1
|
Bhattacharyya P, Chen W, Huang X, Chatterjee S, Huang B, Kobrin B, Lyu Y, Smart TJ, Block M, Wang E, Wang Z, Wu W, Hsieh S, Ma H, Mandyam S, Chen B, Davis E, Geballe ZM, Zu C, Struzhkin V, Jeanloz R, Moore JE, Cui T, Galli G, Halperin BI, Laumann CR, Yao NY. Imaging the Meissner effect in hydride superconductors using quantum sensors. Nature 2024; 627:73-79. [PMID: 38418887 DOI: 10.1038/s41586-024-07026-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 01/03/2024] [Indexed: 03/02/2024]
Abstract
By directly altering microscopic interactions, pressure provides a powerful tuning knob for the exploration of condensed phases and geophysical phenomena1. The megabar regime represents an interesting frontier, in which recent discoveries include high-temperature superconductors, as well as structural and valence phase transitions2-6. However, at such high pressures, many conventional measurement techniques fail. Here we demonstrate the ability to perform local magnetometry inside a diamond anvil cell with sub-micron spatial resolution at megabar pressures. Our approach uses a shallow layer of nitrogen-vacancy colour centres implanted directly within the anvil7-9; crucially, we choose a crystal cut compatible with the intrinsic symmetries of the nitrogen-vacancy centre to enable functionality at megabar pressures. We apply our technique to characterize a recently discovered hydride superconductor, CeH9 (ref. 10). By performing simultaneous magnetometry and electrical transport measurements, we observe the dual signatures of superconductivity: diamagnetism characteristic of the Meissner effect and a sharp drop of the resistance to near zero. By locally mapping both the diamagnetic response and flux trapping, we directly image the geometry of superconducting regions, showing marked inhomogeneities at the micron scale. Our work brings quantum sensing to the megabar frontier and enables the closed-loop optimization of superhydride materials synthesis.
Collapse
Affiliation(s)
- P Bhattacharyya
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - W Chen
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
| | - X Huang
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
| | - S Chatterjee
- Department of Physics, University of California, Berkeley, CA, USA
- Department of Physics, Carnegie Mellon University, Pittsburgh, PA, USA
| | - B Huang
- Department of Chemistry, University of Chicago, Chicago, IL, USA
| | - B Kobrin
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Y Lyu
- Department of Physics, University of California, Berkeley, CA, USA
| | - T J Smart
- Department of Physics, University of California, Berkeley, CA, USA
- Department of Earth and Planetary Science, University of California, Berkeley, CA, USA
| | - M Block
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - E Wang
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA
| | - Z Wang
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - W Wu
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - S Hsieh
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - H Ma
- Department of Chemistry, University of Chicago, Chicago, IL, USA
| | - S Mandyam
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - B Chen
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - E Davis
- Department of Physics, University of California, Berkeley, CA, USA
| | - Z M Geballe
- Earth and Planets Laboratory, Carnegie Institution of Washington, Washington, DC, USA
| | - C Zu
- Department of Physics, Washington University in St. Louis, St. Louis, MO, USA
| | - V Struzhkin
- Center for High Pressure Science and Technology Advanced Research, Shanghai, China
| | - R Jeanloz
- Department of Earth and Planetary Science, University of California, Berkeley, CA, USA
| | - J E Moore
- Department of Physics, University of California, Berkeley, CA, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - T Cui
- State Key Laboratory of Superhard Materials, College of Physics, Jilin University, Changchun, China
- School of Physical Science and Technology, Ningbo University, Ningbo, China
| | - G Galli
- Department of Chemistry, University of Chicago, Chicago, IL, USA
- Materials Science Division and Center for Molecular Engineering, Argonne National Laboratory, Lemont, IL, USA
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, IL, USA
| | - B I Halperin
- Department of Physics, Harvard University, Cambridge, MA, USA
| | - C R Laumann
- Department of Physics, Boston University, Boston, MA, USA
| | - N Y Yao
- Department of Physics, University of California, Berkeley, CA, USA.
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
- Department of Physics, Harvard University, Cambridge, MA, USA.
| |
Collapse
|
2
|
Bhattacharyya P. Obstructive airway disease: Pragmatism in diagnoses in real world. Lung India 2024; 41:1-2. [PMID: 38160451 PMCID: PMC10883447 DOI: 10.4103/lungindia.lungindia_367_23] [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: 07/19/2023] [Accepted: 09/16/2023] [Indexed: 01/03/2024] Open
|
3
|
Dash PK, Bhattacharyya P, Shahid M, Kumar U, Padhy SR, Swain CK, Senapati A, Bihari P, Nayak AK. Impact of long-term resource conservation techniques on biogeochemical characteristics and biological soil quality indicators in a rice green-gram farming system. Environ Geochem Health 2023; 45:7979-7997. [PMID: 37515727 DOI: 10.1007/s10653-023-01713-6] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
Nutrient management in resource conservation practices influence the structural and functional microbial diversities and thereby affect biological processes and biochemical properties in soil. We studied the long-term effects of resource conservation technologies on functional microbial diversity and their interactions with soil biochemical properties and enzymatic activities in tropical rice-green gram cropping system. The experiment includes seven treatments viz., conventional practice (CC), brown manuring (BM), green manuring (GM), wet direct drum sowing, zero tillage, green manuring-customized leaf colour chart based-N application (GM-CLCC-N) and biochar (BC) application. The result of the present study revealed that microbial biomass nitrogen (N), carbon (C) and phosphorus (P) in GM practice were increased by 23.3, 37.7 and 35.1%, respectively than CC. GM, BM and GM-CLCC-N treatments provide higher yields than conventional practice. The average well color development value, Shannon index and McIntosh index were significantly higher by 26.6%, 86.9% and 29.2% in GM as compared to control treatment. So, from this study we can conclude that resource conservation practices like GM, GM-CLCC N and BM in combination with chemical fertilizers provide easily decomposable carbon source to support the microbial growth. Moreover, dominance of microbial activity in biomass amended treatments (GM, GM-CLCC N and BM) indicated that these treatments could supply good amount of labile C sources on real time basis for microbial growth that may protect the stable C fraction in soil, hence could support higher yield and soil organic carbon build-up in long run under rice-green gram soil.
Collapse
Affiliation(s)
- P K Dash
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India.
| | - P Bhattacharyya
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India
| | - Mohammad Shahid
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India
| | - U Kumar
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India
| | - S R Padhy
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India
| | - C K Swain
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India
| | - A Senapati
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India
| | - P Bihari
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India
| | - A K Nayak
- Crop Production Division, ICAR-National Rice Research Institute, Cuttack, 753006, India.
| |
Collapse
|
4
|
Bhattacharyya P. Precision therapy for obstructive airway diseases: A novel concept. Lung India 2023; 40:490-491. [PMID: 37961954 PMCID: PMC10723207 DOI: 10.4103/lungindia.lungindia_320_23] [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: 06/21/2023] [Revised: 08/22/2023] [Accepted: 09/16/2023] [Indexed: 11/15/2023] Open
Affiliation(s)
- Parthasarathi Bhattacharyya
- Department of Airway Diseases, Consultant, Institute of Pulmocare and Research, Kolkata, West Bengal, India E-mail:
| |
Collapse
|
5
|
Rivera J, Malone S, Puerto-Torres M, Prewitt K, Counts L, Wiphatphumiprates P, Sakaan F, Al Zebin Z, Arias AV, Bhattacharyya P, Gunasekera S, Johnson S, Kambugu J, Kaye EC, Mandrell B, Mack J, McArthur J, Mendez A, Morrissey L, Sharara-Chami R, Snaman J, Sniderman E, Luke DA, Graetz DE, Agulnik A. CritCom: assessment of quality of interdisciplinary communication around deterioration in pediatric oncologic patients. Front Oncol 2023; 13:1207578. [PMID: 37886167 PMCID: PMC10598383 DOI: 10.3389/fonc.2023.1207578] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/22/2023] [Indexed: 10/28/2023] Open
Abstract
Background High-quality clinical care requires excellent interdisciplinary communication, especially during emergencies, and no tools exist to evaluate communication in critical care. We describe the development of a pragmatic tool focusing on interdisciplinary communication during patient deterioration (CritCom). Methods The preliminary CritCom tool was developed after a literature review and consultation with a multidisciplinary panel of global experts in communication, pediatric oncology, and critical care to review the domains and establish content validity iteratively. Face and linguistic validity were established through cognitive interviews, translation, and linguistic synthesis. We conducted a pilot study among an international group of clinicians to establish reliability and usability. Results After reviewing 105 potential survey items, we identified 52 items across seven domains. These were refined through cognitive interviews with 36 clinicians from 15 countries. CritCom was piloted with 433 clinicians (58% nurses, 36% physicians, and 6% other) from 42 hospitals in 22 countries. Psychometric testing guided the refinement of the items for the final tool. CritCom comprised six domains with five items each (30 total). The final tool has excellent reliability (Cronbach's alpha 0.81-0.86), usability (93% agree or strongly agree that the tool is easy to use), and similar performance between English and Spanish tools. Confirmatory factor analysis was used to establish the final 6-domain structure. Conclusions CritCom is a reliable and pragmatic bilingual tool to assess the quality of interdisciplinary communication around patient deterioration for children in diverse resource levels globally. Critcom results can be used to design and evaluate interventions to improve team communication.
