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A Bibliometric and Mapping Analysis of Glaucoma Research between 1900 and 2019. Ophthalmol Glaucoma 2021; 5:16-25. [PMID: 34082178 DOI: 10.1016/j.ogla.2021.05.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/06/2021] [Accepted: 05/26/2021] [Indexed: 02/06/2023]
Abstract
PURPOSE To explore the relevance of scientific production on glaucoma using bibliometric tools. DESIGN Bibliographic study. PARTICIPANTS Original articles published from 1900 through 2019. METHODS We performed a search in Web of Science for documents published between 1900 and 2019. We used bibliometric indicators to explore documents production, dispersion, distribution, time of duplication, and annual growth, as characterized by Price's law of scientific literature growth, Lotka's law, the transient index, and the Bradford model. We also calculated the participation index of different countries and institutions. Finally, we explored with bibliometric mapping the co-occurrence networks for the most frequently used terms in glaucoma research. MAIN OUTCOME MEASURES Bibliometric indicators for individuals, institutions, and countries. RESULTS A total of 33 631 original articles were collected from the timeframe 1900 through 2019. Price's law showed an exponential growth. Scientific production was adjusted better to exponential growth (r = 0.967) than linear growth (r = 0.755). Literature on glaucoma research increased its growth in the last 30 years at a rate of 5.1% per year with a production that doubled its size every 13.9 years. The transience index was 60.08%; this indicates that most of the scientific production is the output of very few authors. Bradford's law showed a high concentration of articles published in a small core of specialized journals. Lotka's law indicated that the distribution of authors is concentrated heavily in small producers. The United States and University of London demonstrated the highest production of original articles. Map network visualization showed the generated term map detailing clusters of closely related terms. CONCLUSIONS Glaucoma literature has grown exponentially. A very high rate of transience was found that indicates the presence of numerous authors who sporadically publish on this topic. No evidence of a saturation point in the glaucoma literature was observed.
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Bai X, Song Z, Zhou Y, Wang X, Wang Y, Zhang D. Bibliometrics and Visual Analysis of the Research Status and Trends of Postpartum Depression From 2000 to 2020. Front Psychol 2021; 12:665181. [PMID: 34108920 PMCID: PMC8180864 DOI: 10.3389/fpsyg.2021.665181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 04/27/2021] [Indexed: 12/02/2022] Open
Abstract
The purpose of this study was to evaluate the international scientific output on postpartum depression (PPD) research during 2000–2020 through a bibliometric analysis and to explore research hotspots, frontiers, and trends in the field of postpartum depression. We searched the Web of Science Core Collection for publications on postpartum depression published between 2000 and 2020. CiteSpace, gCluto, and other software applications were used to analyze the data by year, journal, and country. A total of 2,963 publications were retrieved and 96 countries or regions published related papers. The United States had the largest number of published papers and the highest betweenness centrality, which is the dominant position in the field of postpartum depression. A total of 717 journals published papers, with the Archives of Womens Mental Health ranked first in terms of volume and betweenness centrality. In this study, 31 high-frequency main MeSH terms/subheadings were selected. The high-frequency MeSH terms were clustered into six categories: an overview of depression-related research, diagnostic and screening scales for postpartum depression, epidemiological investigation into postpartum depression, treatment and drug selection for postpartum depression, psychological research on postpartum depression, and etiology, physiopathology, complications, genetics of postpartum depression. Finally, we used strategic diagram to analyze research trends in postpartum depression. This study has identified a continuous significant increase in the publication of PPD articles. Currently, the etiology, physiological pathology, intervention and treatment of complications on PPD are immature, which provides reference for the trend of obstetric psychology.
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Affiliation(s)
- Xue Bai
- Department of Health Management, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zixuan Song
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yangzi Zhou
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiaoxue Wang
- Department of Health Management, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yuting Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Dandan Zhang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
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Salazar-Concha C, Ficapal-Cusí P, Boada-Grau J, Camacho LJ. Analyzing the evolution of technostress: A science mapping approach. Heliyon 2021; 7:e06726. [PMID: 33912710 PMCID: PMC8065288 DOI: 10.1016/j.heliyon.2021.e06726] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 12/02/2020] [Accepted: 04/01/2021] [Indexed: 12/05/2022] Open
Abstract
This paper analyzes the scientific map of technostress and the scientific production on this topic between 1982 and 2017, highlighting its structure, evolution, and trends in this field. A literature review based on bibliometric analysis of 246 records indexed in Scopus database was conducted. These publications were analyzed according to bibliometric indicators and through science maps with SciMAT. Co-occurrence of terms by grouping techniques was implemented. In addition, elaboration of maps of science and performance analysis for periods was executed. The main contribution of this work is to provide the first scientific map of technostress and a detailed understanding of the scientific production that predicts the directions of future research. The bibliometric analyses permit an overview of the growth, extent and distribution of the scientific literature related to the technostress and the study of the scientific production of an institution, country, author or research group.
