGRO, Federal University of Viçosa, University Campus, Viçosa, MG 36570-900 Brazil
| | - S. Y. Park
- Department of Horticultural Sciences, Chungbuk National University, Cheongju, 28644 Republic of Korea
| | - K. X. Tang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - P. J. Weathers
- Worcester Polytechnic Institute, Worcester, MA 01609 USA
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Mondal A, Bhattacharya A, Singh V, Pandita S, Bacolla A, Pandita RK, Tainer JA, Ramos KS, Pandita TK, Das C. Stress Responses as Master Keys to Epigenomic Changes in Transcriptome and Metabolome for Cancer Etiology and Therapeutics. Mol Cell Biol 2022; 42:e0048321. [PMID: 34748401 PMCID: PMC8773053 DOI: 10.1128/mcb.00483-21] [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] [Indexed: 11/20/2022] Open
Abstract
From initiation through progression, cancer cells are subjected to a magnitude of endogenous and exogenous stresses, which aid in their neoplastic transformation. Exposure to these classes of stress induces imbalance in cellular homeostasis and, in response, cancer cells employ informative adaptive mechanisms to rebalance biochemical processes that facilitate survival and maintain their existence. Different kinds of stress stimuli trigger epigenetic alterations in cancer cells, which leads to changes in their transcriptome and metabolome, ultimately resulting in suppression of growth inhibition or induction of apoptosis. Whether cancer cells show a protective response to stress or succumb to cell death depends on the type of stress and duration of exposure. A thorough understanding of epigenetic and molecular architecture of cancer cell stress response pathways can unveil a plethora of information required to develop novel anticancer therapeutics. The present view highlights current knowledge about alterations in epigenome and transcriptome of cancer cells as a consequence of exposure to different physicochemical stressful stimuli such as reactive oxygen species (ROS), hypoxia, radiation, hyperthermia, genotoxic agents, and nutrient deprivation. Currently, an anticancer treatment scenario involving the imposition of stress to target cancer cells is gaining traction to augment or even replace conventional therapeutic regimens. Therefore, a comprehensive understanding of stress response pathways is crucial for devising and implementing novel therapeutic strategies.
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Affiliation(s)
- Atanu Mondal
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India
- Homi Bhaba National Institute, Mumbai, India
| | - Apoorva Bhattacharya
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India
| | - Vipin Singh
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India
- Homi Bhaba National Institute, Mumbai, India
| | - Shruti Pandita
- Division of Hematology and Medical Oncology, St. Louis University, St. Louis, Missouri, USA
| | - Albino Bacolla
- Department of Molecular and Cellular Oncology, University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Raj K. Pandita
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
| | - John A. Tainer
- Department of Molecular and Cellular Oncology, University of Texas M.D. Anderson Cancer Center, Houston, Texas, USA
| | - Kenneth S. Ramos
- Center for Genomics and Precision Medicine, Texas A&M College of Medicine, Houston, Texas, USA
| | - Tej K. Pandita
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
- Center for Genomics and Precision Medicine, Texas A&M College of Medicine, Houston, Texas, USA
| | - Chandrima Das
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, Kolkata, India
- Homi Bhaba National Institute, Mumbai, India
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Nagasaka M, Goto K, Gomez J, Hida T, Shu C, Lee C, Park K, Cho B, Lee J, Ou S, Bestvina C, Natale R, Haddish-Berhane N, Bhattacharya A, Verheijen R, Agrawal T, Knoblauch R, Govindan R. P50.04 Amivantamab in Combination With Chemotherapy in Patients With Advanced Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.532] [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: 10/20/2022]
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Leeuwenburgh VC, Urzúa-Traslaviña CG, Bhattacharya A, Walvoort MTC, Jalving M, de Jong S, Fehrmann RSN. Robust metabolic transcriptional components in 34,494 patient-derived cancer-related samples and cell lines. Cancer Metab 2021; 9:35. [PMID: 34565468 PMCID: PMC8474886 DOI: 10.1186/s40170-021-00272-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 09/09/2021] [Indexed: 12/25/2022] Open
Abstract
Background Patient-derived bulk expression profiles of cancers can provide insight into the transcriptional changes that underlie reprogrammed metabolism in cancer. These profiles represent the average expression pattern of all heterogeneous tumor and non-tumor cells present in biopsies of tumor lesions. Hence, subtle transcriptional footprints of metabolic processes can be concealed by other biological processes and experimental artifacts. However, consensus independent component analyses (c-ICA) can capture statistically independent transcriptional footprints of both subtle and more pronounced metabolic processes. Methods We performed c-ICA with 34,494 bulk expression profiles of patient-derived tumor biopsies, non-cancer tissues, and cell lines. Gene set enrichment analysis with 608 gene sets that describe metabolic processes was performed to identify the transcriptional components enriched for metabolic processes (mTCs). The activity of these mTCs was determined in all samples to create a metabolic transcriptional landscape. Results A set of 555 mTCs was identified of which many were robust across different datasets, platforms, and patient-derived tissues and cell lines. We demonstrate how the metabolic transcriptional landscape defined by the activity of these mTCs in samples can be used to explore the associations between the metabolic transcriptome and drug sensitivities, patient outcomes, and the composition of the immune tumor microenvironment. Conclusions To facilitate the use of our transcriptional metabolic landscape, we have provided access to all data via a web portal (www.themetaboliclandscapeofcancer.com). We believe this resource will contribute to the formulation of new hypotheses on how to metabolically engage the tumor or its (immune) microenvironment. Supplementary Information The online version contains supplementary material available at 10.1186/s40170-021-00272-7.
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Affiliation(s)
- V C Leeuwenburgh
- Department of Medical Oncology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Chemical Biology, Stratingh Institute for Chemistry, University of Groningen, Groningen, The Netherlands
| | - C G Urzúa-Traslaviña
- Department of Medical Oncology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - A Bhattacharya
- Department of Medical Oncology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M T C Walvoort
- Department of Chemical Biology, Stratingh Institute for Chemistry, University of Groningen, Groningen, The Netherlands
| | - M Jalving
- Department of Medical Oncology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - S de Jong
- Department of Medical Oncology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - R S N Fehrmann
- Department of Medical Oncology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
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Agrawal T, Artis E, Xie J, Bhattacharya A, Haddish-Berhane N, Gopen T, Curtin J, Karkera J, Roshak A, Knoblauch R, Patel K. P76.74 PAPILLON: Randomized Phase 3 Study of Amivantamab Plus Chemotherapy vs Chemotherapy Alone in EGFR Exon20ins NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1131] [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: 10/21/2022]
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Barman C, Rath P, Bhattacharya A. A Non-Fourier Bioheat Transfer Model for Cryosurgery of Tumor Tissue with Minimum Collateral Damage. Comput Methods Programs Biomed 2021; 200:105857. [PMID: 33280936 DOI: 10.1016/j.cmpb.2020.105857] [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: 09/04/2020] [Accepted: 11/15/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND AND OBJECTIVES Incorporation of non-Fourier heat conduction while studying heat transfer phenomena in biological materials has emerged has an important approach as it predicts better and more realistic results than Fourier based models. In this article we have proposed a non-Fourier computational model and applied the same to simulate cryosurgery of lung tumor and attempted minimization of freezing damage of healthy lung tissue using pulsed laser irradiation. METHODS A non-Fourier bioheat transfer model for phase change in biological tissues is solved via a Fourier heat conduction based solution approach. A unified model is proposed combining all variants of bioheat models: Fourier's heat conduction based Pennes' bioheat model, hyperbolic heat conduction model and dual phase lag model. The proposed model takes into account the different thermophysical properties of frozen and unfrozen regions. In order to mimic the actual biotransport process, the blood perfusion and metabolic heat generation are switched off in the frozen region. Implicit source based enthalpy method is used to model phase change process. A new iterative enthalpy update equation is developed for capturing evolution of freezing front implicitly. Finite Volume based numerical discretization technique is used to discretize the governing PDE. The resulting discrete algebraic equation set is solved implicitly by Tri-diagonal Matrix Algorithm. The proposed model is verified with existing results from the literature. RESULTS For Fourier heat conduction, freezing time of 99.99% of tumor is 1247s, which increases to 1267s for τq= 5s (τT= 0s) and again reduces to 1255s for τq= 5s and τT= 3s. τq and τT are phase lag parameters for non-Fourier heat conduction. For τq= 5s and τT= 0.05s, the freezing damage of healthy tissue decreases by 23.76% when pulsed laser irradiation (Io = 106 W/m2) is used to warm the neighboring healthy tissue. CONCLUSIONS So non-Fourier bioheat transport models are better and more accurate in predicting temperature history, freezing time and freezing front propagation as compared to Fourier based models. Pulsed laser irradiation can prove to be a very efficient technique in minimizing collateral damage during cryosurgery.