Collapse
Affiliation(s)
- Jocelyn Rivera
- Pediatric Emergency Department, Hospital Infantil Teletón de Oncología (HITO), Querétaro, Mexico
| | - Sara Malone
- Washington University in St. Louis, Brown School, St. Louis, MO, United States
| | - Maria Puerto-Torres
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Kim Prewitt
- Washington University in St. Louis, Brown School, St. Louis, MO, United States
| | - Lara Counts
- Washington University in St. Louis, Brown School, St. Louis, MO, United States
| | - Parima Wiphatphumiprates
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Firas Sakaan
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Zebin Al Zebin
- Pediatric Hematology and Oncology, King Hussein Cancer Center, Amman, Jordan
| | - Anita V. Arias
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | | | - Sanjeeva Gunasekera
- Department of Pediatric Oncology National Cancer Institute, Maharagama, Sri Lanka
| | - Sherry Johnson
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Joyce Kambugu
- Pediatric Oncology, Uganda Cancer Institute, Kampala, Uganda
| | - Erica C. Kaye
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Belinda Mandrell
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Jennifer Mack
- Department of Hematology and Oncology, Dana-Farber Cancer Institute and Boston Children’s Hospital, Boston, MA, United States
| | - Jennifer McArthur
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Alejandra Mendez
- Pediatric Intensive Care Unit, Unidad Nacional de Oncología pediátrica (UNOP), Guatemala City, Guatemala
| | - Lisa Morrissey
- Department of Hematology and Oncology, Dana-Farber Cancer Institute and Boston Children’s Hospital, Boston, MA, United States
| | - Rana Sharara-Chami
- Pediatric Critical Care Medicine, American University of Beirut, Beirut, Lebanon
| | - Jennifer Snaman
- Department of Hematology and Oncology, Dana-Farber Cancer Institute and Boston Children’s Hospital, Boston, MA, United States
| | - Elizabeth Sniderman
- Northern Alberta Children’s Cancer Program, Stollery Children’s Hospital, Edmonton, AB, Canada
| | - Douglas A. Luke
- Washington University in St. Louis, Brown School, St. Louis, MO, United States
| | - Dylan E. Graetz
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Asya Agulnik
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children’s Research Hospital, Memphis, TN, United States
| |
Collapse
|
6
|
Debnath U, Mitra A, Dewaker V, Prabhakar YS, Tadala R, Krishnan K, Wagh P, Velusamy U, Baliyan A, Kurpad AV, Bhattacharyya P, Mandal AK. Conformational perturbation of SARS-CoV-2 spike protein using N-acetyl cysteine: an exploration of probable mechanism of action to combat COVID-19. J Biomol Struct Dyn 2023:1-11. [PMID: 37477247 DOI: 10.1080/07391102.2023.2234031] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
The infection caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) resulted in a pandemic with huge death toll and economic consequences. The virus attaches itself to the human epithelial cells through noncovalent bonding of its spike protein with the angiotensin-converting enzyme-2 (ACE2) receptor on the host cell. Based on in silico studies we hypothesized that perturbing the functionally active conformation of spike protein through the reduction of its solvent accessible disulfide bonds, thereby disintegrating its structural architecture, may be a feasible strategy to prevent infection by reducing the binding affinity towards ACE2 enzyme. Proteomics data showed that N-acetyl cysteine (NAC), an antioxidant and mucolytic agent been widely in use in clinical medicine, forms covalent conjugates with solvent accessible cysteine residues of spike protein that were disulfide bonded in the native state. Further, in silico analysis indicated that the presence of the selective covalent conjugation of NAC with Cys525 perturbed the stereo specific orientations of the interacting key residues of spike protein that resulted in threefold weakening in the binding affinity of spike protein with ACE2 receptor. Interestingly, almost all SARS-CoV-2 variants conserved cystine residues in the spike protein. Our finding results possibly provides a molecular basis for identifying NAC and/or its analogues for targeting Cys-525 of the viral spike protein as fusion inhibitor and exploring in vivo pharmaco-preventive and its therapeutic potential activity for COVID-19 disease. However, in-vitro assay and animal model-based experiment are required to validate the probable mechanism of action.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Utsab Debnath
- School of Health Science and Technology, University of Petroleum and Energy Studies, Dehradun, India
| | - Amrita Mitra
- Clinical Proteomics Unit, Division of Molecular Medicine, St. John's Research Institute, Bangalore, India
| | - Varun Dewaker
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Yenamandra S Prabhakar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, India
| | - Raghu Tadala
- Waters India Private Limited No. 36A, Bengaluru, India
| | | | - Padmakar Wagh
- Waters India Private Limited No. 36A, Bengaluru, India
| | | | - Aastha Baliyan
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Nadia, India
| | - Anura V Kurpad
- Department of Physiology, St. John's Medical College, Bangalore, India
| | | | - Amit Kumar Mandal
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Nadia, India
| |
Collapse
|
7
|
Bhattacharyya P. Moving from PF-ILD to PPF. Lung India 2023; 40:301-302. [PMID: 37417080 PMCID: PMC10401986 DOI: 10.4103/lungindia.lungindia_378_22] [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: 07/28/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 07/08/2023] Open
|
8
|
Malone S, Rivera J, Puerto-Torres M, Prewitt K, Sakaan F, Counts L, Al Zebin Z, Arias AV, Bhattacharyya P, Gunasekera S, Johnson S, Kambugu J, Kaye EC, Mandrell B, Mack JW, McArthur J, Mendez A, Morrissey L, Sharara-Chami R, Snaman J, Sniderman E, Luke DA, Graetz DE, Agulnik A. A new measure for multi-professional medical team communication: design and methodology for multilingual measurement development. Front Pediatr 2023; 11:1127633. [PMID: 37334217 PMCID: PMC10272604 DOI: 10.3389/fped.2023.1127633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 05/09/2023] [Indexed: 06/20/2023] Open
Abstract
Background As implementation science in global health continues to evolve, there is a need for valid and reliable measures that consider diverse linguistic and cultural contexts. A standardized, reproducible process for multilingual measure development may improve accessibility and validity by participants in global health settings. To address this need, we propose a rigorous methodology for multilingual measurement development. We use the example of a novel measure of multi-professional team communication quality, a determinant of implementation efforts. Methods The development and translation of this novel bilingual measure is comprised of seven steps. In this paper, we describe a measure developed in English and Spanish, however, this approach is not language specific. Participants are engaged throughout the process: first, an interprofessional panel of experts and second, through cognitive interviewing for measure refinement. The steps of measure development included: (1) literature review to identify previous measures of team communication; (2) development of an initial measure by the expert panel; (3) cognitive interviewing in a phased approach with the first language (English); (4): formal, forward-backward translation process with attention to colloquialisms and regional differences in languages; (5) cognitive interviewing repeated in the second language (Spanish); (6) language synthesis to refine both instruments and unify feedback; and (7) final review of the refined measure by the expert panel. Results A draft measure to assess quality of multi-professional team communication was developed in Spanish and English, consisting of 52 questions in 7 domains. This measure is now ready for psychometric testing. Conclusions This seven-step, rigorous process of multilingual measure development can be used in a variety of linguistic and resource settings. This method ensures development of valid and reliable tools to collect data from a wide range of participants, including those who have historically been excluded due to language barriers. Use of this method will increase both rigor and accessibility of measurement in implementation science and advance equity in research and practice.
Collapse
Affiliation(s)
- Sara Malone
- Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, MO, United States
| | - Jocelyn Rivera
- Department of Pediatrics, Hospital Infantil Teletón de Oncologia (HITO), Querétaro, Mexico
| | - Maria Puerto-Torres
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Kim Prewitt
- Center for Public Health Systems Science, Washington University, St. Louis, MO, USA
| | - Firas Sakaan
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Lara Counts
- Department of Surgery, Washington University in St. Louis School of Medicine, St. Louis, MO, United States
| | - Zebin Al Zebin
- Pediatric Hematology and Oncology, King Hussein Cancer Center, Amman, Jordan
| | - Anita V Arias
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | | | | | - Sherry Johnson
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Joyce Kambugu
- Pediatric Oncology, Uganda Cancer Institute, Kampala, Uganda
| | - Erica C Kaye
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Belinda Mandrell
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Jennifer W Mack
- Department of Hematology and Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, United States
| | - Jennifer McArthur
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Alejandra Mendez
- Pediatric Intensive Care Unit, Unidad Nacional de Oncologia Pediatrica (UNOP), Guatemala City, Guatemala
| | - Lisa Morrissey
- Department of Hematology and Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, United States
| | - Rana Sharara-Chami
- Pediatric Critical Care Medicine, American University of Beirut, Beirut, Lebanon
- Pediatric Intensive Care Unit, LJ Murphy Inova Children's Hospital, Fairfax, VA, United States
| | - Jennifer Snaman
- Department of Hematology and Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA, United States
| | - Elizabeth Sniderman
- Northern Alberta Children's Cancer Program, Stollery Children's Hospital, Edmonton, AB, Canada
| | - Douglas A Luke
- Center for Public Health Systems Science, Washington University, St. Louis, MO, USA
| | - Dylan E Graetz
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| | - Asya Agulnik
- Division of Critical Care Medicine, Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, United States
| |
Collapse
|
9
|
Bhattacharyya P, Saha D, Chatterjee M, Sengupta S, Dey D, Banerjee R. COPD and glycopyrronium responsiveness assessment: An appraisal. Lung India 2023; 40:227-234. [PMID: 37148020 PMCID: PMC10298818 DOI: 10.4103/lungindia.lungindia_376_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/01/2022] [Accepted: 12/07/2022] [Indexed: 05/07/2023] Open
Abstract
Clinical Trial Registration ECR/159/Inst/WB/2013/RR-20. Background Glycopyrronium bromide (a long-acting antimuscarinic agent: LAMA) appears pharmacokinetically suitable for testing bronchodilator responsiveness as salbutamol (short-acting β2-agonist: SABA). Exploring the feasibility, acceptability, degree of reversibility with glycopyrronium, and its comparison with that of salbutamol may be intriguing. Methods New, consecutive, and willing outpatient attendees in the same season of the two consecutive years with chronic obstructive pulmonary disease (FEV1/FVC <0.07; FEV1 <80% of predicted) were subjected to serial responsiveness with inhalation of salbutamol first followed by 50 μg dry powder glycopyrronium [Salbutamol- Glycopyrronium] (phase-1) in the first year and glycopyrronium followed by salbutamol [Glycopyrronium- Salbutamol] (phase-2) in the following year. We looked for the acceptability, adverse reactions, and degree of changes in FEV1, FVC, FEV1/FVC, and FEF25-75 with comparison between the two groups. Results The [Salbutamol- Glycopyrronium] group (n = 86) were similar in age, body mass index, and FEV1 to the [Glycopyrronium- Salbutamol] group (n = 88). Both the agents could make a significant (P <.0001) improvement in the parameters independently or as add-on when used serially in alternate orders. The intergroup difference at no stage was significant. The sensitive patients to salbutamol (n = 48), glycopyrronium (n = 44), and both (n = 12) have improvement of 165, 189, and 297 mL while a both-insensitive group (n = 70) had barely 44 mL of improvement. The protocol was universally accepted without any adverse events. Conclusion Serial testing of salbutamol and glycopyrronium responsiveness in alternate orders provides an insight regarding the independent and the add-on effects of these two agents. About 40% of our chronic obstructive pulmonary disease patients had no clinically appreciable difference in FEV1 with the salbutamol + glycopyrronium combination inhalation.
Collapse
Affiliation(s)
| | - Dipanjan Saha
- Research Fellow, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Moumita Chatterjee
- Assistant Professor, Statistics, Alia University, Kolkata, West Bengal, India
| | - Sayoni Sengupta
- Research Fellow, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Debkanya Dey
- Research Fellow, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Rajat Banerjee
- Department of Biotechnology and Dr. B. C. Guha Centre for Genetic Engineering and Biotechnology, University of Calcutta, Kolkata, West Bengal, India
| |
Collapse
|
10
|
Karmakar S, Paul M, De A, Chakraborty A, Bhattacharyya P. Does avian antigen-induced chronic hypersensitivity pneumonitis lead to more severe PH than other causes of the same? Lung India 2023; 40:183-185. [PMID: 37006108 PMCID: PMC10174666 DOI: 10.4103/lungindia.lungindia_323_22] [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: 06/21/2022] [Revised: 12/02/2022] [Accepted: 12/18/2022] [Indexed: 03/05/2023] Open
Affiliation(s)
- Sayanti Karmakar
- Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Mintu Paul
- Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Aniruddha De
- Department of Non-Invasive Cardiology, Suraksha Diagnostics, Kolkata, West Bengal, India
| | - Amrita Chakraborty
- Department of Radiology, HCG-EKO Cancer Centre, Kolkata, West Bengal, India E-mail:
| | | |
Collapse
|
11
|
Arias AV, Sakaan FM, Puerto-Torres M, Al Zebin Z, Bhattacharyya P, Cardenas A, Gunasekera S, Kambugu J, Kirgizov K, Libes J, Martinez A, Matinyan NV, Mendez A, Middlekauff J, Nielsen KR, Pappas A, Ren H, Sharara-Chami R, Torres SF, McArthur J, Agulnik A. Development and pilot testing of PROACTIVE: A pediatric onco-critical care capacity and quality assessment tool for resource-limited settings. Cancer Med 2023; 12:6270-6282. [PMID: 36324249 PMCID: PMC10028058 DOI: 10.1002/cam4.5395] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 10/12/2022] [Accepted: 10/21/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Nearly 90% children with cancer reside in low- and middle-income countries, which face multiple challenges delivering high-quality pediatric onco-critical care (POCC). We recently identified POCC quality and capacity indicators for PROACTIVE (PediatRic Oncology cApaCity assessment Tool for IntensiVe carE), a tool that evaluates strengths and limitations in POCC services. This study describes pilot testing of PROACTIVE, development of center-specific reports, and identification of common POCC challenges. METHODS The original 119 consensus-derived PROACTIVE indicators were converted into 182 questions divided between 2 electronic surveys for intensivists and oncologists managing critically ill pediatric cancer patients. Alpha-testing was conducted to confirm face-validity with four pediatric intensivists. Eleven centers representing diverse geographic regions, income levels, and POCC services conducted beta-testing to evaluate usability, feasibility, and applicability of PROACTIVE. Centers' responses were scored and indicators with mean scores ≤75% in availability/performance were classified as common POCC challenges. RESULTS Alpha-testing ensured face-validity and beta-testing demonstrated feasibility and usability of PROACTIVE (October 2020-June 2021). Twenty-two surveys (response rate 99.4%) were used to develop center-specific reports. Adjustments to PROACTIVE were made based on focus group feedback and surveys, resulting in 200 questions. Aggregated data across centers identified common POCC challenges: (1) lack of pediatric intensivists, (2) absence of abstinence and withdrawal symptoms monitoring, (3) shortage of supportive care resources, and (4) limited POCC training for physicians and nurses. CONCLUSIONS PROACTIVE is a feasible and contextually appropriate tool to help clinicians and organizations identify challenges in POCC services across a wide range of resource-levels. Widespread use of PROACTIVE can help prioritize and develop tailored interventions to strengthen POCC services and outcomes globally.