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Affiliation(s)
- Cristian Salazar-Concha
- Administration Institute, Faculty of Economic and Administrative Sciences, Universidad Austral de Chile, Independencia 631, Valdivia 5110566, Chile
| | - Pilar Ficapal-Cusí
- Faculty of Economics and Business, Universitat Oberta de Catalunya, Av. Tibidabo, 39-43, 08035, Barcelona, Spain
| | - Joan Boada-Grau
- Faculty of Education Sciences and Psychology, Universitat Rovira i Virgili, Ctra Valls, S/n, 43007, Tarragona, Spain
| | - Luis J Camacho
- Division of Business, Department of International Business and Marketing, SUNY Empire State College, 500 Seaview Avenue, Staten Island, NY 10305, USA
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Bareeqa SB, Ahmed SI, Samar SS, Anwar A, Husain MM. A bibliometric analysis of top 50-most cited articles on repetitive trans-cranial magnetic stimulation (rTMS) for treatment of depression. Heliyon 2021; 7:e06021. [PMID: 33537480 PMCID: PMC7841314 DOI: 10.1016/j.heliyon.2021.e06021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/30/2020] [Accepted: 01/13/2021] [Indexed: 11/18/2022] Open
Abstract
Background Citation count can be used as a key tool to assess the quality of the published literature and because of its immense advantages it is now widely used in ranking the articles on specific topics. Objective/hypothesis To extract and assess the top cited work on repetitive transcranial magnetic stimulation (rTMS) for depression treatment. Methods Scopus Library Database was searched and two independent authors produced a list of 50 most cited articles on repetitive transcranial magnetic stimulation (rTMS) for treatment of depression. All the relevant articles having key-terms within their titles, abstract and keywords were included in our search. Our list was categorized into two categories, “mixed” and “focused”. Results The articles in the produced list of top 50 most cited articles on rTMS for treatment of depression belong to the time period 1993–2012 with total citation count 12078. George MS was prominent in the list. ‘Biological Psychiatry’ published most number of articles (n = 13) among the list. Articles were categorized on the basis of primary population and intervention into ‘Focused’ and ‘Mixed’ categories. Limitations Articles that were published before 1993 and after 2012 on rTMS for depression couldn't made it to the final list of top-50 most cited article. Conclusion We attempted to conduct a topic-specific citation analysis considering the paucity of specified bibliometrics in medical literature. Our research provides an insight on emerging trends in rTMS for depression and highlights the characteristics, quality and dynamics of frequently cited articles in the field.
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Affiliation(s)
| | - Syed Ijlal Ahmed
- Liaquat National Medical College and Hospital, Karachi, Pakistan
| | | | - Arsalan Anwar
- Department of Medicine, Dow Medical College, Karachi, Pakistan
| | - Mustafa M Husain
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, TX, USA
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Kapadia M, Desai M, Parikh R. Fractures in the framework: limitations of classification systems in psychiatry
. DIALOGUES IN CLINICAL NEUROSCIENCE 2020; 22:17-26. [PMID: 32699502 PMCID: PMC7365290 DOI: 10.31887/dcns.2020.22.1/rparikh] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This article examines the limitations of existing classification systems from the
historical, cultural, political, and legal perspectives. It covers the evolution of
classification systems with particular emphasis on the DSM and
ICD systems. While pointing out the inherent Western bias in these
systems, it highlights the potential of misuse of these systems to subserve other
agendas. It raises concerns about the reliability, validity, comorbidity, and
heterogeneity within diagnostic categories of contemporary classification systems.
Finally, it postulates future directions in alternative methods of diagnosis and
classification factoring in advances in artificial intelligence, machine learning,
genetic testing, and brain imaging. In conclusion, it emphasizes the need to go beyond
the limitations inherent in classifications systems to provide more relevant diagnoses
and effective treatments.
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Affiliation(s)
- Munira Kapadia
- Department of Psychiatry, Jaslok Hospital & Research Centre, Mumbai, India
| | - Maherra Desai
- Department of Psychiatry, Jaslok Hospital & Research Centre, Mumbai, India
| | - Rajesh Parikh
- Department of Psychiatry, Jaslok Hospital & Research Centre, Mumbai, India
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Demir E, Akmeşe Ö, Erbay H, Taylan-Özkan A, Mumcuoğlu K. Bibliometric analysis of publications on house dust mites during 1980-2018. Allergol Immunopathol (Madr) 2020; 48:374-383. [PMID: 32284264 DOI: 10.1016/j.aller.2020.01.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/08/2020] [Accepted: 01/29/2020] [Indexed: 01/21/2023]
Abstract
BACKGROUND The global prevalence of allergic diseases has increased dramatically in recent years and are now recognized as significant chronic diseases worldwide. One of the most important allergens that causes allergic diseases is house dust mites. OBJECTIVE This study aims to present a bibliometric overview of research published on dust mites between 1980 and 2018. METHODS Articles published from 1980 to 2018 were analyzed using bibliometric methods. The keywords "Dust mite*," and "Dermatophagoides" were used in the Web of Science (WoS). Simple linear regression analysis was used to estimate the number of future publications on this subject. RESULTS A total of 4742 publications were found, 2552 (53.8%) of them were articles. Most of the articles were on subjects related to immunology (1274; 49.9%) and allergy (1229; 48.1%). Clinical and Experimental Allergy (222; 8.7%) was the journal with the most publications. The USA was the country that most contributed to the literature with 461 (18.1%) articles. The countries producing the most publications on this subject were developed countries. The most active author was W.R. Thomas (66; 2.5%). The most productive institution was the University of Western Australia (91; 3.6%). The most cited article was published in the New England Journal of Medicine. CONCLUSION According to the findings, developed countries were the most productive in publishing on house dust mites. By planning multinational research rather than regional studies, it may be suggested that researchers in underdeveloped or developing countries could also conduct more research on this subject.
