Ageing
Conditions
Keywords
Ageing
Brief summary
Skin aging is a complex process involving genetic and environmental factors. The investigators hope to learn more about how human genes and their function can contribute to skin aging and human health.
Detailed description
This study includes answering a survey on prior sun exposures, donating two small pieces of skin (4mm each), one blood draw, complexion analysis, photographs, and non-invasive tests such as skin surface lipid analysis. Your blood and tissue will be sent for DNA analysis and gene expression profiling.
Interventions
None listed
Sponsors
Stanford University
Study design
Observational model
OTHER
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* healthy female, age 18 or older, * Fitzpatrick type 1 or 2 skin, * able to read and understand written consent form, * body mass index normal or overweight range, * willing to take blood tests and donate skin samples
Exclusion criteria
* pregnant or lactating, * history of cosmetic surgery affecting the face, * use of prescription anti-aging medications for 2 weeks prior to study, * use of dietary supplements for 2 weeks prior to study, use of tanning beds or excessive light exposure (\>2 hours) in the past 2 weeks, * medical conditions which at the discretion of the investigator will have significant impact on ability to judge subjects' skin characteristics and age, sunless tanner use in past 2 weeks
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Assessment of age related gene expression changes in skin | Cross sectional |
Countries
United States
Outcome results
None listed