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Unnikrishnan G, Ilzhöfer P, Scholz A, Hölzl C, Götzelmann A, Gupta RK, Zhao J, Krauter J, Weber S, Makki N, Büchler HP, Pfau T, Meinert F. Coherent Control of the Fine-Structure Qubit in a Single Alkaline-Earth Atom. Phys Rev Lett 2024; 132:150606. [PMID: 38682979 DOI: 10.1103/physrevlett.132.150606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Accepted: 03/11/2024] [Indexed: 05/01/2024]
Abstract
We report on the first realization of a novel neutral atom qubit encoded in the spin-orbit coupled metastable states ^{3}P_{0} and ^{3}P_{2} of a single ^{88}Sr atom trapped in an optical tweezer. Raman coupling of the qubit states promises rapid single-qubit rotations on par with the fast Rydberg-mediated two-body gates. We demonstrate preparation, readout, and coherent control of the qubit. In addition to driving Rabi oscillations bridging an energy gap of more than 17 THz using a pair of phase-locked clock lasers, we also carry out Ramsey spectroscopy to extract the transverse qubit coherence time T_{2}. When the tweezer is tuned into magic trapping conditions, which is achieved in our setup by tuning the tensor polarizability of the ^{3}P_{2} state via an external control magnetic field, we measure T_{2}=1.2 ms. A microscopic quantum mechanical model is used to simulate our experiments including dominant noise sources. We identify the main constraints limiting the observed coherence time and project improvements to our system in the immediate future. Our Letter opens the door for a so-far-unexplored qubit encoding concept for neutral atom-based quantum computing.
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Affiliation(s)
- G Unnikrishnan
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - P Ilzhöfer
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - A Scholz
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - C Hölzl
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - A Götzelmann
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - R K Gupta
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - J Zhao
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - J Krauter
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - S Weber
- Institute for Theoretical Physics III and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - N Makki
- Institute for Theoretical Physics III and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - H P Büchler
- Institute for Theoretical Physics III and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - T Pfau
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - F Meinert
- 5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
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Kumari R, Gupta RK, Shalli, Bahl R, Langer B. Assessment of Dependency in Activities of Daily Living (ADL) and its Predictors: A Cross-Sectional Study among the Elderly Rural Population in a Sub-Himalayan UT of India. Indian J Community Med 2024; 49:398-403. [PMID: 38665471 PMCID: PMC11042144 DOI: 10.4103/ijcm.ijcm_1001_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 11/09/2023] [Indexed: 04/28/2024] Open
Abstract
Background With an increase in life expectancy over the last few decades, there has been a parallel increase in the prevalence of disabilities among the elderly population. To estimate the prevalence of dependency in activities of daily living (ADL) and its predictors among the rural elderly population. Material and Methods This was a cross-sectional study carried out in the community among the rural geriatric population in the field practice area of PG Department of Community Medicine, Government Medical College Jammu. The Barthel Scale Index was used to measure ADL dependency. PSPP software was used to analyze the data. Results The mean age of study participants was 68.31 ± 7.9 years. ADL dependency was observed in 46.3% of the subjects, with the majority demonstrating mild to moderate dependence. Only 2.5% of the respondents reported a severe degree of ADL dependence. The mean ADL score was 94.47 ± 8.98. On multivariate logistic regression analysis, age, educational status, the presence of stress in the family, personal history, and the presence of co-morbidities emerged to be independent predictors of ADL dependence. Conclusion High prevalence of physical disability in the geriatric population is now an area of major concern. This emphasizes the significance of setting up geriatric care centers especially in rural areas preferably integrating with health and wellness centers.
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Affiliation(s)
| | | | - Shalli
- Department of Community Medicine, AIIMS Jammu, Jammu and Kashmir, India
| | - Rakesh Bahl
- Department of Community Medicine, GMC Jammu, India
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Langer B, Gupta RK, Kumari R, Mahajan R. Food Insecurity and its Association with Dietary Diversity: A Cross-Sectional Study in Rural Households in Jammu. Indian J Community Med 2024; 49:70-75. [PMID: 38425949 PMCID: PMC10900475 DOI: 10.4103/ijcm.ijcm_811_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/06/2023] [Indexed: 03/02/2024] Open
Abstract
Background Food insecurity is a matter of public health concern as it is associated with adverse health outcomes particularly among vulnerable population. Accessibility and availability of nutritious and culturally appropriate food is paramount to achieve zero hunger. To assess the prevalence of household food insecurity, to estimate the household dietary diversity and its association with household food insecurity. Material and Methods Using multistage sampling 381 rural households were surveyed. Household Food Insecurity Access Scale and House hold Dietary Diversity Scale were used as study instruments. Chi square test was used to compare the two groups and P < 0.05 was considered to be statistically significant. Results Prevalence of household insecurity was 33.3% (127) among the surveyed households and 8.1% (31) had severe food insecurity. The mean HFIS score was 6.85 ± 4.82. The household Dietary diversity score was 8.14 ± 1.54 for food secure and 6.51 ± 1.38 for severely food insecure households. There was a statistically significant difference in intake of milk and milk products, fruits, eggs and meat/poultry among food secure and insecure households (P < 0.001 respectively). Conclusion Food insecurity was high in rural households and was associated with lower dietary intake of foods from protein group, necessitating a need to reinforce the food security programmes in rural India with focus to enhance protein rich diet.
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Affiliation(s)
- Bhavna Langer
- Department of Community Medicine, GMC Jammu, Jammu and Kashmir, India
| | - Rajiv Kumar Gupta
- Department of Community Medicine, GMC Jammu, Jammu and Kashmir, India
| | - Rashmi Kumari
- Department of Community Medicine, GMC Jammu, Jammu and Kashmir, India
| | - Richa Mahajan
- Department of Community Medicine, GMC Jammu, Jammu and Kashmir, India
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Mukherji P, Shilpy N, Gupta RK. Ocular fundal changes in children suffering from cerebral malaria. Indian J Ophthalmol 2023; 71:3394-3398. [PMID: 37787241 PMCID: PMC10683685 DOI: 10.4103/ijo.ijo_3389_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 06/04/2023] [Accepted: 06/15/2023] [Indexed: 10/04/2023] Open
Abstract
Purpose To assess the frequency and distribution of retinal changes in children suffering from cerebral malaria (CM), study the correlation between fundal changes and severity of disease, visual outcome, and survival of patients. Methods An observational, cross-sectional study was done on pediatric patients, suffering from CM in a tertiary care center in eastern India. A complete ophthalmological examination was done and findings were tabulated. Their hospital admission records were checked for severity of coma, recovery, and prognosis. Data were analyzed with SPSS software, and P value < 0.05 was considered statistically significant. Results Total 113 children of age group 0-18 years (mean age 7.88 ± 0.56 years) were enrolled in the study. Seventy-seven children (68.14%) had retinal changes. Most common retinal signs associated with malarial retinopathy were white centered hemorrhage and papilledema (53.09% each), followed by retinal whitening (51.33%) and vessel changes (39.82%). The correlation between the presence of white centered retinal hemorrhages and visual prognosis was found to be statistically significant (P = 0.001). Patients with Grade 4 parasitemia showed maximum retinal signs with a significant correlation between the severity of papilledema and parasite load (P = 0.037). Eighty-six patients (76.11%) survived and 27 patients (23.89%) died. All 27 patients who died showed all four signs of malarial retinopathy. Out of these, patients with retinal whitening suffered from severe coma, and this correlation was found to be statistically significant (P = 0.002). Conclusion Presence of retinal signs in patients with CM is associated with severe disease (high parasite load), poor visual outcome, and increased mortality.
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Affiliation(s)
- Payal Mukherji
- Department of Ophthalmology, Regional Institute of Ophthalmology (RIO), Rajendra Institute of Medical Sciences (RIMS), Ranchi, Jharkhand, India
| | - Neha Shilpy
- Department of Ophthalmology, Regional Institute of Ophthalmology (RIO), Rajendra Institute of Medical Sciences (RIMS), Ranchi, Jharkhand, India
| | - Rajiv Kumar Gupta
- Department of Ophthalmology, Regional Institute of Ophthalmology (RIO), Rajendra Institute of Medical Sciences (RIMS), Ranchi, Jharkhand, India
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Chauhan N, Raina SK, Gupta R, Kumar D, Chauhan R, Chaudhary A, Gupta RK. Development, standardization, and contextualization of qualitative tools for possible use in the assessment and valuation of snakebite envenomation. J Family Med Prim Care 2023; 12:1315-1319. [PMID: 37649775 PMCID: PMC10465058 DOI: 10.4103/jfmpc.jfmpc_1877_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 02/07/2023] [Accepted: 03/02/2023] [Indexed: 09/01/2023] Open
Abstract
Background Snakebite envenoming, a neglected tropical disease (NTD), is an important public health problem that is responsible for more than 1 lakh deaths annually across the world. However, the majority of the data in this regard is from health institutions and data from community settings are scarce. The aim of the current study was to develop valid and reliable qualitative tools for assessing the burden of snakebites and the health-seeking behavior of the community. The tools developed thus will serve in creating a community connection and thereby strengthen primary care teams engaged in managing snakebites at the primary care level. Methods A four-step design was used; (a) review of the available literature on the burden of disease, tools used to assess the burden, and the guidelines on snakebite (b) development, laying out, and contextualization of questions/items for the tools (c) pilot testing and establishment of validity. Results A focus group discussion guide, key informant interview schedule for health professionals, community leaders, and traditional faith healers were matured for the implementation. Conclusion A reliable and valid qualitative tool was developed to discern the speculations related to snakebites and its management in rural field settings.
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Affiliation(s)
- Nidhi Chauhan
- Department of Community Medicine, Dr Rajendra Prasad Government Medical College, Kangra, Himachal Pradesh, India
| | - Sunil Kumar Raina
- Department of Community Medicine, Dr Rajendra Prasad Government Medical College, Kangra, Himachal Pradesh, India
| | - Rahul Gupta
- Department of Forensic Medicine, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India
| | - Dinesh Kumar
- Department of Community Medicine, Dr Rajendra Prasad Government Medical College, Kangra, Himachal Pradesh, India
| | - Raman Chauhan
- Department of Community Medicine, Indira Gandhi Medical College, Shimla, Himachal Pradesh, India
| | - Ankit Chaudhary
- Department of Community Medicine, Dr Rajendra Prasad Government Medical College, Kangra, Himachal Pradesh, India
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Sultan A, Kumari R, Gupta RK, Langer B, Zargar T, Mir MT. Epidemiological and clinical profile of Laboratory confirmed cases of COVID 19 admitted in Tertiary care Hospital Jammu, J&K. Indian J Community Health 2022. [DOI: 10.47203/ijch.2022.v34i03.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background: Three or more waves of COVID 19 pandemic have hit the different parts of world including India very hard, taking toll on the lives of people both in terms of morbidity and mortality. Keeping this in mind, the present study was conducted with an aim to determine the socio-demographic and clinical profile of laboratory confirmed COVID 19 cases and to determine their association with oxygen requirement and outcome of disease at the time of discharge. Methods: The present cross-sectional study was conducted on lab confirmed COVID 19 cases admitted in tertiary care hospital in Jammu from June-July 2021.Data was collected using convenient sampling method. The self-designed questionnaire used for data collection obtained information regarding socio-demographic characteristics of patients as well as clinical features of the disease. Results: Out of total 161 patients studied, 60.8% were males and 39.2% were females. Mean age was 51.2 ± 17.5 years. Comorbid conditions were present in 37.8% patients, with hypertension being the most common ( 36%). Cough, Fever, breathlessness and myalgia were the main presenting symptoms (90%, 81%, 57.7% and 56% respectively). The variables which were found to have statistically significant association with oxygen requirement and the outcome of disease at the time of discharge were age, gender and presence of co-morbidity (p <0.05). Conclusions: Advancing age, male gender and presence of underlying co-morbidity were found to be significant risk factors for the requirement of oxygen and poor outcome of the disease.
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Jamieson WRE, Ely JL, Brink J, Pennel T, Bannon P, Patel J, Gupta RK, Mohan Rao PS, Agrawal D, Wiklund L, Kappetein AP, Haaverstad R, Geisner T, Doenst T, Schlensak C, Nair S, Brown C, Siepe M, Damiano RJ, Langlois Y, Cherian KM, Azar H, Chen JC, Bavaria JE, Fedoruk LM, Munfakh NA, Sridhar V, Scholz PM, Pfeffer TA, Ye J. PROSE: Prospective Randomized Trial of the On-X Mechanical Prosthesis and the St Jude Medical Mechanical Prosthesis Evaluation: Part 2: Study results-prostheses, positions, and economic development. JTCVS Open 2022; 12:51-70. [PMID: 36590733 PMCID: PMC9801238 DOI: 10.1016/j.xjon.2022.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 06/04/2022] [Accepted: 06/23/2022] [Indexed: 01/04/2023]
Abstract
Objectives The Prospective Randomized On-X Mechanical Prosthesis Versus St Jude Medical Mechanical Prosthesis Evaluation (PROSE) trial purpose was to investigate whether a current-generation mechanical prosthesis (On-X; On-X Life Technologies/Artivion Inc) reduced the incidence of thromboembolic-related complications compared with a previous-generation mechanical prosthesis (St Jude Medical Mechanical Prosthesis; Abbott/St Jude Medical). This second report documents the valve-related complications by individual prostheses and by Western and Developing populations. Methods The PROSE trial study was conducted in 28 worldwide centers and incorporated 855 subjects randomized between 2003 and 2016. The study enrollment was discontinued on August 31, 2016. The study protocol, and analyses of 10 demographic variables and 24 risk factors were published in detail in 2021. Results The total patient population (N = 855) included patients receiving an On-X valve (n = 462) and a St Jude Medical valve (n = 393). The overall freedom evaluation showed no differences at 5 years between the prostheses for thromboembolism or for valve thrombosis. There were also no differences in mortality. There were several differences between Developing and Western populations. The freedom relations at 5 years for mortality favored Western over Developing populations. Valve thrombosis was differentiated by position and site: aortic < mitral (P = .007) and Western < Developing (P = .005). In the mitral position there were no cases in Western populations, whereas there were 8 in Developing populations (P = .217). Conclusions The On-X valve and St Jude Medical valve performed equally well in the study with no differences found. The only differentiation occurred with valve thrombosis in the mitral position more than the aortic position and occurring in Developing more than Western populations. The occurrence of valve thrombosis was also related to a younger population possibly due to anticoagulation compliance based on record review.
