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Krstic PS, Dwivedi S, Ostrowski ET, Abe S, Maan A, van Duin ACT, Koel BE. Hydrogen irradiation-driven computational surface chemistry of lithium oxide and hydroxide. J Chem Phys 2023; 159:244703. [PMID: 38153149 DOI: 10.1063/5.0177460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 12/04/2023] [Indexed: 12/29/2023] Open
Abstract
We have investigated, using molecular dynamics, the surface chemistry of hydrogen incident on the amorphous and crystalline lithium oxide and lithium hydroxide surfaces upon being slowed down by a collision cascade and retained in the amorphous surface of either Li2O or LiOH. We looked for the bonding of H to the resident structures in the surface to understand a possible chain of chemical reactions that can lead to surface transformation upon H atom impact. Our findings, using Density-Functional Theory (DFT) trained ReaxFF force field/electronegativity equalization method potentials, stress the importance of inclusion of polarization in the dynamics of a Li-O-H system, which is also illustrated by DFT energy minimization and quantum-classical molecular dynamics using tight binding DFT. The resulting polar-covalent chemistry of the studied systems is complex and very sensitive to the instantaneous positions of all atoms as well as the ratio of concentrations of various resident atoms in the surface.
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Affiliation(s)
- P S Krstic
- TheoretiK, Port Jefferson Station, New York 11776, USA
- Stony Brook University, Stony Brook, New York 11749, USA
| | - S Dwivedi
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - E T Ostrowski
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, USA
| | - S Abe
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - A Maan
- Princeton Plasma Physics Laboratory, Princeton, New Jersey 08540, USA
| | - A C T van Duin
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - B E Koel
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, USA
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Fahlström A, Dwivedi S, Drummond K. Multiple meningiomas: Epidemiology, management, and outcomes. Neurooncol Adv 2023; 5:i35-i48. [PMID: 37287575 PMCID: PMC10243858 DOI: 10.1093/noajnl/vdac108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Meningiomas are the most common nonmalignant brain tumor in adults, with an increasing incidence of asymptomatic meningiomas diagnosed on more ubiquitous neuroimaging. A subset of meningioma patients bear 2 or more spatially separated synchronous or metachronous tumors termed "multiple meningiomas" (MM), reported to occur in only 1%-10% of patients, though recent data indicate higher incidence. MM constitute a distinct clinical entity, with unique etiologies including sporadic, familial and radiation-induced, and pose special management challenges. While the pathophysiology of MM is not established, theories include independent origin in disparate locations through unique genetic events, and the "monoclonal hypothesis" of a transformed neoplastic clone with subarachnoid seeding precipitating numerous distinct meningiomas. Patients with solitary meningiomas carry the risk of long-term neurological morbidity and mortality, as well as impaired health-related quality of life, despite being a generally benign and surgically curable tumor. For patients with MM, the situation is even less favorable. MM should be regarded as a chronic disease, and in many cases, the management goal is disease control, as cure is seldom possible. Multiple interventions and lifelong surveillance are sometimes necessary. We aim to review the MM literature and create a comprehensive overview, including an evidence-based management paradigm.
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Affiliation(s)
- Andreas Fahlström
- Department of Neurosurgery, Royal Melbourne Hospital, Parkville, Victoria, Australia
- Department of Neuroscience, Neurosurgery, Uppsala University, Uppsala, Sweden
| | - Shourye Dwivedi
- Department of Neurosurgery, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Katharine Drummond
- Corresponding Author: Katharine Drummond, MBBS, MD, FRACS, Department of Neurosurgery, 4 East, Royal Melbourne Hospital, Grattan Street, Parkville, VIC 3050 Australia ()
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Ganugula R, Arora M, Dwivedi S, Chandrashekar DS, Varambally S, Scott EM, Kumar MNVR. Systemic Anti-Inflammatory Therapy Aided by Curcumin-Laden Double-Headed Nanoparticles Combined with Injectable Long-Acting Insulin in a Rodent Model of Diabetes Eye Disease. ACS Nano 2023; 17:6857-6874. [PMID: 36951721 DOI: 10.1021/acsnano.3c00535] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Therapeutic interventions that counter emerging targets in diabetes eye diseases are lacking. We hypothesize that a combination therapy targeting inflammation and hyperglycemia can prevent diabetic eye diseases. Here, we report a multipronged approach to prevent diabetic cataracts and retinopathy by combining orally bioavailable curcumin-laden double-headed (two molecules of gambogic acid conjugated to terminal carboxyl groups of poly(d,l-lactide-co-glycolide)) nanoparticles and injectable basal insulin. The combination treatment led to a significant delay in the progression of diabetic cataracts and retinopathy, improving liver function and peripheral glucose homeostasis. We found a concurrent reduction in lens aggregate protein, AGEs, and increased mitochondrial ATP production. Importantly, inhibition of Piezo1 protected against hyperglycemia-induced retinal vascular damage suggesting possible involvement of Piezo1 in the regulation of retinal phototransduction. Histologic evaluation of murine small intestines revealed that chronic administration of curcumin-laden double-headed nanoparticles was well tolerated, circumventing the fear of nanoparticle toxicity. These findings establish the potential of anti-inflammatory and anti-hyperglycemic combination therapy for the prevention of diabetic cataracts and retinopathy.
