67 results on '"Chhabra M"'
Search Results
2. Microalgae cultivation in bio-electrochemical systems
- Author
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Mishra, A., primary and Chhabra, M., additional
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- 2023
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3. Varietal Break Down to Red Rot in the Sugarcane Variety Co 0238 Mimics Vertifolia Effect: Characterizing New Colletotrichum falcatum Pathotype CF13
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Viswanathan, R., Singh, Sujeet Pratap, Selvakumar, R., Singh, Dinesh, Bharti, Y. P., Chhabra, M. L., Parameswari, B., Sharma, Anuradha, and Minnatullah, Md.
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- 2022
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4. ICT diffusion, energy consumption, institutional quality, and environmental sustainability in 20 emerging economies during 2005–2019
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Verma, A., primary, Chhabra, M., additional, and Giri, A. K., additional
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- 2023
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5. Suitability of clayey soils from Jalore and Jodhpur, Rajasthan, India for the production of 3-Litre ceramic water filters.
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Duhan, S., Adari, S. K., Kanwar, N., Gupta, S., Nighojkar, A. K., Ahmad, M., Dammala, P. K., Chhabra, M., and Plappally, A. K.
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CLAY soils ,WATER filters ,ESCHERICHIA coli ,SCANNING electron microscopy - Abstract
Clayey soils in Raithal, Jalore, Rajasthan, India, have been used for local manufacturing of clay ceramic water filters by potter communities. Potters are trying clayey soils from different locations across India to produce these filters. The suitability of clayey soils from Jheepasani, Jodhpur, and Gajsinghpura, Jodhpur, Rajasthan, India, to manufacture these water filters is compared with soils from Raithal, Jalore, Rajasthan, India. The shrinkage limit and maximum dry density were the lowest for Jheepasani soils. Jheepasani soils have quartz in large quantities, while Gajsinghpura soils are characterized by zeolite. Scanning electron microscopy revealed dense, flaky structure of Gajsinghpura soils and a loosely packed matrix in Jheepasani soils. The micrograph of soils depicts the presence of crystalline character in constituents of Raithal and Gajsinghpura soils. A 3L frustum-shaped composite is made by mixing an equal amount of each of the three soils listed above (taken on their own) with an equal amount of burnout material. The mixture is then pressed into the shape. These press-formed frustums were traditionally baked at 750°C in a potter's open-hearth kiln at Banad village, Jodhpur, Rajasthan, India, to get the new 3L ceramic water filters. A maximum percolation rate of 1.8 L/h was observed from filters manufactured using Jheepasani soils. The samples extracted from the walls of Gajsinghpura soil-based ceramic water filters were comparatively more substantial than those manufactured from the soils of Raithal and Jheepasani. The effectiveness of these 3L filters was tested using Escherichia coli as a surrogate for other waterborne pathogens. E. coli removal with a log reduction value of 2.62 was showcased by Raithal soil-based ceramic water filters. On the basis of this result, Raithal soil-based ceramic water filters were found to be functionally better among the three ceramic water filter variants manufactured from clayey soils found near the Thar Desert in India. [ABSTRACT FROM AUTHOR]
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- 2023
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6. Phenotypic characterization of new sugarcane varieties using DUS descriptors
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Meena, Dr M R, primary, Meena, M R, additional, Kumar, Ravinder, additional, Kulshreshtha, N, additional, Chhabra, M L, additional, and Hemaprabha, G, additional
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- 2023
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7. Sustainable Entrepreneurship Impact and Entrepreneurial Venture Life Cycle: A Systematic Literature Review
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Di Vaio, A, Hassan, R, Chhabra, M, Arrigo, E, Palladino, R, Di Vaio, Assunta, Hassan, Rohail, Chhabra, Meghna, Arrigo, Elisa, Palladino, Rosa, Di Vaio, A, Hassan, R, Chhabra, M, Arrigo, E, Palladino, R, Di Vaio, Assunta, Hassan, Rohail, Chhabra, Meghna, Arrigo, Elisa, and Palladino, Rosa
- Abstract
This study analyses the sustainable entrepreneurship issues faced during the pre-seed and seed phases of the life cycle of entrepreneurial ventures, which are considered the protagonists of innovative changes towards a cleaner environment. Specifically, it investigates the role innovation plays in the life cycle of entrepreneurial ventures seeking to create sustainable business models and tools for measuring the social impact of such ventures in sustainability assessment systems designed to help achieve the Sustainable Development Goals (SDGs) adopted by the UN 2030 Agenda. The study conducts a rigorous literature review and bibliometric analysis of 166 English-language articles on entrepreneurship and sustainability published between 2001 and 2021, and formulates a map for the knowledge produced and disseminated in previous investigations. The results advance our understanding of how sustainability assessment can be integrated into the life cycle phases of innovative entrepreneurial ventures. This review can aid in the development of a comprehensive framework and of research propositions for sustainable entrepreneurship issues in the pre-seed and seed phases. The study also extends institutional and stakeholder theories to provide decision support for sustainable entrepreneurial ventures in their pre-seed and seed phases. It explains how stakeholders' participation and engagement with institutional structures can be invigorated and how this affects the decision consequences for sustainable entrepreneurs. Our results can help practitioners and researchers accurately interpret ‘innovation’ in the life cycle of entrepreneurial ventures and sustainability assessment systems, thus allowing them to formulate policies, strategies, and guidelines for promoting a sustainable development agenda.
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- 2022
8. The Predictive Power of Macroeconomic Variables on the Indian Stock Market Utilizing an Ann Model Approach: An Empirical Investigation Based on BSE Sensex
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Goel Himanshu, Agarwal Monika, Chhabra Meghna, and Som Bhupender Kumar
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foreign exchange ,index of industrial production ,bse sensex ,macroeconomic variables ,prediction ,g170 ,Finance ,HG1-9999 ,Economic theory. Demography ,HB1-3840 - Abstract
The paper focuses on the use of Artificial Neural Networks (ANNs) for forecasting time series data of the stock market since ANNs are dynamic and are more capable of handling complex data sets in comparison to conventional forecasting techniques such as regression, Logistic regression, and have massive potential for the prediction of stock market prices.
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- 2023
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9. Genetic variability for fodder quality traits among high biomass energy cane feedstock under rainfed conditions.
- Author
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Meena, M. R., Govindaraj, P., Kumar, Rajesh, Kumar, R. Arun, Kumar, Ravinder, Chhabra, M. L., Pandey, S. K., and Hemaprabha, G.
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SUGARCANE industry ,SUGARCANE growing ,CROP development ,ANIMAL feeds ,FODDER crops - Abstract
Eighteen energy canes (Types I and II) were evaluated along with two popular varieties Co 0238 and CoS 767 under rainfed conditions of sub-tropical climate for their potential as fodder crop. The analysis of fodder quality parameters at the 10 month crop stage included crude protein content, dry matter intake (DMI), dry matter digestibility %, total digestible nutrients %, net energy of lactation, and digestible fibre and energy. Sugarcane tops of type-I and type-II energy canes had similar crude protein percentages (5.95 % and 6.61 %). Energy canes; SBIEC 14002, SBIEC 11009, SBIEC 11003, SBIEC 13009, and SBIEC 11006 recorded dry matter intake % of 1.76%, 1.76%, 1.73% and 1.72%, 1.70% respectively, which was on par with sugarcane (1.71%). The digestible nutrient of SBIEC 11001 (49.43%) was higher than that of cultivated canes, whereas that of SBIEC 11009 (48.08%), SBIEC 11005 (48.64%) and SBIEC 14003 (48.50%) was similar to that of cultivated canes. The correlation coefficient between desirable fodder traits was calculated. A highly positive correlation (r=1.0) was observed among the five desirable traits, such as net available energy, metabolisable energy, dry matter digestibility, total digestible nutrient, and digestible energy, indicated there desirability for fodder value. Based on their traits, two-way cluster analysis separated Type-I and Type-II energy clones into two major groups. According to all parameters considered, energycane tops had acceptable fodder quality and were on par with cultivated sugarcane varieties. [ABSTRACT FROM AUTHOR]
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- 2022
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10. A Lab Prototype for Rapid Electrochemical Detection of Escherichia coli in Water Using Modified Screen-Printed Electrodes.
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Chalka VK, Mishra A, Chhabra M, Rangra K, and Dhanekar S
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- Oxides chemistry, Materials Testing, Manganese Compounds chemistry, Titanium chemistry, Biocompatible Materials chemistry, Particle Size, Hydrogen Peroxide analysis, Hydrogen Peroxide chemistry, Nanostructures chemistry, Escherichia coli isolation & purification, Electrodes, Electrochemical Techniques instrumentation, Water Microbiology
- Abstract
Recognizing the need for a hand-held device capable of quantitatively measuring the concentration of bacteria in water, this paper describes a label-free method for rapid detection of Escherichia coli ( E. coli ) in water via H
2 O2 decomposition using screen-printed electrodes (SPE) modified with nanostructured metal oxide layers. The study encompasses sensor preparation, bacteria culture, synthesis and characterization of nanostructures, and development of a readout circuitry for lab prototyping. During sensing measurements, the bacteria are first made to interact with H2 O2 and subsequently, the H2 O2 solution is exposed on the sensing surface. The electrochemical sensors are fabricated by modifying the working electrode of SPE with nanostructured metal oxide layers of MnO2 and TiO2 as these play a crucial role in the detection of E. coli in water. The sensing experiments of MnO2 -modified SPE show a significant response to bacteria with a sensitivity of 0.82 mV.mL/log CFU and a limit of detection (LOD) of 1.8 CFU/mL, while the TiO2 -modified SPE exhibits a linear response over a wide range of bacterial concentrations with a sensitivity of 1.12 mV·mL/log CFU and a limit of detection of 2.23 CFU/mL. Both sensors demonstrate a rapid response, stability, repeatability, and a recovery time of 70 ms. Additionally, selectivity with respect to other bacteria, wastewater components such as glucose, ammonium sulfate, and sodium carbonate, and testing with RO, DI, and tap water samples are conducted to evaluate the sensors' performance. A detailed sensing mechanism has been developed to comprehend the results, including chemical and biological reactions, metal oxide interfaces, morphology, and other surface studies of the sensing surface. A prototype comprising a sensor chip, an Arduino board, and other necessary circuit components is tested with various bacterial solutions. This enables its use for on-field rapid detection of bacteria in water using smaller volumes and a portable system.- Published
- 2024
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11. Cannabinoids Used for Medical Purposes in Children and Adolescents: A Systematic Review and Meta-Analysis.
