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Ravi V, Raju S, More SJ. Evaluation of potential increase in photosynthetic efficiency of cassava ( Manihot esculenta Crantz) plants exposed to elevated carbon dioxide. Funct Plant Biol 2024; 51:FP23254. [PMID: 38743837 DOI: 10.1071/fp23254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/22/2024] [Indexed: 05/16/2024]
Abstract
Cassava (Manihot esculenta Crantz), an important tropical crop, is affected by extreme climatic events, including rising CO2 levels. We evaluated the short-term effect of elevated CO2 concentration (ECO2 ) (600, 800 and 1000ppm) on the photosynthetic efficiency of 14 cassava genotypes. ECO2 significantly altered gaseous exchange parameters (net photosynthetic rate (P n ), stomatal conductance (g s ), intercellular CO2 (C i ) and transpiration (E )) in cassava leaves. There were significant but varying interactive effects between ECO2 and varieties on these physiological characteristics. ECO2 at 600 and 800ppm increased the P n rate in the range of 13-24% in comparison to 400ppm (ambient CO2 ), followed by acclimation at the highest concentration of 1000ppm. A similar trend was observed in g s and E . Conversely, C i increased significantly and linearly across increasing CO2 concentration. Along with C i , a steady increase in water use efficiency [WUEintrinsic (P n /g s ) and WUEinstantaneous (P n /E )] across various CO2 concentrations corresponded with the central role of restricted stomatal activity, a common response under ECO2 . Furthermore, P n had a significant quadratic relationship with the ECO2 (R 2 =0.489) and a significant and linear relationship with C i (R 2 =0.227). Relative humidity and vapour pressure deficit during the time of measurements remained at 70-85% and ~0.9-1.31kPa, respectively, at 26±2°C leaf temperature. Notably, not a single variety exhibited constant performance for any of the parameters across CO2 concentrations. Our results indicate that the potential photosynthesis can be increased up to 800ppm cassava varieties with high sink capacity can be cultivated under protected cultivation to attain higher productivity.
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Affiliation(s)
- V Ravi
- ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram 695 017, Kerala, India
| | - Saravanan Raju
- ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram 695 017, Kerala, India
| | - Sanket J More
- ICAR-Central Tuber Crops Research Institute, Thiruvananthapuram 695 017, Kerala, India; and ICAR-Directorate of Onion and Garlic Research, Pune 410 505, Maharashtra, India
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Manchanda V, Muralidharan J, Nischal N, Aggarwal K, Gupta S, Gupta N, Velayudhan A, Kaur H, Brijwal M, Chhabra M, Vishwanathan R, Dhodapkar R, Mahajan SK, Deol S, Sekhar JC, Mitra S, Saxena S, Kumar J, Garg A, Lodha R, Ravi V, Soneja M, Verghese VP, Rodrigues C. Approach towards surveillance-based diagnosis of acute respiratory illness in India: Expert recommendations. Indian J Med Microbiol 2024; 48:100548. [PMID: 38403268 DOI: 10.1016/j.ijmmb.2024.100548] [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: 12/22/2023] [Revised: 02/15/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND Emerging infectious diseases, often zoonotic, demand a collaborative "One-Health" surveillance approach due to human activities. The need for standardized diagnostic and surveillance algorithms is emphasized to address the difficulty in clinical differentiation and curb antimicrobial resistance. OBJECTIVE The present recommendations are comprehensive diagnostic and surveillance algorithm for ARIs, developed by the Indian Council of Medical Research (ICMR), which aims to enhance early detection and treatment with improved surveillance. This algorithm shall be serving as a blueprint for respiratory infections landscape in the country and early detection of surge of respiratory infections in the country. CONTENT The ICMR has risen up to the threat of emerging and re-emerging infections. Here, we seek to recommend a structured approach for diagnosing respiratory illnesses. The recommendations emphasize the significance of prioritizing respiratory pathogens based on factors such as the frequency of occurrence (seasonal or geographical), disease severity, ease of diagnosis and public health importance. The proposed surveillance-based diagnostic algorithm for ARI relies on a combination of gold-standard conventional methods, innovative serological and molecular techniques, as well as radiological approaches, which collectively contribute to the detection of various causative agents. The diagnostic part of the integrated algorithm can be dealt at the local microbiology laboratory of the healthcare facility with the few positive and negative specimens shipped to linked viral disease research laboratories (VRDLs) and other ICMR designated laboratories for genome characterisation, cluster identification and identification of novel agents.
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Affiliation(s)
- Vikas Manchanda
- Department of Microbiology, Maulana Azad Medical College, Delhi, India.
| | - Jayshree Muralidharan
- Department of Pediatric Medicine (Advanced Pediatric Centre), PGIMER, Chandigarh, India.
| | - Neeraj Nischal
- Department of Medicine, All India Institute of Medical Sciences (AIIMS), Delhi, India
| | - Kshitij Aggarwal
- Department of Pulmonary and Critical Care Medicine, Institute of Heart and Lung Diseases, Bahadurgarh, Haryana, India
| | - Swati Gupta
- Department of Radiodiagnosis, Maulana Azad Medical College, Delhi, India
| | - Nivedita Gupta
- Division of Epidemiology & Communicable Diseases, ICMR Headquarters, New Delhi, India
| | - Anoop Velayudhan
- Division of Epidemiology & Communicable Diseases, ICMR Headquarters, New Delhi, India
| | - Harmanmeet Kaur
- Division of Epidemiology & Communicable Diseases, ICMR Headquarters, New Delhi, India
| | - Megha Brijwal
- Department of Microbiology, All India Institute of Medical Sciences (AIIMS), Delhi, India
| | - Mala Chhabra
- Department of Microbiology, Atal Bihari Vajpayee Institute of Medical Sciences (ABVIMS) and Dr. Ram Manohar Lohia Hospital (RML), Delhi, India
| | | | | | - Sanjay K Mahajan
- Department of Medicine, Indira Gandhi Medical College & Hospital (IGMC), Shimla, India
| | - Saumya Deol
- Division of Epidemiology & Communicable Diseases, ICMR Headquarters, New Delhi, India
| | | | - Srestha Mitra
- Department of Microbiology, Maulana Azad Medical College, Delhi, India
| | - Sonal Saxena
- Department of Microbiology, Maulana Azad Medical College, Delhi, India
| | - Jyoti Kumar
- Department of Radiodiagnosis, Maulana Azad Medical College, Delhi, India
| | - Anju Garg
- Department of Radiodiagnosis, Maulana Azad Medical College, Delhi, India
| | - Rakesh Lodha
- Department of Pediatrics, All India Institute of Medical Sciences (AIIMS), Delhi, India
| | - V Ravi
- Department of Neurovirology, NIMHANS, Bengaluru, India
| | - Manish Soneja
- Department of Medicine, All India Institute of Medical Sciences (AIIMS), Delhi, India
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Yoder AK, Farooqi AS, Wernz C, Subramaniam A, Ravi V, Goepfert R, Sturgis EM, Mitra D, Bishop AJ, Guadagnolo BA. Outcomes after definitive treatment for cutaneous angiosarcomas of the face and scalp: Reevaluating the role of surgery and radiation therapy. Head Neck 2023. [PMID: 37272774 DOI: 10.1002/hed.27418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 06/06/2023] Open
Abstract
INTRODUCTION We investigated outcomes and prognostic factors for patients treated for cutaneous angiosarcoma (CA). METHODS We conducted a retrospective review of patients treated for CA of the face and scalp from 1962 to 2019. All received definitive treatment with surgery, radiation (RT), or a combination (S-XRT). The Kaplan-Meier method was used to estimate outcomes. Multivariable analyses were conducted using the Cox proportional hazards model. RESULTS For the 143 patients evaluated median follow-up was 33 months. Five-year LC was 51% and worse in patients with tumors >5 cm, multifocal tumors, those treated pre-2000, and with single modality therapy (SMT). These remained associated with worse LC on multivariable analysis. The 5-year disease-specific survival (DSS) for the cohort was 56%. Tumor size >5 cm, non-scalp primary site, treatment pre-2000, and SMT were associated with worse DSS. CONCLUSION Large or multifocal tumors are negative prognostic factors in patients with head and neck CA. S-XRT improved outcomes.
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Affiliation(s)
- A K Yoder
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - A S Farooqi
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - C Wernz
- Baylor College of Medicine, Houston, Texas, USA
| | - A Subramaniam
- Department of Sarcoma Medical Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - V Ravi
- Department of Sarcoma Medical Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - R Goepfert
- Department of Head and Neck Surgery, MD Anderson Cancer Center, Houston, Texas, USA
| | - E M Sturgis
- Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, Texas, USA
| | - D Mitra
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - A J Bishop
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas, USA
| | - B A Guadagnolo
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, Texas, USA
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Janardhanan M, Rakesh S, Savithri V, Aravind T, Mathew L, Ravi V. Melanotic Neuroectodermal Tumour of Infancy. Head Neck Pathol 2023; 17:509-514. [PMID: 36853558 PMCID: PMC10293543 DOI: 10.1007/s12105-023-01537-x] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 01/17/2023] [Indexed: 03/01/2023]
Abstract
Melanotic neuroectodermal tumour of infancy (MNTI) is a locally aggressive neoplasm of neural crest origin. It is primarily a paediatric tumour, and 95% of the cases occur in children below 1 year. The tumour mainly affects the head and neck region. It shows a predilection for the craniofacial sites and the most common site affected is anterior maxilla. Microscopically, it is characterized by a biphasic population of neuroblastic cells and pigmented epithelial cells. Although generally considered as a benign tumour, it can invade the adjacent muscle and bone, causing destruction of the involved site. The rapidity in growth and the aggressive clinical behaviour of the tumour can be deceptive and hence lack of familiarity with the clinical characteristics of the tumour may often lead to an erroneous diagnosis of malignancy. The treatment of choice for MNTI is excision, and it is usually curative. Extensive surgery in a child may interfere with the normal growth and development of the facial structures and reconstruction can be very challenging in infants. Hence, early diagnosis is critical for the effective management. Clinical findings, histopathological features, and differential diagnosis of a classic case of melanotic neuroectodermal tumour of infancy are discussed.
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Affiliation(s)
- Mahija Janardhanan
- Department of Oral & Maxillofacial Pathology, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, AIMS Campus, Ponekkara (P.O), Kochi, Kerala 682041 India
| | - S. Rakesh
- Department of Oral & Maxillofacial Pathology, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, AIMS Campus, Ponekkara (P.O), Kochi, Kerala 682041 India
| | - Vindhya Savithri
- Department of Oral & Maxillofacial Pathology, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, AIMS Campus, Ponekkara (P.O), Kochi, Kerala 682041 India
| | - Thara Aravind
- Department of Oral & Maxillofacial Pathology, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, AIMS Campus, Ponekkara (P.O), Kochi, Kerala 682041 India
| | - Lisha Mathew
- Department of Oral & Maxillofacial Pathology, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, AIMS Campus, Ponekkara (P.O), Kochi, Kerala 682041 India
| | - V. Ravi
- Department of Oral & Maxillofacial Surgery, Amrita School of Dentistry, Amrita Vishwa Vidyapeetham, AIMS Campus, Kochi, India
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Oliva Ramirez J, Lee Y, Rodriguez R, Tomczak K, Zhou X, Ravi V, Conley A, Ingram D, Livingston J, Ludwing J, Somaiah N, Haymaker C. 103P Analysis of resected liposarcoma tumors identifies CD73 as a potential therapeutic target. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.101140] [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: 04/05/2023] Open
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Ravi V, Murashima-Suginami A, Kiso H, Tokita Y, Huang C, Bessho K, Takagi J, Sugai M, Tabata Y, Takahashi K. Advances in tooth agenesis and tooth regeneration. Regen Ther 2023; 22:160-168. [PMID: 36819612 PMCID: PMC9931762 DOI: 10.1016/j.reth.2023.01.004] [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: 08/06/2022] [Revised: 12/19/2022] [Accepted: 01/12/2023] [Indexed: 02/05/2023] Open
Abstract
The lack of treatment options for congenital (0.1%) and partial (10%) tooth anomalies highlights the need to develop innovative strategies. Over two decades of dedicated research have led to breakthroughs in the treatment of congenital and acquired tooth loss. We revealed that by inactivating USAG-1, congenital tooth agenesis can be successfully ameliorated during early tooth development and that the inactivation promotes late-stage tooth morphogenesis in double knockout mice. Furthermore, Anti- USAG-1 antibody treatment in mice is effective in tooth regeneration and can be a breakthrough in treating tooth anomalies in humans. With approximately 0.1% of the population suffering from congenital tooth agenesis and 10% of children worldwide suffering from partial tooth loss, early diagnosis will improve outcomes and the quality of life of patients. Understanding the role of pathogenic USAG-1 variants, their interacting gene partners, and their protein functions will help develop critical biomarkers. Advances in next-generation sequencing, mass spectrometry, and imaging technologies will assist in developing companion and predictive biomarkers to help identify patients who will benefit from tooth regeneration.