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Affiliation(s)
- R Ganugula
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Bioscience and Medicine Initiative, College of Community Health Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Department of Biological Sciences, The University of Alabama, SEC 1325, Box 870344, Tuscaloosa, Alabama 35487, United States
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - M Arora
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Bioscience and Medicine Initiative, College of Community Health Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Department of Biological Sciences, The University of Alabama, SEC 1325, Box 870344, Tuscaloosa, Alabama 35487, United States
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - S Dwivedi
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Bioscience and Medicine Initiative, College of Community Health Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - D S Chandrashekar
- Genomic Diagnostics and Bioinformatics, Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35233, United States
| | - S Varambally
- Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, Birmingham, Alabama 35233, United States
| | - E M Scott
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, 930 Campus Road, Ithaca, New York 14853, United States
| | - M N V Ravi Kumar
- The Center for Convergent Bioscience and Medicine (CCBM), The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Bioscience and Medicine Initiative, College of Community Health Sciences, The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Department of Biological Sciences, The University of Alabama, SEC 1325, Box 870344, Tuscaloosa, Alabama 35487, United States
- Alabama Life Research Institute, The University of Alabama, Tuscaloosa, Alabama 35487, United States
- Department of Pharmaceutical Sciences, Irma Lerma Rangel College of Pharmacy, Texas A&M University, College Station, Texas 77843, United States
- Chemical and Biological Engineering, University of Alabama, SEC 3448, Box 870203, Tuscaloosa, Alabama 35487, United States
- Center for Free Radical Biology, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
- Nephrology Research and Training Center, Division of Nephrology, Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama 35294, United States
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Sharma V, K. Arora B, Gupta L, Poonia A, Raina S, Yadav U, Sharma R, Dwivedi S. The efficacy and safety of thrombolytic agents for patients with prosthetic valve thrombosis. J Pract Cardiovasc Sci 2022. [DOI: 10.4103/jpcs.jpcs_54_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Dwivedi S, Kimmel LA, Kirk A, Varma D. Radiological features of pulmonary fat embolism in trauma patients: a case series. Emerg Radiol 2021; 29:41-47. [PMID: 34410546 DOI: 10.1007/s10140-021-01969-4] [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: 02/20/2021] [Accepted: 07/12/2021] [Indexed: 11/27/2022]
Abstract
PURPOSE Fat embolism syndrome (FES) is a rare complication in trauma patients (usually with long bone fractures) in which migrating medullary fat precipitates multiorgan dysfunction, classically presenting with dyspnoea, petechiae and neurocognitive dysfunction. Although this triad of symptoms is rare, it nonetheless aids diagnosis of pulmonary fat embolism (PuFE). Typical imaging features of PuFE are not established, although increasing use of CT pulmonary angiography (CTPA) in this cohort may provide important diagnostic information. We therefore conducted a case series of FES patients with CTPA imaging at a Level 1 Trauma Centre in Melbourne, Australia. METHODS Medical records and various radiological investigations including CTPA of consecutive patients diagnosed clinically with FES between 2006 and 2018, including demographics, injury and their progress during their admission, were reviewed. RESULTS Fifteen FES patients with retrievable CTPAs were included (mean age 31.2 years, range 17-69; 12 males [80%]). 93.3% had long bone fractures. CTPA was performed 2.00 ± 1.41 days post-admission. Review of these images showed pulmonary opacity in 14 (93.3%; ground-glass opacities in 9 [64.3%], alveolar opacities in 6 [42.9%]), interlobular septal thickening in 10 (66.7%), and pleural effusions in 7 (46.7%). Filling defects were identified in three (20%) CTPAs, with density measuring - 20HU to + 63HU. Ten patients (66.7%) had neuroimaging performed, with two patients demonstrating imaging findings consistent with cerebral fat emboli. CONCLUSION CTPA features of PuFE are variable, with ground-glass parenchymal changes and septal thickening most commonly seen. Filling defects were uncommon.
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Affiliation(s)
- Shourye Dwivedi
- Department of Radiology, Alfred Health, Melbourne, Australia.
- Faculty of Medicine, Nursing, and Health Sciences, Monash University, Melbourne, Australia.
| | - Lara A Kimmel
- Department of Physiotherapy, Alfred Health, Melbourne, Australia
- Department of Epidemiology and Preventative Medicine, Monash University, Melbourne, Australia
| | - Asher Kirk
- Department of Physiotherapy, Alfred Health, Melbourne, Australia
- Department of Epidemiology and Preventative Medicine, Monash University, Melbourne, Australia
| | - Dinesh Varma
- Department of Radiology, Alfred Health, Melbourne, Australia
- Department of Surgery, Monash University, Melbourne, Australia
- National Trauma Research Institute, Melbourne, Australia
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6
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Zhang Y, Jiang R, Kezele I, Flament F, Elmozino E, Zhang J, Ye C, Amar D, Coquide J, Dwivedi S, Sarda-Dutilh L, Arcin V, Aarabi P. A new procedure, free from human assessment, that automatically grades some facial skin signs in men from selfie pictures. Application to changes induced by a severe aerial chronic urban pollution. Int J Cosmet Sci 2021; 42:185-197. [PMID: 31971257 DOI: 10.1111/ics.12602] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 01/15/2023]
Abstract
OBJECTIVE These were two folds: at first, to develop an automatic grading system specifically dedicated to some facial signs of men, similar to the one previously validated on women of different ethnic ancestry and second, to assess its potential in detecting and grading the possible impacts of a severe aerial urban pollution on some facial signs of Chinese men. METHODS In both studies, selfie images were obtained from differently aged men. Nine facial signs were automatically graded through a specific A.I-based algorithm and clinically assessed by a panel of experts and dermatologists. Selfie pictures were taken from individual smartphones of variable optical properties. The first study, designed for developing an automatic grading system, involved three comparable cohorts of men from three different regional ancestries (African, Asian, Caucasian, 110 each) the selfie images of which were acquired under four different lighting conditions. As a second use case study, the facial signs of two cohorts of Chinese men (101 and 100, each), differently aged, regularly exposed to very different aerial urban pollution conditions (UP) were analysed by the same algorithm, selfies being taken under only one lighting condition. RESULTS -The new automatic grading system of facial signs suits well to men, showing comparable results than that the one dedicated to women and provides data in close agreement with experts' assessments. -In both cases (expert's or automatic methodology), the accuracy of the scores appeared ethnic-dependent. -The applied case confirmed previous results obtained clinically, that is, that many facial signs were found of an increased severity among men exposed to a severe urban pollution, as compared to those living in a less polluted city. -In both studies, statistical agreements between the automatic grading system and expert's assessments were reached. In some facial signs, the automatic grading system seems offering a slightly better accuracy than the assessments made by the experts. CONCLUSION Apart from some minor limitations, this A.I-based automatic grading system, free from human intervention, performed as well as the one previously developed in women, in close agreement with expert's assessments. In epidemiological studies, this system offers an easy, fast, affordable and confidential approach in the detection and quantification of male facial signs.
