Universidad De Research Articles

Conjunctival ultraviolet autofluorescence as a biomarker of outdoor time in myopic children

IntroductionThe prevalence of myopia has increased significantly in recent years including an earlier onset of myopia development on the pediatric population. The main objective of the study is to compare CUVAF (Conjunctival Ultraviolet Autofluorescence) in children with and without myopia to validate its usefulness as an outdoor protective biomarker.MethodsA case–control observational study was conducted in a child cohort from subjects that attended to the Ophthalmology Department of Clínica Universidad de Navarra for an ophthalmological examination. The general exclusion criteria were (among others): amblyopia, congenital myopia, general ophthalmic disease, and any conjunctival alteration that might difficult the measurement of the CUVAF area. All participants underwent an automatic objective refraction under cycloplegic effect, biometry to measure axial length (AL) and central corneal radius (CCR), and completed a questionnaire about their lifestyle habits. A total of 4 images of the bulbar conjunctiva were taken with blue light in order to quantify the CUVAF area.ResultsA total of 263 subjects (6 to 17 years old) were analyzed with no significant differences in demographic data between case group and control group. There were 50 non-myopic subjects (19%) and 213 myopic subjects (81%). In relation to the outdoor activities (OA), myopic subjects spent significantly fewer hours per week outdoors than the control-group (p = 0.03). About the CUVAF area, the differences between groups were statistically significant, showing that the myopic group has a significantly smaller CUVAF area than the control-group (0.33 ± 0.72 mm2 vs. 0.78 ± 1.22 mm2; p = 0.0023), likewise, the frequency of CUVAF area absence between both groups showed an odds ratio (OR) of 2.52 (CI95% 1.33–4.74). A Pearson correlation test was done, obtaining a strong significant inverse correlation between myopia degree-CUVAF area (r = 0.1877; IC95% 0.068–0.302), and also ratio (AL/CCR)-CUVAF area (p = 0.002 and p = 0.04) respectively.ConclusionCUVAF is a useful biomarker for OA and it has an inverse relationship with myopia degree also in pediatric age, especially after the age of 12, so it could be useful to differentiate the risk of developing myopia. Having a CUVAF area greater than that corresponding to age, protect to myopia 2.5 times, being almost 5 times the protection in case of high myopia.

Germination Strategies and Seed Quality of Colobanthus quitensis: Implications for Sustainable Antarctic Ecosystems and Ex Situ Plant Conservation

The conservation of the Antarctic ecosystem is linked to scientific and tourism activities. The Colección Activa de Plantas Vasculares Antárticas at the Universidad de Concepción aims to help conserve the region’s vascular flora to support scientific research while minimizing anthropogenic pressure on natural ecosystems. Colobanthus quitensis is the only native dicotyledonous plant native to Antarctica and, as an extremophilic plant, is capable of withstanding extreme abiotic conditions. This species has potentially important use as a biological model to study the physiological deterioration of dormant seeds and other traits, some of which may contribute to vegetation development in Antarctica. Although studies have addressed the reproduction and germination of C. quitensis, there is no recent synthesis of information regarding its reproductive biology and seed traits that could support its conservation. This work synthesizes and critically analyzes the current knowledge of C. quitensis reproduction in natural and controlled environments, identifying factors that contribute to the decline in seed quality. We propose that growth conditions, seed morphology, and interactions with endophytic fungi influence germination and seedling establishment. We also highlight critical knowledge gaps that must be addressed to better understand the species’ phenology, the impact of biotic and abiotic factors on its development, strategies for seed conservation, and biotechnological applications.

Green Entrepreneurship for Sustainability Business: A Bibliometric Analysis

Objective: The purpose of this research is to identify important topics, trends, and significant contributions in the field of green entrepreneurship research for sustainable business practices. Theoretical Framework: As a sustainable company model, green entrepreneurship is well-positioned to tackle environmental issues and promote economic stability. The analysis makes use of ideas of entrepreneurship, innovation, and sustainability to shed light on how green business models support both social and financial goals, sustainable development goals. Method: Bibliometric data from the Scopus database covering the years 2002–2024 were used in the analysis. VOSviewer and Biblioshiny in R Studio were used to examine 341 data to map the intellectual structure of green entrepreneurship. The analysis focused on authorship, citation patterns, and keyword co-occurrences. Results and Discussion: The results show a significant rise in publications about green entrepreneurship after 2020, which is consistent with the growing interest in sustainable practices and climate action around the world. Economic impact, educational policy, climate change, and green technology were among the six topic clusters that surfaced. The study demonstrates a spatial and institutional concentration of knowledge production by highlighting contributions from nations like the USA, UK, and China as well as organizations like Universidad de Lima. Research Implications: The study indicates that the sector may grow if digital innovation and green entrepreneurship are combined, and if SME engagement is increased. For business strategy to incorporate sustainability, policy assistance in the form of partnerships and incentives is essential. Originality/Value: This study offers a thorough analysis of the development and importance of green entrepreneurship, establishing it as a major force behind the global sustainability agenda. It provides important insights into environmental stewardship and sustainable development by pointing up research gaps and future initiatives.