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Daly A, Gallagher S. Towards a Phenomenology of Self-Patterns in Psychopathological Diagnosis and Therapy. Psychopathology 2019; 52:33-49. [PMID: 31018215 PMCID: PMC6878753 DOI: 10.1159/000499315] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 02/28/2019] [Accepted: 02/28/2019] [Indexed: 11/19/2022]
Abstract
Categorization-based diagnosis, which endeavors to be consistent with the third-person, objective measures of science, is not always adequate with respect to problems concerning diagnostic accuracy, demarcation problems when there are comorbidities, well-documented problems of symptom amplification, and complications of stigmatization and looping effects. While psychiatric categories have proved useful and convenient for clinicians in identifying a recognizable constellation of symptoms typical for a particular disorder for the purposes of communication and eligibility for treatment regimes, the reification of these categories has without doubt had negative consequences for the patient and also for the general understanding of psychiatric disorders. We argue that a complementary, integrated framework that focuses on descriptive symptom-based classifications (drawing on phenomenological interview methods and narrative) combined with a more comprehensive conception of the human subject (found in the pattern theory of self), can not only offer a solution to some of the vexed issues of psychiatric diagnosis but also support more efficacious therapeutic interventions.
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Affiliation(s)
- Anya Daly
- School of Philosophical and Historical Studies, The University of Melbourne, Melbourne, Victoria, Australia,
| | - Shaun Gallagher
- Lillian and Morrie Moss Chair of Excellence in Philosophy, Department of Philosophy, University of Memphis, Memphis, Tennessee, USA
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López-Muñoz F, Povedano-Montero FJ, Chee KY, Shen WW, Fernández-Martín P, García-Pacios J, Rubio G, Álamo C. A Bibliometric Analysis of Scientific Production on Second-Generation Anti-Psychotic Drugs in Malaysia. Malays J Med Sci 2019; 25:40-55. [PMID: 30899186 PMCID: PMC6422559 DOI: 10.21315/mjms2018.25.3.5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 04/24/2018] [Indexed: 11/23/2022] Open
Abstract
Objective We carried out a bibliometric study on the scientific papers related to second-generation antipsychotic drugs (SGAs) in Malaysia. Methods With the SCOPUS database, we selected those documents made in Malaysia whose title included descriptors related to SGAs. We applied bibliometric indicators of production and dispersion, as Price’s law and Bradford’s law, respectively. We also calculated the participation index of the different countries. The bibliometric data were also been correlated with some social and health data from Malaysia (total per capita expenditure on health and gross domestic expenditure on R&D). Results We found 105 original documents published between 2004 and 2016. Our results fulfilled Price’s law, with scientific production on SGAs showing exponential growth (r = 0.401, vs. r = 0.260 after linear adjustment). The drugs most studied are olanzapine (9 documents), clozapine (7), and risperidone (7). Division into Bradford zones yields a nucleus occupied by the Medical Journal of Malaysia, Singapore Medical Journal, Australian and New Zealand Journal of Psychiatry, and Pharmacogenomics. Totally, 63 different journals were used, but only one in the top four journals had an impact factor being greater than 3. Conclusion The publications on SGAs in Malaysia have undergone exponential growth, without evidence a saturation point.
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Affiliation(s)
- Francisco López-Muñoz
- Faculty of Health Sciences, University Camilo José Cela, Madrid, Spain.,Neuropsychopharmacology Unit, Hospital 12 de Octubre Research Institute (i+12), Madrid, Spain.,Portucalense Institute of Neuropsychology and Cognitive and Behavioural Neurosciences (INPP), Portucalense University, Porto, Portugal.,Thematic Network for Cooperative Health Research (RETICS), Addictive Disorders Network, Health Institute Carlos III, MICINN and FEDER, Madrid, Spain
| | - Francisco J Povedano-Montero
- Faculty of Health Sciences, University Camilo José Cela, Madrid, Spain.,Faculty of Biomedical Sciences and Health, European University of Madrid, Spain
| | - Kok-Yoon Chee
- Department of Psychiatry & Mental Health, Tunku Abdul Rahman Institute of Neuroscience, Kuala Lumpur Hospital, Kuala Lumpur, Malaysia
| | - Winston W Shen
- Departments of Psychiatry, Wan Fang Medical Center and School of Medicine, Taipei Medical University, Taipei, Taiwan
| | | | - Javier García-Pacios
- Faculty of Health Sciences, University Camilo José Cela, Madrid, Spain.,Laboratory of Cognitive and Computational Neuroscience, Center for Biomedical Technology, Technical University of Madrid and Complutense University of Madrid, Spain
| | - Gabriel Rubio
- Neuropsychopharmacology Unit, Hospital 12 de Octubre Research Institute (i+12), Madrid, Spain.,Thematic Network for Cooperative Health Research (RETICS), Addictive Disorders Network, Health Institute Carlos III, MICINN and FEDER, Madrid, Spain.,Department of Psychiatry, "Doce de Octubre" University Hospital, Complutense University, Madrid, Spain
| | - Cecilio Álamo
- Department of Biomedical Sciences (Pharmacology Area), Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
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López-Muñoz F, Tracy DK, Povedano-Montero FJ, Breedvelt J, García-Pacios J, Fernández-Martín MP, Rubio G, Álamo C. Trends in the scientific literature on atypical antipsychotic drugs in the United Kingdom: a bibliometric study. Ther Adv Psychopharmacol 2019; 9:2045125318820207. [PMID: 30800284 PMCID: PMC6378637 DOI: 10.1177/2045125318820207] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 11/13/2018] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE A bibliometric study was undertaken of peer-reviewed publications on atypical antipsychotic drugs (AADs) from the United Kingdom and the findings are presented herein. METHODS We selected the documents from the Scopus database. We applied several production and dispersion bibliometric indicators, including Price's law on the growth of the scientific literature, and Bradford's law. We also calculated a so-called 'participation index' across different countries. The bibliometric data were thereafter correlated with social and health data from the UK, including total per capita expenditure on health and gross domestic expenditure. RESULTS A total of 4156 original manuscripts were published within the timeframe 1967-2015. Our results are in accord with Price's law, with scientific output demonstrating exponential growth (r = 0.9227, as against an r = 0.8766 after adjustment). The drugs most widely evaluated were clozapine (465 documents), olanzapine (263) and risperidone (248). Stratification into Bradford zones produced a nucleus represented by the Journal of Psychopharmacology (168 articles) and British Journal of Psychiatry (159 articles). A total of 1250 different journals were evaluated. CONCLUSIONS Publications on AADs in the UK have shown exponential growth across the studied period, which is in line with the progressively burgeoning novel AAD releases. No evidence of a saturation point was observed.