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Affiliation(s)
- Y Zhang
- ModiFace - A L'Oréal Group Company, Toronto, Canada
| | - R Jiang
- ModiFace - A L'Oréal Group Company, Toronto, Canada
| | - I Kezele
- ModiFace - A L'Oréal Group Company, Toronto, Canada
| | - F Flament
- L'Oréal Research and Innovation, Clichy, France
| | - E Elmozino
- ModiFace - A L'Oréal Group Company, Toronto, Canada
| | - J Zhang
- ModiFace - A L'Oréal Group Company, Toronto, Canada
| | - C Ye
- L'Oréal Research and Innovation, Shanghai, China
| | - D Amar
- L'Oréal Research and Innovation, Shanghai, China
| | - J Coquide
- L'Oréal CDO - Digital Service Factory, Clichy, France
| | - S Dwivedi
- L'Oréal CDO - Digital Service Factory, Clichy, France
| | | | - V Arcin
- L'Oréal CDO - Digital Service Factory, Clichy, France
| | - P Aarabi
- ModiFace - A L'Oréal Group Company, Toronto, Canada
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Wang C, Haikerwal J, Dwivedi S, Haikerwal D. 337 Elderly Patient with Single Right Coronary Artery and Congenital Absence of Left Coronary Artery. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.344] [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: 11/15/2022]
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Banerjee J, Satapathy S, Dwivedi S, Kumar L, Dey A. VALIDATION OF A NEWLY DEVELOPED SCREENING TOOL (SCOPE-C, VERSION 1) FOR STREAMLINING CARE AND DECISION MAKING IN THE OLDER ADULTS WITH CANCER IN INDIA. J Geriatr Oncol 2019. [DOI: 10.1016/s1879-4068(19)31251-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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9
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Singh A, Dwivedi S, Pradhan A, Sethi R, Chandra S, Vishwakarma P, Chaudhary G, Bhandari M, Sharma A. Isolated ST Elevation Myocardial Infarction Involving Leads I and aVL: Angiographic & Electrocardiographic Correlation from a Tertiary Care Center. Indian Heart J 2019. [DOI: 10.1016/j.ihj.2019.11.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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10
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Bhardwaj S, Sharma V, Gupta L, Dwivedi S, Arora Y, Arora A. Non alcoholic fatty liver disease (NAFLD) is a marker of severity of coronary artery disease (CAD). Indian Heart J 2019. [DOI: 10.1016/j.ihj.2019.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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11
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Johari Y, Ooi G, Burton P, Laurie C, Dwivedi S, Qiu Y, Chen R, Loh D, Nottle P, Brown W. Long-Term Matched Comparison of Adjustable Gastric Banding Versus Sleeve Gastrectomy: Weight Loss, Quality of Life, Hospital Resource Use and Patient-Reported Outcome Measures. Obes Surg 2019; 30:214-223. [DOI: 10.1007/s11695-019-04168-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Dwivedi S, Pareek P, Vishnoi J, Elhence P, Sharma P, Misra S. Significance of breast cancer stem cell marker and tumor suppressor mirnas (miR 200a, miR 200b, miR205 and miR 145) in breast carcinoma. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sharma P, Lingeswaran M, Dwivedi S, Nebhinani N, Purohit P. Lead exposure affects 5HT2A serotonin receptor and transporter expression in pediatric age group: An explorative study in North-Western India. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.1607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dwivedi S, Mangla H. Familial Hypercholesterolemia (FH) Awareness amongst Physicians in Mumbai, India. J Assoc Physicians India 2019; 67:11-12. [PMID: 31311232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- S Dwivedi
- Senior Consultant Cardiologist, National Heart Institute, New Delhi
| | - H Mangla
- BCLT Intern, HIMSR, Jamia Hamdard, New Delhi
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Affiliation(s)
- S. Dwivedi
- Graduate School of Advanced Science and Technology, Energy and Environment Area; Japan Advanced Institute of Science and Technology, 1-1 Asahidai; Nomi Ishikawa 923-1292 Japan
| | - T. Kaneko
- Graduate School of Advanced Science and Technology, Energy and Environment Area; Japan Advanced Institute of Science and Technology, 1-1 Asahidai; Nomi Ishikawa 923-1292 Japan
- Japan Science and Technology, ALCA; Tokyo 102-0076 Japan
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Dwivedi S, Gupta SK, Rajora R. Indian College of Physicians (ICP) Position Statement on Pharmacovigilance. J Assoc Physicians India 2018; 66:93. [PMID: 30347968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- S Dwivedi
- Senior Consultant Cardiologist, National Heart Institute, New Delhi 110065
| | - S K Gupta
- HOD Clinical Research DPSR University, New Delhi
| | - Richa Rajora
- M. Pharm Research Scholar-Hospital Pharmacy, DIPSAR, New Delhi 110017
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Dwivedi S, Sakamoto S, Kato S, Mitsumata T, Kaneko T. Effects of biopolyimide molecular design on their silica hybrids thermo-mechanical, optical and electrical properties. RSC Adv 2018; 8:14009-14016. [PMID: 35539300 PMCID: PMC9079868 DOI: 10.1039/c8ra01965g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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: 03/06/2018] [Accepted: 04/03/2018] [Indexed: 11/21/2022] Open
Abstract
