Relación entre la enfermedad periodontal y la enfermedad pulmonar obstructiva crónica: revisión bibliográfica / Relationship between periodontal disease and chronic obstructive pulmonary disease: a bibliographic review

Introducción: la enfermedad periodontal y la enfermedad pulmonar obstructiva crónica son patologías de origen inflamatorio crónico y progresivo que afectan a pacientes de edad avanzada, fumadores con mal estado de salud oral, encontrándose una correlación por el grado de severidad en la enfermedad periodontal sobre aquellos individuos con presencia de enfermedad pulmonar obstructiva crónica (EPOC) y exacerbaciones. Objetivos: determinar la relación de la enfermedad periodontal y la enfermedad pulmonar obstructiva crónica, explicando los factores de riesgo que intervienen en estas enfermedades. Material y métodos: se realizó una búsqueda en los principales buscadores de datos digitales: PubMed, SciELO, Science Direct, BMC, Journal of Periodontology, Web of Science y Scopus. Se escogieron artículos publicados en los últimos cinco años; se excluyeron artículos incompletos y que no se relacionan al tema. En el resultado de la búsqueda, 45 artículos cumplieron con el propósito de la revisión bibliográfica. Resultados: en esta revisión bibliográfica, se obtuvo que 18 artículos comprueban la relación de la enfermedad periodontal y la enfermedad pulmonar obstructiva crónica. Conclusiones: se ha comprobado la relación entre la enfermedad periodontal y enfermedad pulmonar obstructiva crónica. Se requiere el análisis de más estudios para determinar una relación directa entre estas dos enfermedades e incluir variables como la edad y el tratamiento (AU)

Introduction: periodontal disease and chronic obstructive pulmonary disease are diseases of chronic and progressive inflammatory origin that affect elderly patients, smokers with poor oral health, finding a correlation by the degree of severity in periodontal disease on those individuals with the presence of chronic obstructive pulmonary disease (COPD) and exacerbations. Objectives: to determine the relationship between periodontal disease and chronic obstructive pulmonary disease explaining the risk factors involved in these diseases. Material and methods: a search was carried out in the main digital data search engines: PubMed, SciELO, Science Direct, BMC, Journal of Periodontology, Web of Science, and Scopus, articles published in the last 5 years were chosen, incomplete articles and those not related to the subject were excluded, in the result of the search 45 articles fulfilled the purpose of the bibliographic review. Results: in this literature review it was obtained that 18 articles, prove the relationship between periodontal disease and chronic obstructive pulmonary disease. Conclusions: the relationship between periodontal disease and chronic obstructive pulmonary disease has been proved. More studies are needed to determine a direct relationship between these two diseases and to include variables such as age and treatment (AU)

The methodological quality of 176,620 randomized controlled trials published between 1966 and 2018 reveals a positive trend but also an urgent need for improvement.

Many randomized controlled trials (RCTs) are biased and difficult to reproduce due to methodological flaws and poor reporting. There is increasing attention for responsible research practices and implementation of reporting guidelines, but whether these efforts have improved the methodological quality of RCTs (e.g., lower risk of bias) is unknown. We, therefore, mapped risk-of-bias trends over time in RCT publications in relation to journal and author characteristics. Meta-information of 176,620 RCTs published between 1966 and 2018 was extracted. The risk-of-bias probability (random sequence generation, allocation concealment, blinding of patients/personnel, and blinding of outcome assessment) was assessed using a risk-of-bias machine learning tool. This tool was simultaneously validated using 63,327 human risk-of-bias assessments obtained from 17,394 RCTs evaluated in the Cochrane Database of Systematic Reviews (CDSR). Moreover, RCT registration and CONSORT Statement reporting were assessed using automated searches. Publication characteristics included the number of authors, journal impact factor (JIF), and medical discipline. The annual number of published RCTs substantially increased over 4 decades, accompanied by increases in authors (5.2 to 7.8) and institutions (2.9 to 4.8). The risk of bias remained present in most RCTs but decreased over time for allocation concealment (63% to 51%), random sequence generation (57% to 36%), and blinding of outcome assessment (58% to 52%). Trial registration (37% to 47%) and the use of the CONSORT Statement (1% to 20%) also rapidly increased. In journals with a higher impact factor (>10), the risk of bias was consistently lower with higher levels of RCT registration and the use of the CONSORT Statement. Automated risk-of-bias predictions had accuracies above 70% for allocation concealment (70.7%), random sequence generation (72.1%), and blinding of patients/personnel (79.8%), but not for blinding of outcome assessment (62.7%). In conclusion, the likelihood of bias in RCTs has generally decreased over the last decades. This optimistic trend may be driven by increased knowledge augmented by mandatory trial registration and more stringent reporting guidelines and journal requirements. Nevertheless, relatively high probabilities of bias remain, particularly in journals with lower impact factors. This emphasizes that further improvement of RCT registration, conduct, and reporting is still urgently needed.

