Clinical Research Directory

Cerebral Hemodynamic Effects of Oxygen and Antioxidants (CHEOXANT)

This study is called CHE-OX-ANT (Cerebral Hemodynamic Effects of Oxygen and Antioxidants). It is a single-center, academic research project led by the Department of Intensive Care at Erasme Hospital (Université Libre de Bruxelles). The study focuses on understanding how the brain and blood vessels react when a person breathes pure oxygen and how these effects may be influenced by giving vitamin C, an antioxidant. Oxygen is one of the most common treatments in hospitals. While it can be life-saving, too much oxygen may sometimes cause harmful effects, such as oxidative stress (an imbalance between damaging molecules called free radicals and the body's defenses). Antioxidants like vitamin C may help counteract these effects. The goal of the study is to examine how a short period of high oxygen (30 minutes of 100% oxygen through a mask) affects cerebral hemodynamics, microcirculation, microperfusion, blood markers (levels of oxidative stress, antioxidant activity, and microparticles). The study will also test whether giving vitamin C beforehand changes these responses compared to a placebo (saline solution). Each volunteer will participate in two sessions, one week apart. Before each session, participants will receive either vitamin C (given intravenously) or a placebo (saline). They will not know which one they receive. Then, they will breathe 100% oxygen for 30 minutes through a facial mask. Measurements will be taken at three times: before oxygen (t0), just after oxygen (t1), and 1 hour later (t2). These include: ultrasound of the brain's blood flow (transcranial Doppler), measurements of skin perfusion and blood samplings.

Efficacy and Safety of Resveratrol in Patients With Rheumatoid Arthritis.

The aim of the current study is to evaluate the effects of resveratrol on the clinical outcome(s) of patients with moderate rheumatoid arthritis. Objectives : 1. To investigate the effects of Resveratrol on inflammation and oxidative stress by measuring: * Serum Sirtuin 1(SIRT1) * Serum Myeloperoxidase (MPO) * Serum C-reactive protein (CRP) 2. To investigate the effects of Resveratrol on disease activity by measuring the disease activity (DAS28 score). 3. To investigate the effect of Resveratrol on improving the quality of life using the Health Assessment Questionnaire Disability index (HAQ-DI). 4. To assess any adverse effects related to Resveratrol. Patients: Eligible patients (no=118) will be randomly assigned in a 1:1 ratio to one of two groups: 1. Control group: 59 patients will receive the standard treatment for management of RA for 3 months. 2. Resveratrol group: 59 patients will receive the standard treatment for management of RA in addition to Resveratrol 1 gm daily, (Organix Egypt) (given as one 1000 mg tablets once daily) for 3 months.

Pomegranate Supplementation and Well-Being Among Medical Students and Residents

Medical students and residents have high rates of mental distress and burnout related to the intellectual and time demands of their training. Research shows that physiological stress on the body can be a result of fatigue and high stress work, and is associated with experiences related to mental distress. Pomegranate is a fruit that is known to contain a variety of antioxidant substances that can reduce physiological stress. This study will look at the potential for pomegranate supplementation to reduce physiological stress and improve well-being in medical students and residents.