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Chhabra M, Ben-Eltriki M, Mansell H, Lê ML, Huntsman RJ, Finkelstein Y, and Kelly LE
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- Adolescent, Child, Humans, Cannabinoids adverse effects, Cannabinoids therapeutic use, Medical Marijuana therapeutic use, Medical Marijuana adverse effects
- Abstract
Importance: Cannabinoids are increasingly used for medical purposes in children. Evidence of the safety of cannabinoids in this context is sparse, creating a need for reliable information to close this knowledge gap., Objective: To study the adverse event profile of cannabinoids used for medical purposes in children and adolescents., Data Sources: For this systematic review and meta-analysis, MEDLINE, Embase, PsycINFO, and the Cochrane Library were searched for randomized clinical trials published from database inception to March 1, 2024, for subject terms and keywords focused on cannabis and children and adolescents. Search results were restricted to human studies in French or English., Study Selection: Two reviewers independently performed the title, abstract, and full-text review, data extraction, and quality assessment. Included studies enrolled at least 1 individual 18 years or younger, had a natural or pharmaceutical cannabinoid used as an intervention to manage any medical condition, and had an active comparator or placebo., Data Extraction and Synthesis: Two reviewers performed data extraction and quality assessment independently. The Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guideline and PRISMA-S guideline were used. Data were pooled using a random-effects model., Main Outcomes and Measures: The primary outcome was the incidence of withdrawals, withdrawals due to adverse events, overall adverse events, and serious adverse events in the cannabinoid and control arms. Secondary outcomes were the incidence of specific serious adverse events and adverse events based on organ system involvement., Results: Of 39 175 citations, 23 RCTs with 3612 participants were included (635 [17.6%] female and 2071 [57.3%] male; data not available from 2 trials); 11 trials (47.8%) included children and adolescents only, and the other 12 trials (52.2%) included children, adolescents, and adults. Interventions included purified cannabidiol (11 [47.8%]), nabilone (4 [17.4%]), tetrahydrocannabinol (3 [13.0%]), cannabis herbal extract (3 [13.0%]), and dexanabinol (2 [8.7%]). The most common indications were epilepsy (9 [39.1%]) and chemotherapy-induced nausea and vomiting (7 [30.4%]). Compared with the control, cannabinoids were associated with an overall increased risk of adverse events (risk ratio [RR], 1.09; 95% CI, 1.02-1.16; I2 = 54%; 12 trials), withdrawals due to adverse events (RR, 3.07; 95% CI, 1.73-5.43; I2 = 0%; 14 trials), and serious adverse events (RR, 1.81; 95% CI, 1.21-2.71; I2 = 59%; 11 trials). Cannabinoid-associated adverse events with higher RRs were diarrhea (RR, 1.82; 95% CI, 1.30-2.54; I2 = 35%; 10 trials), increased serum levels of aspartate aminotransferase (RR, 5.69; 95% CI, 1.74-18.64; I2 = 0%; 5 trials) and alanine aminotransferase (RR, 5.67; 95% CI, 2.23-14.39; I2 = 0%; 6 trials), and somnolence (RR, 2.28; 95% CI, 1.83-2.85; I2 = 8%; 14 trials)., Conclusions and Relevance: In this systematic review and meta-analysis, cannabinoids used for medical purposes in children and adolescents in RCTs were associated with an increased risk of adverse events. The findings suggest that long-term safety studies, including those exploring cannabinoid-related drug interactions and tools that improve adverse event reporting, are needed.
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- 2024
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12. Co-culturing Chlorella vulgaris and Cystobasidium oligophagum JRC1 in the microbial fuel cell cathode for lipid biosynthesis.
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Mishra A and Chhabra M
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- Lipids biosynthesis, Coculture Techniques, Biomass, Chlorella vulgaris metabolism, Bioelectric Energy Sources, Electrodes
- Abstract
This study investigated the effect of co-culturing the photobiont and mycobiont in the microbial fuel cell (MFC) cathode on biomass production, lipid generation, and power output. Chlorella vulgaris provides oxygen and nutrients for the yeast Cystobasidium oligophagum JRC1, while the latter offers CO
2 and quench oxygen for higher algal growth. The MFC with co-culture enhanced the lipid output of biomass by 28.33%, and the total yield and productivity were 1.47 ± 0.18 g/l and 0.123 g/l/day, respectively. Moreover, with co-culture, the open circuit voltage of 685 ± 11 mV was two times higher than algae alone. The specific growth rate (day-1 ) at the cathode was 0.367 ± 0.04 in co-culture and 0.288 ± 0.05 with C. vulgaris only. The power density of the system was 5.37 ± 0.21 mW/m2 with 75.88 ± 1.89% of COD removal. The co-culture thus proved beneficial at the MFC cathode in terms of total energy output as 11.5 ± 0.035 kWh/m3 , which was 1.4-fold higher than algae alone., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2024
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13. A multi-centre, tolerability study of a cannabidiol-enriched Cannabis Herbal Extract for chronic headaches in adolescents: The CAN-CHA protocol.
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Chhabra M, Lewis EC, Balshaw R, Stewart B, Zaslawski Z, Lowthian T, Alidina Z, Chesick-Gordis M, Xie W, Drögemöller BI, Wright GEB, Birnie KA, Boerner KE, Tsang VWL, Irwin SL, Pohl D, Weil AG, Sell E, Penz E, Robson-MacKay A, Mbabaali S, Blackman S, Gordon S, Alcorn J, Huntsman RJ, Oberlander TF, Finley GA, and Kelly LE
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- Humans, Adolescent, Male, Female, Cannabis chemistry, Canada, Headache Disorders drug therapy, Migraine Disorders drug therapy, Cannabidiol adverse effects, Cannabidiol administration & dosage, Cannabidiol therapeutic use, Plant Extracts therapeutic use, Plant Extracts adverse effects, Plant Extracts administration & dosage
- Abstract
Introduction: Cannabis products have been used in the management of headaches in adults and may play a role in pediatric chronic pain. Canadian pediatricians report increasing use of cannabis for the management of chronic headaches, despite no well-controlled studies to inform its dosing, safety, and effectiveness. The aim of our clinical trial is to determine the dosing and safety of a Cannabidiol (CBD)-enriched Cannabis Herbal Extract (CHE) for the treatment of chronic headaches in adolescents., Methods and Analysis: Youth, parents, and an expert steering committee co-designed this tolerability study. Twenty adolescents (aged 14 to 17 years), with a chronic migraine diagnosis for more than 6 months that has not responded to other therapies will be enrolled into an open label, dose escalation study across three Canadian sites. Study participants will receive escalating doses of a CBD-enriched CHE (MPL-001 with a THC:CBD of 1:25), starting at 0.2-0.4 mg/kg of CBD per day and escalating monthly up to 0.8-1.0 mg/kg of CBD per day. The primary objective of this study is to determine the safety and tolerability of CBD-enriched CHE in adolescents with chronic migraine. Secondary objectives of this study will inform the development of subsequent randomized controlled trials and include investigating the relationship between the dose escalation and change in the frequency of headache, impact and intensity of pain, changes in sleep, mood, function, and quality of life. Exploratory outcomes include investigating steady-state trough plasma levels of bioactive cannabinoids and investigating how pharmacogenetic profiles affect cannabinoid metabolism among adolescents receiving CBD-enriched CHE., Discussion: This protocol was co-designed with youth and describes a tolerability clinical trial of CBD-enriched CHE in adolescents with chronic headaches that have not responded to conventional therapies. This study is the first clinical trial on cannabis products in adolescents with chronic headaches and will inform the development of future comparative effectiveness clinical trials., Trial Registration: CAN-CHA trial is registered with ClinicalTrials.gov with a number of register NCT05337033., Competing Interests: Lauren E Kelly is the Scientific Director for The Canadian Collaborative for Childhood Cannabinoid Therapeutics (C4T) academic research team. She holds funding from the Canadian Institutes of Health Research, Canadian Cancer Society, Research Manitoba, the Sick Kids Foundation, the Children’s Hospital Research Institute of Manitoba, the University of Manitoba and a Mitacs Accelerate award in partnership with Canopy Growth. Dr. Kelly was a member of the Scientific Advisory Board for Health Products Containing Cannabis at Health Canada and is president elect for the Board of Directors of the Canadian Consortium for the Investigation of Cannabinoids (CCIC). Richard J. Huntsmanis a clinical lead for both the Cannabinoid Research Initiative of Saskatchewan and C4T. He was the co-chair of the Scientific Advisory Committee for Health Products Containing Cannabis at Health Canada. Katelynn E Boerner’s time is supported by a fellowship from the Canadian Child Health Clinician Scientist Program, and she currently holds unrelated funding from the Society of Pediatric Psychology, BC Children’s Hospital Research Institute, Canadian Institutes of Health Research, ZonMw: The Netherlands Organization for Health Research and Development, and the CHILD-BRIGHT Network. Evan C. Lewis has received speaking honoraria from Spectrum Therapeutics, Biome Grow, MedReleaf and Miravo Healthcare. He holds a non-salaried position as the Chief Medical Advisor for the JMCC Group. He was the Vice President of Neurology Services for Numinus, a psychedelic medicine treatment and research company. He is a member of the Expert Committee of the Medical Cannabis Clinicians Society (MCCS) in the United Kingdom and sits on the Advisory Councils for Cannabis Patient Advocacy & Support Services (CPASS) and MedCan. In the last 12 months, Samantha Lee Irwin has received honoraria for authoring a chapter for the Canadian Pharmacy Association (CPhA) and for doing an online lecture for NeuroDiem. She also receives compensation for scientific consulting (Impel NeuroPharma Inc, Biohaven Pharmaceuticals and Lundbeck A/S) and has had research support from the Duke Clinical Research Institute. Manik Chhabra has been granted the 2022 Research Manitoba-George & Fay Yee Centre for Healthcare Innovation in Health Research PhD Studentship Award. There are no patents, products in development or marketed products associated with this research to declare. This does not alter our adherence to PLOS ONE policies on sharing data and materials., (Copyright: © 2024 Chhabra et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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14. Ventricular Tachyarrhythmia in a Newborn Baby.
- Author
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Maclennan APH, Sitner-Medvedovsky E, Varon D, Parikh A, Shah A, and Chhabra M
- Abstract
Supraventricular tachycardia (SVT) is a narrow QRS complex tachyarrhythmia with a heart rate above 220 beats per minute in infants and children. Ventricular tachycardia can be due to electrolyte abnormalities, cardiomyopathies, congenital heart disease, myocarditis or drug toxicity. Incidence has been estimated to be 1 in 250 to 1 in 1000 with spontaneous resolution in infants by one year of life. We present a full-term neonate who started experiencing a tachyarrhythmia on day zero of life until she reverted to sinus rhythm on day nine of life. The rhythm was most likely a ventricular tachyarrhythmia rather than supraventricular tachycardia due to its unresponsiveness to adenosine, wide QRS complexes, and lack of association with hemodynamic instability. This is a unique case presentation of a ventricular tachyarrhythmia for its diagnostic and therapeutic challenges, it's idiopathic nature and lack of association with any cardiac compromise, congenital heart disease or electrolyte imbalance., Competing Interests: There are no conflict of interests to disclose., (© The Author(s) 2024. Published by Oxford University Press.)
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- 2024
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15. Effect of radiofrequency ablation of genicular nerves on the isokinetic muscle strength of knee joint in patients with osteoarthritis knee: A randomized double-blind sham controlled clinical trial.
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Makkar JK Dr, Warrier G Dr, Ghai B Dr, Chhabra M, Sarkar PK Dr, Goni VG, and Kaur Khurana BJ
- Abstract
Background: This randomised controlled trial evaluated the effect of radiofrequency ablation (RFA) of genicular nerve on muscle strength in osteoarthritis knee patients with chronic pain., Methodology: Fifty-four patients with chronic knee osteoarthritis, experiencing significant pain (VNRS > 50) and moderate to severe disease (KL grade ≥ 2) were enrolled. Group 1 received RFA of genicular nerves of the affected knee while Group 2 received a sham procedure. The primary outcome was change in knee muscle strength evaluated using isokinetic peak torque(IPT) using IsoforceTM isokinetic dynamometer at 3 months. Secondary outcomes included changes in pain scores, function, perceived effect of the treatment and compliance to physiotherapy., Results: At 3 months, significant difference was observed between IPT of flexor muscle at 60 and 180 degrees between the treatment and the Sham control (p-value = 0.01). No significant difference was observed in the extensor muscle strength. Within-group analysis revealed a significant increase in the IPT values for both extension and flexion at 60 and 180 degrees/sec evident across various time intervals. Group1 consistently reported lower VNRS scores at all time points. WOMAC scores of both groups were significantly different at all timepoints, with higher scores indicating reduced functionality in Group2. The GPE and compliance to physiotherapy were higher in Group1 patients at all times of follow up albeit decreasing trend in later periods., Conclusion: Application of RFA to genicular nerves in chronic OA knee patients resulted in better pain relief, improved functionality and increased muscle strength at extension and flexion at 3 months follow-up., (© The Author(s) 2024. Published by Oxford University Press on behalf of the American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
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- 2024
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16. Amphiphilic Heparinoids as Potent Antiviral Agents against SARS-CoV-2.