Comparative Physiological Impact of Television Viewing and Video Gaming in Young Adults: Cardiopulmonary and Metabolic Responses

IntroductionThis study examines cardiopulmonary and metabolic responses in young adults during two sedentary activities: watching television and playing seated video games. Sedentary behavior (SB), defined as activities with ≤1.5 METs performed while seated, is associated with increased cardiovascular risks and mortality. While television viewing correlates with adverse health outcomes, video gaming in adolescence is linked to fewer cardiovascular risks. However, their impacts on young adults remain unclear. MethodsTwelve male kinesiology students (mean age: 22.6 ± 2.1 years) from the Universidad de Santiago de Chile participated in a cross-sectional study. Two 80-minute sessions—television viewing and video gaming—were structured into Pre-Activity (10 min), Activity (60 min), and Post-Activity (10 min) phases. Oxygen consumption (VO₂), carbon dioxide production (VCO₂), heart rate (HR), and breathing parameters were measured. Energy expenditure (EE) and metabolic equivalents (METs) were calculated from expired gas samples. ResultsVideo gaming elicited significantly higher HR and breathing rates (p < 0.01), as well as greater VO₂, VCO₂, EE, and METs (p < 0.05) compared to television viewing, indicating higher metabolic and cardiovascular demand. However, the energy expenditure during gaming remained within the sedentary range, failing to exceed basal metabolic rates. ConclusionVideo gaming is more metabolically demanding than television viewing but does not qualify as light physical activity. These findings emphasize the need for public health strategies that differentiate between sedentary behaviors and promote more vigorous activities to mitigate sedentary lifestyle risks.

SECOND SOUTHERN SCIENCE CONFERENCE: HEALTH SESSIONS

The Second Southern Science Conference brought together international researchers focused on health and diseases. The event featured expert lectures across various fields, including cell biology, neurobiology, immunology, and pharmacology. Notable presentations covered new tools for cell biology research, such as the RUSH and RUCH systems, which enable studying protein trafficking in cells. In microbiology, key topics included antibiotic resistance and bacterial and viral infections. In neurobiology, researchers presented advances in treating neurodegenerative diseases, including the use of nanoparticles for drug delivery. The conference also addressed immunology issues, such as COVID-19 vaccination effects, and aspects of diet in cell physiology. The event concluded with a lecture on academic entrepreneurship, demonstrating how research can be transformed into commercial products. The conference, hosted at the Universidad de Mendoza, provided a unique opportunity for sharing scientific knowledge and advances in healthcare, with the next edition scheduled for 2026.

Pre-Pregnancy Provegetarian Food Pattern and the Risk of Developing Gestational Diabetes Mellitus: The Seguimiento Universidad de Navarra (SUN) Cohort Study.

Background and Objectives: Gestational diabetes mellitus (GDM) is one of the most common medical conditions in pregnancy, with adverse effects on maternal and neonatal outcomes. Evidence suggests a beneficial effect of plant-based dietary patterns, rich in foods derived from plant sources and low in animal foods, on type 2 diabetes; however, their effects on GDM remain unclear. We aimed to investigate the association between pre-pregnancy provegetarian food patterns and the incidence of GDM in a Spanish cohort. Materials and Methods: This subsample of the Seguimiento Universidad de Navarra (SUN) cohort analyzed 3589 Spanish university graduate pregnant women with a mean (standard deviation) age of 28 (±4.3) who were initially free of pre-existing diabetes at baseline. Dietary food consumption was evaluated through a validated, 136-item semi-quantitative food frequency questionnaire. The pre-pregnancy provegetarian food pattern was obtained by assigning positive scores to plant-based food groups and reverse scores to animal food groups. Energy-adjusted quintiles were applied to allocate points to construct the provegetarian food pattern, ranging from 12 to 60 points. Logistic regression models were performed to estimate the odds ratios (OR) of GDM across quintiles of a pre-pregnancy provegetarian food pattern, using the lowest quintile as the reference category. Results: We identified 178 incidence cases of GDM. Women in the highest quintile (Q5) of provegetarian food pattern before pregnancy exhibited a 42% relative reduction in the odds of GDM [adjusted OR (95% CI) Q5 vs. Q1: 0.58 (0.35, 0.97); p-trend = 0.109]. Higher consumption of meat and dairy before pregnancy was associated with a significantly increased risk of GDM [adjusted OR (95% CI) Q5 vs. Q1: 1.94 (1.19, 3.16); p-trend = 0.005] and [adjusted OR (95% CI) Q5 vs. Q1: 1.77 (1.07, 2.94); p-trend = 0.082], respectively. Conclusions: Higher pre-pregnancy consumption of a provegetarian food pattern was associated with a lower risk of developing GDM in Spanish women. Further studies are needed to confirm these findings.