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Affiliation(s)
- V. Ravi
- Toregem BioPharma Inc., Kyoto, Japan
| | - A. Murashima-Suginami
- Toregem BioPharma Inc., Kyoto, Japan,Department of Oral and Maxillofacial Surgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan,Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - H. Kiso
- Toregem BioPharma Inc., Kyoto, Japan,Department of Oral and Maxillofacial Surgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan,Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Y. Tokita
- Department of Disease Model, Institute for Developmental Research, Aichi Human Service Center, Kasugai, Aichi, Japan
| | - C.L. Huang
- Department of ThoracicSurgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan
| | - K. Bessho
- Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - J. Takagi
- Laboratory of Protein Synthesis and Expression, Institute for Protein Research, Osaka University, Osaka, Japan
| | - M. Sugai
- Department of Molecular Genetics, Division of Medicine, Faculty of Medical Sciences, University of Fukui, Fukui, Japan
| | - Y. Tabata
- Laboratory of Biomaterials, Institute for Frontier Life and Medical Sciences, Kyoto University, Kyoto, Japan
| | - K. Takahashi
- Toregem BioPharma Inc., Kyoto, Japan,Department of Oral and Maxillofacial Surgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, Osaka, Japan,Department of Oral and Maxillofacial Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan,Corresponding author. Department of Oral and Maxillofacial Surgery, Tazuke Kofukai Medical Research Institute, Kitano Hospital, 2-4-20, Ohgimachi, Kita-ku, Osaka, 530-8480, Japan. Fax: +81-6-6312-8867.
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Ravi V, Kapil A, Biswas S, Saxena S. Indian association of medical microbiologists (IAMM) position paper on guidelines for COVID and SARSCoV2 infections. Indian J Med Microbiol 2023; 42:53-54. [PMID: 36967217 PMCID: PMC9896976 DOI: 10.1016/j.ijmmb.2023.01.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 02/09/2023]
Affiliation(s)
- V. Ravi
- Department of Neurovirology, Registrar & Dean-Basic Sciences, NIMHANS, Bangalore 560029, India
| | - Arti Kapil
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Sanjay Biswas
- Dept. of Microbiology, TMH, Tata Memorial Centre and Joint Secretary-IAMM, India
| | - Sonal Saxena
- Department of Microbiology, Maulana Azad Medical College, New Delhi, India,Corresponding author
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Bhuyan H, Ravi V. An Integrated Framework with Deep Learning for Segmentation and Classification of Cancer Disease. INT J ARTIF INTELL T 2022. [DOI: 10.1142/s021821302340002x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Yoder A, Farooqi A, Wernz C, Subramaniam A, Zheng J, Ravi V, Goepfert R, Sturgis E, Mitra D, Bishop A, Guadagnolo B. Outcomes after Definitive Treatment for Cutaneous Angiosarcomas of the Face and Scalp: Re-Evaluating the Role of Combined Modality Treatment. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1821] [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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Bishop A, Zheng J, Subramaniam A, Ghia A, Wang C, Patel S, Guadagnolo B, Mitra D, Farooqi A, Kim B, Guha-Thakurta N, Li J, Ravi V. High Terminal Hemorrhage Risk From Cardiac Angiosarcoma Brain Metastases Warrants Frequent Brain Imaging and Early Intervention. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ravi V, Murphy R, Moverley R, Derias M, Phadnis J. 654 Outcome and Complications Following Revision Shoulder Arthroplasty. A Systematic Review and Meta-Analysis. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.931] [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] [Indexed: 11/13/2022]
Abstract
Abstract
Introduction
It is important to understand the rate of complications associated with the increasing burden of revision shoulder arthroplasty. Currently, this has not been well quantified. This review aims to address that deficiency with a focus on (i) shoulder outcome scores, (ii) complication and reoperation rates and (iii) comparison of anatomic and reverse prostheses when used in revision surgery.
Method
A PRISMA systematic review was performed to identify clinical data for patients undergoing revision shoulder arthroplasty. Data were extracted from the literature and pooled for analysis. Complication and reoperation rates were analysed using a meta-analysis of proportion and continuous variables underwent comparative subgroup analysis.
Results
107 studies (5,010 shoulders) were eligible for inclusion, although complete clinical data was not ubiquitous. Indications for revision included component loosening 20% (n = 584/2872), instability 20% (n = 577/2872), rotator cuff failure 18% (n = 528/2872) and infection 17% (n = 490/2872). Revision surgery resulted in a clinically important improvement in patient-reported outcome measures (PROMs). Intraoperative complication, postoperative complication and reoperation rates were 3% (n = 205/4919), 22% (n = 722/3474) and 15% (n = 533/3474) respectively. Intraoperative and postoperative complications included iatrogenic humeral fractures (n = 134/205, 65%) and instability (n = 209/772, 27%). Revision to reverse TSA, rather than revision to anatomic TSA from any index prosthesis resulted in lower complication rates (22% vs. 29%, p < 0.001 odds ratio 1.5) and superior Constant scores (59.9 vs. 53.8, p < 0.001), although no difference in ASES scores.
Conclusions
Satisfactory improvement in PROMs are reported following revision shoulder arthroplasty; however, revision surgery is associated with high complication rates and better outcomes may be evident following revision to reverse TSA.
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Affiliation(s)
- V Ravi
- Brighton and Sussex Medical School, Brighton, United Kingdom
| | - R Murphy
- Brighton and Sussex University Hospitals NHS trust, Brighton, United Kingdom
| | - R Moverley
- University Hospitals Dorset NHS Foundation Trust, Poole, United Kingdom
| | - M Derias
- Brighton and Sussex University Hospitals NHS trust, Brighton, United Kingdom
| | - J Phadnis
- Brighton and Sussex University Hospitals NHS trust, Brighton, United Kingdom
- Brighton and Sussex Medical School, Brighton, United Kingdom
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Dong DZ, Hallinan G, Nakar E, Ho AYQ, Hughes AK, Hotokezaka K, Myers ST, De K, Mooley KP, Ravi V, Horesh A, Kasliwal MM, Kulkarni SR. A transient radio source consistent with a merger-triggered core collapse supernova. Science 2021; 373:1125-1129. [PMID: 34516837 DOI: 10.1126/science.abg6037] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- D Z Dong
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA
| | - G Hallinan
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA
| | - E Nakar
- School of Physics and Astronomy, Tel Aviv University, Tel Aviv, 69978, Israel
| | - A Y Q Ho
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA.,Department of Astronomy, University of California, Berkeley, CA 94720, USA.,Miller Institute for Basic Research in Science, Berkeley, CA 94720, USA
| | - A K Hughes
- Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - K Hotokezaka
- Research Center for the Early Universe, Graduate School of Science, University of Tokyo, Bunkyo-ku Tokyo 113-033, Japan
| | - S T Myers
- National Radio Astronomy Observatory, Socorro, NM 87801, USA
| | - K De
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA
| | - K P Mooley
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA.,National Radio Astronomy Observatory, Socorro, NM 87801, USA
| | - V Ravi
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA
| | - A Horesh
- Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel
| | - M M Kasliwal
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA
| | - S R Kulkarni
- Division of Physics, Mathematics, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA
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Duong V, Bennell KL, Clifton-Bligh R, Deveza LA, Elliott JM, Guilak F, Hall M, Henderson LA, Hodges P, Johnstone B, Linklater J, Little CB, Lohmander LS, Maclachlan L, Mudge A, O'Leary S, Ravi V, Sterling M, Vicenzino B, Yu SP, Zaki S, Hunter DJ. Corrigendum to “Exploring translational gaps between basic scientists, clinical researchers, clinicians, and consumers: Proceedings and recommendations arising from the 2020 mine the gap online workshop” [Osteoarthritis Cartilage Open 29 (2021) 100163]. Osteoarthritis and Cartilage Open 2021; 3:100196. [DOI: 10.1016/j.ocarto.2021.100196] [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: 11/30/2022] Open
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Menon RR, Ravi V. An analysis of barriers affecting implementation of sustainable supply chain management in electronics industry: a Grey-DEMATEL approach. JM2 2021. [DOI: 10.1108/jm2-02-2021-0042] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Purpose
World over organizations are focusing on sustainable goals, where along with economic success their role in protecting the planet and people are becoming important. Whilst transforming the supply chain into a sustainable one, there would be some barriers which might hinder this process. This paper aims to study these barriers in the context of the electronics industry so that organizations can better implement sustainable supply chain programs.
Design/methodology/approach
In this research, barriers affecting sustainability implementation in the electronics supply chain are shortlisted from literature review and experts’ opinion. Using the combined methodology of Grey DEMATEL, the causal factors, the effect factors and degree of prominence of barriers is found out. The overall relationship among barriers is established by a diagraph. Sensitivity analysis is performed to check the robustness of the results.
Findings
It is found that lack of regulation and guidance from authorities is the primary causal barrier affecting operations of sustainable supply chain management. There are five barriers which fall in the influenced group and among them, complexity in measuring and monitoring sustainability practices has the largest net effect value on the implementation of a sustainable supply chain. The barrier having the highest correlation with other barriers is the high cost for disposal of hazardous wastes. The implications of these findings on managers and academicians is explored in the study.
Research limitations/implications
In this research, the number of barriers shortlisted is limited to 11 in the context of the electronics supply chain. More factors could be added in future research based on the industry being studied.
Originality/value
The research analyses 11 barriers under categories of policy, technology, financial and human resources in the Indian electronics industry by evaluating the cause and effect group of barriers. These results can guide policymakers of the electronic sector and industry for mitigating barriers during the implementation of sustainable programs.
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Affiliation(s)
- V Ravi
- Nodal Officer for Genomic Confirmation of SARS-CoV-2, Government of Karnataka, Retired Professor and Head, Department of Neurovirology, NIMHANS, Bengaluru, Karnataka, India
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Stacchiotti S, Miah AB, Frezza AM, Messiou C, Morosi C, Caraceni A, Antonescu CR, Bajpai J, Baldini E, Bauer S, Biagini R, Bielack S, Blay JY, Bonvalot S, Boukovinas I, Bovee JVMG, Boye K, Brodowicz T, Callegaro D, De Alava E, Deoras-Sutliff M, Dufresne A, Eriksson M, Errani C, Fedenko A, Ferraresi V, Ferrari A, Fletcher CDM, Garcia Del Muro X, Gelderblom H, Gladdy RA, Gouin F, Grignani G, Gutkovich J, Haas R, Hindi N, Hohenberger P, Huang P, Joensuu H, Jones RL, Jungels C, Kasper B, Kawai A, Le Cesne A, Le Grange F, Leithner A, Leonard H, Lopez Pousa A, Martin Broto J, Merimsky O, Merriam P, Miceli R, Mir O, Molinari M, Montemurro M, Oldani G, Palmerini E, Pantaleo MA, Patel S, Piperno-Neumann S, Raut CP, Ravi V, Razak ARA, Reichardt P, Rubin BP, Rutkowski P, Safwat AA, Sangalli C, Sapisochin G, Sbaraglia M, Scheipl S, Schöffski P, Strauss D, Strauss SJ, Sundby Hall K, Tap WD, Trama A, Tweddle A, van der Graaf WTA, Van De Sande MAJ, Van Houdt W, van Oortmerssen G, Wagner AJ, Wartenberg M, Wood J, Zaffaroni N, Zimmermann C, Casali PG, Dei Tos AP, Gronchi A. Epithelioid hemangioendothelioma, an ultra-rare cancer: a consensus paper from the community of experts. ESMO Open 2021; 6:100170. [PMID: 34090171 PMCID: PMC8182432 DOI: 10.1016/j.esmoop.2021.100170] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [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: 04/14/2021] [Revised: 05/07/2021] [Accepted: 05/11/2021] [Indexed: 12/22/2022] Open
Abstract
Epithelioid hemangioendothelioma (EHE) is an ultra-rare, translocated, vascular sarcoma. EHE clinical behavior is variable, ranging from that of a low-grade malignancy to that of a high-grade sarcoma and it is marked by a high propensity for systemic involvement. No active systemic agents are currently approved specifically for EHE, which is typically refractory to the antitumor drugs used in sarcomas. The degree of uncertainty in selecting the most appropriate therapy for EHE patients and the lack of guidelines on the clinical management of the disease make the adoption of new treatments inconsistent across the world, resulting in suboptimal outcomes for many EHE patients. To address the shortcoming, a global consensus meeting was organized in December 2020 under the umbrella of the European Society for Medical Oncology (ESMO) involving >80 experts from several disciplines from Europe, North America and Asia, together with a patient representative from the EHE Group, a global, disease-specific patient advocacy group, and Sarcoma Patient EuroNet (SPAEN). The meeting was aimed at defining, by consensus, evidence-based best practices for the optimal approach to primary and metastatic EHE. The consensus achieved during that meeting is the subject of the present publication. This consensus paper provides key recommendations on the management of epithelioid hemangioendothelioma (EHE). Recommendations followed a consensus meeting between experts and a representative of the EHE advocacy group and SPAEN. Authorship includes a multidisciplinary group of experts from different institutions from Europe, North America and Asia.
