Clinical Research Directory

NMDA Enhancement Combined With Omega-3 for Early Dementia

In this 4-year proposed project, we will enroll 140 patients with aMCI or mild AD into a 24-week randomized, double-blind, placebo-controlled drug trial. All patients will be allocated randomly to one of two treatment groups for 24 weeks (n = 70 in each group) in a double-blind manner: \[1\] DAOIB + omega-3; \[2\] DAOIB + placebo. We will assess the patients every 8 weeks during the treatment period (weeks 0, 8, 16, and 24). We hypothesize that DAOIB combined with omega-3 will yield better efficacy than placebo in improving the cognitive function, global functioning and quality of life in patients with aMCI or mild AD.

Exploring Sustainable Alternatives to Marine Oils With Echium and Ahiflower Oils

This randomized, single-blind, crossover clinical trial aims to evaluate Echium oil and Ahiflower® oil as sustainable, plant-based alternatives to marine oils for omega-3 supplementation. Although fish oil is the primary dietary source of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), its use as a dietary supplementation presents several drawbacks, including high cost, potential contamination, limited global supply, and sustainability concerns. Echium and Ahiflower oils are naturally rich in stearidonic acid (SDA), a metabolic intermediate that bypasses the rate-limiting Δ6-desaturase step in the omega-3 pathway, potentially enhancing the conversion to EPA. Fifteen participants will undergo three 8-week intervention phases-Echium oil (15 g/day), Ahiflower oil (15 g/day), or EPA capsules (2.34 g/day)-separated by four-week washout periods. Blood samples will be collected before and after each phase to measure fatty acid profiles in plasma, plasma fractions, and erythrocytes using GC-MS. Anthropometric and biochemical parameters will also be assessed. The study seeks to determine whether SDA-rich plant oils can effectively increase EPA levels in humans and potentially reduce the reliance on marine oils for cardiovascular health benefits.

Omega-3D: Omega-3 for Diet-Driven Health Disparities

The goal of this clinical trial is to learn whether omega-3 fatty acid supplementation can reduce inflammation-related biomarkers and improve cardiovascular health in healthy adult volunteers with different genetic backgrounds. The main questions it aims to answer are: Does the response to omega-3 supplementation differ based on genetic variation in the FADS gene cluster (specifically rs174537)? Are changes in fatty acid ratios and inflammation markers greater among individuals of African ancestry compared to those of European ancestry? Researchers will compare omega-3 supplements to a placebo in a randomized, placebo-controlled crossover study to determine whether the Omega-3 supplementation is more effective in certain genetic and ancestry groups. Participants will take omega-3 supplements or a placebo daily for a defined period, then cross over to the other intervention. They will provide blood samples for analysis of fatty acid levels and inflammatory markers, complete questionnaires, and attend scheduled study visits.

Effect of Omega-3 Fatty Acids on Eye Blood Vessels in Type 1 Diabetes

The aim of this clinical trial is to learn if omega-3 fatty acid supplements help maintain healthy blood vessels in the eyes of adults with type 1 diabetes. It will also learn about the safety of omega-3 supplements. The main questions it aims to answer are: Do omega-3 supplements improve the health of retinal blood vessels in adults with type 1 diabetes? Are there any side effects when taking omega-3 supplements? Researchers will compare participants taking omega-3 supplements to a control group (if applicable) to see if the supplements help support retinal blood vessel health. Participants will: Take a daily omega-3 supplement for the duration of the study Attend regular eye exams to monitor changes in the retina Report any side effects or health changes during the study

Investigating the Feasibility of Krill Oil Intervention to Improve Muscle Function in Adults With Long-term Conditions