Comprehensive Management of Water Resources: A Step-By-Step Path Towards a Sustainable Campus At The U.D.C.A (Bogotá, Colombia)

Universities are recognized as essential agent of change since future decision-makers related to sustainability are going and will pass through their classrooms. This circumstance becomes an excellent opportunity to demonstrate, with example, and instill in the students how these types of organizations control and approach implementing practices that guarantee sustainability and the appropriate use of resources over time. The Universidad de Ciencias Aplicadas y Ambientales has undertaken different actions related to the Integrated Water Resources Management (IWRM) on campus since 1990. This work focuses on the actions carried out by the Integrated Environmental Management System (latest institutional management model) between the 2014-2016 period to improve the university campus's IWRM (drinking water and wastewater management) from a systemic point of view. The actions implemented were part of the project: Reusing treated water at the University's Wastewater Treatment Plant (WWTP). This project included the following objectives: 1) Reduce the volume and economic costs of sludge water disposal; 2) Reduce drinking water consumption; and 3) Promote environmental education about water resources in students of the different programs of the University. The results were: 1) A decrease of 68.3% in volume and 69.5% in costs of sludge water disposal; 2) A 41.2% saving in drinking water consumption; and 3) 2,475 members of the university community impacted by issues related to the management of water resources.

Trends in the Use of Artificial Intelligence in Science Education: Bibliometric &amp; Biblioshiny Analysis (1975-2024)

This research was conducted to look at research trends in the Scopus database regarding the study of Artificial Intelligence in Science Education. Using the PRISMA method, researchers selected and determined 146 documents that were ready to be analyzed using bibliometric and biblioshiny methods with the help of the R program and Vosviewer. From the results of the analysis carried out, it was concluded that research on Artificial Intelligence in Science Education in the Scopus Database started from 1975 to 2024, with an 8-fold increase in the number of publications, and 13 times the number of citations in the last 7 years. China was the country with the highest contribution to this research, showing 17(11.64%) publications and 418(13.65%) citations. "BMC Medical Education" is the most productive source with an h-index of 4. Jose Carpio Cañada from Universidad de Huelva in Spain is the most productive author with an h-index of 2. Y. K. Dwivedi et al., (2021) with 1159(37.85%) citations is the source with highest citation. There are 58 keywords divided into 9 clusters, with the keywords "Digital Technologies", "ChatGPT", and "Systems Thinking" being the main recommendations in the field of artificial intelligence in science education

The U.D.C.A. on the Road to Environmental Sustainability in Its Infrastructure and Environment

The Universidad de Ciencias Aplicadas y Ambientales U.D.C.A. has been walking a path from Sustainable Development to Environmental Sustainability, which is evidenced through initiatives in infrastructure and its environment, according to the Institutional Educational Project, which recognizes the Campus as a Living Classroom. In this opportunity, the process that is being advanced in terms of infrastructure and environmental management with three initiatives will be presented: 1. The U.D.C.A. environmental memory trail, an ecological trail under construction, which allowed articulating teaching, research, and social projection from a research seedbed of Environmental History, which collects environmental information related to biological, ecological and cultural aspects of the species of fauna and flora that are present on Campus. 2. The Tingua Refuge, an emblematic site of the UniversityUniversity recognized for its conservation of wild species such as Tinguas and ducks, where classroom projects are being developed with students of the Environmental Analysis Technology program to measure the quality of the water as a first step for its ecological restoration process, to turn it into a bio-indicator of environmental health for the UniversityUniversity. 3. The development of infrastructure as an axis of change toward the environmental sustainability of the University is part of the University's Infrastructure Master Plan, which defines the conditions under which the U.D.C.A. advances the necessary actions in environmental, urban, rural, and architectural aspects to adapt the academic spaces.

