757 results match your criteria: "Federal University of Rio Grande do Norte -UFRN[Affiliation]"
Biotechnol Appl Biochem
April 2024
Laboratory of Biochemical Engineering, Chemical Engineering Department, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
Beer is a beverage that contains gluten and cannot be consumed by people with celiac disease. In this context, the enzyme prolyl endoprotease (PEP) can be used to reduce the gluten content in beer. The present study aimed to produce the PEP from Aspergillus sp.
View Article and Find Full Text PDFFront Artif Intell
December 2023
Laboratory of Technological Innovation in Health (LAIS), Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
The COVID-19 pandemic is already considered one of the biggest global health crises. In Rio Grande do Norte, a Brazilian state, the RegulaRN platform was the health information system used to regulate beds for patients with COVID-19. This article explored machine learning and deep learning techniques with RegulaRN data in order to identify the best models and parameters to predict the outcome of a hospitalized patient.
View Article and Find Full Text PDFSensors (Basel)
December 2023
Department of Computer Engineering and Automation-DCA, Federal University of Rio Grande do Norte-UFRN, Natal 59078-900, RN, Brazil.
Epilepsy is a condition that affects 50 million individuals globally, significantly impacting their quality of life. Epileptic seizures, a transient occurrence, are characterized by a spectrum of manifestations, including alterations in motor function and consciousness. These events impose restrictions on the daily lives of those affected, frequently resulting in social isolation and psychological distress.
View Article and Find Full Text PDFFoods
December 2023
Academic Unit Specialized in Agricultural, Federal University of Rio Grande do Norte (UFRN), Macaíba 59280-000, RN, Brazil.
The objective of this study was to develop fresh and matured cheeses with different bovine colostrum levels, aiming to promote the consumption of dairy products with the addition of colostrum. Four different cheese formulations were produced with a mixture of 0:100, 15:85, 20:80, and 25:75, bovine colostrum:milk (:), and aged for 0, 10, 20, and 40 days. Milk, colostrum, and fresh and matured cheeses were submitted to physicochemical characterization.
View Article and Find Full Text PDFMicrosc Microanal
March 2024
Postgraduate Program in Animal Science, Department of Biosciences, Biological and Health Sciences Center, Federal University of the Semi-Arid Region (UFERSA), Avenida Francisco Mota, 572, Bairro Costa e Silva, Mossoró, Rio Grande do Norte, 59625-900, Brazil.
Morphological study of the tongue is an interesting way of understanding evolutionary processes associated with feeding habits. Therefore, the aim of the present study was to describe the tongue morphology of the Antillean manatee and to understand possible morphological relationships with its way of capturing food. Macroscopic dissections and light and scanning electron microscopy analyses of seven manatee tongues were performed.
View Article and Find Full Text PDFbioRxiv
December 2023
Princeton Neuroscience Institute & Department of Psychology, Princeton University, Princeton NJ 08544, USA.
Active sensing is a behavioral strategy for exploring the environment. In this study, we show that contact vocal behaviors can be an active sensing mechanism that uses sampling to gain information about the social environment, in particular, the vocal behavior of others. With a focus on the realtime vocal interactions of marmoset monkeys, we contrast active sampling to a vocal accommodation framework in which vocalizations are adjusted simply to maximize responses.
View Article and Find Full Text PDFInt J Gynaecol Obstet
July 2024
Health Sciences Postgraduate Program, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
Pathol Res Pract
January 2024
Department of Morphology, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil. Electronic address:
Introduction: Evaluate the immunohistochemical expression of T-bet and IFN-γ in lower lip (LLSCC) and oral tongue squamous cell carcinoma (OTSCC), verifying the presence of Th1 responses in lesions with different clinical conditions.
Methods And Materials: Thirty OTSCC and 30 LLSCC were analyzed by immunohistochemistry. T-bet was quantitatively assessed by parenchyma cell and stroma quantification, and IFN-γ was semi-quantitatively analyzed: 1:0-25%; 2:26-50%; 3:51-75%; 4:> 75% immunopositive cells.
J Prosthet Dent
November 2023
Adjunct Professor, Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil.
Statement Of Problem: Although high survival rates of implant-supported fixed partial dentures (ISFPDs) have been reported, evidence for complications, failures, and factors that interfere with their longevity is lacking.
Purpose: The purpose of this scoping review was to review the literature to investigate the most common failures and complications of ISFPDs.
Material And Methods: This review followed the preferred reporting items for systematic reviews and meta-analyses scoping review (PRISMA ScR) guidelines, and the methodology was registered on the open science framework (osf.
PLoS One
December 2023
Post-Graduation Program in Public Health, Federal University of Rio Grande do Norte, Natal, Brazil.