A Bibliometric Network Analysis of Coronavirus during the First Eight Months of COVID-19 in 2020.

The COVID-19 pandemic has affected all aspects of society. Researchers worldwide have been working to provide new solutions to and better understanding of this coronavirus. In this research, our goal was to perform a Bibliometric Network Analysis (BNA) to investigate the strategic themes, thematic evolution structure and trends of coronavirus during the first eight months of COVID-19 in the Web of Science (WoS) database in 2020. To do this, 14,802 articles were analyzed, with the support of the SciMAT software. This analysis highlights 24 themes, of which 11 of the more important ones were discussed in-depth. The thematic evolution structure shows how the themes are evolving over time, and the most developed and future trends of coronavirus with focus on COVID-19 were visually depicted. The results of the strategic diagram highlight 'CHLOROQUINE', 'ANXIETY', 'PREGNANCY' and 'ACUTE-RESPIRATORY-SYNDROME', among others, as the clusters with the highest number of associated citations. The thematic evolution. structure presented two thematic areas: "Damage prevention and containment of COVID-19" and "Comorbidities and diseases caused by COVID-19", which provides new perspectives and futures trends of the field. These results will form the basis for future research and guide decision-making in coronavirus focused on COVID-19 research and treatments.

Vitamina D, más allá de la homeostasis cálcica / Vitamin D beyond Calcium Homeostasis

RESUMEN Introducción: La vitamina D, considerada más que una vitamina, una prohormona, se le atribuye múltiples e importantes funciones que van más allá de la homeostasis cálcica. El creciente interés por la vitamina D está relacionado con el descubrimiento de sus receptores y de la expresión de la enzima 1α-hidroxilasa en diferentes tejidos del organismo. Esto ha generado la descripción de un gran número de efectos de la vitamina D en diferentes tejidos y en diversos procesos fisiológicos como: actividad antitumoral, reparación del ácido desoxirribonucleico (DNA), control de la apoptosis, estrés oxidativo, inmunomodulación, adhesión celular y metabolismo y otras funciones aún por esclarecer, y aunque los estudios no son concluyentes, los mismos proponen una relación entre niveles bajos de la vitamina y algunas enfermedades crónicas, autoinmunes y oncológicas. Objetivo: El propósito del presente artículo es describir las funciones extraesqueléticas de la vitamina D y su relación con algunas enfermedades a partir de información actualizada. Método: Se utilizó como buscador de información científica el Google Académico. Se revisaron 101 artículos provenientes de diferentes bases de datos: PubMed, SciELO y páginas web en general; de los cuales fueron referenciados 74 documentos. Conclusiones: Existe evidencia del efecto extraóseo de la hormona vitamina D, así como de la influencia biológica desfavorable de sus bajos niveles, sin embargo, no existe consenso relativo al efecto beneficioso de la suplementación con esta hormona(AU)