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Chhabra M, Shanthamurthy CD, Kumar NV, Mardhekar S, Vishweshwara SS, Wimmer N, Modhiran N, Watterson D, Amarilla AA, Cha JS, Beckett JR, De Voss JJ, Kayal Y, Vlodavsky I, Dorsett LR, Smith RAA, Gandhi NS, Kikkeri R, and Ferro V
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- Humans, Oligosaccharides pharmacology, Oligosaccharides chemical synthesis, Oligosaccharides chemistry, COVID-19 Drug Treatment, Animals, Vero Cells, Chlorocebus aethiops, Structure-Activity Relationship, COVID-19 virology, Glucuronidase, Saponins, Antiviral Agents pharmacology, Antiviral Agents chemistry, Antiviral Agents chemical synthesis, SARS-CoV-2 drug effects
- Abstract
Herein, we report the synthesis and biological evaluation of a novel series of heparinoid amphiphiles as inhibitors of heparanase and SARS-CoV-2. By employing a tailor-made synthetic strategy, a library of highly sulfated homo-oligosaccharides bearing d-glucose or a C5-epimer (i.e., l-idose or l-iduronic acid) conjugated with various lipophilic groups was synthesized and investigated for antiviral activity. Sulfated higher oligosaccharides of d-glucose or l-idose with lipophilic aglycones displayed potent anti-SARS-CoV-2 and antiheparanse activity, similar to or better than pixatimod (PG545), and were more potent than their isosteric l-iduronic acid congeners. Lipophilic groups such as cholestanol and C
18 -aliphatic substitution are more advantageous than functional group appended lipophilic moieties. These findings confirm that fine-tuning of higher oligosaccharides, degree of sulfation, and lipophilic groups can yield compounds with potent anti-SARS-CoV-2 activity.- Published
- 2024
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17. Agreement of Gallbladder Reporting and Data System for Gallbladder Wall Thickening at Ultrasonography: A Multireader Validation Study.
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Soundararajan R, Subramanian P, Gupta P, Rana P, Chhabra M, Singh S, Siddiqui R, Das C, Yadav TD, Gupta V, Kaman L, Singh H, Irrinki S, Gupta P, Saikia UN, Nada R, Dutta U, and Sandhu MS
- Abstract
Objective: This article aims to evaluate the intrareader and interreader agreement of ultrasound (US) gallbladder reporting and data system (GB-RADS) and validate the risk of malignancy in each GB-RADS category., Materials and Methods: This retrospective study comprised consecutive patients with nonacute gallbladder wall thickening who underwent US evaluation between January 2019 and December 2022. Three radiologists independently read the static US images and cine-loops for GB-RADS findings and assigned GB-RADS categories. The intraobserver (static images) and interobserver (static images and cine-loops) agreement was calculated using kappa statistics and Krippendorff's alpha. Another radiologist assigned a consensus GB-RADS category. The percentage of malignancy in each GB-RADS category was calculated., Results: Static US images of 414 patients (median age, 56 years; 288 women, benign = 45.6% and malignant = 54.4%) and cine-loops of 50 patients were read. There was weak to moderate intrareader agreement for most GB-RADS findings and moderate intrareader agreement for the GB-RADS category for all readers. On static images, the interreader agreement was acceptable for GB-RADS categories. On cine-loops, the interreader agreement for GB-RADS findings and categories was better than static images. The percentage of malignancy was 1.2%, 37%, 71.1%, and 89.1% in GB-RADS 2, 3, 4, and 5 categories., Conclusion: GB-RADS has moderate intrareader for GB-RADS categories. As originally proposed, the risk of malignancy is negligible in GB-RADS 2 category and highest in GB-RADS 5 category. However, the discriminatory performance of GB-RADS 3 and 4 categories is low. Larger multicenter studies with more readers must assess the reader agreement and validate the GB-RADS systems for wider clinical utilization., (© 2024 Indian National Association for Study of the Liver. Published by Elsevier B.V. All rights reserved.)
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- 2024
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18. Approach to fever in children.
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Jayashree M, Parameswaran N, Nallasamy K, Chidambaram AC, Rajasegar R, Dhodapkar R, Chhabra M, Gupta N, Kaur H, Velayudhan A, Deol S, Lodha R, Vasanthapuram R, Verghese VP, and Rose W
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- Humans, Child, India epidemiology, Child, Preschool, Infant, Fever of Unknown Origin etiology, Fever of Unknown Origin diagnosis, Fever diagnosis, Fever etiology
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Background: Fever in children is one of the most common reasons for outpatient visits as well as in-patient evaluation, often causing anxiety among parents and caregivers. Fever can be a standalone feature or be associated with other localising symptoms and signs like rash, lymphadenopathy, or any other organ system involvement with or without a focus of infection. The etiologies of fever vary depending on the clinical setting and epidemiology. India being a tropical country, sees a distinct spectrum of tropical infections. Physicians need to stay updated on the prevalent diseases in their region and the unique factors that may influence the clinical presentations and course of fever in the cohort of children they manage. The challenge lies in balancing the benefit of early treatment for severe diseases versus the harms of unnecessary investigations and treatment for self-resolving illnesses., Objectives: This review aims to provide a comprehensive overview of fever in children, covering its etiology, clinical features, and management strategies. This review offers an algorithmic approach to fever tailored to the Indian setting to guide physicians in identifying the disease based on clinical symptoms and signs, ordering essential laboratory investigations, and initiating appropriate management promptly., Content: The review categorises fever into various segments like fever with localising signs like rash, lymphadenopathy, fever due to infection localised to a particular organ system, and fever without a focus including fever of unknown origin. It delves into the diverse etiological factors contributing to fever in each of these categories, encompassing infectious and non-infectious origins. It gives pointers to identify the etiology from history, examination, and confirm them with judicious use of diagnostic investigations with emphasis on identifying the red flag signs that require immediate attention, especially in vulnerable groups like neonates and young infants., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Indian Association of Medical Microbiologists. Published by Elsevier B.V. All rights reserved.)
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- 2024
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19. Accuracy of Pediatric Interventricular Septal Thickness Measurement Obtained Via Point-of-Care Ultrasound: A Prospective Study.
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Hasan A, Dahan N, Ayeni A, Chhabra M, and McGrory P
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- Humans, Prospective Studies, Male, Female, Child, Adolescent, Ventricular Septum diagnostic imaging, Child, Preschool, Infant, Point-of-Care Systems, Cardiomyopathy, Hypertrophic diagnostic imaging, Echocardiography methods, Emergency Service, Hospital
- Abstract
Background: Hypertrophic cardiomyopathy is a genetic, life-threatening cardiovascular disease that often goes unidentified in pediatric patients. Patients are often asymptomatic and neither history or physical examination are reliable to detect the disease. The only reliable method to diagnose hypertrophic cardiomyopathy is with echocardiography to look at interventricular septal thickness. Emerging literature has shown that cardiac point-of-care ultrasound (POCUS) performed by pediatric emergency medicine (PEM) physicians is as effective and accurate compared with cardiac echocardiography performed by pediatric cardiologists., Objective: The objective of the study was to determine the diagnostic accuracy of POCUS performed by ultrasound-trained PEM physicians in measuring the interventricular septum end diastole (IVSd) thickness in the pediatric emergency department., Methods: We conducted a prospective, single-center, observational, diagnostic accuracy study to examine the diagnostic accuracy of POCUS in measuring IVSd thickness in pediatric patients who presented to the pediatric emergency department with symptoms that prompted a cardiac POCUS. Cardiac POCUS findings were interpreted by a PEM physician at the bedside and retrospectively by a pediatric cardiologist. Diagnostic concordance of the measurements obtained by the PEM physician and cardiologist was assessed., Results: Forty-eight patients were enrolled. Median patient age was 13.4 years. There was excellent diagnostic agreement on the measurement of the IVSd thickness between PEM physicians and the pediatric cardiologist (81.25% of cases; 39/48). Disagreement was seen in 18.75% of the cases (9/48). The mean error of disagreement was -0.32, with a 95% confidence interval of -0.37 to -0.28. Overall, the mean error of both agreement and disagreement was -0.046, with 95% confidence interval of -0.08 to -0.01 and P value of 0.008., Conclusions: Point-of-care ultrasound performed by ultrasound-trained PEM physicians to measure pediatric IVSd thickness has a high diagnostic accuracy with excellent agreement with a pediatric cardiologist., Competing Interests: Disclosure: The authors declare no conflict of interest., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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20. Use of Potentially Inappropriate Medications among Older Adults with Dementia or Cognitive Impairment Attending Memory Clinics: A Protocol for a Systematic Review and Meta-Analysis.
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Sharma R, Gill JK, Carter C, Alkabbani W, Chhabra M, Vidyasagar K, Chang F, Lee L, and Patel T
- Abstract
Introduction: Older adults with dementia who are on multiple medications are more vulnerable to the use of potentially inappropriate medications (PIMs), which can significantly increase the risk of adverse events and drug-related problems. PIMs use is prevalent and varies among older adults with dementia or cognitive impairment (CI) attending memory clinics. However, the prevalence of PIMs, polypharmacy, and hyper-polypharmacy among older adults with dementia or CI who are attending memory clinics is not well understood. We will conduct a systematic review and meta-analyses to examine the overall estimate of the prevalence of the PIMs, polypharmacy, and hyper-polypharmacy use among older adults attending memory clinics, with dementia or CI. The secondary objective of this study will be to compile a list of commonly implicated PIMs and to investigate factors that may be associated with using PIMs in this population., Methods: Ovid MEDLINE, Ovid Embase, Scopus, Cochrane library, EBSCOhost CINAHL, and Ovid International Pharmaceutical Abstracts (IPA) will be systematically searched by a researcher (R.S.) with the help of a librarian (C.C.). All databases will be searched from inception to May 05, 2023. Cross-sectional, cohort, randomized clinical trials, quasi-experimental, and case-control studies will be included if they assess PIM's use among older adults with dementia and/or CI. A step-by-step guide by Pai et al. [Natl Med J India. 2004;17(2):86-95] will be followed when conducting this systematic review (S.R.). The PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) checklist will be followed for reporting this SR., Conclusion: The findings from this SR/MA will identify the pooled prevalence of PIMs, providing a more precise estimate of the true prevalence of the PIMs, polypharmacy, hyper-polypharmacy in older adults with dementia or CI who are attending memory clinics at primary, secondary, or tertiary healthcare settings by considering the results of multiple studies., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© 2024 The Author(s). Published by S. Karger AG, Basel.)
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- 2024
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21. Successful use of empagliflozin in medically refractory post-bariatric surgery hypoglycaemia.
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Park YA, Chhabra M, and Sim IW
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- Humans, Diabetes Mellitus, Type 2 drug therapy, Postoperative Complications drug therapy, Sodium-Glucose Transporter 2 Inhibitors therapeutic use, Treatment Outcome, Bariatric Surgery adverse effects, Benzhydryl Compounds therapeutic use, Glucosides therapeutic use, Hypoglycemia drug therapy, Hypoglycemia chemically induced
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- 2024
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22. Vitamin D in Melanoma: Potential Role of Cytochrome P450 Enzymes.