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Affiliation(s)
- S Stacchiotti
- Adult Mesenchymal Tumor and Rare Cancer Unit, Cancer Medicine Department, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy.
| | - A B Miah
- The Royal Marsden Hospital and The Institute of Cancer Research, London, UK
| | - A M Frezza
- Adult Mesenchymal Tumor and Rare Cancer Unit, Cancer Medicine Department, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - C Messiou
- Department of Radiology, The Royal Marsden Hospital and The Institute of Cancer Research, London, UK
| | - C Morosi
- Radiology Department, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - A Caraceni
- Palliative Care Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - C R Antonescu
- Department of Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, USA
| | - J Bajpai
- Medical Oncology Department, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, India
| | - E Baldini
- Department of Radiation Oncology, Dana-Farber Cancer Center/Brigham and Women's Hospital, Boston, USA
| | - S Bauer
- Department of Medical Oncology, West German Cancer Center, Sarcoma Center, University of Duisburg-Essen, University Hospital, Essen, Germany
| | - R Biagini
- Orthopaedic Department, Regina Elena National Cancer Institute, Rome, Italy
| | - S Bielack
- Klinikum Stuttgart - Olgahospital, Zentrum für Kinder-, Jugend- und Frauenmedizin, Stuttgart Cancer Center, Pädiatrische Onkologie, Hämatologie, Immunologie, Stuttgart, Germany
| | - J Y Blay
- Department of Medical Oncology, Centre Leon Berard, Université Claude Bernard Lyon, Unicancer, Lyon, France
| | - S Bonvalot
- Department of Surgical Oncology, Institut Curie, Université Paris Sciences et Lettres, Paris, France
| | | | - J V M G Bovee
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - K Boye
- Department of Oncology, Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway
| | - T Brodowicz
- Medical University Vienna & General Hospital Department of Internal Medicine 1/Oncology, Vienna, Austria
| | - D Callegaro
- Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - E De Alava
- Institute of Biomedicine of Sevilla (IBiS), Virgen del Rocio University Hospital/CSIC/University of Sevilla/CIBERONC, Seville, Spain; Department of Normal and Pathological Cytology and Histology, School of Medicine, University of Seville, Seville, Spain
| | | | - A Dufresne
- Department of Medical Oncology, Centre Leon Berard, Université Claude Bernard Lyon, Unicancer, Lyon, France
| | - M Eriksson
- Department of Oncology, Skane University Hospital and Lund University, Lund, Sweden
| | - C Errani
- Orthopaedic Service, Musculoskeletal Oncology Department, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - A Fedenko
- Medical Oncology Division, P.A. Herzen Cancer Research Institute, Moscow, Russian Federation
| | - V Ferraresi
- Sarcomas and Rare Tumors Unit, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - A Ferrari
- Paediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - C D M Fletcher
- Department of Pathology Brigham & Women's Hospital, Boston, USA
| | - X Garcia Del Muro
- University of Barcelona and Genitourinary Cancer and Sarcoma Unit Institut Català d'Oncologia, Hospitalet, Barcelona, Spain
| | - H Gelderblom
- Department of Medical Oncology, Leiden University Medical Center, Leiden, The Netherlands
| | - R A Gladdy
- University of Toronto and Lunenfeld-Tanenbaum Research Institute, Toronto, Canada
| | - F Gouin
- Department of Surgery, Centre Leon Berard, Lyon, France
| | - G Grignani
- Division of Medical Oncology, Candiolo Cancer Institute, FPO - IRCCS, Candiolo, Italy
| | - J Gutkovich
- The EHE Foundation, Wisconsin, USA; NUY Langone Medical Center, New York, USA
| | - R Haas
- Department of Radiotherapy, the Netherlands Cancer Institute, Amsterdam, the Netherlands; Department of Radiotherapy, the Leiden University Medical Center, Leiden, the Netherlands
| | - N Hindi
- Group of Advanced Therapies and Biomarkers in Sarcoma, Institute of Biomedicine of Seville (IBIS, HUVR, CSIC, Universidad de Sevilla), Seville, Spain
| | - P Hohenberger
- Division of Surgical Oncology & Thoracic Surgery, Mannheim University Medical Center, University of Heidelberg, Heidelberg, Germany
| | - P Huang
- Division of Molecular Pathology, The Institute of Cancer Research, London, UK
| | - H Joensuu
- Department of Oncology, Helsinki University Hospital & Helsinki University, Helsinki, Finland
| | - R L Jones
- Department of Cancer, The Royal Marsden Hospital and The Institute of Cancer Research, London, UK
| | - C Jungels
- Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - B Kasper
- University of Heidelberg, Mannheim University Medical Center, Sarcoma Unit, Mannheim, Germany
| | - A Kawai
- Musculoskeletal Oncology and Rehabilitation Medicine, Rare Cancer Center National Cancer Center Hospital, Tokyo, Japan
| | - A Le Cesne
- International Department, Gustave Roussy, Villejuif, France
| | - F Le Grange
- UCLH - University College London Hospitals NHS Foundation Trust, London, UK
| | - A Leithner
- Department of Orthopaedics and Trauma Medical University Graz, Graz, Austria
| | - H Leonard
- Chair of Trustees of the EHE Rare Cancer Charity (UK), Charity number 1162472
| | - A Lopez Pousa
- Medical Oncology Department, Hospital Universitario Santa Creu i Sant Pau, Barcelona, Spain
| | - J Martin Broto
- Hospital Universitario Fundación Jimenez Diaz, Madrid, Spain
| | - O Merimsky
- Unit of Soft Tissue and Bone Oncology, Division of Oncology, Tel-Aviv Medical Center affiliated with Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - P Merriam
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - R Miceli
- Department of Clinical Epidemiology and Trial Organisation, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - O Mir
- Sarcoma Group, Gustave Roussy, Villejuif, France
| | - M Molinari
- University of Pittsburgh Medical Center, Thomas Starzl Transplant Institute, Pittsburgh, USA
| | | | - G Oldani
- Division of Abdominal Surgery, University Hospitals of Geneva, Geneva, Switzerland
| | - E Palmerini
- Chemotherapy Unit, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - M A Pantaleo
- Division of Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - S Patel
- Sarcoma Center, The University of Texas M.D. Anderson Cancer Center, Houston, USA
| | | | - C P Raut
- Department of Surgery, Brigham and Women's Hospital, Boston, USA; Center for Sarcoma and Bone Oncology, Harvard Medical School, Boston, USA; Dana Farber Cancer Center, Harvard Medical School, Boston, USA
| | - V Ravi
- Sarcoma Center, The University of Texas M.D. Anderson Cancer Center, Houston, USA
| | - A R A Razak
- Princess Margaret Cancer Centre and Sinai Healthcare System & Faculty of Medicine, University of Toronto, Toronto, Canada
| | - P Reichardt
- Helios Klinikum Berlin-Buch, Department of Oncology and Palliative Care, Berlin, Germany
| | - B P Rubin
- Robert J. Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, USA
| | - P Rutkowski
- Maria Sklodowska-Curie National Research Institute of Oncology, Department of Soft Tissue/Bone Sarcoma and Melanoma, Warsaw, Poland
| | - A A Safwat
- Aarhus University Hospital, Aarhus, Denmark
| | - C Sangalli
- Department of Radiation Oncology, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - G Sapisochin
- Multi-Organ Transplant and HPB Surgical Oncology, Division of General Surgery, Department of Surgery, University of Toronto, Toronto, Canada
| | - M Sbaraglia
- Department of Pathology, Azienda Ospedaliera Università Padova, Padua, Italy
| | - S Scheipl
- Department of Orthopaedics and Trauma, Medical University of Graz, Graz, Austria
| | | | - D Strauss
- Department of Surgery, The Royal Marsden Hospital and The Institute of Cancer Research, London, UK
| | - S J Strauss
- University College London Hospital, London, UK
| | - K Sundby Hall
- Department of Oncology, Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway
| | - W D Tap
- Department of Medicine, Memorial Sloan Kettering Cancer Center and Weill Cornell Medical College, New York, USA
| | - A Trama
- Department of Research, Evaluative Epidemiology Unit, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - A Tweddle
- Palliative Care, The Royal Marsden Hospital and The Institute of Cancer Research London
| | - W T A van der Graaf
- Department of Medical Oncology, Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - M A J Van De Sande
- Department of Orthopedic Surgery Bone and Soft Tissue Tumor Unit, Leiden University Medical Center, Leiden, The Netherlands
| | - W Van Houdt
- Sarcoma and Melanoma Unit, The Netherlands Cancer Institute, Amsterdam, The Netherlands
| | - G van Oortmerssen
- Co-Chair of Sarcoma Patients EuroNet (SPAEN), Woelfersheim, Germany & Chairman of the Dutch organisation for sarcoma patients (Patiëntenplatform Sarcomen), Guest researcher at Leiden University (Leiden Institute for Advanced Computer Science), Leiden University, Leiden, The Netherlands
| | - A J Wagner
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, USA
| | - M Wartenberg
- Chair of the Board of Directors of Sarcoma Patients EuroNet (SPAEN), Sarcoma Patients EuroNet (SPAEN), Woelfersheim, Germany
| | - J Wood
- The Royal Marsden NHS Foundation Trust, London, UK
| | - N Zaffaroni
- Molecular Pharmacology Unit, Department of Applied Research and Technological Development, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - C Zimmermann
- Department of Supportive Care, Princess Margaret Cancer Centre and Division of Palliative Medicine, Department of Medicine, University of Toronto, Toronto, Canada
| | - P G Casali
- Adult Mesenchymal Tumor and Rare Cancer Unit, Cancer Medicine Department, Fondazione IRCCS Istituto Nazionale Tumori, Milan, Italy
| | - A P Dei Tos
- Department of Pathology, Azienda Ospedaliera Università Padova, Padua, Italy
| | - A Gronchi
- Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
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Duong V, Bennell KL, Clifton-Bligh R, Deveza LA, Elliott JM, Guilak F, Hall M, Henderson LA, Hodges P, Johnstone B, Linklater J, Little CB, Lohmander LS, Maclachlan L, Mudge A, O’Leary S, Ravi V, Sterling M, Vicenzino B, Yu SP, Zaki S, Hunter DJ. Exploring translational gaps between basic scientists, clinical researchers, clinicians, and consumers: Proceedings and recommendations arising from the 2020 mine the gap online workshop. Osteoarthritis and Cartilage Open 2021; 3:100163. [DOI: 10.1016/j.ocarto.2021.100163] [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] [Received: 01/19/2021] [Revised: 03/11/2021] [Accepted: 03/15/2021] [Indexed: 10/21/2022] Open
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18
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Das S, Hong Z, Stoica VA, Gonçalves MAP, Shao YT, Parsonnet E, Marksz EJ, Saremi S, McCarter MR, Reynoso A, Long CJ, Hagerstrom AM, Meyers D, Ravi V, Prasad B, Zhou H, Zhang Z, Wen H, Gómez-Ortiz F, García-Fernández P, Bokor J, Íñiguez J, Freeland JW, Orloff ND, Junquera J, Chen LQ, Salahuddin S, Muller DA, Martin LW, Ramesh R. Author Correction: Local negative permittivity and topological phase transition in polar skyrmions. Nat Mater 2021; 20:905. [PMID: 33627832 DOI: 10.1038/s41563-021-00962-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- S Das
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA.
- Department of Physics, University of California, Berkeley, CA, USA.
| | - Z Hong
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - V A Stoica
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - M A P Gonçalves
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Esch/Alzette, Luxemburg
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
- Physics and Materials Science Research Unit, University of Luxembourg, Belvaux, Luxembourg
| | - Y T Shao
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA
| | - E Parsonnet
- Department of Physics, University of California, Berkeley, CA, USA
| | - E J Marksz
- National Institute of Standards and Technology, Boulder, CO, USA
| | - S Saremi
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - M R McCarter
- Department of Physics, University of California, Berkeley, CA, USA
| | - A Reynoso
- Department of Physics, University of California, Berkeley, CA, USA
| | - C J Long
- National Institute of Standards and Technology, Boulder, CO, USA
| | - A M Hagerstrom
- National Institute of Standards and Technology, Boulder, CO, USA
| | - D Meyers
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - V Ravi
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - B Prasad
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - H Zhou
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - Z Zhang
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - H Wen
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - F Gómez-Ortiz
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
| | - P García-Fernández
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
| | - J Bokor
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA
| | - J Íñiguez
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Esch/Alzette, Luxemburg
- Physics and Materials Science Research Unit, University of Luxembourg, Belvaux, Luxembourg
| | - J W Freeland
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - N D Orloff
- National Institute of Standards and Technology, Boulder, CO, USA
| | - J Junquera
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
| | - L Q Chen
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - S Salahuddin
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA
| | - D A Muller
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA
- Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY, USA
| | - L W Martin
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - R Ramesh
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA.
- Department of Physics, University of California, Berkeley, CA, USA.