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Affiliation(s)
- C Barman
- Heat Transfer Laboratory, School of Mechanical Sciences, Indian Institute of Technology, Bhubaneswar, Odisha, India, 752050
| | - P Rath
- Heat Transfer Laboratory, School of Mechanical Sciences, Indian Institute of Technology, Bhubaneswar, Odisha, India, 752050.
| | - A Bhattacharya
- Heat Transfer Laboratory, School of Mechanical Sciences, Indian Institute of Technology, Bhubaneswar, Odisha, India, 752050
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Bhattacharya A, Mukherjee S, Khan P, Banerjee S, Dutta A, Banerjee N, Sengupta D, Basak U, Chakraborty S, Dutta A, Chattopadhyay S, Jana K, Sarkar DK, Chatterjee S, Das T. SMAR1 repression by pluripotency factors and consequent chemoresistance in breast cancer stem-like cells is reversed by aspirin. Sci Signal 2020; 13:13/654/eaay6077. [PMID: 33082288 DOI: 10.1126/scisignal.aay6077] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The high abundance of drug efflux pumps in cancer stem cells (CSCs) contributes to chemotherapy resistance. The transcriptional regulator SMAR1 suppresses CSC expansion in colorectal cancer, and increased abundance of SMAR1 is associated with better prognosis. Here, we found in breast tumors that the expression of SMAR1 was decreased in CSCs through the cooperative interaction of the pluripotency factors Oct4 and Sox2 with the histone deacetylase HDAC1. Overexpressing SMAR1 sensitized CSCs to chemotherapy through SMAR1-dependent recruitment of HDAC2 to the promoter of the gene encoding the drug efflux pump ABCG2. Treating cultured CSCs or 4T1 tumor-bearing mice with the nonsteroidal anti-inflammatory drug aspirin restored SMAR1 expression and ABCG2 repression and enhanced tumor sensitivity to doxorubicin. Our findings reveal transcriptional mechanisms regulating SMAR1 that also regulate cancer stemness and chemoresistance and suggest that, by restoring SMAR1 expression, aspirin might enhance chemotherapeutic efficacy in patients with stem-like tumors.
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Affiliation(s)
- Apoorva Bhattacharya
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Shravanti Mukherjee
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Poulami Khan
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Shruti Banerjee
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Apratim Dutta
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Nilanjan Banerjee
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Debomita Sengupta
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Udit Basak
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Sourio Chakraborty
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Abhishek Dutta
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Samit Chattopadhyay
- Department of Biological Sciences, BITS-Pilani, K K Birla Goa Campus, NH 17B, Zuarinagar, Goa-403 726, India
| | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Diptendra K Sarkar
- Department of Surgery, IPGMER and SSKM Hospital, Kolkata- 700 020, India
| | - Subhrangsu Chatterjee
- Department of Biophysics, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India
| | - Tanya Das
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme VII M, Kolkata-700 054, India.
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Naik K, Janal MN, Chen J, Bandary D, Brar B, Zhang S, Dolan JC, Schmidt BL, Albertson DG, Bhattacharya A. The Histopathology of Oral Cancer Pain in a Mouse Model and a Human Cohort. J Dent Res 2020; 100:194-200. [PMID: 33030108 DOI: 10.1177/0022034520961020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Oral cancer patients often have severe, chronic, and mechanically induced pain at the site of the primary cancer. Oral cancer pain is initiated and maintained in the cancer microenvironment and attributed to release of mediators that sensitize primary sensory nerves. This study was designed to investigate the histopathology associated with painful oral cancers in a preclinical model. The relationship of pain scores with pathologic variables was also investigated in a cohort of 72 oral cancer patients. Wild-type mice were exposed to the carcinogen, 4-nitroquinoline 1-oxide (4NQO). Nociceptive (pain) behavior was measured with the dolognawmeter, an operant device and assay for measuring functional and mechanical allodynia. Lesions developed on the tongues and esophagi of the 4NQO-treated animals and included hyperkeratoses, papillomas, dysplasias, and cancers. Papillomas included lesions with benign and dysplastic pathological features. Two histologic subtypes of squamous cell carcinomas (SCCs) were identified-SCCs with exophytic and invasive components associated with papillary lesions (pSCCs) and invasive SCCs without exophytic histology (iSCCs). Only the pSCC subtype of tongue cancer was associated with nociceptive behavior. Increased tumor size was associated with greater nociceptive behavior in the mouse model and more pain experienced by oral cancer patients. In addition, depth of invasion was associated with patient-reported pain. The pSCC histology identifies 4NQO-induced tongue cancers that are expected to be enriched for expression and release of nociceptive mediators.
