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Lavadi RS, Bozkurt I, Harikar MM, Umana GE, Chaurasia B. The Role of Social Media on the Research Productivity of Neurosurgeons During the COVID-19 Pandemic. World Neurosurg 2022; 167:e1419-e1425. [PMID: 36122854 PMCID: PMC9479383 DOI: 10.1016/j.wneu.2022.09.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/11/2022] [Accepted: 09/12/2022] [Indexed: 11/08/2022]
Abstract
BACKGROUND The COVID-19 pandemic committees of all countries restricted face-to-face interactions. This study aimed to determine how the pandemic changed the research output for many neurosurgeons while highlighting how social media may have been used as a contactless platform to maintain research productivity during these times. METHODS A cross-sectional, descriptive, 24-item, and non-randomized online survey was applied worldwide, and shared using social media platforms and emails. The questions mainly focused on comparing the results of the pre-pandemic period to the pandemic period (after March 2020). RESULTS A total of 202 respondents from 60 different countries responded to the survey. Interest in neurosurgical education increased from 24% to 76%, while the topic of epidemiology gained interest from 28% to 72% when the pre-pandemic era was compared to the pandemic era. Preference for prospective studies decreased from 66% to 34%, while interest in retrospective studies increased from 39% to 61%. In evaluating publication types, the preference for reviews increased from 36% to 64%. Sixty-two percent of the respondents stated they had concerns over delays in individual contributions/lack of accountability. These concerns were followed by problems with theft of intellectual property/data and authorship disputes. Forty-one percent believed that the support of extra hands on a load-heavy project was the most powerful benefit of social media collaboration. Those who reported increased publications during the pandemic were also more likely to collaborate using social media (P = 0.030). CONCLUSIONS During the pandemic, social media collaborations helped increase research output for neurosurgeons.
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Affiliation(s)
- Raj Swaroop Lavadi
- Department of Neurosurgery, Washington University School of Medicine, St. Louis, Missouri, USA.
| | - Ismail Bozkurt
- Department of Neurosurgery, Cankiri State Hospital, Cankiri, Turkey
| | | | - Giuseppe Emmanuele Umana
- Department of Neurosurgery, Trauma Center, Gamma Knife Center, Cannizzaro Hospital, Catania, Italy
| | - Bipin Chaurasia
- Department of Neurosurgery, Neurosurgery Clinic, Birgunj, Nepal
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Boudry C, Al Hajj H, Arnould L, Mouriaux F. Analysis of international publication trends in artificial intelligence in ophthalmology. Graefes Arch Clin Exp Ophthalmol 2022; 260:1779-1788. [PMID: 34999946 DOI: 10.1007/s00417-021-05511-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 11/05/2021] [Accepted: 11/24/2021] [Indexed: 12/25/2022] Open
Abstract
PURPOSE Artificial intelligence (AI) has entered the field of medicine, and ophthalmology is no exception. The objective of this study was to report on scientific production and publication trends, to identify journals, countries, international collaborations, and major MeSH terms involved in AI in ophthalmology research. METHODS Scientometric methods were used to evaluate global scientific production and development trends in AI in ophthalmology using PubMed and the Web of Science Core Collection. RESULTS A total of 1356 articles were retrieved over the period 1966-2019. The yearly growth of AI in ophthalmology publications has been 18.89% over the last ten years, indicating that AI in ophthalmology is a very attractive topic in science. Analysis of the most productive journals showed that most were specialized in computer and medical systems. No journal was found to specialize in AI in ophthalmology. The USA, China, and the UK were the three most productive countries. The study of international collaboration showed that, besides the USA, researchers tended to collaborate with peers from neighboring countries. Among the twenty most frequent MeSH terms retrieved, there were only four related to clinical topics, revealing the retina and glaucoma as the most frequently encountered subjects of interest in AI in ophthalmology. Analysis of the top ten Journal Citation Reports categories of journals and MeSH terms for articles confirmed that AI in ophthalmology research is mainly focused on engineering and computing and is mainly technical research related to computer methods. CONCLUSIONS This study provides a broad view of the current status and trends in AI in ophthalmology research and shows that AI in ophthalmology research is an attractive topic focusing on retinal diseases and glaucoma. This study may be useful for researchers in AI in ophthalmology such as clinicians, but also for scientists to better understand this research topic, know the main actors in this field (including journals and countries), and have a general overview of this research theme.