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Affiliation(s)
- W. R. Eric Jamieson
- Vancouver Coastal Health Research Institute, Vancouver General Hospital and St. Paul's Hospital, University of British Columbia, Vancouver, British Colombia, Canada,Address for reprints: W. R. Eric Jamieson, MD, Vancouver Coastal Health Research Institute, University of British Columbia, 272 Waterleigh Dr, Vancouver, British Columbia V5X 4T2, Canada.
| | - John L. Ely
- Heart of the Matter Clinical Consultants, Austin, Tex
| | - Johan Brink
- Division of Cardiothoracic Surgery, University of Cape Town, Cape Town, South Africa
| | - Timothy Pennel
- Division of Cardiothoracic Surgery, University of Cape Town, Cape Town, South Africa
| | - Paul Bannon
- Department of Cardiovascular Surgery, Royal Prince Alfred Hospital, Sydney, New South Wales, Australia
| | - Jashvant Patel
- Department of Cardiac Surgery, B. D. Mehta Mahavir Heart Institute, Surat, India
| | - Rajiv Kumar Gupta
- Department of Cardiovascular and Thoracic Surgery, Dayanand Medical College, Ludhiana, India
| | - Prasanna Simha Mohan Rao
- Department of Cardiothoracic Surgery, Shri Jaya Deva Institute of Cardiovascular Sciences, Bangalore, India
| | - Damyanti Agrawal
- Department of Cardiovascular Surgery, Banaras Hindu University, Varanasi, India
| | - Lars Wiklund
- Department of Cardiothoracic Surgery, Sahlgrenska University Hospital, Gothenberg, Sweden
| | | | - Rune Haaverstad
- Department of Cardiothoracic Surgery, Haukeland University Hospital, Bergen, Norway
| | - Thomas Geisner
- Department of Cardiothoracic Surgery, Universitats Klinik Jena, Jena, Germany
| | - Torsten Doenst
- Department of Cardiovascular and Thoracic Surgery, Universitats Klinik Tuebingen, Tuebingen, Germany
| | - Christian Schlensak
- Department of Cardiothoracic Surgery, Apollo Multispecialty Hospital, Chennai, India
| | - Salgunan Nair
- Department of Cardiovascular Surgery, Horizon New Brunswick Heart Center, Saint John, New Brunswich, Canada
| | - Craig Brown
- Department of Cardiovascular Surgery, Universitats Herzzentrum, Freiburg, Germany
| | - Matthias Siepe
- Department of Surgery, Washington University School of Medicine, St Louis, Mo
| | - Ralph J. Damiano
- Division of Cardiac Surgery, Jewish General Hospital, Montreal, Québec, Canada
| | - Yves Langlois
- Department of Cardiovascular Surgery, Frontier Lifeline Hospital, Chennai, India
| | | | - Hormoz Azar
- Department of Thoracic Surgery, Kaiser-Permanente Hospital, Honolulu, Hawaii
| | - John C. Chen
- Department of Surgery, Christian Hospital Northeast, St Louis, Mo
| | - Joseph E. Bavaria
- Division of Cardiovascular Surgery, University of Pennsylvania, Philadelphia, Pa
| | - Lynn M. Fedoruk
- Division of Cardiac Surgery, Victoria Heart Institute, Victoria, British Columbia, Canada
| | - Nabil A. Munfakh
- Department of Cardiothoracic and Vascular Surgery, Apollo Multispecialty Hospital, Madurai, India
| | - V. Sridhar
- Department of Surgery, Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Peter M. Scholz
- Department of Surgery, Robert Wood Johnson Medical School, New Brunswick, NJ
| | - Thomas A. Pfeffer
- Department of Thoracic Surgery, Kaiser-Permanente Hospital, Los Angeles, Calif
| | - Jian Ye
- Division of Cardiovascular Surgery, St Paul's Hospital, Vancouver, British Columbia, Canada
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Mathur P, Udawat P, Mathur P, Ramrakhiani D, Mathur SK, Sitaraman S, Gupta RK, Sultania S, Gupta R. Antiviral Therapy in Cytomegalovirus-Associated Biliary Atresia. Indian J Pediatr 2022; 89:732. [PMID: 35258790 DOI: 10.1007/s12098-022-04093-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 01/11/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Praveen Mathur
- Department of Pediatric Surgery, SMS Medical College & Attached Hospitals, Jaipur, Rajasthan, India
| | - Priyanka Udawat
- Institute of Digestive & Liver Care, S. L. Raheja Hospital, Mumbai, Maharashtra, India.,Department of Pediatric Medicine, SMS Medical College & Attached Hospitals, Jaipur, Rajasthan, 302004, India
| | - Priyanshu Mathur
- Department of Pediatric Medicine, SMS Medical College, Jaipur, Rajasthan, India
| | - Dilip Ramrakhiani
- Department of GI & Liver Pathology, SMS Medical College & Attached Hospitals, Jaipur, Rajasthan, India
| | - Sandeep K Mathur
- Department of Endocrinology & Molecular Genetic Research Lab, SMS Medical College, Jaipur, Rajasthan, India
| | - S Sitaraman
- Department of Pediatric Medicine, SMS Medical College, Jaipur, Rajasthan, India
| | - R K Gupta
- Department of Pediatric Medicine, SMS Medical College, Jaipur, Rajasthan, India
| | - Saurav Sultania
- Department of Pediatric Surgery, SMS Medical College & Attached Hospitals, Jaipur, Rajasthan, India
| | - Reshu Gupta
- Department of Pediatric Medicine, SMS Medical College & Attached Hospitals, Jaipur, Rajasthan, 302004, India.
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Singh B, Gupta RK, Tandon R, Soni A, Kaur H, Mohan B, Wander GS. Prolapsing giant right atrial myxoma in a young male presenting as pulmonary embolism. Echocardiography 2022; 39:645-646. [PMID: 35279874 DOI: 10.1111/echo.15335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 02/28/2022] [Indexed: 11/28/2022] Open
Abstract
A 22-year male presented with complaints of dyspnea. Multimodality imaging revealed a polypoidal right atrial mass with submassive pulmonary embolism. The patient underwent urgent surgery. The pathological examination confirmed it as cardiac myxoma. Cardiac myxoma, a most common primary cardiac tumor, is commonly found in the left atrium. The right atrium is an uncommon site and the usual mode of presentation is the tumor or thrombus embolization to the pulmonary circulation.
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Affiliation(s)
- Bhupinder Singh
- Department of Cardiology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Rajiv Kumar Gupta
- Department of cardiothoracic surgery, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Rohit Tandon
- Department of Cardiology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Ankita Soni
- Department of Pathology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Harpreet Kaur
- Department of Pathology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Bishav Mohan
- Department of Cardiology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
| | - Gurpreet S Wander
- Department of Cardiology, Dayanand Medical College and Hospital, Ludhiana, Punjab, India
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S J S, Mishra S, Dutta K, Gupta RK, V M. Frequency dependence of dielectric permittivity and conductivity of functionalized carbon nanotube-nematic liquid crystal nanocomposite. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bala K, Gupta R, Gupta RK, Akhtar N. Knowledge and Perceptions Regarding Climacteric Among Rural Women in Jammu District of UT of J and K, India: A Cross-Sectional Study. J Midlife Health 2022; 13:163-168. [PMID: 36276633 PMCID: PMC9583368 DOI: 10.4103/jmh.jmh_217_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/08/2022] [Accepted: 03/28/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND The word Climacteric is shrouded in a culture of silence in our country, more so in the vast rural swathes of India. This survey was carried out to assess the knowledge and perceptions regarding climacteric in rural females of the Jammu district. MATERIALS AND METHODS The present study was conducted in the Kot-Bhalwal health block of Jammu district. A sample of 215 was calculated assuming a minimum prevalence of 65% of menopausal symptoms. Using a two-step simple random sampling technique, a total of 245 postmenopausal women from four villages of the health block were interviewed using a semi-structured questionnaire. RESULTS Among the sources of information about climacteric, family and friends were prime sources followed by community elders. About one-third (35.10%) of the respondents had no discussion about climacteric with anyone. The majority of the participants had a positive perception of climacteric and described it as a feeling of relief. About 77.9% of study participants rated their health as poor to fair. However, about one-fourth of women had taken health checkups for menopause-related symptoms. None of the respondents had any clue about oncological screening. CONCLUSION Despite positive perceptions, there is a need to dispel the misconceptions with rigorous awareness and counseling. The role of village-level health workers along with ANM at Sub Health Centers/Health and wellness centers is the game-changer in this context. Every opportunity including Antenatal clinics should be utilized to educate as well as screen menopausal females for various health problems.
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Affiliation(s)
- Kiran Bala
- Department of Community Medicine, GMC, Jammu, Jammu and Kashmir, India
| | - Riya Gupta
- Department of Ophthalmology, GMC, Jammu, Jammu and Kashmir, India
| | - Rajiv Kumar Gupta
- Department of Community Medicine, GMC, Jammu, Jammu and Kashmir, India
| | - Najma Akhtar
- Department of Community Medicine, GMC, Jammu, Jammu and Kashmir, India,Address for correspondence: Dr. Najma Akhtar, Department of Community Medicine, GMC, Jammu, Jammu and Kashmir, India. E-mail:
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Langer B, Kumari R, Gupta R, Mahajan R, Gupta RK, Langer R. Female gender disadvantage and its impact on Psychological morbidity: A cross- sectional study among married Indian rural women of child bearing age. Indian J Community Health 2021. [DOI: 10.47203/ijch.2021.v33i04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Background-Male preference is deeply entrenched in the society. Gender disadvantage predisposes to limited education, employment opportunities and healthcare. Aims and objectives: To assess the Gender disadvantage in rural married females and its impact on their psychological morbidity. Methodology: Analytical Cross sectional study was conducted in a randomly selected village of a rural health block. All the eligible women were interviewed using Door Knock Procedure. Psychological morbidity was assessed using 20 items Self Rating Questionnaire (SRQ-20). Statistical Analysis: Data was analysed using SPSS ver 20.0. Tests of significance applied were Chi square test and ANOVA. P value of <0.05 was considered to be statistically significant. Results: Prevalence of Female gender disadvantage was 59.89%. Parental male predisposition and socioeconomic status were found to be statistically associated (p<0.05). The women’s own preference for a male child was strongly predicted by their own gender disadvantage from the parents. Statistically significant difference in psychological morbidity was found amongst women who had both parental male predisposition and lack of empowerment in comparison to those who did not have these (p=0.00). Conclusion: Psychological morbidity due to gender disadvantage is a cause of concern. Social awareness and strongly enforced laws like PC-PNDT can reduce these preferences.
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Jamieson WRE, Ely JL, Brink J, Pennel T, Bannon P, Patel J, Kumar Gupta R, Mohan Rao PS, Agrawal D, Wiklund L, Kappetein AP, Haaverstad R, Geisner T, Doenst T, Schlensak C, Nair S, Brown C, Siepe M, Damiano RJ, Langlois Y, Cherian KM, Azar H, Chen JC, Bavaria JE, Fedoruk LM, Munfakh NA, Sridhar V, Scholz PM, Pfeffer TA, Ye J. PROSE: Prospective Randomized Trial of the On-X Mechanical Prosthesis and the St Jude Medical Mechanical Prosthesis Evaluation : Part 1(Patient Dynamics): Preoperative demographics and preoperative and operative risk factors. J Cardiothorac Surg 2021; 16:323. [PMID: 34732197 PMCID: PMC8565024 DOI: 10.1186/s13019-021-01632-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 08/05/2021] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVES The PROSE trial purpose is to investigate whether the incidence of thromboembolic-related complications is reduced with a current generation mechanical prosthesis (On-X Life Technologies/CryoLife Inc.-On-X) compared with a previous generation mechanical prosthesis (St Jude Medical-SJM). The primary purpose of the initial report is to document the preoperative demographics, and the preoperative and operative risk factors by individual prosthesis and by Western and Developing populations. METHODS The PROSE study was conducted in 28 worldwide centres and incorporated 855 subjects randomized between 2003 and 2016. The study enrollment was discontinued on August 31, 2016. The preoperative demographics incorporated age, gender, functional class, etiology, prosthetic degeneration, primary rhythm, primary valve lesion, weight, height, BSA and BMI. The preoperative and operative evaluation incorporated 24 risk factors. RESULTS The total patient population (855) incorporated On-X population (462) and the St Jude Medical population (393). There was no significant difference of any of the preoperative demographics between the On-X and SJM groups. The preoperative and operative risk factors evaluation showed there was no significant difference between the On-X and St Jude Medical populations. The preoperative and operative risk factors by valve position (aortic and mitral) also documented no differentiation. The dominant preoperative demographics of the Western world population were older age, male gender, sinus rhythm, aortic stenosis, congenital aortic lesion, and mitral regurgitation. The dominant demographics of the Developing world population were rheumatic etiology, atrial fibrillation, aortic regurgitation, mixed aortic lesions, mitral stenosis and mixed mitral lesions. The Developing world group had only one significant risk factor, congestive heart failure. The majority of the preoperative and operative risk factors were significant in the Western world population. CONCLUSIONS The preoperative demographics do not differentiate the prostheses but do differentiate the Western and Developing world populations. The preoperative and operative risk factors do not differentiate the prostheses BUT do differentiate the Western and Developing world populations.