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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Thakar M, Saxena V, Janakiram N, Ravi V, Desai A, Singh S, Shivanna N, Minz RY, Singh A, Chatterjee M, Madkaikar M, Bembalkar S, Mukherjee A, Mahesh V. Reference Ranges of Different Lymphocyte Subsets in Indian Children: A Multi-Centric Study. Indian Pediatr 2021; 58:424-429. [PMID: 33980728] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To determine the reference ranges of various lymphocyte subsets in healthy Indian children. DESIGN Descriptive cross-sectional study. SETTING Four centers in India representing four geographical regions. PARTICIPANTS 1104 children from neonatal age to 18 years of age. MEASUREMENT One time measurement of absolute count and percentages of different lymphocyte subsets i.e. T lymphocytes (CD3+T, CD4+T, CD8+T cells), B lymphocytes (CD19+B cells) and Natural Killer lymphocytes (CD15/16+NK cells) in whole blood using multicolor flow cytometry. RESULTS The absolute cell counts of various lymphocytes were found to increase from newborn to 10 months of age, followed by gradual decline until 18 years; however, the proportion of immune cells remained largely similar. Gender did not have a significant impact on the reference ranges, whereas counts were found to vary as per the geographical locations. CONCLUSIONS These reference ranges will be useful to monitor and predict the immune status in pediatric population. The variation in region wise ranges could be confirmed by testing more number of samples in the specific age groups.
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Affiliation(s)
- Madhuri Thakar
- ICMR-National AIDS Research Institute, Pune, Maharashtra, India. Correspondence to: Dr Madhuri Thakar, Head and Scientist-F, Department of Immunology and Serology, ICMR, National AIDS Research Institute, Plot No. 73, G-Block, MIDC, Bhosari, Pune-411026, Maharashtra, India.
| | - Vandana Saxena
- ICMR-National AIDS Research Institute, Pune, Maharashtra, India
| | - Nalini Janakiram
- Indira Gandhi Institute of Child Health, Bengaluru, Karnataka, India
| | - V Ravi
- National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Anita Desai
- National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Surjit Singh
- Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Niranjan Shivanna
- Indira Gandhi Institute of Child Health, Bengaluru, Karnataka, India
| | - Ranjana Y Minz
- Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Arun Singh
- Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Mitali Chatterjee
- Institute of Post Graduate Medical Education and Research, Kolkata, West Bengal, India
| | - Manisha Madkaikar
- ICMR-National Institute of Immunohematology, Mumbai, Maharashtra, India
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20
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Das S, Hong Z, Stoica VA, Gonçalves MAP, Shao YT, Parsonnet E, Marksz EJ, Saremi S, McCarter MR, Reynoso A, Long CJ, Hagerstrom AM, Meyers D, Ravi V, Prasad B, Zhou H, Zhang Z, Wen H, Gómez-Ortiz F, García-Fernández P, Bokor J, Íñiguez J, Freeland JW, Orloff ND, Junquera J, Chen LQ, Salahuddin S, Muller DA, Martin LW, Ramesh R. Local negative permittivity and topological phase transition in polar skyrmions. Nat Mater 2021; 20:194-201. [PMID: 33046856 DOI: 10.1038/s41563-020-00818-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 09/01/2020] [Indexed: 06/11/2023]
Abstract
Topological solitons such as magnetic skyrmions have drawn attention as stable quasi-particle-like objects. The recent discovery of polar vortices and skyrmions in ferroelectric oxide superlattices has opened up new vistas to explore topology, emergent phenomena and approaches for manipulating such features with electric fields. Using macroscopic dielectric measurements, coupled with direct scanning convergent beam electron diffraction imaging on the atomic scale, theoretical phase-field simulations and second-principles calculations, we demonstrate that polar skyrmions in (PbTiO3)n/(SrTiO3)n superlattices are distinguished by a sheath of negative permittivity at the periphery of each skyrmion. This enhances the effective dielectric permittivity compared with the individual SrTiO3 and PbTiO3 layers. Moreover, the response of these topologically protected structures to electric field and temperature shows a reversible phase transition from the skyrmion state to a trivial uniform ferroelectric state, accompanied by large tunability of the dielectric permittivity. Pulsed switching measurements show a time-dependent evolution and recovery of the skyrmion state (and macroscopic dielectric response). The interrelationship between topological and dielectric properties presents an opportunity to simultaneously manipulate both by a single, and easily controlled, stimulus, the applied electric field.
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Affiliation(s)
- S Das
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA.
- Department of Physics, University of California, Berkeley, CA, USA.
| | - Z Hong
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
- Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, PA, USA
| | - V A Stoica
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - M A P Gonçalves
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Esch/Alzette, Luxemburg
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
- Physics and Materials Science Research Unit, University of Luxembourg, Belvaux, Luxembourg
| | - Y T Shao
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA
| | - E Parsonnet
- Department of Physics, University of California, Berkeley, CA, USA
| | - E J Marksz
- National Institute of Standards and Technology, Boulder, CO, USA
| | - S Saremi
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - M R McCarter
- Department of Physics, University of California, Berkeley, CA, USA
| | - A Reynoso
- Department of Physics, University of California, Berkeley, CA, USA
| | - C J Long
- National Institute of Standards and Technology, Boulder, CO, USA
| | - A M Hagerstrom
- National Institute of Standards and Technology, Boulder, CO, USA
| | - D Meyers
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - V Ravi
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - B Prasad
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
| | - H Zhou
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - Z Zhang
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - H Wen
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - F Gómez-Ortiz
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
| | - P García-Fernández
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
| | - J Bokor
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA
| | - J Íñiguez
- Materials Research and Technology Department, Luxembourg Institute of Science and Technology (LIST), Esch/Alzette, Luxemburg
- Physics and Materials Science Research Unit, University of Luxembourg, Belvaux, Luxembourg
| | - J W Freeland
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL, USA
| | - N D Orloff
- National Institute of Standards and Technology, Boulder, CO, USA
| | - J Junquera
- Departamento de Ciencias de la Tierra y Física de la Materia Condensada, Universidad de Cantabria, Cantabria Campus Internacional, Santander, Spain
| | - L Q Chen
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA
| | - S Salahuddin
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, USA
| | - D A Muller
- School of Applied and Engineering Physics, Cornell University, Ithaca, NY, USA
- Kavli Institute at Cornell for Nanoscale Science, Ithaca, NY, USA
| | - L W Martin
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - R Ramesh
- Department of Materials Science and Engineering, University of California, Berkeley, CA, USA.
- Department of Physics, University of California, Berkeley, CA, USA.
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
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Babu K, Murthy KR, Bhagya M, Murthy PR, Puttamallesh VN, Ravi V. Seroprevalence of Lymes disease in the Nagarahole and Bandipur forest areas of South India. Indian J Ophthalmol 2020; 68:100-105. [PMID: 31856481 PMCID: PMC6951209 DOI: 10.4103/ijo.ijo_943_19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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] [Indexed: 01/01/2023] Open
Abstract
Purpose: The aim of this study was to determine the seroprevalence of Lymes disease in a population at risk in south India. Methods: Prospective ongoing study and included screening of forest workers and staff of Nagarahole and Bandipur forest ranges in South India for Lymes disease. Screening included a detailed questionnaire for Lymes disease, complete ocular and systemic examination by an ophthalmologist and infectious disease specialist and blood collection. ELISA for IgM and IgG antibodies for Borrelia burgdorferi were performed on the collected sera samples. Western blot confirmation was done on the seropositive samples. Ticks were also collected from these forest areas for future studies to detect if they harbor B. burgdorferi. Results: Seroprevalence of 19.9% was noted by ELISA. Western blot confirmation was seen in 15.6% of the seropositive samples. There was significant correlation between seropositivity and exposure to tick bites (P = 0.023). Conclusion: There is a high seroprevalence of infection with B. burgdorferi in the forest areas of Nagarahole and Bandipur ranges in south India.
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Affiliation(s)
- Kalpana Babu
- Department of Uveitis and Ocular Inflammation, Vittala International Institute of Ophthalmology and Prabha Eye Clinic and Research Centre, Bengaluru, Karnataka, India
| | - Krishna R Murthy
- Department of Uveitis and Ocular Inflammation, Vittala International Institute of Ophthalmology and Prabha Eye Clinic and Research Centre, Bengaluru; Department of Clinical Research, Institute of Bioinformatics, Bengaluru; Department of Clinical Research, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - M Bhagya
- Department of Uveitis and Ocular Inflammation, Vittala International Institute of Ophthalmology and Prabha Eye Clinic and Research Centre, Bengaluru, Karnataka, India
| | - Praveen R Murthy
- Department of Uveitis and Ocular Inflammation, Vittala International Institute of Ophthalmology and Prabha Eye Clinic and Research Centre, Bengaluru, Karnataka, India
| | - Vinuth N Puttamallesh
- Department of Uveitis and Ocular Inflammation, Vittala International Institute of Ophthalmology and Prabha Eye Clinic and Research Centre; Department of Clinical Research, Institute of Bioinformatics, Bengaluru, Karnataka, India
| | - V Ravi
- Department of Neurovirology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
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Bochenek CD, Ravi V, Belov KV, Hallinan G, Kocz J, Kulkarni SR, McKenna DL. A fast radio burst associated with a Galactic magnetar. Nature 2020; 587:59-62. [DOI: 10.1038/s41586-020-2872-x] [Citation(s) in RCA: 229] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/21/2020] [Indexed: 11/09/2022]
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Frezza A, Ravi V, Lo Vullo S, Tolomeo F, Wei-Wu Chen T, Teterycz P, Baldi G, Italiano A, Penel N, Brunello A, Duffaud F, Hindi N, Iwata S, Smrke A, Fedenko A, Gelderblom H, Van Der Graaf W, Vozy A, Vincenzi B, Stacchiotti S. 1627MO Systemic therapies in advanced epithelioid haemangioendothelioma (EHE): A retrospective international series from the World Sarcoma Network. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Shu CC, Zaki S, Ravi V, Schiavinato A, Smith MM, Little CB. The relationship between synovial inflammation, structural pathology, and pain in post-traumatic osteoarthritis: differential effect of stem cell and hyaluronan treatment. Arthritis Res Ther 2020; 22:29. [PMID: 32059749 PMCID: PMC7023816 DOI: 10.1186/s13075-020-2117-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 10/30/2019] [Accepted: 02/06/2020] [Indexed: 01/02/2023] Open
Abstract
Background Synovitis is implicated in the severity and progression of pain and structural pathology of osteoarthritis (OA). Increases in inflammatory or immune cell subpopulations including macrophages and lymphocytes have been reported in OA synovium, but how the particular subpopulations influence symptomatic or structural OA disease progression is unclear. Two therapies, hyaluronan (HA) and mesenchymal stem cells (MSCs), have demonstrated efficacy in some clinical settings: HA acting as device to improve joint function and provide pain relief, while MSCs may have immunomodulatory and disease-modifying effects. We used these agents to investigate whether changes in pain sensitization or structural damage were linked to modulation of the synovial inflammatory response in post-traumatic OA. Methods Skeletally mature C57BL6 male mice underwent medial-meniscal destabilisation (DMM) surgery followed by intra-articular injection of saline, a hyaluronan hexadecylamide derivative (Hymovis), bone marrow-derived stem cells (MSCs), or MSC + Hymovis. We quantified the progression of OA-related cartilage, subchondral bone and synovial histopathology, and associated pain sensitization (tactile allodynia). Synovial lymphocytes, monocyte/macrophages and their subpopulations were quantified by fluorescent-activated cell sorting (FACS), and the expression of key inflammatory mediators and catabolic enzyme genes quantified by real-time polymerase chain reaction (PCR). Results MSC but not Hymovis significantly reduced late-stage (12-week post-DMM) cartilage proteoglycan loss and structural damage. Allodynia was initially reduced by both treatments but significantly better at 8 and 12 weeks by Hymovis. Chondroprotection by MSCs was not associated with specific changes in synovial inflammatory cell populations but rather regulation of post-injury synovial Adamts4, Adamts5, Mmp3, and Mmp9 expression. Reduced acute post-injury allodynia with all treatments coincided with decreased synovial macrophage and T cell numbers, while longer-term effect on pain sensitization with Hymovis was associated with increased M2c macrophages. Conclusions This therapeutic study in mice demonstrated a poor correlation between cartilage, bone or synovium (histo)pathology, and pain sensitization. Changes in the specific synovial inflammatory cell subpopulations may be associated with chronic OA pain sensitization, and a novel target for symptomatic treatment.
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Affiliation(s)
- Cindy C Shu
- Raymond Purves Bone and Joint Laboratory, Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Level 10 Kolling Building - B6, Royal North Shore Hospital, St. Leonards, NSW, 2065, Australia
| | - Sanaa Zaki
- Raymond Purves Bone and Joint Laboratory, Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Level 10 Kolling Building - B6, Royal North Shore Hospital, St. Leonards, NSW, 2065, Australia
| | - Varshini Ravi
- Raymond Purves Bone and Joint Laboratory, Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Level 10 Kolling Building - B6, Royal North Shore Hospital, St. Leonards, NSW, 2065, Australia
| | | | - Margaret M Smith
- Raymond Purves Bone and Joint Laboratory, Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Level 10 Kolling Building - B6, Royal North Shore Hospital, St. Leonards, NSW, 2065, Australia
| | - Christopher B Little
- Raymond Purves Bone and Joint Laboratory, Institute of Bone and Joint Research, Kolling Institute, Faculty of Medicine and Health, University of Sydney, Level 10 Kolling Building - B6, Royal North Shore Hospital, St. Leonards, NSW, 2065, Australia.
