Recent in Biology (page 14 of 27)
Aug 16, 2011
Researchers at the University of Illinois have confirmed the presence of bacteria associated with early childhood caries (ECC) in infant saliva. The research, which was published in PLoS One in the article “Comparative analysis of salivary bacterial microbiome diversity in edentulous infants and their mothers or primary care givers using pyrosequencing” proposes the need for infant oral care.
Jul 13, 2011
Following is an excerpt adapted from Physiology of the Skin, Third Edition, which explores the process of keratinization.
Jun 30, 2011 | Howard I. Maibach, MD, University of California School of Medicine; Ali Alikhan, MD, Mayo Clinic; and Fatima S. Alikhan, Columbia University
Keratolysis is the separation or loosening of the stratum corneum (SC), and is part of the natural cycle of skin renewal and regeneration. Disordered keratolysis, resulting in skin overgrowth or excessive desquamation, is responsible for various skin disorders.
Jun 16, 2011
Researchers at New York University's Langone Medical Center have identified the communication pathway between hair follicles and melanocyte stem cells that regenerates pigmented hair.
Jun 1, 2011 | Zoe Diana Draelos, MD, Dermatology Consulting Services; and Peter T. Pugliese, MD
The present article, adapted from Draelos and Pugliese*, provides a review of the chemistry involved in the glycation process to assist formulators in developing topical or nutricosmetic solutions for mature skin care.
Jun 1, 2011 | Howard I. Maibach, MD, University of California School of Medicine; and Jackie Levin, MD, Largo Medical Center
This paper briefly reviews the basic science of pH and buffering capacity and the deleterious effects of increased pH in mature skin. In more detail, the authors consider which components of the stratum corneum (SC) are likely responsible for buffering capacity in skin of all ages, and discuss physiologic changes in the SC that may contribute to the decreased buffering capacity detected in mature skin.
May 26, 2011
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.
May 10, 2011
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*
Apr 6, 2011 | Howard I. Maibach, MD, and Hongbo Zhai, MD, University of California School of Medicine; and
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.
Mar 16, 2011
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.
Mar 2, 2011 | Howard I. Maibach, MD, University of California School of Medicine; and Hongbo Zhai, MD, University of California
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.
Mar 2, 2011 | Katie Schaefer, Cosmetics & Toiletries magazine
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.