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Affiliation(s)
- W R Eric Jamieson
- Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, Canada.
| | - John L Ely
- Heart of the Matter CV Consulting, Austin, USA
| | - Johan Brink
- University of Cape Town, Cape Town, South Africa
| | | | | | | | | | | | | | - Lars Wiklund
- Sahlgrenska University Hospital, Gothenburg, Sweden
| | | | | | | | | | | | | | - Craig Brown
- Horizon New Brunswick Heart Center, St. John, Canada
| | | | | | | | | | - Hormoz Azar
- Sentara Norfolk General Hospital, Norfolk, UK
| | | | | | | | | | - V Sridhar
- Apollo Mulitspecialty Hospitals, Madurai, India
| | - Peter M Scholz
- Robert Wood Johnson School of Medicine, New Brunswick, USA
| | | | - Jian Ye
- Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, Canada
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Kumar A, Manjuladevi V, Gupta RK. Refractive index of graphene AA and AB stacked bilayers under the influence of relative planar twisting. J Phys Condens Matter 2021; 34:015302. [PMID: 34614485 DOI: 10.1088/1361-648x/ac2d5f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
The optical properties of graphene in monolayer and bilayer structure is essential for the development of optical devices viz surface plasmon resonance (SPR) based bio-sensors. The band structure of the twisted bilayer graphene (BLG) is remarkably different than the normal AA or AB stacking. This provides an opportunity to control the optical and electrical properties of BLG by applying an in-plane twist to one of the layer relative to other in a BLG system. Here, we calculated the refractive index (RI) of AA and AB stacking of BLG system using density functional theory. Though the spectrum for AA stacking shows some similarity with that of monolayer graphene, the spectrum for AB stacking was found to be remarkably different. The spectrum of AB stacked layer is red-shifted and the absorption peaks in low energy regime increases nearly by three-folds. A large dependency of the twist angle on RI of twisted BLG were found. Based on the calculation, a schematic of phase diagram showing material behavior of such twisted BLG systems as a function of twist angle and photon energy was constructed. The twisted AA stacked BLG shows largely dielectric behavior whereas the twisted AB stacked BLG shows predominately semimetallic and semiconducting behavior. This study presents a RI landscape of twisted BLG dependent on important parameters viz photon energy and inplane relative twist angle. Our studies will be very useful for the design and development of optical devices employing BLG systems particularly SPR based bio-sensors which essentially measures change in RI due to adsorption of analytes.
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Affiliation(s)
- Amrit Kumar
- Department of Physics, Birla Institute of Technology and Science, Pilani (BITS Pilani), 333031, India
| | - V Manjuladevi
- Department of Physics, Birla Institute of Technology and Science, Pilani (BITS Pilani), 333031, India
| | - R K Gupta
- Department of Physics, Birla Institute of Technology and Science, Pilani (BITS Pilani), 333031, India
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15
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Pandey M, George MP, Gupta RK, Gusain D, Dwivedi A. Impact of COVID-19 induced lockdown and unlock down phases on the ambient air quality of Delhi, capital city of India. Urban Clim 2021; 39:100945. [PMID: 34377634 PMCID: PMC8339501 DOI: 10.1016/j.uclim.2021.100945] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 07/17/2021] [Accepted: 07/31/2021] [Indexed: 05/05/2023]
Abstract
The present study deals with the impact of the pandemic outbreak of COVID-19 on the ambient air quality in the capital city of India. Real-time data were collected from eight continuous ambient air quality monitoring stations measuring important air quality parameters (NO2, PM10 and PM2.5). Results revealed that the city's air quality had improved significantly during the lockdown period due to COVID-19 outbreak. The concentration of gaseous and particulate matter during the lockdown period (March-May 2020) declined significantly compared with the preceding years' data from the same timeframe. However, the ambient air quality deteriorates with the onset of unlocking phases and post-monsoon season (October 2020). Higher concentration of NO2, PM10 and PM2.5 were recorded at industrial (S1 and S2) and hotspot (S4 and S5) sites. The lowest concentrations of studied pollutants were observed during the first phase of lockdown (March 24 - May 14, 2020). The present study, once again, establishes the direct effect of anthropogenic activities and deteriorating ambient air quality of Delhi.
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Affiliation(s)
- Mayank Pandey
- Department of Environmental Studies, P.G.D.A.V. College (Evening), University of Delhi, Ring Road, Nehru Nagar, Delhi 110065, India
| | - M P George
- Air Laboratory Delhi Pollution Control Committee Fourth Floor, ISBT Building, Kashmere Gate, Delhi 110006, India
| | - R K Gupta
- P.G.D.A.V. College (Evening), University of Delhi, Ring Road, Nehru Nagar, Delhi 110065, India
| | - Deepak Gusain
- Department of Environmental Studies, P.G.D.A.V. College (Evening), University of Delhi, Ring Road, Nehru Nagar, Delhi 110065, India
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16
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Soni A, Gupta RK, Raghav M, Masih GD, Bansal P. Comparison of Bone-Patellar Tendon-Bone Graft, Semitendinosus-Gracilis Graft and Semitendinosus-Gracilis with Preserved Tibial Insertion Graft in Anterior Cruciate Ligament Reconstruction in Sports Persons. Malays Orthop J 2021; 15:12-17. [PMID: 34429817 PMCID: PMC8381676 DOI: 10.5704/moj.2107.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 04/04/2021] [Indexed: 11/05/2022] Open
Abstract
Introduction Bone-patellar tendon-bone (BPTB) and semitendinosus-gracilis (STG) are the commonest grafts used for ACL reconstruction. However even after having been debated for years, there is no consensus about the ideal graft. Moreover, the literature is deficient about STG graft with preserved tibial insertion (STGPI) which preserves the proprioception. Our aim is to compare the outcome of BPTB, free STG and STGPI grafts after ACL reconstruction in professional sports persons. We compared the outcome in terms of mechanical stability, functional outcome, return to sports activity and degenerative changes. Material and Methods Professional sports persons aged between 16-50 years operated for ACL tear using BPTB, free STG and STGPI grafts with minimum follow-up of two years were identified from hospital records. Patients with associated knee injuries were excluded. Patients, divided in three groups according to graft used, were compared in terms of mechanical stability (arthrometric examination KT-1000 score), functional outcome (Lysholm Score), return to sports activity (Tegner score and difference in thigh circumference) and degenerative changes (KL grading). Results BPTB graft group was found to be better than free STG and STGPI graft groups in terms of KT-1000 score. There was no statistically significant difference among the groups in terms of Lysholm score, Tegner score, difference in thigh circumference and KL grading. Conclusion BPTB graft is better than free STG and STGPI grafts in terms of knee stability. When compared for patient reported outcome, return to sports activity, osteoarthritic changes and graft failure there is no significant difference among the three types of grafts.
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Affiliation(s)
- A Soni
- Department of Orthopaedics, Government Medical College and Hospital, Chandigarh, India
| | - R K Gupta
- Department of Orthopaedics, Government Medical College and Hospital, Chandigarh, India
| | - M Raghav
- Department of Orthopaedics, Government Medical College and Hospital, Chandigarh, India
| | - G D Masih
- Department of Orthopaedics, Government Medical College and Hospital, Chandigarh, India
| | - P Bansal
- Department of Orthopaedics, Government Medical College and Hospital, Chandigarh, India
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Kumari R, Langer B, Gupta RK, Bahl R, Akhtar N, Nazir H. Prevalence and Determinants of Cognitive Impairment and Depression among the Elderly Population in a Rural Area of North India. Indian J Community Med 2021; 46:236-240. [PMID: 34321733 PMCID: PMC8281830 DOI: 10.4103/ijcm.ijcm_475_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 01/20/2021] [Indexed: 11/04/2022] Open
Abstract
Background: Demographic transition has resulted in population aging, which has led to advancement in multiple geriatric problems including cognitive impairment (CI) and depression. Objectives: The objective was to find the prevalence and determinants of CI and depression in the rural elderly population. Materials and Methods: This was a community-based cross-sectional study conducted in a rural area. The prevalence of CI was measured using the Mini-Mental State Examination scale and depression was assessed using the Geriatric Depression Scale. The data so collected were analyzed using PSPP software. Results: The mean age of the study participants was 67.47 ± 6.43 years. The prevalence of CI and geriatric depression was found to be 36% (153/425) and 29.1% (124/425), respectively. Variables which were found to have independent significant association on multivariate analysis with CI were literacy, memory complaints, and depression. For geriatric depression, an independent association was seen with literacy, socioeconomic status, memory complaints, stress in the family, and presence of CI. CI and geriatric depression were found to be strongly correlated with each other (r = −0.252, P < 0.001). Conclusions: Almost one-third of the geriatric population is suffering from depression (29.1%) and CI (36%). This necessitates for accurate and timely diagnosis, so as to ensure proper care and support to the elderly population with emphasis on geriatric mental health care.
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Affiliation(s)
| | | | | | - Rakesh Bahl
- Department of Community Medicine, GMC, Jammu, India
| | - Najma Akhtar
- Department of Community Medicine, GMC, Jammu, India
| | - Heena Nazir
- Department of Community Medicine, GMC, Jammu, India
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18
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Gupta C, Gupta R, Kumari R, Gupta RK, Bhagat P, Mir MT, Nazir H, Raina SK. Public knowledge, attitudes, and practices toward COVID-19: An online cross-sectional study in the Union territory of Jammu and Kashmir. J Family Med Prim Care 2021; 10:1155-1160. [PMID: 34041143 PMCID: PMC8140228 DOI: 10.4103/jfmpc.jfmpc_1332_20] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 09/08/2020] [Accepted: 09/26/2020] [Indexed: 11/05/2022] Open
Abstract
Background: COVID-19, since its emergence, has become a global health problem with countries adopting unprecedented measures to control the spread of this pandemic. Adherence of the populations to control measures is affected by their knowledge, attitude, and practices (KAP) towards the disease. It was with this aim that the present study was conducted among the residents of UT of J&K to assess their KAP toward COVID-19. Methodology: A cross-sectional online survey of 464 J&K residents was conducted between 1st May and 10th May 2020. Survey Monkey tool was used to develop a link and KAP questionnaire was used for data collection. The survey instrument consisted of demographic characteristics, 11 items on knowledge, 5 items on attitudes, and 7 items on practices. Data collected was represented in descriptive statistics, and one-way analysis of variance was the test of significance. Results: Mean knowledge, attitude, and practice scores were 7.69 ± 0.74, 4.70 ± 0.57, and 4.32 ± 0.68, respectively, among the respondents. Majority (99%) knew the sign and symptoms, mode of transmission of the disease and avoided attending large gatherings. Use of mask was almost universal and about 38% were taking supplements like vitamins or herbal medicines. Good knowledge, positive attitude, and appropriate practices among the respondents about COVID-19 suggest that community based health education programs play a key role in containment and mitigation of this disease. Conclusion: Sustained messaging and updates from the national and local health authorities on COVID-19 to the public are likely to help control the transmission of the disease.
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Affiliation(s)
- Chandani Gupta
- Department of Community Medicine, ASCOMS Jammu, J&K, India
| | - Riya Gupta
- Department of Opthalmology, GMC, Jammu, J&K, India
| | - Rashmi Kumari
- Department of Community Medicine, GMC Jammu, J&K, India
| | | | - Preeti Bhagat
- Department of Community Medicine, GMC Jammu, J&K, India
| | - Mehak T Mir
- Department of Community Medicine, GMC Jammu, J&K, India
| | - Heena Nazir
- Department of Community Medicine, GMC Jammu, J&K, India
| | - Sunil Kumar Raina
- Department of Community Medicine, RP Govt. Medical College Tanda, Kangra, Himachal Pradesh, India
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19
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Gupta RK, Vajpayee S, Agrawal R, Goyal AK, Nair NP, Thiyagarajan V. Post Vaccination Epidemiology and Genotyping of Rotavirus Gastroenteritis at a Tertiary Care Centre of North-East Rajasthan. Indian J Pediatr 2021; 88:90-96. [PMID: 33247377 DOI: 10.1007/s12098-020-03569-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/09/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVES To estimate the proportion of rotavirus diarrhea among hospitalized children aged under-five years, to determine the circulating rotavirus genotypes and to know impact rotavirus vaccine on prevalence and severity of rotavirus diarrhea. METHODS This study was a hospital based cross-sectional observational study conducted over a period of 29 mo (September 2017 through January 2020). Stool samples were collected from children who fall within the age range of 0-59 mo with acute diarrhea attending emergency or needing admission. Stool samples were tested for rotavirus by the enzyme linked immune-sorbent assay (ELISA) and genotyped using published methods. RESULTS Out of 1480 samples, 360 (24.32%) cases were positive for rotavirus by ELISA, majority of them were male (62.97%). Maximum rotavirus positivity was found in the age group of <11 mo (55.27%). Statistically significance difference was seen in episodes of diarrhea and experience of vomiting in rotavirus diarrhea cases. Highest prevalence has been seen during winter season. The most prevalent G and P type combinations were G3P [8] strains [122 (34.08%)], G2P [4] [83 (23.18%)], G1P [8] [27 (7.54%)] and G9P [4] [20 (5.59%)]. Mixed strains contribute a significant proportion of stool sample. CONCLUSIONS Rotavirus is an important cause of diarrhea in hospitalized children. There is continued circulation of G9 and G12 strains and the emergence of G3P [8] as most common strain.