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Affiliation(s)
- K Naik
- Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, NY, USA
| | - M N Janal
- Department of Epidemiology and Health Promotion, New York University College of Dentistry, New York, NY, USA
| | - J Chen
- New York University College of Dentistry, New York, NY, USA
| | - D Bandary
- New York University College of Dentistry, New York, NY, USA
| | - B Brar
- New York University College of Dentistry, New York, NY, USA
| | - S Zhang
- New York University College of Dentistry, New York, NY, USA
| | - J C Dolan
- Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, NY, USA
| | - B L Schmidt
- Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, NY, USA
| | - D G Albertson
- Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, NY, USA
| | - A Bhattacharya
- Department of Oral and Maxillofacial Surgery, New York University College of Dentistry, New York, NY, USA
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Bhattacharya A, Lenka A, Thomas M, Yadav R, Pal PK. Kinematic analysis of handwriting in patients of Parkinson's disease using various machine learning algorithms. Parkinsonism Relat Disord 2020. [DOI: 10.1016/j.parkreldis.2020.06.337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Glazer R, Gao S, Yuan H, Ranjit S, Lu J, Xiang H, Bhattacharya A, Brandish P, Levi M. Targeting immune tolerance and stromal fibrosis with an LXR agonist in a conditional transgenic model of mammary fibrosis. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31117-5] [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: 10/23/2022]
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Kavanal AJ, Bhattacharya A, Sharma A, Shukla J, Chattopadhyay A, Vatsa R, Rana N, Kaur G, Mittal BR. THU0531 A PROSPECTIVE STUDY EVALUATING THE ROLE OF 68GA-RGD2 PET/CT ANGIOGENESIS IMAGING IN ASSESSING DISEASE ACTIVITY AND TREATMENT RESPONSE IN RHEUMATOID ARTHRITIS AND ITS COMPARISON WITH DAS28. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.3276] [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: 11/04/2022]
Abstract
Background:PET/CT imaging of synovial angiogenesis using68Ga-RGD (cyclic tripeptide agent targeting αvβ3integrin) to study disease activity in rheumatoid arthritis (RA) has been demonstrated earlier in a few patients. However, post treatment changes in disease activity on68Ga-RGD2PET/CT imaging have not been adequately assessed.Objectives:To compare the performance of68Ga-RGD2PET/CT with disease activity score (DAS) 28 in assessing disease activity and treatment response in RA.Methods:Thirty patients (24F, 6M) aged 43±12 years with clinically diagnosed RA were prospectively studied. After calculation of DAS28 by a rheumatologist, all 30 patients underwent68Ga-RGD2PET/CT scan. Of these, 27 patients underwent a second68Ga-RGD2PET/CT scan and clinical assessment after at least 3 months of treatment. Total body and regional images of the upper limbs were acquired and interpreted by two nuclear medicine physicians blinded to the clinical findings. Joints showing focally increased tracer uptake compared to the background were considered positive and joints showing uptake equal to or less than background were considered negative. Data of 30 patients were used for inter-observer and inter-modality agreement calculations. Changes in PET parameters and DAS28 were compared in 27 patients to assess treatment response.Results:Out of 1560 joints examined in the initial scan, 394 were positive on PET/CT compared to 348 on clinical evaluation. Inter-observer agreement between nuclear medicine physicians was excellent (Cohen’s kappa 0.92, p<0.05) and inter-modality agreement between PET and clinical examination was moderate (Cohen’s kappa 0.55, p<0.05). The DAS28 and SUVmax values (highest and average) of 27 patients showed significant reduction on follow-up compared to the initial evaluation. There was significant correlation between percentage change in DAS28 and percentage change in scan parameters like PET positive joint counts (0.689, p<0.001), average SUVmax (0.712, p<0.001) and highest SUVmax values (0.558, p=0.003) of scan-positive joints in 27 patients. Additional advantages of68Ga-RGD2PET/CT included objective assessment, whole body evaluation of all small and large joints, and greater reproducibility.Conclusion:68Ga-RGD2PET/CT is a promising tool for objective assessment of disease activity and treatment response in patients with RA.Table 1.Clinical and PET parameters of the patientsParameterInitial data (n=27)Mean (SD)/Median (IQR)Follow-up data (n=27)Mean (SD)/Median (IQR)TJC(28)10 (5-13)3 (2-4)SJC(28)6 (3-7)1 (0-2)ESR25 (20-41)24 (18-35)PtGA6.0 (5.0-6.0)3.0 (2.0-4.0)DAS28(3)5.14 (0.85)3.74 (0.88)DAS28(4)5.60 (0.90)3.80 (0.96)PET positive Joints12 (7-8)4 (2-9)aSUVmax2.08 (1.68-2.52)1.79 (1.00-2.06)hSUVmax3.45 (2.71-4.70)3.34 (1.95-4.25)TJC/SJC: tender/swollen joint counts; ESR: erythrocyte sedimentation rate; PtGA: patients global assessment scale; DAS: disease activity score; aSUVmax/hSUVmax: average/highest SUVmax (maximum standardized uptake value); SD: standard deviation; IQR: interquartile rangeFigure 1.68Ga-RGD2PET scan of a 26-year female RA patient on treatment.A.Initial scan shows increased tracer uptake in multiple joints of upper and lower limbs and tendon sheaths of hands and ankle region (arrows); DAS28 was 4.56 (moderate disease activity) and ESR 12 mm/1sthour.B. Follow-up scan after 4 months shows resolution of tracer activity in the previously involved joints with only a mild focus persisting in the left knee joint; DAS28 was 1.73 (clinical remission according to ARA) and ESR 08 mm/1sthour.Acknowledgments:This study was supported by Indian Council of Medical Research, New Delhi [grant no.3/2/June-2017/PG-Thesis-HRD (23)]Disclosure of Interests:None declared
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Purkait S, Bhattacharya A, Bag A, Chattopadhyay R. Evaluation of antibiofilm efficacy of essential oil components β‐caryophyllene, cinnamaldehyde and eugenol alone and in combination against biofilm formation and preformed biofilms of
Listeria monocytogenes
and
Salmonella typhimurium. Lett Appl Microbiol 2020; 71:195-202. [DOI: 10.1111/lam.13308] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 04/25/2020] [Accepted: 04/27/2020] [Indexed: 12/20/2022]
Affiliation(s)
- S. Purkait
- Agricultural and Ecological Research Unit Indian Statistical Institute Kolkata India
| | - A. Bhattacharya
- Agricultural and Ecological Research Unit Indian Statistical Institute Kolkata India
| | - A. Bag
- Agricultural and Ecological Research Unit Indian Statistical Institute Kolkata India
| | - R.R. Chattopadhyay
- Agricultural and Ecological Research Unit Indian Statistical Institute Kolkata India
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Banerjee S, Mukherjee S, Bhattacharya A, Basak U, Chakraborty S, Paul S, Khan P, Jana K, Hazra TK, Das T. Pyridoxine enhances chemo-responsiveness of breast cancer stem cells via redox reconditioning. Free Radic Biol Med 2020; 152:152-165. [PMID: 32145302 DOI: 10.1016/j.freeradbiomed.2020.02.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 02/28/2020] [Indexed: 12/14/2022]
Abstract
A plethora of molecular strategies are employed by breast cancer stem cells (bCSCs) to evade chemotherapy-induced death signals, redox modulation being a crucial factor among those. Here, we observed that bCSCs are resistant to DNA damage and generate low ROS upon doxorubicin (Dox) treatment. Further exploration revealed inherently high NEIL2, a base excision repair (BER) enzyme that plays a key regulatory role in repairing DNA damage, in bCSCs. However, its role in modulating the redox status of bCSCs remains unexplored. In addition, Dox not only upregulates NEIL2 in bCSCs at both transcriptional and translational levels but also declines p300-induced acetylation thus activating NEIL2 and providing a protective effect against the stress inflicted by the genotoxic drug. However, when the redox status of bCSCs is altered by inducing high ROS, apoptosis of the resistant population is accomplished. Subsequently, when NEIL2 is suppressed in bCSCs, chemo-sensitization of the resistant population is enabled by redox reconditioning via impaired DNA repair. This signifies a possibility of therapeutically disrupting the redox balance in bCSCs to enhance their chemo-responsiveness. Our search for an inhibitor of NEIL2 revealed that vitamin B6, i.e., pyridoxine (PN), hinders NEIL2-mediated transcription-coupled repair process by not only decreasing NEIL2 expression but also inhibiting its association with RNA Pol II, thus stimulating DNA damage and triggering ROS. As a consequence of altered redox regulation, bCSCs become susceptible towards Dox, which then induces apoptosis via caspase cascade. These findings signify that PN enhances chemo-responsiveness of bCSCs via redox reconditioning.