Collapse
Affiliation(s)
- Anita V Arias
- Division of Critical Care, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Firas M Sakaan
- Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Maria Puerto-Torres
- Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Zebin Al Zebin
- Pediatric Hematology and Oncology, King Hussein Cancer Center, Amman, Jordan
| | | | - Adolfo Cardenas
- Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Sanjeeva Gunasekera
- Department of Pediatric Oncology, National Cancer Institute Sri Lanka, Maharagama, Sri Lanka
| | - Joyce Kambugu
- Department of Pediatric Oncology, Uganda Cancer Institute, Kampala, Uganda
| | | | - Jaime Libes
- Department of Pediatric Hematology and Oncology, University of Illinois College of Medicine, Peoria, Illinois, USA
| | - Angelica Martinez
- Pediatric Hemato-Oncology Unit, Hospital General de Tijuana, Tijuana, Baja California, Mexico
| | | | - Alejandra Mendez
- Pediatric Critical Care, Unidad Nacional de Oncología Pediátrica (UNOP), Guatemala City, Guatemala
| | - Janet Middlekauff
- Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Katie R Nielsen
- Division of Pediatric Critical Care, University of Washington, Seattle, Washington, USA
- Department of Global Health, University of Washington, Seattle, Washington, USA
| | - Andrew Pappas
- Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Hong Ren
- Department of Pediatric Intensive Care Unit, Shanghai Children's Medical Center, Shanghai, China
| | - Rana Sharara-Chami
- Department of Pediatric and Adolescent Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Silvio F Torres
- Pediatric Intensive Care Unit, Hospital Universitario Austral, Buenos Aires, Argentina
| | - Jennifer McArthur
- Division of Critical Care, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Asya Agulnik
- Division of Critical Care, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
- Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| |
Collapse
|
12
|
Bhattacharyya P, Mukherjee S, Chatterjee M, Saha D, Sengupta S, Dey D. The impact of lockdown on symptoms and health status of patients with chronic airway diseases: An appraisal of patient perceived impressions. Lung India 2023; 40:128-133. [PMID: 37006096 PMCID: PMC10174645 DOI: 10.4103/lungindia.lungindia_278_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 11/02/2022] [Accepted: 12/18/2022] [Indexed: 03/05/2023] Open
Abstract
Background The pandemic-specific lockdown may influence the health status of patients with chronic airflow obstruction (CAO) as COPD, COPD-PH, and chronic asthma. Objectives To find the impact of the lockdown on symptoms, and the degree of perceived change in physical activity and emotional health with possible reasons including the indicators of ambient air pollution. Methods A cohort of CAO patients was telephonically enquired regarding their perceived well-being in symptom status, physical activity, and emotional health with the perceived contribution from plausible reasons (regular medication, simple food, no pollution, and family attention) for the change; all being expressed in percentages. The change in symptom scores as 0-39, 40-79, and 80-100 were regarded as 'low', 'medium', and 'high' respectively. The impact of the individual contributing factor was calculated statistically. The assessment of the CAT (COPD assessment test) score and the ambient air pollution (PM2.5 and PM10) was also done for their association with well-being. Results There was a universal improvement (p < 0.5) in COPD (n = 113), COPD-PH, (n = 40), and chronic asthma, (n = 19) as regards symptoms, physical activity, and emotional health that tallies to overall and individual change in CAT score. There were concomitant reductions in PM10 and PM2.5 levels during the lockdown compared to the same period of the previous year. All the four listed factors contributed with the 'no/low pollution' and 'simple food being the most important; on acting together, they reduced the moderate and severe symptoms impressively. Conclusion Reduced air pollution and simple food appear most important for the improvement of CAO patients during the lockdown period.
Collapse
Affiliation(s)
| | - Sikta Mukherjee
- Department of Airway Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Moumita Chatterjee
- Department of Mathematics and Statistics, Aliah University, Kolkata, West Bengal, India
| | - Dipanjan Saha
- Department of Airway Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Sayoni Sengupta
- Department of Airway Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Debkanya Dey
- Department of Airway Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| |
Collapse
|
13
|
Abstract
The two common progressive lung diseases, asthma and chronic obstructive pulmonary disease (COPD), are the leading causes of morbidity and mortality worldwide. Asthma-COPD overlap, referred to as ACO, is another complex pulmonary disease that manifests itself with features of both asthma and COPD. The disease has no clear diagnostic or therapeutic guidelines, thereby making both diagnosis and treatment challenging. Though a number of studies on ACO have been documented, gaps in knowledge regarding the pathophysiologic mechanism of this disorder exist. Addressing this issue is an urgent need for improved diagnostic and therapeutic management of the disease. Metabolomics, an increasingly popular technique, reveals the pathogenesis of complex diseases and holds promise in biomarker discovery. This comprehensive narrative review, comprising 99 original research articles in the last five years (2017-2022), summarizes the scientific advances in terms of metabolic alterations in patients with asthma, COPD, and ACO. The analytical tools, nuclear magnetic resonance (NMR), gas chromatography-mass spectrometry (GC-MS), and liquid chromatography-mass spectrometry (LC-MS), commonly used to study the expression of the metabolome, are discussed. Challenges frequently encountered during metabolite identification and quality assessment are highlighted. Bridging the gap between phenotype and metabotype is envisioned in the future.
Collapse
Affiliation(s)
- Sanjukta Dasgupta
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Nilanjana Ghosh
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | | | | | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, India
| |
Collapse
|
14
|
Bhattacharyya P. Unsuspected Subclinical Left Ventricular Dysfunction in Post-COVID Patients: A Real-world Observation. JAPI 2022. [DOI: 10.5005/japi-11001-0147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
15
|
Sarkar S, Bhattacherjee S, Bhattacharyya P, Mitra M, Pal S. Automatic identification of asthma from ECG derived respiration using complete ensemble empirical mode decomposition with adaptive noise and principal component analysis. Biomed Signal Process Control 2022. [DOI: 10.1016/j.bspc.2022.103716] [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: 11/02/2022]
|
16
|
Ghosh RK, Saha D, Sarma M, Bhattacharyya P, Majumdar S, Chowdhury A, Bhattacharyya P. Prevalence and health status of COPD in rural West Bengal. Lung India 2022; 39:242-246. [PMID: 35488681 PMCID: PMC9200203 DOI: 10.4103/lungindia.lungindia_439_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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Understanding the spirometry-based prevalence with concomitant assessment of the health status is important to appreciate the chronic obstructive pulmonary disease (COPD)-scenario in a geographic area. There is hardly any such rural data available from the developing world. Methods We screened the adult population (>40 but <75 years) of seven villages in two different blocks of Birbhum district, West Bengal, for the presence respiratory symptoms (active or historical within 1 year). Those screened positive were tested with spirometry to diagnose COPD on having post bronchodilator FEV1/FVC <0.7. The COPD subjects were then applied with COPD assessment test (CAT). Results Out of 6255 subjects residing in the villages, 1984 subjects belonged to the target age group and 51.56% (1013 of 1984) of them qualified for spirometry which was possible in 953 (88.81%) of them. COPD was identified in 166 (16.36%) of symptomatic individuals. The calculated prevalence of COPD was 2.65% in overall population and 8.367% in population above 40 years. The COPD patients (mean age 59.77 ± 9.47 years) had a male preponderance (120 [72.29%] of 166). They were mostly malnourished (body mass index = 17.15 ± 2.97), with poorhealth status (CAT = 15) and moderate degree (GOLD category-II) of airflow limitation showing FEV1/FVC as 0.60 ± 0.07 and the mean post bronchodilator FEV1 as 52% of predicted (1.26 ± 0.42 L). Most of the sufferers (74.09%) were either active (n = 88) or ex-smokers (n = 35) (>10 pack-years). The nonsmokers constituted 25, 90% (n = 43). Conclusion The rural COPD prevalence in Bengal is far higher than the estimated national average with the health status of the sufferers been poor.
Collapse
Affiliation(s)
- Rupak Kumar Ghosh
- Department of Airway Diseases, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Dipanjan Saha
- Department of Airway Diseases, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Madan Sarma
- Department of Airway Diseases, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Pallav Bhattacharyya
- Department of Airway Diseases, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Saibal Majumdar
- Department of Disease Biology, Liver Foundation, Kolkata, West Bengal, India
| | - Abhijit Chowdhury
- Department of Disease Biology, Liver Foundation, Kolkata, West Bengal, India
| | | |
Collapse
|
17
|
Padhy SR, Bhattacharyya P, Dash PK, Nayak SK, Parida SP, Baig MJ, Mohapatra T. Elucidation of dominant energy metabolic pathways of methane, sulphur and nitrogen in respect to mangrove-degradation for climate change mitigation. J Environ Manage 2022; 303:114151. [PMID: 34844054 DOI: 10.1016/j.jenvman.2021.114151] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 06/22/2021] [Revised: 11/02/2021] [Accepted: 11/22/2021] [Indexed: 06/13/2023]
Abstract
Mangroves play a key role in ecosystem balancing and climate change mitigation. It acts as a source and sink of methane (CH4), a major greenhouse gas responsible for climate change. Energy metabolic pathways of methane production (methanogenesis) and oxidation (methanotrophy) are directly driven by sulphur (S) and nitrogen (N) metabolism and salinity in coastal wetlands. To investigate, how mangrove-degradations, affect the source-sink behaviour of CH4; the pathways of CH4, S and N were studied through whole-genome metagenomic approach. Soil samples were collected from degraded and undisturbed mangrove systems in Sundarban, India. Structural and functional microbial diversities (KEGG pathways) of CH4, S and N metabolism were analysed and correlated with labile carbon pools and physico-chemical properties of soil. Overall, the acetoclastic pathway of methanogenesis was dominant. However, the relative proportion of conversion of CO2 to CH4 was more in degraded mangroves. Methane oxidation was higher in undisturbed mangroves and the serine pathway was dominant. After serine, the ribulose monophosphate pathway of CH4 oxidation was dominant in degraded mangrove, while the xylulose monophosphate pathway was dominant in undisturbed site as it is more tolerant to salinity and higher pH. The assimilatory pathway (AMP) of S-metabolism was dominant in both systems. But in AMP pathway, adenosine triphosphate sulfurylase enzyme reads were higher in degraded mangrove, while NADPH-sulfite reductase abundance was higher in undisturbed mangrove due to higher salinity, and pH. In N-metabolism, the denitrification pathway was predominant in degraded sites, whereas the dissimilatory nitrate reduction pathway was dominant in undisturbed mangroves. The relative ratios of sulphur reducing bacteria (SRB): methanogens were higher in degraded mangrove; however, methanotrophs:methanogens was higher in undisturbed mangrove indicated lower source and greater sink capacity of CH4 in the system. Microbial manipulation in mangrove-rhizosphere for regulating major energy metabolic pathways of methane could open-up a new window of climate change mitigation in coastal wetlands.