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Affiliation(s)
- Christophe Boudry
- Normandie Univ, UNICAEN, Média Normandie, Caen, France. .,URFIST, Ecole Nationale des Chartes, PSL Research University, Paris, France.
| | - Hassan Al Hajj
- LaTIM, UMR 1101 INSERM, Université de Bretagne Occidentale, Brest, France
| | | | - Frederic Mouriaux
- INSERM, Univ Rennes, CHU Rennes, Department of Ophthalmology, CLCC Eugène Marquis, COSS [(Chemistry Oncogenesis Stress Signaling)] - UMR_S 1242, 35000, Rennes, France
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Rossaki FM, Hurst JR, van Gemert F, Kirenga BJ, Williams S, Khoo EM, Tsiligianni I, Tabyshova A, van Boven JF. Strategies for the prevention, diagnosis and treatment of COPD in low- and middle- income countries: the importance of primary care. Expert Rev Respir Med 2021; 15:1563-1577. [PMID: 34595990 DOI: 10.1080/17476348.2021.1985762] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Low- and middle-income countries (LMICs) bear a high proportion of the global morbidity and mortality caused by COPD. Increased exposure to risk factors throughout life (e.g. malnutrition, indoor and outdoor air pollution, and smoking) is associated with higher COPD prevalence in LMICs and the lack of treatment availability increases avoidable harm. AREAS COVERED This review covers the epidemiology and burden of COPD in LMICs, and challenges and recommendations related to health-care systems, prevention, diagnosis, and treatment. Main challenges are related to under-resourced health-care systems (such as limited availability of spirometry, rehabilitation, and medicines). Lack of policy and practical local guidelines on COPD diagnosis and management further contribute to the low diagnostic and treatment rates. In the absence of, or limited number of respiratory specialists, primary care practitioners (general practitioners, nurses, pharmacists, physiotherapists, and community health workers) play an even more pivotal role in COPD management in LMICs. EXPERT OPINION Raising awareness on COPD, educating health-care workers, patients, and communities on cost-effective preventive measures as well as improving availability, affordability and proper use of diagnostic and pharmacological and non-pharmacologic treatment in primary care are the key interventions needed to improve COPD prevention, diagnosis, and care in LMICs.
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Affiliation(s)
- Foteini M Rossaki
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (Griac), Groningen, The Netherlands
| | - John R Hurst
- UCL Respiratory, University College London, London, UK
| | - Frederik van Gemert
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (Griac), Groningen, The Netherlands
| | - Bruce J Kirenga
- Makerere University Lung Institute, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Siân Williams
- International Primary Care Respiratory Group, London, UK
| | - Ee Ming Khoo
- Department of Primary Care Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Aizhamal Tabyshova
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (Griac), Groningen, The Netherlands.,Pulmonology Department, National Center of Cardiology and Internal Medicine Named after M.m. Mirrakhimov, Bishkek, Kyrgyzstan
| | - Job Fm van Boven
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (Griac), Groningen, The Netherlands
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Bibliometric Analysis of the 103 Most-Cited Articles about COVID-19 in the Intensive Care Field. JOURNAL OF BASIC AND CLINICAL HEALTH SCIENCES 2021. [DOI: 10.30621/jbachs.900324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Isfandyari-Moghaddam A, Saberi MK, Tahmasebi-Limoni S, Mohammadian S, Naderbeigi F. Global scientific collaboration: A social network analysis and data mining of the co-authorship networks. J Inf Sci 2021. [DOI: 10.1177/01655515211040655] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Co-authorship networks consist of nodes and numerous links indicating scientific collaboration of researchers. These networks could be studied through social networks analysis and data mining techniques. The focus of the article is twofold: the first objective is the analysis of the co-authorship networks of the top 60 countries that had the highest number of scientific publications in the world, and the second one is the discovery of collaboration patterns of highly cited papers of these countries. To do so, all scientific publications of the top 60 countries in all fields as well as their highly cited papers were included in the study period between 2011 and 2015. The research samples in the first part included 10,460,999 documents and in the second part encompassed 711,025 highly cited papers. Required data were extracted from web of science database. To analyse co-authorship networks, centrality indices and clustering coefficient were used. UCINET, Pajek, VOSviewer and BibExcel software were used to map co-authorship networks of the countries and to calculate indices. Finally, the discovery of collaboration patterns in highly cited papers is studied through association rules. The research data indicated that over 95% of documents has been produced by the top 60 countries. In addition, the USA, Germany, England, France and Spain launched the most co-authorship. Quantitatively, there have been the most powerful collaboration links between China and the USA, the USA and England, the USA and Germany, and the USA and Canada. The clustering data indicated that collaborations of the top countries of the world were in three main clusters. The Friedman test showed that there was a significant difference in the priorities of the countries for collaboration; and the USA, China, England, Germany, France, Japan and Italy are in the top priority for collaboration, respectively. The results of collaboration pattern in highly cited papers indicated that the USA participates in more than half of collaboration patterns for producing highly cited papers.