The objective of the study is to present a systematic review and meta-analysis protocol for evaluating the effects of health education gamification-based interventions, on health parameters (food consumption, sleep quality and physical activity) of adolescent students. This protocol was registered on the International Prospective Register of Systematic Reviews (PROSPERO) database (CRD42022373833). The search will be performed in the following databases: MEDLINE, Embase, Scopus, ERIC, ScienceDirect, Web of Science, Cochrane, LILACS, APA, and ADOLEC.
View Article and Find Full Text PDFSci Rep
November 2023
Department of Public Health, Graduate Program in Health Science, Federal University of Rio Grande do Norte (UFRN), Natal, Rio Grande do Norte, Brazil.
Breast cancer treatment leads to physical and psychological changes. The aim of this study was to analyze the incidence of sexual dysfunction and its risk factors in women diagnosed with breast cancer. This retrospective cohort study included women diagnosed and treated for breast cancer (exposed group, n = 90) and healthy women (non-exposed group, n = 93).
View Article and Find Full Text PDFPLoS One
November 2023
Biochemistry Department, Federal University of Rio Grande do Norte-UFRN, Natal, Brazil.
Background: The microfluidic sperm selection (MFSS) device has emerged as a promising adjunct in assisted reproduction treatments (ART). It employs mechanisms of biomimicry based on the microanatomy of the female reproductive tract through strategies like chemotaxis and rheotaxis. Numerous studies assert improvements in ART outcomes with the use of MFSS, often attributed to the theoretical reduction in sperm DNA damage compared to other techniques.
View Article and Find Full Text PDFJ Prosthet Dent
November 2023
Full Professor, Department of Dentistry, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil.. Electronic address:
Statement Of Problem: The union of the metal removable partial denture framework to the heat polymerized acrylic resin is related to prosthesis longevity. However, methods to enhance this bond are not clear to clinicians and dental laboratory technicians.
Purpose: The purpose of this systematic review was to identify which metal surface treatments best increase the bond strength between heat polymerized acrylic resin and removable partial denture alloys.
Oper Dent
November 2023
*Rodrigo Othavio Assunção Souza, DDS, MSc, PhD, professor, Federal University of Rio Grande do Norte (UFRN), Brazil.
There is a lack of reports in the literature on the long-term clinical performance of ultratranslucent zirconia, especially considering its use in manufacturing monolithic veneers. The purpose of this case series is to describe the aesthetic treatment steps of three patients with minimally invasive ultratranslucent zirconia veneers and to report the clinical findings up to five years. Three patients (woman: 2, man: 1; mean age: 30 years) unsatisfied with their dental aesthetics sought dental treatment.
View Article and Find Full Text PDFInt J Mol Sci
November 2023
Laboratory of Plant Transformation and Microscopy Analysis (LPTAM), Cell Biology and Genetics Department, Centro de Biociências, Federal University of Rio Grande do Norte (UFRN), Natal 59078-970, RN, Brazil.
Oxidative stress has been associated with different diseases, and different medicinal plants have been used to treat or prevent this condition. The leaf ethanolic extract (EE) and aqueous extract (AE) from have previously been characterized to have antioxidant potential in vitro and in vivo. In this study, we worked with EE and AE and two partition phases, AF (ethyl acetate) and BF (butanol), from AE extract.
View Article and Find Full Text PDFJ Sports Med Phys Fitness
February 2024
Department of Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal, Brazil.
Background: Analyzing fat free mass (FFM) helps sport professionals during the prescription of sport training for children and adolescents in a sport initiation program. In this way, it is possible to determine fat mass (FM) (FFM subtracted from total body weight) and design interventions to increase FFM and reduce %F, making it possible to maximize performance in relation to the physical demands of sport. However, there is still no reliable anthropometric index to analyze FFM in this population.
View Article and Find Full Text PDFIJID Reg
December 2023
Laboratory of Technological Innovation in Health (LAIS), Hospital Universitário Onofre Lopes, Federal University of Rio Grande do Norte (UFRN), Natal, RN, Brazil.
Objectives: Previously, we presented the effectiveness of ChAdOx1 nCoV-19 half-dose (HD) immunization for preventing new COVID-19 cases. Here, we evaluated the administration of an HD of ChAdOx1 nCoV-19 in the primary immunization protocol (up to two doses) in reducing moderate and severe cases, hospitalizations, and deaths when compared to the administration of full doses (FD) after a long-term follow-up.
Methods: We evaluated data from 29,469 participants between January 2021 and November 2022 who received an HD or FD vaccine and crossed this information with their medical records to identify those who developed moderate or severe cases.
