Clinical trials: Cell Function
Diabetes, Pre-diabetes
Effect of Oral L-arginine 3.32 g a Day on Oxidative Stress Influencing Beta Cell Function and Insulin Resistance.
The objective of this clinical trial is to explore whether L-arginine supplementation with 3.32g/day may enhance antioxidant defenses in overweight and obese patients with pre-diabetes and metabolic syndrome, possibly providing…
- Conditions
- Diabetes, Pre-diabetes, Metabolic Syndrome
- Trial name
- L-BIOARG (NCT06686069)
- Testing
- bioarginina zero
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Federico II University
Normal Physiology
Collection of Peripheral Blood Stem Cells Using G-CSF and Plerixafor in Normal Volunteers
Background: Many treatments for immune system disorders involve the use of stem cells that have been collected from blood marrow.
- Trial name
- NCT01123499
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Cardiovascular Disease
ROS Signaling in Endothelial Function
The vascular endothelium (inner lining of cells in blood vessels) normally prevents vasospasm and thrombosis by producing nitric oxide and other regulatory substances.
- Trial name
- NCT01037465
- Testing
- N-acetylcysteine
- Where
- United States
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Boston University
Type 2 Diabetes Mellitus
Xenin-25: Novel Regulator of Insulin Secretion and Beta-cell Function
An intestinal hormone called Glucose-dependent Insulinotropic Polypeptide (GIP) is released into the blood immediately after ingestion of a meal and plays an important role in regulating blood sugar levels.
- Trial name
- NCT00949663
- Testing
- Glucose-dependent Insulinotropic Polypeptide (GIP), Xenin-25, Glucose-dependent Insulinotropic Polypeptide plus Xenin-25
- Where
- United States
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Washington University School of Medicine
Graft Rejection, Transplantation
Regenerative Cellular Therapies, Physiology, Pathology and Developmental Biology
This study aims to use tissue from deceased organ donors to investigate organ physiology, developmental biology, as well as the development of future regenerative cellular therapies.
- Conditions
- Graft Rejection, Transplantation, Diabetes Mellitus
- Trial name
- RCT (NCT02469207)
- Testing
- Removal of tissue post-mortem
- Where
- United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Cambridge University Hospitals NHS Foundation Trust
Cell Physiology Education
RGE-Based Cell Physiology Education for International Medical Students
This study evaluated an integrated active-learning approach for teaching cell physiology to international medical students at Tehran University of Medical Sciences.
- Trial name
- NCT07885553
- Testing
- RGE-Based Cell Physiology Education
- Where
- Iran
- Volunteers
- 128 people, healthy volunteers welcome
- Sponsor
- Tehran University of Medical Sciences
Head and Neck Cancer
Pathological Validation of Functional Imaging in Head and Neck Squamous Cell Carcinoma
Chemo-radiotherapy (CRT) is currently the cornerstone in the management of locoregional advanced head and neck cancer (HNC). Optimization of the quality of RT is therefore an important issue, if the investigators want to improve…
- Trial name
- NCT01827709
- Testing
- A polymerase chain reaction -based hypoxia classifier, Functional imaging before treatment., Immunohistochemical staining
- Where
- Belgium
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Cardiac Toxicity, Chemotherapeutic Agent Toxicity
Cardiac Magnetic Resonance Imaging in Patients With Non-Hodgkin Lymphoma or Hodgkin Lymphoma Receiving Doxorubicin
RATIONALE: Diagnostic procedures, such as cardiac magnetic resonance imaging, may help doctors detect early changes in the heart caused by chemotherapy.
- Conditions
- Cardiac Toxicity, Chemotherapeutic Agent Toxicity, Lymphoma
- Trial name
- NCT00577798
- Testing
- contrast-enhanced magnetic resonance imaging
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of Nebraska
Aging, Physical Activity
NEUROmuscular Training for Enhanced AGE Longevity
In recent years the research group on Prevention and Health in Exercise and Sport (PHES) has carried out numerous studies that have provided current and convincing evidence of the benefits of physical activity and exercise for…
- Conditions
- Aging, Physical Activity, Training
- Trial name
- NEUROAGE (NCT06620666)
- Testing
- Water-based power resistance training + Dietary supplement I (WPowDSI), Elastic band-based power resistance training + Dietary supplement I (EBPowDSI), Elastic band-based eccentric resistance training + Dietary supplement II (EBEccDSII)
- Where
- Spain
- Volunteers
- 390 people, healthy volunteers welcome
- Sponsor
- University of Valencia
Insulin Sensitivity, Polycystic Ovarian Syndrome
Assessment of Cod Protein as an Insulin-sensitizing Agent in Women With Polycystic Ovary Syndrome.
The objective of our study is to determine the effects of fish protein on insulin sensitivity in PCOS women with insulin resistance, and its mechanism of action on glucose and endocrine metabolism.