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Affiliation(s)
| | - Mohammad Karim Saberi
- Department of Medical Library and Information Sciences, School of Paramedicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Safieh Tahmasebi-Limoni
- Department of Knowledge and Information Science, Babol Branch, Islamic Azad University, Babol, Iran
| | - Sajjad Mohammadian
- Department of Knowledge and Information Science, University of Tehran, Tehran, Iran
| | - Farahnaz Naderbeigi
- Department of Knowledge and Information Science, Hamedan Branch, Islamic Azad University, Hamedan, Iran
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Hedges JR, Soliman KFA, Southerland WM, D’Amour G, Fernández-Repollet E, Khan SA, Kumar D, Shikuma CM, Rivers BM, Yates CC, Yanagihara R, Thompson WE, Bond VC, Harris-Hooker S, McClure SA, Ofili EO. Strengthening and Sustaining Inter-Institutional Research Collaborations and Partnerships. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:2727. [PMID: 33800316 PMCID: PMC7967451 DOI: 10.3390/ijerph18052727] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/06/2021] [Accepted: 03/01/2021] [Indexed: 11/16/2022]
Abstract
Inter-institutional collaborations and partnerships play fundamental roles in developing and diversifying the basic biomedical, behavioral, and clinical research enterprise at resource-limited, minority-serving institutions. In conjunction with the Research Centers in Minority Institutions (RCMI) Program National Conference in Bethesda, Maryland, in December 2019, a special workshop was convened to summarize current practices and to explore future strategies to strengthen and sustain inter-institutional collaborations and partnerships with research-intensive majority-serving institutions. Representative examples of current inter-institutional collaborations at RCMI grantee institutions are presented. Practical approaches used to leverage institutional resources through collaborations and partnerships within regional and national network programs are summarized. Challenges and opportunities related to such collaborations are provided.
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Grants
- U01GM132771 NIGMS NIH HHS
- U54 MD007582 NIMHD NIH HHS
- U13MD014961 NIMHD NIH HHS
- UL1 TR002378 NCATS NIH HHS
- G12 MD007590 NIMHD NIH HHS
- U54MD007579, U54MD007582, U54MD007585, U54MD007590, U54MD007595, U54MD007597,U54MD007600, U54MD007601, U54MD007602, and U54MD012392. NIMHD NIH HHS
- U54 MD007590 NIMHD NIH HHS
- U54MD007584, U54MD008149, U24MD015970, and R25MD007589. NIMHD NIH HHS
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Affiliation(s)
- Jerris R. Hedges
- Department of Medicine and Surgery, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA
| | - Karam F. A. Soliman
- Department of Basic Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Florida Agricultural and Mechanical University, Tallahassee, FL 32307, USA;
| | - William M. Southerland
- Department of Biochemistry & Molecular Biology, College of Medicine, Howard University, Washington, DC 20059, USA;
| | - Gene D’Amour
- Office of the President, Xavier University of Louisiana, New Orleans, LA 70125, USA;
| | - Emma Fernández-Repollet
- Department of Pharmacology & Toxicology, University of Puerto Rico Medical Sciences Campus, San Juan, PR 00936, USA;
| | - Shafiq A. Khan
- Department of Biological Sciences, Clark Atlanta University, Atlanta, GA 30314, USA;
| | - Deepak Kumar
- Julius L. Chambers Biomedical/Biotechnology Research Institute, North Carolina Central University, Durham, NC 27707, USA;
| | - Cecilia M. Shikuma
- Department of Medicine and Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA;
| | - Brian M. Rivers
- Cancer Health Equity Institute, Morehouse School of Medicine, Atlanta, GA 30310, USA;
