There are about 10004 clinical studies being (or have been) conducted in Brazil. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The goal of this clinical trial is to evaluate the effects of nutritional intervention in eating disorders. Participants underwent an intervention without a control group over 8 weeks. This study aims to provide the maximization of nutritional rehabilitation and support changes in the construction of food autonomy, through a food and nutritional intervention.
The goal of this clinical trial is to compare, the effect of letting the xenogeneic bone graft exposed to the oral environment or seal off the graft with a collagen matrix. Them main questions it aims to answer are: - The enhancement of soft tissue healing during the initial phases following immediate implant placement. - The secondary aim is to evaluate the dimensional alterations in hard tissues at immediately placed implants and different biomaterial protocol. It were selected patients with indication of flapless extraction in posterior teeth, which was placed immediate implant (n=28) and gap filling with deproteinized bovine bone mineral (Geistlich Bio-Oss®). In this study, participants were stratified into two randomized blocks, each corresponding to a distinct surgical technique: left exposed the graft to the oral environment or coverage with a collagen matrix (Geistlich Mucograft®). - Previously the extraction was performed the measurement of the keratinized gingiva, and after 04 months of implant placement. - The soft tissue healing was evaluated on days 02, 07, 30 days; by means of a blue-stained solution (methylene blue 0.05%) and standardized photograph. - In the same date from different healing times it was performed immunoenzymatic analysis of the levels of VEGF (vascular endothelial growth factor), IL-1β (interleukin-1β) and FGF2 (fibroblast growth factor 2). - It was also be performed cone beam computed tomography images quantifying the soft and hard tissues thickness of the facial and lingual bone wall. The clinical trial examiner was blinded during the study period.
Laser Ablation therapy (LA) using an 810nm diode laser and Indocyanine Green (ICG) solution, which efficiently absorbs laser energy and increases the effectiveness of tissue removal. Intracanal heating can potentially cause damage to structures outside the tooth root. The study was to observe possible changes in the periodontal ligament and cementum resulting outside the root using this treatment. Histological and morphological examination of extracted cementum, ligament, and collagen post-exposure showed no difference in these structures vs. non-treated controls.
The goal of this observational study was to assess the degree of agreement between the endoscopic and anatomopathological diagnosis of sessile serrated colorectal lesions in adult patients undergoing colonoscopy in Hospital Sírio-Libanes. The main questions it aimed to answer were: - The degree of agreement between endoscopic and anatomopathological diagnosis of sessile serrated colorectal lesions by calculating the Kappa Value of agreement. - To establish the detection rate of sessile serrated lesions and adenomas in the Endoscopy Department at Hospital Sírio-Libanês. - To evaluate the degree of agreement between endoscopic and anatomopathological diagnosis of sessile serrated colorectal lesions based on the resection method. - To assess the accuracy, positive predictive value, and negative predictive value of endoscopic diagnosis of serrated lesions compared to anatomopathological diagnosis. The data were prospectively collected through a form specifically designed for this project, that was completed immediately after the examination by the performing colonoscopist. All patients enrolled in this study agreed to participate in it and signed an informed consent form prior to the colonoscopy.
This is a randomized, controlled, double-blind and repeated-measures clinical trial evaluated the photoactivation of hydrogen peroxide gels in different concentrations with blue or violet LED in terms of whitening efficacy and tooth sensitivity.
The study called "Effect of low-intensity aerobic training associated with global muscle strengthening in post-COVID-19 individuals" wants to check if doing easy workouts and strengthening muscles can make breathing problems better for adults who had COVID-19. The participant has been apprised that potential benefits may be derived from the research, including the reception of treatment for pertinent complaints meeting the study's inclusion criteria. Conversely, they have also been briefed on possible discomforts and risks associated with the study, such as the exposure of their image to the therapist administering the treatment. The participant acknowledges that their privacy will be upheld, ensuring the confidentiality of personal information, including their name or any other identifying data. It has been communicated that the participant reserves the right to decline participation in the study or withdraw consent at any point without the obligation to provide justification. Moreover, they are assured that opting out of the study will not result in any adverse consequences.