Iconografía precolombina en el arte urbano y el grafiti en Bogotá. Un acercamiento a la prácticade pintura mural precolombina en espaciosconvencionales y no convencionales

The past, far from being a remote time framed in remi-niscence and faint imagery, is latent and susceptible to change. The main objective of this paper was to applymethodologies provided by fields of knowledge such asethnography, sociology, and art history, in order to capture and delve into the presence of pre-Columbian iconography in urban art and graffiti in the city of Bogotá, in both conventional and unconventional spaces; taking an epistemological approach to the practice of mural painting with allusions to pre-Columbian elements. In this way, through urban drifts, iconographic and iconological visual analysis, mapping, and qualitative interviews, we examined over twenty mural paintings, from which theoretical approaches were derived in relation to the use of public space, on the one hand, and the use of symbols, on the other. The conclusion reached is that artistic interventions, by participating in the construction and reconstruction of the social fabric, allow us to understand space as a volatile phenomenon; likewise, in the exercise of reflecting on the presence of art in the city, it is critical to pay attention to the conditions of production under which a piece is made, insofar as images have historically been powerful semantic toolsthat embody a purpose. Finally, the paper is an argument in favor of observation as a space of learning. The present reflections were part of a research process developed for the class “Uses of the past in the present: The Iconography of Antiquity in the Contemporary Culture”, at the Universidad de los Andes, first semester of 2023.

Internationalisation for higher education: International coordinators’ perspectives on challenges and virtual exchange

International outlook constitutes, together with teaching, research, and knowledge transfer, one of the university core missions. Spain remains as a preferred destination for outbound mobilities, which constitutes an opportunity in terms of international rankings. Vice-Rectorates are designing strategies to retain this flow of international students, as well as to promote outbound mobilities. The present piece of research is a qualitative study based on Deyo’s Qualitative Social Constructionist Inquiry (2018), a semi-structured interview. Such design was supervised by experts and approved by the Ethics Committee of Social Studies. Results address the viewpoints of 17 international coordinators of the Universidad de Castilla-La Mancha, based on four different campuses. The sample was made in terms of convenience, as it is the authors’ institution. Questions concentrate on coordinators’ understanding of the goals and needs of study abroad programmes, together with the needs of international students, their main challenges, and the role of the three communicative subcompetences of the Common European Framework of Reference for Languages on these programmes, and more specifically their connection with the Theory of Identity Development (Chickering and Reisser, 1993), to help determine the strengths and weaknesses of such mobilities. Results reveal important information in relation to both the role of international coordinator and the effects these exchanges have on the students. Considering the former aspect, the answers evinced that this job post requires more attention in terms of training, tasks specification, recognition, and assistance. Regarding the latter, the responses highlight multiple benefits derived from these exchanges; in particular, the development of personal and social abilities to be more independent to solve problems, to collaborate with other people from different backgrounds, to communicate in a foreign language, and to expand their worldview. Nonetheless, the answers also show that this experience could be further enriched by academic, social, and emotional support for the students. In this line, the study suggests a set of recommendations and seeks for alternative instances to reach the goals of international exchange, such as excellence, equity, or education innovation (European Commission, 2021) by means of virtual exchange in COIL programmes such as eTwinning.

Integrating mathematical modeling into synthetic biology education: a comprehensive approach through webinars and syllabus development

Mathematical modeling is a fundamental aspect of synthetic biology, enabling precise design and analysis of biological systems. To enhance students' understanding of this critical topic, we developed a series of webinars aimed at teaching mathematical modeling to iGEM teams. These webinars were initially created to maintain student engagement during a period of restricted lab access but quickly demonstrated their value as an effective educational tool. The success of these webinars highlighted the suitability of mathematical modeling as a topic well-suited to both onsite and online learning environments. Recognizing this, we expanded the content into a comprehensive syllabus for undergraduate courses in synthetic biology at the Universitat Politècnica de Valencia in Spain and Universidad de las Fuerzas Armadas—ESPE in Ecuador. The course now serves as a core component of synthetic biology education, offering students a robust framework for understanding and applying mathematical models. It includes a series of lectures, practical exercises, and case studies, all designed to deepen students' knowledge and skills in this essential area. To support educators and students, we have also developed a deck of slides and example scripts that provide practical examples and reinforce the concepts taught in the course. This manuscript presents the development, implementation, and impact of these educational initiatives, demonstrating how mathematical modeling can be effectively integrated into synthetic biology curricula to prepare students for real-world challenges in the field.

