The Effects of Restricted Dietary of AGEs on the Glycemic Control, Oxidative Stress and Inflammation

Study Overview
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Brief Summary
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To evaluate the effects of dietary restriction of advanced glycated end products (AGEs) on glycemic control, oxidative stress and systemic inflammation, in a randomized, 44 subjects with metabolic syndrome for 8 weeks.Both groups will be advised to follow same low energy diet and no changing in physical activity pattern.Parameters related to metabolic syndrome, anthropocentric factors, oxidative stress(Malondialdehyde), CML(AGEs factor in blood) and systemic inflammation factors (hs-CRP وTNF-α ) will be measured at the baseline and at the end of the study.

Detailed Description
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Metabolic syndrome (MS) is a cluster of cardiovascular risk factor abnormalities associated with increased risk of type 2 diabetes mellitus, cardiovascular disease, and all-cause mortality. Non-enzymatic glycation plays an important role in the development of physiological and pathophysiological processes such as aging, diabetes, atherosclerosis, and chronic renal failure. Preventing glycation can minimize diabetic complications. Advanced glycation end products (AGEs) are formed endogenously when the carbonyl groups of reducing sugars nonenzymatically react with the free amino groups on proteins. AGEs are generated in vivo as a normal consequence of metabolism, but their formation is accelerated under conditions of hyperglycemia, hyperlipidemia and increased oxidative stress. It can also form in food processing and the variety and the amount of dietary AGEs (dAGE) depend on food nutrients, the heating used in food processing, pH conditions, presence of some metal ions (Cu++, Fe++) and water content. In this study 2 groups of metabolic syndrome patients(22 in each group) will receive same low calorie diet and one of the groups plus restricted dietary AGEs according to the international references.Along 8 weeks the investigators will talk to each patient by phone and every months the participants will come and the investigators will take anthropocentric measurements and the recommendations for diets will review. The three-day 24-hour recall food questionnaire will take at first,middle and the end of program.

Official Title
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The Effects of Restricted Dietary of Advanced Glycation End Products(AGEs) on the Glycemic Control, Oxidative Stress and Systemic-inflammation in Patients With Metabolic.

Conditions
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Metabolic Syndrome

Intervention / Treatment
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* Other: AGEs restricted diet


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: 18-70 years of age having three of the following five features: Increased waist circumference (≥102 cm in men and ≥88 cm in women), elevated TG (≥150 mg/dl), reduced HDL-C (≤40 mg/dl in men and ≤50 mg/dl in women), elevated blood pressure (≥130/85 mm Hg or on treatment for hypertension) and elevated glucose (≥100 mg/dl), according to the National Cholesterol Education Program Adult Treatment Panel III report Exclusion Criteria: history of allergy clinically diagnosed renal, pituitary, thyroid, infections and inflammations, cancer and using of insulin, using multivitamin mineral and vitamin B6 suplements. Using any history of cancers. pregnancy, lactation.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: AGEs restricted diet<br>Low calorie diet + AGEs restricted diet | Other: AGEs restricted diet<br>* Diet modification to reduce advanced glycation end products in diet. for example to change ways of cooking, time of cooking and also omit some foods.<br>|
| No Intervention: control<br>Low calorie diet | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Serum Levels of carboxymethyl-lysine(CML) | specific serum AGEs | 8 weeks | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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AGEs( Advanced glycation end products)