Polymers, derived from bio-derived resources, have gained considerable momentum because of a lower dependence over conventional fossil-based resources without compromising the materials' thermo-mechanical properties. Unique characteristics of organic and inorganic materials can be incorporated by a combination of both to obtain hybrid materials. We have recently developed a series of transparent biopolyimides (BPI) from a biologically derived exotic amino acid, 4-aminocinnamic acid (4ACA) to yield 4-amino truxillic ester (4ATA ester) derivatives. In the present research, the polyimide-precursor was subjected to sol–gel polycondensation reactions with silicon-alkoxide followed by annealing under vacuo to yield a biopolyimide-silica hybrid. The biopolyimide structures (4ATA acid/ester) and their silica hybrids thermo-mechanical, electrical and optical performance were evaluated. It was found that the biopolyimide with 4ATA(ester) yields thermo-mechanically robust films with very high electrical stability as well as optical transparency, plausibly due to the uniform dispersion of the silica particles in the biopolyimide matrix. Biopolyamide structure and their silica hybrids performances were studied. Biopolyamide with inability to interact with silanol during sol–gel condensation for silica formation showed superior thermo-mechanical, optical and electrical properties.![]()
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Affiliation(s)
- S. Dwivedi
- Graduate School of Advanced Science and Technology
- Energy and Environment Area
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - S. Sakamoto
- Graduate School of Advanced Science and Technology
- Energy and Environment Area
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
| | - S. Kato
- Department of Materials Science & Technology
- Faculty of Engineering
- Niigata University
- Niigata 950-2181
- Japan
| | - T. Mitsumata
- Japan Science and Technology
- ALCA
- Tokyo 102-0076
- Japan
- Department of Materials Science & Technology
| | - T. Kaneko
- Graduate School of Advanced Science and Technology
- Energy and Environment Area
- Japan Advanced Institute of Science and Technology
- Nomi
- Japan
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Affiliation(s)
- H. Indani
- Geriatric Medicine, All India Institute of Medical Sciences, Delhi, Delhi, India
| | - R. Bansal
- Geriatric Medicine, All India Institute of Medical Sciences, Delhi, Delhi, India
| | - P. Chatterjee
- Geriatric Medicine, All India Institute of Medical Sciences, Delhi, Delhi, India
| | - A. Chakrawarty
- Geriatric Medicine, All India Institute of Medical Sciences, Delhi, Delhi, India
| | - S. Dwivedi
- Geriatric Medicine, All India Institute of Medical Sciences, Delhi, Delhi, India
| | - A.B. Dey
- Geriatric Medicine, All India Institute of Medical Sciences, Delhi, Delhi, India
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20
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Bansal R, Indani H, Chatterjee P, Chakrawarty A, Dwivedi S, Dey A. ASSOCIATION OF DIABETES AND ITS COMPLICATIONS WITH DEPRESSION IN OLDER PEOPLE OF INDIA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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21
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Dwivedi S, Sharma N, Sharma V. Dental considerations in cardiovascular patients: A practical perspective. Indian Heart J 2017. [PMID: 28648450 PMCID: PMC5485436 DOI: 10.1016/j.ihj.2017.04.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- S Dwivedi
- National Heart Institute, India; Department of Dentistry, HIMSR & HAH Centenary Hospital, Jamia Hamdard, New Delhi 110062, India; National Heart Institute, India.
| | - Nilima Sharma
- National Heart Institute, India; Department of Dentistry, HIMSR & HAH Centenary Hospital, Jamia Hamdard, New Delhi 110062, India; National Heart Institute, India
| | - Vinod Sharma
- National Heart Institute, India; Department of Dentistry, HIMSR & HAH Centenary Hospital, Jamia Hamdard, New Delhi 110062, India; National Heart Institute, India
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22
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Madhu SV, Aslam M, Aiman AJ, Siddiqui A, Dwivedi S. Prevalence of hypogonadism in male Type 2 diabetes mellitus patients with and without coronary artery disease. Indian J Endocrinol Metab 2017; 21:31-37. [PMID: 28217495 PMCID: PMC5240077 DOI: 10.4103/2230-8210.195999] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
AIM The present study is carried out to investigate hypogonadism using serum testosterone levels in male Type 2 diabetes mellitus (T2DM) subjects with and without coronary artery disease (CAD). SUBJECTS AND METHODS A total of 150 age and body mass index-matched male subjects in the age group of 30-70 years were recruited in three groups; Group A - subjects with normal glucose tolerance, Group B - T2DM subjects without CAD, and Group C - T2DM subjects with CAD (n = 50 each group). Subjects with CAD were diagnosed on the basis of electrocardiogram, treadmill testing, stress echocardiography, or coronary angiography. Total testosterone (TT), free testosterone (FT), bioavailable testosterone, calculated FT and glycemic parameters were measured and compared between all the three study groups. One-way ANOVA followed by post hoc Tukey's test and Pearson's coefficient of correlation tests were used for analysis. RESULTS Hypogonadism (TT <3 ng/ml) was observed in 40% (20/50) of subjects in Group C and 32% (16/50) of subjects in Group B as compared to only 14% (7/50) of subjects in Group A (Groups A vs. B; P = 0.055, Groups A vs. C; P = 0.006 and Groups B vs. C; P = 0.53). Group C subjects had significantly lower levels of TT (3.55 ± 1.46 ng/ml vs. 4.73 ± 2.17 ng/ml, P = 0.005), calculated FT (0.062 ± 0.0255 pg/ml vs. 0.0951 ± 0.0508 pg/ml, P ≤ 0.001), and bioavailable testosterone (1.48 ± 0.65 ng/ml vs. 2.18 ± 1.20 ng/ml, P ≤ 0.001) compared to control Group A subjects. There was no significant difference in any of the testosterone parameters between Groups A and B. Furthermore, an overall positive correlation was found between hypogonadism and CAD (r = 0.177, P = 0.030, n = 150). CONCLUSION We observed hypogonadism as indicated by low testosterone levels in a significant proportion of male T2DM subjects with CAD.