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Affiliation(s)
- Shruti Banerjee
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Shravanti Mukherjee
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Apoorva Bhattacharya
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Udit Basak
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Sourio Chakraborty
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Swastika Paul
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Poulami Khan
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Kuladip Jana
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India
| | - Tapas K Hazra
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX, 77555-1074, USA
| | - Tanya Das
- Division of Molecular Medicine, Bose Institute, P-1/12 CIT Scheme, VIIM, Kolkata, 700054, India.
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Purkait S, Bhattacharya A, Bag A, Chattopadhyay RR. Synergistic antibacterial, antifungal and antioxidant efficacy of cinnamon and clove essential oils in combination. Arch Microbiol 2020; 202:1439-1448. [PMID: 32185411 DOI: 10.1007/s00203-020-01858-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/25/2020] [Accepted: 03/04/2020] [Indexed: 12/01/2022]
Abstract
The present investigation aimed to evaluate antibacterial, antifungal and antioxidant efficacy of essential oils of three commonly used spices (black pepper, cinnamon and clove) in combination along with chemical characterization and toxicity evaluation. Among the possible combinations tested, cinnamon/clove oil combination showed synergistic antibacterial activity against foodborne bacteria Staphylococcus aureus, Listeria monocytogenes, Salmonella typhimurium and Pseudomonas aeruginosa and synergistic antifungal activity against Aspergillus niger as well as synergistic antioxidant potential in DPPH radical scavenging model system. GC-HRMS analysis revealed that out of thirteen identified components from clove oil, eugenol was found to be the main constituent of the oil; whereas out of twenty one identified constituents from cinnamon oil, the main component was cinnamaldehyde. Cinnamon/clove oil combination did not show any cytotoxic potential at recommended dosage level (IC50 > 2000 µg/ml). The results provide evidence that cinnamon/clove oil combination might indeed be used as a potential source of safe and effective novel natural antibacterial, antifungal and antioxidant blend in the food and pharmaceutical industries. To the best of our knowledge, this is the first time a combination of essential oils has been tested as natural preservatives to prevent both microbial proliferation and oxidative deterioration at sufficiently low concentrations.
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Affiliation(s)
- S Purkait
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, Barrackpore Trunk Road, Kolkata, 700 108, India.
| | - A Bhattacharya
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, Barrackpore Trunk Road, Kolkata, 700 108, India
| | - A Bag
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, Barrackpore Trunk Road, Kolkata, 700 108, India
| | - R R Chattopadhyay
- Agricultural and Ecological Research Unit, Indian Statistical Institute, 203, Barrackpore Trunk Road, Kolkata, 700 108, India
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Dey D, Jingar P, Agrawal S, Shrivastava V, Bhattacharya A, Manhas J, Garg B, Ansari MT, Mridha AR, Sreenivas V, Khurana A, Sen S. Symphytum officinale augments osteogenesis in human bone marrow-derived mesenchymal stem cells in vitro as they differentiate into osteoblasts. J Ethnopharmacol 2020; 248:112329. [PMID: 31672526 DOI: 10.1016/j.jep.2019.112329] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 08/05/2019] [Revised: 10/11/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Mesenchymal stem cells (MSCs) are multipotent stem cells possessing regenerative potential. Symphytum officinale (SO) is a medicinal plant and in homoeopathic literature, believed to accelerate bone healing. AIM OF THE STUDY This study aimed to determine if homoeopathic doses of SO could augment osteogenesis in MSCs as they differentiate into osteoblasts in vitro. MATERIALS AND METHODS Bone marrow samples were obtained from patients who underwent bone grafting procedures (n = 15). MSCs were isolated, expanded and characterized by flow cytometry (CD90, CD105). Cytotoxicity of SO was evaluated by MTT assay. Osteogenic differentiation was induced in MSCs with β-glycerophosphate, ascorbic acid and dexamethasone over 2 weeks. Different homoeopathic doses of SO (MT, 3C, 6C, 12C and 30C) were added to the basic differentiation medium (BDM) and efficiency of MSCs differentiating into osteoblasts were measured by evaluating expression of Osteocalcin using flow cytometry, and alkaline phosphatase activity using ELISA. Gene expression analyses for osteoblast markers (Runx-2, Osteopontin and Osteocalcin) were evaluated in differentiated osteoblasts using qPCR. RESULTS Flow cytometry (CD90, CD105) detected MSCs isolated from bone marrow (93-98%). MTT assay showed that the selected doses of SO did not induce any cytotoxicity in MSCs (24 hours). The efficiency of osteogenic differentiation (2 weeks) for different doses of Symphytum officinale was determined by flow cytometry (n = 10) for osteoblast marker, Osteocalcin, and most doses of Symphytum officinale enhanced osteogenesis. Interestingly, gene expression analysis for Runx-2 (n = 10), Osteopontin (n = 10), Osteocalcin (n = 10) and alkaline phosphatase activity (n = 8) also showed increased osteogenesis with the addition of Symphytum officinale to BDM, specially mother tincture. CONCLUSIONS Our findings suggest that homoeopathic dose (specially mother tincture) of Symphytum officinale has the potential to enhance osteogenesis.
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Affiliation(s)
- D Dey
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - P Jingar
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - S Agrawal
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - V Shrivastava
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - A Bhattacharya
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - J Manhas
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - B Garg
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India
| | - M T Ansari
- Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India
| | - A R Mridha
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, India
| | - V Sreenivas
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - A Khurana
- Central Council for Research in Homoeopathy, New Delhi, India
| | - S Sen
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
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Singh U, Mani A, James K, Rao MB, Bhattacharya A. Effects of Heat Exposure from Live-Burn Fire Training on Postural Stability of Firefighters. Ergon Int J 2019; 3. [PMID: 31815252 DOI: 10.23880/eoji-16000213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Firefighters perform physically intensive jobs in suboptimal environments, making it even more important for them to maintain good functional postural balance or stability. As part of their training, firefighters are required to perform physically demanding tasks under high stress and high heat environments. These demanding tasks lead to increased physical fatigue which can then result in poor performance and/or postural instability. The objectives of this study were to 1) investigate the effect of live-firefighting training-induced heat stress on static postural balance, and 2) investigate the association between commonly monitored physiological responses (core body temperature, heart rate, oxygen saturation and blood pressure) and measures of static postural balance. Twenty-six firefighters (mean ± SD: age 36.0 years ±5.2, weight 216 lbs. ± 34, BMI 29.7 ± 4.2) participated in live firefighting training while performing following tasks: search and rescue, hose advancement, and backup. Prior to heat exposure (PRE) and following each scenario (POST1, POST2, POST3), firefighters' postural balance was assessed with a wearable 3-D inertial sensor system quantifying time dependent changes in linear acceleration (LIN ACC) and angular velocity (AV) about three orthogonal axes [Anterior-Posterior (AP), Medial-Lateral (ML), and vertical (V)] during one foot balance tests for 30 seconds under eyes open and eyes closed conditions. The outcome variables from 3-D wearable sensors were used to create 3-D Phase-Plane based postural stability metrics. Physiological measurement of core body temperature (CBT) (measured with a radio pill) as well as perception of heat increased significantly during the live fire-training exercise. In addition, firefighters also perceived an increase in physical fatigue and respiratory distress. Angular combined stability parameters (ACSP), RMS angular velocity around ML axis were significantly correlated with CBT. In the multivariate analysis adjusted for the scenarios, height and weight of the firefighters, these measures of static postural balance were significantly associated with CBT. As per the model results, static postural balance, as indicated by ACSP, worsened with an increase in CBT. Future studies should place sensors at body extremities along with close to center of mass to capture the kinematic movements more comprehensively influencing postural balance.
