There are about 9891 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.
Background: Tai Chi Chuan, a Chinese martial art style, is a mind-body modality that has shown positive impacts on health markers in various populations, particularly older adults. This study aims to investigate the effects of a 12-week program of Tai Chi Chuan exercises based on the Yang 16-movement form and walking on older adults' physical and mental markers. Methods: This study is a randomized, single-blinded, two-arm, parallel, superiority trial. Forty older adults between 60 and 75 years old who are not engaged in any systematic strength and aerobic training program will be recruited. Candidates with language and cognitive problems, a history of cardiovascular diseases (except controlled hypertension), osteoarticular limitations and fractures, severe injuries, and prosthetic placement in the last six months will be excluded. Participants will be randomly allocated on a 1:1 ratio to a 12-week intervention with Tai Chi Chuan and walking two times per week, or an active-control group with walking two times per week. Physical measures will be muscle strength (i.e., knee extensors maximum strength and lower limbs functional performance -primary outcomes-, dynamic knee extensors endurance, handgrip strength, back-leg-chest strength), functional capacity, static balance, muscle thickness and muscle quality of quadriceps. Mental measures will be quality of life, sleep quality, cognitive function, and depressive and anxiety symptoms. Outcomes will be measured before and after 12 weeks of intervention. The analysis plan will use an intention-to-treat approach and protocol criteria. Discussion: The conceptual hypothesis is that the intervention training program with Tai Chi Chuan and walking will lead to greater improvements in both physical and mental parameters due to its multi-component character compared to the walking active-control group.
Premature, non-physiological tooth wear in childhood has numerous repercussions for oral health. This is a growing problem with multifactorial causes and associated with the current lifestyle. The aim of the present study was the development and determination of content validity of the Childhood Early Oral Aging Syndrome (CEOAS) index for the primary dentition as a diagnostic and epidemiological survey tool considering the current changes found in this population.
The goal of this prospective clinical study is to evaluate the effect of different High Flow Nasal Cannula (HFNC) flow rates on diaphragm, rectoabdominal, and oblique thickening fraction, and to determine whether this effect depends on the action of HFNC flow rates on Functional Residual Capacity (FRC) in Infants under 2 years of age with a diagnosis of bronchiolitis and indication for use of HFNC. The main question[s] it aims to answer are: - If the thickening fraction of the abdominal muscle and diaphragm will change at the different flow rates evaluated - If the end-expiration lung impedance (EELZ) will change at the different flow rates evaluated The belt will be installed around the chest before the start of the change in flow rates and monitoring with Electrical Impedance Tomography (EIT) will be initiated. Patients will be positioned in dorsal decubitus elevated 10 to 20 degrees and monitoring will be performed continuously during all flow rate variations and also during the ultrasound performance. Four different randomized flow rates will be used for evaluation: 2.0 liter.Kg-1.min-1, 1.5 liter.Kg-1.min-1, 1.0 liter.Kg-1.min-1, 0.5 liter.Kg-1.min-1. At the end of the randomized order evaluation the infant will remain in the flow of 0.5 liter.Kg-1.min-1 for 5 minutes and then return to the flow of 2.0 liter.Kg-1.min-1. The EIT parameters, ultrasound assessment, and clinical variables will be collected at the end of the 5-minute stay in each lane. The randomization of the order of application of the phases will be carried out in blocks, so that the homogeneity of the sequences is maintained even if the collection is interrupted before reaching the total number of individuals. The blocks will be of size two and four and the test and production lists will be generated with the help of the R packages.
Observational study that aims to evaluate the implementation of a lung cancer screening program in a smoker population included in a public heath service.
Metabolic dysfunction-associated steatotic liver disease (MASLD), formerly known as non-alcoholic fatty liver disease (NAFLD), a major global public health concern, is commonly associated with obesity, diabetes, and dyslipidemia. MASLD is currently the most common cause of chronic liver disease affecting about 80% of people with obesity, ranging from simple fat deposits in the liver to Metabolic Dysfunction-Associated Steatohepatitis (MASH), cellular injury, advanced fibrosis, cirrhosis, or hepatocellular carcinoma. Patients with MASH are also at risk for cardiovascular disease and mortality. There is no universally approved medication for MASH. Weight loss remains the cornerstone of MASH treatment. Patients meeting the inclusion and exclusion criteria and who give informed consent will be enrolled in the trial and undergo the baseline liver biopsy (if none available). Approximately 120 patients with MASH and liver fibrosis (F1-F4 in baseline liver biopsy) will be randomized in a 1:1 ratio to metabolic surgery or medical treatment (incretin-based therapies ± other medical therapies for MASH) and followed for 2 years at which time a repeat liver biopsy will be performed for the assessment of the primary end point.
This project will be conducted in 2 hospitals in Brazil to assess the requirements for four essential amino acids in TPN fed neonates. Using the Carbon Oxidation method (indicator amino oxidation and direct amino acid oxidation method), the investigators will determine the requirement of each of the 4 amino acids. The investigators will determine the requirement for Isoleucine, Leucine, Valine and Tryptophan. The investigators will recruit 18- 20 babies per amino acid study. Breath and urine samples will be collected to determine the oxidation of the indicator amino acid. The response of the indicator amino acid to changes in intake of the test amino acid (isoleucine, leucine, valine and tryptophan) will be analyzed by bi-phase linear mixed effect model to determine the breakpoint or mean requirement for each amino acid. It is hypothesized that the requirement for isoleucine, leucine, valine and tryptophan will be at least 50% lower than what is currently available in commercial solutions used for TPN feeding of neonates.
