Effects of Polyphenol Containing Antioxidants on Oxidative Stress in Diabetic Patients
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Purpose
There has been an increase in the prevalance of type 2 diabetes in developed countries in recent years. The major contributing factors have been genetic predisposition, environmental factors, and unhealthy eating habits and stress. Adverse effects on cardiovascular and renal systems after prolonged hyperglycemia bring serious burden to patients, to their families and to the society.
Oxidative stress has been defined as the imbalance between the production of reactive oxygen molecules and antioxidant protective molecules. It has been claimed that oxidative stress that the organism is exposed to and disturbance in anti-oxidant mechanisms have been important in the initiation of diabetes and its complications. Malondialdehyde is the final product of lipid peroxidation and it is an aldehyde as well. It has been accepted that malondialdehyde has been a biomarker in measuring oxidative stress.
Type 2 diabetic people who are between 40 -65 years of age will be the subjects of our study. The levels of fasting glucose, HbA1c, LDL, triglyceride, AST and ALT and also malondialdehyte, hydrogen peroxide and oxidative stress will be determined in patients blood after making them consume a 1500 calory standard diet for 2 weeks, The patients will be randomly divided into two grouos at the end of the two weeks. Group 1 will take placebo in addition to the diet, Group 2 will receive polyphenol containing capsules with pomegranate extract (500 mg), green tea extract (300 mg) and a little bit of (60 mg) vitamin C for three months. At the end of three months the measurement of biochemical parameters will be repeated.
Patients with cardiac, renal, liver disease and smokers will be excluded from the study.
Patients in both groups will have a diet rich in vegetables, three servings of fruit, maximum three slices of bread with a total calory of 1500.
In addition to these, both groups will have a weekly aerobic exercise regimen of 150 minutes conducted after breakfast.
The biochemical results of the two groups will be compared at the end of the experiment and they will be statistically evaluated.
| Condition | Intervention |
|---|---|
|
Type 2 Diabetes |
Dietary Supplement: PomGT (500 mg pomegranate extracts, 300 mg green tea and 60mg vitamin C) |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Intervention Model: Parallel Assignment Masking: Double Blind (Subject, Investigator) Primary Purpose: Treatment |
| Official Title: | Effects Polyphenol Containing Antioxidants on Oxidative Stress in Diabetic Patients |
- Amelioration of antioxidative capacity in diabetic patients by polyphenol containig antioxidants [ Time Frame: 3 months ] [ Designated as safety issue: Yes ]
- treatment of type 2 diabetes by polyphenol containing antioxidants [ Time Frame: 3 months ] [ Designated as safety issue: Yes ]
| Estimated Enrollment: | 120 |
| Study Start Date: | May 2008 |
| Estimated Study Completion Date: | October 2008 |
| Estimated Primary Completion Date: | July 2008 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Placebo Comparator: Group 1
We planned to compare a study group of 60 subjects with a placebo group of 60 subjects
|
Dietary Supplement: PomGT (500 mg pomegranate extracts, 300 mg green tea and 60mg vitamin C)
1 tablet/day for 3 months
Other Name: Comilac PomGT tablets
|
|
Active Comparator: Group 2
We planned to compare a study group of 60 subjects with a placebo group of 60 subjects
|
Dietary Supplement: PomGT (500 mg pomegranate extracts, 300 mg green tea and 60mg vitamin C)
1 tablet/day for 3 months
Other Name: Comilac PomGT tablets
|
Eligibility| Ages Eligible for Study: | 40 Years to 65 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Type 2 diabetic patients between 40-65 years of age will be eligible for the study
Exclusion Criteria:
- Patients with cardiac, renal, liver disease and smokers will be excluded from the study.
Contacts and Locations| Contact: Aysen Fenercioglu, Assist Prof Dr. | (+90 537) 9645751 | aysenfenerci@hotmail.com |
| Contact: Ece Genc, Prof. Dr. | (+90 535) 2178145 | egenc@yeditepe.edu.tr |
| Turkey | |
| Sisli Etfal Education and Research Hospital | Recruiting |
| Istanbul, Turkey | |
| Contact: Tayyibe Saler, Dr (+90 505) 7734300 taybe1970@hotmail.com | |
| Contact: Aysen Fenercioglu, Assist Prof. Dr. (+90 537) 9645751 aysenfenerci@hotmail.com | |
| Sub-Investigator: Tayyibe Saler, Dr | |
| Principal Investigator: Aysen Fenercioglu, Assist Prof. Dr. | |
| Principal Investigator: | Aysen Fenercioglu, Assist Prof. Dr. | Yeditepe University Medical Faculty, Family medicine Department |
More Information
No publications provided
| Responsible Party: | Effects of polyphenol containing antioxidants on oxidative stress in type 2 diabetic patients, Yeditepe University Medical Faculty, Family Medicine Department |
| ClinicalTrials.gov Identifier: | NCT00682149 History of Changes |
| Other Study ID Numbers: | DM2-AOC |
| Study First Received: | May 20, 2008 |
| Last Updated: | May 20, 2008 |
| Health Authority: | Turkey: Ethics Committee |
Keywords provided by Yeditepe University Hospital:
|
Oxidative stress malondialdehyde glutathione diabetes |
polyphenol containing antioxidants diet rich in vegetables weekly aerobic exercise |
Additional relevant MeSH terms:
|
Antioxidants Diabetes Mellitus Diabetes Mellitus, Type 2 Glucose Metabolism Disorders Metabolic Diseases Endocrine System Diseases Ascorbic Acid |
Vitamins Molecular Mechanisms of Pharmacological Action Pharmacologic Actions Protective Agents Physiological Effects of Drugs Micronutrients Growth Substances |
ClinicalTrials.gov processed this record on June 17, 2013