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Affiliation(s)
- U Singh
- Dept of Internal Medicine, University of Cincinnati College of Medicine, USA
| | - A Mani
- Dept of Environmental Health, University of Cincinnati College of Medicine, USA
| | - K James
- Dept of Environmental Health, University of Cincinnati College of Medicine, USA
| | - M B Rao
- Dept of Environmental Health, University of Cincinnati College of Medicine, USA
| | - A Bhattacharya
- Dept of Environmental Health, University of Cincinnati College of Medicine, USA
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Kumar R, Mittal BR, Bhattacharya A, Vadi SK, Singh H, Bal A, Shukla J, Singh H, Sharma V, Sood A, Singh SK. Positron emission tomography/computed tomography guided percutaneous biopsies of Ga-68 avid lesions using an automated robotic arm. Diagn Interv Imaging 2019; 101:157-167. [PMID: 31722844 DOI: 10.1016/j.diii.2019.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/09/2019] [Accepted: 10/15/2019] [Indexed: 12/11/2022]
Abstract
PURPOSE The purpose of this prospective study was to evaluate the feasibility of positron emission tomography/computed tomography (PET/CT)-guided biopsy of Ga-68 avid lesions using an automated robotic arm and determine the diagnostic yield of this technique. MATERIAL AND METHODS Patients who underwent Ga-68 labelled tracers imaging followed by PET/CT-guided biopsies of tracer-avid lesions were prospectively included. Biopsies were performed using a dedicated automated-robotic-arm assisted PET/CT-guided biopsy device on the same-day of diagnostic PET/CT-imaging. The tissue samples were retrieved after confirming the position of needle-tip in the target lesion. Procedure-related complications and radiation exposure of the interventionist were recorded. Histopathological reports were reviewed for diagnostic yield. RESULTS A total of 25 patients (19 men, six women) with a mean age of 50.8±17.3 (SD) years (range: 17-83 years) were included. The biopsies were performed after PET/CT using Ga-68 DOTANOC (n=16) or Ga-68 PSMA (n=8) and Ga-68 chemokine-analogue (n=1). The biopsy samples were obtained from the liver (n=9), bone (n=8), lymph-nodes (n=3), lung (n=1), pancreas (n=1), anterior mediastinal lesion (n=1), peritoneal-deposit (n=1) and thigh-lesion (n=1). No immediate or delayed procedure-related complications were documented in any patient. PET/CT-guided molecular sampling was technically successful in all the patients. Histopathology revealed malignancies in all the biopsied specimens without the need for repeat sampling or further invasive-diagnostic workup, with a diagnostic yield of 100%. The estimated absorbed-radiation dose was 566.7μSv/year for the interventionist. CONCLUSION PET/CT-guided molecular biopsy using Ga-68 labelled radiotracers is feasible and can be performed safely and accurately with a high-diagnostic yield. It is helpful in accurately staging the disease when tracer-avid isolated distant lesion evident on imaging and highly practical in patients with previous inconclusive sampling.
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Affiliation(s)
- R Kumar
- Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - B R Mittal
- Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India.
| | - A Bhattacharya
- Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - S K Vadi
- Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - H Singh
- Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - A Bal
- Department of Pathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - J Shukla
- Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - H Singh
- Department of Surgery, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - V Sharma
- Department of Gastroenterology, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - A Sood
- Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
| | - S K Singh
- Department of Urology, Post Graduate Institute of Medical Education and Research, 160012 Chandigarh, India
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Mehta R, Brahmbhatt H, Bhojani G, Mukherjee M, Bhattacharya A. Poly(piperizinamide) with copper ion composite membranes: Application for mitigation of Hexaconazole from water and combat microbial contamination. J Hazard Mater 2019; 376:102-111. [PMID: 31125940 DOI: 10.1016/j.jhazmat.2019.05.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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: 03/14/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
Thin film Poly(piperazine-amide) composite membranes using sequential interfacial polymerization with tuning by Cu2+ have brought significant findings in it. The hydrophobicity is relatively enhanced for the copper containing membranes. The membrane in which copper solution is applied prior to piperizine (Memb-III) exhibits higher hydrophobicity where as membrane (Memb-II) in which copper solution is applied following piperizine, possesses higher roughness compared to other two. Filtration experiments in terms of salts, mono/disaccharides and hexaconazole indicate that modified membranes are of different behaviours according to their sequence of preparative methods. Memb-III has shown lower SO4=/Cl- selectivity compared to Memb-II (i.e. 3.92), though they are in different range. The unmodified membrane (Memb-I) exhibits SO4=/Cl- selectivity 3.23 is in the same scale of Memb-III (2.27). Memb-III exhibits higher hexaconazole separation (91.5%) compared to Memb-II (i.e. 53.9%). The flux decline follows the order: field water > tap water > deionized water. The copper incorporated membrane (Memb-II) has shown a low flux decline compared to Memb-III as well as Memb-I. The antibacterial properties towards E. Coli and Bacillus subtilis are well reflected. The copper containing membranes have promising antibacterial properties and follows the order Memb-II > Memb-III > Memb-I.
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Affiliation(s)
- Romil Mehta
- Membrane Science and Separation Technology Division, Bhavnagar, 364002 Gujarat, India
| | - H Brahmbhatt
- Analytical and Environmental Science Division and Centralized Instrument Facility, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), Bhavnagar, 364002 Gujarat, India
| | - Gopal Bhojani
- Membrane Science and Separation Technology Division, Bhavnagar, 364002 Gujarat, India
| | - M Mukherjee
- Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata, 700064, W. Bengal, India
| | - A Bhattacharya
- Membrane Science and Separation Technology Division, Bhavnagar, 364002 Gujarat, India.
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Sengupta P, Bhattacharya A, Sa G, Das T, Chatterjee S. Truncated G-Quadruplex Isomers Cross-Talk with the Transcription Factors To Maintain Homeostatic Equilibria in c-MYC Transcription. Biochemistry 2019; 58:1975-1991. [PMID: 30920805 DOI: 10.1021/acs.biochem.9b00030] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The nuclease hypersensitive element III1 (NHE III1) upstream c-MYC promoter harbors a transcription-silencing G-quadruplex (Pu27) element. Dynamic turnover of various transcription factors (TFs) across Pu27 to control c-MYC transcription homeostasis is enigmatic. Here, we reveal that native Pu27 evolves truncated G-quadruplex isomers (Pu19, Pu22, Pu24, and Pu25) in cells that are optimal intracellular targets of specific TFs in a sequence- and structure-dependent manner. Nuclear magnetic resonance and isothermal titration calorimetry envisaged that NM23-H2 (nucleoside diphosphate kinase) and nucleolin induce conformational fluctuations in Pu27 to sample specific conformationally restricted conformer(s). Structural investigations revealed that the flanking guanines at 5'-Pu27 control solvent exposure at G-quartets upon NM23-H2 and nucleolin binding driving Pu27 unfolding and folding, respectively. Transient chromatin immunoprecipitations confirmed that NM23-H2 drives the conformation switch to Pu24 that outcompetes nucleolin recruitment. Similarly, nucleolin arrests Pu27 in the Pu22 conformer minimizing NM23-H2 binding at Pu27. hnRNPK (heterogeneous nuclear ribonucleoprotein K) positively regulates NM23-H2 and nucleolin association at Pu27 despite their antagonism. On the basis of these results, we simulated the transcription kinetics in a feed-forward loop in which the transcription output responds to hnRNPK-induced early activation via NM23-H2 association, which favors Pu24 formation at NHE III1 reducing nucleolin occupancy and driving quadruplex unfolding to initiate transcription. NM23-H2 further promotes hnRNPK deposition across NHE III1 altering Pu27 plasticity that finally enriches the nucleolin abundance to drive Pu22 formation and weaken NM23-H2 binding to extinguish transcription. This mechanism involves three positive feedback loops (NM23-H2-hnRNPK, NM23-H2-CNBP, and hnRNPK-nucleolin) and one negative feedback loop (NM23-H2-nucleolin) controlling optimal turnover and residence time of TFs at Pu27 to homeostatically regulate c-MYC transcription.
