Recent in Biology (page 7 of 14)
Aug 6, 2013
A team of researchers from Duke University, Rockefeller University and the University of California San Francisco have identified the gene that causes pain in sunburned skin.
Aug 5, 2013
Pumice has a recognized application as an abrasive agent to promote exfoliation of the skin. In this study, different particle size fractions of pumice sampled from several geologic occurrences in São Miguel’s island, the Azores archipelago, were used in the preparation of exfoliation formulations. Gels and soap were prepared and characterized, and their efficacy evaluated.
Jul 30, 2013
Nicotinamide, the amide of niacin or vitamin B3, is used to treat arthritis. It also has demonstrated anti-inflammatory actions that may be of benefit in patients with inflammatory acne vulgaris. Nicotinamide, therefore, would appear to play a positive role in inhibiting inflammation but a negative role in aging. Are there other ways to stimulate sirtuins?
Jul 30, 2013
This article reviews the first scientific evidence confirming the presence of sirtuins in the skin, as well as their role in cell survival, senescence and longevity. This vital discovery could lead the way to new and innovative types of antiaging cosmetic ingredients that activate sirtuins.
Jul 26, 2013
Spider veins are popping up, literally, all over the world. This article attempts to establish possible causes for spider veins in addition to exploring their current and future treatment.
Jul 24, 2013
Stem cell research is a hot topic that cannot be ignored in today’s scientific realm. Its research may lead to the reversal of Parkinson’s and diabetes, to the growth of new organs, to strengthening bones and to healing damaged skin. The research of stem cells in conjunction with burn victims has led to innovation in another field—skin care.
Jul 23, 2013
Of the results, the study's primary investigator said, "Our study is the first to conclusively demonstrate that inadequate sleep is correlated with reduced skin health and accelerates skin aging. Sleep deprived women show signs of premature skin aging and a decrease in their skin’s ability to recover after sun exposure."
Jul 23, 2013
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.
Jul 17, 2013
Researchers from the University of Bath has constructed a "nanoneedle" at the end of an atomic force microscopy (AFM) probe to study the stratum corneum (SC) in detail, which may lead to better skin treatments and a greater understanding of skin aging.
Jul 17, 2013
Multiple factors affect the integrity of cell mitochondria, leading to loss of cell function, aging and apoptosis. In skin, this is expressed in the form of wrinkles, loss of tone, etc. To combat these effects, the author describes a technology that contains mitochondria-nourishing compounds to deliver antiaging benefits.
Determining the Keratolytic Activities of Benzoyl Peroxide, Retinoic Acid and Salicylic Acid In vivo
Jul 16, 2013
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.
Jul 15, 2013
In this paper, the authors focus on the dialogue between skin epithelial cells and immune cells in the context of an inflammatory situation, i.e., psoriasis. The aim is to design in vitro models relevant to in vivo skin inflammation that can then be used to screen and evaluate potential cosmetic products.