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Affiliation(s)
- Francisco López-Muñoz
- Faculty of Health Sciences, Camilo José Cela University, C/ Alarcón 49, 28692 Villanueva de la Cañada, Madrid, Spain Neuropsychophar-macology Unit, Hospital 12 de Octubre Research Institute (i+12), Madrid, Spain Portucalense Institute of Neuropsychology and Cognitive and Behavioural Neurosciences (INPP), Portucalense University, Porto, Portugal
| | - Derek K Tracy
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK
| | - F Javier Povedano-Montero
- Faculty of Health Sciences, Camilo José Cela University, Madrid, Spain Faculty of Biomedical Sciences and Health, European University of Madrid, Spain
| | | | - Javier García-Pacios
- Faculty of Health Sciences, Camilo José Cela University, Madrid, Spain Laboratory of Cognitive and Computational Neuroscience, Center for Biomedical Technology, Technical University of Madrid and Complutense University of Madrid, Spain
| | | | - Gabriel Rubio
- Neuropsychophar-macology Unit, Hospital 12 de Octubre Research Institute (i+12), Madrid, Spain
| | - Cecilio Álamo
- Department of Biomedical Sciences (Pharmacology Area), Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
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Junker A, Bjørngaard JH, Bjerkeset O. Adolescent health and subsequent risk of self-harm hospitalisation: a 15-year follow-up of the Young-HUNT cohort. Child Adolesc Psychiatry Ment Health 2017; 11:25. [PMID: 28469702 PMCID: PMC5410696 DOI: 10.1186/s13034-017-0161-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Accepted: 04/13/2017] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Self-harm is associated with increased suicide risk, and constitutes a major challenge in adolescent mental healthcare. In the current study, we examined the association between different aspects of adolescent health and risk of later self-harm requiring hospital admission. METHODS We linked baseline information from 13 to 19 year old participants (n = 8965) in the Norwegian Young-HUNT 1 study to patient records of self-harm hospitalisation during 15 years of follow-up. We used Cox regression to estimate risk factor hazard ratios (HR). RESULTS Eighty-nine persons (71% female) were admitted to hospital because of self-harm. Intoxication/self-poisoning was the most frequent method (81%). Both mental (anxiety/depression, loneliness, being bullied) and somatic (epilepsy, migraine) health issues were associated with up to fourfold increased risk of self-harm-related hospital admission. CONCLUSIONS Several health issues during adolescence markedly increased the risk of later self-harm hospitalisation. Current findings should be incorporated in the strive to reduce self-harming and attempted suicides among young people.
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Affiliation(s)
- Asbjørn Junker
- 0000 0001 1516 2393grid.5947.fDepartment of Neuroscience, Faculty of Medicine, NTNU-Norwegian University of Science and Technology, Trondheim, Norway
| | - Johan Håkon Bjørngaard
- 0000 0001 1516 2393grid.5947.fDepartment of Public Health and General Practice, Faculty of Medicine, NTNU-Norwegian University of Science and Technology, Trondheim, Norway ,0000 0004 0627 3560grid.52522.32Forensic Department and Research Centre Brøset, St. Olavs University Hospital, Trondheim, Norway
| | - Ottar Bjerkeset
- 0000 0001 1516 2393grid.5947.fDepartment of Neuroscience, Faculty of Medicine, NTNU-Norwegian University of Science and Technology, Trondheim, Norway ,grid.465487.cFaculty of Health Sciences, Nord University, Levanger, Norway
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Yeung AWK, Goto TK, Leung WK. The Changing Landscape of Neuroscience Research, 2006-2015: A Bibliometric Study. Front Neurosci 2017; 11:120. [PMID: 28377687 PMCID: PMC5360093 DOI: 10.3389/fnins.2017.00120] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 02/27/2017] [Indexed: 11/17/2022] Open
Abstract
Background: It is beneficial to evaluate changes in neuroscience research field regarding research directions and topics over a defined period. Such information enables stakeholders to quickly identify the most influential research and incorporate latest evidence into research-informed education. To our knowledge, no study reported changes in neuroscience literature over the last decade. Therefore, the current study determined research terms with highest citation scores, compared publication shares of research areas and contributing countries in this field from 2006 to 2015 and identified the most productive journals. Methods: Data were extracted from Web of Science and Journal Citation Reports (JCR). Only articles and reviews published in journals classified under the JCR “Neurosciences” category over the period of interest were included. Title and abstract fields of each included publication were extracted and analyzed via VOSviewer to identify recurring terms with high relative citation scores. Two term maps were produced for publications over the study period to illustrate the extent of co-occurrence, and the impact of terms was evaluated based on their relative citation scores. To further describe the recent research priority or “hot spots,” 10 terms with the highest relative citation scores were identified annually. In addition, by applying Bradford's law, we identified 10 journals being the most productive journals per annum over the survey period and evaluated their bilbiometric performances. Results: From 2006 to 2015, there were 47 terms involved in the annual lists of top 10 terms with highest relative citation scores. The most frequently recurring terms were autism (8), meta-analysis (7), functional connectivity (6), default mode network (4) and neuroimaging (4). Neuroscience research related to psychology and behavioral sciences showed an increase in publication share over the survey period, and China has become one of the major contributors to neuroscience research. Ten journals were frequently identified (≥8 years) as core journals within the survey period. Discussion: The landscape of neuroscience research has changed recently, and this paper provides contemporary overview for researchers and health care workers interested in this field's research and developments. Brain imaging and brain connectivity terms had high relative citation scores.