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Affiliation(s)
- S. V. Madhu
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - M. Aslam
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - A. J. Aiman
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - A. Siddiqui
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
| | - S. Dwivedi
- Department of Medicine, Centre for Diabetes Endocrinology and Metabolism, University College of Medical Sciences (University of Delhi) and GTB Hospital, New Delhi, India
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Joshi V, Mack P, Archbell J, Li G, Arent M, Vang K, Ivatury S, Schultz R, Lechuga-Ballesteros D, Dwivedi S, Riebe M. P293 Drug delivery performance of budesonide (BD), glycopyrronium (GP) and formoterol (FF) triple combination (BGF) co-suspension™ delivery technology mdis. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.436] [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: 11/03/2022]
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Banerjee J, Pradhan R, Gupta A, Kumar R, Sahu V, Upadhyay AD, Chaterjee P, Dwivedi S, Dey S, Dey AB. CDK4 in lung, and head and neck cancers in old age: evaluation as a biomarker. Clin Transl Oncol 2016; 19:571-578. [PMID: 27815686 DOI: 10.1007/s12094-016-1565-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 10/22/2016] [Indexed: 01/14/2023]
Abstract
BACKGROUND Cyclin dependent kinases (CDK) are key factors in promoting the initiation and development of tumors. These kinases are important for maintenance of mitochondrial biogenesis and imbalance in their expression in old age may lead to the oxidative stress. Lung cancer (LC), and head and neck squamous cell carcinoma (HNSCC) are two very prominent cancers in older Indians. Both the cancers are showing increasing trend in older population. The present study assessed serum concentration of one of the kinases; CDK4 in older LC and HNSCC patients. METHODS The study included 100 subjects each of LC and HNSCC; and older subjects without cancer or any major health problems as controls. Serum CDK4 concentration was estimated using real-time label-free Surface plasmon resonance (SPR) and was verified by western blot. RESULTS Significant elevation in serum CDK4 was observed in cases with LC and HNSCC compared to controls. HNSCC patients with higher CDK4 expression had distinctly shorter survival than patients with comparatively lower CDK4 expression. No such difference was observed in LC patients. The germ line mutation study of this gene in Exon-2 was performed and none was observed among cases and controls. CONCLUSION It can be concluded that older patients with HNSCC and lung cancer have raised serums CDK4 levels, which has the potential to emerge as a biomarker in clinical practice.
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Affiliation(s)
- J Banerjee
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - R Pradhan
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - A Gupta
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - R Kumar
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - V Sahu
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - A D Upadhyay
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - P Chaterjee
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - S Dwivedi
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - S Dey
- Department of Biophysics, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
| | - A B Dey
- Department of Geriatric Medicine, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
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Dwivedi S, Biswas S. Enhanced room-temperature magnetoresistance in self-assembled Ag-coated multiphasic chromium oxide nanocomposites. Phys Chem Chem Phys 2016; 18:23879-87. [PMID: 27524510 DOI: 10.1039/c6cp03585j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-assembled Ag-coated multiphasic diluted magnetic chromium oxide nanocomposites were developed by a facile chemical synthesis route involving a reaction of CrO3 in the presence of Ag(+) ions in an aqueous solution of poly-vinyl alcohol (PVA) and sucrose. The tiny ferromagnetic single domains of tetragonal and orthorhombic CrO2 (t-CrO2 and o-CrO2) embedded in a dominantly insulating matrix of antiferromagnetic Cr2O3 and Cr3O8, and paramagnetic CrO3 and Cr2O, with a correlated diamagnetic thin and discontinuous shell layer of Ag efficiently tailor useful magnetic and room-temperature magnetoresistance (RTMR) properties. The t-CrO2, o-CrO2, possible canted ferromagnetism due to spin disorder in the matrix components, and the associated exchange interactions are the elements responsible for the observed ferromagnetism in the composite structure. The chain of ferromagnetic centers embedded in the composite matrix constitutes a type of magnetic tunnel junction through which spin-polarized electrons can effectively move without significant local interruptions. Electrical transport measurements showed that the spin-dependent tunneling (SDT) mechanism in the engineered microstructure of the nanocomposites exists even at room temperature (RT). A typical sample unveils a markedly enhanced RTMR-value, e.g., -80% at an applied field (H) of 3 kOe, compared to the reported values for compacted CrO2 powders or composites. The enhanced RTMR-value observed in the Coulomb blockade regime appears not only due to the considerably suppressed spin flipping at RT but primarily due to a highly effective SDT mechanism through an interlinked structure of Ag-coated multiphasic chromium oxide nanocomposites.
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Affiliation(s)
- S Dwivedi
- Department of Physics, The LNM Institute of Information Technology, Jaipur-302031, India.
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Agarwal AK, Ginisha G, Preeti G, Dwivedi S, Swamai P. The association between diabetes and tuberculosis may be the next challenge for global tuberculosis control worldwide. Indian J Endocrinol Metab 2016; 20:732-733. [PMID: 27730090 PMCID: PMC5040060 DOI: 10.4103/2230-8210.190565] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Affiliation(s)
- Anil Kumar Agarwal
- Department of Community Medicine, G R Medical College, Gwalior, Madhya Pradesh, India
| | - Gupta Ginisha
- Department of Community Medicine, G R Medical College, Gwalior, Madhya Pradesh, India
| | - Gupta Preeti
- Government Medical College, Kota, Rajasthan, India
| | - S. Dwivedi
- Department of Community Medicine, G R Medical College, Gwalior, Madhya Pradesh, India
| | - P. Swamai
- Department of Community Medicine, G R Medical College, Gwalior, Madhya Pradesh, India
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Dwivedi S, Kinhikar R, Tambe C, Bargundi A, Deshpande D, Shrivastava S, Mahajan M. Dosimetric Measurement for Isocentre Blocked Boost Fields in 3D-CRT Treatment Plans. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)30075-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dwivedi S, Jagtap A, Umbarkar R, Jakhotia N, George G, Mahajan M. RapidArc commissioning and dosimetric verification using EPID portal dosimetry system. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)30074-3] [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: 12/01/2022]
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Dwivedi S, Chopra D. Cryptostegia grandiflora Toxicity Manifesting as Hyperkalemia, Complete Heart Block and Thrombocytopenia. J Assoc Physicians India 2015; 63:75. [PMID: 29900719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Thakur B, Sreenivas V, Dwivedi S, Pandey A. A Brief Assessment of Neighbourhood Effect on Neonatal Mortality: Translation of Area Level Variance in the Odds Ratio Scale in Multilevel Logistic Regression. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.408] [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: 11/12/2022] Open
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Aggarwal A, Srivastava S, Agarwal MP, Dwivedi S. Premature Graying of Hair: An Independent Risk Marker for Coronary Artery Disease in Smokers - A Retrospective Case Control Study. Ethiop J Health Sci 2015; 25:123-8. [PMID: 26124619 PMCID: PMC4478263 DOI: 10.4314/ejhs.v25i2.4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Premature graying of hair as a risk marker among young smokers has a potential of identifying coronary artery disease (CAD) at a very early stage. There is absence of literature that assesses premature graying of hair as an independent marker of CAD in smokers. MATERIAL AND METHODS The present single-centre case control study enrolled a total of 62 consecutive chronic smokers (≤ 45 years) (Group I) and 60 consecutive young CAD patients (≤45 years) who were chronic smokers (Group II). Another group comprising of 114 patients (≤45 years) having no smoking history and no cardiac ailments either (Group III) was enrolled as control population. All subjects were males. A detailed history and clinical examination regarding conventional coronary risk factors and carotid intima media thickness was done in both groups. RESULTS The carotid intima media thickness, dyslipidemia and blood pressure were significantly higher in group I and II as compared to group III. When the groups were compared for graying of hair, it was found that the group II (i.e., smokers and CAD) had maximum prevalence of graying which was significantly higher than the control as well as smoker groups. The presence of premature graying of hair was associated with 3.24 times the risk of CAD on multiple logistic regression analysis. CONCLUSION The presence of premature graying of hair was associated with an increased risk of CAD in young smokers. Premature graying of hair can be used as preliminary evidence by clinicians for classifying patients at risk for premature CAD especially in smokers.