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Ben-Eltriki M, Gayle EJ, Paras JM, Nyame-Addo L, Chhabra M, and Deb S
- Abstract
Vitamin D is a promising anticancer agent for the prevention and treatment of several cancers, including melanoma. Low 25-hydroxyvitamin D levels, a routinely used marker for vitamin D, have been suggested as one of the factors in the development and progression of melanoma. The parent vitamin D needs activation by cytochrome P450 (CYP) enzymes to exert its actions via the vitamin D receptor (VDR). This review discusses the role of vitamin D in melanoma and how CYP-mediated metabolism can potentially affect the actions of vitamin D. Through interacting with the retinoid X receptor, VDR signaling leads to anti-inflammatory, antioxidative, and anticancer actions. Calcitriol, the dihydroxylated form of vitamin D
3 , is the most active and potent ligand of VDR. CYP27A1, CYP27B1, and CYP2R1 are involved in the activation of vitamin D, whereas CYP24A1 and CYP3A4 are responsible for the degradation of the active vitamin D. CYP24A1, the primary catabolic enzyme of calcitriol, is overexpressed in melanoma tissues and cells. Several drug classes and natural health products can modulate vitamin D-related CYP enzymes and eventually cause lower levels of vitamin D and its active metabolites in tissues. Although the role of vitamin D in the development of melanoma is yet to be fully elucidated, it has been proposed that melanoma prevention may be significantly aided by increased vitamin D signaling. Furthermore, selective targeting of the catabolic enzymes responsible for vitamin D degradation could be a plausible strategy in melanoma therapy. Vitamin D signaling can be improved by utilizing dietary supplements or by modulating CYP metabolism. A positive association exists between the intake of vitamin D supplements and improved prognosis for melanoma patients. Further investigation is required to determine the function of vitamin D supplementation and specific enzyme targeting in the prevention of melanoma.- Published
- 2024
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23. Impact of birth weight to placental weight ratio and other perinatal risk factors on left ventricular dimensions in newborns: a prospective cohort analysis.
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Gad A, Malouche D, Chhabra M, Hoang D, Suk D, Ron N, Dygulska B, Gudavalli MB, Nadroo AM, Narula P, and Elmakaty I
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- Humans, Female, Infant, Newborn, Pregnancy, Prospective Studies, Male, Risk Factors, Organ Size, Birth Weight physiology, Heart Ventricles diagnostic imaging, Placenta anatomy & histology, Placenta diagnostic imaging, Echocardiography methods
- Abstract
Objectives: To investigate the association between birth weight to placental weight (BW/PW) ratio, and echocardiographic left ventricle (LV) morphology at birth, while accounting for other relevant perinatal factors., Methods: A prospective cohort study was conducted on neonates at NewYork-Presbyterian Brooklyn Methodist Hospital from 2014 to 2018, categorized by their BW/PW percentile. Missing data were imputed with principal component analysis. Chi-squared and one-way analysis of variance were used to compare BW/PW groups and the best regression model was selected using a genetic and backward stepwise algorithm., Results: We analyzed 827 neonates in three BW/PW groups: small (n=16), normal (n=488), and large (n=323). Placental thickness and smallest diameter were positively correlated with several LV parameters, including inter-ventricular septal thickness during diastole (IVSd) (p=0.002, p<0.001) and systole (IVSs) (p=0.001, p<0.001), LV posterior wall thickness at end of diastole (LVPWd) (p=0.003, p<0.001) and systole (LVPWs) (p<0.001, p<0.001), LV mass (p=0.017, p<0.001), and LV mass/volume (p=0.011, p<0.001). The BW/PW ratio correlated with an increased shortening fraction (estimate=0.29, 95 % CI 0.03-0.55, p=0.027). PW correlated with IVSs (p=0.019), while the longest placental diameter was linked to a decrease in LV internal dimension during diastole (LVIDd) (estimate=-0.07, p=0.039), LV mass (estimate=-0.11, p=0.024), and LV mass/volume (estimate=-0.55, p=0.005)., Conclusions: This study found that several placental factors, including the BW/PW ratio, can independently affect LV dimension and morphology, highlighting the importance of fetal growth and placental health in the physiological adaptation of the fetal heart. More research is needed to establish causation and inform newborn prevention strategies., (© 2024 the author(s), published by De Gruyter, Berlin/Boston.)
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- 2024
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24. Proposal for a new morphological "combined type" of gallbladder cancer: description of radiopathological characteristics and comparison with other morphological types.
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Chhabra M, Kalage D, Gupta P, Siddiqui R, Singh S, Yadav TD, Gupta V, Kaman L, Singh H, Irrinki S, Das C, Prakash G, Gupta P, Saikia UN, Nada R, Dutta U, and Sandhu MS
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- Female, Humans, Middle Aged, Male, Retrospective Studies, Magnetic Resonance Imaging methods, Gallbladder Neoplasms diagnostic imaging, Liver Neoplasms
- Abstract
Objective: To describe the radiopathological characteristics of a new morphological "combined type" of gallbladder cancer (GBC) and compare it with the mass replacing gallbladder and thickening types of GBC., Materials and Methods: The imaging and pathological details of consecutive patients with GBC between August 2020 and December 2022 were retrospectively reviewed. Two radiologists reviewed computed tomography/magnetic resonance imaging in consensus for the morphological type of GBC. The radiologists classified GBC as mass replacing gallbladder, wall thickening, and combined type. The combined type was defined as a mass arising from the thickened wall of an adequately distended gallbladder that extended exophytically into the adjacent liver parenchyma. The presence of calculi, site, and size of lesion, biliary/portal vein involvement, liver, lymph node, and omental metastases was compared among the various types. The pathological characteristics were also compared., Results: Of the 481 patients (median age 55 years, 63.2% females) included in the study, mass replacing gallbladder, wall thickening, and combined-type GBC were seen in 42.8% (206/481), 40.5% (195/481), and 16.6% (80/481) of patients, respectively. In the combined type of GBC, biliary/portal vein involvement was seen in 63.7% (51/80) and 7.5% (6/80) of patients. Liver, lymph node, and omental metastases were seen in 67.5% (54/80), 40% (32/80), and 41.2% (33/80) patients, respectively. Liver metastases were significantly more common in the combined type (p = 0.002). There were no significant differences in pathological characteristics among the various types., Conclusion: Combined-type GBC is less common than the mass replacing gallbladder and thickening types and is associated with a higher risk of liver metastases., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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25. Approach towards surveillance-based diagnosis of acute respiratory illness in India: Expert recommendations.
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Manchanda V, Muralidharan J, Nischal N, Aggarwal K, Gupta S, Gupta N, Velayudhan A, Kaur H, Brijwal M, Chhabra M, Vishwanathan R, Dhodapkar R, Mahajan SK, Deol S, Sekhar JC, Mitra S, Saxena S, Kumar J, Garg A, Lodha R, Ravi V, Soneja M, Verghese VP, and Rodrigues C
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- Humans, India epidemiology, Algorithms, Epidemiological Monitoring, Communicable Diseases, Emerging diagnosis, Communicable Diseases, Emerging epidemiology, Respiratory Tract Infections diagnosis
- Abstract
Background: Emerging infectious diseases, often zoonotic, demand a collaborative "One-Health" surveillance approach due to human activities. The need for standardized diagnostic and surveillance algorithms is emphasized to address the difficulty in clinical differentiation and curb antimicrobial resistance., Objective: The present recommendations are comprehensive diagnostic and surveillance algorithm for ARIs, developed by the Indian Council of Medical Research (ICMR), which aims to enhance early detection and treatment with improved surveillance. This algorithm shall be serving as a blueprint for respiratory infections landscape in the country and early detection of surge of respiratory infections in the country., Content: The ICMR has risen up to the threat of emerging and re-emerging infections. Here, we seek to recommend a structured approach for diagnosing respiratory illnesses. The recommendations emphasize the significance of prioritizing respiratory pathogens based on factors such as the frequency of occurrence (seasonal or geographical), disease severity, ease of diagnosis and public health importance. The proposed surveillance-based diagnostic algorithm for ARI relies on a combination of gold-standard conventional methods, innovative serological and molecular techniques, as well as radiological approaches, which collectively contribute to the detection of various causative agents. The diagnostic part of the integrated algorithm can be dealt at the local microbiology laboratory of the healthcare facility with the few positive and negative specimens shipped to linked viral disease research laboratories (VRDLs) and other ICMR designated laboratories for genome characterisation, cluster identification and identification of novel agents., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Indian Association of Medical Microbiologists. Published by Elsevier B.V. All rights reserved.)
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- 2024
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26. Rapid measurement of bacterial contamination in water: A catalase responsive-electrochemical sensor.
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Sharma A, Mishra A, and Chhabra M
- Abstract
The present study describes the development of a potentiometric sensor for microbial monitoring in water based on catalase activity. The sensor comprises a MnO
2 -modified electrode that responds linearly to hydrogen peroxide (H2 O2 ) from 0.16 M to 3.26 M. The electrode potential drops when the H2 O2 solution is spiked with catalase or catalase-producing microorganisms that decompose H2 O2 . The sensor is responsive to different bacteria and their catalase activities. The electrochemical sensor exhibits a lower limit of detection (LOD) for Escherichia coli at 11 CFU/ml, Citrobacter youngae at 12 CFU/ml, and Pseudomonas aeruginosa at 23 CFU/ml. The sensor shows high sensitivity at 3.49, 3.02, and 4.24 mV/cm2 dec for E. coli , C. youngae , and P. aeruginosa, respectively. The abiotic sensing electrode can be used multiple times without changing the response potential (up to 100 readings) with a shelf-life of over six months. The response time is a few seconds, with a total test time of 5 min. Additionally, the sensor effectively tested actual samples (drinking and grey water), which makes it a quick and reliable sensing tool. Therefore, the study offers a promising water monitoring tool with high sensitivity, stability, good detection limit, and minimum interference from other water contaminants., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (© 2024 Published by Elsevier Ltd.)- Published
- 2024
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27. Imaging Diagnosis and Management of Fistulas in Pancreatitis.
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Chhabra M, Gupta P, Shah J, Samanta J, Mandavdhare H, Sharma V, Sinha SK, Dutta U, and Kochhar R
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- Humans, Pancreatic Fistula diagnostic imaging, Pancreatic Fistula etiology, Pancreatic Fistula therapy, Cholangiopancreatography, Endoscopic Retrograde adverse effects, Pancreas diagnostic imaging, Pancreatic Ducts diagnostic imaging, Pancreatic Ducts pathology, Magnetic Resonance Imaging, Pancreatitis complications, Pancreatitis diagnostic imaging, Pancreatic Diseases pathology
- Abstract
Pancreatic fistula is a highly morbid complication of pancreatitis. External pancreatic fistulas result when pancreatic secretions leak externally into the percutaneous drains or external wound (following surgery) due to the communication of the peripancreatic collection with the main pancreatic duct (MPD). Internal pancreatic fistulas include communication of the pancreatic duct (directly or via intervening collection) with the pleura, pericardium, mediastinum, peritoneal cavity, or gastrointestinal tract. Cross-sectional imaging plays an essential role in the management of pancreatic fistulas. With the help of multiplanar imaging, fistulous tracts can be delineated clearly. Thin computed tomography sections and magnetic resonance cholangiopancreatography images may demonstrate the communication between MPD and pancreatic fluid collections or body cavities. Endoscopic retrograde cholangiography (ERCP) is diagnostic as well as therapeutic. In this review, we discuss the imaging diagnosis and management of various types of pancreatic fistulas with the aim to sensitize radiologists to timely diagnosis of this critical complication of pancreatitis., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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28. Prevalence of Potentially Inappropriate Medications in Older Adults with Cognitive Impairment or Dementia Attending Memory Clinics: A Systematic Review and Meta-Analysis.