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Affiliation(s)
- R K Gupta
- Department of Pediatric Medicine, SMS Medical College, Jaipur, Rajasthan, India
| | - Shailja Vajpayee
- Department of Pediatric Medicine, SMS Medical College, Jaipur, Rajasthan, India
| | - Ruchi Agrawal
- Department of Pathology, SMS Medical College, Jaipur, Rajasthan, India
| | - Alok Kumar Goyal
- Department of Pediatric Medicine, SMS Medical College, Jaipur, Rajasthan, India.
| | - Nayana P Nair
- Wellcome Trust Research Laboratory, Christian Medical College, Vellore, Tamil Nadu, India
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20
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Kumawat KC, Sharma P, Nagpal S, Gupta RK, Sirari A, Nair RM, Bindumadhava H, Singh S. Dual Microbial Inoculation, a Game Changer? - Bacterial Biostimulants With Multifunctional Growth Promoting Traits to Mitigate Salinity Stress in Spring Mungbean. Front Microbiol 2021; 11:600576. [PMID: 33584566 PMCID: PMC7874087 DOI: 10.3389/fmicb.2020.600576] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Accepted: 12/16/2020] [Indexed: 11/13/2022] Open
Abstract
Soil microbes play a vital role in improving plant growth, soil health, ameliorate biotic/abiotic stress and enhance crop productivity. The present study was aimed to investigate a coordinated effect of compatible consortium [salt tolerating Rhizobium and rhizobacterium with 1-aminocyclopropane-1-carboxylate (ACC) deaminase] in enhancing plant growth promoting (PGP) traits, symbiotic efficiency, nutrient acquisition, anti-oxidative enzymes, grain yield and associated profitability in spring mungbean. We identified a non-pathogenic compatible Rhizobium sp. LSMR-32 (MH644039.1) and Enterococcus mundtii LSMRS-3 (MH644178.1) from salt affected areas of Punjab, India and the same were assessed to develop consortium biofertilizer based on salt tolerance, multifarious PGP traits, antagonistic defense activities and presence of nifH, acds, pqq, and ipdc genes. Indole Acetic acid (IAA), P-solubilization, biofilm formation, exo-polysaccharides, siderophore, salt tolerance, ACC deaminase activities were all found highly significant in dual inoculant (LSMR-32 + LSMRS-3) treatment compared to LSMR-32 alone. Under saline soil conditions, dual inoculant showed a higher seed germination, plant height, biomass, chlorophyll content and macro and micro-nutrient uptake, than un-inoculated control. However, symbiotic (nodulation, nodule biomass and leghaemoglobin content) and soil quality parameters (phosphatase and soil dehydrogenase enzymes) increased numerically with LSMR-32 + LSMRS-3 over Rhizobium sp. LSMR-32 alone. Dual bacterial inoculation (LSMR-32 + LSMRS-3) increased the proline content (2.05 fold), anti-oxidative enzymes viz., superoxide dismutase (1.50 fold), catalase (1.43 fold) and peroxidase (3.88 folds) in contrast to control treatment. Decreased Na+ accumulation and increased K+ uptake resulted in favorable K+/Na+ ratio through ion homeostasis. Co-inoculation of Rhizobium sp. LSMR-32 and Enterococcus mundtii LSMRS-3 significantly improved the grain yield by 8.92% and led to superior B: C ratio over Rhizobium sp. alone under salt stress. To best of our knowledge this is perhaps the first field report from Indian soils that largely describes dual inoculation of Rhizobium sp. LSMR-32 and Enterococcus mundtii LSMRS-3 and the same can be considered as a game-changer approach to simultaneously induce salt tolerance and improve productivity in spring mungbean under saline stress conditions.
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Affiliation(s)
| | - Poonam Sharma
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | - Sharon Nagpal
- Department of Microbiology, Punjab Agricultural University, Ludhiana, India
| | - R K Gupta
- Department of Soil Science, Punjab Agricultural University, Ludhiana, India
| | - Asmita Sirari
- Department of Plant Breeding and Genetics, Punjab Agricultural University, Ludhiana, India
| | | | | | - Sudeep Singh
- Regional Research Station, Punjab Agricultural University, Bathinda, India
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21
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Yadav PK, Gupta RK, Choubey AK, Ali S, Goutam UK, Modi MH. Carbon removal from a mirror-like gold surface by UV light, RF plasma, and IR laser exposure: a comparative study. Appl Opt 2021; 60:89-97. [PMID: 33362083 DOI: 10.1364/ao.400508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
A decrease in photon intensity due to carbon contamination on optical elements is a serious issue in synchrotron radiation (SR) beamlines. Photon intensity can be regained by refurbishment of optical elements using suitable techniques. In the literature, three suitable techniques [radio frequency (RF) plasma, ultraviolet (UV) radiation (λ=172nm), and infrared (IR) laser (λ=1064nm) exposure] are reported to remove carbon contaminations from optical elements. These techniques are used independently to remove carbon, and, to the best of our knowledge, no systematic study is available on their relative efficiencies and effects on a mirror surface. We have applied these techniques independently for removal of carbon contamination from a gold surface, and detailed surface characterizations are carried out using soft x-ray reflectivity, x-ray photoelectron spectroscopy, Raman spectroscopy, and atomic force microscopy techniques. Characterization results suggest that all three techniques are capable of removing carbon contamination with certain limitations. Here, detailed relative effects on a gold surface after cleaning experiments with three techniques are discussed.
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22
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Kemp SA, Collier DA, Datir R, Ferreira I, Gayed S, Jahun A, Hosmillo M, Rees-Spear C, Mlcochova P, Lumb IU, Roberts DJ, Chandra A, Temperton N, Sharrocks K, Blane E, Briggs J, van GM, Smith K, Bradley JR, Smith C, Doffinger R, Ceron-Gutierrez L, Barcenas-Morales G, Pollock DD, Goldstein RA, Smielewska A, Skittrall JP, Gouliouris T, Goodfellow IG, Gkrania-Klotsas E, Illingworth C, McCoy LE, Gupta RK. Neutralising antibodies in Spike mediated SARS-CoV-2 adaptation. medRxiv 2020:2020.12.05.20241927. [PMID: 33398302 PMCID: PMC7781345 DOI: 10.1101/2020.12.05.20241927] [Citation(s) in RCA: 69] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
SARS-CoV-2 Spike protein is critical for virus infection via engagement of ACE2, and amino acid variation in Spike is increasingly appreciated. Given both vaccines and therapeutics are designed around Wuhan-1 Spike, this raises the theoretical possibility of virus escape, particularly in immunocompromised individuals where prolonged viral replication occurs. Here we report chronic SARS-CoV-2 with reduced sensitivity to neutralising antibodies in an immune suppressed individual treated with convalescent plasma, generating whole genome ultradeep sequences by both short and long read technologies over 23 time points spanning 101 days. Although little change was observed in the overall viral population structure following two courses of remdesivir over the first 57 days, N501Y in Spike was transiently detected at day 55 and V157L in RdRp emerged. However, following convalescent plasma we observed large, dynamic virus population shifts, with the emergence of a dominant viral strain bearing D796H in S2 and ΔH69/ΔV70 in the S1 N-terminal domain NTD of the Spike protein. As passively transferred serum antibodies diminished, viruses with the escape genotype diminished in frequency, before returning during a final, unsuccessful course of convalescent plasma. In vitro, the Spike escape double mutant bearing ΔH69/ΔV70 and D796H conferred decreased sensitivity to convalescent plasma, whilst maintaining infectivity similar to wild type. D796H appeared to be the main contributor to decreased susceptibility, but incurred an infectivity defect. The ΔH69/ΔV70 single mutant had two-fold higher infectivity compared to wild type and appeared to compensate for the reduced infectivity of D796H. Consistent with the observed mutations being outside the RBD, monoclonal antibodies targeting the RBD were not impacted by either or both mutations, but a non RBD binding monoclonal antibody was less potent against ΔH69/ΔV70 and the double mutant. These data reveal strong selection on SARS-CoV-2 during convalescent plasma therapy associated with emergence of viral variants with reduced susceptibility to neutralising antibodies.
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Affiliation(s)
- S A Kemp
- Division of Infection and Immunity, University College London, London, UK
| | - D A Collier
- Division of Infection and Immunity, University College London, London, UK
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - R Datir
- Division of Infection and Immunity, University College London, London, UK
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Iatm Ferreira
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - S Gayed
- Department of Infectious Diseases, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - A Jahun
- Department of Pathology, University of Cambridge, Cambridge
| | - M Hosmillo
- Department of Pathology, University of Cambridge, Cambridge
| | - C Rees-Spear
- Division of Infection and Immunity, University College London, London, UK
| | - P Mlcochova
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Ines Ushiro Lumb
- NHS Blood and Transplant, Oxford and BRC Haematology Theme, University of Oxford, UK
| | - David J Roberts
- NHS Blood and Transplant, Oxford and BRC Haematology Theme, University of Oxford, UK
| | - Anita Chandra
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - N Temperton
- Viral Pseudotype Unit, Medway School of Pharmacy, University of Kent, UK
| | - K Sharrocks
- Department of Infectious Diseases, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - E Blane
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Jag Briggs
- Medical Research Council Laboratory of Molecular Biology, Cambridge, UK
| | - Gils Mj van
- Department of Medical Microbiology, Academic Medical Center, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, Netherlands
| | - Kgc Smith
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - J R Bradley
- Department of Medicine, University of Cambridge, Cambridge, UK
- NIHR Cambridge Clinical Research Facility, Cambridge, UK
| | - C Smith
- Department of Virology, Cambridge University NHS Hospitals Foundation Trust
| | - R Doffinger
- Department of Clinical Biochemistry and Immunology, Addenbrookes Hospital
| | - L Ceron-Gutierrez
- Department of Clinical Biochemistry and Immunology, Addenbrookes Hospital
| | - G Barcenas-Morales
- Department of Clinical Biochemistry and Immunology, Addenbrookes Hospital
| | - D D Pollock
- Biochemistry and Molecular Genetics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - R A Goldstein
- Division of Infection and Immunity, University College London, London, UK
| | - A Smielewska
- Department of Pathology, University of Cambridge, Cambridge
- Department of Virology, Cambridge University NHS Hospitals Foundation Trust
| | - J P Skittrall
- Department of Infectious Diseases, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
- Department of Applied Mathematics and Theoretical Physics, University of Cambridge, UK
- Clinical Microbiology and Public Health Laboratory, Addenbrookes' Hospital, Cambridge, UK
| | - T Gouliouris
- Department of Infectious Diseases, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - I G Goodfellow
- Department of Pathology, University of Cambridge, Cambridge
| | - E Gkrania-Klotsas
- Department of Infectious Diseases, Cambridge University NHS Hospitals Foundation Trust, Cambridge, UK
| | - Cjr Illingworth
- Department of Applied Mathematics and Theoretical Physics, University of Cambridge, UK
- MRC Biostatistics Unit, University of Cambridge, Cambridge, UK
| | - L E McCoy
- Division of Infection and Immunity, University College London, London, UK
| | - R K Gupta
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Cambridge, UK
- Department of Medicine, University of Cambridge, Cambridge, UK
- Africa Health Research Institute, Durban, South Africa
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23
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Taneja P, Manjuladevi V, Gupta RK, Kumar S, Gupta KK. Facile ultrathin film of silver nanoparticles for bacteria sensing. Colloids Surf B Biointerfaces 2020; 196:111335. [PMID: 32927339 DOI: 10.1016/j.colsurfb.2020.111335] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 12/29/2022]
Abstract
Silver nanoparticles (AgNPs) exhibit excellent anti-microbial and bactericidal properties. Due to bacterial abhorrence for AgNPs, it is difficult to develop a label-free, sensitive and low-cost bacteria sensor using them. In the present article, we report that an ultrathin and uniform Langmuir-Schaefer (LS) film of AgNPs can be employed for bacteria sensing effectively as compared to that of non-uniform and randomly distributed AgNPs in spin coated film. The uniformly distributed AgNPs in the LS film offer a relatively larger contact surface for bacteria as compared to that of spin coated film. Due to higher contact surface, adsorption of the bacteria on LS film is strongly preferable as compared to that of spin coated film leading to an enhanced sensing performance of the LS film than that of spin coated film. Soil bacteria was grown by the standard protocol and were utilized as model system for bacteria sensing application. The soil bacteria sensing was done by monitoring the piezoresponse and dissipation parameters using a quartz crystal microbalance, simultaneously. Our study indicates that the LS film of AgNPs not only facilitates the adsorption of the soil bacteria but also kills them.