ABSTRACT Introduction: Vitamin D, considered, more than a vitamin, a prohormone, is attributed multiple and important functions beyond calcium homeostasis. The growing interest in vitamin D is related to the discovery of its receptors and the expression of the 1α-hydroxylase enzyme in different body tissues. This has generated the description of a large number of effects of vitamin D in different tissues and it involvement in various physiological processes such as antitumor activity, DNA repair, control of apoptosis, oxidative stress, immunomodulation, cell adhesion, and metabolism, as well as other functions still to be clarified; and, although studies are not conclusive, they suggest a relationship between low levels in the vitamin and some chronic, autoimmune and oncological diseases. Objective: The purpose of this article was to describe, based on updated information, the extraskeletal functions of vitamin D and its relationship with some diseases. Methods: Google Scholar was the search engine used to retrieve scientific information. We reviewed 101 articles from different databases, such as PubMed, SciElo, and web pages in general. Out of this number, 74 were chosen as referents. Conclusions: There is evidence about the extra-bone effect of the hormone known as vitamin D, as well as about the unfavorable biological influence of its low levels; however, there is no consensus regarding the beneficial effect of supplementation with this hormone(AU)

Posibilidades y limitaciones de la tele-estomatología / Possibilities and limitations of teledentistry

ABSTRACT Dental care is considered to be an example of complex manual interventions in the medical sector. The vision presented describes the organization of dental care based on the application of modern telecommunication technologies. In developed countries, general dental practitioners have a positive attitude toward incorporating teledentistry into their practice. In PubMed there is a tendency to increase the states by telehealth key words and tags, including teledentistry. Those health care tendencies show a steady trend toward the broadening of teledentistry services(AU)

RESUMEN El cuidado dental se considera un ejemplo de intervenciones manuales complejas en la industria médica. La visión presentada describe la organización de la atención dental basada en la aplicación de las modernas tecnologías de telecomunicación. En los países avanzados, los odontólogos generales tienen una actitud positiva ante la idea de introducir la teledentistería en su práctica. En PubMed hay una tendencia a aumentar los estados por las palabras clave y las etiquetas de la telesalud, incluida la teledentistería. Esas tendencias en materia de atención de la salud muestran una tendencia constante a la ampliación de los servicios de teledentistería(AU)

Bibliometría o altimetría: desde las métricas tradicionales a las actuales. Revisión bibliográfica / Bibliometry or altimetry: from traditional metrics to present. A review

Introducción:La forma en la que se mide la difusión de la información en la comunidad científica ha sufrido cambios en la última década. Objetivo:Esta revisión tiene como objetivo contextualizar al lector sobre las diferentes formas de medir el impacto de un artículo, tomando en cuenta el "sistema de medición tradicional" y el de "métricas alternativas". Metodología de búsqueda:Se realizó una búsqueda en las bases de datos "PubMed/MEDLINE", "Dialnet", "Scielo" y "ScienceDirect", utilizando las palabras clave: Bibliometría, alt métricas, métricas alternativas y factor de impacto. Conclusiones:El "sistema de medición tradicional", basado en el factor de impacto y que se apoya esencialmente en la opinión de expertos, con el fin asegurar la calidad de las investigaciones, es una herramienta aún vigente que en conjunto con las métricas alternativas o altmétricas, favorecen la difusión del conocimiento, sin que necesariamente midan de manera precisa la calidad del artículo y su impacto...(AU)

Translating the Cochrane EMBASE RCT filter from the Ovid interface to Embase.com: a case study.

BACKGROUND: Information specialists frequently translate search filters from one interface to another. Publications advise that translation can be complex and should be undertaken carefully. OBJECTIVES: To investigate the issues arising when translating the Cochrane Embase RCT search filter from one interface (Ovid) to another (Embase.com). METHODS: We drafted a translation of the Cochrane Ovid RCT filter to run in Embase.com. We compared the line-by-line results of the Ovid filter with the results of the translation. We revised the filter. We identified differences between database versions including records with different publication years and subject headings. Some records were in Embase in one interface but not in the other. We encountered expected interface differences relating to proximity operators. We also encountered unexpected interface issues around truncation and the use of the original title or original abstract field. DISCUSSION: Filter conversion is challenging and time consuming revealing unexpected differences in interfaces and databases. Careful planning can pre-empt some issues, but others may only emerge during testing. We identified interface anomalies that have led database publishers to review aspects of the way their interfaces work. CONCLUSIONS: Translators should be vigilant for known and unknown differences in both interfaces and database versions.