ECR Spotlight – Miguel López-Unzu

ECR Spotlight is a series of interviews with early-career authors from a selection of papers published in Journal of Experimental Biology and aims to promote not only the diversity of early-career researchers (ECRs) working in experimental biology but also the huge variety of animals and physiological systems that are essential for the ‘comparative’ approach. Miguel López-Unzu is an author on ‘ The myoarchitecture of the vertebrate cardiac ventricles: evolution and classification’, published in JEB. Miguel conducted the research described in this article while a Postdoctoral Researcher in Prof. Ana Carmen Durán and Prof. Borja Fernández's lab at Universidad de Málaga, Spain. Miguel is now a Postdoctoral Researcher in the lab of Prof. Jorge Alegre-Cebollada at Centro Nacional de Investigaciones Cardiovasculares, Spain, investigating the heart muscle, the myocardium, in order to help improve cardiovascular health.

Systematic Analysis of Institutional Internationalization and Research Policies of Prioritized Institutions of The RCI (Colombian Network to Internationalize Higher Education)

The internationalization of research is the process that allows the execution of research actions in cooperation, linkage and integration among higher education institutions, IES, which also responds to the needs of social reality. Therefore, the objective of this study was to analyze the institutional policies of internationalization and research of priority institutions of the Colombian Network for the Internationalization of Higher Education (RCI). The methodology of the study was qualitative, case study and documentary type, since higher education institutions such as Universidad de la Guajira, Universidad de la Costa CUC and ITSA University were taken and a documentary analysis was made of their internationalization policies where developed internationalization strategies and comparative and prospective analysis were identified with the support of MAXQDA software, with which categories were identified and represented graphically, The results revealed categories of analysis of the internationalization and research policy such as visibility, promotion strategies, mobility, talent attraction, training, dissemination, resources and incentives. In conclusion, the current dynamics demands collaboration and joint work among nations, even more so in the post-pandemic context, and the internationalization of research is conceived as a strategy inherent to higher education institutions, which enriches scientific production through the exchange and transfer of knowledge and good practices.

Burden of postmenopausal breast cancer attributable to excess body weight: comparative study of body mass index and CUN-BAE in MCC-Spain study

Background10% of postmenopausal breast cancer cases are attributed to a high body mass index (BMI). BMI underestimates body fat, particularly in older women, and therefore the cancer burden attributable to...

Building noise maps in Uruguay: a practical methodology

Uruguay is a small country in Latin America, with around 3400000 inhabitants. Its environmental legislation is still incomplete; for example, there is no national regulation on noise but only departmental Ordinances in each of its 19 Departments. Although it is well-known that they are very good management tools, noise maps are not mandatory in Uruguay. The Research Group on Environmental Noise at Universidad de la República has developed a research project that seeks the best practical methodology to build noise maps through manual measurements. The field work included the determination of the stabilization time of noise measurements, the comparison between long- and short-time measurements, the comparison between measurements taken at 1,20 m and 3,50 m, and the obtention of a national curve of highly annoyed people (%HA) with basis in the field measurements and simultaneous survey carried out on site. In this paper we present the results of these works and the proposed methodology for building noise maps throughout the country.

Agreement between equation-derived body fat estimator and bioelectrical impedance analysis for body fat measurement in middle-aged southern Indians.

Excess body fat (BF) contributes to metabolic syndrome (MetS). The Clínica Universidad de Navarra-Body Adiposity Estimator (CUN-BAE) is an equation-derived body fat estimator proposed to assess BF. However, its efficiency compared to the standard method is unknown. We aimed to compare the efficacy of CUN-BAE with the standard method in estimating BF in southern Indians. We included 351 subjects, with 166 MetS patients and 185 non-MetS subjects. BF was obtained from the standard bioelectrical impedance analysis (BIA) method and measured by CUN-BAE in the same subjects. We compared the efficacy of CUN-BAE in estimating BF with that of BIA via Bland-Altman plots, intraclass correlation coefficients, concordance correlation coefficients and the kappa index. The mean body fat percentage (BF%) values measured by BIA and CUN-BAE in all the subjects were 28.91 ± 8.94 and 29.22 ± 8.63, respectively. We observed significant absolute agreement between CUN-BAE and BIA for BF%. BIA and CUN-BAE showed good reproducibility for BF%. CUN-BAE had accuracy comparable to BIA for detecting MetS using BF%. Our findings indicate that CUN-BAE provides precise BF estimates similar to the BIA method, making it suitable for routine clinical practice when access to BF measurement devices is limited.