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Affiliation(s)
- A Aggarwal
- Department of Medicine, University College of Medical Sciences & GTB Hospital, Delhi, India
| | - S Srivastava
- Department of Medicine, School of Medical Sciences and Research, Sharda University, Greater Noida
| | - M P Agarwal
- Department of Medicine, University College of Medical Sciences & GTB Hospital, Delhi, India
| | - S Dwivedi
- Hamdard Institute of Medical Sciences and Research, Associated HAH Centenary Hospital, Jamia Hamdard, New Delhi, India
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Madeshiya AK, Singh S, Dwivedi S, Saini KS, Singh R, Tiwari S, Konwar R, Ghatak A. Monocyte chemoattractant protein-1 gene polymorphism and its serum level have an impact on anthropometric and biochemical risk factors of metabolic syndrome in Indian population. Int J Immunogenet 2015; 42:78-86. [DOI: 10.1111/iji.12174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 09/22/2014] [Accepted: 12/14/2014] [Indexed: 12/16/2022]
Affiliation(s)
- A. K. Madeshiya
- Department of Physiology; King George's Medical University; Lucknow India
| | - S. Singh
- Department of Physiology; King George's Medical University; Lucknow India
| | - S. Dwivedi
- Department of Physiology; King George's Medical University; Lucknow India
| | - K. S. Saini
- Division of Endocrinology; Central Drug Research Institute; Lucknow India
| | | | - S. Tiwari
- Department of Physiology; King George's Medical University; Lucknow India
| | - R. Konwar
- Division of Endocrinology; Central Drug Research Institute; Lucknow India
| | - A. Ghatak
- Division of Clinical and Experimental Medicine; Central Drug Research Institute; Lucknow India
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Dwivedi S, Singla S. Science of Exercise: Ancient Indian Origin. J Assoc Physicians India 2014; 62:73. [PMID: 26259431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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36
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Kumar A, Dwivedi S, Singh RP, Chakrabarty D, Mallick S, Trivedi PK, Adhikari B, Tripathi RD. Evaluation of amino acid profile in contrasting arsenic accumulating rice genotypes under arsenic stress. Biol plant 2014; 58:733-742. [DOI: 10.1007/s10535-014-0435-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
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Dwivedi S, Das B, Kapil A, Sood S, Chaudhry R, Gupta S, Deb M, Nair D, Aneja S. Antigen sequence typing of outer membrane protein (fetA) gene of Neisseria meningitidis serogroup A from Delhi & adjoining areas. Indian J Med Res 2014; 140:766-9. [PMID: 25758575 PMCID: PMC4365350] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND & OBJECTIVES Meningitis caused by Neisseria meningitidis is a fatal disease. Meningococcal meningitis is an endemic disease in Delhi and irregular pattern of outbreaks has been reported in India. All these outbreaks were associated with serogroup A. Detailed molecular characterization of N. meningitidis is required for the management of this fatal disease. In this study, we characterized antigenic diversity of surface exposed outer membrane protein (OMP) FetA antigen of N. meningitidis serogroup A isolates obtained from cases of invasive meningococcal meningitis in Delhi, India. METHODS Eight isolates of N. meningitidis were collected from cerebrospinal fluid during October 2008 to May 2011 from occasional cases of meningococcal meningitis. Seven isolates were from outbreaks of meningococcal meningitis in 2005-2006 in Delhi and its adjoining areas. These were subjected to molecular typing of fetA gene, an outer membrane protein gene. RESULTS All 15 N. meningitides isolates studied were serogroup A. This surface exposed porin is putatively under immune pressure. Hence as a part of molecular characterization, genotyping was carried out to find out the diversity in outer membrane protein (FetA) gene among the circulating isolates of N. meningitidis. All 15 isolates proved to be of the same existing allele type of FetA variable region (VR) when matched with global database. The allele found was F3-1 for all the isolates. INTERPRETATION & CONCLUSIONS There was no diversity reported in the outer membrane protein FetA in the present study and hence this protein appeared to be a stable molecule. More studies on molecular characterization of FetA antigen are required from different serogroups circulating in different parts of the world.