| | - Clayton C. Yates
- Department of Biology and Center for Cancer Research, Tuskegee University, Tuskegee, AL 36088, USA;
| | - Richard Yanagihara
- Department of Pediatrics, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, HI 96813, USA;
| | - Winston E. Thompson
- Department of Physiology and Obstetrics & Gynecology, Morehouse School of Medicine, Atlanta, GA 30310, USA;
| | - Vincent Craig Bond
- Department of Microbiology, Biochemistry & Immunology, Morehouse School of Medicine, Atlanta, GA 30310, USA;
| | - Sandra Harris-Hooker
- Department of Pathology & Anatomy, Morehouse School of Medicine, Atlanta, GA 30310, USA;
| | - Shelia A. McClure
- Office of Research Development, Morehouse School of Medicine, Atlanta, GA 30310, USA;
| | - Elizabeth O. Ofili
- Department of Medicine, Morehouse School of Medicine, Atlanta, GA 30310, USA;
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AL-Aqeel S, Mendes AM, Taisir H, Fernandez-Llimos F. International collaboration in pharmacy practice research: A bibliometric analysis. Res Social Adm Pharm 2020; 16:1513-1518. [DOI: 10.1016/j.sapharm.2020.05.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/05/2020] [Accepted: 05/17/2020] [Indexed: 02/07/2023]
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Research trends in osteoporosis in Asian countries and regions in the last 20 years. Arch Osteoporos 2020; 15:130. [PMID: 32804292 DOI: 10.1007/s11657-020-00795-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 07/21/2020] [Indexed: 02/03/2023]
Abstract
UNLABELLED Asian countries have made great progress in the osteoporosis research over the past 20 years. Mainland China has a significant increase in the number of articles. The scientific influence of Japan ranked by citations was leading in Asia. Indian researchers published fewer articles on osteoporosis, but the overall citation was quite well. PURPOSE To analyze the quantity and quality of literature regarding osteoporosis from the Asian countries/regions. METHODS Data were obtained from the Web of Science (WoS) Core Collection on May 4, 2020. Qualitative and quantitative analysis was conducted based on WoS. Keywords analysis was performed using VosView software. RESULTS The core countries/regions in Asia in the osteoporosis research included the Mainland China (MC), Japan, South Korea, Turkey, Taiwan, India, and Iran. The core countries/regions published 4798 papers, which accounted for 33.8% of the total globally. The MC with 2242 literature and Japan with 971 were ranked second and fourth worldwide. Over the past decade, MC has published the most articles and increased dramatically. Japan had the highest mean citations and the highest mean citation density. The country with the most publications in the top ten popular osteoporosis-related journals was Japan. The top institutional from the MC, Taiwan, South Korea, and Japan published the most articles. The top authors with the most articles were from Japan and MC. Top institutions and authors from Japan, MC, and India led the way in citations. The core countries/regions had more frequent cooperation with the USA, the UK, and Canada compared with the limited cooperation among Asian countries. Osteoporosis research in Asia relies heavily on public funding and pharmaceutical companies. Keywords for these studies have changed over the past 20 years. CONCLUSIONS Asian countries have made progress in the osteoporosis research over the past 20 years. The MC has a significant increase in the number of articles. The scientific influence of Japan ranked by citations was leading in Asia. Indian researchers published fewer articles on osteoporosis, but the overall quality was quite well. The core Asian countries/regions should strengthen in-depth cooperation in the future.