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Affiliation(s)
- Parul Taneja
- Department of Physics, Birla Institute of Technology and Science, Pilani (BITS Pilani), Rajasthan 333031, India
| | - V Manjuladevi
- Department of Physics, Birla Institute of Technology and Science, Pilani (BITS Pilani), Rajasthan 333031, India
| | - R K Gupta
- Department of Physics, Birla Institute of Technology and Science, Pilani (BITS Pilani), Rajasthan 333031, India.
| | - Sandeep Kumar
- Raman Research Institute, Sadashivanagar, Bangalore 560080, India; Department of Chemistry, Nitte Meenakshi Institute of Technology, Bangalore 560064, India
| | - K K Gupta
- Department of Electrical and Electronics Engineering, Birla Institute of Technology and Science, Pilani (BITS Pilani), Rajasthan 333031, India
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24
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Joshi A, Manjuladevi V, Gupta RK, Kumar S. Morphological transformation in the supramolecular assembly of discotic liquid crystal molecules using silver nanoparticles and its sensing application. Nanotechnology 2020; 31:365605. [PMID: 32422619 DOI: 10.1088/1361-6528/ab93eb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Triphenylene based discotic liquid crystal (TP) molecules are rich in π-electrons which facilitate π-stacking interaction of the molcules leading to formation of one dimensional nanowires. These nanowires can assemble to form nanoribbons due to a lateral cohesive force among the nanowires. The flat nanoribons undergo a morphological transformation due to incorporation of silver nanoparticles (SNP) into the matrix of TP molecules. The presence of SNP induces a chiral twisting to the nanoribbons and therefore the flat nanoribbons transform into a helical nanoribbon structure. The global chiral structure exhibited by the composition of achiral constituents is due to the creation of topological defects like disclination and dislocation. These defects can lead to a geometrical frustration in the nanoribbons which relaxes with the formation of twisted helical nanoribbons. A minor change in morphology of the supramolecular assembly can have a remarkable effect on the physicochemical properties of the nanoribbons. In this article, we demonstrate that even a minor change in the geometry of aliphatic chains on the surface of nanoribbons can be employed for sensing organic solvents such as acetone and ethanol. The sensing was performed at room temperature. Relative humidity has no effect on the sensing response.
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Affiliation(s)
- Ashutosh Joshi
- Department of Physics, Birla Institute of Technology and Science, Pilani (BITS Pilani), Rajasthan, 333031, India
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25
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Gregson J, Rhee SY, Datir R, Pillay D, Perno CF, Derache A, Shafer RS, Gupta RK. Human Immunodeficiency Virus-1 Viral Load Is Elevated in Individuals With Reverse-Transcriptase Mutation M184V/I During Virological Failure of First-Line Antiretroviral Therapy and Is Associated With Compensatory Mutation L74I. J Infect Dis 2020; 222:1108-1116. [PMID: 31774913 PMCID: PMC7459140 DOI: 10.1093/infdis/jiz631] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 11/26/2019] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND M184V/I cause high-level lamivudine (3TC) and emtricitabine (FTC) resistance and increased tenofovir disoproxil fumarate (TDF) susceptibility. Nonetheless, 3TC and FTC (collectively referred to as XTC) appear to retain modest activity against human immunodeficiency virus-1 with these mutations possibly as a result of reduced replication capacity. In this study, we determined how M184V/I impacts virus load (VL) in patients failing therapy on a TDF/XTC plus nonnucleoside reverse-transcriptase inhibitor (NNRTI)-containing regimen. METHODS We compared VL in the absence and presence of M184V/I across studies using random effects meta-analysis. The effect of mutations on virus reverse-transcriptase activity and infectiousness was analyzed in vitro. RESULTS M184I/V was present in 817 (56.5%) of 1445 individuals with virologic failure (VF). Virus load was similar in individuals with or without M184I/V (difference in log10 VL, 0.18; 95% confidence interval, .05-.31). CD4 count was lower both at initiation of antiretroviral therapy and at VF in participants who went on to develop M184V/I. L74I was present in 10.2% of persons with M184V/I but absent in persons without M184V/I (P < .0001). In vitro, L74I compensated for defective replication of M184V-mutated virus. CONCLUSIONS Virus loads were similar in persons with and without M184V/I during VF on a TDF/XTC/NNRTI-containing regimen. Therefore, we did not find evidence for a benefit of XTC in the context of first-line failure on this combination.
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Affiliation(s)
- J Gregson
- Department of Biostatistics, London School of Hygiene and Tropical Medicine, London, United Kingdom
| | - S Y Rhee
- Department of Medicine, Stanford University, Stanford, California, USA
| | - R Datir
- Division of Infection and Immunity, UCL, London, United Kingdom
| | - D Pillay
- Division of Infection and Immunity, UCL, London, United Kingdom
- Africa Health Research Institute, Durban, South Africa
| | - C F Perno
- Department of Oncology and Haematoncology, University of Milan, Milan, Italy
| | - A Derache
- Africa Health Research Institute, Durban, South Africa
| | - R S Shafer
- Department of Medicine, Stanford University, Stanford, California, USA
| | - R K Gupta
- Africa Health Research Institute, Durban, South Africa
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
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26
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Datir R, El Bouzidi K, Dakum P, Ndembi N, Gupta RK. Baseline PI susceptibility by HIV-1 Gag-protease phenotyping and subsequent virological suppression with PI-based second-line ART in Nigeria. J Antimicrob Chemother 2020; 74:1402-1407. [PMID: 30726945 PMCID: PMC6477990 DOI: 10.1093/jac/dkz005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Revised: 12/14/2018] [Accepted: 12/31/2018] [Indexed: 12/24/2022] Open
Abstract
Objectives Previous work showed that gag-protease-derived phenotypic susceptibility to PIs differed between HIV-1 subtype CRF02_AG/subtype G-infected patients who went on to successfully suppress viral replication versus those who experienced virological failure of lopinavir/ritonavir monotherapy as first-line treatment in a clinical trial. We analysed the relationship between PI susceptibility and outcome of second-line ART in Nigeria, where subtypes CRF02_AG/G dominate the epidemic. Methods Individuals who experienced second-line failure with ritonavir-boosted PI-based ART were matched (by subtype, sex, age, viral load, duration of treatment and baseline CD4 count) to those who achieved virological response (‘successes’). Successes were defined by viral load <400 copies of HIV-1 RNA/mL by week 48. Full-length Gag-protease was amplified from patient samples for in vitro phenotypic susceptibility testing, with PI susceptibility expressed as IC50 fold change (FC) relative to a subtype B reference strain. Results The median (IQR) lopinavir IC50 FC was 4.04 (2.49–7.89) for virological failures and 4.13 (3.14–8.17) for virological successes (P = 0.94). One patient had an FC >10 for lopinavir at baseline and experienced subsequent virological failure with ritonavir-boosted lopinavir as the PI. There was no statistically significant difference in single-round replication efficiency between the two groups (P = 0.93). There was a moderate correlation between single-round replication efficiency and FC for lopinavir (correlation coefficient 0.32). Conclusions We found no impact of baseline HIV-1 Gag-protease-derived phenotypic susceptibility on outcomes of PI-based second-line ART in Nigeria.
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Affiliation(s)
- R Datir
- Division of Infection and Immunity, University College London, London, UK
| | - K El Bouzidi
- Division of Infection and Immunity, University College London, London, UK
| | - P Dakum
- Institute of Human Virology, Abuja, Nigeria
| | - N Ndembi
- Institute of Human Virology, Abuja, Nigeria
| | - R K Gupta
- Division of Infection and Immunity, University College London, London, UK.,Africa Health Research Institute, Durban, South Africa
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27
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Affiliation(s)
- P K Majumdar
- Department of Orthopaedics, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
| | - R K Gupta
- Department of Orthopaedics, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
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28
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Gupta RK, Khiyani R, Majumdar KP, Potalia R. Cubitus Valgus with Tardy Ulnar Nerve Palsy - Functional Outcome of Milch Osteotomy without Anterior Transposition of Ulnar Nerve. Malays Orthop J 2020; 14:120-125. [PMID: 32983386 PMCID: PMC7513644 DOI: 10.5704/moj.2007.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Introduction: To assess the results of Milch osteotomy in terms of deformity correction and functional outcome in the absence of ulnar nerve transposition. Material and Methods: Nine patients with cubitus valgus deformity greater than 20° with tardy ulnar nerve palsy (TUNP) operated between 2012 and 2017 were evaluated. Correction by Milch osteotomy and fixation was done in each case, without osteosynthesis of the non-union lateral condyle humerus or transposition of the ulnar nerve. At one year post-operatively, carrying angle, elbow function (Mayo Elbow Performance Score) and ulnar nerve symptoms were assessed. Results: The mean carrying angle pre-operatively was 30.8° on the affected side which improved to a mean of 8.3° postoperatively with an average correction of 22.5°. The mean elbow flexion pre-operatively was 129.4° which improved to 133.3° post-operatively. The mean preoperative MEP score was 76.7 which improved to a mean of 92.2 post-operatively (p < 0.01). TUNP recovered completely in all the patients. Conclusion: Milch osteotomy is an effective procedure for cubitus valgus deformity correction and its associated tardy ulnar nerve palsy without a decrease in elbow ROM. Correction of even severe valgus deformities without concurrent anterior transposition of the ulnar nerve is likely to improve ulnar nerve symptoms.
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Affiliation(s)
- R K Gupta
- Department of Orthopaedics, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
| | - R Khiyani
- Department of Orthopaedics, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
| | - K P Majumdar
- Department of Orthopaedics, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
| | - R Potalia
- Department of Orthopaedics, Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, India
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29
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Guragain D, Zequine C, Poudel T, Neupane D, Gupta RK, Mishra SR. Facile Synthesis of Bio-Templated Tubular Co₃O₄ Microstructure and Its Electrochemical Performance in Aqueous Electrolytes. J Nanosci Nanotechnol 2020; 20:3182-3194. [PMID: 31635663 DOI: 10.1166/jnn.2020.17414] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Template-assisted facile synthesis of tubular Co₃O₄ microstructures and its electrochemical performance was studied to understand its use as a potential electrode material for supercapacitors. Tubular porous Co₃O₄ microstructures were synthesized using cotton fibers as bio-template. The as-obtained templated Co₃O₄ structure inherits the morphology and microstructure of cotton fiber. The electrochemical performance of the electrode made up of tubular Co₃O₄ structure was evaluated in 3 M KOH, NaOH, and LiOH aqueous electrolytes. The large-surface-area of tubular Co₃O₄ microstructure has a noticeable pseudocapacitive performance with a capacitance of 401 F/g at 1 A/g and 828 F/g at 2 mV/s, a Coulombic efficiency averaging ~100%, and excellent cycling stability with capacitance retention of about 80% after 5,000 cycles. Overall, the tubular Co₃O₄ microstructure displayed superior electrochemical performance in 3 M KOH electrolyte with peak power density reaching 5,500 W/kg and energy density exceeding 22 Wh/kg. The superior performance of tubular Co₃O₄ microstructure electrode is attributed to its high surface area and adequate pore volume distribution, which allows effective redox reaction and diffusion of hydrated ions. The facile synthesis method can be adapted for preparing various metal oxide microstructures for possible applications in catalysis, electrochemical, sensors, and fuel cells applications.
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Affiliation(s)
- D Guragain
- Department of Physics and Materials Science, The University of Memphis, Memphis 38152, TN, USA
| | - C Zequine
- Department of Chemistry, Pittsburg State University, Pittsburg 66762, KS, USA
| | - T Poudel
- Department of Physics and Materials Science, The University of Memphis, Memphis 38152, TN, USA
| | - D Neupane
- Department of Engineering Technology, The University of Memphis, Memphis 38152, TN, USA
| | - R K Gupta
- Department of Chemistry, Pittsburg State University, Pittsburg 66762, KS, USA
| | - S R Mishra
- Department of Physics and Materials Science, The University of Memphis, Memphis 38152, TN, USA
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30
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Guragain D, Zequine C, Poudel T, Neupane D, Gupta RK, Mishra SR. Influence of Urea on the Synthesis of NiCo₂O₄ Nanostructure: Morphological and Electrochemical Studies. J Nanosci Nanotechnol 2020; 20:2526-2537. [PMID: 31492272 DOI: 10.1166/jnn.2020.17366] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The widespread use of miniature electronic devices calls for energy-dense storage strategies. The supercapacitor-based energy storage devices with high areal capacitance are desired energy storage alternative. It is still a challenge to fabricate supercapacitor-based energy devices with consistent performance. The porous metal oxides with large areal capacitance are desired materials for electrode, but there exists a limited understanding of the influence of synthesis parameters on microstructural properties, which largely govern their electrochemical performance. In the present work, hierarchal spinel nickel cobaltite (NiCo₂O₄) nanostructures were synthesized in the presence of the varying amount of hydrolyzing agent via a simple hydrothermal method coupled with a simple post-annealing process. This work focuses on understanding the influence of hydrolyzing agent in controlling the microstructure and hence ensuing electrochemical properties of the NiCo₂O₄ based electrode. Based on the urea hydrolyzing content, the as synthesized NiCo₂O₄ nanostructure varied from the rod, plate to nanoflower. The mesoporous nanostructures, with urea content 1.49 gm, exhibit a sizeable BJH surface area (79.2 m² g-1) and high mesopore volume (0.140 cm³ g-1). Remarkably, the NiCo₂O₄ nanoflower shows high specific capacitance of 3143.451 F/g at 2 mV/s scan rate, 1264.5 F/g at 1 A/g current density, energy density of 56 Wh/kg and power density of 8,400 W/kg in 3 M KOH electrolyte. The capacitance loss after 5000 cycles is 48% at the current density of 10 A/g, indicating their excellent cycling stability. The impressive electrocatalytic activity is largely ascribed to the high intrinsic electronic conductivity, superior mesoporous nanostructures and rich surface Ni active species of the NiCo₂O₄ materials, which can largely boost the interfacial electroactive sites and charge transfer rates indicating promising applications as electrodes in future supercapacitors.
