View clinical trials related to Oxidative Stress.
Filter by:The overall purpose of this study is to understand the role of disrupted sleep in the association of exposure to early life adversity (adverse childhood experiences (ACEs)) with vascular endothelial (dys)function. In Aim 1 (The Iowa ACEs and Sleep Cohort Study), the investigators will utilize a cross-sectional cohort design with a state-of-the-art translational approach. Participants will be recruited to objectively characterize the degree to which lower sleep quality and quantity contribute to ACEs-related endothelial dysfunction, inflammation, and oxidative stress in young adults using: 1. rigorous at home sleep monitoring using 7-nights of wrist actigraphy and 2 nights of home-based polysomnography to objectively measure sleep quality (sleep efficiency, wakefulness after sleep onset and sleep depth), and total sleep duration, 2. in vivo assessment of endothelial function via flow-mediated dilation testing, and 3. in vitro determination of endothelial cell inflammation and oxidative stress from biopsied endothelial cells. This study to achieve this Aim. In Aim 2, approximately 70 eligible participants from Aim 1 (The Iowa ACEs and Sleep Cohort Study) will then be randomized to either a 6-week behavioral sleep intervention (cognitive behavioral therapy for insomnia) or a wait-list control to determine the mechanistic contribution of sleep disruption to vascular dysfunction in young adults with moderate-to-high exposure to adverse childhood experiences (ACEs). Following the intervention, participants will again complete: 1. rigorous at home sleep monitoring using 7-nights of wrist actigraphy and 2 nights of home-based polysomnography to objectively measure sleep quality (sleep efficiency, wakefulness after sleep onset and sleep depth), and total sleep duration, 2. in vivo assessment of endothelial function via flow-mediated dilation testing, and 3. in vitro determination of endothelial cell inflammation and oxidative stress from biopsied endothelial cells.
The involvement of the kidneys in patients infected with the SARS-CoV-2 virus at the outset of the pandemic was associated with high mortality rates worldwide. This was in part due to the generation of an inflammatory process and exacerbated oxidative stress. The present study was initiated to investigate the relationship between morphofunctional changes and gene expression in the kidney tissue of deceased Mexican patients prior to the initiation of vaccination. The investigator designed a single-center, prospective, cohort study, to analyze and relate the morphofunctional changes and gene expression of inflammatory and oxidative stress molecules in the kidney tissue of men who died from severe COVID-19. A total of 40 percutaneous renal biopsies from deceased patients with SARS-CoV-2 infection were included in the study and divided into two a groups. One group was preserved in trizol to obtain RNA and total protein, while the remaining sample was fixed in formalin to be examined by staining with hematoxylin and eosin. The histopathological analysis was conducted by an experienced nephropathologist. The expression of molecules was evaluated by real-time PCR (nphs2, slc9a1, cx3cl1, havcr1, slc22a17, sod2, egf, timp2, hmox1, fabp1, and so forth). The following biomarkers were analyzed: IL-6, Arg-1, DPP4, GSTT1, GGT1, OCL, CYP3A4, and CL-8. Additionally, Western blot analysis was conducted on claudins-5, occludin, HSP70, NRF-2, SOD2, NQO1, γ-GCL, and RAGE. The estimated glomerular filtration rate (eGFR) was calculated using the CKD-EPI (2021) equation, with the subjects divided into two groups based on their eGFR: >60 or <60 ml/min/1.73 m². The statistical analysis was conducted using the Stata program and GraphPad Prism software.
The objective of this study is to evaluate the effects of royal jelly on inflammation and cellular senescence in patients with chronic kidney disease (CKD) on hemodialysis (HD).