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Abstract
OBJECTIVE To present a novel network-based framework for the study of collaboration in surgery and demonstrate how this can be used in practice to help build and nurture collaborations that foster innovation. BACKGROUND Surgical innovation is a social process that originates from complex interactions among diverse participants. This has led to the emergence of numerous surgical collaboration networks. What is still needed is a rigorous investigation of these networks and of the relative benefits of various collaboration structures for research and innovation. METHODS Network analysis of the real-world innovation network in robotic surgery. Hierarchical mixed-effect models were estimated to assess associations between network measures, research impact and innovation, controlling for the geographical diversity of collaborators, institutional categories, and whether collaborators belonged to industry or academia. RESULTS The network comprised of 1700 organizations and 6000 links. The ability to reach many others along few steps in the network (closeness centrality), forging a geographically diverse international profile (network entropy), and collaboration with industry were all shown to be positively associated with research impact and innovation. Closed structures (clustering coefficient), in which collaborators also collaborate with each other, were found to have a negative association with innovation (P < 0.05 for all associations). CONCLUSIONS In the era of global surgery and increasing complexity of surgical innovation, this study highlights the importance of establishing open networks spanning geographical boundaries. Network analysis offers a valuable framework for assisting surgeons in their efforts to forge and sustain collaborations with the highest potential of maximizing innovation and patient care.
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Sun J, Zhou Z, Huang J, Li G. A Bibliometric Analysis of the Impacts of Air Pollution on Children. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E1277. [PMID: 32079218 PMCID: PMC7068507 DOI: 10.3390/ijerph17041277] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/09/2020] [Accepted: 02/14/2020] [Indexed: 12/12/2022]
Abstract
In recent years, many researchers have investigated the association between air pollution and children. However, there has been little research to provide a macroscopic overview in this field. The aim of this study is to characterize the scientific production around the world in this area and map the trends. The relevant literature was searched from 1999 to 2018. To guarantee the quality of the literature, we combined the PubMed and WoS databases. The built-in statistics tools of the Web of Science website were used to display the trend of articles published by year and the distribution of journals. By CiteSpace (5.5.R2), the reference co-citation and burst keywords were extracted. In total, 15,999 target English documents were obtained. We summarized the characteristics of published documents, of research institutes' cooperation, and of the contents. As part of a research hotspot, ten clusters are presented, four popular topics are elaborated. Twenty-four burst words were obtained and analyzed. China has received more attention in recent years. Researchers in this field could carry out more cohorts' studies and fine particulate matter is one good air pollution index. Household air pollution exposure and children's lung function should be paid more attention.
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Affiliation(s)
- Jinfang Sun
- Office of Epidemiology, Chinese Center for Disease Control and Prevention, Beijing 102206, China;
| | - Zhichao Zhou
- Peking University Health Science Library, Beijing 100191, China;
| | - Jing Huang
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing 100191, China;
| | - Guoxing Li
- Department of Occupational and Environmental Health Sciences, Peking University School of Public Health, Beijing 100191, China;
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WU W, XIE Y, LIU X, GU Y, ZHANG Y, TU X, TAN X. Analysis of Scientific Collaboration Networks among Authors, Institutions, and Countries Studying Adolescent Myopia Prevention and Control: A Review Article. IRANIAN JOURNAL OF PUBLIC HEALTH 2019; 48:621-631. [PMID: 31110972 PMCID: PMC6500532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
BACKGROUND Studies related to the prevention and control of myopia in adolescents have increased rapidly, but only a few have measured the levels of scientific collaboration among authors, institutions and countries in this field. Thus, in this study, we aimed to reveal the status and levels of scientific collaboration in this field. METHODS The research population included all published papers in the field of adolescent myopia prevention and control indexed in the Web of Science databases from 1997-2016. The co-authorship networks were drawn using SATI (Statistical Analysis Toolkit for Informetrics), Ucinet and VOS viewer (Visualisation of Similarities viewer). Active authors and some measures of co-author network, including degree centrality, closeness, betweenness, density and diameter, were also assessed. RESULTS Overall, 610 records were obtained, and a number of publications developed through an increase in different collaboration types, with cooperation among authors and institutions as the most apparent ones. The top ten active authors and institutions were identified. The density of cooperative networks of the top 70 authors and the first 69 institutions were 0.043 and 0.011, respectively, with corresponding diameters of five and six, respectively. Seven distinct clusters formed the cooperation network among 38 countries. The top three clusters were centered in China, the United States and Australia, also identified as the most productive countries. CONCLUSION The flow of information is slow and the collaboration among authors and institutions in the network are not close enough. Thus, multiple collaboration types should be encouraged in this field, especially among countries.