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Affiliation(s)
- D Guragain
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - C Zequine
- Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA
| | - T Poudel
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - D Neupane
- Engineering Technology, The University of Memphis, Memphis, TN 38152, USA
| | - R K Gupta
- Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA
| | - S R Mishra
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
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31
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Ooi MB, Li Z, Robison RK, Wang D, Anderson AG, Zwart NR, Bakhru A, Nagaraj S, Mathews T, Hey S, Koonen JJ, Dimitrov IE, Friel HT, Lu Q, Obara M, Saha I, Wang H, Wang Y, Zhao Y, Temkit M, Hu HH, Chenevert TL, Togao O, Tkach JA, Nagaraj UD, Pinho MC, Gupta RK, Small JE, Kunst MM, Karis JP, Andre JB, Miller JH, Pinter NK, Pipe JG. Spiral T1 Spin-Echo for Routine Postcontrast Brain MRI Exams: A Multicenter Multireader Clinical Evaluation. AJNR Am J Neuroradiol 2020; 41:238-245. [PMID: 32029467 DOI: 10.3174/ajnr.a6409] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Accepted: 12/10/2019] [Indexed: 02/02/2023]
Abstract
BACKGROUND AND PURPOSE Spiral MR imaging has several advantages compared with Cartesian MR imaging that can be leveraged for added clinical value. A multicenter multireader study was designed to compare spiral with standard-of-care Cartesian postcontrast structural brain MR imaging on the basis of relative performance in 10 metrics of image quality, artifact prevalence, and diagnostic benefit. MATERIALS AND METHODS Seven clinical sites acquired 88 total subjects. For each subject, sites acquired 2 postcontrast MR imaging scans: a spiral 2D T1 spin-echo, and 1 of 4 routine Cartesian 2D T1 spin-echo/TSE scans (fully sampled spin-echo at 3T, 1.5T, partial Fourier, TSE). The spiral acquisition matched the Cartesian scan for scan time, geometry, and contrast. Nine neuroradiologists independently reviewed each subject, with the matching pair of spiral and Cartesian scans compared side-by-side, and scored on 10 image-quality metrics (5-point Likert scale) focused on intracranial assessment. The Wilcoxon signed rank test evaluated relative performance of spiral versus Cartesian, while the Kruskal-Wallis test assessed interprotocol differences. RESULTS Spiral was superior to Cartesian in 7 of 10 metrics (flow artifact mitigation, SNR, GM/WM contrast, image sharpness, lesion conspicuity, preference for diagnosing abnormal enhancement, and overall intracranial image quality), comparable in 1 of 10 metrics (motion artifacts), and inferior in 2 of 10 metrics (susceptibility artifacts, overall extracranial image quality) related to magnetic susceptibility (P < .05). Interprotocol comparison confirmed relatively higher SNR and GM/WM contrast for partial Fourier and TSE protocol groups, respectively (P < .05). CONCLUSIONS Spiral 2D T1 spin-echo for routine structural brain MR imaging is feasible in the clinic with conventional scanners and was preferred by neuroradiologists for overall postcontrast intracranial evaluation.
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Affiliation(s)
- M B Ooi
- From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)
| | - Z Li
- Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)
| | - R K Robison
- Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)
| | - D Wang
- Phoenix, Arizona; Mayo Clinic (D.W., J.G.P.)
| | - A G Anderson
- Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)
| | - N R Zwart
- Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)
| | - A Bakhru
- Buffalo, New York; Philips Healthcare (A.B., S.N., T.M.)
| | - S Nagaraj
- Buffalo, New York; Philips Healthcare (A.B., S.N., T.M.)
| | - T Mathews
- Buffalo, New York; Philips Healthcare (A.B., S.N., T.M.)
| | - S Hey
- Bangalore, India; Philips Healthcare, (S.H., J.J.K.), Best, the Netherlands
| | - J J Koonen
- Bangalore, India; Philips Healthcare, (S.H., J.J.K.), Best, the Netherlands
| | - I E Dimitrov
- From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)
| | - H T Friel
- From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)
| | - Q Lu
- From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)
| | - M Obara
- Philips Healthcare (M.O.), Tokyo, Japan
| | - I Saha
- Philips Healthcare (I.S.), Gurgaon, India
| | - H Wang
- From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)
| | - Y Wang
- From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)
| | - Y Zhao
- From Philips Healthcare (M.B.O., I.E.D., H.T.F., Q.L., H.W., Y.W., Y.Z.)
| | - M Temkit
- Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)
| | - H H Hu
- Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)
| | - T L Chenevert
- University of Michigan (T.L.C.), Ann Arbor, Michigan
| | - O Togao
- Kyushu University Hospital (O.T.), Kyushu, Japan
| | - J A Tkach
- Cincinnati Children's Hospital (J.A.T., U.D.N.), Cincinnati, Ohio
| | - U D Nagaraj
- Cincinnati Children's Hospital (J.A.T., U.D.N.), Cincinnati, Ohio
| | - M C Pinho
- University of Texas Southwestern Medical Center (M.C.P.), Dallas, Texas
| | - R K Gupta
- Fortis Memorial Research Institute (R.K.G.), Gurgaon, India
| | - J E Small
- Lahey Hospital and Medical Center (J.E.S., M.M.K.), Burlington, Massachusetts
| | - M M Kunst
- Lahey Hospital and Medical Center (J.E.S., M.M.K.), Burlington, Massachusetts
| | - J P Karis
- Gainesville, Florida; Barrow Neurological Institute (Z.L., A.G.A., N.R.Z., J.P.K.)
| | - J B Andre
- University of Washington (J.B.A.), Seattle, Washington
| | - J H Miller
- Rochester, Minnesota; Phoenix Children's Hospital (R.K.R., M.T., H.H.H., J.H.M.)
| | - N K Pinter
- Phoenix, Arizona; DENT Neurologic Institute (N.K.P.)
| | - J G Pipe
- Phoenix, Arizona; Mayo Clinic (D.W., J.G.P.)
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Abstract
The rising prevalence of HIV drug resistance (HIVDR) could threaten gains made in combating the HIV epidemic and compromise the 90-90-90 target proposed by United Nations Programme on HIV/AIDS (UNAIDS) to have achieved virological suppression in 90% of all persons receiving antiretroviral therapy (ART) by the year 2020. HIVDR has implications for the persistence of HIV, the selection of current and future ART drug regimens, and strategies of vaccine and cure development. Focusing on drug classes that are in clinical use, this Review critically summarizes what is known about the mechanisms the virus utilizes to escape drug control. Armed with this knowledge, strategies to limit the expansion of HIVDR are proposed.
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Affiliation(s)
- D A Collier
- Division of Infection and Immunity, University College London, London, UK
| | - C Monit
- Division of Infection and Immunity, University College London, London, UK
| | - R K Gupta
- Department of Medicine, University of Cambridge, Cambridge, UK.
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33
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Abstract
Background The upper aerodigestive tract (UAT) includes the nose and paranasal sinuses, oral cavity, pharynx, larynx, and salivary glands. Cancers of the UAT constitute approximately 4% of all malignancies. In this study, the varied nature of the UAT cancers was studied to find out their incidence, etiology, and clinicopathological correlations. Materials and Methods This prospective, observational, and clinicopathological study was conducted on 100 patients who were presented at outdoor in the Department of ENT, Government Medical College/Rajindra Hospital, Patiala, Punjab, India, from October 2016 to October 2018. Proven cases of UAT cancers were taken up and reviewed to gather data on multiple clinicopathological variables, such as age, sex, predisposing factors, and site of pathology. Histopathological differentiation was noted after conducting a biopsy. Results Most patients of UAT cancers were in the age group of 40-70 years. Maximum incidence was among males (82%) compared to females (28%). The most common predisposing factor was alcohol + smoking (28%), followed by alcohol + chewing tobacco (25%). The most common symptom in the oral cavity was ulcer and odynophagia (38%) each. In oropharyngeal cancers, dysphagia (92%) was the most common symptom. In laryngeal cancers, dyspnea (68%) and hoarseness of voice (32%) were the most common. The most common site involved in UAT cancers was the oral cavity (31%), followed by oropharynx (28%), larynx (22%), hypopharynx (7%), and salivary gland (5%). The most common histopathological type was squamous cell carcinoma (SCC) (90%). Most of the ulceroproliferative and exophytic growth was moderately differentiated SCC on histopathology. Conclusion Studies are essential for education and awareness aimed at reducing exposure to habit-forming substances.
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Affiliation(s)
- G Kaur
- Department of ENT, Government Medical College and Hospital, Patiala, Punjab, India
| | - M Singh
- Department of ENT, Government Medical College and Hospital, Patiala, Punjab, India
| | - M Kaur
- Department of ENT, Government Medical College and Hospital, Patiala, Punjab, India
| | - B Singh
- Department of ENT, Government Medical College and Hospital, Patiala, Punjab, India
| | - R K Gupta
- Department of Pathology, Government Medical College and Hospital, Patiala, Punjab, India
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Yograj S, Bhat AN, Gupta RK, Gupta G, Kalsotra L. Role of basic sciences in making of a clinician: Perspectives of medical students from North India. J Educ Health Promot 2019; 8:171. [PMID: 31867356 PMCID: PMC6796609 DOI: 10.4103/jehp.jehp_66_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 08/04/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Advances in scientific research necessitates updating of the curriculum and the Medical Council of India now Board of Governors have proposed a new competency-based undergraduate curriculum for the Indian Medical Graduate. The authors wanted the views of medical students about basic sciences teaching in the form of feedback, their perceptions and attitudes toward the basic sciences and their opinions about the relevance of these subjects, and finally any ideas about improvement in teaching of basic sciences. MATERIALS AND METHODS The present cross-sectional study was conducted in two medical colleges of Northern India and 250 medical students from each medical school were the study participants. Students of the 1st year were not included, but interns were included. A pretested questionnaire having twenty questions with answers in the form of "yes" and "no" was used. Chi-square was the test of significance. RESULTS Almost all the participants considered the basic sciences as an integral part of medical curriculum and a higher number of Government Medical College respondents opined that their knowledge made it easier to understand clinical subjects (P < 0.05). However, higher proportion of ASCOMS (Acharya Shri Chandra College Medical Sciences) of respondents emphasized that the focus should be on clinical subjects and that current student-teacher ratio be increased (P < 0.05). Majority of the respondents labeled Anatomy having the immense syllabus, while Physiology was designated as more relevant and having a better recall during clinical discourse (P > 0.05). CONCLUSION Basic sciences lay strong foundation for subsequent clinical learning. Medical education is best taught with hybrid use of lectures, tutorial, group discussions, audio-visual aids, and integrated teaching. The new proposed competency-based curriculum and the Attitudes, Ethics and Communication Module are likely to improve the overall medical education and health-care scenario.
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Affiliation(s)
- Sabita Yograj
- Department of Physiology, Government Medical College, Kathua, Jammu and Kashmir, India
| | - Anjali Nadir Bhat
- Department of Physiology, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Rajiv Kumar Gupta
- Department of Community Medicine, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Geetika Gupta
- Department of Physiology, Acharya Shri Chandra Medical College and Hospital, Sidhra, Jammu, Jammu and Kashmir, India
| | - Leela Kalsotra
- Department of Physiology, Acharya Shri Chandra Medical College and Hospital, Sidhra, Jammu, Jammu and Kashmir, India
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Winter JR, Adamu AL, Gupta RK, Stagg HR, Delpech V, Abubakar I. Tuberculosis infection and disease in people living with HIV in countries with low tuberculosis incidence. Int J Tuberc Lung Dis 2019; 22:713-722. [PMID: 29914596 DOI: 10.5588/ijtld.17.0672] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
In countries with low tuberculosis (TB) incidence, TB is concentrated in vulnerable populations, including people living with the human immunodeficiency virus (PLHIV), who have a substantially greater risk of TB than people without HIV. We searched PubMed, EMBASE and Web of Science for studies evaluating the risk factors for latent tuberculous infection (LTBI) or active TB in PLHIV in countries with TB incidence 10 per 100 000 population. Due to the number of risk factors evaluated and heterogeneity in study designs, we present summary data and a narrative synthesis. We included 45 studies: 17 reported data on the risk factors for LTBI and 32 on active TB. Black, Asian or Hispanic ethnicity, birth or long-term residence in a country with high TB incidence, and HIV acquisition via injecting drug use (IDU) or heterosexual sex were strong predictors of both LTBI and active TB. History of contact, a greater degree of immunosuppression at diagnosis or higher viral load increased the TB risk. Early HIV diagnosis to allow timely initiation of antiretroviral therapy is essential for the prevention of TB in PLHIV. Screening and treating PLHIV for LTBI to reduce the risk of progression to active TB disease should also be considered to further reduce the burden of active TB in low TB incidence settings. Research to support the expansion of TB and HIV prevention and treatment globally is essential to eliminate TB in low-incidence settings.