The goal of this clinical trial was to evaluate the effectiveness of a low glycemic index diet (LGID) on seizure frequency, oxidative stress markers and quality of life in children with drug-resistant epilepsy. Based upon the aims, the following hypotheses were tested: 1. LGID reduces seizure frequency in children with drug-resistant epilepsy. 2. LGID improves oxidative parameters in children with drug-resistant epilepsy 3. LGID improves quality of life and mental health in children with drug-resistant epilepsy Participants were prescribed the LGID for 3 months.At baseline and at outpatient clinic follow-ups at 3 months, anthropometric measurements were taken, the strengths and difficulties questionnaire (SDQ), Pediatric Inventory of Quality of Life (PedsQL) and depression scales were administered and samples for biochemical measurements were collected. Diet compliance was evaluated by food consumption records during monthly follow-up visits (at 1 , 2, and 3 months).
The aim of the research project was to investigate the effects of hyperbaric oxygen (HBO) treatment on the redox equilibrium in individuals with different pathological conditions. Both hyperbaric oxygenation and the pathological condition are associated with redox imbalance (oxidative stress), however, HBO is successfully used in the treatment of chronic wounds, e.g., diabetic foot syndrome, as well as in sudden and acute hearing loss, e.g., acute acoustic trauma or idiopathic sudden sensorineural hearing loss.
The aim of this study is to evaluate the effects of Brazil nut supplementation on inflammation, oxidative stress and intestinal microbiota in patients with chronic kidney disease undergoing conservative treatment.
The purpose of this research is to test the hypothesis that the consumption of meat products without additives, in comparison with their analogues with additives, could be beneficial in terms of modifying health markers. A 5-week clinical trial with two parallel arms will be performed with two parallel arms. Changes in different serum biomarkers of lipid metabolism, glucose, oxidative stress and inflammation will be analysed. Biomarkers related to digestive health, such as short chain fatty acid (SCFA) production and impact on the gut microbiota, will also be evaluated. Finally, factors such as body mass index (BMI), body fat percentage and markers of exposure to additives will be measured.
Bacoxy_I study aims to evaluate the efficacy of a standardized Bacopa monnieri extract, Bacopa-400®, on vascular oxidative stress.
The goal of this clinical trial is to learn if Kangaroo Mother care can have effect on oxidative stress in premature neonates. It will also learn about the bonding between mother and her premature infant. The main questions it aims to answer are: - Does Kangaroo mother care lower the biomarker of oxidative stress in premature neonates? - Is Kangaroo mother care associated with mother-infant bonding? Researchers will compare Kangaroo mother care to Conventional incubator care to see if Kangaroo mother care works to have effect on oxidative stress. Participants will be: - given Kangaroo mother care on third day of life or standard incubator care for one hour - Urine sample for oxidative stress biomarker will be collected via noninvasive method before and after Kangaroo mother care or conventional incubator care from premature neonates. - Mother-infant bonding scale will be filled by mothers of enrolled premature infants before and after kangaroo mother care and conventional incubator care
Vascular target organ damage (TOD), defined as structural or functional deleterious changes in large and small arteries, is related to unfavorable arterial biomechanics, atherosclerosis and arteriosclerosis. Endothelial dysfunction due to unfavorable redox and glycation states on the bases of these phenomena. However, little is known about the role of glycoxidation on arterial biomechanics and TOD in apparently healthy individuals. The main hypothesis is that glycation and glycoxidation status are associated with arterial biomechanical abnormalities and TOD in patients with moderate to high cardiovascular risk. This is an observational, ambispective, and multicenter project that will include non-smoking patients over 18 years, without diabetes mellitus or established cardiovascular disease. Demographic, epidemiological, and clinical-anthropometric variables will be collected, including data from ambulatory blood pressure monitoring. The investigators will measure the serum percentage of glycated hemoglobin, glycated albumin, and fructosamine levels; along with quantification of skin advanced glycation and glycoxidation end productos (AGEs). Plasma concentration, activity, and structure of catalase, glutathione peroxidase, and superoxide dismutase in relation to the patient's glycation and glycoxidation status will be also evaluated. Concurrently, several biomechanical parameters will be assessed in the Common, Internal Carotid Artery, and distal limb arteries using ultrasound exploration. Incipient microvasculature damage will be also evaluated by retinal image. Patients will be followed up for the development of arterial biomechanical abnormalities and TOD, along with cardiovascular events.