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Affiliation(s)
- Andy Wai Kan Yeung
- Oral and Maxillofacial Radiology, Applied Oral Sciences, Faculty of Dentistry, University of Hong Kong Hong Kong, Hong Kong
| | - Tazuko K Goto
- Oral and Maxillofacial Radiology, Applied Oral Sciences, Faculty of Dentistry, University of Hong KongHong Kong, Hong Kong; Department of Oral and Maxillofacial Radiology, Tokyo Dental CollegeTokyo, Japan
| | - W Keung Leung
- Periodontology, Faculty of Dentistry, University of Hong Kong Hong Kong, Hong Kong
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López-Muñoz F, Sanz-Fuentenebro J, Rubio G, García-García P, Álamo C. Quo Vadis Clozapine? A Bibliometric Study of 45 Years of Research in International Context. Int J Mol Sci 2015; 16:23012-34. [PMID: 26404263 PMCID: PMC4613349 DOI: 10.3390/ijms160923012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/04/2015] [Accepted: 09/13/2015] [Indexed: 12/26/2022] Open
Abstract
We have carried out a bibliometric study about the international scientific publications on clozapine. We have used the EMBASE and MEDLINE databases, and we applied bibliometric indicators of production, as Price's Law on the increase of scientific literature. We also calculated the participation index (PI) of the different countries. The bibliometric data have also been correlated with some social and health data from the 12 most productive countries in biomedicine and health sciences. In addition, 5607 original documents dealing with clozapine, published between 1970 and 2013, were downloaded. Our results state non-fulfilment of Price's Law, with scientific production on clozapine showing linear growth (r=0.8691, vs. r=0.8478 after exponential adjustment). Seven of the 12 journals with the highest numbers of publications on clozapine have an Impact Factor>2. Among the countries generating clozapine research, the most prominent is the USA (PI=24.32), followed by the UK (PI=6.27) and Germany (PI=5.40). The differences among countries on clozapine research are significantly related to economic variables linked to research. The scientific interest in clozapine remains remarkable, although after the application of bibliometric indicators of production, a saturation point is evident in the growth of scientific literature on this topic.
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Affiliation(s)
- Francisco López-Muñoz
- Faculty of Health Sciences and Chair of Genomic Medicine, Camilo José Cela University, C/Castillo de Alarcón, 49, Urb. Villafranca del Castillo, 28692 Villanueva de la Cañada, Madrid, Spain.
- Department of Biomedical Sciences (Pharmacology Area), Faculty of Medicine and Health Sciences, University of Alcalá, Campus Universitario-C/19, Ctra. Madrid-Barcelona, Km. 33,600, 28871 Alcalá de Henares, Madrid, Spain.
- Neuropsychopharmacology Unit, "Hospital 12 de Octubre" Research Institute, Avda. Córdoba, s/n, Madrid 28041, Spain.
| | - Javier Sanz-Fuentenebro
- Neuropsychopharmacology Unit, "Hospital 12 de Octubre" Research Institute, Avda. Córdoba, s/n, Madrid 28041, Spain.
- Department of Psychiatry, 12 de Octubre University Hospital, Avda. Córdoba, s/n, Madrid 28041, Spain.
- Biomedical Research Center Network for Mental Health (CIBERSAM), Madrid 28029, Spain.
| | - Gabriel Rubio
- Neuropsychopharmacology Unit, "Hospital 12 de Octubre" Research Institute, Avda. Córdoba, s/n, Madrid 28041, Spain.
- Department of Psychiatry, 12 de Octubre University Hospital, Avda. Córdoba, s/n, Madrid 28041, Spain.
- Department of Psychiatry, Complutense University, Plaza de Ramón y Cajal, s/n, Ciudad Universitaria, Madrid 28040, Spain.
- Networks for Cooperative Research in Health (RETICS-Addictive Disorder Network), Institute of Health Carlos III (ISCIII), MICINN and FEDER, Madrid 28029, Spain.
| | - Pilar García-García
- Department of Biomedical Sciences (Pharmacology Area), Faculty of Medicine and Health Sciences, University of Alcalá, Campus Universitario-C/19, Ctra. Madrid-Barcelona, Km. 33,600, 28871 Alcalá de Henares, Madrid, Spain.
| | - Cecilio Álamo
- Department of Biomedical Sciences (Pharmacology Area), Faculty of Medicine and Health Sciences, University of Alcalá, Campus Universitario-C/19, Ctra. Madrid-Barcelona, Km. 33,600, 28871 Alcalá de Henares, Madrid, Spain.
