Skin Health Clinical Trial
Official title:
To Determine the Activity and Mechanisms of Cranberries to Attenuate Skin Photoaging and Improve Skin Health in Women
Previous studies have shown that cranberry phytochemicals scavenge reactive carbonyls. Cranberry polyphenols have been reported to attenuate collagen degradation and inhibit oxidative stress in human cells. We hypothesize that cranberry juice consumption will attenuate skin photoaging and improve skin health in women via alleviate oxidative stress.
Status | Recruiting |
Enrollment | 22 |
Est. completion date | February 3, 2026 |
Est. primary completion date | February 3, 2026 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 21 Years to 65 Years |
Eligibility | Inclusion Criteria: - Healthy - BMI (18.5-29.9) - Body weight =110 pounds Exclusion Criteria: - Skin Cancer - Smokers and frequent alcohol use - Pregnancy - Breast-feeding - intake of medication that might influence the outcome of the study - sunbathing or the use of tanning bed - intake of vitamin/mineral supplements |
Country | Name | City | State |
---|---|---|---|
United States | Food Science and human nutrition department at University of Florida | Gainesville | Florida |
Lead Sponsor | Collaborator |
---|---|
University of Florida | Ocean Spray, Inc. |
United States,
Heinrich U, Moore CE, De Spirt S, Tronnier H, Stahl W. Green tea polyphenols provide photoprotection, increase microcirculation, and modulate skin properties of women. J Nutr. 2011 Jun;141(6):1202-8. doi: 10.3945/jn.110.136465. Epub 2011 Apr 27. — View Citation
Heinrich U, Neukam K, Tronnier H, Sies H, Stahl W. Long-term ingestion of high flavanol cocoa provides photoprotection against UV-induced erythema and improves skin condition in women. J Nutr. 2006 Jun;136(6):1565-9. doi: 10.1093/jn/136.6.1565. — View Citation
Liu H, Liu H, Wang W, Khoo C, Taylor J, Gu L. Cranberry phytochemicals inhibit glycation of human hemoglobin and serum albumin by scavenging reactive carbonyls. Food Funct. 2011 Aug;2(8):475-82. doi: 10.1039/c1fo10087d. Epub 2011 Aug 8. — View Citation
Ramasamy R, Yan SF, Schmidt AM. Receptor for AGE (RAGE): signaling mechanisms in the pathogenesis of diabetes and its complications. Ann N Y Acad Sci. 2011 Dec;1243:88-102. doi: 10.1111/j.1749-6632.2011.06320.x. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change from baseline Skin color change after UV irradiation at 28 days | Irradiation will be applied to dorsal skin (region not typically exposed to the sun) using an FDA approved UVB phototherapy light and a UV light meter. At each assessment, skin color will be measured before and 24 h after irradiation. Skin color will be evaluated by a colorimeter using the 3-dimensional color system with L-, a-, and b-values. L- and b- values assess lightness and browning effects, respectively. The a-value (red/green-axis) is a measure for reddening (erythema). The ?a-values (a-value 24 h after irradiation minus a-value before irradiation) will compared between baseline through 3 months; decreasing ?a-values indicates a photoprotective effect. | Baseline, 28 days | |
Primary | Change from baseline Skin transepidermal water loss | Skin transepidermal water loss an will be measured using a Tewameter (CK Electronic GmbH, Germany). This is a handheld probes that allow for quick and easy measurements | Baseline, 28 days | |
Primary | Change from baseline SELS parameters | SELS (Surface evaluation of the Living Skin) parameters, including smoothness, roughness, scaliness, and wrinkles, will be determined using a Visioscan VC20. This hand-hold device scans a 1 cm x 1 cm skin area (https://www.courage-khazaka.de/en/scientific-products/all-products/imaging/16-wissenschaftliche-produkte/alle-produkte/150-visioscan-e). Visioscan VC20 scanner consists of a camera, a high- resolution video sensor, and a UVA light no hazardous to human skin. | Baseline, 28 days | |
Primary | Change in skin microbiome | For skin swabbing, a 4x4-cm square on a forearm will be swabbed with a cotton swab soaked in 0.9% sodium chloride with 0.1% Tween-20 in a Z-stroke manner. | Baseline, 28 days | |
Primary | Change in baseline skin pH | Skin pH will be assessed using a skin pH meter (CK Electronic GmbH, Germany). This is a handheld probes that allow for quick and easy measurements. | Baseline, 28 days | |
Primary | Change from baseline hydration | Skin hydration will be measured with a Corneometer (CK Electronic GmbH, Germany. This is a handheld probe that allows for quick and easy measurements. | Baseline, 28 days | |
Primary | Change in Skin erythema and melanin index | Skin erythema and melanin index will be assessed with a Mexameter, (CK Electronic GmbH, Germany). Each of these are handheld probes that allow for quick and easy measurements | Baseline, 28 days | |
Primary | Change in skin lipidome | Stratum corneum layer on forearm skin will be sampled with 16 D-squame® tapes using a standard noninvasive tape stripping technique. This will be sent for lipidomic analysis | baseline, 28 days | |
Secondary | Survival rate of human keratinocyte under UV light | The immortalized human keratinocyte cell line (HaCaT) will be cultured in Dulbecco's Modified Eagle Medium. Cells will be incubated with human serum collected after 2-hour and 4-hour cranberry juice intake or water intake for 24 hours. | 24 hours |
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