This study will recruit 30 adults (men and women, aged 18 years and over) who will be randomly assigned to one of two groups in a 12-week double-blind pilot trial. Participants will receive either: * Arm 1: Krill Oil group: 4 g/day of krill oil supplements (Superba™ Antarctic Krill Oil, 1000 mg capsules), or * Arm 2: Control group: 4 g/day of placebo (vegetable oil capsules). Participants will be instructed to maintain their usual diet and physical activity patterns throughout the study. Eligibility will be assessed using a health screening questionnaire, completed with the researcher's assistance, before obtaining informed consent. Habitual physical activity will be evaluated using the International Physical Activity Questionnaire (short form), and dietary intake will be assessed with the EPIC Food Frequency Questionnaire (FFQ) at both the beginning and end of the study. In addition, participants will record their fish consumption weekly using a dedicated logbook. Measurements will be taken at baseline and after 12 weeks, including: * Blood samples to assess inflammatory and metabolic markers. * Anthropometry and body composition, including weight, height, fat mass, fat percentage, and muscle mass (via ultrasound). * Muscle strength, measured using handgrip strength and maximal voluntary contraction (each performed three times with rest between attempts). * Physical performance, assessed with a 4-meter walk test at normal speed Upon completing the study, participants will receive a £50 voucher in appreciation of their contribution.

Investigation of the Effects of Omega-3 Supplementation in Chronic Kidney Disease Patients Diagnosed With Coronary Artery Disease and Dyslipidemia

Chronic kidney disease (CKD) is characterized by the slow, progressive, and irreversible loss of kidney function. Uremic toxins in CKD patients trigger an inflammatory response driven by various cytokines, chemokines, and other inflammatory molecules. As a result, increased oxidative stress and tissue damage are observed. In such an inflammatory environment, CKD patients are at higher risk of mortality due to the occurrence of adverse cardiovascular events. Omega-3 fatty acids are long-chain polyunsaturated fatty acids such as α-linolenic acid (ALA, 18:3), eicosapentaenoic acid (EPA, 20:5), and docosahexaenoic acid (DHA, 22:6). Omega-3 fatty acids are essential fatty acids because they cannot be synthesized in the body. There is increasing evidence that omega-3 fatty acids play a role in regulating inflammation and immune response by reducing the production of monocyte proinflammatory cytokines interleukin-1 (IL-1), IL-6, and TNF-α. Omega-3 has also been shown to alter abnormal lipid metabolism, reduce platelet aggregation, improve homocysteine levels, and improve endothelial function, blood pressure, heart rate, and oxidative stress. This study, which aims to observe the effectiveness of omega-3 supplementation in individuals who must have a diet low in omega-3 fatty acids due to certain dietary restrictions (especially fish), will be conducted at the Health Sciences University Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Education Research Hospital. 60 patients between the ages of 50-75 with chronic kidney disease diagnosed with coronary artery disease and dyslipidemia will be included in the study. The study will include patients with stage 2-4 chronic kidney disease who have a history of dyslipidemia and coronary artery disease, a glomerular filtration rate (GFR) of 20-60 ml/min, a body mass index (BMI) of 18-30 kg/m2, are 50-75 years old, and have LDL cholesterol \>70 mg/dl despite using equal doses of statins for at least 3 months. Ethics committee approval for the study was obtained from the Istanbul Medipol University "Non-Interventional Clinical Research" ethics committee. Randomly selected participants of similar sizes will be randomly divided into 2 groups. Group A (intervention group) will be asked to use 2 capsules containing 2000 mg (720 mg EPA, 480 mg DHA) omega 3 daily for 12 weeks. The total of these capsules taken in the morning and evening will provide the daily dose. Group B will be the control group. No supplement will be used in this group. Clinical, biochemical and functional status data of each participant will be obtained at the beginning of the study and after the 12-week intervention. Apart from the parameters checked in routine tests (Total cholesterol (mg/dL), LDL-C (mg/dL), HDL-C (mg/dL), triglyceride (mg/dL), CRP (mg/L), fasting blood glucose (mg/dL), calcium (mg/dL), phosphorus (mg/dL), sodium (mg/dL), potassium (mg/dL), Creatine, Urea, Uric acid), Homocysteine, IL-6, TNF-a, Superoxide dismutase (SOD) and Malondialdehyde (MDA) levels will be analyzed in Istanbul Beykent University Multidisciplinary Laboratory. Anthropometric measurements (height, weight) of the patients will be taken. In addition, the food consumption records and food consumption frequencies of the patients will be evaluated with the BeBIS program.