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Affiliation(s)
- J R Winter
- Institute for Global Health, University College London, UK
| | - A L Adamu
- Department of Community Medicine, Bayero University, Kano, Nigeria
| | - R K Gupta
- Institute for Global Health, University College London, UK
| | - H R Stagg
- Institute for Global Health, University College London, UK
| | - V Delpech
- National Infections Service, Public Health England, London, UK
| | - I Abubakar
- Institute for Global Health, University College London, UK
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Ghimire M, Bhoyate S, Gupta RK, Shen X, Perez F, Alam J, Mishra SR. Physical Properties and Theoretical Study of Ni xCo 3-xO₄ (0 ≤ x ≤ 1.5) Nanostructures as High-Performance Electrode Materials for Supercapacitors. J Nanosci Nanotechnol 2019; 19:4481-4494. [PMID: 30913739 DOI: 10.1166/jnn.2019.16644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Study evaluates the electrochemical performance of off-stoichiometric NixCo3-xO₄ compounds. The off-stoichiometric samples were prepared via hydrothermal technique by systematically varying Co/Ni molar ratio. Physical and electrochemical properties of NixCo3-xO₄ were observed to be stoichiometry dependent. The increase in Ni/Co ratio in NixCo3-xO₄ leads to the morphological transformation from fibrous bundles to urchin like nanospheres with a concomitant increase in the surface area reaching up to 132 m2/g. The optimal specific capacitance of 225 F/g at a current density of 1 A/g and 524 F/g at 10 mV/s scan rate was observed of x 1.0 sample, with an increased retention capacity ∼120% measured at 2 A/g current density. The hybrid density functional theory (DFT) calculations of the electronic density of states identified Ni1.0Co₂O₄ with optimal band-gap of 2.38 eV with an expectation of displaying higher electrocapacitive performance. Experimentally, Ni0.92Co2.08O₄ displayed superior electrocapacitive performance among all Ni/Co ratio in NixCo3-xO₄. The DFT study also predicted Ni preference to the octahedral site, which is in-line with the observed increase in ferromagnetic nature, decreased lattice parameter, and increased structural disorder with increasing Ni/Co ratio. The improved electrochemical performance of NixCo3-xO₄ (x > 0) is attributed to the mesoporous hierarchical structure, with a high electroactive surface which can effectively improve structural stability, and reduce the ionic and electron diffusion length. Compared to the pure Co₃O₄, the reduction of Co content in NixCo3-xO₄ is desired due to the high cost and toxicity of Co element.
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Affiliation(s)
- M Ghimire
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - S Bhoyate
- Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA
| | - R K Gupta
- Department of Chemistry, Pittsburg State University, Pittsburg, KS 66762, USA
| | - X Shen
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - F Perez
- Integrated Microscopy Center, IMC, The University of Memphis, Memphis, TN 38152, USA
| | - J Alam
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - S R Mishra
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
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Shereena EA, Gupta RK, Bennett CN, Sagar KJV, Rajeswaran J. EEG Neurofeedback Training in Children With Attention Deficit/Hyperactivity Disorder: A Cognitive and Behavioral Outcome Study. Clin EEG Neurosci 2019; 50:242-255. [PMID: 30453757 DOI: 10.1177/1550059418813034] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Attention deficit/hyperactivity disorder (ADHD) is a highly prevalent childhood disorder with symptoms of inattention, impulsivity, and hyperactivity. EEG neurofeedback training (NFT) is a new intervention modality based on operant conditioning of brain activity, which helps reduce symptoms of ADHD in children. METHODS AND PROCEDURES To examine the efficacy of NFT in children with ADHD, an experimental longitudinal design with pre-post comparison was adopted. A total of 30 children in the age range of 6 to 12 years diagnosed as ADHD with or without comorbid conditions were assigned to treatment group (TG; n = 15) and treatment as usual group (TAU; n = 15). TG received EEG-NFT along with routine clinical management and TAU received routine clinical management alone. Forty sessions of theta/beta NFT at the C3 scalp location, 3 to 4 sessions in a week for a period of 3.5 to 5 months were given to children in TG. Children were screened using sociodemographic data and Binet-Kamat test of intelligence. Pre-and postassessment tools were neuropsychological tests and behavioral scales. Follow-up was carried out on 8 children in TG using parent-rated behavioral measures. RESULTS Improvement was reported in TG on cognitive functions (sustained attention, verbal working memory, and response inhibition), parent- and teacher-rated behavior problems and on academic performance rated by teachers. Follow-up of children who received NFT showed sustained improvement in ADHD symptoms when assessed 6 months after receiving NFT. CONCLUSION The present study suggests that NFT is an effective method to enhance cognitive deficits and helps reduce ADHD symptoms and behavior problems. Consequently, academic performance was found to be improved in children with ADHD. Improvement in ADHD symptoms induced by NFT were maintained at 6-month follow-up in children with ADHD.
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Affiliation(s)
- E A Shereena
- 1 National Institute of Mental Health & Neuro Sciences, Bengaluru, Karnataka, India
| | - R K Gupta
- 1 National Institute of Mental Health & Neuro Sciences, Bengaluru, Karnataka, India
| | - C N Bennett
- 2 Department of Psychology, Christ (Deemed to be University), Bengaluru, Karnataka, India
| | - K J V Sagar
- 1 National Institute of Mental Health & Neuro Sciences, Bengaluru, Karnataka, India
| | - J Rajeswaran
- 1 National Institute of Mental Health & Neuro Sciences, Bengaluru, Karnataka, India
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Gupta RK, Lipman M, Story A, Hayward A, de Vries G, van Hest R, Erkens C, Rangaka MX, Abubakar I. Active case finding and treatment adherence in risk groups in the tuberculosis pre-elimination era. Int J Tuberc Lung Dis 2019; 22:479-487. [PMID: 29663951 DOI: 10.5588/ijtld.17.0767] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Vulnerable populations, including homeless persons, high-risk drug and alcohol users, prison inmates and other marginalised populations, contribute a disproportionate burden of tuberculosis (TB) cases in low-incidence settings. Drivers of this disease burden include an increased risk of both TB transmission in congregate settings, and progression from infection to active disease. Late diagnosis and poor treatment completion further propagate the epidemic and fuel the acquisition of drug resistance. These groups are therefore a major priority for TB control programmes in low-incidence settings. Targeted strategies include active case finding (ACF) initiatives and interventions to improve treatment completion, both of which should be tailored to local populations. ACF usually deploys mobile X-ray unit screening, which allows sensitive, high-throughput screening with immediate availability of results. Such initiatives have been found to be effective and cost-effective, and associated with reductions in proxy measures of transmission in hard-to-reach groups. The addition of point-of-care molecular diagnostics and automated X-ray readers may further streamline the screening pathway. There is little evidence to support interventions to improve adherence among these risk groups. Such approaches include enhanced case management and directly observed treatment, while video-observed therapy (currently under evaluation) appears to be a promising tool for the future. Integrating outreach services to include both case detection and case-management interventions that share a resource infrastructure may allow cost-effectiveness to be maximised. Integrating screening and treatment for other diseases that are prevalent among targeted risk groups into TB outreach interventions may further improve cost-effectiveness. This article reviews the existing literature, and highlights priorities for further research.
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Affiliation(s)
- R K Gupta
- Institute for Global Health, University College London (UCL), London, UK
| | - M Lipman
- UCL-TB and UCL Respiratory, UCL, London, Royal Free London National Health Service Foundation Trust, London, UK
| | - A Story
- Find & Treat, UCL Hospitals, London, UK
| | - A Hayward
- Institute of Epidemiology and Health Care, UCL, London, UK
| | - G de Vries
- KNCV Tuberculosis Foundation, The Hague, National Institute for Public Health and the Environment, Bilthoven, The Netherlands
| | - R van Hest
- Department of Tuberculosis Control, Regional Public Health Service Groningen, Groningen, The Netherlands; Department of Pulmonary Diseases and Tuberculosis, University Medical Centre Groningen, Groningen, The Netherlands
| | - C Erkens
- KNCV Tuberculosis Foundation, The Hague, The Netherlands
| | - M X Rangaka
- Institute for Global Health, University College London (UCL), London, UK
| | - I Abubakar
- Institute for Global Health, University College London (UCL), London, UK
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Abstract
The World Health Organization defined palliative care as “an approach that improves the quality of life of patients and their families facing the problems associated with life threatening illness, through the prevention and relief of suffering by means of early identification and impeccable assessment and treatment of pain and other problems, physical, psychosocial, and spiritual. The patient centric primary care model (PCCM) promises to provide a solution to control these health-care challenges. The model is largely based on the chronic care model (CCM) and the model developed by the Organized Medicine Academic Guild (OMAG) for delivering health care in India.
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Affiliation(s)
- Sunil Kumar Raina
- Department of Community Medicine, Dr. RP Govt. Medical College, Tanda, Himachal Pradesh, India
| | - Raman Kumar
- President, Academy of Family Physicians of India, New Delhi, India
| | - Rajiv Kumar Gupta
- Department of Community Medicine, Government Medical College, Jammu, Jammu and Kashmir, India
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Kumari R, Langer B, Jandial S, Gupta RK, Raina SK, Singh P. Psycho-social health problems: Prevalence and associated factors among students of professional colleges in Jammu. Indian J Community Health 2019. [DOI: 10.47203/ijch.2019.v31i01.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Background: Psycho-social health problems are an area of concern worldwide especially among students pursuing professional courses. The competition for grades, carrier insecurity often contribute to various emotional disturbances such as stress, anxiety and depression. Aims and Objectives: to determine the prevalence of stress, anxiety and depression in students of two main professional streams (medical & engineering) and to find out various factors associated with them. Material and methods: A cross-sectional study was conducted among students of medical and engineering stream using DASS 42 scale. Further a self administered, pretested questionnaire was used to elucidate information on socio-demographic and personal characteristics. Results: Out of a total of 480 students (300 MBBS and 180 Engineering), prevalence of stress, anxiety and depression in medical & engineering students was 47.6 %, 68.6%, 43.7% and 41.1%, 71.1 % & 40.0 % respectively. On Multiple Regression analysis, relationship with family members emerged as a significant independent predictor for all the three psychogenic factors. Conclusions: A high prevalence of depression, anxiety and stress was found among students of both the streams. There is a need to introduce simple counselling and stress management techniques in curriculum to combat such morbidities
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Bala M, Arun Kumar TV, Tushir S, Nanda SK, Gupta RK. Quality protein maize based muffins: influence of non-gluten proteins on batter and muffin characteristics. J Food Sci Technol 2019; 56:713-723. [PMID: 30906029 DOI: 10.1007/s13197-018-3529-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/19/2018] [Indexed: 11/27/2022]
Abstract
Quality protein maize (QPM) is nutritionally improved maize which has twice the amount of lysine and tryptophan than normal maize. The present study evaluated the effect of different proteins namely egg white proteins (EWP), casein, whey protein isolate, soy protein isolate (SPI) on characteristics of gluten free QPM based muffins. QPM muffins without any added protein served as control and muffins prepared using wheat and EWP served as reference. Effect of addition of different proteins on pasting properties revealed that the thermal stability of QPM flour increased as indicated by decrease in breakdown viscosity. The effect of added proteins on QPM muffin-making properties was evaluated for rheology of batter and physicochemical, texture, color and sensory characteristics of muffins. Dynamic rheology showed that storage modulus (G') and loss modulus (G″) of batter with SPI was the highest while batter with EWP showed lowest value. QPM-EWP muffins were softer, chewy and springier and had more specific volume than control muffins and were comparable to reference muffins. Inclusion of all proteins increased L* values (lightness) and decreased a* (redness/greenness) and b* (yellow/blueness) values of QPM based muffins. Sensory analysis revealed that gluten free QPM muffin prepared from EWP were acceptable with a sensory score of 7.97 which was comparable to reference muffins (8.03).
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Affiliation(s)
- Manju Bala
- 1ICAR-Central Institute of Post-Harvest Engineering and Technology, PAU Campus, Ludhiana, Punjab 141 004 India
| | - T V Arun Kumar
- 2ICAR-Indian Agricultural Research Institute, New Delhi, 110 012 India
| | - Surya Tushir
- 1ICAR-Central Institute of Post-Harvest Engineering and Technology, PAU Campus, Ludhiana, Punjab 141 004 India
| | - S K Nanda
- 1ICAR-Central Institute of Post-Harvest Engineering and Technology, PAU Campus, Ludhiana, Punjab 141 004 India
| | - R K Gupta
- 3Mahatma Gandhi Institute for Rural Industrialization, Wardha, Maharashtra 442 001 India
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Gupta RK, Tyagi R, Singh V, Kapoor S, Singh G, Ralhan S, Selhi PK, Garg B, Kaur H, Sood N, Aslam N, Wander GS. Morphological spectrum of atherosclerotic lesions in a tertiary care Institute in Punjab. Asian J Med Sci 2018. [DOI: 10.3126/ajms.v10i1.21664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background: The incidence of coronary artery disease (CAD) has risen considerably in developing world due to industrialization, urbanisation and lifestyle changes, especially among Indians and South Asians. The onset of CAD has been seen to occur at an early age and the severity of the disease and mortality associated with CAD has also increased. The pathology of atherosclerosis needs to be re-evaluated to develop targeted therapy which can contain the disease process at the earliest stage.
