Zhang Tai, Zhang Beihua, Ma Xiangxue, Zhang Jiaqi, Wei Yuchen, Wang Fengyun, Tang Xudong
Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
Department of Gastroenterology, Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
Front Neurosci. 2023 Mar 8;17:1109510. doi: 10.3389/fnins.2023.1109510. eCollection 2023.
OBJECTIVES: This study aims to perform a bibliometric analysis of functional dyspepsia (FD), which includes visualizing bibliographic information, in order to identify prevailing study themes, topics of interest, contributing journals, countries, institutions, and authors as well as co-citation patterns. METHODS: The Web of Science™ Core Collection Database was used to retrieve all peer-reviewed scientific publications related to FD research. The validated search terms were entered into the "title" and "author keywords" fields, and the results were sorted by publication year from 2006 to 2022. There were no restrictions on language. On 12 February 2023, a manual export of the complete metadata for each original publication and review article was performed. CiteSpace was used to reveal co-authorship, publication, and co-citation patterns to find prominent authors, organizations, countries, and journals in FD research as well as to identify author keywords with strong citation bursts, which could indicate an emerging research area. VOSviewer was used to build the co-occurrence indicator (co-word) to identify the main author keywords on which previous studies focused and to induce clustered scientific landscape for two consecutive periods to identify intriguing areas for future research. RESULTS: A search of the database retrieved 2,957 documents. There was a wave-like pattern in the number of publications until 2017, after which there was a spike in publication volume. The USA, China, and Japan provided the majority of contributions. In terms of institution, Mayo Clin, Univ Newcastle, and Katholieke Univ Leuven were found to be the prolific institutions. Additionally, the results indicate that eastern Asian researchers contributed significantly to the global knowledge of literature that led other countries; however, Canada, the USA, Australia, England, and Germany were found to have the highest degree of betweenness centrality. Nicholas J. Talley, Jan Tack, Gerald Holtmann, Michael Camilleri, Ken Haruma, and Paul Moayyedi occupied the top positions based on productivity and centrality indicators. Six thematic clusters emerged ( infection; pathophysiological mechanisms of FD; extraintestinal co-morbidities and overlap syndromes associated with FD; herbal medicine in FD; diabetic gastroparesis; and dietary factors in FD). "Acupuncture," "duodenal eosinophilia," "gut microbiota," and others were among the author keywords with rising prevalence. CONCLUSION: In FD research, eastern Asian countries have established themselves as major contributors with the highest publishing productivity; however, research has primarily been driven by North America, Europe, and Australia, where cooperation is generally more active and highly influential scientific results are produced. Our analysis suggests that increased investments, training of human resources, improved infrastructures, and expanded collaborations are essential to improving the quality of FD research in Asia. The emerging author keyword analysis suggests that eosinophil-mast cell axis, gut microbiota, mental disorders, and acupuncture are the key areas that attract researchers' attention as future research boulevards. There is a highly skewed distribution of research output across Asia, with most focus on complementary and alternative medicine (CAM) coming from Chinese, Japanese, and South Korean centers. However, CAM remains an underexplored area of research in the context of FD, and it deserves greater research efforts in order to obtain quality scientific evidence. Furthermore, we propose that the research framework of CAM should not be limited to dysmotility; rather, it could be interpreted within a more holistic context that includes the brain-gut-microbiota axis, as well as novel concepts such as duodenitis, increased mucosal permeability, and infiltration and activation of eosinophils and mast cells, among others. Overall, we provided bibliometrics-based overviews of relevant literature to researchers from different backgrounds and healthcare professionals to provide an in-depth overview of major trends in FD research.
目的:本研究旨在对功能性消化不良(FD)进行文献计量分析,包括可视化文献信息,以确定主要的研究主题、感兴趣的话题、主要贡献期刊、国家、机构、作者以及共被引模式。 方法:使用科学网核心合集数据库检索所有与FD研究相关的同行评审科学出版物。将经过验证的检索词输入“标题”和“作者关键词”字段,并按2006年至2022年的出版年份对结果进行排序。语言无限制。2023年2月12日,对每篇原始出版物和综述文章的完整元数据进行了手动导出。使用CiteSpace揭示共同作者、出版和共被引模式,以找出FD研究中杰出的作者、组织、国家和期刊,并识别具有强烈引文爆发的作者关键词,这可能表明一个新兴的研究领域。使用VOSviewer构建共现指标(共词),以确定先前研究关注的主要作者关键词,并为连续两个时期归纳聚类科学景观,以识别未来研究的有趣领域。 结果:对数据库的搜索检索到2957篇文献。在2017年之前,出版物数量呈波浪状模式,之后出版量出现激增。美国、中国和日本的贡献最大。在机构方面,梅奥诊所、纽卡斯尔大学和鲁汶天主教大学是多产机构。此外,结果表明东亚研究人员对引领其他国家的全球文献知识做出了重大贡献;然而,加拿大、美国、澳大利亚、英国和德国的中间中心性程度最高。尼古拉斯·J·塔利、扬·塔克、杰拉尔德·霍尔特曼、迈克尔·卡米勒里、Ken Haruma和保罗·莫阿耶迪在生产力和中心性指标方面占据领先地位。出现了六个主题聚类(感染;FD的病理生理机制;与FD相关的肠外合并症和重叠综合征;FD中的草药;糖尿病胃轻瘫;以及FD中的饮食因素)。“针灸”、“十二指肠嗜酸性粒细胞增多”、“肠道微生物群”等是患病率上升的作者关键词。 结论:在FD研究中,东亚国家已成为出版生产力最高的主要贡献者;然而,研究主要由北美、欧洲和澳大利亚推动,这些地区的合作通常更活跃,产生的科学成果具有高度影响力。我们的分析表明,增加投资、人力资源培训、改善基础设施和扩大合作对于提高亚洲FD研究的质量至关重要。新兴的作者关键词分析表明,嗜酸性粒细胞 - 肥大细胞轴、肠道微生物群、精神障碍和针灸是吸引研究人员作为未来研究方向关注的关键领域。亚洲各地的研究产出分布极不均衡,大部分对补充和替代医学(CAM)的关注来自中国、日本和韩国的研究中心。然而,在FD背景下,CAM仍然是一个未充分探索的研究领域,值得加大研究力度以获得高质量的科学证据。此外,我们建议CAM的研究框架不应局限于动力障碍;相反,它可以在更全面的背景下进行解释,包括脑 - 肠 - 微生物群轴,以及诸如十二指肠炎、黏膜通透性增加、嗜酸性粒细胞和肥大细胞的浸润和激活等新概念。总体而言,我们为来自不同背景的研究人员和医疗保健专业人员提供了基于文献计量学的相关文献综述,以深入概述FD研究的主要趋势。
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