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Sharma R, Gill JK, Chhabra M, Carter C, Alkabbani W, Vidyasagar K, Chang F, Lee L, and Patel T
- Subjects
- Aged, Humans, Polypharmacy, Prevalence, Cognitive Dysfunction epidemiology, Dementia epidemiology, Dementia drug therapy, Inappropriate Prescribing statistics & numerical data, Potentially Inappropriate Medication List
- Abstract
Background: Older adults with dementia who are on polypharmacy are more vulnerable to the use of potentially inappropriate medications (PIM), which can significantly increase the risk of adverse events and drug-related problems (DRPs)., Objective: This systematic review and meta-analysis were conducted to map the prevalence of PIM use, polypharmacy, and hyper-polypharmacy among older adults with cognitive impairment or dementia attending memory clinics., Methods: Ovid MEDLINE, Ovid EMBASE, Scopus, Cochrane Library, EBSCOhost CINAHL, and Ovid International Pharmaceutical Abstracts (IPA) were systematically searched from inception to April 22, 2024. Observational studies assessing the PIMs use among older adults with CI or dementia were screened. A random- effects meta-analysis was conducted to pool the prevalence estimates., Results: Of 5,787 identified citations, 11 studies including 4,571 participants from 8 countries were included. Among all the included studies the pooled prevalence of PIM use was 38% (95% confidence interval (CIn): 27- 50%), highlighting a notable range from 20% to 78%. The analysis identified anticholinergics, benzodiazepines, and non-benzodiazepine sedatives as the most common PIMs. Subgroup analysis revealed a higher pooled prevalence of PIM in the USA (39%; 95% CIn: 10- 78, I2 (%) = 98, 3 studies) and Australia (36%, 95% CIn: 12- 70, I2 (%) = 96, 2 Studies). Additionally, pooled prevalence of polypharmacy and hyper-polypharmacy was reported as (60%; 95% CIn: 46- 73, I2 (%) = 95, 3 studies), and (The prevalence of hyper-polypharmacy was 17.6%; 1 study) respectively., Conclusions: The definition of PIMs significantly impacts study results, often more than geographical variations. The variability in criteria and tools like the Beers or Screening Tool of Older Persons' Prescriptions (STOPP) criteria across studies and regions leads to differing prevalence rates.
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- 2024
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29. Inappropriate Use of Proton Pump Inhibitor Among Elderly Patients in British Columbia: What are the Long-term Adverse Events?
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Ben-Eltriki M, Chhabra M, Cassels A, and Wright JM
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- Aged, Humans, Proton Pump Inhibitors adverse effects, British Columbia epidemiology, Clostridioides difficile, Cardiovascular Diseases drug therapy
- Abstract
Background: Proton pump inhibitors (PPIs) are one of the most used classes of drugs. For most indications, PPIs are only recommended up to 8 weeks duration. However, PPI use continues to expand. Regular and prolonged use of PPIs should be avoided because of the risk of adverse events., Objectives: The main objective of this study was to (1) investigate the extent of PPI usage in people aged 65 or older in the province of British Columbia (BC), Canada, (2) provide an overview of the harms associated with the long-term use of PPIs., Methods: We examined utilization trends of the PPIs in BC since the year 2009 using PharmaNet, BC's medication dispensing database where the information is accessible to community pharmacists. We performed a comprehensive literature search for relevant reviews reporting harms associated with long-term use of PPIs. A search was conducted from January 2014 to June 2022., Results: Between 2000 and 2018 BC's population grew by 20%, but the use of PPIs escalated to 257%. Of these older British Columbians, 62% had a cumulative exposure exceeding 2 years and 42% exceeded 5 years. This is alarming because the recommended treatment duration is 4-12 weeks for common indications including reflux esophagitis, and duodenal and gastric ulcers. Only 13.5% were dispensed PPIs for 90 days or less. Patients on long-term PPI therapy should be reassessed. Adverse events of PPI use are common among older adults. We identified over 217 systematic reviews published during the last 8 years of specific harms associated with long-term daily usage of PPIs. These harms include increased risks of death, cardiovascular disease, acute renal injury, chronic kidney disease, dementia, fractures, hypomagnesemia, iron deficiency, vitamin B12 deficiency, enteric infection (including C. difficile ), pneumonia, and neoplasia (gastric cancer, carcinoids, and colon cancer), and drug interactions., Conclusion: This study revealed a high prevalence of PPI use among elderly populations in BC, Canada. The overutilization of PPIs is often a result of failure to re-evaluate the need for continuation of therapy. Published studies identified signals of serious harm from long-term PPI exposure. Healthcare providers with patients can reverse the relentless expansion of long-term PPI exposure by discussing the expected benefits and potential harms., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
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- 2024
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30. Alterations in retrobulbar haemodynamics in thyroid eye disease.
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Goel R, Shah S, Gupta S, Khullar T, Singh S, Chhabra M, Khanam S, Kumar S, and Sharma P
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Blood Flow Velocity physiology, Ciliary Arteries physiology, Eye, Hemodynamics, Ophthalmic Artery diagnostic imaging, Ophthalmic Artery physiology, Ultrasonography, Doppler, Color, Graves Ophthalmopathy surgery, Retinal Artery diagnostic imaging, Retinal Artery physiology
- Abstract
Purpose: To study the orbital perfusion parameters of ophthalmic artery (OA) and central retinal artery (CRA) in inactive TED and the changes following surgical decompression., Methods: Non-randomised clinical trial. 24 inactive moderate-to-severe TED orbits of 24 euthyroid cases underwent surgical decompression and examined again at 3 months. The peak systolic velocity (PSV), end-diastolic velocity (EDV), and resistivity index (RI) of OA and CRA were evaluated using colour doppler imaging and normative database was established using 18 healthy controls., Results: The mean age was 39.38 ± 12.56 years and male: female ratio was 1: 1.18. Intraocular pressure was higher, and CRA-PSV, CRA-RI, OA-PSV, and OA-EDV were lower in TED in comparison to heathy orbits. The CRA-PSV, CRA-EDV, OA-PSV, and OA-EDV negatively correlated with proptosis and duration of thyroid disease. The area under curve of OA-PSV (95% CI:0.964-1.000, p < 0.001) and OA-EDV (95% CI:0.699-0.905, p < 0.001) helped in differentiating TED orbits from HC, and in predicting the severity of disease. Post decompression, CRA-PSV, CRA-EDV, OA-PSV, and OA-EDV improved, with decrease in CRA-RI and OA-RI in both lipogenic and MO., Conclusions: The orbital perfusion is reduced in inactive TED. The changes in OA flow velocities can help in differentiating inactive TED from healthy orbits and progression of TED. Sequential orbital CDI of OA and CRA can serve as an objective tool for case selection and monitoring response to surgical decompression., (© 2023. The Author(s), under exclusive licence to The Royal College of Ophthalmologists.)
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- 2023
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31. Cannabinoids for symptom management in children with cancer: A systematic review and meta-analysis.
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Chhabra M, Ben-Eltriki M, Paul A, Lê ML, Herbert A, Oberoi S, Bradford N, Bowers A, Rassekh SR, and Kelly LE
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- Child, Humans, Cannabis, Retrospective Studies, Vomiting chemically induced, Vomiting drug therapy, Antineoplastic Agents adverse effects, Cannabinoids therapeutic use, Medical Marijuana therapeutic use, Neoplasms drug therapy
- Abstract
Background: Despite the widespread use of medical cannabis, little is known regarding the safety, efficacy, and dosing of cannabis products in children with cancer. The objective of this study was to systematically appraise the existing published literature for the use of cannabis products in children with cancer., Methods: This systematic review, registered with the International Prospective Register of Systematic Reviews (CRD42020187433), searched four databases: MEDLINE, Embase, PsycINFO, and the Cochrane Library. Abstracts and full texts were screened in duplicate. Data on types of cannabis products, doses, formulations, frequencies, routes of administration, indications, and clinical and demographic details as well as reported efficacy outcomes were extracted. Data on cannabinoid-related adverse events were also summarized., Results: Out of 34,611 identified citations, 19 unique studies with a total of 1927 participants with cancer were included: eight retrospective chart reviews, seven randomized controlled trials, two open-label studies, and two case reports. The included studies reported the use of various cannabis products for the management of symptoms. Cannabinoids were commonly used for the management of chemotherapy-induced nausea and vomiting (11 of 19 [58%]). In controlled studies, somnolence, dizziness, dry mouth, and withdrawal due to adverse events were more commonly associated with the use of cannabinoids. Across all included studies, no serious cannabis-related adverse events were reported., Conclusions: Although there is evidence to support the use of cannabis for symptom management, in children with cancer, there is a lack of rigorous evidence to inform the dosing, safety, and efficacy of cannabinoids. Because of the increasing interest in using cannabis, there is an urgent need for more research on medical cannabis in children with cancer., (© 2023 The Authors. Cancer published by Wiley Periodicals LLC on behalf of American Cancer Society.)
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- 2023
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32. Sonographic "Cervix Sign": A New Ancillary Sign of Gallbladder Neck Malignancy.
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Rana P, Pruthi H, Gupta P, Chhabra M, Soundararajan R, Singh S, Gulati A, Das CK, Yadav TD, Gupta V, Gupta P, Saikia UN, Dutta U, and Sandhu M
- Abstract
Background: The differentiation of benign and malignant gallbladder wall thickening is challenging. The purpose of this study is to evaluate a new sonographic sign, "cervix sign" for differentiation of benign and malignant gallbladder neck thickening., Methods: This retrospective study comprised consecutive patients with gallbladder neck thickening who underwent sonography between August 2019 and December 2021. The presence of "cervix sign" was assessed by two radiologists independently., Results: Sixty-five patients had gallbladder neck thickening (28 malignant and 37 benign). The sonographic "cervix sign" was present in 18 (64%) patients with malignant thickening and in only one (2.7%) patient with benign thickening ( P = 0.0001). The mean wall thickness was greater, and symmetric wall thickening and liver metastases were more common in malignant thickening with "cervix sign" (without reaching statistical significance). There was substantial agreement (kappa = 0.78) between the two observers for the cervix sign., Conclusion: Sonographic "cervix sign" is a useful ancillary feature of gallbladder neck cancer., (© 2023 Indian National Association for Study of the Liver. Published by Elsevier B.V. All rights reserved.)
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- 2023
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33. 2D Shear wave elastography for evaluation of renal cortex and medulla: stiffness values in healthy children.
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Bhatia A, Dua A, Mehta V, Chhabra M, Sodhi KS, and Saxena AK
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- Humans, Child, Prospective Studies, Kidney diagnostic imaging, Kidney Cortex, Elasticity Imaging Techniques
- Abstract
Purpose: To evaluate renal cortical and medullary stiffness using 2D Shear-wave elastography (SWE) in healthy children., Methods: In this IRB approved prospective study, we measured the stiffness of cortex and medulla of children (4 months-17 years) at the upper pole, mid pole, and lower pole in bilateral kidneys., Results: The median (IQR) values of renal cortex in <1 year age group was 8.7 (5.7-11.7) kPa for right and 8.7 (4.2-14.1) kPa for the left side. For 1-5 years age group, it was 7.3 (5.3-10) kPa for the right and 8.9 (6-12.3) kPa for the left side. For >5 years, it was 7.4 (5.3-11.2) kPa for the right and 9.6 (6.2-12.7) kPa for the left side. The median (IQR) values of renal medulla in <1 year age group was 7.1 (5.1-12.5) kPa for right and 6.8 (4-10.6) kPa for the left side. For 1-5 years age group, it was 7.2 (4.9-9.7) kPa for the right and 6.9 (5.6-9.9) kPa for the left side. For >5 years, it was 6.8 (5.1-9.6) kPa for the right and 7 (5-10.2) kPa for the left side. The differences in the elasticity values amongst these groups were statistically insignificant (p>0.05). There was a significant correlation between SWE values of cortex and medulla of right kidney (ρ=0.64) and of left kidney (ρ=0.61), respectively., Conclusion: SWE values of renal cortical and medullary stiffness in healthy children do not correlate with age. There is a significant correlation between SWE values of cortex and medulla of the kidneys in healthy children., (© 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2023
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34. Gastrointestinal involvement in gallbladder cancer: Computed tomography findings and proposal of a classification system.