Collapse
Affiliation(s)
- S R Padhy
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India; Maharaja Sriram Chandra Bhanja Deo University, Baripada, Odisha, India.
| | - P Bhattacharyya
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India.
| | - P K Dash
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India.
| | - S K Nayak
- Maharaja Sriram Chandra Bhanja Deo University, Baripada, Odisha, India.
| | - S P Parida
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India.
| | - M J Baig
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India.
| | - T Mohapatra
- Indian Council of Agricultural Research, New Delhi, India.
| |
Collapse
|
18
|
Ghosh D, Bhattacharyya P, Choini S, Ghost M, Samaddar S, Das P, Das N, Saha V, Krishnan S, Ghara N. Early experience with blinatumomab in B-cell precursor (BCP) acute lymphoblastic leukaemia (ALL) at the Tata Medical Center (TMC), Kolkata. Pediatric Hematology Oncology Journal 2022. [DOI: 10.1016/j.phoj.2022.10.184] [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: 11/26/2022] Open
|
19
|
Dasgupta S, Ghosh N, Choudhury P, Joshi M, Chowdhury SR, Bhattacharyya P, Chaudhury K. NMR metabolomic and microarray-based transcriptomic data integration identifies unique molecular signatures of hypersensitivity pneumonitis. Mol Omics 2021; 18:101-111. [PMID: 34881764 DOI: 10.1039/d1mo00209k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hypersensitivity pneumonitis (HP) is an immune-mediated granulomatous interstitial lung disease (ILD) that results from repeated inhalation of certain antigens. Despite major advances in research, pathophysiology of the disease remains poorly understood. The present study combines metabolomic and transcriptomic data to determine alterations in HP subjects as compared with healthy controls. Metabolic signatures were identified in serum, exhaled breath condensate (EBC) and bronchoalveolar lavage fluid (BALF) of HP patients using proton nuclear magnetic resonance (NMR) metabolomics. The expression of three metabolites, i.e., lactate, pyruvate, and proline, was found to be significantly altered in all three biofluids. The potential of differential diagnosis based on these three metabolites was investigated by including a group of patients with sarcoidosis, which is another type of granulomatous ILD. In addition, differentially expressed transcriptomic fingerprints in blood samples were identified by analyzing a Gene Expression Omnibus (GEO) database. The transcriptomics analysis of these microarray-based data revealed 59 genes to be significantly dysregulated in patients with HP. Over representation analysis of the metabolites and genes of interest was performed using IMPaLA (Integrated Molecular Pathway Level Analysis) version 12. Integrated analysis of serum metabolite signatures and blood gene expression suggests dysregulation of PI3K-AKT signaling and TCA cycle pathways in these patients. This preliminary study is a step towards better understanding of the pathogenesis of HP by identification of differentially expressed metabolites and transcriptomic fingerprints. These molecular signatures may be explored as diagnostic markers for differentiating HP from other lung diseases.
Collapse
Affiliation(s)
- Sanjukta Dasgupta
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, 721302, India.
| | - Nilanjana Ghosh
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, 721302, India.
| | - Priyanka Choudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, 721302, India.
| | - Mamata Joshi
- National Facility for High-field NMR, Tata Institute of Fundamental Research, Mumbai, India
| | | | | | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, 721302, India.
| |
Collapse
|
20
|
Bhattacharyya P, Jana MK, Saha D, Paul M, Mukherjee A, Saha R. The increasing trend and the seasonal variation in attendance of diffuse parenchymal lung disease patients presenting to a pulmonary clinic in Eastern India. Lung India 2021; 38:529-532. [PMID: 34747734 PMCID: PMC8614618 DOI: 10.4103/lungindia.lungindia_999_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background: Diffuse parenchymal lung disease (DPLD) is not an uncommon problem in clinical practice. Although the exact prevalence of DPLD in India is not known, the relative etiological distribution in DPLD in India has been reported. There has been no information as regards the seasonality of the disease. Patients and Methods: The archive of the Institute of Pulmocare and Research, Kolkata, was searched for the number of new patients registered at the outpatient department to a single consultant (practicing in the same style on appointment only) over years from 2009 to 2019. The attendance (absolute and relative) was arranged year wise and then month wise to look for the annual and seasonal trends, if any. Results: A total of 2226 patients were registered from 2009 to 2019. There has been a steady increase in both the absolute number (104 in 2009 to 204 in 2019) and the relative percentage of attendance (4.36% in 2009 to 6.9% in 2019) of new registration of DPLD patients over the years. Regarding seasonal variation, two consistent peaks in attendance have been observed as December–January and April–May over the years with dips in February and September; the first being more consistent then the latter. Conclusions: The increase in relative attendance in the DPLD patients over the years needs further investigation to establish a rising trends in incidence and prevalence of DPLD. The unequivocal trend in seasonal variation needs attention and further research.
Collapse
Affiliation(s)
| | - Milan Kumar Jana
- Department of Parenchymal Lung Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Dipanjan Saha
- Department of Parenchymal Lung Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Mintu Paul
- Department of Parenchymal Lung Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Arindam Mukherjee
- Department of Parenchymal Lung Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Rahul Saha
- Department of Parenchymal Lung Disease, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| |
Collapse
|
21
|
Choudhury P, Bhattacharya A, Dasgupta S, Ghosh N, Senpupta S, Joshi M, Bhattacharyya P, Chaudhury K. Identification of novel metabolic signatures potentially involved in the pathogenesis of COPD associated pulmonary hypertension. Metabolomics 2021; 17:94. [PMID: 34599402 DOI: 10.1007/s11306-021-01845-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 06/30/2021] [Accepted: 09/21/2021] [Indexed: 01/29/2023]
Abstract
INTRODUCTION Chronic obstructive pulmonary disease (COPD) associated pulmonary hypertension (COPD-PH), one of the most prevalent forms of PH, is a major burden on the healthcare system. Although PH in COPD is usually of mild-to-moderate severity, its presence is associated with shorter survival, more frequent exacerbations and worse clinical outcomes. The pathophysiologic mechanisms responsible for PH development in COPD patients remain unclear. It is envisioned that a better understanding of the underlying mechanism will help in diagnosis and future treatment strategies. OBJECTIVES The present study aims to determine metabolomic alterations in COPD-PH patients as compared to healthy controls. Additionally, to ensure that the dysregulated metabolites arise due to the presence of PH per se, an independent COPD cohort is included for comparison purposes. METHODS Paired serum and exhaled breath condensate (EBC) samples were collected from male patients with COPD-PH (n = 60) in accordance with the 2015 European Society of Cardiology (ESC)/European Respiratory Society (ERS) guidelines. Age, sex and BMI matched healthy controls (n = 57) and COPD patients (n = 59) were recruited for comparison purposes. All samples were characterized using 1H nuclear magnetic resonance (NMR) spectroscopy. RESULTS Fifteen serum and 9 EBC metabolites were found to be significantly altered in COPD-PH patients as compared to healthy controls. Lactate and pyruvate were dysregulated in both the biofluids and were further correlated with echocardiographic systolic pulmonary artery pressure (sPAP). Multivariate analysis showed distinct class separation between COPD-PH and COPD. CONCLUSIONS The findings of this study indicate an increased energy demand in patients with COPD-PH. Furthermore, both lactate and pyruvate correlate with sPAP, indicating their importance in the clinical course of the disease.
Collapse
Affiliation(s)
- Priyanka Choudhury
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Anindita Bhattacharya
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Sanjukta Dasgupta
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Nilanjana Ghosh
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | | | - Mamata Joshi
- National Facility for High-Field NMR, Tata Institute of Fundamental Research, Mumbai, India
| | | | - Koel Chaudhury
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| |
Collapse
|
22
|
Dey D, Sengupta S, Bhattacharyya P. Long-term use of Vitamin-C in chronic obstructive pulmonary disease: Early pilot observation. Lung India 2021; 38:500-501. [PMID: 34472536 PMCID: PMC8509159 DOI: 10.4103/lungindia.lungindia_959_20] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Debkanya Dey
- Department of Airway Diseases, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Sayoni Sengupta
- Department of Airway Diseases, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | | |
Collapse
|
23
|
Bhattacharyya P, Singh B, Sarkar S, Das SK, Chakraborty B, Saha D, Chakraborty K, Saha I, Chaudhury K. Impact of long-term doxycycline on lung function & exacerbations: A real-world open, prospective pilot observation on chronic obstructive pulmonary disease. Indian J Med Res 2021; 153:465-474. [PMID: 34380793 PMCID: PMC8354042 DOI: 10.4103/ijmr.ijmr_1254_18] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background & objectives: Upregulation of matrix metalloproteinases (MMPs) is related to the pathogenesis of chronic obstructive pulmonary disease (COPD). We aimed at assessing the tolerability and impact of long-term use of MMP inhibitor doxycycline in COPD. Methods: A cohort of COPD patients was randomized to continue a uniform COPD treatment with or without add-on long-term oral doxycycline. The lung exacerbations (spirometry), adverse events and health status (COPD Assessment Test score) were noted at 3, 6, 9 and 12 months of therapy. Measurement of the serum MMP-2, and 9 and high-sensitive C-reactive protein (hs-CRP) levels was done at the start of the study and at three months, whenever possible. Results: There were 27, 19, 13 and 10 patients with add-on doxycycline group and 22, 19, 11 and 7 patients with COPD treatment alone at 3, 6, 9 and 12 months of treatment respectively. The improvement was obviousaconsistent and serial improvement of health st nd mostly (at 6 and 12 months) significant (P>0.05) for lung function parameters [forced expiratory volume in one second (FEV1), FEV1/forced vital capacity (FVC) and forced expiratory flow at 25-75% of FVC (FEF25-75)] and universal for health status at all measurements, with an overall 26.69 per cent reduction in exacerbations. The analysis with the lung function changes in the available population with protocol violation also supported the same trend. The concomitant reduction in serum MMP-9 (P=0.01), MMP-2 (P=0.01) and hs-CRP (P=0.0001) levels (n=21) at three months was also significant. The adverse reactions with add-on doxycycline appeared acceptable. Interpretation & conclusions: Long-term doxycycline appears well tolerated and seems to improve lung function, health status and exacerbations in COPD. The claim needs further scientific validations.
Collapse
Affiliation(s)
| | - Brajesh Singh
- Department of Biochemistry, Command Hospital, Kolkata, West Bengal, India
| | - Surita Sarkar
- Department of Applied Physics, University of Calcutta, Kolkata, West Bengal, India
| | - Soumen Kumar Das
- Department of Pulmonology, Institute of Pulmocare & Research, Kolkata, West Bengal, India
| | | | - Dipanjan Saha
- Department of Pulmonology, Institute of Pulmocare & Research, Kolkata, West Bengal, India
| | - Kumar Chakraborty
- Department of General Medicine, Fortis Medical Centre, Sarat Bose Road, Kolkata, West Bengal, India
| | - Indranil Saha
- Department of Community Medicine, ESI PGIMSR & ESIC Medical College, Kolkata, West Bengal, India
| | - Koel Chaudhury
- School of Medical Science & Technology, Indian Institute of Technology, Kharagpur, West Bengal, India
| |
Collapse
|
24
|
Ghosh N, Choudhury P, Joshi M, Bhattacharyya P, Roychowdhury S, Banerjee R, Chaudhury K. Global metabolome profiling of exhaled breath condensates in male smokers with asthma COPD overlap and prediction of the disease. Sci Rep 2021; 11:16664. [PMID: 34404870 PMCID: PMC8370999 DOI: 10.1038/s41598-021-96128-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 10/24/2020] [Accepted: 07/30/2021] [Indexed: 02/07/2023] Open
Abstract
Asthma-chronic obstructive pulmonary disease (COPD) overlap, termed as ACO, is a complex heterogeneous disease characterised by persistent airflow limitation, which manifests features of both asthma and COPD. These patients have a worse prognosis, in terms of more frequent and severe exacerbations, more frequent symptoms, worse quality of life, increased comorbidities and a faster lung function decline. In absence of clear diagnostic or therapeutic guidelines, ACO presents as a challenge to clinicians. The present study aims to investigate whether ACO patients have a distinct exhaled breath condensate (EBC) metabolic profile in comparison to asthma and COPD. A total of 132 age and BMI matched male smokers were recruited in the exploratory phase which consisted of (i) controls = 33 (ii) asthma = 34 (iii) COPD = 30 and (iv) ACO = 35. Using nuclear magnetic resonance (NMR) metabolomics, 8 metabolites (fatty acid, propionate, isopropanol, lactate, acetone, valine, methanol and formate) were identified to be significantly dysregulated in ACO subjects when compared to both, asthma and COPD. The expression of these dysregulated metabolites were further validated in a fresh patient cohort consisting of (i) asthma = 32 (ii) COPD = 32 and (iii) ACO = 40, which exhibited a similar expression pattern. Multivariate receiver operating characteristic (ROC) curves generated using these metabolites provided a robust ACO classification model. The findings were also integrated with previously identified serum metabolites and inflammatory markers to develop a robust predictive model for differentiation of ACO. Our findings suggest that NMR metabolomics of EBC holds potential as a platform to identify robust, non-invasive biomarkers for differentiating ACO from asthma and COPD.