Fundamentos históricos del diagnóstico y tratamiento de las hernias inguinales / Historical Foundations of Diagnosis and Treatment of Inguinal Hernias

RESUMEN Introducción: Es necesario conocer la historia de la cirugía, en general, y de la herniología, en particular, para poder comprender mejor los enormes avances experimentados en esas disciplinas. Muchas de las técnicas quirúrgicas modernas están basadas en los conocimientos y experiencias aportados por los primeros cirujanos, pero no fue hasta la divulgación de la obra del francés Eduardo Bassini, en 1889, que comenzó el impetuoso desarrollo de la cirugía de la hernia inguinal a escala mundial. Entre las más notables reparaciones de hernia inguinal, además de la de Bassini, se citan las de McVay, Halsted, Shouldice y la hernioplastia libre de tensión, popularizada por Lichtenstein. Objetivo: Profundizar en los aspectos cognoscitivos relacionados con los fundamentos históricos del diagnóstico y tratamiento de la hernia inguinal, su evolución y aplicación en la cirugía actual. Método: Revisión bibliográfica digital de publicaciones actualizadas en las bases de datos SciELO, Latindex, Elsevier, PubMed, Medline y Web of Science y Google Académico. Conclusiones: La cirugía de las hernias en general, y de las inguinales, en particular, nunca es rutina; debe ser individualizada a las características de cada enfermo y a los recursos disponibles. El futuro de la cirugía herniaria solo puede entenderse ligado al conocimiento de sus fundamentos históricos, del profundo dominio de la anatomía topográfica y de una esmerada técnica quirúrgica(AU)

ABSTRACT Introduction: It is necessary to know the history of surgery, in general, and herniology, in particular, in order to understand better the enormous advances experienced in these disciplines. Many of the modern surgical techniques are based on the knowledge and experiences contributed by the first surgeons, but it was not until the disclosure of the work of the French Eduardo Bassini, in 1889, that the impetuous development of inguinal hernia surgery began to scale worldwide. Among the most notable inguinal hernia repairs, in addition to that of Bassini, are those of McVay, Halsted, Shouldice and tension-free hernioplasty, popularized by Lichtenstein. Objective: To deepen the cognitive aspects related to the historical foundations of the diagnosis and treatment of inguinal hernia, its evolution and application in current surgery. Method: Digital bibliographic review of publications updated in the databases SciELO, Latindex, Elsevier, PubMed, Medline and Web of Science and Google Scholar. Conclusions: Surgery for hernias in general, and particularly for inguinal hernias is never routine. They must be individualized to the characteristics of each patient and the resources available. The future of hernia surgery can only be understood if it is associated with the knowledge of its historical foundations, the deep mastery of topographic anatomy and a careful surgical technique(AU)

Developing a Cancer-Focused Library Survey - Assessing the Current Environment and Planning for the Future.

The primary goal of this project is to understand how each National Cancer Institute-designated cancer center library, and all libraries that support cancer research, function within their institutions. Through an in-depth survey focused on three major areas (staff, content and tools procurement, and user services), the research team hopes to determine how a cancer-centric library can be successful in supporting quality patient care, research excellence, and education. Additionally, the survey will examine the necessary minimum staffing levels for librarians and information professionals based on organizational size and degree of research focus. The survey will seek out the new skills librarians will need to deliver optimal services. The survey will also explore how content libraries purchase reflects and maps to constituents' current medical and research activities. Libraries within a research intense environment have a responsibility to align with researchers and health care professionals to provide resources and services that support their workflows. Cancer libraries need to be attuned to their institutions' missions, whether that includes excellent patient care, research endeavors, or cutting-edge educational programs. The information gathered from the survey will provide data for this research team to define the vision and standards of excellence for a cancer specialized research library.

Worldwide tendency and focused research in forensic anthropology: A bibliometric analysis of decade (2008-2017).