Among the theories of tinnitus generation, there is that of central neuroplastic changes, which reports the association between changes and reorganization that occur in central auditory pathways and impacts on associated areas due to the altered neural signal. Auditory training modifies these altered pathways through auditory exercises, which provoke positive neuroplasticity. Musical auditory training is a proposal to stimulate auditory, cognitive and metalinguistic skills with activities focused on musicality. Therefore, the objective of this study is to verify the effect of musical auditory training (MAT) on the neuroplasticity of the auditory system and the perception of tinnitus disorder in young adults.
The changes that occur during pregnancy can lead to symptoms and complaints for women. Vaginal delivery has several benefits for both the mother and baby; however, during labor, some injuries may occur, such as lacerations and episiotomies. It is known that the postpartum period is when the body is involuting to its pre-pregnancy state. The perineal pain caused by these injuries during childbirth is a determining factor for recovery, and it may affect not only the physical but also the psychological well-being of women. Therefore, it is necessary to employ techniques that can alleviate pain and edema in the immediate postpartum period, directly influencing recovery. Objective: To compare the use of photobiomodulation with cryotherapy in the immediate postpartum period of 2 hours in parturients who suffered 1st and 2nd-degree lacerations and/or episiotomies. Methods: A randomized clinical trial will be conducted to compare two interventions. Data collection will be through a questionnaire and scales for the evaluation of pain and edema, with women who experienced vaginal delivery and those who suffered 1st and 2nd-degree lacerations or episiotomies. Expected results: Reduction of pain, edema, and inflammatory processes with non-pharmacological techniques, leading to greater comfort and better postpartum recovery.
The goal of this clinical pilot study is to evaluate the pharmacokinetic profile of magaldrate in a group of 10 healthy women, after the administration of a 10 mL drug suspension containing 500 mg of sodium alginate, 267 mg of sodium bicarbonate, 800 mg of magaldrate and 120 mg of simeticone. The main question it aims to answer is the amount of magnesium and/or aluminum, if any, absorbed into the plasma from this oral administration. Participants will take the medication 30 minutes after a standard breakfast. Both groups of participants will take the standard meal but one group will take the medication and the other one won't. Researchers will compare the levels of both ions in plasma in a group to see if there is any absorption, quantifying the basal plasma levels and comparing with the levels obtained after the meal and the medication, when it applies.
A randomized controlled non-inferiority trial will be conducted with 24 individuals aged 18 or older, who are periodontally healthy and require root coverage in bilateral multiple RT1-type recessions involving at least two teeth on each side of the mouth. The number of teeth to be covered must be equal on both sides to avoid imbalance in patient-centered comparisons. Patients included in the study will undergo the bilateral multiple root coverage technique with coronally repositioned flap (Zucchelli and De Sanctis) in both groups. The donor areas for connective tissue will be the hard palate region, with grafts harvested using the linear technique on one side and the free de-epithelialized gingival graft technique on the other side. Each patient will undergo a preparatory phase for study inclusion, consisting of supragingival scaling, polishing, and oral hygiene instructions at least 3 weeks before study inclusion. Patients will be instructed on personalized and proper use of toothbrush, dental floss, and/or interdental brush. All surgical procedures in both groups will be performed by the same operator (CCO). Randomization will determine the side to be operated on first. The other side will be operated on after 30 days or until the patient reports complete absence of symptoms in the area of the first surgery to avoid confusion in patient-centered outcomes regarding pain and satisfaction with the techniques. Outcomes evaluated at 3, 6, 9, and 12 months include: gingival recession depth, probing depth, visible plaque, bleeding on probing, width of keratinized tissue, three-dimensional tissue assessment from intraoral scanning, and quality of life related. Linear and logistic generalized estimating equation models considering the longitudinal nature of the study will be used for data analysis. INCLUSION CRITERIA Patients aged 18 or older requiring root coverage in bilateral multiple recessions involving at least two teeth on each side of the mouth will be included. The number of teeth to be covered must be equal on both sides to avoid imbalance in patient-centered comparisons. Recessions should be RT1 type according to the 2017 Workshop on the Classification of Periodontal Conditions and Diseases (Jepsen et al. 2018) and without non-carious cervical lesions. EXCLUSION CRITERIA Individuals will not be considered eligible if they: - Present any form of immunological compromise; - Have diseases or systemic conditions contraindicating surgical procedures or affecting periodontal healing pattern, such as diabetes and autoimmune diseases; - Present active periodontitis, defined by presence of >=10% subgingival bleeding and probing depth and clinical attachment loss proximal >4mm (Tonetti et al. 2018); - Are current or ex-smokers; - Have allergies to ibuprofen and chlorhexidine digluconate. Research Objective: PRIMARY OBJECTIVE The overall objective of this study is to compare free gingival graft and subepithelial connective tissue graft in outcomes related to multiple recession coverage. SECONDARY OBJECTIVE Compare the two grafts in terms of clinical outcomes of root coverage; Compare the two grafts in terms of digital outcomes of root coverage obtained in scanning and tomography; Compare the two grafts in terms of patient-centered outcomes.