Research — aging

Research Summary:Background: Nutritional factors play a key role in normal dermatologic functioning. However, little is known about the effects of diet on skin-aging appearance.Objective: We evaluated the associations between nutrient intakes and skin-aging appearance.Design: Using data from the first National Health and Nutrition Examination Survey, we examined associations between nutrient intakes and skin aging in 4025 women aged 40 to 74 years. Nutrients were estimated from a 24-hour recall. Clinical examinations of the skin were conducted by dermatologists. Skin-aging appearance was defined as having a wrinkled appearance, senile dryness, and skin atrophy.Results: Higher vitamin C intakes were associated with a...

Research Summary: Skin aging goes beyond a chronological process and also results from extrinsic factors referred to as the exposome. Hyaluronic acid (HA) is an important component of the extracellular matrix, with loss starting at the age of 25. While many studies of HA focus on its topical use, few literature reviews solely address the use of topical HA in dermatology. This review describes the various characteristics of HA-containing cosmeceuticals, with a focus on skin aging and the impact of exposome factors on HA synthesis and degradation.A review was conducted using terms such as HA, hyaluronan, topical, dermatology, cosmetic, aging...