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Schizoaffective disorder diagnosed according to different diagnostic criteria--systematic literature search and meta-analysis of key clinical characteristics and heterogeneity. J Affect Disord 2014; 156:111-8. [PMID: 24388040 DOI: 10.1016/j.jad.2013.12.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 12/02/2013] [Accepted: 12/02/2013] [Indexed: 02/03/2023]
Abstract
BACKGROUND Schizoaffective disorder is viewed as a heterogeneous diagnosis among psychotic illnesses. Different diagnostic systems differ in their definition with DSM (-IIIR, -IV, and -V) providing a narrower definition than RDC and ICD-10. It is unclear whether this difference is reflected in patient samples diagnosed according to different diagnostic systems. METHODS Exploratory study based on a systematic review of studies of schizoaffective disorder samples diagnosed by either RDC and ICD-10 (group of "broad criteria") or DSM-IIIR and -IV ("narrow criteria"); comparison (by Mann-Whitney-U-tests) of key characteristics, such as age, number of hospitalizations, or scores in psychometric tests, between more broadly and more narrowly defined schizoaffective disorder samples using standard deviations as a measurement of heterogeneity as well as weighted means and percentages. To reduce selection bias only studies including schizoaffective patient samples together with affective disorder and schizophrenia samples were selected. RESULTS 55 studies were included, 14 employing RDC, 4 ICD-10, 20 DSM-IIIR, and 17 DSM-IV. Thirteen characteristics were compared: patients diagnosed according to broader criteria had fewer previous hospitalizations (2.2 vs. 5.4) and were both less often male (42 vs. 51%) and married (21 vs. 40%). Heterogeneity was similar in both groups but slightly higher in RDC and ICD-10 samples than in DSM-IIIR and -IV-samples: +4% regarding demographic and clinical course data and +13% regarding psychometric tests (pooled SD). LIMITATIONS Secular trends and different designs may have confounded the results and limit generalizability. Some comparisons were underpowered. CONCLUSIONS Differences in diagnostic criteria are reflected in key characteristics of samples. The association of larger heterogeneity with wider diagnostic criteria supports employing standard deviations as a measurement of heterogeneity.
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López-Muñoz F, Sim K, Shen WW, Huelves L, Moreno R, Molina JDD, Rubio G, Noriega C, Pérez-Nieto MÁ, Alamo C. A bibliometric study of scientific research conducted on second-generation antipsychotic drugs in Singapore. Singapore Med J 2014; 55:24-33. [PMID: 24452974 PMCID: PMC4291907 DOI: 10.11622/smedj.2014006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
INTRODUCTION A bibliometric study was carried out to ascertain the volume and impact of scientific literature published on second-generation antipsychotic drugs (SGAs) in Singapore from 1997 to 2011. METHODS A search of the EMBASE and MEDLINE databases was performed to identify articles originating from Singapore that included the descriptors 'atypic* antipsychotic*', 'second-generation antipsychotic*', 'clozapine', 'risperidone', 'olanzapine', 'ziprasidone', 'quetiapine', 'sertindole', 'aripiprazole', 'paliperidone', 'amisulpride', 'zotepine', 'asenapine', 'iloperidone', 'lurasidone', 'perospirone' and 'blonanserin' in the article titles. Certain bibliometric indicators of production and dispersion (e.g. Price's Law on the increase of scientific literature, and Bradford's Law) were applied, and the participation index of various countries was calculated. The bibliometric data was also correlated with some social and health data from Singapore, such as the total per capita expenditure on health and gross domestic expenditure on research and development. RESULTS From 1997 to 2011, a total of 51 articles on SGAs in Singapore were published. Our results suggested non-fulfilment of Price's Law (r = 0.0648 after exponential adjustment vs. r = 0.2140 after linear adjustment). The most widely studied drugs were clozapine (21 articles), risperidone (16 articles) and olanzapine (8 articles). Division into Bradford zones yielded a nucleus occupied by the Journal of Clinical Psychopharmacology (6 articles) and the Singapore Medical Journal(4 articles). The analysed material was published in a total of 30 journals, with the majority from six journals. Four of these six journals have an impact factor greater than 2. CONCLUSION Publications on SGAs in Singapore are still too few to confirm an exponential growth of scientific literature.
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Affiliation(s)
- Francisco López-Muñoz
- Faculty of Health Sciences, Camilo José Cela University, C/ Castillo de Alarcón, 49, Urb Villafranca del Castillo, Villanueva de la Cañada, 28692 Madrid, Spain.
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Larivière V, Diepeveen S, Ni Chonaill S, Macaluso B, Pollitt A, Grant J. International comparative performance of mental health research, 1980-2011. Eur Neuropsychopharmacol 2013; 23:1340-7. [PMID: 23452564 DOI: 10.1016/j.euroneuro.2013.01.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 01/17/2013] [Accepted: 01/19/2013] [Indexed: 10/27/2022]
Abstract
Scientific understanding of mental illness, mental health and their neurobiological and psychosocial underpinnings has greatly increased in the last three decades. Yet, little is known about the landscape of this knowledge and how and where it is evolving. This paper provides a bibliometric assessment of mental health research (MHR) outputs from 1980 to 2011. MHR papers were retrieved using three strategies: from key mental health journals; using US National Library of Medicine Medical Subject Heading (MeSH) keywords; and from additional journals in which mental health topics accounted for over 75% of papers. The number of papers per year increased over time in absolute terms and as a proportion of total medical output. The US's proportion of world publication output dropped from 60% in 1980 to 42% in 2011, while the EU increased its share from 27% to 40%. Countries with greater research intensity in mental health generally had higher citation impact, such as the US, UK, Canada and the Netherlands. MHR also became more collaborative: 3% of all MHR papers published in 1980 were the result of international collaboration compared to 22% in 2011. We conclude by noting that the rise in MHR appears to be due to funding and that bibliometrics can help highlight the potential drivers of variation in performance of MHR systems. The paper provides an analytical basis for benchmarking MHR trends in the future.
