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| Name | Class |
|---|---|
| Tabriz University | OTHER |
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Antioxidants are potent scavengers of free radicals and serve as inhibitors of neoplastic processes. A large number of synthetic and natural antioxidants are known to induce beneficial effects on human health and disease prevention. Cardioprotective ability of grape seed extract polyphenols (GSEP) was studied in animals and humans. It has been suggested that grape seed proanthocyanidins have cardioprotective effects against reperfusion-induced injury of free radicals after ischemia. In another study, it is suggested that proanthocyanidins, the major polyphenols in red wine, might trap reactive oxygen species in aqueous series such as plasma and interstitial fluid of the arterial wall; thereby inhibiting oxidation of low-density lipoprotein (LDL) and showing an antiatherosclerotic activity. The only human model study designed to evaluate the effect of a standardized formulation of a GSEP (leucoselect-phytosome [LP]) on the susceptibility of LDL to oxidation in a group of heavy smokers, revealed that the antioxidant potential of GSEP may be effective in oxidative stress (smoking); however more investigational data are needed before wider use in clinical settings. Based on these observations, the investigators decided to evaluate the effect of GSEP in reducing OX-LDL in patients diagnosed with mild hyperlipidemia.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Grape Seed Extract | Experimental | Enrolled patients who are randomly assigned to receive Grape Seed Extract capsules |
|
| Placebo | Placebo Comparator | Placebo enrolled patients who are randomly assigned to receive placebo of Grape Seed Extract |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Grape Seed Extract (Vitagrape) | Drug | Drug {Each Containing: Grape Seed Extract100 mg +...} 1 capsule twice daily for 2 months |
|
| Measure | Description | Time Frame |
|---|---|---|
| OX-LDL | 8 weeks -{45 days wash out, crossed }- 8 weeks after crossed |
| Measure | Description | Time Frame |
|---|---|---|
| LDL | 8 weeks -{45 days wash out, crossed }- 8 weeks after crossed | |
| HDL | 8 weeks -{45 days wash out, crossed }- 8 weeks after crossed | |
| Blood Pressure |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Maryam Keshtkar-Jahromi, MD, | Shahid Beheshti University (MC) | Study Director |
| Hassan Argani, MD | Shahid Beheshti University (MC) | Study Chair |
| Abbas Delazar, PhD | Tabriz University | Principal Investigator |
| Ali Eskandari, MD | Shahid Beheshti University (MC) | Principal Investigator |
| Sharareh Gholamin, MD | Shahid Beheshti University (MC) | Principal Investigator |
| Seyed Mostafa Razavi, MD | Shahid Beheshti University (MC) | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Ghorbanihaghjo | Tabriz | East Azarbayejan | Iran | |||
| Maryam |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 10962138 | Background | Bagchi D, Bagchi M, Stohs SJ, Das DK, Ray SD, Kuszynski CA, Joshi SS, Pruess HG. Free radicals and grape seed proanthocyanidin extract: importance in human health and disease prevention. Toxicology. 2000 Aug 7;148(2-3):187-97. doi: 10.1016/s0300-483x(00)00210-9. | |
| 12628506 | Background | Bagchi D, Sen CK, Ray SD, Das DK, Bagchi M, Preuss HG, Vinson JA. Molecular mechanisms of cardioprotection by a novel grape seed proanthocyanidin extract. Mutat Res. 2003 Feb-Mar;523-524:87-97. doi: 10.1016/s0027-5107(02)00324-x. |
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| ID | Term |
|---|---|
| D006949 | Hyperlipidemias |
| ID | Term |
|---|---|
| D050171 | Dyslipidemias |
| D052439 | Lipid Metabolism Disorders |
| D008659 | Metabolic Diseases |
| D009750 | Nutritional and Metabolic Diseases |
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| ID | Term |
|---|---|
| D056604 | Grape Seed Extract |
| ID | Term |
|---|---|
| D010936 | Plant Extracts |
| D028321 | Plant Preparations |
| D001688 | Biological Products |
| D045424 | Complex Mixtures |
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| Placebo of Grape Seed Extract | Drug | Placebo {Each Containing: Gelatin 17mg + Cellulose Microcrystalline (Avicel) 67 mg + Dicalcium Phosphate 216mg} 1 capsule twice daily for 2 months |
|
| 8 weeks -{45 days wash out, crossed }- 8 weeks after crossed |
| Triglyceride | 8 weeks -{45 days wash out, crossed }- 8 weeks after crossed |
| Total Cholesterol | 8 weeks -{45 days wash out, crossed }- 8 weeks after crossed |
| Body Mass Index | 8 weeks -{45 days wash out, crossed }- 8 weeks after crossed |
| LDL/HDL | 8 weeks- {45 days wash out, crossed }- 8 weeks after crossed |
| Tehran |
| Tehran Province |
| 19814 |
| Iran |
| 11976164 | Background | Pataki T, Bak I, Kovacs P, Bagchi D, Das DK, Tosaki A. Grape seed proanthocyanidins improved cardiac recovery during reperfusion after ischemia in isolated rat hearts. Am J Clin Nutr. 2002 May;75(5):894-9. doi: 10.1093/ajcn/75.5.894. |
| 11480422 | Background | Joshi SS, Kuszynski CA, Bagchi D. The cellular and molecular basis of health benefits of grape seed proanthocyanidin extract. Curr Pharm Biotechnol. 2001 Jun;2(2):187-200. doi: 10.2174/1389201013378725. |
| 9559333 | Background | Bagchi D, Garg A, Krohn RL, Bagchi M, Bagchi DJ, Balmoori J, Stohs SJ. Protective effects of grape seed proanthocyanidins and selected antioxidants against TPA-induced hepatic and brain lipid peroxidation and DNA fragmentation, and peritoneal macrophage activation in mice. Gen Pharmacol. 1998 May;30(5):771-6. doi: 10.1016/s0306-3623(97)00332-7. |
| 9920515 | Background | Yamakoshi J, Kataoka S, Koga T, Ariga T. Proanthocyanidin-rich extract from grape seeds attenuates the development of aortic atherosclerosis in cholesterol-fed rabbits. Atherosclerosis. 1999 Jan;142(1):139-49. doi: 10.1016/s0021-9150(98)00230-5. |
| 16954821 | Background | Zhang FL, Gao HQ, Wu JM, Ma YB, You BA, Li BY, Xuan JH. Selective inhibition by grape seed proanthocyanidin extracts of cell adhesion molecule expression induced by advanced glycation end products in endothelial cells. J Cardiovasc Pharmacol. 2006 Aug;48(2):47-53. doi: 10.1097/01.fjc.0000242058.72471.0c. |
| 14564675 | Background | Vigna GB, Costantini F, Aldini G, Carini M, Catapano A, Schena F, Tangerini A, Zanca R, Bombardelli E, Morazzoni P, Mezzetti A, Fellin R, Maffei Facino R. Effect of a standardized grape seed extract on low-density lipoprotein susceptibility to oxidation in heavy smokers. Metabolism. 2003 Oct;52(10):1250-7. doi: 10.1016/s0026-0495(03)00192-6. |
| D004364 |
| Pharmaceutical Preparations |