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25
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Kumar M, Singh A, Garg R, Goel M, Ravi V. Hypertension during pregnancy and risk of stillbirth: challenges in a developing country. J Matern Fetal Neonatal Med 2019; 34:3915-3921. [PMID: 31875739 DOI: 10.1080/14767058.2019.1702943] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Objective: To explore the factors associated with hypertensive disorders of pregnancy (HDP) in women experiencing stillbirth (SB).Material and methods: It was an observational, analytical case-control study, done as part of the World Health Organization South-East Asian Region Office SB project. The epidemiological profile, history, clinical features, and investigations of stillborn cases having HDP were noted, an equal number of age and parity matched subjects with HDP having livebirth were taken as controls.Results: Out of 46,816 deliveries, 1239 (26.2/1000) were stillborn. The maternal causes contributed 374/1239 (30.2%) stillbirths according to the CODAC classification, HDP was the most common maternal cause (304/1239, 24.9%). Subjects with HDP were included as cases. On comparing the cases with controls it was found that significantly more number of cases had inadequate antenatal visits (p < .001, OR -4.8), two or more abortions (p < .001, OR -1.9), early onset of hypertension (p < .0001, OR -5.6) and complications such as fetal growth restriction (FGR) (p < .001, OR -2.3) and abruption (p < .001, OR -4.0). Women with preeclampsia were less likely to have SB compared to those with gestational or chronic hypertension (p = .0001, OR -2.3). The birth weight/placental weight ratio of more than eight had the highest odds ratio regarding contribution to SB among hypertensive women (p = .0001 OR -6.7).Conclusion: In women with HDP, adequate antenatal care would lead to the prevention of complications such as anemia, abruption, and FGR, and thus prevent SB. The high BW/PW ratio is a potential marker of risk of SB.
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Affiliation(s)
| | - Abha Singh
- Lady Hardinge Medical College, New Delhi, India
| | - Rashi Garg
- Lady Hardinge Medical College, New Delhi, India
| | - Manish Goel
- Lady Hardinge Medical College, New Delhi, India
| | - V Ravi
- Lady Shri Ram College for Women, New Delhi, India
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Tsimberidou A, Hong D, Fu S, Karp D, Piha-Paul S, Kies M, Ravi V, Subbiah V, Patel S, Tu SM, Janku F, Heymach J, Johnson A, Zhang J, Berry D, Vining D, Futreal A, Miller V, Meric-Bernstam F, Zhao L. Precision medicine: Preliminary results from the initiative for molecular profiling and advanced cancer therapy 2 (IMPACT 2) study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz244.011] [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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27
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Loong HHF, Mennel R, Wagner M, Tse T, Lau YM, Yuen C, Moore R, Kwan MFR, Cutler D, Kramer D, Chan WK, Ravi V. A pilot study of oral paclitaxel (ORAXOL) in subjects with cutaneous angiosarcomas (KX-ORAX-010). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz283.066] [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: 11/13/2022] Open
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28
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Chan E, Ibarra S, Reul R, Ravi V, Shapira O, Kim M, Reardon M. P2.15-08 Multicenter Experience with Complete Surgical Resection of Primary Pulmonary Artery Sarcoma. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1862] [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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29
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Jones R, Ravi V, Brohl A, Chawla S, Ganjoo K, Italiano A, Attia S, Burgess M, Thornton K, Cranmer L, Liu L, Theuer C, Maki R. Results of the TAPPAS trial: An adaptive enrichment phase III trial of TRC105 and pazopanib (P) versus pazopanib alone in patients with advanced angiosarcoma (AS). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz283] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Ibarra S, Chan E, Reul R, Kim M, Macgillivray T, Ravi V, Reardon M. P1.15-06 Resection of Thoracic Paragangliomas: A Multicenter Experience. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1219] [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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31
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Ghosh A, Mullapudi T, Bomanna S, Tyagi BK, Ravi V, Desai A. Understanding the mechanism of Chikungunya virus vector competence in three species of mosquitoes. Med Vet Entomol 2019; 33:375-387. [PMID: 30913314 DOI: 10.1111/mve.12376] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/28/2018] [Accepted: 02/25/2019] [Indexed: 06/09/2023]
Abstract
Chikungunya virus (CHIKV) is primarily transmitted by Aedes spp. mosquitoes. The present study investigated vector competence for CHIKV in Aedes aegypti and Aedes albopictus mosquitoes found in Madurai, South India. The role of receptor proteins on midguts contributing to permissiveness of CHIKV to Aedes spp. mosquitoes was also undertaken. Mosquitoes were orally infected with CHIKV DRDE-06. Infection of midguts and dissemination to heads was confirmed by immunofluorescence assay at different time points. A plaque assay was performed from mosquito homogenates at different time points to study CHIKV replication. Presence of putative CHIKV receptor proteins on mosquito midgut epithelial cells was detected by virus overlay protein binding assay (VOPBA). The identity of these proteins was established using mass spectrometry. CHIKV infection of Ae. aegypti and Ae. albopictus midguts and dissemination to heads was observed to be similar. A plaque assay performed with infected mosquito homogenates revealed that CHIKV replication dynamics was similar in Aedes sp. mosquitoes until 28 days post infection. VOPBA performed with mosquito midgut membrane proteins revealed that prohibitin could serve as a putative CHIKV receptor on Aedes mosquito midguts, whereas an absence of CHIKV binding protein/s on Culex quinquefasciatus midguts can partially explain the non-permissiveness of these mosquitoes to infection.
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Affiliation(s)
- A Ghosh
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, Karnataka, India
| | - T Mullapudi
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, Karnataka, India
| | - S Bomanna
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, Karnataka, India
| | - B K Tyagi
- Centre for Research in Medical Entomology, Madurai, Tamil Nadu, India
| | - V Ravi
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, Karnataka, India
| | - A Desai
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, Karnataka, India
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32
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Ravi V, Catha M, D'Addario L, Djorgovski SG, Hallinan G, Hobbs R, Kocz J, Kulkarni SR, Shi J, Vedantham HK, Weinreb S, Woody DP. A fast radio burst localized to a massive galaxy. Nature 2019; 572:352-354. [PMID: 31266051 DOI: 10.1038/s41586-019-1389-7] [Citation(s) in RCA: 195] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 06/25/2019] [Indexed: 11/09/2022]
Abstract
Intense, millisecond-duration bursts of radio waves (named fast radio bursts) have been detected from beyond the Milky Way1. Their dispersion measures-which are greater than would be expected if they had propagated only through the interstellar medium of the Milky Way-indicate extragalactic origins and imply contributions from the intergalactic medium and perhaps from other galaxies2. Although several theories exist regarding the sources of these fast radio bursts, their intensities, durations and temporal structures suggest coherent emission from highly magnetized plasma3,4. Two of these bursts have been observed to repeat5,6, and one repeater (FRB 121102) has been localized to the largest star-forming region of a dwarf galaxy at a cosmological redshift of 0.19 (refs. 7-9). However, the host galaxies and distances of the hitherto non-repeating fast radio bursts are yet to be identified. Unlike repeating sources, these events must be observed with an interferometer that has sufficient spatial resolution for arcsecond localization at the time of discovery. Here we report the localization of a fast radio burst (FRB 190523) to a few-arcsecond region containing a single massive galaxy at a redshift of 0.66. This galaxy is different from the host of FRB 121102, as it is a thousand times more massive, with a specific star-formation rate (the star-formation rate divided by the mass) a hundred times smaller.
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Affiliation(s)
- V Ravi
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA. .,Center for Astrophysics, Harvard and Smithsonian, Cambridge, MA, USA.
| | - M Catha
- Owens Valley Radio Observatory, California Institute of Technology, Big Pine, CA, USA
| | - L D'Addario
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - S G Djorgovski
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - G Hallinan
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - R Hobbs
- Owens Valley Radio Observatory, California Institute of Technology, Big Pine, CA, USA
| | - J Kocz
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - S R Kulkarni
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - J Shi
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - H K Vedantham
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA.,ASTRON, Netherlands Institute for Radio Astronomy, Dwingeloo, The Netherlands
| | - S Weinreb
- Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, USA
| | - D P Woody
- Owens Valley Radio Observatory, California Institute of Technology, Big Pine, CA, USA
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Sharma S, Panneerselvam P, Castillo R, Manohar S, Raj R, Ravi V, Buresh RJ. Web-based tool for calculating field-specific nutrient management for rice in India. Nutr Cycl Agroecosyst 2018; 113:21-33. [PMID: 32684798 PMCID: PMC7357723 DOI: 10.1007/s10705-018-9959-x] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 10/15/2018] [Indexed: 05/24/2023]
Abstract
Site-specific nutrient management (SSNM) can be an alternative to a recommendation for uniform fertilizer use across a rice (Oryza sativa L.) production system within a country or region of a country. We developed a web-based decision support tool named Nutrient Manager for Rice (NMR), which used principles of SSNM to calculate fertilizer N, P, and K rates for individual fields based on a target yield set for each field. It also used expected growth duration of the rice variety, crop establishment method, and age of transplanted seedlings to calculate days after rice establishment for each of three applications of fertilizer N. NMR enabled P rates to match estimated removal of P with harvested grain and crop residue for the target yield set for each field. We compared field-specific fertilizer recommendations from NMR with uniform application of fertilizer provided by an existing blanket fertilizer recommendation for irrigated inbred rice (BFR) and farmer's fertilizer practices (FFP) in on-farm trials conducted in 74 irrigated rice fields across three growing seasons in the Cauvery Delta, Tamil Nadu, India. Grain yield was 0.6-0.7 Mg ha-1 higher (P ≤ 0.05) with NMR than FFP in two of the three seasons, even though total fertilizer cost was comparable or less with NMR. Yield was comparable for NMR and BFR, but NMR reduced fertilizer N and P rates and total fertilizer cost compared to BFR. Use of NMR rather than BFR also had less risk of financial loss for a farmer. The likelihood of financial loss with a switch from FFP to BFR averaged 31%. It reduced to 18% with a switch from FFP to NMR. NMR facilitated the calculation of field-specific fertilizer N, P, and K management practices, which increased fertilizer use efficiency without loss in rice yield compared to a recommended uniform fertilizer management across fields.
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Affiliation(s)
| | | | - Rowena Castillo
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | | | - Rajendran Raj
- Coconut Research Station, Tamil Nadu Agricultural University, Veppankulam, Thanjavur, Tamil Nadu India
| | - V Ravi
- Tamil Nadu Rice Research Institute, Tamil Nadu Agricultural University, Aduthurai, Thanjavur, Tamil Nadu India
| | - Roland J Buresh
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
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Damodar T, Dias M, Mani R, Shilpa KA, Anand AM, Ravi V, Tiewsoh J. Clinical and laboratory profile of dengue viral infections in and around Mangalore, India. Indian J Med Microbiol 2018; 35:256-261. [PMID: 28681816 DOI: 10.4103/ijmm.ijmm_15_423] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND Dengue (DEN) is being recognised as the world's major emerging tropical disease. Clinically, DEN may resemble other infections such as malaria, leptospirosis, and typhoid, and thus, laboratory investigations are required for definitive diagnosis. Secondary DEN infection, caused most often by dengue virus (DENV) serotypes 2 and 3, is known to present with severe disease manifestations. This study was undertaken to examine the clinical and laboratory profile of DEN viral infections and to determine the circulating serotypes in and around Mangalore, India. MATERIALS AND METHODS Serum samples from 285 clinically suspected cases of DEN in and around Mangalore between September 2013 and January 2014 were processed for detection of DEN IgM and IgG antibodies and nonstructural 1 (NS1) antigen using commercial ELISA kits. Detection of DEN viral RNA and serotyping was done by multiplex real-time reverse-transcriptase polymerase chain reaction (RT-PCR). The clinical and haematological profiles of the patients were analysed. RESULTS Serum samples from 83 (29%) patients were positive for DEN NS1 antigen and/or IgM antibodies. 33 (45%) out of 73 serum samples processed by multiplex real-time RT-PCR were positive for DEN viral RNA. DEN-1, -2 and -3 were the serotypes identified in this study. Fever was the most common presenting symptom followed by myalgia/arthralgia. Majority of the patients had thrombocytopaenia. CONCLUSION Early detection of DEN can be achieved effectively using NS1 ELISA and IgM capture ELISA. Circulating DENV serotypes should be closely monitored for prevention of fatal outcomes in secondary infections.