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Soundararajan R, Vanka S, Gupta P, Chhabra M, Rana P, Gulati A, Das CK, Gupta P, Saikia UN, Yadav TD, Gupta V, Kaman L, Singh H, Irrinki S, Dutta U, and Sandhu MS
- Subjects
- Humans, Retrospective Studies, Gastrointestinal Tract pathology, Tomography, X-Ray Computed, Duodenum pathology, Neoplasm Staging, Gallbladder Neoplasms diagnostic imaging, Gallbladder Neoplasms pathology
- Abstract
Background: There is relatively scarce data on the computed tomography (CT) detection of gastrointestinal (GI) involvement in gallbladder cancer (GBC). We aim to assess the GI involvement in GBC on CT and propose a CT-based classification., Methods: This retrospective study comprized consecutive patients with GBC who underwent contrast-enhanced computed tomography (CECT) for staging between January 2019 and April 2022. Two radiologists evaluated the CT images independently for the morphological type of GBC and the presence of GI involvement. GI involvement was classified into probable involvement, definite involvement and GI fistulization. The incidence of GI involvement and the association of GI involvement with the morphological type of GBC was evaluated. In addition, the inter-observer agreement for GI involvement was assessed., Results: Over the study period, 260 patients with GBC were evaluated. Forty-three (16.5%) patients had GI involvement. Probable GI involvement, definite GI involvement and GI fistulization were seen in 18 (41.9%), 19 (44.2%) and six (13.9%) patients, respectively. Duodenum was the most common site of involvement (55.8%), followed by hepatic flexure (23.3%), antropyloric region (9.3%) and transverse colon (2.3%). There was no association between GI involvement and morphological type of GBC. There was substantial to near-perfect agreement between the two radiologists for the overall GI involvement (k = 0.790), definite GI involvement (k = 0.815) and GI fistulization (k = 0.943). There was moderate agreement (k = 0.567) for probable GI involvement., Conclusion: GBC frequently involves the GI tract and CT can be used to categorize the GI involvement. However, the proposed CT classification needs validation., (© 2023. Indian Society of Gastroenterology.)
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- 2023
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35. Deep-learning enabled ultrasound based detection of gallbladder cancer in northern India: a prospective diagnostic study.
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Gupta P, Basu S, Rana P, Dutta U, Soundararajan R, Kalage D, Chhabra M, Singh S, Yadav TD, Gupta V, Kaman L, Das CK, Gupta P, Saikia UN, Srinivasan R, Sandhu MS, and Arora C
- Abstract
Background: Gallbladder cancer (GBC) is highly aggressive. Diagnosis of GBC is challenging as benign gallbladder lesions can have similar imaging features. We aim to develop and validate a deep learning (DL) model for the automatic detection of GBC at abdominal ultrasound (US) and compare its diagnostic performance with that of radiologists., Methods: In this prospective study, a multiscale, second-order pooling-based DL classifier model was trained (training and validation cohorts) using the US data of patients with gallbladder lesions acquired between August 2019 and June 2021 at the Postgraduate Institute of Medical Education and research, a tertiary care hospital in North India. The performance of the DL model to detect GBC was evaluated in a temporally independent test cohort (July 2021-September 2022) and was compared with that of two radiologists., Findings: The study included 233 patients in the training set (mean age, 48 ± (2SD) 23 years; 142 women), 59 patients in the validation set (mean age, 51.4 ± 19.2 years; 38 women), and 273 patients in the test set (mean age, 50.4 ± 22.1 years; 177 women). In the test set, the DL model had sensitivity, specificity, and area under the receiver operating characteristic curve (AUC) of 92.3% (95% CI, 88.1-95.6), 74.4% (95% CI, 65.3-79.9), and 0.887 (95% CI, 0.844-0.930), respectively for detecting GBC which was comparable to both the radiologists. The DL-based approach showed high sensitivity (89.8-93%) and AUC (0.810-0.890) for detecting GBC in the presence of stones, contracted gallbladders, lesion size <10 mm, and neck lesions, which was comparable to both the radiologists (p = 0.052-0.738 for sensitivity and p = 0.061-0.745 for AUC). The sensitivity for DL-based detection of mural thickening type of GBC was significantly greater than one of the radiologists (87.8% vs. 72.8%, p = 0.012), despite a reduced specificity., Interpretation: The DL-based approach demonstrated diagnostic performance comparable to experienced radiologists in detecting GBC using US. However, multicentre studies are warranted to explore the potential of DL-based diagnosis of GBC fully., Funding: None., Competing Interests: None., (© 2023 The Author(s).)
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- 2023
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36. Perinatal factors impacting echocardiographic left ventricular measurement in small for gestational age infants: a prospective cohort study.
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Elmakaty I, Amarah A, Henry M, Chhabra M, Hoang D, Suk D, Ron N, Dygulska B, Sy F, Gudavalli MB, Nadroo AM, Narula P, and Gad A
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- Pregnancy, Infant, Newborn, Male, Infant, Humans, Female, Gestational Age, Prospective Studies, Birth Weight, Echocardiography, Infant, Small for Gestational Age, Fetal Growth Retardation diagnostic imaging, Fetal Growth Retardation epidemiology
- Abstract
Introduction: Infants born small for gestational age (SGA) have an increased risk of developing various cardiovascular complications. While many influencing factors can be adjusted or adapt over time, congenital factors also have a significant role. This study, therefore, seeks to explore the effect of perinatal factors on the left ventricular (LV) parameters in SGA infants, as assessed immediately after birth., Methods and Materials: This single-center prospective cohort study, conducted between 2014 and 2018, involved healthy SGA newborns born > 35 weeks' gestation, delivered at New York-Presbyterian Brooklyn Methodist Hospital, and a gestational age (GA)-matched control group of appropriate for gestational age (AGA) infants. Data analysis was performed using multivariate linear regression in STATA., Results: The study enrolled 528 neonates, 114 SGA and 414 AGA. SGA infants exhibited a mean GA of 38.05 weeks (vs. 38.54), higher male representation (69.3% vs. 51.5%), lower birth weight (BW) (2318g vs 3381g), lower Apgar scores at birth, and a higher rate of neonatal intensive care unit admission compared to AGA infants (41.2% vs.18.9%; p<0.001). Furthermore, SGA infants were more likely to be born to nulliparous women (63.16% vs. 38.16%; p<0.001), with lower body mass index (BMI) (29.8 vs. 31.7; p=0.004), a lower prevalence of gestational maternal diabetes (GDM) (14.9 % vs. 35.5%; p<0.001), and a higher prevalence of preeclampsia (18.4 % vs. 6.52%; p<0.001). BW was identified as the most significant predictor affecting most LV parameters in this study (p<0.001), except shortening fraction, asymmetric interventricular septal hypertrophy and Inter-ventricular septal thickness/LV posterior wall ratio (IVS/LVPW). Lower GA (coefficient = -0.09, p=0.002), insulin use in GDM (coefficient = 0.39, p=0.014), and low APGAR scores at 1 minute (coefficient = -0.07, p<0.001) were significant predictors of IVS during diastole (R-squared [R
2 ]=0.24). High maternal BMI is marginally associated with LVPW during systole (R2 =0.27, coefficient = 0.01, p=0.050), while male sex was a significant predictor of LV internal dimension during diastole (R2 =0.29, p=0.033)., Conclusion: This study highlights the significant influence of perinatal factors on LV parameters in SGA infants, with BW being the most influential factor. Although LV morphology alone may not predict future cardiovascular risk in the SGA population, further research is needed to develop effective strategies for long-term cardiovascular health management in this population., (© 2023. BioMed Central Ltd., part of Springer Nature.)- Published
- 2023
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37. The versatility of microbial fuel cells as tools for organic matter monitoring.
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Sharma A and Chhabra M
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- Water, Electrodes, Bioelectric Energy Sources, Biosensing Techniques, Metals, Heavy
- Abstract
Water monitoring and remediation require robust, low-cost, and reliable test systems that can couple with prompt treatment interventions. Organic matter (BOD, COD), toxicants, heavy metals, and other pollutants in water need to be regularly inspected. Microbial fuel cells (MFCs) have already gained popularity as BOD biomonitoring systems as these don't need an external transducer or power source. Moreover, these systems are cost-effective, compact, biodegradable, reusable, portable, and applicable for on-site measurements. MFCs truly stands out as online BOD measurement devices as they provide wide detection range (0-25 g/L), low response time (2-4 min) and longer stability in continuous operations (2-5 years) in a cost-effective approach. This review examines the benefits, kinds, performance metrics, and signal optimization of the current state-of-the-art of the BOD measurement, with detailed focus on MFC-based BOD biomonitoring systems. This review covers the important technological breakthroughs in practical applications with associated bottlenecks to develop reliable sensing systems., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)
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- 2023
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38. Global prevalence and effect of comorbidities and smoking status on severity and mortality of COVID-19 in association with age and gender: a systematic review, meta-analysis and meta-regression.
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Chenchula S, Vidyasagar K, Pathan S, Sharma S, Chavan MR, Bhagavathula AS, Padmavathi R, Manjula M, Chhabra M, Gupta R, Amerneni KC, Ghanta MK, and Mudda S
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- Male, Humans, SARS-CoV-2, Prevalence, Cross-Sectional Studies, Obesity epidemiology, Smoking, COVID-19 epidemiology, Diabetes Mellitus epidemiology, Hypertension epidemiology, Asthma epidemiology
- Abstract
A COVID-19 patient often presents with multiple comorbidities and is associated with adverse outcomes. A comprehensive assessment of the prevalence of comorbidities in patients with COVID-19 is essential. This study aimed to assess the prevalence of comorbidities, severity and mortality with regard to geographic region, age, gender and smoking status in patients with COVID-19. A systematic review and multistage meta-analyses were reported using PRISMA guidelines. PubMed/MEDLINE, SCOPUS, Google Scholar and EMBASE were searched from January 2020 to October 2022. Cross-sectional studies, cohort studies, case series studies, and case-control studies on comorbidities reporting among the COVID-19 populations that were published in English were included. The pooled prevalence of various medical conditions in COVID-19 patients was calculated based on regional population size weights. Stratified analyses were performed to understand the variations in the medical conditions based on age, gender, and geographic region. A total of 190 studies comprising 105 million COVID-19 patients were included. Statistical analyses were performed using STATA software, version 16 MP (StataCorp, College Station, TX). Meta-analysis of proportion was performed to obtain pooled values of the prevalence of medical comorbidities: hypertension (39%, 95% CI 36-42, n = 170 studies), obesity (27%, 95% CI 25-30%, n = 169 studies), diabetes (27%, 95% CI 25-30%, n = 175), and asthma (8%, 95% CI 7-9%, n = 112). Moreover, the prevalence of hospitalization was 35% (95% CI 29-41%, n = 61), intensive care admissions 17% (95% CI 14-21, n = 106), and mortality 18% (95% CI 16-21%, n = 145). The prevalence of hypertension was highest in Europe at 44% (95% CI 39-47%, n = 68), obesity and diabetes at 30% (95% CI, 26-34, n = 79) and 27% (95%CI, 24-30, n = 80) in North America, and asthma in Europe at 9% (95% CI 8-11, n = 41). Obesity was high among the ≥ 50 years (30%, n = 112) age group, diabetes among Men (26%, n = 124) and observational studies reported higher mortality than case-control studies (19% vs. 14%). Random effects meta-regression found a significant association between age and diabetes (p < 0.001), hypertension (p < 0.001), asthma (p < 0.05), ICU admission (p < 0.05) and mortality (p < 0.001). Overall, a higher global prevalence of hypertension (39%) and a lower prevalence of asthma (8%), and 18% of mortality were found in patients with COVID-19. Hence, geographical regions with respective chronic medical comorbidities should accelerate regular booster dose vaccination, preferably to those patients with chronic comorbidities, to prevent and lower the severity and mortality of COVID-19 disease with novel SARS-CoV-2 variants of concern (VOC)., (© 2023. The Author(s).)
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- 2023
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39. Do trade openness and institutional quality contribute to carbon emission reduction? Evidence from BRICS countries.
