Effect of Whole-grape Powder on Body Composition, Fat and Bone Serum Biomarkers in Postmenopausal Women
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|ClinicalTrials.gov Identifier: NCT01717820|
Recruitment Status : Completed
First Posted : October 31, 2012
Last Update Posted : October 31, 2012
|Condition or disease||Intervention/treatment|
|Obesity||Dietary Supplement: Freeze-dried whole-grape powder|
Show Detailed Description
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||40 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||Double (Participant, Investigator)|
|Primary Purpose:||Basic Science|
|Official Title:||The Effect of Whole-grape Powder on Body Composition, Fat, and Bone Serum Biomarkers in Postmenopausal Women|
|Study Start Date :||April 2012|
|Primary Completion Date :||August 2012|
|Study Completion Date :||September 2012|
Experimental: Freeze-dried whole-grape powder
Freeze-dried whole-grape powder (46g/day)will be provided to participants for 12 weeks.
Dietary Supplement: Freeze-dried whole-grape powder
Participants are provided the equivalent of two servings per day of freeze-dried grape powder in a double-blind, placebo controlled, randomized design to determine the impact of the phytochemical, resveratrol, on biomarkers of adipose metabolism and bone metabolism.
- Effect of freeze-dried whole-grape powder on body composition in postmenopausal women [ Time Frame: 12 weeks ]Body composition measurements will be taken to assess the participant's percentage of fat and lean tissue. Height and weight of participants will be measured with a stadiometer and a calibrated electronic scale. In addition, waist circumference will be measured. The waist-to-hip ratio at the minimal waist and maximal hip locations will be measured with a steel measuring tape. Height (m) and weight (kg) will be used to measure the participant's body mass index. Participants will undergo a dual energy X-ray absorptiometry (DXA) scan. Total bone mineral density, percentages of fat and lean body mass and regional values of the android or gynoid regions will be measured.
- Effect of freeze-dried whole-grape powder on biomarkers of inflammation, adipose metabolism, and bone formation in post menopausal women. [ Time Frame: 12 weeks ]Freeze-dried whole-grape powder may improve body composition by increasing antioxidant capacity, resulting in decreased inflammatory eicosanoids derived from linoleic acid (ω-6), essential fatty acids (EFA) by cyclooxygenase-2 (Cox-2), and 5-lipoxygenase (5-Lox) enzymes such as prostaglandin E2 (PGE2) and leukotriene B4 (LTB4); PGE2 and LTB4 inhibit adipose tissue activity, indicated by reduction in fat using DXA, and markers of fat tissue metabolism such as serum leptin and serum adiponectin. In addition, it is hypothesized that freeze-dried whole-grape powder may reduce markers of bone resorption such as cross-linked N-teleopeptide of type I collagen (NTX) and increase bone formation markers such as bone-specific alkaline phosphatase (ALP), osteocalcin (OC), and insulin-like growth factor 1(IGF-1).
- Effect of freeze-dried whole-grape powder on bone resorption in postmenopausal women [ Time Frame: 12 weeks ]Freeze-dried whole-grape powder may reduce markers of bone resorption such as cross-linked N-teleopeptide of type I collagen (NTX) and increase bone formation markers such as bone-specific alkaline phosphatase (ALP), osteocalcin (OC), and insulin-like growth factor 1(IGF-1).
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01717820
|United States, Texas|
|Institute for Women's Health, Texas Woman's University|
|Denton, Texas, United States, 76204-5876|
|Principal Investigator:||Nancy M DiMarco, PhD||Professor and Director, Institute for Women's Health|