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Affiliation(s)
- Vincent Larivière
- École de bibliothéconomie et des sciences de l'information, Université de Montréal, C.P. 6128, Succ. Centre-Ville, Montréal, Canada QC H3C 3J7; Observatoire des Sciences et des Technologies (OST), Centre Interuniversitaire de Recherche sur la Science et la Technologie (CIRST), Université du Québec à Montréal, CP 8888, Succ. Centre-Ville, Montréal, Canada QC H3C 3P8
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16
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López-Muñoz F, Shen WW, Pae CU, Moreno R, Rubio G, Molina JD, Noriega C, Pérez-Nieto MA, Huelves L, Álamo C. Trends in scientific literature on atypical antipsychotics in South Korea: a bibliometric study. Psychiatry Investig 2013; 10:8-16. [PMID: 23482954 PMCID: PMC3590435 DOI: 10.4306/pi.2013.10.1.8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 07/30/2012] [Accepted: 08/01/2012] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE We have carried out a bibliometric study on the scientific publications in relation to atypical or second-generation antipsychotic drugs (SGAs) in South Korea. METHODS With the EMBASE and MEDLINE databases, we selected those publications made in South Korea whose title included the descriptors atypic(*) (atypical(*)) antipsychotic(*), second-generation antipsychotic(*), clozapine, risperidone, olanzapine, ziprasidone, quetiapine, sertindole, aripiprazole, paliperidone, amisulpride, zotepine, asenapine, iloperidone, lurasidone, perospirone and blonanserin. We applied some bibliometric indicators of paper production and dispersion with Price's law and Bradford's law, respectively. We also calculated the participation index (PI) of the different countries, and correlated the bibliometric data with some social and health data from Korea (such as total per capita expenditure on health and gross domestic expenditure on research and development). RESULTS We collected 326 original papers published between 1993 and 2011. Our results state fulfilment of fulfilled Price's law, with scientific production on SGAs showing exponential growth (correlation coefficient r=0.8978, as against an r=0.8149 after linear adjustment). The most widely studied drugs were risperidone (91 papers), aripiprazole (77), olanzapine (53), and clozapine (43). Division into Bradford zones yielded a nucleus occupied by the Progress in Neuro-Psychopharmacology and Biological Psychiatry (36 articles). A total of 86 different journals were published, with 4 of the first 10 used journals having an impact factor being greater than 4. CONCLUSION The publications on SGAs in South Korea have undergone exponential growth over the studied period, without evidence of reaching a saturation point.
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Affiliation(s)
- Francisco López-Muñoz
- Faculty of Health Sciences, Camilo José Cela University, Madrid, Spain
- Department of Pharmacology, University of Alcalá, Madrid, Spain
| | - Winston W. Shen
- Department of Psychiatry, Wan Fang Medical Center and School of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Chi-Un Pae
- Department of Psychiatry, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
- Department of Psychiatry and Behavioral Science, Duke University Medical Center, Durham, NC, USA
| | - Raquel Moreno
- Faculty of Health Sciences, Camilo José Cela University, Madrid, Spain
| | - Gabriel Rubio
- Department of Psychiatry, "Doce de Octubre" University Hospital, Complutense University, Madrid, Spain
| | - Juan D. Molina
- Faculty of Health Sciences, Camilo José Cela University, Madrid, Spain
- Acute Inpatients Unit, Dr. R. Lafora Psychiatric Hospital, Madrid, Spain
| | - Concha Noriega
- Faculty of Health Sciences, Camilo José Cela University, Madrid, Spain
| | | | - Lorena Huelves
- Faculty of Health Sciences, Camilo José Cela University, Madrid, Spain
| | - Cecilio Álamo
- Department of Pharmacology, University of Alcalá, Madrid, Spain
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López-Muñoz F, Shinfuku N, Shen WW, Moreno R, Molina JD, Rubio G, Huelves L, Noriega C, Pérez-Nieto MA, Álamo C. Thirty years of scientific research on second-generation antipsychotic drugs in Japan: A bibliometric analysis. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ojpsych.2013.31004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Abstract
This article does not directly consider the feelings and emotions that occur in mental illness. Rather, it concerns a higher level methodological question: To what extent is an analysis of feelings and felt emotions of importance for psychiatric classification? Some claim that producing a phenomenologically informed descriptive psychopathology is a prerequisite for serious taxonomic endeavor. Others think that classifications of mental disorders may ignore subjective experience. A middle view holds that classification should at least map the contours of the phenomenology of mental illness. This article examines these options. I conclude that it is not true that phenomenology is a logical prerequisite for classification, nor even that classification should necessarily respect phenomenological boundaries, but that detailed phenomenological examination can sometimes inform classification.