Aims and Objectives: Most of the morphological studies on atherosclerosis have been done on autopsy cases. In this study, we have analysed the morphological spectrum of atherosclerotic lesions in live patients.
Materials and Methods: We retrospectively analysed the histopathology slides of 85 cases whose endarterectomy plaques were received in the Department of Pathology over a period of three and half years (January 2014 to June 2017) and classified the lesions according to Modified American Heart Association classification of atherosclerosis.
Results: The average age of patients was 60 years and male to female ratio of 4.3:1. Left anterior descending artery was the commonest vessel involved (52.4%). Majority of the cases had fibrocalcific plaques,followed by fibrous cap atheroma and calcified nodules.
Conclusion: Coronary artery plaques were found even in patients less than 40 years old. Aggressive lipid defense therapy needs to be the cornerstone of management of CAD.
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Ahmed N, Flavell S, Ferns B, Frampton D, Edwards SG, Miller RF, Grant P, Nastouli E, Gupta RK. Development of the R263K Mutation to Dolutegravir in an HIV-1 Subtype D Virus Harboring 3 Class-Drug Resistance. Open Forum Infect Dis 2018; 6:ofy329. [PMID: 30648124 PMCID: PMC6329901 DOI: 10.1093/ofid/ofy329] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 12/09/2018] [Indexed: 11/14/2022] Open
Abstract
Dolutegravir (DTG), a second-generation integrase strand-transfer inhibitor (INSTI), is equivalent or superior to current non-nucleotide reverse transcriptase inhibitors (NNRTIs), protease inhibitors (PIs), and first-generation INSTI-based antiretroviral regimens (ARVs). It has the potential to make big improvements in HIV control globally and within patients. This is perhaps the most "precious" HIV drug available. The integrase mutation R263K has been observed in tissue culture experiments and in patients treated with dolutegravir monotherapy in clinical trials. Globally, adherence and monitoring may be less than optimal and therefore DTG resistance more common. This is particularly important in low-middle-income countries, where patients may remain on failing regimens for longer periods of time and accumulate drug resistance. Data on this mutation in non-subtype B infections do not exist. We describe the first report of the R263K integrase mutation in a dolutegravir-exposed subtype D-infected individual with vertically acquired HIV. We have used deep sequencing of longitudinal samples to highlight the change in resistance over time while on a failing regimen. The case highlights that poorly adherent patients should not be offered dolutegravir even as part of a combination regimen and that protease inhibitors should be used preferentially.
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Affiliation(s)
- N Ahmed
- Mortimer Market Centre, Central and North West London NHS Foundation Trust, London, United Kingdom
| | - S Flavell
- Mortimer Market Centre, Central and North West London NHS Foundation Trust, London, United Kingdom
| | - B Ferns
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - D Frampton
- Division of Infection and Immunity, University College London, London, United Kingdom
| | - S G Edwards
- Mortimer Market Centre, Central and North West London NHS Foundation Trust, London, United Kingdom
| | - R F Miller
- Mortimer Market Centre, Central and North West London NHS Foundation Trust, London, United Kingdom.,Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom.,Centre for Clinical Research in Infection and Sexual Health, Institute for Global Health, University College London, London, United Kingdom
| | - P Grant
- Department of Clinical Virology, University College London Hospitals NHS Foundation Trust, London, United Kingdom
| | - E Nastouli
- Department of Clinical Virology, University College London Hospitals NHS Foundation Trust, London, United Kingdom.,Department of Population, Policy and Practice, UCL GOS Institute of Child Health, London, United Kingdom
| | - R K Gupta
- Mortimer Market Centre, Central and North West London NHS Foundation Trust, London, United Kingdom.,Division of Infection and Immunity, University College London, London, United Kingdom
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Bansal S, Thakur S, Mangal M, Mangal AK, Gupta RK. DNA barcoding for specific and sensitive detection of Cuminum cyminum adulteration in Bunium persicum. Phytomedicine 2018; 50:178-183. [PMID: 30466976 DOI: 10.1016/j.phymed.2018.04.023] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 02/01/2018] [Accepted: 04/08/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Bunium persicum commonly called as Kala zeera, a very high value herbaceous spice used for medicinal purposes is often adulterated with Cuminum cyminum or Safed zeera, a closely related species. Lack of distinctive morphological features makes the identification of genuine kala zeera from its adulterant difficult, the problem is even exaggerated in case of powdered material. METHODOLOGY Genomic DNA was extracted from all the plant materials by using CTAB-SDS method (Möller et al., 1992) with slight modifications. On the basis of reproducibility and high amplification ability, four universal barcoding loci viz. ITS2, rbcL-a, mat K and psbA-trnH and a specific locus Cum were used in the present study. The amplified PCR products were sequenced bidirectionally and assembled to obtain contigs. The sequences thus obtained were aligned using MUSCLE algorithm (Edgar, 2004) and information pertaining to conserved/ variable/ parsimony informative sites, number of transitions, transversions and Indels was obtained after analyzing the sequences. RESULTS AND CONCLUSION Among the tested barcoding loci, psbA-trnH has proven to be best barcode in authentication of kala zeera as its amplification and sequencing success was high and it showed the presence of polymorphic sites to detect interspecific variation. This barcode could differentiate between safed zeera and kala zeera in a single reaction, simultaneously.
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Affiliation(s)
- Sangita Bansal
- ICAR-Central Institute of Post-Harvest Engineering & Technology, Ludhiana, Punjab, India.
| | - Sujata Thakur
- ICAR-Central Institute of Post-Harvest Engineering & Technology, Ludhiana, Punjab, India
| | - Manisha Mangal
- ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Anupam K Mangal
- Central Council for Research in Ayurvedic Sciences (CCRAS), New Delhi, India
| | - R K Gupta
- ICAR-Central Institute of Post-Harvest Engineering & Technology, Ludhiana, Punjab, India
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Singh B, Mohan B, Gupta V, Ralhan S, Gupta RK, Sidhu H, Tandon R, Chhabra A, Chhabra ST, Aslam N, Wander GS. Role of extra corporeal membrane oxygenation in myocardial dysfunction due to aluminium phosphide poisoning. Indian Heart J 2018. [DOI: 10.1016/j.ihj.2018.10.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Leggieri Jr MJ, Bieler D, Bjarnason S, Cernak I, Franke A, Kirkman E, Martineau L, Orru H, Ouellet S, Philippens M, Risling MG, Sarron JC, Skriudalen S, Teland JA, Watts S, Gupta RK. Environmental toxicology of blast exposures: injury metrics, modelling, methods and standards. J ROY ARMY MED CORPS 2018; 165:7-9. [DOI: 10.1136/jramc-2018-000963] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2018] [Indexed: 11/04/2022]
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Sinha M, Modi MH, Ghosh H, Yadav PK, Gupta RK. Influence of the core-hole effect on optical properties of magnesium oxide (MgO) near the Mg L-edge region. J Synchrotron Radiat 2018; 25:771-776. [PMID: 29714187 DOI: 10.1107/s1600577518002771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/16/2018] [Indexed: 06/08/2023]
Abstract
The influence of the core-hole effect on optical properties of magnesium oxide (MgO) is established through experimental determination of optical constants and first-principles density functional theory studies. Optical constants (δ and β) of MgO thin film are measured in the spectral region 40-300 eV using reflectance spectroscopy techniques at the Indus-1 synchrotron radiation source. The obtained optical constants show strong core exciton features near the Mg L-edge region, causing significant mismatch with Henke's tabulated values. On comparing the experimentally obtained optical constants with Henke's tabulated values, an edge shift of ∼3.0 eV is also observed. Distinct evidence of effects of core exciton on optical constants (δ and β) in the near Mg L-edge absorption spectra are confirmed through first-principles simulations.
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Affiliation(s)
- Mangalika Sinha
- Soft X-ray Applications Laboratory, Synchrotrons Utilization Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India
| | - Mohammed H Modi
- Soft X-ray Applications Laboratory, Synchrotrons Utilization Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India
| | - Haranath Ghosh
- Homi Bhabha National Institute, Anushakti Nagar, Mumbai, Maharashtra 400094, India
| | - P K Yadav
- Soft X-ray Applications Laboratory, Synchrotrons Utilization Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India
| | - R K Gupta
- Soft X-ray Applications Laboratory, Synchrotrons Utilization Section, Raja Ramanna Centre for Advanced Technology, Indore 452013, India
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Schwenk ES, Udani AD, Gupta RK, Mariano ER. How academic physicians can benefit from social media. Rev Esp Anestesiol Reanim (Engl Ed) 2018; 65:103-107. [PMID: 29110891 DOI: 10.1016/j.redar.2017.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 09/07/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Affiliation(s)
- E S Schwenk
- Anesthesiology, Sidney Kimmel Medical College, Thomas Jefferson University, Filadelfia, PA, EE. UU
| | - A D Udani
- Anesthesiology, Duke University School of Medicine, Durham, NC, EE. UU
| | - R K Gupta
- Anesthesiology, Vanderbilt University Medical Center, Nashville, TN, EE. UU
| | - E R Mariano
- Anesthesiology, Perioperative and Pain Medicine, Stanford University, School of Medicine, Palo Alto, CA, EE. UU..
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Langer B, Kumari R, Mahajan R, Gupta RK, Singh P, Choudhary N. Psychological health and its associates - A comparative study among migrants and non migrants in a rural area of Northern India. Indian J Community Health 2017. [DOI: 10.47203/ijch.2017.v29i04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Background: Migration, whether voluntary or forced, entails major adaptations. An elaborate insight into the circumstances helps to induce various interventions in migrants. Aims and Objectives: To elicit the psychological health, lifestyle variables, religiosity, spirituality and coping among migrants and compare it with non migrants in a rural locality. Material and Methods: A community based cross-sectional study was undertaken among 404 adults aged 20 years and above. The General Health Questionnaire–12, Religiosity scale by Wilkes, The Daily Spiritual Experience Scale and COPE scale were used as psychometric tools for data collection. Data was analysed using SPSS (ver. 20.0). Results: A sample of 137 migrants and 267 non migrants were analysed. There was a statistically significant difference between the two groups for occupation and education (p=0.002 & 0.000 resp). The mean scores of the psychological health of migrants (10.58± 6.32) were slightly better than that of non migrants (11.49 ±5.69, p= 0.142). Spirituality scores showed migrants being more inclined towards spiritualism (p=0.016). Young age, religious and spiritual propensity showed a statistically significant correlation with better Psychological health (p=0.036, 0.000&0.013resp). Conclusion: Providing psychosocial assistance to migrant populations focussing on educational, occupational & religious-spiritual issues can reduce vulnerabilities especially for psychological health.
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Singh AK, Narsaria N, Gupta RK. A biomechanical study comparing proximal femur nail and proximal femur locking compression plate in fixation of reverse oblique proximal femur fractures. Injury 2017; 48:2050-2053. [PMID: 28801202 DOI: 10.1016/j.injury.2017.05.029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 05/15/2017] [Accepted: 05/19/2017] [Indexed: 02/02/2023]
Abstract
BACKGROUND The reverse oblique trochanteric fractures are common fractures and its treatment poses a challenge. The purpose of this study was to compare the biomechanical parameters of the construct using proximal femoral nail (PFN) and proximal femoral locking compression plates (PFLCP) in these fractures using cadaveric specimens. MATERIALS AND METHODS Twenty freshly harvested cadaveric femoral specimens were randomly assigned to two groups after measuring bone mineral density, ten of which were implanted with PFN and the other ten with PFLCP. The constructs were made unstable to simulate reverse oblique trochanteric fracture (AO type 31A3.3) by removing a standard size posteromedial wedge. These constructs were tested in a computer controlled cyclic compressive loading with 200kg at a frequency of 1 cycle/s (1Hz) and test was observed for 50,000 cycles or until implant failure, whichever occurred earlier. Peak displacements were measured and analysis was done to determine axial stiffness and subsidence in axial loading. RESULTS All the specimens in PFN group completed 50,000 cycles and in PFLCP group, seven specimens completed 50,000 cycles. Average subsidence in PFN group was 1.24±0.22mm and in PFLCP group was 1.48±0.38mm. The average stiffness of PFN group (72.6±6.8N/mm) was significantly higher than of PFLCP group (62.4±4.9N/mm) (P=0.04). The average number of cycles sustained by PFLCP was 46634 and for PFN group was 50,000 (P=0.06). CONCLUSION The PFN is biomechanically superior to PFLCP in terms of axial stiffness, subsidence and number of specimens failed for the fixation of reverse oblique trochanteric fractures of femur.
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Affiliation(s)
| | | | - R K Gupta
- Department of Orthopedics, Mayo Institute of Medical Sciences, Barabanki, India
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