人工智能应用于糖尿病视网膜病变的文献计量学分析

背景 近年来,人工智能（AI）在医学领域发展迅速,在糖尿病视网膜病变（DR）中的应用范围不断扩展。目的 通过文献计量分析总结AI在DR领域的应用情况,阐明AI在DR领域相关研究的现状、热点和新兴趋势,以期为未来的研究提供思路。方法 以Web of Science数据库为来源,检索建库至2022-11-04的AI应用于DR领域的相关文献,运用CiteSpace软件对纳入文献进行发文量、国家、机构、作者、共被引和关键词的文献计量学分析。结果共获得1 770篇文献,2011年1月至2022年11月发文量总体呈上升趋势,2021年发文量达峰值（402篇）。中国是发文量（440篇）位居第1的国家,英国为中心性（0.26）最高的国家。机构合作网络图谱共纳入436家机构,以中山大学和首都医科大学为代表。作者合作网络图谱共纳入601位作者,以JIA Y L和HWANG T为代表。GULSHAN V、ABRàMOFF M D与TING D W 3位高被引作者对该领域做出了重要贡献。Ophthalmology、Invest Ophth Vis Sci和Ieee T Med Imaging是AI应用于DR领...     

PDCA运用于医院管理的文献计量学分析

目的了解PDCA运用于我国医院管理的现况,找出问题并提出建议,以期为进一步研究提供参考。方法利用Excel和CiteSpace软件,对在中国学术期刊网络出版数据库检索到的1 764篇文献,从时间、期刊、作者、单位、关键词等方面进行文献计量学分析。结果相关研究大致分为初探期、缓慢发展期与迅速发展期三个阶段。文献共来源于370种期刊,包含4 417位作者,涉及1 228个研究单位。除“PDCA”外,关键词“医院感染管理”出现频次最高。研究总体上呈现出由点到面、宏观与微观相结合的发展趋势。结论发文量逐年递增,发文作者与单位数量众多但未形成合作团体,文献质量整体上有待进一步提高。研究主题范围广泛,但研究内容较单调。研究方法大致分为理论描述与实验研究两类,但不同研究的PDCA使用过程存在差异。相关研究领域学者应关注存在问题并持续改进。     

针灸治疗胃肠疾病的实验研究文献计量分析与数据挖掘

目的：统计分析2016—2020年期间发表的针灸治疗胃肠疾病的实验研究文献,总结归纳针灸治疗胃肠道疾病的主要研究方向与进展。方法：检索国家知识基础设施数据库（CNKI）、中国学术期刊数据库（CSPD）、中文科技期刊数据库（CCD）、Pubmed及Web of Science数据库,根据纳入与排除标准筛选针灸治疗胃肠疾病的实验研究文献,并对结果进行计量统计分析。结果：近5年来针灸治疗功能性胃肠疾病的实验研究以肠易激综合征与功能性消化不良为主,器质性胃肠病则是以溃疡性结肠炎为主。电针和灸法是针灸治疗胃肠疾病的主要方法,功能性胃肠病以电针干预为主,器质性胃肠病以灸法为主。足三里、天枢、上巨虚、中脘是针灸治疗胃肠疾病的主要穴位。功能性胃肠疾病的针灸实验研究侧重于胃肠动力、内脏高敏感、情绪相关机制,器质性胃肠疾病的针灸实验研究侧重于炎症与免疫相关机制。结论：近5年针灸治疗功能性胃肠疾病实验以电针干预为主,侧重于胃肠动力、内脏高敏感、情绪相关机制研究;器质性胃肠病的针灸实验研究以灸法为主,侧重于炎症与免疫相关机制。     

新型免疫抑制剂FTY720研究的文献分析

通过对国内外五大权威数据库MEDINE、CBMDISC、清华同方全文数据库、万方期刊全文数据库、维普中文期刊全文数据库收入FTY720文献的计量学分析。了解国内外FTY720研究的概况及意义；分析发表FTY720研究成果的核心期刊、语种、国家；比较国内外在FTY720研究领域的差距，并对此提出思考。     

抑癌基因P53专题文献计量研究

Ｐ５３基因是与人类肿瘤关系最为密切的肿瘤抑制基因，有大量相关论文发表。为了探索这一专题的研究现状及趋势，作者根据文献计量方法，利用中国医科大学编制的统计分析软件，对世界权威医学数据库ＭＥＤＬＩＮＥ收录的该专题１９９１－１９９６年的全部相关论文进行主题词及副主题分析。结果表明，研究主要集中在Ｐ５３生物活性及作用机理，Ｐ５３突变的流行病学研究及突变谱分析等方面。不同肿瘤各有研究侧重，且每年都有新热点。     

Publication trends in obstructive sleep apnea: Evidence of need for more evidence

