Recent in Biology (page 23 of 23)

Researchers Observe Hair Follicle Communication for Hair Growth

Researchers at the University of Southern California's Keck School of Medicine have discovered that stem cells in hair follicles communicate with each other via a specific molecular activator/inhibitor pair to stimulate hair growth.

Borate Glass Nanofibers for Wound Healing

Recent research published by the American Ceramic Society shows that a particular borate glass composition can be used to form cottony glass fibers 300 nm to 5 μm in diameter to mimic the structure of fibrin, which in turn has been shown to support the wound healing process.

A Review of Anti-irritants, Part II: Moisturizer, Anti-irritant Efficacy and Overall Interpretation*

his column is the second of a two-part series about anti-irritants. Part I appeared in the March 2011 issue and covered anti-irritants, irritant reaction and barrier cream efficacy. The present column summarizes the efficacy of moisturizers and anti-irritant substances and provides an overall interpretation.

Research Identifies Regulator to Start/Stop Skin Growth

A recent report from Children's Hospital Boston reveals how researchers in the Stem Cell Program have discovered a regulator of gene activity that tells epidermal stem cells when to grow more skin or that can sense cell crowding and cease the growth.

A Review of Anti-Irritants, Part I: Barrier Cream Efficacy on Contact Dermatitis*

This column is the first of a two-part series about anti-irritants. Part two will appear in the April 2011 issue. While the first part covers anti-irritants, irritant reaction and barrier cream efficacy, part two will summarize the efficacy of moisturizers and anti-irritant substances and provide an overall interpretation of both parts I and II.

Desmosomes: Adhesion Answers to Skin

Garrod became interested in cell adhesion after reading a paper on the differential adhesion hypothesis by Malcolm Steinberg, and he more recently discovered the mechanism that allows these structures to tightly bind cells together.

P. Acnes Found to Cause Infections Other Than Acne

Peter Lambert, PhD, a professor of microbiology at Aston University's school of life and health sciences, has reported that Propionibacterium acnes (P. acnes), the bacterium that causes acne, may already be present within the body and cause other infections.

Research Suggests Triclosan Exposure May Increase Allergies

A study conducted by the University of Michigan's School of Public Health suggests that individuals exposed to triclosan in personal care products may suffer from increased allergies.

Researchers Investigate Photocontact Allergy in Sunscreens

Researchers at the University of Gothenburg and Chalmers University of Technology have investigated what happens when sun care products break down in the presence of UV radiation to better understand photocontact allergy with this process.

New Findings Regarding Mechanism of Contact Nickel Allergy

Recent work published in Nature Immunology shows new findings regarding contact nickel allergy. Research from the University Hospital Mannheim and University of Heidelberg, in Germany, suggests the human Toll-like receptor 4 is crucial in the development of this skin reaction.

Capsaicin in Pain Relief Creams as a Co-carcinogen?

Researchers from the Hormel Institute at the University of Minnesota have found that capsaicin formulated in pain relief creams may promote skin cancer.

Variations in Pigmentation and Ultrastructural Skin Differences Among Ethnic Groups

As formulators create products for varying ethnic backgrounds and with diverse skin types, an understanding of differences in pigmentation and skin structure and function becomes more important. This column reviews recent studies on the structural, genetic and ultraviolet (UV)-responsive differences in skin pigmentation to allow the formulator to create successful products for varying ethnicities and to accurately measure pigmentation.

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