Purpose: This study aimed to determine the effect of 48 weeks of resistance training (RT) on cardiac function in older women. Methods: Sixty-four older women (≥ 60 years), physically independent, were selected for this study. Participants were randomized into a training group (TG, n = 33) and a control group (CG, n = 31). The RT program was conducted over 48 weeks, three sessions a week, on nonconsecutive days, in the morning hours. Participants performed eight exercises for the whole body (chest press, horizontal leg press, seated row, leg extension, triceps pushdown, lying leg curl, preacher curl, seated calf raise) in three sets of 8-12 repetitions. The echocardiography was performed according to current guidelines before and after 48 weeks by an experienced echocardiographer blinded to patient status and group assignment. One-repetition maximum (1-RM) tests were used to analyze muscular strength. Glusoce, lipid profile, and C-reactive protein were measured. DEXA was used to measure body fat and muscle mass.
Medicines with peptide-1 receptor agonist action similar to glucagon (GLP-1) are a modern therapeutic option for obesity and diabetes mellitus. Semaglutide is a representative of this class medication whose mechanism of action can result in the slowing of gastric emptying and reduced gastric motility, a scenario that can increase the risk of pulmonary aspiration in individuals undergoing anesthesia and despite adequate fasting. Given the severity of the occurrence of bronchoaspiration, the action biological analysis of GLP-1 analogues on gastric function and incremental use of these medications, through gastric ultrasound, we will aim to evaluate the gastric contents of volunteers who do not have risk factors for bronchoaspiration, who will not undergo anesthesia, but are with the fasting recommended for this purpose and are using semaglutide, an analogue of GLP-1. Our hypothesis is that the majority of individuals using these medications have a full stomach even during fasting times recommended in the literature. In view of this, for this population we must adapt safety criteria during the anesthetic procedure.
Introduction: Studies have shown that static stretching performed immediately before strength exercises impairs performance. However, unlike static stretching, dynamic stretching performed immediately before muscular strength exercises does not seem to result in worse performance, and in some cases may even provide greater strength performance. Still, the literature is controversial and inconclusive to date. Objective: To verify the acute effect of static stretching versus dynamic stretching on the muscle strength of young university students. Methods: The sample will consist of 102 physically active young university students, of both sexes, aged between 18 and 25 years old, subdivided into three groups: Group 1 - static stretching; Group 2 - dynamic stretching; and Group 3 - control. Everyone will undergo assessment of the isokinetic peak torque of the knee extensor and flexor muscles at 60º/s and 180º/s in the dominant lower limb. Next, the experimental groups (Groups 1 and 2) will perform static or dynamic stretching exercises for the quadriceps and hamstring muscles, while the control group will not perform any activity. Finally, everyone will undergo muscle strength assessment again according to the same procedures used initially. Analysis of covariance (ANCOVA) will be used to compare groups, with data from the initial assessment as adjustment covariates.
Bone graft added to the dental socket immediately after tooth extraction prevents atrophy and deformity of the bone at the site of element loss, enabling rehabilitation with implants. Photobiomodulation accelerates bone healing; stimulates blood flow; activates osteoblasts, decreases osteoclastic activity, and improves the integration of the biomaterial with bone tissue. The study aims to develop a protocol for the management and preservation of alveolar bone after the loss of first and/or second permanent molars in patients aged between 8 and 17 years, with an indication for extraction associated or not with 808 nm infrared laser treatment. . Materials and methods: 60 patients aged between 8 and 17 years will be randomized and randomly divided into 4 groups, n= 15: Exo (extraction), Exo+Laser (extraction and laser treatment), Exo+Biomat (extraction with graft biomaterial), Exo+Biomat+Laser (biomaterial extraction and grafting and laser treatment). The biomaterials of choice will be Plenum® OSShp and Plenum® Guide (Brazil), added to the alveolus immediately after molar extraction, groups that will receive the laser (λ = 808 nm, power = 100 mW, radiant energy 3J per point in 3 buccal, occlusal and lingual/palatal points), will receive the irradiation in the surgical act, 48 hours and 10 days after the surgery, in the Exo and Exo+Biomat groups a similar laser device without emission of irradiation will be used, the operator who will apply the laser and the patient will be blind to the device used and the patient will not know whether or not he received the biomaterial. Analysis: computed tomography and intraoral scanning were performed pre-surgery, 3 and 6 months after surgery; to assess bone volume by measuring the height and width of the socket in each group, as well as trabecular bone and the interdental space of the teeth lateral to the missing element. Statistical analysis will be performed using the Shapiro-Wilks test, Student's t-test, or Wilcoxon-Mann-Whitney test for parametric and non-parametric data, respectively, they will be two-tailed and the significance level adopted will be α = 0.05.