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Biology
New in Biology (page 26 of 29)
Feb 15, 2006 | 12:56 PM CST
Identification of Differences in Stretch Mark-prone Individuals May Assist In Developing Novel Preventive Therapies
New data, published in the December 2005 issue of the Aesthetic Surgery Journal, suggests new potential for the development of therapies to predict, prevent and treat stretch marks.
Jan 26, 2006 | 07:27 PM CST
Cationic Peptides and Cell Penetration
Controversy surrounds how certain cationic peptides enter the cell.
Jan 05, 2006 | 10:31 AM CST
Nutritional Requirements of Mature Women Examined
Professor Ronni Chernoff examines the nutritional requirements of older women in, “Supplement: Women and Micronutrients: Addressing The Gap Throughout The Life Cycle.”
Jan 02, 2006 | 12:36 PM CST
Stratum Corneum: The Role of Lipids and Ceramides
By: Nava Dayan, Ph.D., Lipo Chemicals Inc.
This paper reviews recent findings about the structure of the stratum corneum and the different models developed to better understand its function and behavior. The roles of intercellular lipids and ceramides as its key constituents are discussed.
Dec 23, 2005 | 05:57 PM CST
Novel Approaches for Molecular Biology and Skin Care Products
By: Lawrence A. Rheins, PhD, and Nicholas Benson, …
The increasing demand for performance-driven personal care products and the need to understand a product’s mechanism of action provides a scientific challenge to the industry formulator, toxicologist and expert evaluator.
Dec 23, 2005 | 05:12 PM CST
Effects of Occlusion (II): Wound Healing
By: Hongbo Zhai, MD, and Howard I. Maibach, MD, Un…
This is the second article in a series discussing effects of occlusion on skin. (The series opened in November 2003 with a focus on percutaneous absorption.) The present article focuses on the effects of occlusive and semipermeable membranes on wound healing and summarizes related data.
Dec 23, 2005 | 04:05 PM CST
Effects of Occlusion (III): Irritant and Allergic Contact Dermatitis
By: Hongbo Zhai, MD, and Howard I. Maibach, MD, Un…
This is the third article in a series discussing effects of occlusion on skin. Previously, we reviewed the effects of occlusion on the percutaneous absorption (C&T November 2003) and on wound healing (C&T April 2004). The present article focuses and summarizes the adverse effects of occlusion. Occlusion enhances skin hydration and increases percutaneous absorption of applied substances with exception. On the other hand, it may also increase the penetration of irritants and/or antigens entering into skin and hence may increase irritant and allergic contact dermatitis. Additionally, occlusion compromises skin barrier function by impairing passive transepidermal water loss at the application site, and hence aggravates the irritant effect of applied compounds.
Dec 23, 2005 | 03:04 PM CST
Gender and Dermatitis
By: Bobeck S. Modjtahedi, Sara P. Modjtahedi and H…
Are females more sensitive to allergens than males? If they are, is it because of something innate in female skin or because of life patterns of exposure to irritants?
Dec 13, 2005 | 11:26 PM CST
Ethnic Hair and Scalp Disorders
By: Valerie D. Callender and Cherie M. Young, Howa…
This article surveys the racial differences of hair, and then focuses on African-Americans, their hair grooming practices and how these practices relate to the common hair and scalp disorders unique to this population.
Dec 13, 2005 | 10:24 PM CST
Cosmetic Utilization of Micro Wound Healing Models
By: Hongbo Zhai and H.I. Maibach
Superficial wounds may be evaluated and treated in the cosmetic field. However, with natural wounds it is difficult to evaluate the effects of therapy upon the repair process because natural wounds may vary according to several factors, such as wound induction (physical or chemical), depth (superficial or deep), size (regular or irregular), site-to-site variability, and environmental factors (infection or not).