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Affiliation(s)
- Tina Damodar
- Department of Microbiology, Father Muller Medical College, Mangalore, India
| | - Meena Dias
- Department of Microbiology, Father Muller Medical College, Mangalore, India
| | - Reeta Mani
- Department of Neurovirology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - K A Shilpa
- Department of Neurovirology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Ashwini Manoor Anand
- Department of Neurovirology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - V Ravi
- Department of Neurovirology, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India
| | - Jutang Tiewsoh
- Department of Microbiology, Father Muller Medical College, Mangalore, India
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Kung LHW, Ravi V, Rowley L, Angelucci C, Fosang AJ, Bell KM, Little CB, Bateman JF. Cartilage MicroRNA Dysregulation During the Onset and Progression of Mouse Osteoarthritis Is Independent of Aggrecanolysis and Overlaps With Candidates From End-Stage Human Disease. Arthritis Rheumatol 2018; 70:383-395. [DOI: 10.1002/art.40378] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 11/10/2017] [Indexed: 01/13/2023]
Affiliation(s)
| | - Varshini Ravi
- University of Sydney and Royal North Shore Hospital; St. Leonards New South Wales Australia
| | - Lynn Rowley
- Murdoch Children's Research Institute; Parkville Victoria Australia
| | | | - Amanda J. Fosang
- Murdoch Children's Research Institute and University of Melbourne; Parkville Victoria Australia
| | - Katrina M. Bell
- Murdoch Children's Research Institute; Parkville Victoria Australia
| | - Christopher B. Little
- University of Sydney and Royal North Shore Hospital; St. Leonards New South Wales Australia
| | - John F. Bateman
- Murdoch Children's Research Institute and University of Melbourne; Parkville Victoria Australia
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Kung LHW, Ravi V, Rowley L, Bell KM, Little CB, Bateman JF. Comprehensive Expression Analysis of microRNAs and mRNAs in Synovial Tissue from a Mouse Model of Early Post-Traumatic Osteoarthritis. Sci Rep 2017; 7:17701. [PMID: 29255152 PMCID: PMC5735155 DOI: 10.1038/s41598-017-17545-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 10/02/2017] [Accepted: 11/19/2017] [Indexed: 01/15/2023] Open
Abstract
To better understand the molecular processes involved in driving osteoarthritis disease progression we characterized expression profiles of microRNAs (miRNA) and mRNAs in synovial tissue from a post-traumatic OA mouse model. OA was induced in 10–12 week old male C57BL6 mice by bilateral surgical destabilization of the medial meniscus (DMM). RNA isolated from the anterior synovium of mice at 1 and 6 weeks post-surgery was subject to expression profiling using Agilent microarrays and qPCR. OA severity was determined histologically. Anterior and posterior synovitis decreased with post-operative time after sham and DMM. No differences in synovitis parameters were evident between sham and DMM in the anterior synovium at either time. While expression profiling revealed 394 miRNAs were dysregulated between 1 and 6 week time-points in the anterior synovium, there were no significant changes in miRNA or mRNA expression between DMM and sham mice at both time-points. Bioinformatic analysis of the miRNAs and mRNAs differentially expressed in tandem with the resolution of anterior synovial inflammation revealed similar biological processes and functions, including organismal injury, connective tissue disorder and inflammatory responses. Our data demonstrates that early OA-specific patterns of synovial miRNAs or mRNAs dysregulation could not be identified in this model of post-traumatic OA.
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Affiliation(s)
- Louise H W Kung
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia
| | - Varshini Ravi
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Institute of Bone and Joint Research, University of Sydney, St Leonards, New South Wales, 2065, Australia
| | - Lynn Rowley
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia
| | - Katrina M Bell
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Institute of Bone and Joint Research, University of Sydney, St Leonards, New South Wales, 2065, Australia.
| | - John F Bateman
- Murdoch Childrens Research Institute, Parkville, Victoria, 3052, Australia.,Department of Biochemistry and Molecular Biology, University of Melbourne, Parkville, Victoria, 3052, Australia
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Liu X, Machado GC, Eyles JP, Ravi V, Hunter DJ. Dietary supplements for treating osteoarthritis: a systematic review and meta-analysis. Br J Sports Med 2017; 52:167-175. [PMID: 29018060 DOI: 10.1136/bjsports-2016-097333] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/06/2017] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To investigate the efficacy and safety of dietary supplements for patients with osteoarthritis. DESIGN An intervention systematic review with random effects meta-analysis and meta-regression. DATA SOURCES MEDLINE, EMBASE, Cochrane Register of Controlled Trials, Allied and Complementary Medicine and Cumulative Index to Nursing and Allied Health Literature were searched from inception to April 2017. STUDY ELIGIBILITY CRITERIA Randomised controlled trials comparing oral supplements with placebo for hand, hip or knee osteoarthritis. RESULTS Of 20 supplements investigated in 69 eligible studies, 7 (collagen hydrolysate, passion fruit peel extract, Curcuma longa extract, Boswellia serrata extract, curcumin, pycnogenol and L-carnitine) demonstrated large (effect size >0.80) and clinically important effects for pain reduction at short term. Another six (undenatured type II collagen, avocado soybean unsaponifiables, methylsulfonylmethane, diacerein, glucosamine and chondroitin) revealed statistically significant improvements on pain, but were of unclear clinical importance. Only green-lipped mussel extract and undenatured type II collagen had clinically important effects on pain at medium term. No supplements were identified with clinically important effects on pain reduction at long term. Similar results were found for physical function. Chondroitin demonstrated statistically significant, but not clinically important structural improvement (effect size -0.30, -0.42 to -0.17). There were no differences between supplements and placebo for safety outcomes, except for diacerein. The Grading of Recommendations Assessment, Development and Evaluation suggested a wide range of quality evidence from very low to high. CONCLUSIONS The overall analysis including all trials showed that supplements provided moderate and clinically meaningful treatment effects on pain and function in patients with hand, hip or knee osteoarthritis at short term, although the quality of evidence was very low. Some supplements with a limited number of studies and participants suggested large treatment effects, while widely used supplements such as glucosamine and chondroitin were either ineffective or showed small and arguably clinically unimportant treatment effects. Supplements had no clinically important effects on pain and function at medium-term and long-term follow-ups.
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Affiliation(s)
- Xiaoqian Liu
- Department of Rheumatology, Royal North Shore Hospital, St Leonards, Australia.,Institute of Bone and Joint Research, The Kolling Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - Gustavo C Machado
- Sydney Medical School, The George Institute for Global Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Jillian P Eyles
- Department of Rheumatology, Royal North Shore Hospital, St Leonards, Australia.,Institute of Bone and Joint Research, The Kolling Institute, The University of Sydney, Sydney, New South Wales, Australia.,Department of Physiotherapy, Sydney Medical School, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - Varshini Ravi
- Department of Rheumatology, Royal North Shore Hospital, St Leonards, Australia.,Institute of Bone and Joint Research, The Kolling Institute, The University of Sydney, Sydney, New South Wales, Australia
| | - David J Hunter
- Department of Rheumatology, Royal North Shore Hospital, St Leonards, Australia.,Institute of Bone and Joint Research, The Kolling Institute, The University of Sydney, Sydney, New South Wales, Australia
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Goobar A, Amanullah R, Kulkarni SR, Nugent PE, Johansson J, Steidel C, Law D, Mörtsell E, Quimby R, Blagorodnova N, Brandeker A, Cao Y, Cooray A, Ferretti R, Fremling C, Hangard L, Kasliwal M, Kupfer T, Lunnan R, Masci F, Miller AA, Nayyeri H, Neill JD, Ofek EO, Papadogiannakis S, Petrushevska T, Ravi V, Sollerman J, Sullivan M, Taddia F, Walters R, Wilson D, Yan L, Yaron O. iPTF16geu: A multiply imaged, gravitationally lensed type Ia supernova. Science 2017; 356:291-295. [PMID: 28428419 DOI: 10.1126/science.aal2729] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 03/24/2017] [Indexed: 11/02/2022]
Abstract
We report the discovery of a multiply imaged, gravitationally lensed type Ia supernova, iPTF16geu (SN 2016geu), at redshift z = 0.409. This phenomenon was identified because the light from the stellar explosion was magnified more than 50 times by the curvature of space around matter in an intervening galaxy. We used high-spatial-resolution observations to resolve four images of the lensed supernova, approximately 0.3 arc seconds from the center of the foreground galaxy. The observations probe a physical scale of ~1 kiloparsec, smaller than is typical in other studies of extragalactic gravitational lensing. The large magnification and symmetric image configuration imply close alignment between the lines of sight to the supernova and to the lens. The relative magnifications of the four images provide evidence for substructures in the lensing galaxy.
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Affiliation(s)
- A Goobar
- Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden.
| | - R Amanullah
- Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - S R Kulkarni
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - P E Nugent
- Department of Astronomy, University of California, Berkeley, CA 94720, USA.,MS 50B-4206, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - J Johansson
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - C Steidel
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - D Law
- Space Telescope Science Institute, Baltimore, MD 21218, USA
| | - E Mörtsell
- Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - R Quimby
- Department of Astronomy, San Diego State University, San Diego, CA 92182, USA.,Kavli IPMU (WPI), University of Tokyo Institutes for Advanced Study, Kashiwa, Chiba 277-8583, Japan
| | - N Blagorodnova
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - A Brandeker
- Department of Astronomy, Stockholm University, Albanova, SE 10691 Stockholm, Sweden
| | - Y Cao
- eScience Institute and Department of Astronomy, University of Washington, Seattle, WA 98195, USA
| | - A Cooray
- Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - R Ferretti
- Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - C Fremling
- Oskar Klein Centre, Department of Astronomy, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - L Hangard
- Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - M Kasliwal
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - T Kupfer
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - R Lunnan
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA.,Department of Astronomy, Stockholm University, Albanova, SE 10691 Stockholm, Sweden
| | - F Masci
- Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA
| | - A A Miller
- Center for Interdisciplinary Exploration and Research in Astrophysics and Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA.,Adler Planetarium, Chicago, IL 60605, USA
| | - H Nayyeri
- Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - J D Neill
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - E O Ofek
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel
| | - S Papadogiannakis
- Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - T Petrushevska
- Oskar Klein Centre, Department of Physics, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - V Ravi
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - J Sollerman
- Oskar Klein Centre, Department of Astronomy, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - M Sullivan
- Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ, UK
| | - F Taddia
- Oskar Klein Centre, Department of Astronomy, Stockholm University, Albanova University Center, SE 106 91 Stockholm, Sweden
| | - R Walters
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - D Wilson
- Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - L Yan
- Cahill Center for Astrophysics, California Institute of Technology, Pasadena, CA 91125, USA
| | - O Yaron
- Department of Particle Physics and Astrophysics, Weizmann Institute of Science, Rehovot 7610001, Israel
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Ravi V, Madison R, Schrock AB, Cote G, Millis S, Alvarez R, Choy E, Katz D, Chung J, Gay L, Miller VA, Ross JS, Ali SM, Schnitt S. Abstract P2-12-01: Comprehensive genomic profiling of 34 cases of breast angiosarcoma. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p2-12-01] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Angiosarcoma of the breast (BAS) is a rare but lethal neoplasia, either arising de novo or secondary to radiation therapy, with incidence of the latter disease increasing. We queried a database of more than 70,000 advanced cancer patients assayed with comprehensive genomic profiling (CGP) in the course of clinical care to uncover the frequency, type and associated genomic alterations (GA) in BAS and to highlight possible routes to benefit from targeted therapy.
Methods: CGP was performed for 34 BAS cases using a hybrid-capture, adaptor ligation based next generation sequencing assay of up to 315 genes to a mean coverage depth of >500X. The results were analyzed for base substitutions, short insertions and deletions, selected rearrangements, and copy number changes. RNA sequencing for 265 genes was also performed for 24 cases. Limited clinical histories from submitted pathology reports were reviewed under IRB permission.
Results: Clinical specimens from 34 BAS patients, all females, were assayed. The cases harbored 87 total GA for a mean of 2.59 per case, 25% of which were copy number amplifications. The most commonly altered genes were MYC (41%, 14/34), PIK3CA (26%, 9/34), and KDR (26%, 9/34). All MYC alterations were amplifications with a mean copy number of 39, and alterations in other MYC family members (MYCN and MYCL1) were not observed. KDR was recurrently altered as T771R (7/9) and T771K (1/9) and amplified in one case (1/9).
MYC and KDR alterations were mutually exclusive (p<0.0001). 6/14 MYC amplified cases had prior histories of breast carcinoma, with 3/6 noted as being treated with radiation therapy. For the remainder of MYC amplified cases (8/14), no relevant clinical history was available.
Two cases harboring gene fusions were identified including CIC-MEGF8 and NTRK1-PEAR1. Two rearrangements of potential functional significance including CIC-DEDD2 and HT-ALK (exon1 HT - exon5-29 ALK including kinase domain) were also observed. The case harboring HT-ALK also had MYC amplification and known prior radiation therapy. Two other MYC amplified cases also harbored targetable kinase alterations, including FLT4 amplification (described as targetable in Ravi et al JNCCN 2016) and FGFR3 S249C, a known activating mutation.
Conclusions: MYC amplification defines over 40% (14/34) of advanced BAS cases. Of MYC amplified cases, 28% (4/14) harbored targetable alterations of tyrosine kinases including a potential novel ALK fusion. FLT4 amplification only co-occurred with MYC amplification, but this result was not statistically significant in this small series. KDR and MYC alteration were mutually exclusive, and 45% of non-MYC altered cases (9/20) harbored KDR alterations, which were predominantly mutations of T771. Further clinico-pathologic correlation, particularly history of radiation therapy, will be explored in this series, as well defining BAS that harbor neither MYC nor KDR alterations.