- Trial name
- PCOS (NCT01766557)
- Testing
- Semi-controlled nutritional intervention with fish protein diet, Semi-controlled intervention with other animal proteins
- Where
- Canada
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Laval University
Energy Metabolism
Acute Effects of Caffeine on Mitochondrial Function in Peripheral Blood Mononuclear Cells
This randomized, double-blind, placebo-controlled crossover study will evaluate the acute effects of caffeine consumption on substrate utilization, resting energy metabolism, and mitochondrial function in peripheral blood…
- Trial name
- MITOCAFFEINE (NCT07873047)
- Testing
- Caffeine (5 mg/kg)
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Pontificia Universidad Catolica de Chile
Type 2 Diabetes Mellitus
The Verona Newly Diagnosed Type 2 Diabetes Study
Type 2 diabetes mellitus is a complex disease whose clinical phenotype results from the variable combination of genetic and nongenetic factors.
- Trial name
- VNDS (NCT01526720)
- Where
- Italy
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- Universita di Verona
Subclinical Atherosclerotic Cardiovascular Disease, Neurocognitive Decline
MISTIC Study: Atherosclerosis, Neurocognition & Cardiovascular Signaling
The MISTIC study is a non-profit, cross-sectional clinical research project aimed at investigating the relationship between atherosclerosis and both cardiovascular and cognitive function in adult populations.
- Trial name
- MISTIC (NCT07520643)
- Testing
- Peripheral Vascular Imaging, Coro-CT, Neurocognitive Assesment
- Where
- Italy
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Diabetes Mellitus, Type 1
Anhydroglucitol in Children With Type 1 Diabetes
The investigators will measure blood levels of 1,5-anhydroglucitol in children with type 1 diabetes and correlate them with parameters related to functional beta-cell mass in diabetic patients.
- Trial name
- NCT05594706
- Testing
- Measurement of blood levels of 1,5-anhydroglucitol
- Where
- Switzerland
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University Hospital, Geneva
Healthy
Pilot Study: Effects of G-CSF on T Cell Function
This study will evaluate changes in T cells-infection-fighting white blood cells of the immune system-in people given a drug called G-CSF before donating stem cells (immature bone marrow cells) for transplantation.
- Trial name
- NCT00039650
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- National Institutes of Health Clinical Center (CC)
Exercise Induced CD8+ T Cell Recruitment and Characterization of Function and Phenotype of These Cells
Functional Characterization of CD8+ T Cells After Supramaximal Exercise
Healthy human subjects perform supramaximal exercise with venous blood samples obtained before and up to 60 minutes after the exercise bout.
- Trial name
- NCT06484101
- Testing
- Exercise
- Where
- Sweden
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- Karolinska Institutet
Ovarian Function Insufficiency, Fertility Issues
Impact of FSH Dosage During Ovarian Stimulation for IVF/ICSI in Granulosa Cells
To study the influence of different daily rec-FSH dosages (150 IU versus 300 IU), performed in the same patient in consecutive cycles, on the relation between FSH- and LH-receptors of the granulosa cells of the growing follicle.
- Conditions
- Ovarian Function Insufficiency, Fertility Issues, Infertility,Female, Infertility
- Trial name
- NCT05330130
- Testing
- Follitropin beta injection 150 IU, Follitropin beta injection 300 IU
- Where
- United Arab Emirates
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- ART Fertility Clinics LLC
Cell Migration, Cell Invasion
This Repeated Measures Parallel-group Investigation Will Examine the Influence of Short-term Melatonin Supplementation (5mg, 3 x Day for 72 Hours) on Cellular Responses, Functional Performance and Recovery Following an Acute Bout of Dynamic Resistance Exercise in Resistance Trained Men and Women
Oral Melatonin is a commercially available product available alone and as a constituent in a number of supplements. Previous research suggests that short-term supplementation with oral melatonin may amplify the recovery response…
- Conditions
- Cell Migration, Cell Invasion, Exercise Recovery
- Trial name
- NCT06617351
- Testing
- Melatonin
- Where
- United States
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- University of Central Florida
Vitamin A Deficiency
Efficacy of Newborn Vitamin A Supplementation in Improving Immune Function
Vitamin A supplementation at birth may increase survival of infants through one year of age by reducing mortality from infectious diseases, though current studies are not conclusive on this point.
- Trial name
- NCT01583972
- Testing
- retinyl palmitate
- Where
- Bangladesh
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center
Healthy
Postprandial Insulin Secretion and Appetite Regulation After Moderate Alcohol Consumption
A body of epidemiologic studies show that moderate alcohol consumption is associated with a protective effect against type 2 diabetes.
- Trial name
- NCT00524550
- Testing
- moderate alcohol consumption
- Where
- Netherlands
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- TNO