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Affiliation(s)
- Pallabi Sengupta
- Department of Biophysics , Bose Institute , P 1/12, C. I. T. Road, Scheme-VIIM , Kolkata 700054 , West Bengal , India
| | - Apoorva Bhattacharya
- Division of Molecular Medicine , Bose Institute , P 1/12, C. I. T. Road, Scheme-VIIM , Kolkata 700054 , West Bengal , India
| | - Gaurisankar Sa
- Division of Molecular Medicine , Bose Institute , P 1/12, C. I. T. Road, Scheme-VIIM , Kolkata 700054 , West Bengal , India
| | - Tanya Das
- Division of Molecular Medicine , Bose Institute , P 1/12, C. I. T. Road, Scheme-VIIM , Kolkata 700054 , West Bengal , India
| | - Subhrangsu Chatterjee
- Department of Biophysics , Bose Institute , P 1/12, C. I. T. Road, Scheme-VIIM , Kolkata 700054 , West Bengal , India
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Mukhopadhyay S, Mehta R, Paidi MK, Mandal SK, Bhattacharya A. Development of Hg2+ colorimetric sensor using polymeric membrane. SEP SCI TECHNOL 2018. [DOI: 10.1080/01496395.2018.1547762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Sarbartha Mukhopadhyay
- Marine Biotechnology and Phycology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific & Industrial Research (CSIR), Bhavnagar, Gujarat, India
| | - Romil Mehta
- Membrane Science and Separation Technology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific & Industrial Research (CSIR), Bhavnagar, Gujarat, India
| | - Murali Krishna Paidi
- Marine Biotechnology and Phycology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific & Industrial Research (CSIR), Bhavnagar, Gujarat, India
| | - Subir Kumar Mandal
- Marine Biotechnology and Phycology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific & Industrial Research (CSIR), Bhavnagar, Gujarat, India
| | - A. Bhattacharya
- Membrane Science and Separation Technology Division, CSIR-Central Salt and Marine Chemicals Research Institute, Council of Scientific & Industrial Research (CSIR), Bhavnagar, Gujarat, India
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Camacho D, Lee Y, Lukens E, Bhattacharya A, Vargas L, Kimberly L. LIFE SATISFACTION AMONG MEXICAN ELDERS: FINDINGS FROM THE STUDY ON GLOBAL AGEING AND ADULT HEALTH WAVE 1. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2413] [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)
| | - Y Lee
- University of Alabama, Birmingham
| | - E Lukens
- Columbia University School of Social Work
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Camacho D, Lukens E, Lee Y, Bhattacharya A, Vargas L, Kimberly L. MEXICAN ELDERS AND SOCIAL ISOLATION: EXPLORING THE RELATIONSHIP WITH HEALTH, HEALTHCARE UTILIZATION AND VIOLENCE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2463] [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)
| | - E Lukens
- Columbia University School of Social Work
| | - Y Lee
- University of Alabama, Birmingham
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Fan B, Bhattacharya A, Bandaru PR. Enhanced voltage generation through electrolyte flow on liquid-filled surfaces. Nat Commun 2018; 9:4050. [PMID: 30283012 PMCID: PMC6170469 DOI: 10.1038/s41467-018-06297-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 08/28/2018] [Indexed: 11/10/2022] Open
Abstract
The generation of electrical voltage through the flow of an electrolyte over a charged surface may be used for energy transduction. Here, we show that enhanced electrical potential differences (i.e., streaming potential) may be obtained through the flow of salt water on liquid-filled surfaces that are infiltrated with a lower dielectric constant liquid, such as oil, to harness electrolyte slip and associated surface charge. A record-high figure of merit, in terms of the voltage generated per unit applied pressure, of 0.043 mV Pa−1 is obtained through the use of the liquid-filled surfaces. In comparison with air-filled surfaces, the figure of merit associated with the liquid-filled surface increases by a factor of 1.4. These results lay the basis for innovative surface charge engineering methodology for the study of electrokinetic phenomena at the microscale, with possible application in new electrical power sources. Superhydrophobic surfaces are expected to increase streaming potential, but are hindered by the presence of air. Here the authors enhance streaming potential by flowing high-dielectric salt water over liquid-filled surfaces infiltrated with low-dielectric liquid, harnessing electric slip and surface charge.
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Affiliation(s)
- B Fan
- Department of Mechanical Engineering, University of California, San Diego, La Jolla, 92093-0411, CA, USA
| | - A Bhattacharya
- Department of Mechanical Engineering, University of California, San Diego, La Jolla, 92093-0411, CA, USA
| | - P R Bandaru
- Department of Mechanical Engineering, University of California, San Diego, La Jolla, 92093-0411, CA, USA. .,Program in Materials Science, University of California, San Diego, La Jolla, 92093-0411, CA, USA.
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Arora R, Rahman R, Joe W, Bakhshi S, Radhakrishnan V, Mahajan A, Chinnaswamy G, Bhattacharya A, Swami A, Manglani M, Seth R, Singh A, De S, MS L, Raj R, Borker A, Martiniuk A, Tsimicalis A. Families of Children Newly Diagnosed With Cancer Incur Significant Out-of-Pocket Expenditure for Treatment: Report of a Multi-Site Prospective Longitudinal Study From India (INPOG-ACC-16-01). J Glob Oncol 2018. [DOI: 10.1200/jgo.18.42400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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] Open
Abstract
Background: Diagnosis of cancer in a child places considerable economic burden on families. The health expenditures are more catastrophic in resource limited countries like India where GDP spend on health is just over 1% and financing of treatment is usually out-of-pocket (OOP). Consequently parents may abandon their child's cancer treatment to ensure financial sustainability of the family. Research in this area is mostly from resource rich countries and OOP expenditure burden remains unknown in India. Aim: The objective of this study is to describe the OOP expenditure incurred by families of children (< 18 years age) with cancer being treated in India prior to and during cancer directed treatment. Methods: A prospective cost of illness study from a family household perspective was conducted in 14 centers (5 public, 5 private and 4 charitable trust sector) in 4 cities in India from 2016-2018. Baseline family demographic and socioeconomic data were collected followed by OOP expenditure incurred prior to start of treatment. For the duration of the child's treatment, a social worker contacted parents at regular intervals to record their expenditure on cancer directed treatment. Data collection was stopped when one of these happened - completion of treatment or death or progression/relapse or abandonment or transfer. Data were described descriptively and a univariate/multivariate analysis using logistic regression was done to detect factors associated with OOP expenditure. Results: 394 children (63% male, median age 5 years) with cancer (64% leukemia/lymphoma, 33% solid tumors, 3% CNS tumors) were enrolled from public (45%), charitable trust (28%) and private (27%) sector hospitals. They were symptomatic for a median duration of 6 weeks (range 0 to 104 weeks). 88% had no insurance and 73% were from families with monthly income of ≤ 10,000 rupees (≤ 159 US$). Mean OOP expenditure was Rs 209,500 (3325 US$) which is 195% of per capita income (1706 US$) of India. OOP expenditure from onset of symptoms to start of treatment was Rs 53,104 (843 US$) of which 77% was medical (15% laboratory tests, 11% medicines, 9% hospital bed costs) and 23% nonmedical (12% travel, 6% food, 3% lodging). OOP expenditure on cancer directed treatment was Rs 156,396 (2482 US$) of which 64% was medical (9% hospital bed costs, 9% supportive care drugs, 8% laboratory tests) and 36% nonmedical (19% food, 9% travel, 6% lodging). On univariate analysis age, gender, city, type of treatment facility, insurance, type of cancer, driving time and distance were significantly associated with OOP expenditure but only insurance and type of treatment facility were found significant on multivariate analysis. Conclusion: Families of children with cancer incur significant OOP expenditure prior to and during cancer directed treatment, which includes a significant portion on nonmedical expenses. Expenditure varied significantly by insurance and type of treatment facility.
