Recent in Biology (page 20 of 20)

Study of Twins Correlates Aging with Genetics

While up to 40% of aging-related changes in skin are due to non-genetic factors, a recent study found a high correlation between the photodamage scores among both monozygotic (identical) and dizygotic (fraternal) twins.

The Effects of Showering Too Often, Too Hot and Too Long

This article is about something that anyone with teenage children will recognize: the fact that while you cannot get pre-teens to go into the shower, you cannot get teenagers out of the shower. However, when their showering is too often, too hot and too long, they are steam-stripping their skin.

Anti-inflammatory Action Found in Skin's Microflora

Researchers at the University of California at San Diego have provided a molecular basis to understand the "hygiene hypothesis," the theory that the lack of childhood exposure to infectious agents and microorganisms decreases their susceptibility to disease, which suggests therapeutic approaches to inflammatory skin diseases.

Skin Penetration of EGCG, Quercetin Examined

A recent study in Skin Pharmacoloy and Physiology examined the delivery of epigallocatechin-3-gallate and quercetin from green tea and Ginkgo biloba extracts into the skin from cosmetic formulations.

Microdermabrasion to Remodel Damaged Skin

In a recent study, microdermabrasion using a coarse grit hand piece on photo-damaged skin was found to induce a remodeling cascade in skin similar to that seen in incisional wound healing.

The Hardening Phenomenon in Irritant Contact Dermatitis: Cosmetic Implications

Irritant contact dermatitis (ICD) is common and poses a significant problem in high risk populations including hairdressers, health care workers, metal-working professionals and cleaning specialists.

University Study Advances Understanding of Melanin Formation

Melanin cells can be formed differently than previously thought, a new study from a Swedish medical university has revealed. These results also indicate the discovery of a new type of stem cell.

Researchers Identify Stem Cell Proteins for Hair/Skin Regeneration

Researchers at Rockefeller University have identified two proteins that enable skin stem cells to regenerate themselves to produce either skin or hair.

The arNOX Enzyme: Implications for Intrinsic Aging

This article describes a membrane-bound enzyme found in skin whose activity increases as biological age increases. The enzyme, located on the external surface of fibroblasts and keratinocytes, generates free radicals. The present work identifies the biological mechanism of the enzyme and its relationship to the appearance of aging in skin.

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