Collapse
Affiliation(s)
- Nilanjana Ghosh
- grid.429017.90000 0001 0153 2859School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302 India
| | - Priyanka Choudhury
- grid.429017.90000 0001 0153 2859School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302 India
| | - Mamata Joshi
- grid.22401.350000 0004 0502 9283National Facility for High-Field NMR, Tata Institute of Fundamental Research, Mumbai, India
| | | | | | - Rintu Banerjee
- grid.429017.90000 0001 0153 2859Department of Agricultural and Food Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Koel Chaudhury
- grid.429017.90000 0001 0153 2859School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302 India
| |
Collapse
|
25
|
Padhy SR, Bhattacharyya P, Nayak SK, Dash PK, Mohapatra T. A unique bacterial and archaeal diversity make mangrove a green production system compared to rice in wetland ecology: A metagenomic approach. Sci Total Environ 2021; 781:146713. [PMID: 33784529 DOI: 10.1016/j.scitotenv.2021.146713] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [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: 01/20/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Mangrove provides significant ecosystem services, however, 40% of tropical mangrove was lost in last century due to climate change induced sea-level rise and anthropogenic activities. Sundarban-India, the largest contiguous mangrove of the world lost 10.5% of its green during 1930-2013 which primarily converted to rice-based systems. Presently degraded mangrove and adjacent rice ecology in Sundarban-India placed side by side and create typical ecology which is distinct in nature in respect to soil physicochemical properties, carbon dynamics, and microbial diversities. We investigated the structural and functional diversities of bacteria and archaea through Illumina MiSeq metagenomic analysis using V3-V4 region of 16S rRNA gene approach that drives greenhouse gases emission and carbon-pools. Remote sensing-data base were used to select the sites for collecting the soil and gas samples. The methane and nitrous oxide emissions were lower in mangrove (-0.04 mg m-2 h-1 and -52.8 μg m-2 h-1) than rice (0.26 mg m-2 h-1 and 44.7 μg m-2 h-1) due to less availability of carbon-substrates and higher sulphate availability (85.8% more than rice). The soil labile carbon-pools were more in mangrove, but lower microbial activities were noticed due to stress conditions. A unique microbial feature indicated by higher methanotrophs: methanogens (11.2), sulphur reducing bacteria (SRB): methanogens (93.2) ratios and lower functional diversity (7.5%) in mangrove than rice. These could be the key drivers of lower global warming potential (GWP) in mangrove that make it a green production system. Therefore, labile carbon build-up potential (38%) with less GWP (63%) even in degraded-mangrove makes it a clean production system than wetland-rice that has high potential to climate change mitigation. The whole genome metagenomic analysis would be the future research priority to identify the predominant enzymatic pathways which govern the methanogenesis and methanotrophy in this system.
Collapse
Affiliation(s)
- S R Padhy
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India; Maharaja Sriram Chandra Bhanja Deo University, Baripada, Odisha, India
| | - P Bhattacharyya
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India.
| | - S K Nayak
- Maharaja Sriram Chandra Bhanja Deo University, Baripada, Odisha, India
| | - P K Dash
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India
| | - T Mohapatra
- Indian Council of Agricultural Research, New Delhi, India
| |
Collapse
|
26
|
Sarkar S, Ghosh P, Gehani A, Ghara N, Bhattacharyya P. Multidisciplinary corroboration in differentiation syndrome: a case report. J Med Case Rep 2021; 15:226. [PMID: 33947461 PMCID: PMC8097890 DOI: 10.1186/s13256-021-02790-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 03/16/2021] [Indexed: 12/30/2022] Open
Abstract
Background Differentiation syndrome (DS) is a life-threatening complication that may be seen in patients with acute promyelocytic leukaemia undergoing induction therapy with all-trans retinoic acid or arsenic trioxide. It can lead to severe inflammatory response syndrome and shock if adequate measures are not taken immediately. The radiological features of lung nodules with changes in ground-glass opacity can represent DS. The principal unique feature of the case reported here is that the diagnosis of DS was based on imaging results in the absence of a low total leukocyte count.
Case presentation A 14-year-old Indian girl diagnosed with acute promyelocytic leukaemia currently undergoing a chemotherapy regimen that included all-trans retinoic acid/arsenic trioxide was sent to the radiology department for investigation of respiratory distress which she had developed soon after the initiation of chemotherapy. Her chest radiograph showed bilateral lower zone lung infiltrates. Computed tomography (CT) revealed changes in ground-glass opacity in the lower lobes with multiple lung nodules. Differential diagnosis included bacterial, viral or fungal infections, leukemic infiltrates, drug toxicity, pulmonary haemorrhage or leukostasis. She was started on dexamethasone immediately after stopping the chemotherapy with all-trans retinoic acid/arsenic trioxide and given ventilatory support. Her condition subsequently improved and her follow-up chest radiograph and CT scan showed a significant reduction of abnormal lung findings. Based on the clinical improvement and the resolution of findings on imaging following the withdrawal of all-trans retinoic acid/arsenic trioxide, we made the diagnosis of DS. Conclusions Though a rather unusual possibility, the treatment history of the patient enabled a rather crucial diagnosis in the nick of time and imaging played a pivotal role. This case further iterates the importance of keeping DS in mind when dealing with similar patients in the future.
Collapse
Affiliation(s)
- Sayan Sarkar
- Department of Radiology, Tata Medical Center, 14 MAR (E-W), New Town, Rajarhat, Kolkata, 700160, West Bengal, India.
| | - Priya Ghosh
- Department of Radiology, Tata Medical Center, 14 MAR (E-W), New Town, Rajarhat, Kolkata, 700160, West Bengal, India
| | - Anisha Gehani
- Department of Radiology, Tata Medical Center, 14 MAR (E-W), New Town, Rajarhat, Kolkata, 700160, West Bengal, India
| | - Niharendu Ghara
- Department of Pediatric Haematology, Tata Medical Center, 14 MAR (E-W), New Town, Rajarhat, Kolkata, 700160, West Bengal, India
| | - Parthasarathi Bhattacharyya
- Department of Pediatric ICU, Tata Medical Center, 14 MAR (E-W), New Town, Rajarhat, Kolkata, 700160, West Bengal, India
| |
Collapse
|
27
|
Majumdar S, Verma R, Saha A, Bhattacharyya P, Maji P, Surjit M, Kundu M, Basu J, Saha S. Perspectives About Modulating Host Immune System in Targeting SARS-CoV-2 in India. Front Genet 2021; 12:637362. [PMID: 33664772 PMCID: PMC7921795 DOI: 10.3389/fgene.2021.637362] [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: 12/03/2020] [Accepted: 01/19/2021] [Indexed: 12/16/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), the causative agent of coronavirus induced disease-2019 (COVID-19), is a type of common cold virus responsible for a global pandemic which requires immediate measures for its containment. India has the world's largest population aged between 10 and 40 years. At the same time, India has a large number of individuals with diabetes, hypertension and kidney diseases, who are at a high risk of developing COVID-19. A vaccine against the SARS-CoV-2, may offer immediate protection from the causative agent of COVID-19, however, the protective memory may be short-lived. Even if vaccination is broadly successful in the world, India has a large and diverse population with over one-third being below the poverty line. Therefore, the success of a vaccine, even when one becomes available, is uncertain, making it necessary to focus on alternate approaches of tackling the disease. In this review, we discuss the differences in COVID-19 death/infection ratio between urban and rural India; and the probable role of the immune system, co-morbidities and associated nutritional status in dictating the death rate of COVID-19 patients in rural and urban India. Also, we focus on strategies for developing masks, vaccines, diagnostics and the role of drugs targeting host-virus protein-protein interactions in enhancing host immunity. We also discuss India's strengths including the resources of medicinal plants, good food habits and the role of information technology in combating COVID-19. We focus on the Government of India's measures and strategies for creating awareness in the containment of COVID-19 infection across the country.
Collapse
Affiliation(s)
| | - Rohit Verma
- Virology Laboratory, Vaccine and Infectious Disease Research Centre, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | - Avishek Saha
- Ubiquitous Analytical Techniques, CSIR-Central Scientific Instruments Organisation, Chandigarh, India
| | | | - Pradipta Maji
- Biomedical Imaging and Bioinformatics Lab, Machine Intelligence Unit, Indian Statistical Institute, Kolkata, India
| | - Milan Surjit
- Virology Laboratory, Vaccine and Infectious Disease Research Centre, Translational Health Science and Technology Institute, NCR Biotech Science Cluster, Faridabad, India
| | | | - Joyoti Basu
- Department of Chemistry, Bose Institute, Kolkata, India
| | - Sudipto Saha
- Division of Bioinformatics, Bose Institute, Kolkata, India
| |
Collapse
|
28
|
Bandyopadhyaya I, Islam MA, Bhattacharyya P, Saha G. Automatic lung sound cycle extraction from single and multichannel acoustic recordings. Biomed Signal Process Control 2021. [DOI: 10.1016/j.bspc.2020.102332] [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: 11/28/2022]
|
29
|
Bhattacharyya P, Saha D, Sengupta S, De D. Feasibility of testing bronchodilator responsiveness with glycopyrronium in obstructive airway diseases: the initial appraisal of the pilot experience. J Assoc Chest Physicians 2021. [DOI: 10.4103/jacp.jacp_34_20] [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: 11/04/2022] Open
|
30
|
Abstract
Severe acute respiratory syndrome-coronavirus-2 (SARS CoV-2) is a novel virus. There has been an increasing number of case reports on multisystem inflammatory syndrome in children (MIS-C) but the global and population-specific incidence of MIS-C particularly in Asian countries, its causal relationship with SARS-CoV-2 and its immunopathogenesis remain unknown. Emerging questions on how the pathophysiology of MIS-C differs from that of Kawasaki disease (KD) and non-KD inflammatory syndromes need to be answered. Genetic factors influencing the incidence of MIS-C in the different ethnic populations are to be explored. What happens to the children with MIS-C, in the long run, remains unknown to date. Multicenter clinical trials are needed to establish optimal treatment and follow-up for MIS-C. HOW TO CITE THIS ARTICLE Bhattacharyya P. Multisystem Inflammatory Syndrome of Children Related to SARS-CoV-2: A Novel Experience in Children with a Novel Virus. Indian J Crit Care Med 2020;24(11):1010-1011.
Collapse
Affiliation(s)
- Parthasarathi Bhattacharyya
- Department of Paediatric Haemato-Oncology, Paediatric Onco-Critical Care Unit, Tata Medical Center, Kolkata, West Bengal, India
| |
Collapse
|
31
|
Bhattacharyya P, Saha D, Paul M, Ganguly D, Mukherjee B, Roy Chowdhury S, RoyChoudhury S, Agarwal P, Halder I, Ghosh Roy D, Ray S. Two chair test: a substitute of 6 min walk test appear cardiopulmonary reserve specific. BMJ Open Respir Res 2020; 7:7/1/e000447. [PMID: 32963026 PMCID: PMC7509960 DOI: 10.1136/bmjresp-2019-000447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 06/08/2019] [Revised: 12/13/2019] [Accepted: 01/31/2020] [Indexed: 11/08/2022] Open
Abstract
Background A simple and efficient exercise test possible in a small space is welcome to supplement 6 min walk test (6MWT) that demands a 100 feet corridor to perform. Methods The proposed two chair test (2CT) makes a person to sit and move five times between two chairs placed face to face at 5 feet apart and note the changes in pulse-rate (PR) and arterial oxygen saturation (SpO2) at every 10 s for 2 min after that. Comparison of the post-exercise measurements (PR and SpO2) with a repeat performance in same patients was done for reproducibility and doing the same after 6MWT and 2CT in another set of patients was meant for for acceptability. The statistical analysis was made on moment to moment change, mean maximal difference and mean cumulative difference for the measurements using p value, z-score, r value and principal component analysis (PCA). Findings A total of 40 and 60 volunteers were included for testing reproducibility and acceptability. On both the sets, the difference in most of comparisons between the measured variable (PR and SpO2) showed the p values remaining insignificant (>0.05), and z-score being <1 SD of the corresponding other and the correlation coefficients (r) remaining excellent (>0.9). Furthermore, the PCA shows complete overlapping. The post-exercise changes did not corelate the walking distance in 6MWT. Interpretation The proposed 2CT demands small space and appears reproducible and comparable with 6MWT in terms of its post-exercise impact on PR and SpO2. This novel test also appears more of cardiopulmonary reserve specific.