PURPOSE: The objective of this study was to illustrate the global research productivity and tendency of forensic anthropology in recent ten years (2008-2017) by bibliometric analysis. METHODS: "Forensic anthropology" was used as the Medical Subject Headings term and topic in PubMed and Web of Science Core Collection. RESULTS: As 5130 articles retrieved, two independent investigators evaluated all of them respectively. After restricting the published year, excluding duplicated and irrelevant articles, 1663 articles were available. The total of 219 countries and regions contributed to this research and the United States was the most productive country. There were 201 peer-reviewed journals including all of articles and two of them were identified as core journals according to Bradford's law. Eight of the top 10 productive authors were from developed countries. The top 10 cited articles were published by authors from developed countries with half in the United States. Sex estimation and age estimation were the most popular topics. CONCLUSIONS: With the basic and recognized methodology administered in this study, it provided a relative broad view to evaluate the scientific research capacity of forensic anthropology and reveal the worldwide tendency in this field.

Multispecialty involvement in the management of type B aortic dissections in the endovascular era-Implications for training cardiothoracic residents.

PURPOSE: Involvement of qualified specialists with proficiency in endovascular therapies has created flux regarding the role of cardiothoracic surgeons, vascular surgeons, and other catheter-skilled specialists in the management of type B aortic dissections. We used manuscript authorship trends and recent match data in order to study how multi-specialty involvement in treating aortic dissections has changed in the endovascular era. METHODS: A PubMed review of published literature between 1998 and 2015 was performed with "aortic dissection" in the title. Case studies and entries with incomplete author or identifying information were excluded. Author number, specialty affiliation, and treatment focus were recorded. Available residency match data were obtained from the National Resident Matching Program (NRMP). RESULTS: Cardiothoracic surgeons represented 38.5% (10/23) of the authors for papers with an endovascular focus in 1998 compared with 27.7% (59/213) in 2015. Vascular surgeons represented 19.2% (5/23) and 37.1% (79/213) of authors in 1998 and 2015, respectively. Radiologists accounted for 30.4% (7/23) of authorship in 1998 and 8.9% (19/213) in 2015. NRMP match data revealed a 10.6% decrease in thoracic surgery matches from 2004 to 2015, while vascular surgery and interventional radiology increased by 74.7% and 191.1%, respectively. CONCLUSIONS: Endovascular technologies have resulted in significant changes as to which specialties manage complicated type B aortic dissections. Vascular surgeons, with both open and extensive endovascular training are optimally positioned to assume a major role in the care of aortic dissection patients. Continued emphasis on endovascular training and multispecialty collaboration is essential for cardiothoracic surgeons in the endovascular era.

Analysis of Production, Impact, and Scientific Collaboration on Difficult Airway Through the Web of Science and Scopus (1981-2013).

BACKGROUND: Bibliometrics, the statistical analysis of written publications, is an increasingly popular approach to the assessment of scientific activity. Bibliometrics allows researchers to assess the impact of a field, or research area, and has been used to make decisions regarding research funding. Through bibliometric analysis, we hypothesized that a bibliometric analysis of difficult airway research would demonstrate a growth in authors and articles over time. METHODS: Using the Web of Science (WoS) and Scopus databases, we conducted a search of published manuscripts on the difficult airway from January 1981 to December 2013. After removal of duplicates, we identified 2412 articles. We then analyzed the articles as a group to assess indicators of productivity, collaboration, and impact over this time period. RESULTS: We found an increase in productivity over the study period, with 37 manuscripts published between 1981 and 1990, and 1268 between 2001 and 2010 (P < .001). The difficult airway papers growth rate was bigger than that of anesthesiology research in general, with CAGR (cumulative average growth rate) since 1999 for difficult airway >9% for both WoS and Scopus, and CAGR for anesthesiology as a whole =0.64% in WoS, and =3.30% in Scopus. Furthermore, we found a positive correlation between the number of papers published per author and the number of coauthored manuscripts (P < .001). We also found an increase in the number of coauthored manuscripts, in international cooperation between institutions, and in the number of citations for each manuscript. For any author, we also identified a positive relationship between the number of citations per manuscript and the number of papers published (P < .001). CONCLUSIONS: We found a greater increase over time in the number of difficult airway manuscripts than for anesthesiology research overall. We found that collaboration between authors increases their impact, and that an increase in collaboration increases citation rates. Publishing in English and in certain journals, and collaborating with certain authors and institutions, increases the visibility of manuscripts published on this subject.