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Affiliation(s)
- S. Dwivedi
- Department of Microbiology, All India Institute of Medical Science, New Delhi, India
| | - B.K. Das
- Department of Microbiology, All India Institute of Medical Science, New Delhi, India,Reprint requests: Dr Bimal Kumar Das, Department of Microbiology, All India Institute of Medical Sciences Ansari Nagar, New Delhi 110 029, India e-mail:
| | - A. Kapil
- Department of Microbiology, All India Institute of Medical Science, New Delhi, India
| | - S. Sood
- Department of Microbiology, All India Institute of Medical Science, New Delhi, India
| | - R. Chaudhry
- Department of Microbiology, All India Institute of Medical Science, New Delhi, India
| | - S. Gupta
- Department of Microbiology, National Center for Disease Control, New Delhi, India
| | - M. Deb
- Department of Microbiology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
| | - D. Nair
- Department of Microbiology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
| | - S. Aneja
- Department of Paediatrics, Lady Hardinge Medical College & Kalawati Saran Children's Hospital, New Delhi, India
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Shukla KK, Chambial S, Dwivedi S, Misra S, Sharma P. Recent scenario of obesity and male fertility. Andrology 2014; 2:809-18. [DOI: 10.1111/andr.270] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 07/28/2014] [Accepted: 08/06/2014] [Indexed: 12/26/2022]
Affiliation(s)
- K. K. Shukla
- Department of Biochemistry; All India Institute of Medical Sciences; Jodhpur Rajasthan India
| | - S. Chambial
- Department of Biochemistry; All India Institute of Medical Sciences; Jodhpur Rajasthan India
| | - S. Dwivedi
- Department of Biochemistry; All India Institute of Medical Sciences; Jodhpur Rajasthan India
| | - S. Misra
- Department of Surgical Oncology; All India Institute of Medical Sciences; Jodhpur Rajasthan India
| | - P. Sharma
- Department of Biochemistry; All India Institute of Medical Sciences; Jodhpur Rajasthan India
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Affiliation(s)
- A Aggarwal
- Department of Medicine, University College of Medical Sciences, University of Delhi & GTB Hospital, Delhi, India.
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Rai UN, Tripathi RD, Singh NK, Upadhyay AK, Dwivedi S, Shukla MK, Mallick S, Singh SN, Nautiyal CS. Constructed wetland as an ecotechnological tool for pollution treatment for conservation of Ganga river. Bioresour Technol 2013; 148:535-541. [PMID: 24080292 DOI: 10.1016/j.biortech.2013.09.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 08/27/2013] [Accepted: 09/01/2013] [Indexed: 06/02/2023]
Abstract
With aim to develop an efficient and ecofriendly approach for on-site treatment of sewage, a sub-surface flow constructed wetland (CW) has been developed by raising potential aquatic macrophytes; Typha latifolia, Phragmites australis, Colocasia esculenta, Polygonum hydropiper, Alternanthera sessilis and Pistia stratoites in gravel as medium. Sewage treatment potential of CW was evaluated by varying retention time at three different stages of plant growth and stabilization. After 6 months, monitoring of fully established CW indicated reduction of 90%, 65%, 78%, 84%, 76% and 86% of BOD, TSS, TDS, NO3-N, PO4-P and NH4-N, respectively in comparison to inlet after 36 h of retention time. Sewage treatment through CW also resulted in reduction of heavy metal contents. Thus, CW proved an effective method for treatment of wastewater and may be developed along river Ganga stretch as an alternative technology. Treated water may be drained into river to check further deterioration of Ganga water quality.
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Affiliation(s)
- U N Rai
- Plant Ecology and Environmental Science Division, CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow 226 001, India
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Affiliation(s)
- R. P. Yadav
- Department of Physics; University of Allahabad; Allahabad; Uttar; 211002; India
| | - R. K. Pandey
- Nanotechnology Application Centre; University of Allahabad; Allahabad; Uttar; 211002; India
| | | | - S. Dwivedi
- K. Banerjee Centre of Atmospheric and Ocean Studies; University of Allahabad; Allahabad; Uttar; 211002; India
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Rao U, Nair S, Dwivedi S. An echogenic mass on the aortic valve. J Echocardiogr 2013; 11:109-10. [PMID: 27278617 DOI: 10.1007/s12574-012-0162-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 11/25/2012] [Accepted: 12/13/2012] [Indexed: 10/27/2022]
Affiliation(s)
- Usha Rao
- West Suffolk Hospital, Hardwick Lane, Bury St Edmunds, Suffolk, IP33 2QZ, UK.
| | - S Nair
- Papworth Hospital, Cambridge, UK
| | - S Dwivedi
- West Suffolk Hospital, Hardwick Lane, Bury St Edmunds, Suffolk, IP33 2QZ, UK
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Wadhwa A, Avasthi R, Ghambhir JK, Dwivedi S. To study the prevalence and profile of metabolic syndrome, levels of hs-CRP, Lp(a) and serum ferritin in young Indian patients (< or = 45 years) with acute myocardial infarction. J Assoc Physicians India 2013; 61:384-386. [PMID: 24640203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To study the prevalence and profile of metabolic syndrome, levels of hs-CRP, Lp(a) and serum ferritin in young Indian patients (< or = 45 years) with acute MI. METHODS A total of 80 subjects in two groups (40 cases and 40 controls) of age < or = 45 years were studied. Diagnosis of MI was made using the American College of Cardiology and European Society of Cardiology guidelines for acute MI. Patients were assessed for presence of MetS, diagnosed as per modified ATP III criteria. The anthropometric measurements (including height, weight, waist circumference) and sample collection for lipid profile, fasting blood sugar, hs-CRP, Lp(a) and serum ferritin were done after seventy two hours of admission. RESULTS The mean age for cases was 39.23 +/- 4.80 years and for controls it was 38.9 +/- 4.23 years. 19 (47.5%) patients out of 40 in group 1 fulfilled > or = 3/5 criteria for MetS while only 8 (20%) subjects in control group had MetS. Among five components of metabolic syndrome, increased waist circumference was most predominant factor followed by decreased HDL, increased TG, increased blood pressure and impaired fasting glucose. The mean value of serum ferritin was 279.33 +/- 46.69 mg in case group as compared to 245.15 +/- 56.94 in control group. hs-CRP (16.048 +/- 10.27 mg/l vs 1.8 +/- 1.6 mg/l) and Lp(a) (38.74 +/- 26.15 mg/dl vs 20.54 +/- 16.27 mg/dl) levels were significantly raised in cases as compared to control subjects. CONCLUSION The present study revealed high prevalence of metabolic syndrome (47.5%) in young patients with acute MI. Serum hsCRP, a diagnostic and prognostic novel marker of inflammation was also significantly elevated in cases. Its relationship with metabolic syndrome is also well established. Lp(a) and serum ferritin were also raised in cases.