Citation Format: Ravi V, Madison R, Schrock AB, Cote G, Millis S, Alvarez R, Choy E, Katz D, Chung J, Gay L, Miller VA, Ross JS, Ali SM, Schnitt S. Comprehensive genomic profiling of 34 cases of breast angiosarcoma [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P2-12-01.
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Affiliation(s)
- V Ravi
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - R Madison
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - AB Schrock
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - G Cote
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - S Millis
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - R Alvarez
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - E Choy
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - D Katz
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - J Chung
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - L Gay
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - VA Miller
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - JS Ross
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - SM Ali
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
| | - S Schnitt
- Foundation Medicine, Inc; Massachusetts General Hospital; Dana Farber Cancer Institute; Southeastern Regional Medical Center; Beth Israel Deaconness Medical Center; Hadassah-Hebrew University Medical Center
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Abstract
Purpose
This paper aims to analyze the interaction among the major variables of reverse logistics seen in automobile industries.
Design/methodology/approach
In this research, interpretive structural modeling (ISM) has been used to understand mutual influences among identified variables of reverse logistics. The advantage of the ISM methodology is that variables can be categorized depending upon their driving power and dependence.
Findings
Regulations make it mandatory for automobile companies to own responsibility of products manufactured throughout their life cycle by collecting and reusing products, reducing volume of waste generated, increasing the use of recycled materials, etc. For example, End-of-Life Vehicle Directive had directed manufacturers to take back their vehicles at the end of their usefulness and responsibly dispose them. In this research, regulation has appeared at bottom of the ISM model, indicating that it has high driving power to influence other variables. Also, financial limitations are a significant inhibitor faced by the top management for implementing reverse logistics programs.
Research limitations/implications
The ISM methodology relies upon expert opinions for developing contextual relation among identified variables. Thus, an expert’s knowledge, his familiarity with industry and its operations may have affected the final results of the ISM model. One of research implications of this study is that variables identified in this ISM model are quite generic, and thus, with marginal adjustments, these can be used in the context of any other supply chain for increasing its productivity and performance.
Practical implications
The ISM model reveals that regulations affect a significant number of enabler variables of reverse logistics like support of policy entrepreneurs, green purchasing by companies, information and communication technologies that are seen at the upper level of ISM. This indicates that regulations force companies to be proactive towards product recovery actions that lead to initiation of reverse logistics programs by them.
Originality/value
This research has tried to analyze the interaction among the major variables of reverse logistics typically seen in automobile industries which could be useful to logistics managers for taking strategic-level decisions.
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41
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Ravi V, Shannon RM, Bailes M, Bannister K, Bhandari S, Bhat NDR, Burke-Spolaor S, Caleb M, Flynn C, Jameson A, Johnston S, Keane EF, Kerr M, Tiburzi C, Tuntsov AV, Vedantham HK. The magnetic field and turbulence of the cosmic web measured using a brilliant fast radio burst. Science 2016; 354:1249-1252. [PMID: 27856844 DOI: 10.1126/science.aaf6807] [Citation(s) in RCA: 150] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 10/27/2016] [Indexed: 11/02/2022]
Abstract
Fast radio bursts (FRBs) are millisecond-duration events thought to originate beyond the Milky Way galaxy. Uncertainty surrounding the burst sources, and their propagation through intervening plasma, has limited their use as cosmological probes. We report on a mildly dispersed (dispersion measure 266.5 ± 0.1 parsecs per cubic centimeter), exceptionally intense (120 ± 30 janskys), linearly polarized, scintillating burst (FRB 150807) that we directly localize to 9 square arc minutes. On the basis of a low Faraday rotation (12.0 ± 0.7 radians per square meter), we infer negligible magnetization in the circum-burst plasma and constrain the net magnetization of the cosmic web along this sightline to <21 nanogauss, parallel to the line-of-sight. The burst scintillation suggests weak turbulence in the ionized intergalactic medium.
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Affiliation(s)
- V Ravi
- Cahill Center for Astronomy and Astrophysics, MC249-17, California Institute of Technology, Pasadena, CA 91125, USA.
| | - R M Shannon
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, NSW 1710, Australia. .,International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia
| | - M Bailes
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, VIC 3122, Australia.,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - K Bannister
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, NSW 1710, Australia
| | - S Bhandari
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, VIC 3122, Australia.,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - N D R Bhat
- International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia.,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - S Burke-Spolaor
- National Radio Astronomy Observatory, Array Operations Center, Post Office Box 0, Socorro, NM 87801-0387, USA
| | - M Caleb
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, VIC 3122, Australia.,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia.,Research School of Astronomy and Astrophysics, Australian National University, ACT 2611, Australia
| | - C Flynn
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, VIC 3122, Australia.,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - A Jameson
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, VIC 3122, Australia.,ARC Centre of Excellence for All-sky Astrophysics (CAASTRO), Australia
| | - S Johnston
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, NSW 1710, Australia
| | - E F Keane
- Square Kilometer Array (SKA) Organisation, Jodrell Bank Observatory, SK11 9DL, UK
| | - M Kerr
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, NSW 1710, Australia
| | - C Tiburzi
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - A V Tuntsov
- Manly Astrophysics, 3/22 Cliff Street, Manly NSW 2095, Australia
| | - H K Vedantham
- Cahill Center for Astronomy and Astrophysics, MC249-17, California Institute of Technology, Pasadena, CA 91125, USA
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Matam K, Goud I, Lakshmi M AM, Ravi V, Sridhar K, Vijayanand PR, Chakravarthy S, Prasad SVSS, Tabassum SN, Shaik NA, Syed R, Alharbi KK, Khan IA. Correlation between EGFR Gene Mutations and Lung Cancer: a Hospital-Based Study. Asian Pac J Cancer Prev 2016; 16:7071-6. [PMID: 26514492 DOI: 10.7314/apjcp.2015.16.16.7071] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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
Epidermal growth factor receptor (EGFR) is one of the targeted molecular markers in many cancers including lung malignancies. Gefitinib and erlotinib are two available therapeutics that act as specific inhibitors of tyrosine kinase (TK) domains. We performed a case-control study with formalin-fixed paraffin-embedded tissue blocks (FFPE) from tissue biopsies of 167 non-small cell lung carcinoma (NSCLC) patients and 167 healthy controls. The tissue biopsies were studied for mutations in exons 18-21 of the EGFR gene. This study was performed using PCR followed by DNA sequencing. We identified 63 mutations in 33 men and 30 women. Mutations were detected in exon 19 (delE746-A750, delE746-T751, delL747-E749, delL747-P753, delL747-T751) in 32 patients, exon 20 (S786I, T790M) in 16, and exon 21 (L858R) in 15. No mutations were observed in exon 18. The 63 patients with EFGR mutations were considered for upfront therapy with oral tyrosine kinase inhibitor (TKI) drugs and have responded well to therapy over the last 15 months. The control patients had no mutations in any of the exons studied. The advent of EGFR TKI therapy has provided a powerful new treatment modality for patients diagnosed with NSCLC. The study emphasizes the frequency of EGFR mutations in NSCLC patients and its role as an important predictive marker for response to oral TKI in the south Indian population.
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Affiliation(s)
- Kavitha Matam
- Molecular Biology and Cytogenetics Department, Apollo Health city Building, Apollo Hospitals, Jubilee Hills, Hyderabad, India E-mail :
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Kumar M, Singh S, Sharma K, Singh R, Ravi V, Bhattacharya J. Adverse fetal outcome: is first trimester ultrasound and Doppler better predictor than biomarkers? J Matern Fetal Neonatal Med 2016; 30:1410-1416. [PMID: 27430153 DOI: 10.1080/14767058.2016.1214709] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AIMS AND OBJECTIVES To evaluate the predictive value of first trimester biomarkers and ultrasound in determining adverse fetal outcomes in a low risk Asian population. MATERIAL AND METHOD All low risk, singleton pregnancies between 11 and 14 weeks gestation underwent ultrasound with uterine artery Doppler along with PAPP-A and free β-hCG estimation, and were followed till delivery to observe the outcome. The adverse fetal outcomes detected were structural anomaly, aneuploidy, intrauterine growth restriction, preterm birth and stillbirth (SB). RESULTS Out of 3500 women screened, 417 cases had adverse fetal outcome in the absence of maternal complication, 2151 had normal outcome. Major structural anomaly was detected in first trimester in 17/28 (60.7%) cases. The most important markers for adverse fetal outcome were increased uterine artery pulsatility index (UPI) (p = 0.028, OR 1.5, 95% CI: 1.05-2.38, AUC 0.56) for IUGR, nuchal translucency (p = 0.001, OR 1.7, 95% CI: 1.11-2.77, AUC 0.60) for major anomaly and low PAPP-A (p = 0.017, OR -0.075, 95% CI: 0.87-0.98, AUC 0.621) for SB. CONCLUSION UPI, NT and PAPP-A in the first trimester are significant markers of adverse fetal outcome, although the sensitivity and specificity are not high they have a high negative predictive value.
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Affiliation(s)
| | | | | | - Ritu Singh
- d Department of Biochemistry , LHMC , New Delhi , India , and
| | - V Ravi
- e Lady Sri Ram College , New Delhi , India
| | - J Bhattacharya
- d Department of Biochemistry , LHMC , New Delhi , India , and
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Markway BD, Cho H, Anderson DE, Holden P, Ravi V, Little CB, Johnstone B. Reoxygenation enhances tumour necrosis factor alpha-induced degradation of the extracellular matrix produced by chondrogenic cells. Eur Cell Mater 2016; 31:425-39. [PMID: 27341301 DOI: 10.22203/ecm.v031a27] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been considered as a potential source for cell-based therapies in arthritic diseases for both their chondrogenic and anti-inflammatory properties. Thus, we examined how MSC-based neocartilage responds to tumour necrosis factor alpha (TNF-α) compared to articular chondrocyte (AC)-based neocartilage. Since oxygen tension is altered in arthritic joints, we also examined how increased oxygen tension influences this process. Monolayer-expanded healthy human ACs and bone marrow MSCs were cultured in chondrogenic medium in three-dimensional culture under hypoxia. They were then exposed to TNF-α under hypoxic or increased oxygen tension. We found no inherent anti-inflammatory potential of MSC-derived neocartilage as it pertains to the enzymes studied here: more degradative enzymes were upregulated by TNF-α in MSCs than in ACs, regardless of the oxygen tension. MSCs were also more sensitive to reoxygenation during TNF-α exposure, as indicated by increased proteoglycan loss, increased aggrecanase-generated metabolites, and further upregulation of the major aggrecanases, ADAMTS4 and ADAMTS5. There was also evidence of matrix metalloproteinase (MMP)-mediated aggrecan interglobular domain cleavage and type II collagen loss in response to TNF-α in both MSCs and ACs, but more MMPs were further upregulated by reoxygenation in MSCs than in ACs. Our study provides further evidence that consideration of oxygen tension is essential for studying cartilage degradation; for example, neocartilage produced from MSCs may be more sensitive to the negative effects of repeated hypoxia/reoxygenation events than AC-derived neocartilage. Consideration of the differences in responses may be important for cell-based therapies and selection of adjunctive chondroprotective agents.
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Affiliation(s)
- B D Markway
- Department of Orthopaedics and Rehabilitation, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd, OP31, Portland, OR,
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Kumar M, Sharma K, Singh R, Singh S, Ravi V, Singh K, Gupta U, Bhattacharya J. Role of maternal factors, PAPP-A, and Doppler in screening for early- and late-onset pregnancy hypertension in Asian population. Hypertens Pregnancy 2016; 35:382-93. [PMID: 27136371 DOI: 10.3109/10641955.2016.1161766] [Citation(s) in RCA: 8] [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] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To determine the predictive value of biochemical markers, uterine artery Doppler, and maternal factors in predicting early-onset (EO) and late-onset (LO) pregnancy hypertension. METHODOLOGY All singleton pregnancies between 11 and 13 weeks and 6 days gestation underwent estimation of body mass index (BMI), mean arterial pressure (MAP), uterine artery Doppler pulsatality index (PI, and resistance index), biomarker PAPP-A, and free β-hCG. Women who developed hypertension were treated as cases and normotensives were taken as controls. The cases were further divided into EO and LO hypertension. The comparison was undertaken by appropriate statistical analysis. RESULTS Pregnancy hypertension was seen in 399 (13.2%) women. EO hypertension was seen in 153 (38.3%), whereas LO was observed in 246 (61.7%). The significant markers for predicting hypertension in pregnancy were maternal age, BMI, MAP, uterine artery Doppler PI, and PAPP-A. A combination of MAP and BMI was a better predictor (sensitivity and specificity 80% and 52%, respectively) than PAPP-A and Doppler combined (sensitivity and specificity 62% and 52%, respectively). When all the above markers were combined, the sensitivity and specificity of the test was 73% and 70%, respectively. EO hypertension was better predicted compared with LO. The negative predictive value (NPV) of the test was above 90%, suggesting that if a woman had the marker below the cutoff, there was more than 90% chance that she would not develop hypertension later in pregnancy. CONCLUSION A combination of variables increased the sensitivity and specificity of the test for hypertension in pregnancy. The markers examined were a predictor of EO hypertension, with a high NPV, making it a good screening test.