Collapse
Affiliation(s)
| | - Dipanjan Saha
- Pulmonology, Institute of Pulmocare and Research, New Town, India
| | - Mintu Paul
- Pulmonology, Institute of Pulmocare and Research, New Town, India
| | - Dhiman Ganguly
- Pulmonology, Institute of Pulmocare and Research, Kolkata, India
| | | | | | | | - Pawan Agarwal
- Consultant Pulmonologist, Apollo Hospital, Kolkata, India
| | | | | | - Shuvanan Ray
- Consultant Cardiologist, Fortes Hospital Anandapur, Kolkata, West Bengal, India
| |
Collapse
|
32
|
Ghosh N, Choudhury P, Kaushik SR, Arya R, Nanda R, Bhattacharyya P, Roychowdhury S, Banerjee R, Chaudhury K. Metabolomic fingerprinting and systemic inflammatory profiling of asthma COPD overlap (ACO). Respir Res 2020; 21:126. [PMID: 32448302 PMCID: PMC7245917 DOI: 10.1186/s12931-020-01390-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 05/10/2020] [Indexed: 12/13/2022] Open
Abstract
Background Asthma-COPD overlap (ACO) refers to a group of poorly studied and characterised patients reporting with disease presentations of both asthma and COPD, thereby making both diagnosis and treatment challenging for the clinicians. They exhibit a higher burden in terms of both mortality and morbidity in comparison to patients with only asthma or COPD. The pathophysiology of the disease and its existence as a unique disease entity remains unclear. The present study aims to determine whether ACO has a distinct metabolic and immunological mediator profile in comparison to asthma and COPD. Methods Global metabolomic profiling using two different groups of patients [discovery (D) and validation (V)] were conducted. Serum samples obtained from moderate and severe asthma [n = 34(D); n = 32(V)], moderate and severe COPD [n = 30(D); 32(V)], ACO patients [n = 35(D); 40(V)] and healthy controls [n = 33(D)] were characterized using gas chromatography mass spectrometry (GC-MS). Multiplexed analysis of 25 immunological markers (IFN-γ (interferon gamma), TNF-α (tumor necrosis factor alpha), IL-12p70 (interleukin 12p70), IL-2, IL-4, IL-5, IL-13, IL-10, IL-1α, IL-1β, TGF-β (transforming growth factor), IL-6, IL-17E, IL-21, IL-23, eotaxin, GM-CSF (granulocyte macrophage-colony stimulating factor), IFN-α (interferon alpha), IL-18, NGAL (neutrophil gelatinase-associated lipocalin), periostin, TSLP (thymic stromal lymphopoietin), MCP-1 (monocyte chemoattractant protein- 1), YKL-40 (chitinase 3 like 1) and IL-8) was also performed in the discovery cohort. Results Eleven metabolites [serine, threonine, ethanolamine, glucose, cholesterol, 2-palmitoylglycerol, stearic acid, lactic acid, linoleic acid, D-mannose and succinic acid] were found to be significantly altered in ACO as compared with asthma and COPD. The levels and expression trends were successfully validated in a fresh cohort of subjects. Thirteen immunological mediators including TNFα, IL-1β, IL-17E, GM-CSF, IL-18, NGAL, IL-5, IL-10, MCP-1, YKL-40, IFN-γ, IL-6 and TGF-β showed distinct expression patterns in ACO. These markers and metabolites exhibited significant correlation with each other and also with lung function parameters. Conclusions The energy metabolites, cholesterol and fatty acids correlated significantly with the immunological mediators, suggesting existence of a possible link between the inflammatory status of these patients and impaired metabolism. The present findings could be possibly extended to better define the ACO diagnostic criteria, management and tailoring therapies exclusively for the disease.
Collapse
Affiliation(s)
- Nilanjana Ghosh
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Priyanka Choudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Sandeep Rai Kaushik
- Translational Health Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Rakesh Arya
- Translational Health Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | - Ranjan Nanda
- Translational Health Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India
| | | | | | - Rintu Banerjee
- Department of Agricultural and Food Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| |
Collapse
|
33
|
Padhy SR, Bhattacharyya P, Dash PK, Reddy CS, Chakraborty A, Pathak H. Seasonal fluctuation in three mode of greenhouse gases emission in relation to soil labile carbon pools in degraded mangrove, Sundarban, India. Sci Total Environ 2020; 705:135909. [PMID: 31839306 DOI: 10.1016/j.scitotenv.2019.135909] [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: 04/02/2019] [Revised: 11/27/2019] [Accepted: 12/01/2019] [Indexed: 06/10/2023]
Abstract
Tropical mangrove represents one of the most threatened ecosystems despite their huge contribution to ecosystem services, carbon (C) sequestration and climate change mitigation. Understanding the system in light of seasonal fluctuations on greenhouse gases (GHGs) emissions due to human interferences and the tidal effect is important for devising site-specific real-time climate change mitigation strategies. In order to capture the seasonal variations, the three modes of transport of GHGs through pneumatophore, ebullition as bubbles and water-soluble diffusion was quantified. The three unique techniques for the gas collection were used to estimate the GHGs [methane (CH4), nitrous oxide (N2O) and carbon dioxide (CO2)] emission, at three degraded-mangrove sites in Sundarban, India. We identified three degraded mangrove ecologies based on the remote sensing data of 1930 and 2013 (mangrove-covered area in Sundarban; 2387, 2136 km2, respectively). Samples were collected and analyzed for four seasons [winter (November-January), summer (February-April), pre-monsoon (May-June) and monsoon (July-October)], at three representative sites (Sadhupur, Dayapur, and Pakhiralaya). Monsoonal CH4 and CO2 fluxes (0.353 ± 0.026 and 64.5 ± 6.1 mmol m-2 d-1, respectively) were higher than winter and summer. However, the soil labile C pools showed the opposite trend i.e. more in summer followed by winter and monsoon. In contrast, the N2O fluxes were more during summer (54.2 ± 3.2 μmol m-2 d-1). The stagnant water had higher dissolved GHGs concentration compared to tidewater due to less salinity and a long time of stagnation. The mode of transport of GHGs through pneumatophore, ebullition, and water-soluble diffusion was also significantly varied with seasons, soil‑carbon status and tidewater intrusion. Therefore, seasonal fluctuations of GHGs emission and tidal effect must be considered along with soil labile C pools for GHG-C budgeting and climate change mitigation in the mangrove ecosystem.
Collapse
Affiliation(s)
- S R Padhy
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India
| | - P Bhattacharyya
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India.
| | - P K Dash
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India
| | - C S Reddy
- National Remote Sensing Centre, Hyderabad, India
| | | | - H Pathak
- ICAR-National Rice Research Institute (NRRI), Cuttack, Odisha, India
| |
Collapse
|
34
|
Bhattacharyya P, Paul M. Doxycycline orally on long term is well tolerated and may be beneficial in DPLD. J Assoc Chest Physicians 2020. [DOI: 10.4103/jacp.jacp_44_19] [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: 11/04/2022] Open
|
35
|
Bhattacharyya P, Sengupta S, Saha D, Paul M, Choudhury P, Dasgupta S. Group III Pulmonary Hypertension: relative frequency of different etiologies in a referral pulmonary OPD. J Assoc Chest Physicians 2020. [DOI: 10.4103/jacp.jacp_3_20] [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: 11/04/2022] Open
|
36
|
Hsieh S, Bhattacharyya P, Zu C, Mittiga T, Smart TJ, Machado F, Kobrin B, Höhn TO, Rui NZ, Kamrani M, Chatterjee S, Choi S, Zaletel M, Struzhkin VV, Moore JE, Levitas VI, Jeanloz R, Yao NY. Imaging stress and magnetism at high pressures using a nanoscale quantum sensor. Science 2019; 366:1349-1354. [DOI: 10.1126/science.aaw4352] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 11/06/2019] [Indexed: 01/19/2023]
Abstract
Pressure alters the physical, chemical, and electronic properties of matter. The diamond anvil cell enables tabletop experiments to investigate a diverse landscape of high-pressure phenomena. Here, we introduce and use a nanoscale sensing platform that integrates nitrogen-vacancy (NV) color centers directly into the culet of diamond anvils. We demonstrate the versatility of this platform by performing diffraction-limited imaging of both stress fields and magnetism as a function of pressure and temperature. We quantify all normal and shear stress components and demonstrate vector magnetic field imaging, enabling measurement of the pressure-driven α↔ϵ phase transition in iron and the complex pressure-temperature phase diagram of gadolinium. A complementary NV-sensing modality using noise spectroscopy enables the characterization of phase transitions even in the absence of static magnetic signatures.
Collapse
Affiliation(s)
- S. Hsieh
- Department of Physics, University of California, Berkeley, CA 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - P. Bhattacharyya
- Department of Physics, University of California, Berkeley, CA 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - C. Zu
- Department of Physics, University of California, Berkeley, CA 94720, USA
| | - T. Mittiga
- Department of Physics, University of California, Berkeley, CA 94720, USA
| | - T. J. Smart
- Department of Earth and Planetary Science, University of California, Berkeley, CA 94720, USA
| | - F. Machado
- Department of Physics, University of California, Berkeley, CA 94720, USA
| | - B. Kobrin
- Department of Physics, University of California, Berkeley, CA 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - T. O. Höhn
- Department of Physics, University of California, Berkeley, CA 94720, USA
- Fakultät für Physik, Ludwig-Maximilians-Universität München, 80799 Munich, Germany
| | - N. Z. Rui
- Department of Physics, University of California, Berkeley, CA 94720, USA
| | - M. Kamrani
- Department of Aerospace Engineering, Iowa State University, Ames, IA 50011, USA
| | - S. Chatterjee
- Department of Physics, University of California, Berkeley, CA 94720, USA
| | - S. Choi
- Department of Physics, University of California, Berkeley, CA 94720, USA
| | - M. Zaletel
- Department of Physics, University of California, Berkeley, CA 94720, USA
| | - V. V. Struzhkin
- Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA
| | - J. E. Moore
- Department of Physics, University of California, Berkeley, CA 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - V. I. Levitas
- Department of Aerospace Engineering, Iowa State University, Ames, IA 50011, USA
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA
- Ames Laboratory, Division of Materials Science and Engineering, Ames, IA 50011, USA
| | - R. Jeanloz
- Department of Earth and Planetary Science, University of California, Berkeley, CA 94720, USA
| | - N. Y. Yao
- Department of Physics, University of California, Berkeley, CA 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| |
Collapse
|
37
|
Dey S, Pradhan D, Saikia P, Bhattacharyya P, Khandelwal H, Adarsha KN. Intubation in the Intensive Care Unit: C-MAC video laryngoscope versus Macintosh laryngoscope. Med Intensiva 2019; 44:135-141. [PMID: 31780257 DOI: 10.1016/j.medin.2019.10.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 07/25/2019] [Revised: 09/30/2019] [Accepted: 10/07/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Various modifications of the Macintosh blade and direct laryngoscopy have been incorporated into practice to improve the intubation success rate and avoid complications while ensuring patient safety. This study evaluates the usefulness of two different direct laryngoscopy methods used by operators with various level of experience in the Intensive Care Unit. MATERIAL AND METHODS In a single centre prospective study, C-MAC and Macintosh laryngoscopes were compared in terms of laryngoscopy and intubation outcomes such as glottic visualization, number of intubation attempts, intubation success and satisfaction score. RESULTS During the one-year study period, 263 patients were evaluated and data of 218 patients were analyzed. The rate of successful first attempt intubation was higher in the video laryngoscope group (VL) (84% vs 57%; P<0.001). A significantly greater number of patients in the Macintosh laryngoscopy group had difficult visualization of the glottis in terms of the modified Cormack and Lehane classification and Percentage of Glottic Opening scale. CONCLUSION The use of video laryngoscope for intubation in ICU settings results in better visualization of the glottis and a higher incidence of successful intubation attempts.