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Affiliation(s)
- R. Arora
- Max Super Speciality Hospital, New Delhi, India
| | - R.U. Rahman
- Max Super Speciality Hospital, New Delhi, India
| | - W. Joe
- Max Super Speciality Hospital, New Delhi, India
| | - S. Bakhshi
- Max Super Speciality Hospital, New Delhi, India
| | | | - A. Mahajan
- Max Super Speciality Hospital, New Delhi, India
| | | | | | - A. Swami
- Max Super Speciality Hospital, New Delhi, India
| | - M. Manglani
- Max Super Speciality Hospital, New Delhi, India
| | - R. Seth
- Max Super Speciality Hospital, New Delhi, India
| | - A. Singh
- Max Super Speciality Hospital, New Delhi, India
| | - S. De
- Max Super Speciality Hospital, New Delhi, India
| | - L. MS
- Sri Ramachandra Medical College and Research Institute, Chennai, India
| | - R. Raj
- Apollo Speciality Cancer Hospital, Chennai, India
| | - A. Borker
- Asian Institute of Oncology, Mumbai, India
| | - A. Martiniuk
- The George Institute for Global Health, Sydney, Australia
- University of Sydney, Faculty of Medicine, Sydney, Australia
| | - A. Tsimicalis
- Ingram School of Nursing, McGill University, Montreal, Canada
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Deng A, Pattanaik S, Bhattacharya A, Yin J, Ross L, Liu C, Zhang J. Fish consumption is associated with a decreased risk of death among adults with diabetes: 18-year follow-up of a national cohort. Nutr Metab Cardiovasc Dis 2018; 28:1012-1020. [PMID: 30017435 DOI: 10.1016/j.numecd.2018.05.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 05/22/2018] [Accepted: 05/22/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND There is a paucity of studies examining the beneficial effects of fish consumption on cardiovascular diseases (CVDs) among adults with diabetes, who experience a substantially high risk of CVDs. METHODS AND RESULTS We analyzed the data of 1136 adults with diabetes mellitus aged 18 years and older who participated in the National Health and Nutrition Examination Survey, 1988-1994, and were followed up through December 31, 2010. We used Cox regression to estimate the adjusted hazard ratios (HRs) for the relative risk across the levels of fish consumption. A total of 698 deaths were recorded at the end of 11,465 person-years follow-up with a mortality rate of 60.88 per 1000 person-years. CVDs were listed as a contributing cause for 326 deaths, thus accounting for 46.4% of total deaths. Stroke-specific mortality rate among patients who ate fish less than once a week was more than twice as high as that among patients who ate fish more than twice a week, 6.23 vs. 2.36 per 1000 person-years, respectively. The corresponding CVD-specific rate was 34.38 vs. 22.99 per 1000 person-years, respectively. The adjusted HRs of death due to stroke were 1.00 (reference), 0.55 (95% confidence interval = 0.28-1.07), and 0.30 (0.11-0.80) among patients who ate fish <1, 1-2, and 2 + times a week, and the corresponding HRs of death due to CVDs were 1.00 (reference), 0.78 (0.60-1.02), and 0.69 (0.50-0.96), respectively. CONCLUSIONS A high consumption of fish was associated with a low risk of death due to CVDs, especially stroke, among adults with diabetes.
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Affiliation(s)
- A Deng
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, 30460, USA
| | - S Pattanaik
- Department of Health Education and Community Health, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, 30460, USA
| | - A Bhattacharya
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, 30460, USA
| | - J Yin
- Department of Biostatistics, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, 30460, USA
| | - L Ross
- The University of Alabama, Health Science, 461 Russell Hall, Box 870311, Tuscaloosa, AL, 35487, USA
| | - C Liu
- Department of Biostatistics, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, 30460, USA
| | - J Zhang
- Department of Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA, 30460, USA.
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Affiliation(s)
- Mayank Saxena
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, India
| | - Sanjay G. Chaudhri
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, India
| | - Arun K. Das
- Analytical and Environmental Science Division and Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, India
| | - Puyam S. Singh
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, India
| | - A. Bhattacharya
- Membrane Science & Separation Technology Division, CSIR-Central Salt & Marine Chemicals Research Institute (CSIR-CSMCRI), Council of Scientific & Industrial Research (CSIR), Bhavnagar, India
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Chaturvedi S, Bhattacharya A, Khare SK. Trends in Oil Production from Oleaginous Yeast Using Biomass: Biotechnological Potential and Constraints. APPL BIOCHEM MICRO+ 2018. [DOI: 10.1134/s000368381804004x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Purkait S, Bhattacharya A, Bag A, Chattopadhyay RR. Antibacterial and Antioxidant Potential of Essential Oils of Five Spices. J Food Qual Hazards Control 2018. [DOI: 10.29252/jfqhc.5.2.6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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Bhattacharya A, Nsonwu O, Johnson A, Hope R. Estimating the incidence and 30-day all-cause mortality rate of Escherichia coli bacteraemia in England by 2020/21. J Hosp Infect 2018; 98:228-231. [DOI: 10.1016/j.jhin.2017.09.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 09/25/2017] [Indexed: 11/26/2022]
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Chanana R, Noronha V, Joshi A, Patil V, Dhumal S, Bhattacharya A, Chandrasekharan A, Pande N, Talreja V, Turkar S, Shrirangwar S, Prabhash K. QOL analysis of a phase II randomized controlled clinical trial comparing efficacy of cabazitaxel versus docetaxel as second line or above therapy in recurrent head and neck cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx665.006] [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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Jain TK, Jois AGA, Basher RK, Dhatt SS, Bhattacharya A, Mittal BR. Isolated osteomielitis of the humerus diagnosed with 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2017; 37:123-124. [PMID: 28927703 DOI: 10.1016/j.remn.2017.02.009] [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] [Received: 12/04/2016] [Revised: 02/21/2017] [Accepted: 02/22/2017] [Indexed: 11/26/2022]
Affiliation(s)
- T K Jain
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A G A Jois
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R K Basher
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - S S Dhatt
- Department of Orthopedics, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Bhattacharya
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - B R Mittal
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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Affiliation(s)
- A. Bhattacharya
- Ryerson University, Department of Mechanical and Industrial Engineering 350 Victoria Street, Toronto, Ontario, Canada M5B 2K3
| | - S. D. Yu
- Ryerson University, Department of Mechanical and Industrial Engineering 350 Victoria Street, Toronto, Ontario, Canada M5B 2K3