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Chhabra M, Giri AK, and Kumar A
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- Cross-Sectional Studies, Economic Development, Health Facilities, Renewable Energy, Carbon, Carbon Dioxide
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The quest for rapid economic development by modern nations has led to an unprecedented increase in carbon emissions. Knowledge spillovers from increasing trade activities and effective environmental regulations have been suggested as viable means of controlling these rising emissions. To that end, this study aims to examine the impact 'trade openness' and 'institutional quality' had on CO
2 emissions in BRICS countries from 1991 to 2019. Three indices, namely, institutional quality, political stability, and political efficiency, are constructed to measure the overall institutional impact on emissions. A single indicator analysis is conducted for a deeper investigation of each index component. Given the existence of cross-sectional dependence among variables, the study uses the modern dynamic common correlated effects (DCCE) method to estimate their long-run relationships. Confirming the pollution haven hypothesis, the findings reveal that 'trade openness' indeed is a cause of environmental degradation in the BRICS nations. Through reduced corruption, improved political stability, bureaucratic accountability, and better law and order, 'institutional quality' is found to be contributing positively to environmental sustainability. It is also confirmed that renewable energy sources do have a positive environmental impact; however, it is found to be insufficient to offset the adverse effects caused by non-renewable sources. Based on the results, it is advised that BRICS countries should strengthen their cooperation with developed countries so that positive spillovers of green technologies may occur. Moreover, renewable resources should be aligned with firms' profits so that sustainable production practices can become the new norm., (© 2023. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2023
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40. Integration of third generation biofuels with bio-electrochemical systems: Current status and future perspective.
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Khandelwal A, Chhabra M, and Lens PNL
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Biofuels hold particular promise as these can replace fossil fuels. Algae, in particular, are envisioned as a sustainable source of third-generation biofuels. Algae also produce several low volume high-value products, which enhance their prospects of use in a biorefinery. Bio-electrochemical systems such as microbial fuel cell (MFC) can be used for algae cultivation and bioelectricity production. MFCs find applications in wastewater treatment, CO
2 sequestration, heavy metal removal and bio-remediation. Oxidation of electron donor by microbial catalysts in the anodic chamber gives electrons (reducing the anode), CO2, and electrical energy. The electron acceptor at the cathode can be oxygen/NO3 - /NO2 - /metal ions. However, the need for a continuous supply of terminal electron acceptor in the cathode can be eliminated by growing algae in the cathodic chamber, as they produce enough oxygen through photosynthesis. On the other hand, conventional algae cultivation systems require periodic oxygen quenching, which involves further energy consumption and adds cost to the process. Therefore, the integration of algae cultivation and MFC technology can eliminate the need of oxygen quenching and external aeration in the MFC system and thus make the overall process sustainable and a net energy producer. In addition to this, the CO2 gas produced in the anodic chamber can promote the algal growth in the cathodic chamber. Hence, the energy and cost invested for CO2 transportation in an open pond system can be saved. In this context, the present review outlines the bottlenecks of first- and second-generation biofuels along with the conventional algae cultivation systems such as open ponds and photobioreactors. Furthermore, it discusses about the process sustainability and efficiency of integrating algae cultivation with MFC technology in detail., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Khandelwal, Chhabra and Lens.)- Published
- 2023
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41. Knowledge, attitude, and practice of medical interns and postgraduate residents on American Geriatric Society updated Beers criteria.
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Rathore A, Sharma R, Bansal P, Chhabra M, and Arora M
- Abstract
Background: Potentially inappropriate medication (PIM) prevalence in older adults is increasing day by day due to lack of knowledge among medical students and professionals., Objective: To determine the knowledge of medical students toward American Geriatric Society (AGS) Beers criteria for PIM prescribing., Materials and Methods: This cross-sectional study employed a self-administered questionnaire which was validated and designed to assess the knowledge, attitude, and practice of medical interns and postgraduate residents on Beers criteria for PIMs in older adults. The study was conducted in Faridkot region of Punjab in 2019. This study will utilize a purposive sampling strategy and a convenience sampling of up to 183 participants. Mann-Whitney U or Kruskal-Wallis tests were used to compare different issues as appropriate. P values of <0.05 were considered significant., Results: Out of 183 questionnaires distributed, only 155 participants (response rate 84.6%) had filled the survey and were included in the study. 61.3% ( n = 95) of the respondents were males. The mean knowledge score of 155 participants was (5.16 ± 1.56), where the highest score was 9 and the lowest score was 2 out of 10. 15.5% ( n = 24) of the participant strongly agreed that Beers criteria use is necessary in clinical setting and would be very helpful. While 22.5% ( n = 35) of the participants strongly agreed that PIMs cause adverse drug event (ADE) and drug-related problems (DRPs) in older adults. Age of the participant had a significant effect on the knowledge score ( p = 0.009), and participant aged between 31 and 40 years had significantly higher knowledge scores compared with participants falls under 20-30 years., Conclusion: Medical students and postgraduate residents had average knowledge of PIMs and are unaware of the standard guidelines in older adults such as the Beers criteria. Lack of formal education or training about Beers guidelines was the main reason responsible for average knowledge among participants., Competing Interests: There are no conflicts of interest., (Copyright: © 2023 Journal of Education and Health Promotion.)
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- 2023
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42. Toward Diabetes Device Development That Is Mindful to the Needs of Young People Living With Type 1 Diabetes: A Data- and Theory-Driven Qualitative Study.
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Brew-Sam N, Parkinson A, Chhabra M, Henschke A, Brown E, Pedley L, Pedley E, Hannan K, Brown K, Wright K, Phillips C, Tricoli A, Nolan CJ, Suominen H, and Desborough J
- Abstract
Background: An important strategy to understand young people's needs regarding technologies for type 1 diabetes mellitus (T1DM) management is to examine their day-to-day experiences with these technologies., Objective: This study aimed to examine young people's and their caregivers' experiences with diabetes technologies in an exploratory way and relate the findings to the existing technology acceptance and technology design theories. On the basis of this procedure, we aimed to develop device characteristics that meet young people's needs., Methods: Overall, 16 in-person and web-based face-to-face interviews were conducted with 7 female and 9 male young people with T1DM (aged between 12 and 17 years) and their parents between December 2019 and July 2020. The participants were recruited through a pediatric diabetes clinic based at Canberra Hospital. Data-driven thematic analysis was performed before theory-driven analysis to incorporate empirical data results into the unified theory of acceptance and use of technology (UTAUT) and value-sensitive design (VSD). We used the COREQ (Consolidated Criteria for Reporting Qualitative Research) checklist for reporting our research procedure and findings. In this paper, we summarize the key device characteristics that meet young people's needs., Results: Summarized interview themes from the data-driven analysis included aspects of self-management, device use, technological characteristics, and feelings associated with device types. In the subsequent theory-driven analysis, the interview themes aligned with all UTAUT and VSD factors except for one (privacy). Privacy concerns or related aspects were not reported throughout the interviews, and none of the participants made any mention of data privacy. Discussions around ideal device characteristics focused on reliability, flexibility, and automated closed loop systems that enable young people with T1DM to lead an independent life and alleviate parental anxiety. However, in line with a previous systematic review by Brew-Sam et al, the analysis showed that reality deviated from these expectations, with inaccuracy problems reported in continuous glucose monitoring devices and technical failures occurring in both continuous glucose monitoring devices and insulin pumps., Conclusions: Our research highlights the benefits of the transdisciplinary use of exploratory and theory-informed methods for designing improved technologies. Technologies for diabetes self-management require continual advancement to meet the needs and expectations of young people with T1DM and their caregivers. The UTAUT and VSD approaches were found useful as a combined foundation for structuring the findings of our study., (©Nicola Brew-Sam, Anne Parkinson, Madhur Chhabra, Adam Henschke, Ellen Brown, Lachlan Pedley, Elizabeth Pedley, Kristal Hannan, Karen Brown, Kristine Wright, Christine Phillips, Antonio Tricoli, Christopher J Nolan, Hanna Suominen, Jane Desborough. Originally published in JMIR Diabetes (https://diabetes.jmir.org), 25.01.2023.)
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- 2023
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43. Imaging patterns of wall thickening type of gallbladder cancer.
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Soundararajan R, Marodia Y, Gupta P, Rana P, Chhabra M, Kalage D, Dutta U, and Sandhu M
- Abstract
Gallbladder cancer (GBC) has a high incidence in certain geographical regions. Morphologically, GBC presents as a mass replacing the gallbladder, a polypoidal lesion, or wall thickening. The incidence of preoperative diagnosis of wall thickening type of GBC is less well studied. The patterns of mural involvement and extramural spread are not well described in the literature. Additionally, wall thickening in the gallbladder does not always indicate malignancy and can be secondary to inflammatory or benign gallbladder diseases and extracholecystic causes and systemic pathologies. Objective reporting of gallbladder wall thickening will help us appreciate GBC's early features. In this review, we illustrate the imaging patterns of wall thickening type of GBC., Competing Interests: The authors declare no conflict of interest., (Copyright © 2022 Clinical and Experimental Hepatology.)
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- 2022
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44. Role of human leukocyte antigen in anti-epileptic drugs-induced Stevens-Johnson Syndrome/toxic epidermal necrolysis: A meta-analysis.
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Rashid M, Rajan AK, Chhabra M, Kashyap A, Chandran VP, Venkataraman R, Nair S, and Thunga G
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- Humans, HLA-DRB1 Chains, HLA-C Antigens, Asian People, HLA-B Antigens genetics, Anticonvulsants adverse effects, HLA Antigens genetics, Stevens-Johnson Syndrome genetics
- Abstract
Purpose: Antiepileptic drugs (AEDs) are extensively used to manage epilepsy and other comorbidities associated with seizures. Human Leukocyte Antigen (HLA) has a strong association with AED-induced severe cutaneous adverse drug reactions., Objective: We aimed to perform a systematic review and meta-analysis to identify, critically evaluate, and synthesize the best possible evidence on HLA-associated AED-induced Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis (SJS/TEN)., Methods: MEDLINE/PubMed, Scopus, and the Cochrane Library were searched for literature from inception up to July 2022. We included case control studies analyzing association between HLA and AED-induced SJS/TEN. We assessed the studies' risk of bias in using Quality of genetic studies (Q-genie) tool. Outcomes focused on association (risk) between HLA and AED-induced SJS/TEN. The estimated risk was presented in the form of odds ratio (OR)., Results: We included 37 studies (51,422 participants; 7027 cases and 44,395 controls). There was a significantly higher risk of Carbamazepine-induced SJS/TEN with HLA-A (OR: 1.50; 95% CI: 1.03 to 2.17), HLA-B (OR: 1.94; 95% CI: 1.45 to 2.58), HLA-C (OR: 7.83; 95% CI: 4.72 to 12.98), and HLA-DRB1 (OR: 2.82; 95% CI: 1.94 to 4.12). Lamotrigine-induced SJS/TEN posed a higher risk with HLA-A (OR: 2.38; 95% CI: 1.26 to 4.46) and HLA-B (OR: 2.79; 95% CI: 1.75 to 4.46). Phenytoin-induced SJS/TEN showed a higher risk with HLA-A (OR: 3.47; 95% CI: 2.17 to 5.56), HLA-B (OR: 1.72; 95% CI: 1.38 to 2.15), and HLA-C (OR: 2.92; 95% CI: 1.77 to 4.83). Phenobarbital-induced SJS/TEN had a higher risk with HLA-A (OR: 6.98; 95% CI: 1.81 to 26.84), HLA-B (OR: 2.40; 95% CI: 1.39 to 4.17), and HLA-C (OR: 3.37; 95% CI: 1.03 to 11.01). Zonisamide-induced SJS/TEN was significantly associated with HLA-A*02:07 (OR: 9.77; 95% CI: 3.07 to 31.1), HLA-B*46:01 (OR: 6.73; 95% CI: 2.12 to 21.36), and HLA-DRB1×08:03 (OR: 3.78; 95% CI: 1.20 to 11.97). All other alleles of HLA were observed to have a non-significant association with AED-induced SJS/TEN. All included studies were of good quality, with a score of >50 and a mean score of 54.96 out of 77., Conclusion: Our study showed a significant association between few variants of HLA alleles and AED-induced SJS/TEN. Evidences from our study could help in population-based studies and in implementation of individualized treatment regimens. These findings could be part of translational research helping in precision therapy., Competing Interests: Declaration of Competing Interest None of the authors have any conflicts of interest to declare. The listed authors are solely responsible for the originality and content of the manuscript. The authors have no relevant affiliations or financial involvements with any organizations or entities with a financial interest in or financial conflict with the subject matter discussed in the manuscript., (Copyright © 2022. Published by Elsevier Ltd.)