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Affiliation(s)
- Rachel Cooper
- Department of Politics, Philosophy, and Religion, Lancaster University, UK
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Haslam N, Lusher D. The structure of mental health research: networks of influence among psychiatry and clinical psychology journals. Psychol Med 2011; 41:2661-2668. [PMID: 21733211 DOI: 10.1017/s0033291711000821] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Psychiatry and clinical psychology are the two dominant disciplines in mental health research, but the structure of scientific influence and information flow within and between them has never been mapped. METHOD Citations among 96 of the highest impact psychiatry and clinical psychology journals were examined, based on 10 052 articles published in 2008. Network analysis explored patterns of influence between journal clusters. RESULTS Psychiatry journals tended to have greater influence than clinical psychology journals, and their influence was asymmetrical: clinical psychology journals cited psychiatry journals at a much higher rate than the reverse. Eight journal clusters were found, most dominated by a single discipline. Their citation network revealed an influential central cluster of 'core psychiatry' journals that had close affinities with a 'psychopharmacology' cluster. A group of 'core clinical psychology' journals was linked to a 'behavior therapy' cluster but both were subordinate to psychiatry journals. Clinical psychology journals were less integrated than psychiatry journals, and 'health psychology/behavioral medicine' and 'neuropsychology' clusters were relatively peripheral to the network. CONCLUSIONS Scientific publication in the mental health field is largely organized along disciplinary lines, and is to some degree hierarchical, with clinical psychology journals tending to be structurally subordinate to psychiatry journals.
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Affiliation(s)
- N Haslam
- Department of Psychology, University of Melbourne, Parkville, VIC, Australia.
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Abstract
The aim of this study was to ascertain whether there is any evidence of stigma related to the use of antidepressants. Using the PubMed and MEDLINE databases, we searched for the terms stigma, antidepressants, and depression. A protocol was developed to extract information from the papers, which were identified and explored further. Thirty-two papers were identified. We found that the stigma against depression differs from stigma against the use of antidepressants. Stigma against depression does not impact on therapeutic adherence to antidepressant use. Stigma related to antidepressant use appears to be linked with perceived emotional weakness, severity of illness, an inability to deal with problems, and a lack of belief in the therapeutic efficacy of antidepressants. Stigma against medication can be a useful target for interventions, just like the stigma related to depression. However, clinicians must be careful in avoiding the medicalization of symptoms.
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Theander SS, Wetterberg L. Schizophrenia in Medline 1950-2006: a bibliometric investigation. Schizophr Res 2010; 118:279-84. [PMID: 19497712 DOI: 10.1016/j.schres.2009.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 05/07/2009] [Accepted: 05/12/2009] [Indexed: 10/20/2022]
Abstract
The aim was to perform a bibliometric study, and compare the quantity of publications on schizophrenia with the total medical literature in Medline during 57 years, 1950-2006. The annual additions of literature to Medline are continually increasing and form the Medline growth curve. Comparisons of the number of publications on schizophrenia, or any other disease, to this curve, may be used to estimate the research activity. Methods for the identification of relevant references to papers on schizophrenia were evaluated and three different samples were operationally defined, retrieved and counted. During 1950-2006, 16.28 million references were added to Medline. Nearly 68000, 0.42%, references were related to schizophrenia. The percentage of papers on schizophrenia among the psychiatric literature decreased from 5.2 to 2.6%. The present study indicates that the number of references on schizophrenia in Medline has followed the general increase of medical publications. This pattern differs compared to some other research fields such as dementia, HIV, and peptic ulcer. Samples of references on schizophrenia may be retrieved in Medline by operational definitions of search methods. The quantity of schizophrenia research during 57 years has kept pace with the total medical literature. One interpretation of the results is that more resources are needed to enhance research activities on schizophrenia.
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Affiliation(s)
- Sten S Theander
- Division of Psychiatry, Department of Clinical Sciences, Lund University, Sweden
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García-García P, López-Muñoz F, Rubio G, Martín-Agueda B, Alamo C. Phytotherapy and psychiatry: bibliometric study of the scientific literature from the last 20 years. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2008; 15:566-576. [PMID: 18583120 DOI: 10.1016/j.phymed.2008.04.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2008] [Revised: 04/15/2008] [Accepted: 04/30/2008] [Indexed: 05/26/2023]
Abstract
In diverse areas of therapy, including psychiatry, increasing interest in herbal medicine has been shown in recent years. Plants have a wide range of traditional uses, but only a few have been approved therapeutically. Moreover, to our knowledge, no bibliometric analyses on medicinal plants used in psychiatry have been carried out to date. We performed a bibliometric study on scientific publication related to phytotherapy in the psychiatry area during the period 1986-2006. Using the platform Embase.com, including the EMBASE and MEDLINE databases, we selected those documents including the descriptors plant*, herb*, phytotherapy*, phytomedicine*, pharmacognosy*, and psychiatry* (with all diagnostic criteria). The plants' indications were selected according to the PDR for Herbal Medicines. As a bibliometric indicator of the production, Price's Law was applied. Another indicator included was the national participation index (PI) for overall scientific production. A total of 21,409 original documents were obtained. Our data confirm a fulfillment of Price's Law related to scientific production on medicinal plants in Psychiatry. This was observed after we made a linear fit (y=135.08x-466.38; r=0.92) and another fit to an exponential curve (y=132.26e(0.1497x); r=0.99). The plants most widely mentioned in the psychiatric literature were St. John's wort (Hypericum perforatum L.; n=937) and ginkgo (Ginkgo biloba L.; n=694). The countries with the highest percentages of documents were the United States (29.44%), Germany (9.41%) and Japan (8.75%), and those with highest proportional PI were India (IPa=0.935) and China (IPa=0.721). Productivity on medicinal plants in the psychiatry area increased during the period 1986-2006. Nevertheless, documents about therapeutic herbs in this medical field are still relatively few in number.
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Affiliation(s)
- P García-García
- Department of Pharmacology, University of Alcalá, C/ Juan Ignacio Luca de Tena 8, 28027 Madrid, Spain
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