[Bibliometric analysis of Revista Médica del IMSS in the Scopus database for the period between 2005-2013]. / Análisis bibliométrico de la Revista Médica del IMSS en la base de datos Scopus durante el periodo 2005-2013.

OBJECTIVE: To analyze the number of articles of Revista Médica del Instituto Mexicano del Seguro Social (Rev Med Inst Mex Seguro Soc) in the Scopus database and describe principal quantitative bibliometric indicators of scientific publications during the period between 2005 to 2013. METHODS: Scopus database was used limited to the period between 2005 to 2013. The analysis cover mainly title of articles with the title of Revista Médica del Instituto Mexicano del Seguro Social and its possible modifications. For the analysis, Scopus, Excel and Access were used. RESULTS: 864 articles were published during the period between 2005 to 2013 in the Scopus database. We identified authors with the highest number of contributions including articles with the highest citation rate and forms of documents cited. We also divided articles by subjects, types of documents and other bibliometric indicators which characterize the publications. CONCLUSIONS: The use of Scopus brings the possibility of analyze with an external tool the visibility of the scientific production published in the Revista Médica del IMSS. The use of this database also contributes to identify the state of science in México, as well as in the developing countries.

Objetivo: analizar la visibilidad de la Revista Médica del Instituto Mexicano del Seguro Social (Rev Med Inst Mex Seguro Soc) en la base de datos Scopus y describir los principales indicadores bibliométricos cuantitativos de la producción científica publicados durante el periodo 2005-2013. Métodos: para el análisis se utilizó la base de datos Scopus y se limitó el periodo de búsqueda a los años 2005-2013. La estrategia de búsqueda se ejecutó en los campos específicos de Título de la Publicación (Source Title) con el término Revista Médica del Instituto Mexicano del Seguro Social y sus posibles variantes, asícomo el número ISSN de la revista. Para el análisis de los datos obtenidos se utilizaron las herramientas de Scopus y los programas Excel y Access. Resultados: se encontraron 864 trabajos publicados durante el periodo 2005-2013 que fueron incluidos en Scopus. Se identificaron los autores con mayor producción científica y mayor número de citas acumuladas a sus trabajos, asícomo las principales revistas que citan a la Rev Med Inst Mex Seguro Soc. Se describen las principales áreas temáticas, tipos de documentos y otros indicadores bibliométricos que caracterizan a la publicación. Conclusiones: el uso de Scopus brinda la posibilidad de analizar con una herramienta externa al IMSS la visibilidad de la producción científica publicada en la Revista Médica del IMSS, además de que contribuye a identificar el estado de la ciencia en México y de los países en vías desarrollo.

Curare--a curative poison: a scientometric analysis.

INTRODUCTION: Curare is one of the best-examined neurotoxins of the world, which has empirically been used for centuries by American Indigenes. Research on curare has been performed much later, a global scientometric analysis on curare research or its derivates does not yet exist. This bibliometric analysis is part of the global NewQis-project and should illuminate both toxic and historic issues of research on curare. METHODS: The ISI Web of Science was searched for data covering 1900 to 2013 using a term which included as many original articles on curare as possible. 3,867 articles were found and analyzed for common bibliometric items such as the number of citations, language of the articles or the (modified) Hirsch-Index (h-index). Results are illustrated utilizing modern density equalizing map projections (DEMP) or beam diagrams. RESULTS: Most publications were located in North America and Europe. The USA has the highest number of publications as well as the highest h-index. The number of publications overall rose until the late 1990s and later decreased. Furthermore, sudden increases of research activity are ascribable to historic events, like the first use of curare as muscle relaxant during surgery. DISCUSSION: This scientometric analysis of curare research reflects several tendencies as previously seen in other bibliometric investigations, i.e. the scientific quality standard of North America and Europe. Research on curare decreased however, due to the declining attention towards this muscle relaxant. This work exemplifies also how scientometric methods can be used to illuminate historic circumstances immediately stimulating scientific research.