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Fernandes GS, Bhattacharya A, McWilliams DF, Ingham SL, Doherty M, Zhang W. Risk prediction model for knee pain in the Nottingham community: a Bayesian modelling approach. Arthritis Res Ther 2017; 19:59. [PMID: 28320477 PMCID: PMC5359844 DOI: 10.1186/s13075-017-1272-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 08/15/2016] [Accepted: 02/27/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Twenty-five percent of the British population over the age of 50 years experiences knee pain. Knee pain can limit physical ability and cause distress and bears significant socioeconomic costs. The objectives of this study were to develop and validate the first risk prediction model for incident knee pain in the Nottingham community and validate this internally within the Nottingham cohort and externally within the Osteoarthritis Initiative (OAI) cohort. METHODS A total of 1822 participants from the Nottingham community who were at risk for knee pain were followed for 12 years. Of this cohort, two-thirds (n = 1203) were used to develop the risk prediction model, and one-third (n = 619) were used to validate the model. Incident knee pain was defined as pain on most days for at least 1 month in the past 12 months. Predictors were age, sex, body mass index, pain elsewhere, prior knee injury and knee alignment. A Bayesian logistic regression model was used to determine the probability of an OR >1. The Hosmer-Lemeshow χ2 statistic (HLS) was used for calibration, and ROC curve analysis was used for discrimination. The OAI cohort from the United States was also used to examine the performance of the model. RESULTS A risk prediction model for knee pain incidence was developed using a Bayesian approach. The model had good calibration, with an HLS of 7.17 (p = 0.52) and moderate discriminative ability (ROC 0.70) in the community. Individual scenarios are given using the model. However, the model had poor calibration (HLS 5866.28, p < 0.01) and poor discriminative ability (ROC 0.54) in the OAI cohort. CONCLUSIONS To our knowledge, this is the first risk prediction model for knee pain, regardless of underlying structural changes of knee osteoarthritis, in the community using a Bayesian modelling approach. The model appears to work well in a community-based population but not in individuals with a higher risk for knee osteoarthritis, and it may provide a convenient tool for use in primary care to predict the risk of knee pain in the general population.
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Affiliation(s)
- G. S. Fernandes
- Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine, University of Nottingham, Nottingham, UK
- Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Nottingham, UK
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
- Academic Rheumatology, School of Medicine, Nottingham University, Nottingham City Hospital, Nottingham, NG5 1PB UK
| | - A. Bhattacharya
- Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine, University of Nottingham, Nottingham, UK
- Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Nottingham, UK
- Academic Rheumatology, School of Medicine, Nottingham University, Nottingham City Hospital, Nottingham, NG5 1PB UK
| | - D. F. McWilliams
- Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine, University of Nottingham, Nottingham, UK
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
- Academic Rheumatology, School of Medicine, Nottingham University, Nottingham City Hospital, Nottingham, NG5 1PB UK
| | - S. L. Ingham
- Faculty of Life Sciences, University of Manchester, Carys Bannister Building, Dover Street, Manchester, M13 9PL UK
| | - M. Doherty
- Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine, University of Nottingham, Nottingham, UK
- Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Nottingham, UK
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
- Academic Rheumatology, School of Medicine, Nottingham University, Nottingham City Hospital, Nottingham, NG5 1PB UK
| | - W. Zhang
- Division of Rheumatology, Orthopaedics and Dermatology, School of Medicine, University of Nottingham, Nottingham, UK
- Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Nottingham, UK
- Arthritis Research UK Pain Centre, University of Nottingham, Nottingham, UK
- Academic Rheumatology, School of Medicine, Nottingham University, Nottingham City Hospital, Nottingham, NG5 1PB UK
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Kumar Jain T, Sood A, Kumar Basher R, Bhattacharya A, Rai Mittal B, Aggarwal A. “Pine tree” appearance on 18 F-FDG PET/CT MIP image in spinal tuberculosis. Rev Esp Med Nucl Imagen Mol 2017. [DOI: 10.1016/j.remnie.2016.07.012] [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: 11/27/2022]
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Karam E, Shivji FS, Bhattacharya A, Bryson DJ, Forward DP, Scammell BE, Ollivere BJ. A cross-sectional study of the impact of physiotherapy and self directed exercise on the functional outcome of internally fixed isolated unimalleolar Weber B ankle fractures. Injury 2017; 48:531-535. [PMID: 27889109 DOI: 10.1016/j.injury.2016.11.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2016] [Revised: 10/29/2016] [Accepted: 11/16/2016] [Indexed: 02/02/2023]
Abstract
This study aimed to measure the functional outcome and quality of life in a group of patients with the same fracture type (unimalleolar Weber B ankle fractures) treated operatively at various time points and to explore the determinants of such outcomes. A cross-sectional retrospective population study was conducted. Validated Patient Related Outcome Measures (PROMs) and patient interviews were used. Fifty-one patients were included with a mean age of 54.9 years. Mean follow-up was 25 months (range 4-46 months). Mean functional scores were high (mean AOFAS 79.2, O&M 75.7, VAS-FA 80.5). However, 32% of patients did not classify themselves as fully recovered during interviews. Patient reported self-directed exercise had a statistically significant positive effect on self-reported patient perceptions of outcome (p=0.022) and PROMs (AOFAS p=0.01, O&M p=0.016, VAS-FA p=0.011). Formal physiotherapy rehabilitation was found to have no effect on self-reported patient perceptions (p=0.242) or PROMs (AOFAS p=0.8, O&M p=0.73, VAS-FA p=0.46). Our finding that physical activity is associated with improved outcome would suggest structured exercise programmes should be considered in place of physiotherapy to optimise patient outcomes.
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Affiliation(s)
- E Karam
- University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - F S Shivji
- University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - A Bhattacharya
- University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - D J Bryson
- University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - D P Forward
- University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - B E Scammell
- University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, UK.
| | - B J Ollivere
- University of Nottingham and Nottingham University Hospitals NHS Trust, Nottingham, UK
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Manhas J, Bhattacharya A, Bhat M, Agrawal S, Deo S, Ghosh D, Sen S. Unique gene expression signature of cancer initiating cells in colorectal cancer. Eur J Cancer 2017. [DOI: 10.1016/s0959-8049(17)30266-6] [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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Jain TK, Sood A, Sharma A, Basher RK, Bhattacharya A, Mittal BR. Response assessment in relapsing polychondritis with 18F-FDG PET/CT. Rev Esp Med Nucl Imagen Mol 2017; 36:124-125. [PMID: 28131697 DOI: 10.1016/j.remn.2016.10.004] [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] [Received: 07/28/2016] [Accepted: 10/20/2016] [Indexed: 11/26/2022]
Affiliation(s)
- T K Jain
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Sood
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Sharma
- Department of Medicine, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R K Basher
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Bhattacharya
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - B R Mittal
- Department of Nuclear Medicine and PET, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
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Manna A, Banerjee S, Khan P, Bhattacharya A, Das T. Contribution of nuclear events in generation and maintenance of cancer stem cells: revisiting chemo-resistance. Nucleus 2017. [DOI: 10.1007/s13237-017-0193-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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