Collapse
Affiliation(s)
- S Dey
- All India Institute of Medical Sciences, Raipur, India
| | - D Pradhan
- School of Medical Sciences and Research, Sharda University, New Delhi, India.
| | - P Saikia
- Guwahati Medical College, Guwahati, India
| | - P Bhattacharyya
- North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, India
| | - H Khandelwal
- Shri Guru Ram Rai Institute of Medical and Health Sciences, Dehradun, India
| | - K N Adarsha
- Apollo Hospital, Bannerghatta Road, Bengaluru, India
| |
Collapse
|
38
|
Das A, Bhave SJ, Pal B, Arun I, Goel G, Bhattacharya S, Sen S, Das J, Bhattacharyya P. Brucellosis Complicated by Kikuchi-Fujimoto Disease and Doxycycline-Induced Intracranial Hypertension. Indian J Pediatr 2019; 86:1063-1064. [PMID: 30945234 DOI: 10.1007/s12098-019-02937-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 03/18/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Anirban Das
- Department of Pediatric Hematology-Oncology, Tata Medical Centre, 14 Major Arterial Road (EW), Rajarhat, Kolkata, 700160, India.
| | | | - Bikramjit Pal
- Department of Ophthalmology, Tata Medical Centre, Kolkata, India
| | - Indu Arun
- Department Histopathology, Tata Medical Centre, Kolkata, India
| | - Gaurav Goel
- Department of Microbiology, Tata Medical Centre, Kolkata, India
| | | | - Saugata Sen
- Department of Radiology, Tata Medical Centre, Kolkata, India
| | - Jayanta Das
- Department of Nuclear Medicine, Tata Medical Centre, Kolkata, India
| | | |
Collapse
|
39
|
Sarkar S, Bhattacharyya P, Mitra M, Pal S. A novel approach towards non-obstructive detection and classification of COPD using ECG derived respiration. Australas Phys Eng Sci Med 2019; 42:1011-1024. [PMID: 31602592 DOI: 10.1007/s13246-019-00800-2] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 08/29/2019] [Accepted: 09/07/2019] [Indexed: 10/25/2022]
Abstract
The alarming rate of mortality and disability due to Chronic Obstructive Pulmonary Disease (COPD) has become a serious health concern worldwide. The progressive nature of this disease makes it inevitable to detect this disease in its early stages, leads to a greater demand for developing non-obstructive and reliable technology for COPD detection. The use of highly patient-effort dependent, time-consuming, and expensive methods are some major inherent limitations of previous techniques. Lack of knowledge about the disease and inadequacy of proper diagnostic tool for early detection of COPD is another reason behind the 3rd leading cause of death worldwide. For this reason, this study aims to explore the utility of ECG Derived Respiration (EDR) for classification between COPD patients and normal healthy subjects as EDR can be easily extracted from ECG. ECG and respiration signals collected from 30 normal and 30 COPD subjects were analysed. Error calculation and statistical analysis were performed to observe the similarity between original respiration and EDR signal. The morphological pattern changes of respiration and EDR signals were analysed and three different features were extracted from those. Classification was performed by different classifiers employing Decision Tree, Linear Discriminant Analysis (LDA), Support Vector Machine (SVM) and K-Nearest Neighbor (KNN). Apart from obtaining comparable classification performance it was seen that EDR has better potential than the original respiration signal for classification of COPD from normal population.
Collapse
Affiliation(s)
- Surita Sarkar
- Department of Applied Physics, University of Calcutta, Kolkata, 700009, India
| | | | - Madhuchhanda Mitra
- Department of Applied Physics, University of Calcutta, Kolkata, 700009, India
| | - Saurabh Pal
- Department of Applied Physics, University of Calcutta, Kolkata, 700009, India.
| |
Collapse
|
40
|
Singh B, Ghosh N, Saha D, Sarkar S, Bhattacharyya P, Chaudhury K. Effect of doxycyline in chronic obstructive pulmonary disease - An exploratory study. Pulm Pharmacol Ther 2019; 58:101831. [PMID: 31349003 DOI: 10.1016/j.pupt.2019.101831] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [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: 05/08/2019] [Revised: 07/15/2019] [Accepted: 07/23/2019] [Indexed: 01/09/2023]
Abstract
PURPOSE Various mechanisms, including oxidative stress, inflammation, and protease-antiprotease imbalance are proposed for the progressive decline in lung function in chronic obstructive pulmonary disease (COPD). Doxycycline, a broad spectrum tetracycline antibiotic, is reported to have non-antimicrobial matrix metalloproteinases (MMP) inhibitory action in various inflammatory conditions. The effect of doxycycline in COPD is hereby assessed in the present randomized prospective study. PATIENTS AND METHODS The first group of COPD patients (n = 30; mild (n = 3), moderate (n = 6), severe (n = 7), very severe (n = 14) as per GOLD II & III criteria was prescribed the standard therapy, a combination of (i) short acting anti-muscarinic agent (SAMA) + short acting β2 agonist (SABA) inhaled and (ii) corticosteroid inhaled (ICS) + long acting β2 agonist (LABA) (iii) ICS + LABA + LAMA. Whereas doxycycline (100 mg), was used daily once or twice as per Body Mass Index (BMI), as an add-on to existing standard therapy for the second group of patients (n = 30; mild (n = 2), moderate (n = 7), severe (n = 8), very severe (n = 13). All recruited patients were followed-up after 3 months of treatment. Lung function index FEV1(%) predicted, FEV1/FVC (%), quality of life status including COPD Assessment Test (CAT), St. George's Respiratory Questionnaire (SGRQ) were assessed. Routine blood cell count also was performed. RESULTS Biochemical analysis included estimation of oxidative stress markers, inflammatory cytokines and proteases in plasma of both the groups. Reduction in oxidative stress is evidenced by a significant decrease in Lipid hydro peroxides (LPO), total oxidative stress (TOS) and increase in glutathione peroxidase (GSH-PX), reduced glutathione (GSH) and total anti-oxidant capacity (TAO) nitrite and nitrate (NOx) along with peroxynitrate following 3 months of add-on doxycycline treatment. Reduced levels of cytokines such as interleukin IL-6, TNF-α, IL-8 were also observed. Multivariate analysis identified TNF-α major effective discriminant among pre and post doxycycline treated COPD patients. The expression of TNF-α was inversely correlated with FEV1/FVC (%) changes. The levels of MMP-2 and MMP-9/tissue inhibitors of metalloproteinases (TIMP)-1 ratio (MMP-9/ TIMP-1), also decreased significantly and the decline could be associated with TOS. A significant increase in bilirubin and reduced glutathione (GSH) level was noticed in standard therapy group. CONCLUSION These data suggest that the improvement in lung function and quality of life in COPD patients may probably be attributed to the antioxidant, anti-inflammatory and anti-MMP activity of doxycycline. The potential therapeutic role of long-term doxycycline, in addition to its traditional antibiotic effect, definitely warrants further attention.
Collapse
Affiliation(s)
- Brajesh Singh
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India
| | - Nilanjana Ghosh
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India
| | | | - Surita Sarkar
- Department of Applied Physics, University of Calcutta, Kolkata, India
| | | | - Koel Chaudhury
- School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, India.
| |
Collapse
|
41
|
Ghosh N, Choudhury P, Subramani E, Saha D, Sengupta S, Joshi M, Banerjee R, Roychowdhury S, Bhattacharyya P, Chaudhury K. Metabolomic signatures of asthma-COPD overlap (ACO) are different from asthma and COPD. Metabolomics 2019; 15:87. [PMID: 31165288 DOI: 10.1007/s11306-019-1552-z] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 05/29/2019] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Asthma-chronic obstructive pulmonary disease (COPD) overlap, termed as ACO, is a complex heterogeneous disease without any clear diagnostic or therapeutic guidelines. The pathophysiology of the disease, its characteristic features, and existence as a unique disease entity remains unclear. Individuals with ACO have a faster lung function decline, more frequent exacerbations, and worse quality of life than those with COPD or asthma alone. OBJECTIVES The present study aims to determine whether ACO has a distinct metabolic profile in comparison to asthma and COPD. METHODS Two different groups of patients were recruited as discovery (D) and validation (V) cohorts. Serum samples obtained from moderate and severe asthma patients diagnosed as per GINA guidelines [n = 34(D); n = 32(V)], moderate and severe COPD cases identified by GOLD guidelines [n = 30(D); 32(V)], ACO patients diagnosed by joint GOLD and GINA guidelines [n = 35(D); 40(V)] and healthy controls [n = 33(D)] were characterized using nuclear magnetic resonance (NMR) spectrometry. RESULTS Multivariate and univariate analysis indicated that 12 metabolites [lipid, isoleucine, N-acetylglycoproteins (NAG), valine, glutamate, citric acid, glucose, L-leucine, lysine, asparagine, phenylalanine and histidine] were dysregulated in ACO patients when compared with both asthma and COPD. These metabolites were further validated in a fresh cohort of patients, which again exhibited a similar expression pattern. CONCLUSIONS Our findings suggest that ACO has an enhanced energy and metabolic burden associated with it as compared to asthma and COPD. It is anticipated that our results will stimulate researchers to further explore ACO and unravel the pathophysiological complexities associated with the disease.
Collapse
Affiliation(s)
- Nilanjana Ghosh
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Priyanka Choudhury
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | - Elavarasan Subramani
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
| | | | | | - Mamata Joshi
- National Facility for High-field NMR, Tata Institute of Fundamental Research, Mumbai, India
| | - Rintu Banerjee
- Department of Agricultural & Food Engineering, Indian Institute of Technology Kharagpur, Kharagpur, India
| | | | | | - Koel Chaudhury
- School of Medical Science and Technology (SMST), Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
| |
Collapse
|
42
|
Bhattacharyya P, Dash PK, Swain CK, Padhy SR, Roy KS, Neogi S, Berliner J, Adak T, Pokhare SS, Baig MJ, Mohapatra T. Mechanism of plant mediated methane emission in tropical lowland rice. Sci Total Environ 2019; 651:84-92. [PMID: 30223222 DOI: 10.1016/j.scitotenv.2018.09.141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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: 06/26/2018] [Revised: 09/10/2018] [Accepted: 09/10/2018] [Indexed: 06/08/2023]
Abstract
Methane (CH4) is predominantly produced in lowland rice soil, but its emission from soil to atmosphere primarily depends on passage/conduit or capillary pore spaces present in rice plants. The gas transport mechanism through aerenchyma pore spaces of rice cultivars was studied to explore the plant mediated CH4 emission. Seven rice cultivars, based on the life cycle duration (LCD), were tested in tropical eastern India. Three LCD groups were, (a) Kalinga 1 and CR Dhan 204 (LCD: 110-120 days); (b) Lalat, Pooja and CR 1014 (LCD: 130-150 days); and (c) Durga and Varshadhan (LCD: 160-170 days). Rate of CH4emission, root exudates, root oxidase activities and shoot aerenchyma pore spaces were analyzed to study the mechanism of plant mediated emission from rice. Aerenchyma pore space was quantified in the hypothesis that it regulates the CH4 transportation from soil to atmosphere. The ratio of pore space area to total space was lowest in Kalinga 1 cultivar (0.29) and highest was in Varshadhan (0.43). Significant variations in the methane emission were observed among the cultivars with an average emission rate ranged from 0.86 mg m-2 h-1 to 4.96 mg m-2 h-1. The CH4 emission rates were lowest in short duration cultivars followed by medium and long duration ones. The greenhouse gas intensity considering average CH4 emission rate per unit grain yield was also lowest (0.35) in Kalinga 1 and relatively less in short and medium duration cultivars. Root exudation was higher at panicle initiation (PI) than maximum tillering (MT) stage. Lowest exudation was noticed in (197.2 mg C plant-1 day-1) Kalinga 1 and highest in Varsadhan (231.7 mg C plant-1 day-1). So we can say, the rate of CH4 emission was controlled by aerenchyma orientation, root exudation and biomass production rate which are the key specific traits of a cultivar. Identified traits were closely associated with duration and adaptability to cultivars grown in specific ecology. Therefore, there is possibility to breed rice cultivars depending on ecology, duration and having less CH4 emission potential, which could be effectively used in greenhouse gas mitigation strategies.
