There are about 9868 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.
After thoracic surgical intervention, patients often feel intense pain with respiratory movements reduction making coughing less effective. The air stacking improves peak of expiratory flow (PEF) and cough peak flow (CPF) in neuro myopathies, thus raising the hypothesis that may also be effective in patients undergoing thoracic surgeries. Objectives: To evaluate the effectiveness, safety and feasibility of air stacking on postoperative PEF and CPF in patients undergoing thoracic surgeries. Methods: Patients undergoing thoracic surgery underwent air stacking on 3th PO. Dyspnea, pain, SpO2, maximum inspirational pressure (MIP), maximum expiratory pressure (MEP), PEF and CPF were evaluated in pre and postoperatory.
Inorganic nitrite and nitrate can be reduced to NO and NO-related species such as S-nitrosothiols via the nitrate-nitrite-NO pathway. This is due to the reduction of nitrate to nitrite by the action of bacteria in the mouth and the reduction of nitrite to NO depending on the acidic pH on the stomach or by enzymes with nitrite-reductase activity. The acidic environment of the stomach is very important to the formation of NO and S-nitrosothiols and several studies suggest that changes in gastric pH can affect this conversion. In this context, bariatric surgery, by altering the anatomy of the stomach and increasing gastric pH, can affect the nitrate-nitrite-NO pathway and change the antihypertensive and antioxidant effect of sodium nitrate.
The goal of this clinical trial is to compare occlusal splint and arthrocentesis in patients with disc displacement with/without reduction. The main question it aims to answer are: • Is there a more effective treatment for this cases? Participants will answer a questionary about pain and functional limitations. Researchers will compare Group 1(occlusal plate) and Gruoup 2 (arthrocentesis) to see if there is pain reduction and functional improvement in patients with disc displacement with/without reduction
The goal of this study was to investigate the effects of Photobiomodulation therapy (PBMT) on performance, oxygen uptake (VO2 kinetics), and lower limb muscle oxygenation during three successive time-to-exhaustion tests (TTEs) in cyclists. This was a double blind, randomized, crossover, placebo-controlled trial study. Sixteen cyclists (~23 years old), with a cycling training volume of ~460 km/week, volunteered for this study. In the first session, cyclists performed a maximal incremental test to determine maximal oxygen uptake and maximal power output (POMAX). In the following sessions, cyclists performed three consecutive TTEs at POMAX. Before each test, PBMT (135 J/thigh) or a placebo (PLA) PBMT was applied to both thighs. VO2 amplitude, O2 deficit, time delay, oxyhemoglobin (O2Hb), deoxyhemoglobin (HHb), and total hemoglobin (tHb) were measured during tests on the right vastus lateralis. The PBMT, applied before three successive TTE, increased performance of the first and second TTE (~10-12%) tests, speed of VO2 and HHb kinetics during the first test, and increased peripheral muscle oxygenation (increase in HHb and tHb) in the first and second exhaustion tests. However, the PBMT effects were attenuated in the third TTE, as performance and all the other outcomes were similar to the ones from the PLA intervention. In summary, PBMT application increased the first and second successive TTEs, speed of VO2, and muscle oxygenation.
The purpose of this trial is to evaluate 1) the dermatological tolerability of 2 facial sunscreens after 21 (+2) days of use under normal conditions on the half face by adult subjects with sensitive skin, 2) Compare the efficacy of investigational products (IPs) after 21 (+2) days of use in adult subjects with sensitive skin, under dermatological supervision through the following evaluations: the transepidermal water loss in the nasolabial region; the sensory perception of the subjects using the sensory perception questionnaire, after 21 (+2) days of use under normal conditions; the sensitivity of the subjects' skin after the first application of each product using a questionnaire on the perception of signs of discomfort.
It is known that the consumption of proteins, and their consequent hyperaminoacidemia, acts synergistically with exercise in the modulation of muscle protein synthesis. In this sense, a recent study demonstrated that supplementation of a blend of collagen and milk proteins is effective in inducing increases in muscle protein synthesis rates in combination or not with exercise. Accordingly, collagen protein supplementation has also been shown to reduce nitrogen excretion and maintain body mass in individuals undergoing caloric restriction and exercise program. Additionally, increasing collagen peptide intake has been shown to be effective in increasing collagen synthesis and reducing musculoskeletal pain. In fact, there is evidence that collagen peptide supplementation can improve functional properties in patients with chronic ankle instability. Collagen peptides have a low molecular weight and a high proportion of proline and hydroxyproline, making them more resistant to intestinal digestion and conferring a high transport efficiency and absorption speed. Thus, collagen peptides can accumulate in connective tissue, stimulating the synthesis of extracellular matrix in chondrocytes, for example. Taken together, the evidence suggests that collagen peptide supplementation may be potentially beneficial for improving functionality in different contexts. In this sense, global demographic projections indicate that the oldest population (>55 years old) will increase substantially in the next 50 years, surpassing 2 billion by the year 2050. Aging, which leads to loss of functionality and clinical conditions associated with muscle, bone and cartilage dysfunctions. The search for lifestyle strategies capable of ensuring quality of life and autonomy and preventing chronic diseases in older individuals is of great clinical relevance. Thus, the eventual scientific proof of the efficacy of collagen protein supplementation in this population may constitute a therapeutic alternative of broad social, marketing and clinical interest, with possible extension of benefits to other age groups and groups with other characteristics. Thus, the present study aims to investigate whether collagen peptide supplementation combined with exercise provides gains in functionality (primary outcome), muscle mass and strength, bone remodeling markers, and quality of life in adult individuals over 55 years of age.
The goal of this clinical trial is to evaluate the effects of nutritional intervention on anthropometric, biochemical and cardiovascular parameters in participants with type 2 diabetes mellitus. Participants will be distributed into 2 groups (control and intervention). Participants in the control group will only undergo conventional medical assessment and participants in the intervention group will receive the same medical care, concomitantly with nutritional assessment. The nutritional intervention is expected to reduce anthropometric data, glycemic and cardiovascular parameters in participants with T2DM, as opposed to the control group.
Oral cancer (OC) is a public health problem in Brazil, with high morbidity and mortality, mainly associated with late diagnosis, which implies high-cost treatments and great social impact, with aesthetic and functional sequelae. Smokers and alcoholics are at increased risk for the disease, being early detection the most effective way to increase survival. In Brazil, cancer plan recommends early diagnosis of OC through opportunistic examination, which is carried out during regular visits to the dentist. However, this strategy has not yet been able to reverse the late diagnosis, which may be due to the low access to dental appointments by the most vulnerable groups. Studies point to the effectiveness of the preventive physical examination of the mouth for early detection when directed to the high-risk population. The aim of the present study is to compare different strategies aimed at expanding the access of the high-risk population to preventive physical examination of the mouth. A cluster-randomized trial (control group and experimental groups I and II) will be carried out in Primary Health Care units in Programmatic Area 5.2 of the city of Rio de Janeiro (eight neighborhoods in the West Zone). In the control group, there will be no change in current care. In both experimental groups, Community Agents and health professionals will be trained in OC prevention and instructed to call the users with high-risk for OC to the preventive examination of the mouth at the health unit. After 6 months, in experimental group I, an active search will be carried out for users who did not show up for the preventive examination, while in experimental group II, a campaign on OC will be carried out for a month, inviting the population to the preventive examination. After one year, the number of people at increased risk for OC examined in each group will be compared and correlated with sociodemographic and clinicopathological variables.
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.