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Affiliation(s)
- Manisha Kumar
- a Department of Obstetrics and Gynecology , Lady Hardinge Medical College , New Delhi , India
| | - Karuna Sharma
- b Department of Biochemistry , Lady Hardinge Medical College , New Delhi , India
| | - Ritu Singh
- b Department of Biochemistry , Lady Hardinge Medical College , New Delhi , India
| | - Shalini Singh
- c Division of Reproductive Biology and Maternal Health, Indian Council of Medical Research , New Delhi , India
| | - V Ravi
- d Department of Statistics , Lady Sri Ram College , New Delhi , India
| | - Kamlesh Singh
- e Department of Biostatistics , King George's Medical University , Lucknow , India
| | - Usha Gupta
- a Department of Obstetrics and Gynecology , Lady Hardinge Medical College , New Delhi , India
| | - J Bhattacharya
- f Department of Biochemistry , Vardaman Mahavir Medical College , New Delhi , India
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Velmurugan J, Sinha S, Nagappa M, Mariyappa N, Bindu PS, Ravi GS, Hazra N, Thennarasu K, Ravi V, Taly AB, Satishchandra P. Combined MEG-EEG source localisation in patients with sub-acute sclerosing pan-encephalitis. Neurol Sci 2016; 37:1221-31. [PMID: 27056375 DOI: 10.1007/s10072-016-2571-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Accepted: 02/26/2016] [Indexed: 11/26/2022]
Abstract
To study the genesis and propagation patterns of periodic complexes (PCs) associated with myoclonic jerks in sub-acute sclerosing pan-encephalitis (SSPE) using magnetoencephalography (MEG) and electroencephalography (EEG). Simultaneous recording of MEG (306 channels) and EEG (64 channels) in five patients of SSPE (M:F = 3:2; age 10.8 ± 3.2 years; symptom-duration 6.2 ± 10 months) was carried out using Elekta Neuromag(®) TRIUX™ system. Qualitative analysis of 80-160 PCs per patient was performed. Ten isomorphic classical PCs with significant field topography per patient were analysed at the 'onset' and at 'earliest significant peak' of the burst using discrete and distributed source imaging methods. MEG background was asymmetrical in 2 and slow in 3 patients. Complexes were periodic (3) or quasi-periodic (2), occurring every 4-16 s and varied in morphology among patients. Mean source localization at onset of bursts using discrete and distributed source imaging in magnetic source imaging (MSI) was in thalami and or insula (50 and 50 %, respectively) and in electric source imaging (ESI) was also in thalami and or insula (38 and 46 %, respectively). Mean source localization at the earliest rising phase of peak in MSI was in peri-central gyrus (49 and 42 %) and in ESI it was in frontal cortex (52 and 56 %). Further analysis revealed that PCs were generated in thalami and or insula and thereafter propagated to anterolateral surface of the cortices (viz. sensori-motor cortex and frontal cortex) to same side as that of the onset. This novel MEG-EEG based case series of PCs provides newer insights for understanding the plausible generators of myoclonus in SSPE and patterns of their propagation.
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Affiliation(s)
- J Velmurugan
- Magnetoencephalography Research Centre, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
- Department of Neurology, 1st Floor, Faculty Block, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029, India
- Department of Clinical Neurosciences, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - Sanjib Sinha
- Magnetoencephalography Research Centre, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India.
- Department of Neurology, 1st Floor, Faculty Block, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029, India.
| | - Madhu Nagappa
- Department of Neurology, 1st Floor, Faculty Block, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029, India
| | - N Mariyappa
- Magnetoencephalography Research Centre, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - P S Bindu
- Department of Neurology, 1st Floor, Faculty Block, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029, India
| | - G S Ravi
- Department of Biostatistics, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - Nandita Hazra
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - K Thennarasu
- Department of Biostatistics, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - V Ravi
- Department of Neurovirology, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
| | - A B Taly
- Department of Neurology, 1st Floor, Faculty Block, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029, India
| | - P Satishchandra
- Magnetoencephalography Research Centre, National Institute of Mental Health and Neurosciences (NIMHANS), Bangalore, India
- Department of Neurology, 1st Floor, Faculty Block, National Institute of Mental Health and Neurosciences (NIMHANS), Hosur Road, Bangalore, 560 029, India
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Mahadevan G, Ravi V, Bharathi R. Molecular taxonomy of Pseudapocryptes (Bleeker, 1874) mudskippers from Sundarban mangroves, India. Mitochondrial DNA A DNA Mapp Seq Anal 2015; 28:30-32. [PMID: 26679979 DOI: 10.3109/19401736.2015.1106527] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND More than 40 species of mudskipper is recorded worldwide, but the molecular taxonomy of very few species is studied so far. OBJECTIVE The objective of this study is to determine the molecular taxonomy and phylogenetic relationship of the Pseudapocryptes elongatus and Pseudapocryptes lanceolatus collected from the mudflats of Sundarban, India. METHODS The mitochondrial COI gene was sequenced to analyze the molecular taxonomy. The species name associated with the present analyzed sequence as shown by BLAST searches of GenBank was used to define the phylogenetic relationship. RESULTS Mitochondrial COI gene sequences of collected mudskippers were submitted to GenBank to get accession numbers. The BLAST search of GenBank matched 100% with the species name associated with the present analyzed sequence. CONCLUSIONS The present study reveals the phylogenetic similarity between the species.
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Affiliation(s)
- G Mahadevan
- a Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences , Annamalai University , Parangipettai , Tamil Nadu , India
| | - V Ravi
- a Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences , Annamalai University , Parangipettai , Tamil Nadu , India
| | - R Bharathi
- a Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences , Annamalai University , Parangipettai , Tamil Nadu , India
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Shannon RM, Ravi V, Lentati LT, Lasky PD, Hobbs G, Kerr M, Manchester RN, Coles WA, Levin Y, Bailes M, Bhat NDR, Burke-Spolaor S, Dai S, Keith MJ, Osłowski S, Reardon DJ, van Straten W, Toomey L, Wang JB, Wen L, Wyithe JSB, Zhu XJ. Gravitational waves from binary supermassive black holes missing in pulsar observations. Science 2015; 349:1522-5. [DOI: 10.1126/science.aab1910] [Citation(s) in RCA: 320] [Impact Index Per Article: 35.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- R. M. Shannon
- Commonwealth Science and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, New South Wales 1710, Australia
- International Centre for Radio Astronomy Research, Curtin University, Bentley, Western Australia 6102, Australia
| | - V. Ravi
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, Victoria 3122, Australia
| | - L. T. Lentati
- Astrophysics Group, Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, UK
| | - P. D. Lasky
- Monash Centre for Astrophysics, School of Physics and Astronomy, Monash University, Post Office Box 27, Victoria 3800, Australia
| | - G. Hobbs
- Commonwealth Science and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, New South Wales 1710, Australia
| | - M. Kerr
- Commonwealth Science and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, New South Wales 1710, Australia
| | - R. N. Manchester
- Commonwealth Science and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, New South Wales 1710, Australia
| | - W. A. Coles
- Department of Electrical and Computer Engineering, University of California–San Diego, La Jolla, CA 92093, USA
| | - Y. Levin
- Monash Centre for Astrophysics, School of Physics and Astronomy, Monash University, Post Office Box 27, Victoria 3800, Australia
| | - M. Bailes
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, Victoria 3122, Australia
| | - N. D. R. Bhat
- International Centre for Radio Astronomy Research, Curtin University, Bentley, Western Australia 6102, Australia
| | - S. Burke-Spolaor
- National Radio Astronomical Observatory, Array Operations Center, Post Office Box O, Socorro, NM 87801-0387, USA
| | - S. Dai
- Commonwealth Science and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, New South Wales 1710, Australia
- Department of Astronomy, School of Physics, Peking University, Beijing 100871, China
| | - M. J. Keith
- Jodrell Bank Centre for Astrophysics, University of Manchester, Manchester M13 9PL, UK
| | - S. Osłowski
- Department of Physics, Universitat Bielefeld, Universitatsstrasse 25, D-33615 Bielefeld, Germany
- Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
| | - D. J. Reardon
- Monash Centre for Astrophysics, School of Physics and Astronomy, Monash University, Post Office Box 27, Victoria 3800, Australia
| | - W. van Straten
- Centre for Astrophysics and Supercomputing, Swinburne University of Technology, Post Office Box 218, Hawthorn, Victoria 3122, Australia
| | - L. Toomey
- Commonwealth Science and Industrial Research Organization (CSIRO) Astronomy and Space Science, Australia Telescope National Facility, Post Office Box 76, Epping, New South Wales 1710, Australia
| | - J.-B. Wang
- Xinjiang Astronomical Observatory, Chinese Academy of Sciences, 150 Science 1-Street, Urumqi, Xinjiang 830011, China
| | - L. Wen
- School of Physics, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - J. S. B. Wyithe
- School of Physics, University of Melbourne, Parkville, Victoria 3010, Australia
| | - X.-J. Zhu
- School of Physics, University of Western Australia, Crawley, Western Australia 6009, Australia
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Ravi V, Shankar R. Survey of reverse logistics practices in manufacturing industries: an Indian context. Benchmarking: An International Journal 2015. [DOI: 10.1108/bij-06-2013-0066] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
– The purpose of this paper is to investigate the current status of reverse logistics practices used on four sectors of Indian manufacturing industry, namely, auto, paper, food and beverage processing, and electronics.
Design/methodology/approach
– A nationwide questionnaire-based survey has been used to assess reverse logistics practices in Indian context.
Findings
– It was seen from the survey that Indian companies considered implementing reverse logistics programs in their organization as a strategic-level decision. Volume of products entering the return stream is a key driver of reverse logistics activities. One of the important observations of this research is that Indian companies have primarily adopted reverse logistics due to the economic benefits associated with them.
Research limitations/implications
– The results reported in this research are the bird’s eye view of reverse logistics practices in the Indian context only. The low level of questionnaire responses is also one of the limitations of this study. Numerical data related to companies could not be reported in this research as companies were reluctant in giving sensitive data.
Practical implications
– The present research would be useful for benchmarking professionals/managers for understanding strategic, tactical and operational-level issues of reverse logistics with respect to Indian context. Also, logistics managers can evolve suitable strategies for successful implementation of reverse logistics programs.
Originality/value
– The literature review indicates that only a few frameworks available give a holistic perspective of the current status of reverse logistics operations in an Indian context. This research is an attempt in this regard.
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Sachithanandham J, Kannangai R, Pulimood SA, Desai A, Abraham AM, Abraham OC, Ravi V, Samuel P, Sridharan G. Significance of Epstein-Barr virus (HHV-4) and CMV (HHV-5) infection among subtype-C human immunodeficiency virus-infected individuals. Indian J Med Microbiol 2015; 32:261-9. [PMID: 25008818 DOI: 10.4103/0255-0857.136558] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE Opportunistic viral infections are one of the major causes of morbidity and mortality in HIV infection and their molecular detection in the whole blood could be a useful diagnostic tool. OBJECTIVE The frequency of opportunistic DNA virus infections among HIV-1-infected individuals using multiplex real-time PCR assays was studied. MATERIALS AND METHODS The subjects were in two groups; group 1: Having CD4 counts<100 cells/µl (n=118) and the group 2: counts>350 cells/µl (n=173). Individuals were classified by WHO clinical staging system. Samples from 70 healthy individuals were tested as controls. In-house qualitative multiplex real-time PCR was standardised and whole blood samples from 291 were tested, followed by quantitative real-time PCR for positives. In a proportion of samples genotypes of Epstein-Barr virus (EBV) and CMV were determined. RESULTS The two major viral infections observed were EBV and CMV. The univariate analysis of CMV load showed significant association with cryptococcal meningitis, oral hairy leukoplakia (OHL), CMV retinitis, CD4 counts and WHO staging (P<0.05) while the multivariate analysis showed an association with OHL (P=0.02) and WHO staging (P=0.05). Univariate analysis showed an association of EBV load with CD4 counts and WHO staging (P<0.05) and multivariate analysis had association only with CD4 counts. The CMV load was significantly associated with elevated SGPT and SGOT level (P<0.05) while the EBV had only with SGOT. CONCLUSION This study showed an association of EBV and CMV load with CD4+ T cell counts, WHO staging and elevated liver enzymes. These viral infections can accelerate HIV disease and multiplex real-time PCR can be used for the early detection. Genotype 1 and 2 of EBV and genotype gB1 and gB2 of CMV were the prevalent in the HIV-1 subtype C-infected south Indians.
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Affiliation(s)
| | - R Kannangai
- Department of Clinical Virology, Christian Medical College, Vellore, Tamil Nadu, India
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