ObjectivePublished research in obstructive sleep apnea (OSA) appears limited despite OSA being a highly prevalent adult and pediatric disease leading to many adverse outcomes if left untreated. We aimed to quantify the deficit in OSA scientific literature in order to provide a novel way of identifying gaps in knowledge and a need for further research inquiry.MethodsThis was a Bibliometric analysis study. Using Ovid Medline database we analyzed and compared research output (medical and surgical) between adult OSA and similarly prevalent chronic conditions (Type II diabetes (T2DM), coronary artery disease (CAD) and osteoarthritis (OA)) from December 2016 up to fifty years prior. Linear graphs were utilized to trend collected data. Utilizing same strategy, we compared publication trends for pediatric OSA to asthma and gastroesophageal reflux (GER).ResultsAdult OSA publications (n = 9314) were significantly underrepresented when compared to T2DM (n = 66,023), CAD (n = 31,526) and OA (n = 34,123). Linear plots demonstrated that despite increasing number of publications this disparity persisted annually. Surgical literature composed 10.4% (n = 972) of adult OSA publications and reached a plateau in the last ten years. Pediatric OSA (n = 2994) had less research output when compared to asthma (n = 47,442) and GER (n = 6705). However, over past five years pediatric OSA surpassed GER in annual number of publications. Surgical literature represented 23.1% (n = 693) of pediatric OSA publications and continued increasing over past ten years. Study methodologies for both adult and pediatric OSA showed a lack of randomized controlled trials and meta-analyses in comparison to other diseases.ConclusionOur review shows substantial deficit in total, annual and surgical adult OSA published research compared to similarly prevalent diseases. This trend is not entirely observed in pediatric OSA literature.     

Seven decades of Ramadan intermittent fasting research: Bibliometrics analysis,global trends,and future directions

Background and aimsThere is a large body of research focused on various aspects related to Ramadan intermittent fasting (RIF) and human health and disease. This study aimed to quantify the bibliometric data of RIF medical research over the past seven decades and explore these variables qualitatively via text mining analysis.MethodsWe used the Scopus search engine to identify published articles related to RIF from inception to December 31, 2021. All types of research articles were included. Scientometric and bibliometric measures were determined using Excel, Biblioshiny, and VOSviewer. This study proposed a bibliometric and text mining method to qualitatively and quantitatively recognize the RIF research trend.ResultsThe Scopus search returned 1915 relevant articles. Most citations pertained to publications from the last two decades, and most publications were original research articles. These publications had received around 27,000 citations, and the 20 most prolific publishing journals had an average h-index of 112.25. More than one-third of all medical publications were in open-access journals. There was a 13-fold increase in medical research on RIF over the past few decades. We identified the 10 most prolific publishing countries, institutes, journals, and authors. We also identified five scientific hotspots of RIF scientific literature, which were: diabetes, metabolic health, public health, physiology, and maternity.ConclusionThis is the first comprehensive bibliometric analysis of medical research related to RIF. The research gaps identified will shape future research directions and foster collaborative research activities toward enhanced medical nutrition research revolving around RIF.     

Global research trends in the microbiome related to irritable bowel syndrome: A bibliometric and visualized study

BACKGROUNDIrritable bowel syndrome (IBS) is a common functional gastrointestinal disorder. Dysregulation of the gut–brain axis plays a central role in the pathophysiology of IBS. It is increasingly clear that the microbiome plays a key role in the development and normal functioning of the gut–brain axis.AIMTo facilitate the identification of specific areas of focus that may be of relevance to future research. This study represents a bibliometric analysis of the literature pertaining to the microbiome in IBS to understand the development of this field. METHODSThe data used in our bibliometric analysis were retrieved from the Scopus database. The terms related to IBS and microbiome were searched in titles or abstracts within the period of 2000–2019. VOSviewer software was used for data visualization. RESULTSA total of 13055 documents related to IBS were retrieved at the global level. There were 1872 scientific publications focused on the microbiome in IBS. There was a strong positive correlation between publication productivity related to IBS in all fields and productivity related to the microbiome in IBS (r = 0.951, P < 0.001). The United States was the most prolific country with 449 (24%) publications, followed by the United Kingdom (n = 176, 9.4%), China (n = 154, 8.2%), and Italy (n = 151, 8.1%). The h-index for all retrieved publications related to the microbiome in IBS was 138. The hot topics were stratified into four clusters: (1) The gut–brain axis related to IBS; (2) Clinical trials related to IBS and the microbiome; (3) Drug-mediated manipulation of the gut microbiome; and (4) The role of the altered composition of intestinal microbiota in IBS prevention. CONCLUSIONThis is the first study to evaluate and quantify global research productivity pertaining to the microbiome in IBS. The number of publications regarding the gut microbiota in IBS has continuously grown since 2013. This finding suggests that the future outlook for interventions targeting the gut microbiota in IBS remains promising.     

Indicadores bibliométricos para evaluar la actividad científica

Bibliometric indicators have been devised to quantify scientific production and to try to evaluate its impact in the community. In general, bibliometric indicators can be classified according to whether the unit of analysis is the author (individual or group) or journal. The most widely used indicators for authors are those that measure an individual author's production, such as the Crown index or the h-index and its derivatives (e-index, h5-index, and the absolute or Ab-index, among others). The bibliometric indicators devised to try to evaluate journal quality are associated with Journal Citation Reports (e.g., impact factor, field-weighted citation impact, Eigenfactor, and article influence) or with Scopus (Scimago Journal Rank (SJR), source normalized impact per paper (SNIP), and CiteScore). This article describes the main bibliometric indicators, explains how they are calculated, and discusses their advantages and limitations.