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Mahto S, Sharma SB, Dwivedi S, Puri D, Tripathi RL. Biomarkers for early detection of risk in female patients with coronary artery disease: pilot study. J Assoc Physicians India 2013; 61:317-319. [PMID: 24482944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In women with coronary artery disease (CAD), clinical presentation is different enough from men which leads to missed or delayed diagnosis. Biomarkers can be used for assessment of CAD patients. In case control study, we analyzed blood samples of 30 controls, 30 cases of Unstable Angina (UA) and 30 cases of Myocardial Infarction (MI) for Pro-inflammatory markers (hs-CRP, IL-6, ICAM-1) and Pregnancy Associated Plasma Protein-A (PAPP-A). Based on discriminant analysis, hs-CRP is the potential marker to discriminate cases of UA from controls while PAPP-A is the reliable marker which can discriminate the cases of MI from UA and controls.
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Affiliation(s)
- Sunita Mahto
- Department of Biochemistry, University College of Medical Sciences and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi-110095
| | - S B Sharma
- Department of Biochemistry, University College of Medical Sciences and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi-110095
| | - S Dwivedi
- Coronary Care Unit, University College of Medical Sciences and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi-110095
| | - D Puri
- Department of Biochemistry, University College of Medical Sciences and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi-110095
| | - R L Tripathi
- Department of Biochemistry, University College of Medical Sciences and Guru Teg Bahadur Hospital, Dilshad Garden, Delhi-110095
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Anand PS, Kamath KP, Bansal A, Dwivedi S, Anil S. Comparison of periodontal destruction patterns among patients with and without the habit of smokeless tobacco use - a retrospective study. J Periodontal Res 2013; 48:623-31. [DOI: 10.1111/jre.12048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2012] [Indexed: 11/29/2022]
Affiliation(s)
- P. S. Anand
- Department of Periodontics; People's College of Dental Sciences & Research Centre; Bhopal Madhya Pradesh State India
| | - K. P. Kamath
- Department of Oral Pathology; People's Dental Academy; Bhopal Madhya Pradesh State India
| | - A. Bansal
- Department of Periodontics; People's College of Dental Sciences & Research Centre; Bhopal Madhya Pradesh State India
| | - S. Dwivedi
- Department of Periodontics; People's College of Dental Sciences & Research Centre; Bhopal Madhya Pradesh State India
| | - S. Anil
- Department of Periodontics and Community Dentistry; College of Dentistry; King Saud University; Riyadh Kingdom of Saudi Arabia
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Agrawal A, Kakani A, Baisakhiya N, Galwankar S, Dwivedi S, Pal R. Developing traumatic brain injury data bank: Prospective study to understand the pattern of documentation and presentation. The Indian Journal of Neurotrauma 2012. [DOI: 10.1016/j.ijnt.2012.11.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [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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Abstract
BACKGROUND Although there has been a considerable reduction in the infective causes of ocular morbidity, the global burden of blindness has not significantly altered for over a decade. OBJECTIVES To find the extent of ocular morbidity in different subgroups of the rural population and to study the factors associated with ocular morbidity. MATERIALS AND METHODS A cross-sectional study was conducted at the Jasra and Saidabad blocks of Allahabad District. A total of eight villages were selected by multistage random sampling technique. The data were analyzed with SPSS Software. RESULTS Among 9,736 people surveyed, 931 cases of eye diseases were identified. Ocular morbidity was highest (40.92 %) among those aged above 60 years. A higher morbidity was also observed among females (53.60 %), illiterates (69.50 %) and those belonging to low socioeconomic strata (42.86 %). The main causes of ocular morbidity in the study population were cataract (41.89 %), uncorrected refractive errors (21.59 %), xerophthalmia (10.20 %) and glaucoma ( 4.83 %). CONCLUSIONS Programs for cataract surgery, detection and treatment of glaucoma, correction of refractive errors and vitamin A prophylaxis for xerophthalmia need to be targeted to further reduce the burden of ocular morbidity.
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Affiliation(s)
- A Singh
- Department of Community Medicine, Rohilkhand Medical College and Hospital, Bareilly, India
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48
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Aggarwal R, Dwivedi S. Nicotine and mobile mania: A new occupational threat to mankind. Indian J Occup Environ Med 2012; 16:149. [PMID: 23776327 PMCID: PMC3683186 DOI: 10.4103/0019-5278.111766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Mathur V, Dwivedi S, Hassan M, Misra R. Knowledge, Attitude, and Practices about Biomedical Waste Management among Healthcare Personnel: A Cross-sectional Study. Indian J Community Med 2011; 36:143-5. [PMID: 21976801 PMCID: PMC3180941 DOI: 10.4103/0970-0218.84135] [Citation(s) in RCA: 50] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Accepted: 06/26/2010] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND The waste produced in the course of healthcare activities carries a higher potential for infection and injury than any other type of waste. Inadequate and inappropriate knowledge of handling of healthcare waste may have serious health consequences and a significant impact on the environment as well. OBJECTIVE The objective was to assess knowledge, attitude, and practices of doctors, nurses, laboratory technicians, and sanitary staff regarding biomedical waste management. MATERIALS AND METHODS This was a cross-sectional study. SETTING The study was conducted among hospitals (bed capacity >100) of Allahabad city. PARTICIPANTS Medical personnel included were doctors (75), nurses (60), laboratory technicians (78), and sanitary staff (70). RESULTS Doctors, nurses, and laboratory technicians have better knowledge than sanitary staff regarding biomedical waste management. Knowledge regarding the color coding and waste segregation at source was found to be better among nurses and laboratory staff as compared to doctors. Regarding practices related to biomedical waste management, sanitary staff were ignorant on all the counts. However, injury reporting was low across all the groups of health professionals. CONCLUSION The importance of training regarding biomedical waste management needs emphasis; lack of proper and complete knowledge about biomedical waste management impacts practices of appropriate waste disposal.
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Affiliation(s)
- Vanesh Mathur
- Department of Community Medicine, MLN Medical College, Allahabad, India
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50
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Bampalis VG, Dwivedi S, Shai E, Brandl R, Varon D, Siess W. Effect of 5-HT2A receptor antagonists on human platelet activation in blood exposed to physiologic stimuli and atherosclerotic plaque. J Thromb Haemost 2011; 9:2112-5. [PMID: 21848639 DOI: 10.1111/j.1538-7836.2011.04476.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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