Sci Rep
November 2023
Department of Psychology, Pontifical Catholic University of Rio de Janeiro (PUC-Rio), Rio de Janeiro, Brazil.
Ayahuasca is a brew with psychoactive properties that has been used as an entheogen for centuries, with more recent studies suggesting it is a promising treatment for some clinical disorders. Although there is an emerging scientific literature on its effects, to the best of our knowledge no study has explored the self-reported experiences of first-time ayahuasca users with quantitative textual analysis tools. Accordingly, the current study aimed to analyze the subjective experience of naive individuals with depression and healthy controls after consuming ayahuasca.
View Article and Find Full Text PDFPLoS One
November 2023
Department of Physical Education, Postgraduate Program in Health Society, UERN, Mossoro, Brazil.
Background: To determine the feasibility and effect of high-intensity interval training (HIIT) in individuals with Parkinson's and their effect on symptom modification and progression.
Methods: We conducted this systematic review following the Preferred Reporting Items for systematic review and meta-analysis (PRISMA). All studies were searched in seven databases: MEDLINE (PubMed), Cochrane Central Register of Controlled Trials, Web of Science, EMBASE, SPORTDiscus, Virtual Health Library (VHL) and SCOPUS in September 2020 and updated in June 2023.
J Low Genit Tract Dis
January 2024
Department of Obstetrics and Gynecology, University of Vermont Health Network, Colchester, VT.
Objectives: We set out to assess the efficacy of physiotherapy for vulvodynia.
Materials And Methods: PubMed, Embase, Scopus, Web of Science, SciELO, PEDro, Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov were searched in February 2023.
Sensors (Basel)
October 2023
Electrical Engineering Department, Center of Technology, Federal University of Rio Grande do Norte-UFRN, Natal 59072-970, Brazil.
Some advantages of using cameras as sensor devices on feedback systems are the flexibility of the data it represents, the possibility to extract real-time information, and the fact that it does not require contact to operate. However, in unstructured scenarios, Image-Based Visual Servoing (IBVS) robot tasks are challenging. Camera calibration and robot kinematics can approximate a jacobian that maps the image features space to the robot actuation space, but they can become error-prone or require online changes.
View Article and Find Full Text PDFHeliyon
November 2023
Postgraduate Program in Health Sciences, Federal University of Rio Grande do Norte-UFRN, Natal, RN, 59078-970, Brazil.
Various pathophysiologic mechanisms were proposed to underlie the effect of vitamin D on MetS components. In this systematic review, we reviewed randomized control clinical trials to verify whether vitamin D supplementation (VDS) at different doses is effective concomitantly in controlling high-density lipoprotein cholesterol (HDL-c), triglycerides (TG), fasting glucose level, blood pressure, and central obesity in adults diagnosed with MetS. The following scientific databases were searched from 1998 until April 2023: EMBASE, MEDLINE (PubMed), Web of Science, Latin American and Caribbean Health Sciences Literature (Lilacs), the Cochrane Central Register of Controlled Trials, clinicaltrial.
View Article and Find Full Text PDFClin Oral Investig
December 2023
Department of Oral and Maxillofacial Surgery, Onofre Lopes University Hospital (HUOL), Av. Nilo Peçanha, 620 - Petrópolis, Natal, RN, 59.012-300, Brazil.
Objectives: A randomized controlled clinical trial was developed to evaluate the cardiovascular effects of local anesthetics with vasoconstrictors (LAVC) in healthy and hypertensive patients undergoing teeth extraction with lidocaine 2% with epinephrine 1:100,000.
Materials And Methods: Twenty patients were divided into control (CG - normotensive patients) and experimental groups (EG - hypertensive patients). The variables analyzed were heart rate (HR), oxygen saturation (SO2), systolic and diastolic blood pressure (SBP and DBP), serum catecholamine concentration (dopamine, epinephrine, and norepinephrine), ventricular and supraventricular extrasystoles (VES and SVES respectively), and ST segment depression.
J Indian Prosthodont Soc
November 2023
Department of Dentistry, Federal University of Rio Grande Do Norte (UFRN), Natal, Rio Grande Do Norte, Brazil.
Aim: The aim of this study was to evaluate the accuracy of models of partially edentulous arches obtained by three-dimensional (3D) printing.
Settings And Design: This was an in vitro study.
Materials And Methods: Fifteen partially edentulous models were evaluated, using two methods of measuring dimensions: virtual, using the Standard Tessellation Language files of the models and software (control group), and physical, through printing the models and digital caliper (test group).
Oral Dis
July 2024
Department of Dentistry, Federal University of Sergipe (UFS), Aracaju, SE, Brazil.