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Affiliation(s)
- Wenwen WU
- School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China,School of Public Health and Management, Hubei University of Medicine, Shiyan 442000, Hubei Province, China
| | - Yaofei XIE
- School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Xiangxiang LIU
- School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Yaohua GU
- School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Yuting ZHANG
- School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Xinlong TU
- School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China
| | - Xiaodong TAN
- School of Health Sciences, Wuhan University, Wuhan 430071, Hubei Province, China,Corresponding Author:
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Gregori D, Gulati A, Baldi I. Editorial: Children's Health from Global Determinants to Local Consequences: The Indian Perspective. Indian J Pediatr 2019; 86:1-2. [PMID: 30623312 DOI: 10.1007/s12098-018-2823-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 11/16/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Dario Gregori
- Unit of Biostatistics, Epidemiology and Public Health, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy.
| | - Achal Gulati
- Department of Otorhinolaryngology and Head and Neck Surgery (ENT), Maulana Azad Medical College and Associated Lok Nayak Hospital, New Delhi, India
| | - Ileana Baldi
- Unit of Biostatistics, Epidemiology and Public Health, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy
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Singh P, Mishra M, Agarwal S, Sau S, Iyer AK, Kashaw SK. Exploring the Role of Water Molecules in the Ligand Binding Domain of PDE4B and PDE4D: Virtual Screening Based Molecular Docking of Some Active Scaffolds. Curr Comput Aided Drug Des 2018; 15:334-366. [PMID: 30394213 DOI: 10.2174/1573409914666181105153543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 11/01/2018] [Accepted: 11/01/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND The phosphodiesterase (PDE) is a superfamily represented by four genes: PDE4A, B,C, and D which cause the hydrolysis of phosphodiester bond of cAMP to yield inactive AMP. c-AMP catalyzing enzyme is predominant in inflammatory and immunomodulatory cells. Therapy to treat Chronic Obstructive Pulmonary Disease (COPD) with the use of PDE4 inhibitors is highly envisaged. OBJECTIVE A molecular docking experiment with large dataset of diverse scaffolds has been performed on PDE4 inhibitors to analyze the role of amino acid responsible for binding and activation of the secondary transmitters. Apart from the general docking experiment, the main focus was to discover the role of water molecules present in the ligand-binding domain. METHODS All the compounds were docked in the PDE4B and PDE4D active cavity to produce the free binding energy scores and spatial disposition/orientation of chemical groups of inhibitors around the cavity. Under uniform condition, the experiments were carried out with and without water molecules in the LBD. The exhaustive study was carried out on the Autodock 4.2 software and explored the role of water molecules present in the binding domain. RESULTS In presence of water molecule, Roflumilast has more binding affinity (-8.48 Kcal/mol with PDE4B enzyme and -8.91 Kcal/mol with PDE4D enzyme) and forms two hydrogen bonds with Gln443 and Glu369 and amino acid with PDE4B and PDE4D enzymes respectively. While in absence of water molecule its binding affinity has decreased (-7.3 Kcal/mol with PDE4B enzyme and -5.17 Kcal/mol with PDE4D enzyme) as well as no H-bond interactions were observed. Similar observation was made with clinically tested molecules. CONCLUSION In protein-ligand binding interactions, appropriate selection of water molecules facilitated the ligand binding, which eventually enhances the efficiency as well as the efficacy of ligand binding.
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Affiliation(s)
- Priya Singh
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University (A Central University), Sagar, MP, India
| | - Mitali Mishra
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University (A Central University), Sagar, MP, India
| | - Shivangi Agarwal
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University (A Central University), Sagar, MP, India
| | - Samaresh Sau
- Use-inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, Michigan, MI, United States
| | - Arun K Iyer
- Use-inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, Michigan, MI, United States.,Molecular Therapeutics Program, Karmanos Cancer Institute, Detroit, Michigan, MI, United States
| | - Sushil K Kashaw
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University (A Central University), Sagar, MP, India.,Use-inspired Biomaterials & Integrated Nano Delivery (U-BiND) Systems Laboratory, Department of Pharmaceutical Sciences, Wayne State University, Detroit, Michigan, MI, United States
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