First person – Cecilia Alejandra Vazquez

ABSTRACT First Person is a series of interviews with the first authors of a selection of papers published in Journal of Cell Science, helping researchers promote themselves alongside their papers. Cecilia Alejandra Vazquez is first author on ‘ Intracellular lipid droplets are exploited by Junín virus in a nucleoprotein-dependent process’, published in JCS. Cecilia Alejandra is a postdoc in the lab of Dr Sandra M. Cordo and Dr Cybele C. García at Universidad de Buenos Aires Int, Buenos Aires, Argentina, where she is interested in all things regarding the ‘One Health’ concept of optimizing the health of people, animals and ecosystems. In particular, I am passionate about host–pathogen interactions, how they can be affected by the environment and how understanding them can lead to the development of new therapies.

Comparing Optical and Custom IoT Inertial Motion Capture Systems for Manual Material Handling Risk Assessment Using the NIOSH Lifting Index

Assessing musculoskeletal disorders (MSDs) in the workplace is vital for improving worker health and safety, reducing costs, and increasing productivity. Traditional hazard identification methods are often inefficient, particularly in detecting complex risks, which may compromise risk management. This study introduces a semi-automatic platform using two motion capture systems—an optical system (OptiTrack®) and a Bluetooth Low Energy (BLE)-based system with inertial measurement units (IMUs), developed at the Biomedical Engineering Laboratory, Universidad de Concepción, Chile. These systems, tested on 20 participants (10 women and 10 men, aged 30 ± 9 years without MSDs), facilitate risk assessments via the digitized NIOSH Index method. Analysis of ergonomically significant variables (H, V, A, D) and calculation of the RWL and LI showed both systems aligned with expected ergonomic standards, although significant differences were observed in vertical displacement (V), horizontal displacement (H), and trunk rotation (A), indicating areas for improvement, especially for the BLE system. The BLE Inertial MoCap system recorded mean heights of 33.87 cm (SD = 4.46) and vertical displacements of 13.17 cm (SD = 4.75), while OptiTrack® recorded mean heights of 30.12 cm (SD = 2.91) and vertical displacements of 15.67 cm (SD = 2.63). Despite the greater variability observed in BLE system measurements, both systems accurately captured vertical vertical absolute displacement (D), with means of 32.05 cm (SD = 7.36) for BLE and 31.80 cm (SD = 3.25) for OptiTrack®. Performance analysis showed high precision for both systems, with BLE and OptiTrack® achieving precision rates of 98.5%. Sensitivity, however, was lower for BLE (97.5%) compared to OptiTrack® (98.7%). The BLE system’s F1 score was 97.9%, while OptiTrack® scored 98.6%, indicating both systems can reliably assess ergonomic risk. These findings demonstrate the potential of using BLE-based IMUs for workplace ergonomics, though further improvements in measurement accuracy are needed. The user-friendly BLE-based system and semi-automatic platform significantly enhance risk assessment efficiency across various workplace environments.

Factors associated with gingival recession prevalence in undergraduate students of the Faculty of Dentistry of the Universidad de los Andes in the year 2022.

To determine the prevalence of gingival recessions in students of the faculty of odontology at Universidad de Los Andes and the factor associated with its presence. In this cross-sectional study, a randomized stratified sampling was used to select the students. The sample included 311 undergraduate students evaluated between March and December 2022. The year spectrum was from 17 to 29 years old. Two calibrated examiners intra e interoperator completed a clinical evaluation with a periodontal probe, where the purpose was to diagnose gingival recessions and identify if there were any related factors such as smoking, braces, bruxism, marginal insertion frenulum, fine phenotype, and malposition. The total prevalence was described with each trust interval of 95%. The association between categorical variables was analyzed with the chi-square test, and the t-student test of the Mann-Whitney test analyzed the difference between continuous variables and recession prevalence. 93,56% of the students presented at least one gingival recession. The highest prevalence related to teeth occurred in pieces 1.6, 3.4, 2.6, and 4.1, and the most severe were 3.3, 4.3, and 1.3. The most associated factor related to recessions was orthodontics, with a prevalence of 75,2%. Bruxism showed a positive association with the number of recessions, with a prevalence of 60,7%. Buccal gingival recessions were very prevalent in undergraduate students at the dental school of Universidad de los Andes during 2022, and they were strongly associated with the history of orthodontics.