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- 2022
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45. Do technological innovations and trade openness reduce CO 2 emissions? Evidence from selected middle-income countries.
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Chhabra M, Giri AK, and Kumar A
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- Carbon, Developing Countries, Economic Development, Carbon Dioxide, Inventions
- Abstract
This paper examines the role of trade openness and innovation in reducing CO
2 emissions in middle-income countries with the goal of improving environmental quality. The generalised method of moments (GMM) method is used to estimate the long-run association between variables and Dumitrescu-Hurlin causality test is used to examine causality for a panel of 23 middle-income countries from 1994 to 2018. The findings refute the existence of an inverted u-shape relationship between innovation and CO2 emissions. On the trade front, environmental deterioration is found to be relatively more severe in low middle-income countries than upper middle-income countries. Contrarily, the existence of the environment Kuznets curve (EKC) hypothesis for both country groups is also supported by the data; however, the fall in the EKC curve is insignificant for low middle-income countries. Implying that the quest to control carbon emissions has just begun in low middle-income countries and they must target a higher level of green innovation to reduce the ever-rising CO2 emissions. It is also suggested to promote economic growth through knowledge spillovers and to establish a pollution level standard for trading and manufacturing sectors which generate the most contaminated waste., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)- Published
- 2022
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46. SARS-CoV-2 triggers complement activation through interactions with heparan sulfate.
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Lo MW, Amarilla AA, Lee JD, Albornoz EA, Modhiran N, Clark RJ, Ferro V, Chhabra M, Khromykh AA, Watterson D, and Woodruff TM
- Abstract
Objectives: To determine whether SARS-CoV-2 can trigger complement activation, the pathways that are involved and the functional significance of the resultant effect., Methods: SARS-CoV-2 was inoculated into a human lepirudin-anticoagulated whole blood model, which contains a full repertoire of complement factors and leukocytes that express complement receptors. Complement activation was determined by measuring C5a production with an ELISA, and pretreatment with specific inhibitors was used to identify the pathways involved. The functional significance of this was then assessed by measuring markers of C5a signalling including leukocyte C5aR1 internalisation and CD11b upregulation with flow cytometry., Results: SARS-CoV-2 inoculation in this whole blood model caused progressive C5a production over 24 h, which was significantly reduced by inhibitors for factor B, C3, C5 and heparan sulfate. However, this phenomenon could not be replicated in cell-free plasma, highlighting the requirement for cell surface interactions with heparan sulfate. Functional analysis of this phenomenon revealed that C5aR1 signalling and CD11b upregulation in granulocytes and monocytes was delayed and only occurred after 24 h., Conclusion: SARS-CoV-2 is a noncanonical alternative pathway activator that progressively triggers complement activation through interactions with heparan sulfate., Competing Interests: The authors declare no conflict of interest., (© 2022 The Authors. Clinical & Translational Immunology published by John Wiley & Sons Australia, Ltd on behalf of Australian and New Zealand Society for Immunology, Inc.)
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- 2022
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47. Opioid tapering support using a web-based app: Development and protocol for a pilot randomized controlled trial.
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Edmond SN, Wesolowicz DM, Moore BA, Ibarra J, Chhabra M, Fraenkel L, and Becker WC
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- Humans, Internet, Pain, Pilot Projects, Quality of Life, Randomized Controlled Trials as Topic, Analgesics, Opioid, Mobile Applications
- Abstract
Background: Given limited efficacy and potential harms of long-term opioid therapy, it is patient-centered and guideline-concordant to offer patients the opportunity to engage in a supportive, patient-centered tapering program. The goal of this study was to develop and pilot an interactive web-based program designed to support patients willing to consider an opioid taper; this manuscript describes the development and the protocol for a pilot randomized trial of Summit., Methods: We used intervention mapping to develop the Summit program; during the development period we engaged multiple stakeholder groups and conducted usability testing to refine the interactive, theory-informed, multi-component mobile website program which includes education, video testimonials, self-management skills, and access to a peer specialist. We will evaluate the Summit program in a two-arm, 9 month randomized-controlled trial where 64 individuals will be assigned either to the Summit program or to a control group (pain tracking app). As a pilot trial, the primary outcomes are feasibility and acceptability; we will also measure patient-reported outcomes related to pain, quality of life, and opioid use., Implications: We developed an interactive program; results of the pilot trial are pending. If shown to be effective, Summit would be useful both in augmenting care for patients who are engaged in a taper with primary care., (Published by Elsevier Inc.)
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- 2022
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48. Genetic diversity and population structure of critically endangered Dactylorhiza hatagirea (D. Don) Soo from North-Western Himalayas and implications for conservation.
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Sharma S, Chhabra M, Singh SK, Parmar R, and Kapila RK
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- Bayes Theorem, Gene Flow, Genetic Variation, Genetics, Population, Humans, Microsatellite Repeats genetics, Ecosystem, Orchidaceae genetics
- Abstract
Dactylorhiza hatagirea (D. Don) Soo is medicinally important herb, which is widely used in ayurveda, unani, and folk/traditional medicine system to cure diseases. Due to its immense ethno-botanical properties, the trade of D. hatagirea is estimated to be USD 1 billion/year in India. Unfortunately, due to overexploitation of the herb from the wild, has resulted in dwindling of its populations in their natural habitats, which has led to its critically endangered status. Molecular genetic studies are still scarce in D. hatagirea, therefore, in current study, genetic diversity and population structure analysis was carried out of 10 populations (48 individuals) collected from three cold desert regions (2527 m-3533 m amsl) of Himachal Pradesh. Mean observed heterozygosity (H
o ) and expected heterozygosity (He ) was recorded 0.185 and 0.158. The maximum values for Fst (fixation index) and Nm (gene flow) were recorded 0.945 at locus KSSR14 and 1.547 at locus KSSR 4 respectively. Mean genetic differentiation (Fst ) coefficient was estimated to 0.542. Overall, low levels of genetic diversity was recorded in the populations of D. hatagirea, might be due to habitat specificity (alpine meadows ecosystem; humid laden undulating habitat), restricted distribution and high anthropogenic activities. However, two populations viz., Bathad and Rangrik were recorded with high diversity and largest number of private alleles, stipulates that these populations might have high evolutionary significance and response to selection. Dendrogram analysis revealed that the populations of D. hatagirea were clustered into four major clusters, which was supported by Bayesian based STRUCTURE predictions. Clustering pattern of majority individuals of different populations revealed consistency with their geographic origin. Outcomes of current study reveals the status of genetic diversity and population structure of endangered D. hatagirea, which can be futuristically utilised for appropriate planning of conservation strategies., (© 2022. The Author(s).)- Published
- 2022
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49. Efficacy and safety of saroglitazar for the management of dyslipidemia: A systematic review and meta-analysis of interventional studies.
- Author
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Chhabra M, Vidyasagar K, Gudi SK, Sharma J, Sharma R, and Rashid M
- Subjects
- Adult, Alanine Transaminase, Aspartate Aminotransferases, Cholesterol, Cholesterol, HDL, Creatinine, Humans, Middle Aged, Dyslipidemias drug therapy
- Abstract
Background and Objective: Saroglitazar is a newer antidiabetic agent approved to manage dyslipidemia. The objective is tevaluate the efficacy and safety profiles of saroglitazar in patients with dyslipidemia., Methods: A systematic search was conducted using PubMed, Cochrane Library, Scopus, and Google Scholar from the inception until January 2022. Interventional studies comparing the anti-hyperlipidaemic effect and safety of saroglitazar with or without a control group(s) were included. The efficacy of saroglitazar was assessed concerning its effect on total cholesterol, low density lipoprotein (LDL) and high density lipoprotein (HDL)-cholesterol, triglycerides, fasting plasma glucose, and non-HDL cholesterol. The effects on serum creatinine levels, bodyweight reduction, alanine aminotransferase and aspartate aminotransferase were considered to be safety endpoint.The Cochrane risk of bias assessment tool was used to assess the methodological quality of the included studies., Results: A total of six studies with 581 adults with a mean age ranging from 40.2 to 62.6 years were included in this study. A significant decrease in low-density lipoprotein cholesterol was observed with saroglitazar 4 mg therapy compared to saroglitazar 2 mg [standardized mean difference (SMD): -0.23 mg/dL, 95% CI: -0.47 to 0.00; p = 0.05; 2 studies], and control [SMD: -0.36 mg/dL, 95% CI -0.59 to -0.12; p = 0.0026; 3 studies]. Also, a significant decrease in the total cholesterol was observed with saroglitazar 4 mg therapy compared to saroglitazar 2 mg [SMD - 0.28 mg/dL, 95% CI: - 0.52 to -0.04; p < 0.01; 2 studies], and control [SMD - 0.49 mg/dL, 95% CI: - 0.72 to -0.26; p < 0.0001; 3 studies]. Saroglitazar was not associated with adverse effects such as increase in serum creatinine levels, alanine aminotransferase and aspartate aminotransferase and bodyweight reduction., Conclusion: Saroglitazar appeared to be an effective and safer therapeutic option for improving dyslipidemia in patients. However, comparative studies of saroglitazar with the other pharmacological agents are warranted., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2022
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50. ACT Transition from Hospital to Home Orthopaedic Survey: a cross-sectional survey of unplanned 30-day readmissions for patients having total hip arthroplasty.
- Author
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Yeung S, Perriman D, Chhabra M, Phillips C, Parkinson A, Glasgow N, Douglas KA, Cox D, Smith P, and Desborough J
- Subjects
- Australia, Cross-Sectional Studies, Hospital to Home Transition, Hospitals, Humans, Patient Readmission, Retrospective Studies, Risk Factors, Arthroplasty, Replacement, Hip, Orthopedics
- Abstract
Objectives: The aim of this study was to identify patient, hospital and transitional factors associated with unplanned 30-day readmissions in patients who had a total hip arthroplasty (THA)., Design: A cross-sectional survey was performed. All patients attending a 6-week follow-up after a THA in the Australian Capital Territory (ACT) at four public and private clinics in the ACT from 1 February 2018 to 31 January 2019, were invited to complete an ACT Transition from Hospital to Home Orthopaedic Survey ., Participants: Within the ACT, 431 patients over the age of 16 attending their 6-week post-surgery consultation following a THA entered and completed the survey (response rate 77%)., Primary Outcome Measure: The primary outcome measure was self-reported readmissions for any reason within 30 days of discharge after a THA. Multiple logistic regression was used to estimate ORs of factors associated with unplanned 30-day readmissions., Results: Of the 431 participants (representing 40% of all THAs conducted in the ACT during the study period), 27 (6%) were readmitted within 30 days of discharge. After controlling for age and sex, patients who did not feel rested on discharge were more likely to be readmitted within 30 days than those who felt rested on discharge (OR=5.75, 95% CI: (2.13 to 15.55), p=0.001). There was no association between post-hospital syndrome (ie, in-hospital experiences of pain, sleep and diet) overall and readmission. Patients who suffered peripheral vascular disease (PVD) were significantly more likely to have an unplanned 30-day readmission (OR=16.9, 95% CI: (3.06 to 93.53), p=0.001). There was no significant difference between private and public patient readmissions CONCLUSIONS: Hospitals should develop strategies that maximise rest and sleep during patients' hospital stay. Diagnosis and optimum treatment of pre-existing PVD prior to THA should also be a priority to minimise the odds of subsequent unplanned readmissions., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2022
- Full Text
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