Collapse
Affiliation(s)
- P Bhattacharyya
- Division of Crop Production, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India.
| | - P K Dash
- Division of Crop Production, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India
| | - C K Swain
- Division of Crop Production, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India
| | - S R Padhy
- Division of Crop Production, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India
| | - K S Roy
- Deptartment of Environmental Science and Engineering, Marwadi University, Rajkot, Gujarat, India
| | - S Neogi
- Global Centre for Environment and Energy, Ahmadabad University, Ahmadabad, Gujarat, India
| | - J Berliner
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - T Adak
- Division of Crop Production, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India
| | - S S Pokhare
- Division of Crop Production, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India
| | - M J Baig
- Division of Crop Production, ICAR-National Rice Research Institute, Cuttack 753006, Odisha, India
| | | |
Collapse
|
43
|
Tripathi R, Moharana KC, Nayak AD, Dhal B, Shahid M, Mondal B, Mohapatra SD, Bhattacharyya P, Fitton N, Smith P, Shukla AK, Pathak H, Nayak AK. Ecosystem services in different agro-climatic zones in eastern India: impact of land use and land cover change. Environ Monit Assess 2019; 191:98. [PMID: 30675638 DOI: 10.1007/s10661-019-7224-7] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
Land use and land cover (LULC) change have considerable influence on ecosystem services. Assessing change in ecosystem services due to LULC change at different spatial and temporal scales will help to identify suitable management practices for sustaining ecosystem productivity and maintaining the ecological balance. The objective of this study was to investigate variations in ecosystem services in response to LULC change over 27 years in four agro-climatic zones (ACZ) of eastern India using satellite imagery for the year 1989, 1996, 2005, 2011 (Landsat TM) and 2016 (Landsat 8 OLI). The satellite images were classified into six LULC classes, agriculture land, forest, waterbody, wasteland, built-up, and mining area. During the study period (1989 to 2016), forest cover reduced by 5.2%, 13.7%, and 3.6% in Sambalpur, Keonjhar, and Kandhamal districts of Odisha, respectively. In Balasore, agricultural land reduced by 17.2% due to its conversion to built-up land. The value of ecosystem services per unit area followed the order of waterbodies > agricultural land > forests. A different set of indicators, e.g., by explicitly including diversity, could change the rank between these land uses, so the temporal trends within a land use are more important than the absolute values. Total ecosystem services increased by US$ 1296.4 × 105 (50.74%), US$ 1100.7 × 105 (98.52%), US$ 1867 × 105 (61.64%), and US$ 1242.6 × 105 (46.13%) for Sambalpur, Balasore, Kandhamal, and Keonjhar, respectively.
Collapse
Affiliation(s)
- Rahul Tripathi
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - K C Moharana
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - A D Nayak
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - B Dhal
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - Md Shahid
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - B Mondal
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - S D Mohapatra
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - P Bhattacharyya
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - Nuala Fitton
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
| | - Pete Smith
- Institute of Biological and Environmental Sciences, University of Aberdeen, 23 St Machar Drive, Aberdeen, AB24 3UU, UK
| | - A K Shukla
- ICAR-Indian Institute of Soil Sciences, Nabibagh, Bhopal, Madhya Pradesh, India
| | - H Pathak
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India
| | - A K Nayak
- ICAR - National Rice Research Institute, Cuttack, Odisha, 753006, India.
| |
Collapse
|
44
|
Sengupta S, Dey D, Bhattacharyya P. Correlating between chronic obstructive pulmonary disease assessment test and emPHasis score in Group III pulmonary hypertension patients. Lung India 2019; 36:86-87. [PMID: 30604718 PMCID: PMC6330794 DOI: 10.4103/lungindia.lungindia_71_18] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Sayoni Sengupta
- Department of Pulmonary Medicine, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | - Debkanya Dey
- Department of Pulmonary Medicine, Institute of Pulmocare and Research, Kolkata, West Bengal, India
| | | |
Collapse
|
45
|
Bhattacharyya P, Sengupta S. Does Pulmonary Hypertension Associate Long-Standing Asthma? An Observation. J Assoc Chest Physicians 2019. [DOI: 10.4103/jacp.jacp_29_18] [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: 11/04/2022] Open
|
46
|
Mittiga T, Hsieh S, Zu C, Kobrin B, Machado F, Bhattacharyya P, Rui NZ, Jarmola A, Choi S, Budker D, Yao NY. Imaging the Local Charge Environment of Nitrogen-Vacancy Centers in Diamond. Phys Rev Lett 2018; 121:246402. [PMID: 30608732 DOI: 10.1103/physrevlett.121.246402] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Indexed: 06/09/2023]
Abstract
Characterizing the local internal environment surrounding solid-state spin defects is crucial to harnessing them as nanoscale sensors of external fields. This is especially germane to the case of defect ensembles which can exhibit a complex interplay between interactions, internal fields, and lattice strain. Working with the nitrogen-vacancy (NV) center in diamond, we demonstrate that local electric fields dominate the magnetic resonance behavior of NV ensembles at a low magnetic field. We introduce a simple microscopic model that quantitatively captures the observed spectra for samples with NV concentrations spanning more than two orders of magnitude. Motivated by this understanding, we propose and implement a novel method for the nanoscale localization of individual charges within the diamond lattice; our approach relies upon the fact that the charge induces a NV dark state which depends on the electric field orientation.
Collapse
Affiliation(s)
- T Mittiga
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - S Hsieh
- Department of Physics, University of California, Berkeley, California 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Zu
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - B Kobrin
- Department of Physics, University of California, Berkeley, California 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - F Machado
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - P Bhattacharyya
- Department of Physics, University of California, Berkeley, California 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - N Z Rui
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - A Jarmola
- Department of Physics, University of California, Berkeley, California 94720, USA
- U.S. Army Research Laboratory, Adelphi, Maryland 20783, USA
| | - S Choi
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - D Budker
- Department of Physics, University of California, Berkeley, California 94720, USA
- Helmholtz Institut, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
| | - N Y Yao
- Department of Physics, University of California, Berkeley, California 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| |
Collapse
|
47
|
Bhattacharyya P, Ghosh R, Saha D, Chakraborty B, Bhattacharyya P, Sarma M, Mazumdar S, Chatterjee K, Chowdhury A. The impact on health status in short- and long-terms of a novel and non-orthodox real-world COPD rehabilitation effort in rural India: an appraisal. Int J Chron Obstruct Pulmon Dis 2018; 13:3313-3319. [PMID: 30410321 PMCID: PMC6197216 DOI: 10.2147/copd.s160665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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] [Indexed: 11/28/2022] Open
Abstract
Background Rehabilitation has been an integral part of management of COPD. Since the implementation of the standard rehabilitation protocol is hardly possible in the rural developing world, aiming to make a feasible alternate effort may be worthwhile. Methods COPD patients diagnosed through spirometry were first stabilized with 6 weeks of uniform pharmacotherapy. Subsequently, they were subjected to a curriculum-based intensive single-session intervention with education, bronchial hygiene, and exercise training. The latter involved whole body exercise, pursed lip breathing, and diaphragmatic exercise. The participants continued to practice the exercises under real-world encouragement and supervision from trained volunteers. The impact was appraised in terms of change in health status through COPD assessment test (CAT) score measurements at stabilization, and after 6 weeks and 1 year of the intensive training and education. Results At stabilization, 70 out of 96 selected COPD subjects (73%) turned up (with mean age 62±9 years and mean FEV1 as 1.16±0.39 L) showing improvement as per CAT score (p=0.0001) from pharmacotherapy. After practicing the imparted education and training for 6 weeks, all these 70 participants had further significant improvement in the health status (n=70, p=0.00001). This improvement, been reinforced and supervised, continued to last even at 1 year (n=54, p=0.0001). Conclusion The self-managed practice of a single-session education and training under real-world supervision can bring forth significant long-term improvement in the health status of COPD sufferers. Such simple and feasible intervention may substitute formal COPD rehabilitation programs in resource constraint situations.
Collapse
Affiliation(s)
| | - Rupak Ghosh
- Department of Pulmonology, Institute of Pulmocare and Research, Kolkata, India,
| | - Dipanjan Saha
- Department of Pulmonology, Institute of Pulmocare and Research, Kolkata, India,
| | | | | | - Madan Sarma
- Department of Pulmonology, Institute of Pulmocare and Research, Kolkata, India,
| | - Saibal Mazumdar
- Department of General Medicine, Liver Foundation, Kolkata, India
| | - Kajal Chatterjee
- Department of General Medicine, Liver Foundation, Kolkata, India
| | | |
Collapse
|
48
|
Chaudhury K, Choudhury P, Ghosh N, Joshi M, Bhattacharyya P. NMR serum metabolomics for understanding the pathophysiology of COPD associated PH: A pilot study. Pulmonary hypertension 2018. [DOI: 10.1183/13993003.congress-2018.pa3923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
|
49
|
Ghosh N, Rathnakaram SR, Kaushik SR, Arya R, Nanda R, Bhattacharyya P, Roy Chowdhury S, Banerjee R, Chaudhury K. GC MS based untargeted metabolomics for understanding the pathophysiology of asthma COPD overlap (ACO). Clinical Problems 2018. [DOI: 10.1183/13993003.congress-2018.pa5471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
|
50
|
Islam MA, Bandyopadhyaya I, Bhattacharyya P, Saha G. Multichannel lung sound analysis for asthma detection. Comput Methods Programs Biomed 2018; 159:111-123. [PMID: 29650306 DOI: 10.1016/j.cmpb.2018.03.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 02/25/2018] [Accepted: 03/09/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND AND OBJECTIVE Lung sound signals convey valuable information of the lung status. Auscultation is an effective technique to appreciate the condition of the respiratory system using lung sound signals. The prior works on asthma detection from lung sound signals rely on the presence of wheeze. In this paper, we have classified normal and asthmatic subjects using advanced signal processing of posterior lung sound signals, even in the absence of wheeze. METHODS We collected lung sounds of 60 subjects (30 normal and 30 asthma) using a novel 4-channel data acquisition system from four different positions over the posterior chest, as suggested by the pulmonologist. A spectral subband based feature extraction scheme is proposed that works with artificial neural network (ANN) and support vector machine (SVM) classifiers for the multichannel signal. The power spectral density (PSD) is estimated from extracted lung sound cycle using Welch's method, which then decomposed into uniform subbands. A set of statistical features is computed from each subband and applied to ANN and SVM classifiers to classify normal and asthmatic subjects. RESULTS In the first part of this study, the performances of each individual channel and four channels together are evaluated where the combined channel performance is found superior to that of individual channels. Next, the performances of all possible combinations of the channels are investigated and the best classification accuracies of 89.2( ± 3.87)% and 93.3( ± 3.10)% are achieved for 2-channel and 3-channel combinations in ANN and SVM classifiers, respectively. CONCLUSIONS The proposed multichannel asthma detection method where the presence of wheeze in lung sound is not a necessary requirement, outperforms commonly used lung sound classification methods in this field and provides significant relative improvement. The channel combination study gives insight into the contribution of respective lung sound collection areas and their combinations in asthma detection.
Collapse
Affiliation(s)
- Md Ariful Islam
- Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.
| | - Irin Bandyopadhyaya
- Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.
| | | | - Goutam Saha
- Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, Kharagpur 721302, India.
| |
Collapse
|